Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 1 | /* |
| 2 | * sata_mv.c - Marvell SATA support |
| 3 | * |
Mark Lord | 40f21b1 | 2009-03-10 18:51:04 -0400 | [diff] [blame] | 4 | * Copyright 2008-2009: Marvell Corporation, all rights reserved. |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 5 | * Copyright 2005: EMC Corporation, all rights reserved. |
Jeff Garzik | e2b1be5 | 2005-11-18 14:04:23 -0500 | [diff] [blame] | 6 | * Copyright 2005 Red Hat, Inc. All rights reserved. |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 7 | * |
Mark Lord | 40f21b1 | 2009-03-10 18:51:04 -0400 | [diff] [blame] | 8 | * Originally written by Brett Russ. |
| 9 | * Extensive overhaul and enhancement by Mark Lord <mlord@pobox.com>. |
| 10 | * |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 11 | * Please ALWAYS copy linux-ide@vger.kernel.org on emails. |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; version 2 of the License. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 25 | * |
| 26 | */ |
| 27 | |
Jeff Garzik | 4a05e20 | 2007-05-24 23:40:15 -0400 | [diff] [blame] | 28 | /* |
Mark Lord | 85afb93 | 2008-04-19 14:54:41 -0400 | [diff] [blame] | 29 | * sata_mv TODO list: |
| 30 | * |
Mark Lord | 85afb93 | 2008-04-19 14:54:41 -0400 | [diff] [blame] | 31 | * --> Develop a low-power-consumption strategy, and implement it. |
| 32 | * |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 33 | * --> Add sysfs attributes for per-chip / per-HC IRQ coalescing thresholds. |
Mark Lord | 85afb93 | 2008-04-19 14:54:41 -0400 | [diff] [blame] | 34 | * |
| 35 | * --> [Experiment, Marvell value added] Is it possible to use target |
| 36 | * mode to cross-connect two Linux boxes with Marvell cards? If so, |
| 37 | * creating LibATA target mode support would be very interesting. |
| 38 | * |
| 39 | * Target mode, for those without docs, is the ability to directly |
| 40 | * connect two SATA ports. |
| 41 | */ |
Jeff Garzik | 4a05e20 | 2007-05-24 23:40:15 -0400 | [diff] [blame] | 42 | |
Mark Lord | 65ad7fef | 2009-04-06 15:24:14 -0400 | [diff] [blame] | 43 | /* |
| 44 | * 80x1-B2 errata PCI#11: |
| 45 | * |
| 46 | * Users of the 6041/6081 Rev.B2 chips (current is C0) |
| 47 | * should be careful to insert those cards only onto PCI-X bus #0, |
| 48 | * and only in device slots 0..7, not higher. The chips may not |
| 49 | * work correctly otherwise (note: this is a pretty rare condition). |
| 50 | */ |
| 51 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 52 | #include <linux/kernel.h> |
| 53 | #include <linux/module.h> |
| 54 | #include <linux/pci.h> |
| 55 | #include <linux/init.h> |
| 56 | #include <linux/blkdev.h> |
| 57 | #include <linux/delay.h> |
| 58 | #include <linux/interrupt.h> |
Andrew Morton | 8d8b600 | 2008-02-04 23:43:44 -0800 | [diff] [blame] | 59 | #include <linux/dmapool.h> |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 60 | #include <linux/dma-mapping.h> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 61 | #include <linux/device.h> |
Saeed Bishara | c77a2f4 | 2009-12-06 18:26:18 +0200 | [diff] [blame] | 62 | #include <linux/clk.h> |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 63 | #include <linux/platform_device.h> |
| 64 | #include <linux/ata_platform.h> |
Lennert Buytenhek | 15a3263 | 2008-03-27 14:51:39 -0400 | [diff] [blame] | 65 | #include <linux/mbus.h> |
Mark Lord | c46938c | 2008-05-02 14:02:28 -0400 | [diff] [blame] | 66 | #include <linux/bitops.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 67 | #include <linux/gfp.h> |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 68 | #include <scsi/scsi_host.h> |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 69 | #include <scsi/scsi_cmnd.h> |
Jeff Garzik | 6c08772 | 2007-10-12 00:16:23 -0400 | [diff] [blame] | 70 | #include <scsi/scsi_device.h> |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 71 | #include <linux/libata.h> |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 72 | |
| 73 | #define DRV_NAME "sata_mv" |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 74 | #define DRV_VERSION "1.28" |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 75 | |
Mark Lord | 40f21b1 | 2009-03-10 18:51:04 -0400 | [diff] [blame] | 76 | /* |
| 77 | * module options |
| 78 | */ |
| 79 | |
| 80 | static int msi; |
| 81 | #ifdef CONFIG_PCI |
| 82 | module_param(msi, int, S_IRUGO); |
| 83 | MODULE_PARM_DESC(msi, "Enable use of PCI MSI (0=off, 1=on)"); |
| 84 | #endif |
| 85 | |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 86 | static int irq_coalescing_io_count; |
| 87 | module_param(irq_coalescing_io_count, int, S_IRUGO); |
| 88 | MODULE_PARM_DESC(irq_coalescing_io_count, |
| 89 | "IRQ coalescing I/O count threshold (0..255)"); |
| 90 | |
| 91 | static int irq_coalescing_usecs; |
| 92 | module_param(irq_coalescing_usecs, int, S_IRUGO); |
| 93 | MODULE_PARM_DESC(irq_coalescing_usecs, |
| 94 | "IRQ coalescing time threshold in usecs"); |
| 95 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 96 | enum { |
| 97 | /* BAR's are enumerated in terms of pci_resource_start() terms */ |
| 98 | MV_PRIMARY_BAR = 0, /* offset 0x10: memory space */ |
| 99 | MV_IO_BAR = 2, /* offset 0x18: IO space */ |
| 100 | MV_MISC_BAR = 3, /* offset 0x1c: FLASH, NVRAM, SRAM */ |
| 101 | |
| 102 | MV_MAJOR_REG_AREA_SZ = 0x10000, /* 64KB */ |
| 103 | MV_MINOR_REG_AREA_SZ = 0x2000, /* 8KB */ |
| 104 | |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 105 | /* For use with both IRQ coalescing methods ("all ports" or "per-HC" */ |
| 106 | COAL_CLOCKS_PER_USEC = 150, /* for calculating COAL_TIMEs */ |
| 107 | MAX_COAL_TIME_THRESHOLD = ((1 << 24) - 1), /* internal clocks count */ |
| 108 | MAX_COAL_IO_COUNT = 255, /* completed I/O count */ |
| 109 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 110 | MV_PCI_REG_BASE = 0, |
Mark Lord | 615ab95 | 2006-05-19 16:24:56 -0400 | [diff] [blame] | 111 | |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 112 | /* |
| 113 | * Per-chip ("all ports") interrupt coalescing feature. |
| 114 | * This is only for GEN_II / GEN_IIE hardware. |
| 115 | * |
| 116 | * Coalescing defers the interrupt until either the IO_THRESHOLD |
| 117 | * (count of completed I/Os) is met, or the TIME_THRESHOLD is met. |
| 118 | */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 119 | COAL_REG_BASE = 0x18000, |
| 120 | IRQ_COAL_CAUSE = (COAL_REG_BASE + 0x08), |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 121 | ALL_PORTS_COAL_IRQ = (1 << 4), /* all ports irq event */ |
| 122 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 123 | IRQ_COAL_IO_THRESHOLD = (COAL_REG_BASE + 0xcc), |
| 124 | IRQ_COAL_TIME_THRESHOLD = (COAL_REG_BASE + 0xd0), |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 125 | |
| 126 | /* |
| 127 | * Registers for the (unused here) transaction coalescing feature: |
| 128 | */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 129 | TRAN_COAL_CAUSE_LO = (COAL_REG_BASE + 0x88), |
| 130 | TRAN_COAL_CAUSE_HI = (COAL_REG_BASE + 0x8c), |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 131 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 132 | SATAHC0_REG_BASE = 0x20000, |
| 133 | FLASH_CTL = 0x1046c, |
| 134 | GPIO_PORT_CTL = 0x104f0, |
| 135 | RESET_CFG = 0x180d8, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 136 | |
| 137 | MV_PCI_REG_SZ = MV_MAJOR_REG_AREA_SZ, |
| 138 | MV_SATAHC_REG_SZ = MV_MAJOR_REG_AREA_SZ, |
| 139 | MV_SATAHC_ARBTR_REG_SZ = MV_MINOR_REG_AREA_SZ, /* arbiter */ |
| 140 | MV_PORT_REG_SZ = MV_MINOR_REG_AREA_SZ, |
| 141 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 142 | MV_MAX_Q_DEPTH = 32, |
| 143 | MV_MAX_Q_DEPTH_MASK = MV_MAX_Q_DEPTH - 1, |
| 144 | |
| 145 | /* CRQB needs alignment on a 1KB boundary. Size == 1KB |
| 146 | * CRPB needs alignment on a 256B boundary. Size == 256B |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 147 | * ePRD (SG) entries need alignment on a 16B boundary. Size == 16B |
| 148 | */ |
| 149 | MV_CRQB_Q_SZ = (32 * MV_MAX_Q_DEPTH), |
| 150 | MV_CRPB_Q_SZ = (8 * MV_MAX_Q_DEPTH), |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 151 | MV_MAX_SG_CT = 256, |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 152 | MV_SG_TBL_SZ = (16 * MV_MAX_SG_CT), |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 153 | |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 154 | /* Determine hc from 0-7 port: hc = port >> MV_PORT_HC_SHIFT */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 155 | MV_PORT_HC_SHIFT = 2, |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 156 | MV_PORTS_PER_HC = (1 << MV_PORT_HC_SHIFT), /* 4 */ |
| 157 | /* Determine hc port from 0-7 port: hardport = port & MV_PORT_MASK */ |
| 158 | MV_PORT_MASK = (MV_PORTS_PER_HC - 1), /* 3 */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 159 | |
| 160 | /* Host Flags */ |
| 161 | MV_FLAG_DUAL_HC = (1 << 30), /* two SATA Host Controllers */ |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 162 | |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 163 | MV_COMMON_FLAGS = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 164 | ATA_FLAG_MMIO | ATA_FLAG_PIO_POLLING, |
Mark Lord | ad3aef5 | 2008-05-14 09:21:43 -0400 | [diff] [blame] | 165 | |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 166 | MV_GEN_I_FLAGS = MV_COMMON_FLAGS | ATA_FLAG_NO_ATAPI, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 167 | |
Mark Lord | 40f21b1 | 2009-03-10 18:51:04 -0400 | [diff] [blame] | 168 | MV_GEN_II_FLAGS = MV_COMMON_FLAGS | ATA_FLAG_NCQ | |
| 169 | ATA_FLAG_PMP | ATA_FLAG_ACPI_SATA, |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 170 | |
| 171 | MV_GEN_IIE_FLAGS = MV_GEN_II_FLAGS | ATA_FLAG_AN, |
Mark Lord | ad3aef5 | 2008-05-14 09:21:43 -0400 | [diff] [blame] | 172 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 173 | CRQB_FLAG_READ = (1 << 0), |
| 174 | CRQB_TAG_SHIFT = 1, |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 175 | CRQB_IOID_SHIFT = 6, /* CRQB Gen-II/IIE IO Id shift */ |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 176 | CRQB_PMP_SHIFT = 12, /* CRQB Gen-II/IIE PMP shift */ |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 177 | CRQB_HOSTQ_SHIFT = 17, /* CRQB Gen-II/IIE HostQueTag shift */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 178 | CRQB_CMD_ADDR_SHIFT = 8, |
| 179 | CRQB_CMD_CS = (0x2 << 11), |
| 180 | CRQB_CMD_LAST = (1 << 15), |
| 181 | |
| 182 | CRPB_FLAG_STATUS_SHIFT = 8, |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 183 | CRPB_IOID_SHIFT_6 = 5, /* CRPB Gen-II IO Id shift */ |
| 184 | CRPB_IOID_SHIFT_7 = 7, /* CRPB Gen-IIE IO Id shift */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 185 | |
| 186 | EPRD_FLAG_END_OF_TBL = (1 << 31), |
| 187 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 188 | /* PCI interface registers */ |
| 189 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 190 | MV_PCI_COMMAND = 0xc00, |
| 191 | MV_PCI_COMMAND_MWRCOM = (1 << 4), /* PCI Master Write Combining */ |
| 192 | MV_PCI_COMMAND_MRDTRIG = (1 << 7), /* PCI Master Read Trigger */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 193 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 194 | PCI_MAIN_CMD_STS = 0xd30, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 195 | STOP_PCI_MASTER = (1 << 2), |
| 196 | PCI_MASTER_EMPTY = (1 << 3), |
| 197 | GLOB_SFT_RST = (1 << 4), |
| 198 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 199 | MV_PCI_MODE = 0xd00, |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 200 | MV_PCI_MODE_MASK = 0x30, |
| 201 | |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 202 | MV_PCI_EXP_ROM_BAR_CTL = 0xd2c, |
| 203 | MV_PCI_DISC_TIMER = 0xd04, |
| 204 | MV_PCI_MSI_TRIGGER = 0xc38, |
| 205 | MV_PCI_SERR_MASK = 0xc28, |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 206 | MV_PCI_XBAR_TMOUT = 0x1d04, |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 207 | MV_PCI_ERR_LOW_ADDRESS = 0x1d40, |
| 208 | MV_PCI_ERR_HIGH_ADDRESS = 0x1d44, |
| 209 | MV_PCI_ERR_ATTRIBUTE = 0x1d48, |
| 210 | MV_PCI_ERR_COMMAND = 0x1d50, |
| 211 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 212 | PCI_IRQ_CAUSE = 0x1d58, |
| 213 | PCI_IRQ_MASK = 0x1d5c, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 214 | PCI_UNMASK_ALL_IRQS = 0x7fffff, /* bits 22-0 */ |
| 215 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 216 | PCIE_IRQ_CAUSE = 0x1900, |
| 217 | PCIE_IRQ_MASK = 0x1910, |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 218 | PCIE_UNMASK_ALL_IRQS = 0x40a, /* assorted bits */ |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 219 | |
Mark Lord | 7368f91 | 2008-04-25 11:24:24 -0400 | [diff] [blame] | 220 | /* Host Controller Main Interrupt Cause/Mask registers (1 per-chip) */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 221 | PCI_HC_MAIN_IRQ_CAUSE = 0x1d60, |
| 222 | PCI_HC_MAIN_IRQ_MASK = 0x1d64, |
| 223 | SOC_HC_MAIN_IRQ_CAUSE = 0x20020, |
| 224 | SOC_HC_MAIN_IRQ_MASK = 0x20024, |
Mark Lord | 40f21b1 | 2009-03-10 18:51:04 -0400 | [diff] [blame] | 225 | ERR_IRQ = (1 << 0), /* shift by (2 * port #) */ |
| 226 | DONE_IRQ = (1 << 1), /* shift by (2 * port #) */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 227 | HC0_IRQ_PEND = 0x1ff, /* bits 0-8 = HC0's ports */ |
| 228 | HC_SHIFT = 9, /* bits 9-17 = HC1's ports */ |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 229 | DONE_IRQ_0_3 = 0x000000aa, /* DONE_IRQ ports 0,1,2,3 */ |
| 230 | DONE_IRQ_4_7 = (DONE_IRQ_0_3 << HC_SHIFT), /* 4,5,6,7 */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 231 | PCI_ERR = (1 << 18), |
Mark Lord | 40f21b1 | 2009-03-10 18:51:04 -0400 | [diff] [blame] | 232 | TRAN_COAL_LO_DONE = (1 << 19), /* transaction coalescing */ |
| 233 | TRAN_COAL_HI_DONE = (1 << 20), /* transaction coalescing */ |
| 234 | PORTS_0_3_COAL_DONE = (1 << 8), /* HC0 IRQ coalescing */ |
| 235 | PORTS_4_7_COAL_DONE = (1 << 17), /* HC1 IRQ coalescing */ |
| 236 | ALL_PORTS_COAL_DONE = (1 << 21), /* GEN_II(E) IRQ coalescing */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 237 | GPIO_INT = (1 << 22), |
| 238 | SELF_INT = (1 << 23), |
| 239 | TWSI_INT = (1 << 24), |
| 240 | HC_MAIN_RSVD = (0x7f << 25), /* bits 31-25 */ |
Jeff Garzik | fb621e2 | 2007-02-25 04:19:45 -0500 | [diff] [blame] | 241 | HC_MAIN_RSVD_5 = (0x1fff << 19), /* bits 31-19 */ |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 242 | HC_MAIN_RSVD_SOC = (0x3fffffb << 6), /* bits 31-9, 7-6 */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 243 | |
| 244 | /* SATAHC registers */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 245 | HC_CFG = 0x00, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 246 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 247 | HC_IRQ_CAUSE = 0x14, |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 248 | DMA_IRQ = (1 << 0), /* shift by port # */ |
| 249 | HC_COAL_IRQ = (1 << 4), /* IRQ coalescing */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 250 | DEV_IRQ = (1 << 8), /* shift by port # */ |
| 251 | |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 252 | /* |
| 253 | * Per-HC (Host-Controller) interrupt coalescing feature. |
| 254 | * This is present on all chip generations. |
| 255 | * |
| 256 | * Coalescing defers the interrupt until either the IO_THRESHOLD |
| 257 | * (count of completed I/Os) is met, or the TIME_THRESHOLD is met. |
| 258 | */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 259 | HC_IRQ_COAL_IO_THRESHOLD = 0x000c, |
| 260 | HC_IRQ_COAL_TIME_THRESHOLD = 0x0010, |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 261 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 262 | SOC_LED_CTRL = 0x2c, |
Mark Lord | 000b344 | 2009-03-15 11:33:19 -0400 | [diff] [blame] | 263 | SOC_LED_CTRL_BLINK = (1 << 0), /* Active LED blink */ |
| 264 | SOC_LED_CTRL_ACT_PRESENCE = (1 << 2), /* Multiplex dev presence */ |
| 265 | /* with dev activity LED */ |
| 266 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 267 | /* Shadow block registers */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 268 | SHD_BLK = 0x100, |
| 269 | SHD_CTL_AST = 0x20, /* ofs from SHD_BLK */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 270 | |
| 271 | /* SATA registers */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 272 | SATA_STATUS = 0x300, /* ctrl, err regs follow status */ |
| 273 | SATA_ACTIVE = 0x350, |
| 274 | FIS_IRQ_CAUSE = 0x364, |
| 275 | FIS_IRQ_CAUSE_AN = (1 << 9), /* async notification */ |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 276 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 277 | LTMODE = 0x30c, /* requires read-after-write */ |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 278 | LTMODE_BIT8 = (1 << 8), /* unknown, but necessary */ |
| 279 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 280 | PHY_MODE2 = 0x330, |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 281 | PHY_MODE3 = 0x310, |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 282 | |
| 283 | PHY_MODE4 = 0x314, /* requires read-after-write */ |
Mark Lord | ba069e3 | 2008-05-31 16:46:34 -0400 | [diff] [blame] | 284 | PHY_MODE4_CFG_MASK = 0x00000003, /* phy internal config field */ |
| 285 | PHY_MODE4_CFG_VALUE = 0x00000001, /* phy internal config field */ |
| 286 | PHY_MODE4_RSVD_ZEROS = 0x5de3fffa, /* Gen2e always write zeros */ |
| 287 | PHY_MODE4_RSVD_ONES = 0x00000005, /* Gen2e always write ones */ |
| 288 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 289 | SATA_IFCTL = 0x344, |
| 290 | SATA_TESTCTL = 0x348, |
| 291 | SATA_IFSTAT = 0x34c, |
| 292 | VENDOR_UNIQUE_FIS = 0x35c, |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 293 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 294 | FISCFG = 0x360, |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 295 | FISCFG_WAIT_DEV_ERR = (1 << 8), /* wait for host on DevErr */ |
| 296 | FISCFG_SINGLE_SYNC = (1 << 16), /* SYNC on DMA activation */ |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 297 | |
Martin Michlmayr | 29b7e43 | 2009-05-04 20:58:50 +0200 | [diff] [blame] | 298 | PHY_MODE9_GEN2 = 0x398, |
| 299 | PHY_MODE9_GEN1 = 0x39c, |
| 300 | PHYCFG_OFS = 0x3a0, /* only in 65n devices */ |
| 301 | |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 302 | MV5_PHY_MODE = 0x74, |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 303 | MV5_LTMODE = 0x30, |
| 304 | MV5_PHY_CTL = 0x0C, |
| 305 | SATA_IFCFG = 0x050, |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 306 | |
| 307 | MV_M2_PREAMP_MASK = 0x7e0, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 308 | |
| 309 | /* Port registers */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 310 | EDMA_CFG = 0, |
Mark Lord | 0c58912 | 2008-01-26 18:31:16 -0500 | [diff] [blame] | 311 | EDMA_CFG_Q_DEPTH = 0x1f, /* max device queue depth */ |
| 312 | EDMA_CFG_NCQ = (1 << 5), /* for R/W FPDMA queued */ |
| 313 | EDMA_CFG_NCQ_GO_ON_ERR = (1 << 14), /* continue on error */ |
| 314 | EDMA_CFG_RD_BRST_EXT = (1 << 11), /* read burst 512B */ |
| 315 | EDMA_CFG_WR_BUFF_LEN = (1 << 13), /* write buffer 512B */ |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 316 | EDMA_CFG_EDMA_FBS = (1 << 16), /* EDMA FIS-Based Switching */ |
| 317 | EDMA_CFG_FBS = (1 << 26), /* FIS-Based Switching */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 318 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 319 | EDMA_ERR_IRQ_CAUSE = 0x8, |
| 320 | EDMA_ERR_IRQ_MASK = 0xc, |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 321 | EDMA_ERR_D_PAR = (1 << 0), /* UDMA data parity err */ |
| 322 | EDMA_ERR_PRD_PAR = (1 << 1), /* UDMA PRD parity err */ |
| 323 | EDMA_ERR_DEV = (1 << 2), /* device error */ |
| 324 | EDMA_ERR_DEV_DCON = (1 << 3), /* device disconnect */ |
| 325 | EDMA_ERR_DEV_CON = (1 << 4), /* device connected */ |
| 326 | EDMA_ERR_SERR = (1 << 5), /* SError bits [WBDST] raised */ |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 327 | EDMA_ERR_SELF_DIS = (1 << 7), /* Gen II/IIE self-disable */ |
| 328 | EDMA_ERR_SELF_DIS_5 = (1 << 8), /* Gen I self-disable */ |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 329 | EDMA_ERR_BIST_ASYNC = (1 << 8), /* BIST FIS or Async Notify */ |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 330 | EDMA_ERR_TRANS_IRQ_7 = (1 << 8), /* Gen IIE transprt layer irq */ |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 331 | EDMA_ERR_CRQB_PAR = (1 << 9), /* CRQB parity error */ |
| 332 | EDMA_ERR_CRPB_PAR = (1 << 10), /* CRPB parity error */ |
| 333 | EDMA_ERR_INTRL_PAR = (1 << 11), /* internal parity error */ |
| 334 | EDMA_ERR_IORDY = (1 << 12), /* IORdy timeout */ |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 335 | |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 336 | EDMA_ERR_LNK_CTRL_RX = (0xf << 13), /* link ctrl rx error */ |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 337 | EDMA_ERR_LNK_CTRL_RX_0 = (1 << 13), /* transient: CRC err */ |
| 338 | EDMA_ERR_LNK_CTRL_RX_1 = (1 << 14), /* transient: FIFO err */ |
| 339 | EDMA_ERR_LNK_CTRL_RX_2 = (1 << 15), /* fatal: caught SYNC */ |
| 340 | EDMA_ERR_LNK_CTRL_RX_3 = (1 << 16), /* transient: FIS rx err */ |
| 341 | |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 342 | EDMA_ERR_LNK_DATA_RX = (0xf << 17), /* link data rx error */ |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 343 | |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 344 | EDMA_ERR_LNK_CTRL_TX = (0x1f << 21), /* link ctrl tx error */ |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 345 | EDMA_ERR_LNK_CTRL_TX_0 = (1 << 21), /* transient: CRC err */ |
| 346 | EDMA_ERR_LNK_CTRL_TX_1 = (1 << 22), /* transient: FIFO err */ |
| 347 | EDMA_ERR_LNK_CTRL_TX_2 = (1 << 23), /* transient: caught SYNC */ |
| 348 | EDMA_ERR_LNK_CTRL_TX_3 = (1 << 24), /* transient: caught DMAT */ |
| 349 | EDMA_ERR_LNK_CTRL_TX_4 = (1 << 25), /* transient: FIS collision */ |
| 350 | |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 351 | EDMA_ERR_LNK_DATA_TX = (0x1f << 26), /* link data tx error */ |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 352 | |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 353 | EDMA_ERR_TRANS_PROTO = (1 << 31), /* transport protocol error */ |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 354 | EDMA_ERR_OVERRUN_5 = (1 << 5), |
| 355 | EDMA_ERR_UNDERRUN_5 = (1 << 6), |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 356 | |
| 357 | EDMA_ERR_IRQ_TRANSIENT = EDMA_ERR_LNK_CTRL_RX_0 | |
| 358 | EDMA_ERR_LNK_CTRL_RX_1 | |
| 359 | EDMA_ERR_LNK_CTRL_RX_3 | |
Mark Lord | 85afb93 | 2008-04-19 14:54:41 -0400 | [diff] [blame] | 360 | EDMA_ERR_LNK_CTRL_TX, |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 361 | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 362 | EDMA_EH_FREEZE = EDMA_ERR_D_PAR | |
| 363 | EDMA_ERR_PRD_PAR | |
| 364 | EDMA_ERR_DEV_DCON | |
| 365 | EDMA_ERR_DEV_CON | |
| 366 | EDMA_ERR_SERR | |
| 367 | EDMA_ERR_SELF_DIS | |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 368 | EDMA_ERR_CRQB_PAR | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 369 | EDMA_ERR_CRPB_PAR | |
| 370 | EDMA_ERR_INTRL_PAR | |
| 371 | EDMA_ERR_IORDY | |
| 372 | EDMA_ERR_LNK_CTRL_RX_2 | |
| 373 | EDMA_ERR_LNK_DATA_RX | |
| 374 | EDMA_ERR_LNK_DATA_TX | |
| 375 | EDMA_ERR_TRANS_PROTO, |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 376 | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 377 | EDMA_EH_FREEZE_5 = EDMA_ERR_D_PAR | |
| 378 | EDMA_ERR_PRD_PAR | |
| 379 | EDMA_ERR_DEV_DCON | |
| 380 | EDMA_ERR_DEV_CON | |
| 381 | EDMA_ERR_OVERRUN_5 | |
| 382 | EDMA_ERR_UNDERRUN_5 | |
| 383 | EDMA_ERR_SELF_DIS_5 | |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 384 | EDMA_ERR_CRQB_PAR | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 385 | EDMA_ERR_CRPB_PAR | |
| 386 | EDMA_ERR_INTRL_PAR | |
| 387 | EDMA_ERR_IORDY, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 388 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 389 | EDMA_REQ_Q_BASE_HI = 0x10, |
| 390 | EDMA_REQ_Q_IN_PTR = 0x14, /* also contains BASE_LO */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 391 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 392 | EDMA_REQ_Q_OUT_PTR = 0x18, |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 393 | EDMA_REQ_Q_PTR_SHIFT = 5, |
| 394 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 395 | EDMA_RSP_Q_BASE_HI = 0x1c, |
| 396 | EDMA_RSP_Q_IN_PTR = 0x20, |
| 397 | EDMA_RSP_Q_OUT_PTR = 0x24, /* also contains BASE_LO */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 398 | EDMA_RSP_Q_PTR_SHIFT = 3, |
| 399 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 400 | EDMA_CMD = 0x28, /* EDMA command register */ |
Jeff Garzik | 0ea9e17 | 2007-07-13 17:06:45 -0400 | [diff] [blame] | 401 | EDMA_EN = (1 << 0), /* enable EDMA */ |
| 402 | EDMA_DS = (1 << 1), /* disable EDMA; self-negated */ |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 403 | EDMA_RESET = (1 << 2), /* reset eng/trans/link/phy */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 404 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 405 | EDMA_STATUS = 0x30, /* EDMA engine status */ |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 406 | EDMA_STATUS_CACHE_EMPTY = (1 << 6), /* GenIIe command cache empty */ |
| 407 | EDMA_STATUS_IDLE = (1 << 7), /* GenIIe EDMA enabled/idle */ |
| 408 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 409 | EDMA_IORDY_TMOUT = 0x34, |
| 410 | EDMA_ARB_CFG = 0x38, |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 411 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 412 | EDMA_HALTCOND = 0x60, /* GenIIe halt conditions */ |
| 413 | EDMA_UNKNOWN_RSVD = 0x6C, /* GenIIe unknown/reserved */ |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 414 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 415 | BMDMA_CMD = 0x224, /* bmdma command register */ |
| 416 | BMDMA_STATUS = 0x228, /* bmdma status register */ |
| 417 | BMDMA_PRD_LOW = 0x22c, /* bmdma PRD addr 31:0 */ |
| 418 | BMDMA_PRD_HIGH = 0x230, /* bmdma PRD addr 63:32 */ |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 419 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 420 | /* Host private flags (hp_flags) */ |
| 421 | MV_HP_FLAG_MSI = (1 << 0), |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 422 | MV_HP_ERRATA_50XXB0 = (1 << 1), |
| 423 | MV_HP_ERRATA_50XXB2 = (1 << 2), |
| 424 | MV_HP_ERRATA_60X1B2 = (1 << 3), |
| 425 | MV_HP_ERRATA_60X1C0 = (1 << 4), |
Jeff Garzik | 0ea9e17 | 2007-07-13 17:06:45 -0400 | [diff] [blame] | 426 | MV_HP_GEN_I = (1 << 6), /* Generation I: 50xx */ |
| 427 | MV_HP_GEN_II = (1 << 7), /* Generation II: 60xx */ |
| 428 | MV_HP_GEN_IIE = (1 << 8), /* Generation IIE: 6042/7042 */ |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 429 | MV_HP_PCIE = (1 << 9), /* PCIe bus/regs: 7042 */ |
Mark Lord | 616d4a9 | 2008-05-02 02:08:32 -0400 | [diff] [blame] | 430 | MV_HP_CUT_THROUGH = (1 << 10), /* can use EDMA cut-through */ |
Mark Lord | 1f39847 | 2008-05-27 17:54:48 -0400 | [diff] [blame] | 431 | MV_HP_FLAG_SOC = (1 << 11), /* SystemOnChip, no PCI */ |
Mark Lord | 000b344 | 2009-03-15 11:33:19 -0400 | [diff] [blame] | 432 | MV_HP_QUIRK_LED_BLINK_EN = (1 << 12), /* is led blinking enabled? */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 433 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 434 | /* Port private flags (pp_flags) */ |
Jeff Garzik | 0ea9e17 | 2007-07-13 17:06:45 -0400 | [diff] [blame] | 435 | MV_PP_FLAG_EDMA_EN = (1 << 0), /* is EDMA engine enabled? */ |
Mark Lord | 7210916 | 2008-01-26 18:31:33 -0500 | [diff] [blame] | 436 | MV_PP_FLAG_NCQ_EN = (1 << 1), /* is EDMA set up for NCQ? */ |
Mark Lord | 00f42ea | 2008-05-02 02:11:45 -0400 | [diff] [blame] | 437 | MV_PP_FLAG_FBS_EN = (1 << 2), /* is EDMA set up for FBS? */ |
Mark Lord | 29d187b | 2008-05-02 02:15:37 -0400 | [diff] [blame] | 438 | MV_PP_FLAG_DELAYED_EH = (1 << 3), /* delayed dev err handling */ |
Mark Lord | d16ab3f | 2009-02-25 15:17:43 -0500 | [diff] [blame] | 439 | MV_PP_FLAG_FAKE_ATA_BUSY = (1 << 4), /* ignore initial ATA_DRDY */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 440 | }; |
| 441 | |
Jeff Garzik | ee9ccdf | 2007-07-12 15:51:22 -0400 | [diff] [blame] | 442 | #define IS_GEN_I(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_I) |
| 443 | #define IS_GEN_II(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_II) |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 444 | #define IS_GEN_IIE(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_IIE) |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 445 | #define IS_PCIE(hpriv) ((hpriv)->hp_flags & MV_HP_PCIE) |
Mark Lord | 1f39847 | 2008-05-27 17:54:48 -0400 | [diff] [blame] | 446 | #define IS_SOC(hpriv) ((hpriv)->hp_flags & MV_HP_FLAG_SOC) |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 447 | |
Lennert Buytenhek | 15a3263 | 2008-03-27 14:51:39 -0400 | [diff] [blame] | 448 | #define WINDOW_CTRL(i) (0x20030 + ((i) << 4)) |
| 449 | #define WINDOW_BASE(i) (0x20034 + ((i) << 4)) |
| 450 | |
Jeff Garzik | 095fec8 | 2005-11-12 09:50:49 -0500 | [diff] [blame] | 451 | enum { |
Jeff Garzik | baf14aa | 2007-10-09 13:51:57 -0400 | [diff] [blame] | 452 | /* DMA boundary 0xffff is required by the s/g splitting |
| 453 | * we need on /length/ in mv_fill-sg(). |
| 454 | */ |
| 455 | MV_DMA_BOUNDARY = 0xffffU, |
Jeff Garzik | 095fec8 | 2005-11-12 09:50:49 -0500 | [diff] [blame] | 456 | |
Jeff Garzik | 0ea9e17 | 2007-07-13 17:06:45 -0400 | [diff] [blame] | 457 | /* mask of register bits containing lower 32 bits |
| 458 | * of EDMA request queue DMA address |
| 459 | */ |
Jeff Garzik | 095fec8 | 2005-11-12 09:50:49 -0500 | [diff] [blame] | 460 | EDMA_REQ_Q_BASE_LO_MASK = 0xfffffc00U, |
| 461 | |
Jeff Garzik | 0ea9e17 | 2007-07-13 17:06:45 -0400 | [diff] [blame] | 462 | /* ditto, for response queue */ |
Jeff Garzik | 095fec8 | 2005-11-12 09:50:49 -0500 | [diff] [blame] | 463 | EDMA_RSP_Q_BASE_LO_MASK = 0xffffff00U, |
| 464 | }; |
| 465 | |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 466 | enum chip_type { |
| 467 | chip_504x, |
| 468 | chip_508x, |
| 469 | chip_5080, |
| 470 | chip_604x, |
| 471 | chip_608x, |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 472 | chip_6042, |
| 473 | chip_7042, |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 474 | chip_soc, |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 475 | }; |
| 476 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 477 | /* Command ReQuest Block: 32B */ |
| 478 | struct mv_crqb { |
Mark Lord | e146987 | 2006-05-22 19:02:03 -0400 | [diff] [blame] | 479 | __le32 sg_addr; |
| 480 | __le32 sg_addr_hi; |
| 481 | __le16 ctrl_flags; |
| 482 | __le16 ata_cmd[11]; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 483 | }; |
| 484 | |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 485 | struct mv_crqb_iie { |
Mark Lord | e146987 | 2006-05-22 19:02:03 -0400 | [diff] [blame] | 486 | __le32 addr; |
| 487 | __le32 addr_hi; |
| 488 | __le32 flags; |
| 489 | __le32 len; |
| 490 | __le32 ata_cmd[4]; |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 491 | }; |
| 492 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 493 | /* Command ResPonse Block: 8B */ |
| 494 | struct mv_crpb { |
Mark Lord | e146987 | 2006-05-22 19:02:03 -0400 | [diff] [blame] | 495 | __le16 id; |
| 496 | __le16 flags; |
| 497 | __le32 tmstmp; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 498 | }; |
| 499 | |
| 500 | /* EDMA Physical Region Descriptor (ePRD); A.K.A. SG */ |
| 501 | struct mv_sg { |
Mark Lord | e146987 | 2006-05-22 19:02:03 -0400 | [diff] [blame] | 502 | __le32 addr; |
| 503 | __le32 flags_size; |
| 504 | __le32 addr_hi; |
| 505 | __le32 reserved; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 506 | }; |
| 507 | |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 508 | /* |
| 509 | * We keep a local cache of a few frequently accessed port |
| 510 | * registers here, to avoid having to read them (very slow) |
| 511 | * when switching between EDMA and non-EDMA modes. |
| 512 | */ |
| 513 | struct mv_cached_regs { |
| 514 | u32 fiscfg; |
| 515 | u32 ltmode; |
| 516 | u32 haltcond; |
Mark Lord | c01e8a2 | 2009-02-25 15:14:48 -0500 | [diff] [blame] | 517 | u32 unknown_rsvd; |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 518 | }; |
| 519 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 520 | struct mv_port_priv { |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 521 | struct mv_crqb *crqb; |
| 522 | dma_addr_t crqb_dma; |
| 523 | struct mv_crpb *crpb; |
| 524 | dma_addr_t crpb_dma; |
Mark Lord | eb73d55 | 2008-01-29 13:24:00 -0500 | [diff] [blame] | 525 | struct mv_sg *sg_tbl[MV_MAX_Q_DEPTH]; |
| 526 | dma_addr_t sg_tbl_dma[MV_MAX_Q_DEPTH]; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 527 | |
| 528 | unsigned int req_idx; |
| 529 | unsigned int resp_idx; |
| 530 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 531 | u32 pp_flags; |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 532 | struct mv_cached_regs cached; |
Mark Lord | 29d187b | 2008-05-02 02:15:37 -0400 | [diff] [blame] | 533 | unsigned int delayed_eh_pmp_map; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 534 | }; |
| 535 | |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 536 | struct mv_port_signal { |
| 537 | u32 amps; |
| 538 | u32 pre; |
| 539 | }; |
| 540 | |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 541 | struct mv_host_priv { |
| 542 | u32 hp_flags; |
Saeed Bishara | 1bfeff0 | 2009-12-17 01:05:00 -0500 | [diff] [blame] | 543 | unsigned int board_idx; |
Mark Lord | 96e2c487 | 2008-05-17 13:38:00 -0400 | [diff] [blame] | 544 | u32 main_irq_mask; |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 545 | struct mv_port_signal signal[8]; |
| 546 | const struct mv_hw_ops *ops; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 547 | int n_ports; |
| 548 | void __iomem *base; |
Mark Lord | 7368f91 | 2008-04-25 11:24:24 -0400 | [diff] [blame] | 549 | void __iomem *main_irq_cause_addr; |
| 550 | void __iomem *main_irq_mask_addr; |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 551 | u32 irq_cause_offset; |
| 552 | u32 irq_mask_offset; |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 553 | u32 unmask_all_irqs; |
Saeed Bishara | c77a2f4 | 2009-12-06 18:26:18 +0200 | [diff] [blame] | 554 | |
| 555 | #if defined(CONFIG_HAVE_CLK) |
| 556 | struct clk *clk; |
| 557 | #endif |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 558 | /* |
| 559 | * These consistent DMA memory pools give us guaranteed |
| 560 | * alignment for hardware-accessed data structures, |
| 561 | * and less memory waste in accomplishing the alignment. |
| 562 | */ |
| 563 | struct dma_pool *crqb_pool; |
| 564 | struct dma_pool *crpb_pool; |
| 565 | struct dma_pool *sg_tbl_pool; |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 566 | }; |
| 567 | |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 568 | struct mv_hw_ops { |
Jeff Garzik | 2a47ce0 | 2005-11-12 23:05:14 -0500 | [diff] [blame] | 569 | void (*phy_errata)(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 570 | unsigned int port); |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 571 | void (*enable_leds)(struct mv_host_priv *hpriv, void __iomem *mmio); |
| 572 | void (*read_preamp)(struct mv_host_priv *hpriv, int idx, |
| 573 | void __iomem *mmio); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 574 | int (*reset_hc)(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 575 | unsigned int n_hc); |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 576 | void (*reset_flash)(struct mv_host_priv *hpriv, void __iomem *mmio); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 577 | void (*reset_bus)(struct ata_host *host, void __iomem *mmio); |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 578 | }; |
| 579 | |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 580 | static int mv_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val); |
| 581 | static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val); |
| 582 | static int mv5_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val); |
| 583 | static int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 584 | static int mv_port_start(struct ata_port *ap); |
| 585 | static void mv_port_stop(struct ata_port *ap); |
Mark Lord | 3e4a139 | 2008-05-02 02:10:02 -0400 | [diff] [blame] | 586 | static int mv_qc_defer(struct ata_queued_cmd *qc); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 587 | static void mv_qc_prep(struct ata_queued_cmd *qc); |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 588 | static void mv_qc_prep_iie(struct ata_queued_cmd *qc); |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 589 | static unsigned int mv_qc_issue(struct ata_queued_cmd *qc); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 590 | static int mv_hardreset(struct ata_link *link, unsigned int *class, |
| 591 | unsigned long deadline); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 592 | static void mv_eh_freeze(struct ata_port *ap); |
| 593 | static void mv_eh_thaw(struct ata_port *ap); |
Mark Lord | f273827 | 2008-01-26 18:32:29 -0500 | [diff] [blame] | 594 | static void mv6_dev_config(struct ata_device *dev); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 595 | |
Jeff Garzik | 2a47ce0 | 2005-11-12 23:05:14 -0500 | [diff] [blame] | 596 | static void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 597 | unsigned int port); |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 598 | static void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio); |
| 599 | static void mv5_read_preamp(struct mv_host_priv *hpriv, int idx, |
| 600 | void __iomem *mmio); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 601 | static int mv5_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 602 | unsigned int n_hc); |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 603 | static void mv5_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 604 | static void mv5_reset_bus(struct ata_host *host, void __iomem *mmio); |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 605 | |
Jeff Garzik | 2a47ce0 | 2005-11-12 23:05:14 -0500 | [diff] [blame] | 606 | static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 607 | unsigned int port); |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 608 | static void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio); |
| 609 | static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx, |
| 610 | void __iomem *mmio); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 611 | static int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 612 | unsigned int n_hc); |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 613 | static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio); |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 614 | static void mv_soc_enable_leds(struct mv_host_priv *hpriv, |
| 615 | void __iomem *mmio); |
| 616 | static void mv_soc_read_preamp(struct mv_host_priv *hpriv, int idx, |
| 617 | void __iomem *mmio); |
| 618 | static int mv_soc_reset_hc(struct mv_host_priv *hpriv, |
| 619 | void __iomem *mmio, unsigned int n_hc); |
| 620 | static void mv_soc_reset_flash(struct mv_host_priv *hpriv, |
| 621 | void __iomem *mmio); |
| 622 | static void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio); |
Martin Michlmayr | 29b7e43 | 2009-05-04 20:58:50 +0200 | [diff] [blame] | 623 | static void mv_soc_65n_phy_errata(struct mv_host_priv *hpriv, |
| 624 | void __iomem *mmio, unsigned int port); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 625 | static void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio); |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 626 | static void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 627 | unsigned int port_no); |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 628 | static int mv_stop_edma(struct ata_port *ap); |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 629 | static int mv_stop_edma_engine(void __iomem *port_mmio); |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 630 | static void mv_edma_cfg(struct ata_port *ap, int want_ncq, int want_edma); |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 631 | |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 632 | static void mv_pmp_select(struct ata_port *ap, int pmp); |
| 633 | static int mv_pmp_hardreset(struct ata_link *link, unsigned int *class, |
| 634 | unsigned long deadline); |
| 635 | static int mv_softreset(struct ata_link *link, unsigned int *class, |
| 636 | unsigned long deadline); |
Mark Lord | 29d187b | 2008-05-02 02:15:37 -0400 | [diff] [blame] | 637 | static void mv_pmp_error_handler(struct ata_port *ap); |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 638 | static void mv_process_crpb_entries(struct ata_port *ap, |
| 639 | struct mv_port_priv *pp); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 640 | |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 641 | static void mv_sff_irq_clear(struct ata_port *ap); |
| 642 | static int mv_check_atapi_dma(struct ata_queued_cmd *qc); |
| 643 | static void mv_bmdma_setup(struct ata_queued_cmd *qc); |
| 644 | static void mv_bmdma_start(struct ata_queued_cmd *qc); |
| 645 | static void mv_bmdma_stop(struct ata_queued_cmd *qc); |
| 646 | static u8 mv_bmdma_status(struct ata_port *ap); |
Mark Lord | d16ab3f | 2009-02-25 15:17:43 -0500 | [diff] [blame] | 647 | static u8 mv_sff_check_status(struct ata_port *ap); |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 648 | |
Mark Lord | eb73d55 | 2008-01-29 13:24:00 -0500 | [diff] [blame] | 649 | /* .sg_tablesize is (MV_MAX_SG_CT / 2) in the structures below |
| 650 | * because we have to allow room for worst case splitting of |
| 651 | * PRDs for 64K boundaries in mv_fill_sg(). |
| 652 | */ |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 653 | static struct scsi_host_template mv5_sht = { |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 654 | ATA_BASE_SHT(DRV_NAME), |
Jeff Garzik | baf14aa | 2007-10-09 13:51:57 -0400 | [diff] [blame] | 655 | .sg_tablesize = MV_MAX_SG_CT / 2, |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 656 | .dma_boundary = MV_DMA_BOUNDARY, |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 657 | }; |
| 658 | |
| 659 | static struct scsi_host_template mv6_sht = { |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 660 | ATA_NCQ_SHT(DRV_NAME), |
Mark Lord | 138bfdd | 2008-01-26 18:33:18 -0500 | [diff] [blame] | 661 | .can_queue = MV_MAX_Q_DEPTH - 1, |
Jeff Garzik | baf14aa | 2007-10-09 13:51:57 -0400 | [diff] [blame] | 662 | .sg_tablesize = MV_MAX_SG_CT / 2, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 663 | .dma_boundary = MV_DMA_BOUNDARY, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 664 | }; |
| 665 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 666 | static struct ata_port_operations mv5_ops = { |
| 667 | .inherits = &ata_sff_port_ops, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 668 | |
Alan Cox | c96f173 | 2009-03-24 10:23:46 +0000 | [diff] [blame] | 669 | .lost_interrupt = ATA_OP_NULL, |
| 670 | |
Mark Lord | 3e4a139 | 2008-05-02 02:10:02 -0400 | [diff] [blame] | 671 | .qc_defer = mv_qc_defer, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 672 | .qc_prep = mv_qc_prep, |
| 673 | .qc_issue = mv_qc_issue, |
| 674 | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 675 | .freeze = mv_eh_freeze, |
| 676 | .thaw = mv_eh_thaw, |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 677 | .hardreset = mv_hardreset, |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 678 | .error_handler = ata_std_error_handler, /* avoid SFF EH */ |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 679 | .post_internal_cmd = ATA_OP_NULL, |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 680 | |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 681 | .scr_read = mv5_scr_read, |
| 682 | .scr_write = mv5_scr_write, |
| 683 | |
| 684 | .port_start = mv_port_start, |
| 685 | .port_stop = mv_port_stop, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 686 | }; |
| 687 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 688 | static struct ata_port_operations mv6_ops = { |
Tejun Heo | 8930ff2 | 2010-05-10 21:41:33 +0200 | [diff] [blame] | 689 | .inherits = &ata_bmdma_port_ops, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 690 | |
Tejun Heo | 8930ff2 | 2010-05-10 21:41:33 +0200 | [diff] [blame] | 691 | .lost_interrupt = ATA_OP_NULL, |
| 692 | |
| 693 | .qc_defer = mv_qc_defer, |
| 694 | .qc_prep = mv_qc_prep, |
| 695 | .qc_issue = mv_qc_issue, |
| 696 | |
| 697 | .dev_config = mv6_dev_config, |
| 698 | |
| 699 | .freeze = mv_eh_freeze, |
| 700 | .thaw = mv_eh_thaw, |
| 701 | .hardreset = mv_hardreset, |
| 702 | .softreset = mv_softreset, |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 703 | .pmp_hardreset = mv_pmp_hardreset, |
| 704 | .pmp_softreset = mv_softreset, |
Mark Lord | 29d187b | 2008-05-02 02:15:37 -0400 | [diff] [blame] | 705 | .error_handler = mv_pmp_error_handler, |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 706 | |
Tejun Heo | 8930ff2 | 2010-05-10 21:41:33 +0200 | [diff] [blame] | 707 | .scr_read = mv_scr_read, |
| 708 | .scr_write = mv_scr_write, |
| 709 | |
Mark Lord | 40f21b1 | 2009-03-10 18:51:04 -0400 | [diff] [blame] | 710 | .sff_check_status = mv_sff_check_status, |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 711 | .sff_irq_clear = mv_sff_irq_clear, |
| 712 | .check_atapi_dma = mv_check_atapi_dma, |
| 713 | .bmdma_setup = mv_bmdma_setup, |
| 714 | .bmdma_start = mv_bmdma_start, |
| 715 | .bmdma_stop = mv_bmdma_stop, |
| 716 | .bmdma_status = mv_bmdma_status, |
Tejun Heo | 8930ff2 | 2010-05-10 21:41:33 +0200 | [diff] [blame] | 717 | |
| 718 | .port_start = mv_port_start, |
| 719 | .port_stop = mv_port_stop, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 720 | }; |
| 721 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 722 | static struct ata_port_operations mv_iie_ops = { |
| 723 | .inherits = &mv6_ops, |
| 724 | .dev_config = ATA_OP_NULL, |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 725 | .qc_prep = mv_qc_prep_iie, |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 726 | }; |
| 727 | |
Arjan van de Ven | 98ac62d | 2005-11-28 10:06:23 +0100 | [diff] [blame] | 728 | static const struct ata_port_info mv_port_info[] = { |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 729 | { /* chip_504x */ |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 730 | .flags = MV_GEN_I_FLAGS, |
Mark Lord | c361acb | 2009-04-06 15:22:21 -0400 | [diff] [blame] | 731 | .pio_mask = ATA_PIO4, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 732 | .udma_mask = ATA_UDMA6, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 733 | .port_ops = &mv5_ops, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 734 | }, |
| 735 | { /* chip_508x */ |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 736 | .flags = MV_GEN_I_FLAGS | MV_FLAG_DUAL_HC, |
Mark Lord | c361acb | 2009-04-06 15:22:21 -0400 | [diff] [blame] | 737 | .pio_mask = ATA_PIO4, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 738 | .udma_mask = ATA_UDMA6, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 739 | .port_ops = &mv5_ops, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 740 | }, |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 741 | { /* chip_5080 */ |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 742 | .flags = MV_GEN_I_FLAGS | MV_FLAG_DUAL_HC, |
Mark Lord | c361acb | 2009-04-06 15:22:21 -0400 | [diff] [blame] | 743 | .pio_mask = ATA_PIO4, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 744 | .udma_mask = ATA_UDMA6, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 745 | .port_ops = &mv5_ops, |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 746 | }, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 747 | { /* chip_604x */ |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 748 | .flags = MV_GEN_II_FLAGS, |
Mark Lord | c361acb | 2009-04-06 15:22:21 -0400 | [diff] [blame] | 749 | .pio_mask = ATA_PIO4, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 750 | .udma_mask = ATA_UDMA6, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 751 | .port_ops = &mv6_ops, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 752 | }, |
| 753 | { /* chip_608x */ |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 754 | .flags = MV_GEN_II_FLAGS | MV_FLAG_DUAL_HC, |
Mark Lord | c361acb | 2009-04-06 15:22:21 -0400 | [diff] [blame] | 755 | .pio_mask = ATA_PIO4, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 756 | .udma_mask = ATA_UDMA6, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 757 | .port_ops = &mv6_ops, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 758 | }, |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 759 | { /* chip_6042 */ |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 760 | .flags = MV_GEN_IIE_FLAGS, |
Mark Lord | c361acb | 2009-04-06 15:22:21 -0400 | [diff] [blame] | 761 | .pio_mask = ATA_PIO4, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 762 | .udma_mask = ATA_UDMA6, |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 763 | .port_ops = &mv_iie_ops, |
| 764 | }, |
| 765 | { /* chip_7042 */ |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 766 | .flags = MV_GEN_IIE_FLAGS, |
Mark Lord | c361acb | 2009-04-06 15:22:21 -0400 | [diff] [blame] | 767 | .pio_mask = ATA_PIO4, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 768 | .udma_mask = ATA_UDMA6, |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 769 | .port_ops = &mv_iie_ops, |
| 770 | }, |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 771 | { /* chip_soc */ |
Mark Lord | 91b1a84 | 2009-01-30 18:46:39 -0500 | [diff] [blame] | 772 | .flags = MV_GEN_IIE_FLAGS, |
Mark Lord | c361acb | 2009-04-06 15:22:21 -0400 | [diff] [blame] | 773 | .pio_mask = ATA_PIO4, |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 774 | .udma_mask = ATA_UDMA6, |
| 775 | .port_ops = &mv_iie_ops, |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 776 | }, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 777 | }; |
| 778 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 779 | static const struct pci_device_id mv_pci_tbl[] = { |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 780 | { PCI_VDEVICE(MARVELL, 0x5040), chip_504x }, |
| 781 | { PCI_VDEVICE(MARVELL, 0x5041), chip_504x }, |
| 782 | { PCI_VDEVICE(MARVELL, 0x5080), chip_5080 }, |
| 783 | { PCI_VDEVICE(MARVELL, 0x5081), chip_508x }, |
Mark Lord | 46c5784 | 2008-09-04 18:21:07 -0400 | [diff] [blame] | 784 | /* RocketRAID 1720/174x have different identifiers */ |
| 785 | { PCI_VDEVICE(TTI, 0x1720), chip_6042 }, |
Mark Lord | 4462254 | 2009-01-27 16:33:13 -0500 | [diff] [blame] | 786 | { PCI_VDEVICE(TTI, 0x1740), chip_6042 }, |
| 787 | { PCI_VDEVICE(TTI, 0x1742), chip_6042 }, |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 788 | |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 789 | { PCI_VDEVICE(MARVELL, 0x6040), chip_604x }, |
| 790 | { PCI_VDEVICE(MARVELL, 0x6041), chip_604x }, |
| 791 | { PCI_VDEVICE(MARVELL, 0x6042), chip_6042 }, |
| 792 | { PCI_VDEVICE(MARVELL, 0x6080), chip_608x }, |
| 793 | { PCI_VDEVICE(MARVELL, 0x6081), chip_608x }, |
Jeff Garzik | 2917953 | 2005-11-11 08:08:03 -0500 | [diff] [blame] | 794 | |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 795 | { PCI_VDEVICE(ADAPTEC2, 0x0241), chip_604x }, |
| 796 | |
Florian Attenberger | d9f9c6b | 2007-07-02 17:09:29 +0200 | [diff] [blame] | 797 | /* Adaptec 1430SA */ |
| 798 | { PCI_VDEVICE(ADAPTEC2, 0x0243), chip_7042 }, |
| 799 | |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 800 | /* Marvell 7042 support */ |
Morrison, Tom | 6a3d586 | 2007-03-06 02:38:10 -0800 | [diff] [blame] | 801 | { PCI_VDEVICE(MARVELL, 0x7042), chip_7042 }, |
| 802 | |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 803 | /* Highpoint RocketRAID PCIe series */ |
| 804 | { PCI_VDEVICE(TTI, 0x2300), chip_7042 }, |
| 805 | { PCI_VDEVICE(TTI, 0x2310), chip_7042 }, |
| 806 | |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 807 | { } /* terminate list */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 808 | }; |
| 809 | |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 810 | static const struct mv_hw_ops mv5xxx_ops = { |
| 811 | .phy_errata = mv5_phy_errata, |
| 812 | .enable_leds = mv5_enable_leds, |
| 813 | .read_preamp = mv5_read_preamp, |
| 814 | .reset_hc = mv5_reset_hc, |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 815 | .reset_flash = mv5_reset_flash, |
| 816 | .reset_bus = mv5_reset_bus, |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 817 | }; |
| 818 | |
| 819 | static const struct mv_hw_ops mv6xxx_ops = { |
| 820 | .phy_errata = mv6_phy_errata, |
| 821 | .enable_leds = mv6_enable_leds, |
| 822 | .read_preamp = mv6_read_preamp, |
| 823 | .reset_hc = mv6_reset_hc, |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 824 | .reset_flash = mv6_reset_flash, |
| 825 | .reset_bus = mv_reset_pci_bus, |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 826 | }; |
| 827 | |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 828 | static const struct mv_hw_ops mv_soc_ops = { |
| 829 | .phy_errata = mv6_phy_errata, |
| 830 | .enable_leds = mv_soc_enable_leds, |
| 831 | .read_preamp = mv_soc_read_preamp, |
| 832 | .reset_hc = mv_soc_reset_hc, |
| 833 | .reset_flash = mv_soc_reset_flash, |
| 834 | .reset_bus = mv_soc_reset_bus, |
| 835 | }; |
| 836 | |
Martin Michlmayr | 29b7e43 | 2009-05-04 20:58:50 +0200 | [diff] [blame] | 837 | static const struct mv_hw_ops mv_soc_65n_ops = { |
| 838 | .phy_errata = mv_soc_65n_phy_errata, |
| 839 | .enable_leds = mv_soc_enable_leds, |
| 840 | .reset_hc = mv_soc_reset_hc, |
| 841 | .reset_flash = mv_soc_reset_flash, |
| 842 | .reset_bus = mv_soc_reset_bus, |
| 843 | }; |
| 844 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 845 | /* |
| 846 | * Functions |
| 847 | */ |
| 848 | |
| 849 | static inline void writelfl(unsigned long data, void __iomem *addr) |
| 850 | { |
| 851 | writel(data, addr); |
| 852 | (void) readl(addr); /* flush to avoid PCI posted write */ |
| 853 | } |
| 854 | |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 855 | static inline unsigned int mv_hc_from_port(unsigned int port) |
| 856 | { |
| 857 | return port >> MV_PORT_HC_SHIFT; |
| 858 | } |
| 859 | |
| 860 | static inline unsigned int mv_hardport_from_port(unsigned int port) |
| 861 | { |
| 862 | return port & MV_PORT_MASK; |
| 863 | } |
| 864 | |
Mark Lord | 1cfd19a | 2008-04-19 15:05:50 -0400 | [diff] [blame] | 865 | /* |
| 866 | * Consolidate some rather tricky bit shift calculations. |
| 867 | * This is hot-path stuff, so not a function. |
| 868 | * Simple code, with two return values, so macro rather than inline. |
| 869 | * |
| 870 | * port is the sole input, in range 0..7. |
Mark Lord | 7368f91 | 2008-04-25 11:24:24 -0400 | [diff] [blame] | 871 | * shift is one output, for use with main_irq_cause / main_irq_mask registers. |
| 872 | * hardport is the other output, in range 0..3. |
Mark Lord | 1cfd19a | 2008-04-19 15:05:50 -0400 | [diff] [blame] | 873 | * |
| 874 | * Note that port and hardport may be the same variable in some cases. |
| 875 | */ |
| 876 | #define MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport) \ |
| 877 | { \ |
| 878 | shift = mv_hc_from_port(port) * HC_SHIFT; \ |
| 879 | hardport = mv_hardport_from_port(port); \ |
| 880 | shift += hardport * 2; \ |
| 881 | } |
| 882 | |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 883 | static inline void __iomem *mv_hc_base(void __iomem *base, unsigned int hc) |
| 884 | { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 885 | return (base + SATAHC0_REG_BASE + (hc * MV_SATAHC_REG_SZ)); |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 886 | } |
| 887 | |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 888 | static inline void __iomem *mv_hc_base_from_port(void __iomem *base, |
| 889 | unsigned int port) |
| 890 | { |
| 891 | return mv_hc_base(base, mv_hc_from_port(port)); |
| 892 | } |
| 893 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 894 | static inline void __iomem *mv_port_base(void __iomem *base, unsigned int port) |
| 895 | { |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 896 | return mv_hc_base_from_port(base, port) + |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 897 | MV_SATAHC_ARBTR_REG_SZ + |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 898 | (mv_hardport_from_port(port) * MV_PORT_REG_SZ); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 899 | } |
| 900 | |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 901 | static void __iomem *mv5_phy_base(void __iomem *mmio, unsigned int port) |
| 902 | { |
| 903 | void __iomem *hc_mmio = mv_hc_base_from_port(mmio, port); |
| 904 | unsigned long ofs = (mv_hardport_from_port(port) + 1) * 0x100UL; |
| 905 | |
| 906 | return hc_mmio + ofs; |
| 907 | } |
| 908 | |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 909 | static inline void __iomem *mv_host_base(struct ata_host *host) |
| 910 | { |
| 911 | struct mv_host_priv *hpriv = host->private_data; |
| 912 | return hpriv->base; |
| 913 | } |
| 914 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 915 | static inline void __iomem *mv_ap_base(struct ata_port *ap) |
| 916 | { |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 917 | return mv_port_base(mv_host_base(ap->host), ap->port_no); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 918 | } |
| 919 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 920 | static inline int mv_get_hc_count(unsigned long port_flags) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 921 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 922 | return ((port_flags & MV_FLAG_DUAL_HC) ? 2 : 1); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 923 | } |
| 924 | |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 925 | /** |
| 926 | * mv_save_cached_regs - (re-)initialize cached port registers |
| 927 | * @ap: the port whose registers we are caching |
| 928 | * |
| 929 | * Initialize the local cache of port registers, |
| 930 | * so that reading them over and over again can |
| 931 | * be avoided on the hotter paths of this driver. |
| 932 | * This saves a few microseconds each time we switch |
| 933 | * to/from EDMA mode to perform (eg.) a drive cache flush. |
| 934 | */ |
| 935 | static void mv_save_cached_regs(struct ata_port *ap) |
| 936 | { |
| 937 | void __iomem *port_mmio = mv_ap_base(ap); |
| 938 | struct mv_port_priv *pp = ap->private_data; |
| 939 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 940 | pp->cached.fiscfg = readl(port_mmio + FISCFG); |
| 941 | pp->cached.ltmode = readl(port_mmio + LTMODE); |
| 942 | pp->cached.haltcond = readl(port_mmio + EDMA_HALTCOND); |
| 943 | pp->cached.unknown_rsvd = readl(port_mmio + EDMA_UNKNOWN_RSVD); |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 944 | } |
| 945 | |
| 946 | /** |
| 947 | * mv_write_cached_reg - write to a cached port register |
| 948 | * @addr: hardware address of the register |
| 949 | * @old: pointer to cached value of the register |
| 950 | * @new: new value for the register |
| 951 | * |
| 952 | * Write a new value to a cached register, |
| 953 | * but only if the value is different from before. |
| 954 | */ |
| 955 | static inline void mv_write_cached_reg(void __iomem *addr, u32 *old, u32 new) |
| 956 | { |
| 957 | if (new != *old) { |
Mark Lord | 12f3b6d | 2009-04-06 15:26:24 -0400 | [diff] [blame] | 958 | unsigned long laddr; |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 959 | *old = new; |
Mark Lord | 12f3b6d | 2009-04-06 15:26:24 -0400 | [diff] [blame] | 960 | /* |
| 961 | * Workaround for 88SX60x1-B2 FEr SATA#13: |
| 962 | * Read-after-write is needed to prevent generating 64-bit |
| 963 | * write cycles on the PCI bus for SATA interface registers |
| 964 | * at offsets ending in 0x4 or 0xc. |
| 965 | * |
| 966 | * Looks like a lot of fuss, but it avoids an unnecessary |
| 967 | * +1 usec read-after-write delay for unaffected registers. |
| 968 | */ |
| 969 | laddr = (long)addr & 0xffff; |
| 970 | if (laddr >= 0x300 && laddr <= 0x33c) { |
| 971 | laddr &= 0x000f; |
| 972 | if (laddr == 0x4 || laddr == 0xc) { |
| 973 | writelfl(new, addr); /* read after write */ |
| 974 | return; |
| 975 | } |
| 976 | } |
| 977 | writel(new, addr); /* unaffected by the errata */ |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 978 | } |
| 979 | } |
| 980 | |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 981 | static void mv_set_edma_ptrs(void __iomem *port_mmio, |
| 982 | struct mv_host_priv *hpriv, |
| 983 | struct mv_port_priv *pp) |
| 984 | { |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 985 | u32 index; |
| 986 | |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 987 | /* |
| 988 | * initialize request queue |
| 989 | */ |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 990 | pp->req_idx &= MV_MAX_Q_DEPTH_MASK; /* paranoia */ |
| 991 | index = pp->req_idx << EDMA_REQ_Q_PTR_SHIFT; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 992 | |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 993 | WARN_ON(pp->crqb_dma & 0x3ff); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 994 | writel((pp->crqb_dma >> 16) >> 16, port_mmio + EDMA_REQ_Q_BASE_HI); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 995 | writelfl((pp->crqb_dma & EDMA_REQ_Q_BASE_LO_MASK) | index, |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 996 | port_mmio + EDMA_REQ_Q_IN_PTR); |
| 997 | writelfl(index, port_mmio + EDMA_REQ_Q_OUT_PTR); |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 998 | |
| 999 | /* |
| 1000 | * initialize response queue |
| 1001 | */ |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 1002 | pp->resp_idx &= MV_MAX_Q_DEPTH_MASK; /* paranoia */ |
| 1003 | index = pp->resp_idx << EDMA_RSP_Q_PTR_SHIFT; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 1004 | |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 1005 | WARN_ON(pp->crpb_dma & 0xff); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1006 | writel((pp->crpb_dma >> 16) >> 16, port_mmio + EDMA_RSP_Q_BASE_HI); |
| 1007 | writelfl(index, port_mmio + EDMA_RSP_Q_IN_PTR); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 1008 | writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) | index, |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1009 | port_mmio + EDMA_RSP_Q_OUT_PTR); |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 1010 | } |
| 1011 | |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1012 | static void mv_write_main_irq_mask(u32 mask, struct mv_host_priv *hpriv) |
| 1013 | { |
| 1014 | /* |
| 1015 | * When writing to the main_irq_mask in hardware, |
| 1016 | * we must ensure exclusivity between the interrupt coalescing bits |
| 1017 | * and the corresponding individual port DONE_IRQ bits. |
| 1018 | * |
| 1019 | * Note that this register is really an "IRQ enable" register, |
| 1020 | * not an "IRQ mask" register as Marvell's naming might suggest. |
| 1021 | */ |
| 1022 | if (mask & (ALL_PORTS_COAL_DONE | PORTS_0_3_COAL_DONE)) |
| 1023 | mask &= ~DONE_IRQ_0_3; |
| 1024 | if (mask & (ALL_PORTS_COAL_DONE | PORTS_4_7_COAL_DONE)) |
| 1025 | mask &= ~DONE_IRQ_4_7; |
| 1026 | writelfl(mask, hpriv->main_irq_mask_addr); |
| 1027 | } |
| 1028 | |
Mark Lord | c4de573 | 2008-05-17 13:35:21 -0400 | [diff] [blame] | 1029 | static void mv_set_main_irq_mask(struct ata_host *host, |
| 1030 | u32 disable_bits, u32 enable_bits) |
| 1031 | { |
| 1032 | struct mv_host_priv *hpriv = host->private_data; |
| 1033 | u32 old_mask, new_mask; |
| 1034 | |
Mark Lord | 96e2c487 | 2008-05-17 13:38:00 -0400 | [diff] [blame] | 1035 | old_mask = hpriv->main_irq_mask; |
Mark Lord | c4de573 | 2008-05-17 13:35:21 -0400 | [diff] [blame] | 1036 | new_mask = (old_mask & ~disable_bits) | enable_bits; |
Mark Lord | 96e2c487 | 2008-05-17 13:38:00 -0400 | [diff] [blame] | 1037 | if (new_mask != old_mask) { |
| 1038 | hpriv->main_irq_mask = new_mask; |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1039 | mv_write_main_irq_mask(new_mask, hpriv); |
Mark Lord | 96e2c487 | 2008-05-17 13:38:00 -0400 | [diff] [blame] | 1040 | } |
Mark Lord | c4de573 | 2008-05-17 13:35:21 -0400 | [diff] [blame] | 1041 | } |
| 1042 | |
| 1043 | static void mv_enable_port_irqs(struct ata_port *ap, |
| 1044 | unsigned int port_bits) |
| 1045 | { |
| 1046 | unsigned int shift, hardport, port = ap->port_no; |
| 1047 | u32 disable_bits, enable_bits; |
| 1048 | |
| 1049 | MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport); |
| 1050 | |
| 1051 | disable_bits = (DONE_IRQ | ERR_IRQ) << shift; |
| 1052 | enable_bits = port_bits << shift; |
| 1053 | mv_set_main_irq_mask(ap->host, disable_bits, enable_bits); |
| 1054 | } |
| 1055 | |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1056 | static void mv_clear_and_enable_port_irqs(struct ata_port *ap, |
| 1057 | void __iomem *port_mmio, |
| 1058 | unsigned int port_irqs) |
| 1059 | { |
| 1060 | struct mv_host_priv *hpriv = ap->host->private_data; |
| 1061 | int hardport = mv_hardport_from_port(ap->port_no); |
| 1062 | void __iomem *hc_mmio = mv_hc_base_from_port( |
| 1063 | mv_host_base(ap->host), ap->port_no); |
| 1064 | u32 hc_irq_cause; |
| 1065 | |
| 1066 | /* clear EDMA event indicators, if any */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1067 | writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE); |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1068 | |
| 1069 | /* clear pending irq events */ |
| 1070 | hc_irq_cause = ~((DEV_IRQ | DMA_IRQ) << hardport); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1071 | writelfl(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE); |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1072 | |
| 1073 | /* clear FIS IRQ Cause */ |
| 1074 | if (IS_GEN_IIE(hpriv)) |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1075 | writelfl(0, port_mmio + FIS_IRQ_CAUSE); |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1076 | |
| 1077 | mv_enable_port_irqs(ap, port_irqs); |
| 1078 | } |
| 1079 | |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1080 | static void mv_set_irq_coalescing(struct ata_host *host, |
| 1081 | unsigned int count, unsigned int usecs) |
| 1082 | { |
| 1083 | struct mv_host_priv *hpriv = host->private_data; |
| 1084 | void __iomem *mmio = hpriv->base, *hc_mmio; |
| 1085 | u32 coal_enable = 0; |
| 1086 | unsigned long flags; |
Mark Lord | 6abf467 | 2009-03-11 00:56:00 -0400 | [diff] [blame] | 1087 | unsigned int clks, is_dual_hc = hpriv->n_ports > MV_PORTS_PER_HC; |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1088 | const u32 coal_disable = PORTS_0_3_COAL_DONE | PORTS_4_7_COAL_DONE | |
| 1089 | ALL_PORTS_COAL_DONE; |
| 1090 | |
| 1091 | /* Disable IRQ coalescing if either threshold is zero */ |
| 1092 | if (!usecs || !count) { |
| 1093 | clks = count = 0; |
| 1094 | } else { |
| 1095 | /* Respect maximum limits of the hardware */ |
| 1096 | clks = usecs * COAL_CLOCKS_PER_USEC; |
| 1097 | if (clks > MAX_COAL_TIME_THRESHOLD) |
| 1098 | clks = MAX_COAL_TIME_THRESHOLD; |
| 1099 | if (count > MAX_COAL_IO_COUNT) |
| 1100 | count = MAX_COAL_IO_COUNT; |
| 1101 | } |
| 1102 | |
| 1103 | spin_lock_irqsave(&host->lock, flags); |
Mark Lord | 6abf467 | 2009-03-11 00:56:00 -0400 | [diff] [blame] | 1104 | mv_set_main_irq_mask(host, coal_disable, 0); |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1105 | |
Mark Lord | 6abf467 | 2009-03-11 00:56:00 -0400 | [diff] [blame] | 1106 | if (is_dual_hc && !IS_GEN_I(hpriv)) { |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1107 | /* |
Mark Lord | 6abf467 | 2009-03-11 00:56:00 -0400 | [diff] [blame] | 1108 | * GEN_II/GEN_IIE with dual host controllers: |
| 1109 | * one set of global thresholds for the entire chip. |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1110 | */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1111 | writel(clks, mmio + IRQ_COAL_TIME_THRESHOLD); |
| 1112 | writel(count, mmio + IRQ_COAL_IO_THRESHOLD); |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1113 | /* clear leftover coal IRQ bit */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1114 | writel(~ALL_PORTS_COAL_IRQ, mmio + IRQ_COAL_CAUSE); |
Mark Lord | 6abf467 | 2009-03-11 00:56:00 -0400 | [diff] [blame] | 1115 | if (count) |
| 1116 | coal_enable = ALL_PORTS_COAL_DONE; |
| 1117 | clks = count = 0; /* force clearing of regular regs below */ |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1118 | } |
Mark Lord | 6abf467 | 2009-03-11 00:56:00 -0400 | [diff] [blame] | 1119 | |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1120 | /* |
| 1121 | * All chips: independent thresholds for each HC on the chip. |
| 1122 | */ |
| 1123 | hc_mmio = mv_hc_base_from_port(mmio, 0); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1124 | writel(clks, hc_mmio + HC_IRQ_COAL_TIME_THRESHOLD); |
| 1125 | writel(count, hc_mmio + HC_IRQ_COAL_IO_THRESHOLD); |
| 1126 | writel(~HC_COAL_IRQ, hc_mmio + HC_IRQ_CAUSE); |
Mark Lord | 6abf467 | 2009-03-11 00:56:00 -0400 | [diff] [blame] | 1127 | if (count) |
| 1128 | coal_enable |= PORTS_0_3_COAL_DONE; |
| 1129 | if (is_dual_hc) { |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1130 | hc_mmio = mv_hc_base_from_port(mmio, MV_PORTS_PER_HC); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1131 | writel(clks, hc_mmio + HC_IRQ_COAL_TIME_THRESHOLD); |
| 1132 | writel(count, hc_mmio + HC_IRQ_COAL_IO_THRESHOLD); |
| 1133 | writel(~HC_COAL_IRQ, hc_mmio + HC_IRQ_CAUSE); |
Mark Lord | 6abf467 | 2009-03-11 00:56:00 -0400 | [diff] [blame] | 1134 | if (count) |
| 1135 | coal_enable |= PORTS_4_7_COAL_DONE; |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1136 | } |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1137 | |
Mark Lord | 6abf467 | 2009-03-11 00:56:00 -0400 | [diff] [blame] | 1138 | mv_set_main_irq_mask(host, 0, coal_enable); |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 1139 | spin_unlock_irqrestore(&host->lock, flags); |
| 1140 | } |
| 1141 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1142 | /** |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1143 | * mv_start_edma - Enable eDMA engine |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1144 | * @base: port base address |
| 1145 | * @pp: port private data |
| 1146 | * |
Tejun Heo | beec7db | 2006-02-11 19:11:13 +0900 | [diff] [blame] | 1147 | * Verify the local cache of the eDMA state is accurate with a |
| 1148 | * WARN_ON. |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1149 | * |
| 1150 | * LOCKING: |
| 1151 | * Inherited from caller. |
| 1152 | */ |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1153 | static void mv_start_edma(struct ata_port *ap, void __iomem *port_mmio, |
Mark Lord | 7210916 | 2008-01-26 18:31:33 -0500 | [diff] [blame] | 1154 | struct mv_port_priv *pp, u8 protocol) |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1155 | { |
Mark Lord | 7210916 | 2008-01-26 18:31:33 -0500 | [diff] [blame] | 1156 | int want_ncq = (protocol == ATA_PROT_NCQ); |
| 1157 | |
| 1158 | if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) { |
| 1159 | int using_ncq = ((pp->pp_flags & MV_PP_FLAG_NCQ_EN) != 0); |
| 1160 | if (want_ncq != using_ncq) |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1161 | mv_stop_edma(ap); |
Mark Lord | 7210916 | 2008-01-26 18:31:33 -0500 | [diff] [blame] | 1162 | } |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 1163 | if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) { |
Mark Lord | 0c58912 | 2008-01-26 18:31:16 -0500 | [diff] [blame] | 1164 | struct mv_host_priv *hpriv = ap->host->private_data; |
Mark Lord | 0c58912 | 2008-01-26 18:31:16 -0500 | [diff] [blame] | 1165 | |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1166 | mv_edma_cfg(ap, want_ncq, 1); |
Mark Lord | 0c58912 | 2008-01-26 18:31:16 -0500 | [diff] [blame] | 1167 | |
Mark Lord | f630d56 | 2008-01-26 18:31:00 -0500 | [diff] [blame] | 1168 | mv_set_edma_ptrs(port_mmio, hpriv, pp); |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1169 | mv_clear_and_enable_port_irqs(ap, port_mmio, DONE_IRQ|ERR_IRQ); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 1170 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1171 | writelfl(EDMA_EN, port_mmio + EDMA_CMD); |
Brett Russ | afb0edd | 2005-10-05 17:08:42 -0400 | [diff] [blame] | 1172 | pp->pp_flags |= MV_PP_FLAG_EDMA_EN; |
| 1173 | } |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1174 | } |
| 1175 | |
Mark Lord | 9b2c4e0 | 2008-05-02 02:09:14 -0400 | [diff] [blame] | 1176 | static void mv_wait_for_edma_empty_idle(struct ata_port *ap) |
| 1177 | { |
| 1178 | void __iomem *port_mmio = mv_ap_base(ap); |
| 1179 | const u32 empty_idle = (EDMA_STATUS_CACHE_EMPTY | EDMA_STATUS_IDLE); |
| 1180 | const int per_loop = 5, timeout = (15 * 1000 / per_loop); |
| 1181 | int i; |
| 1182 | |
| 1183 | /* |
| 1184 | * Wait for the EDMA engine to finish transactions in progress. |
Mark Lord | c46938c | 2008-05-02 14:02:28 -0400 | [diff] [blame] | 1185 | * No idea what a good "timeout" value might be, but measurements |
| 1186 | * indicate that it often requires hundreds of microseconds |
| 1187 | * with two drives in-use. So we use the 15msec value above |
| 1188 | * as a rough guess at what even more drives might require. |
Mark Lord | 9b2c4e0 | 2008-05-02 02:09:14 -0400 | [diff] [blame] | 1189 | */ |
| 1190 | for (i = 0; i < timeout; ++i) { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1191 | u32 edma_stat = readl(port_mmio + EDMA_STATUS); |
Mark Lord | 9b2c4e0 | 2008-05-02 02:09:14 -0400 | [diff] [blame] | 1192 | if ((edma_stat & empty_idle) == empty_idle) |
| 1193 | break; |
| 1194 | udelay(per_loop); |
| 1195 | } |
| 1196 | /* ata_port_printk(ap, KERN_INFO, "%s: %u+ usecs\n", __func__, i); */ |
| 1197 | } |
| 1198 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1199 | /** |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 1200 | * mv_stop_edma_engine - Disable eDMA engine |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1201 | * @port_mmio: io base address |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1202 | * |
| 1203 | * LOCKING: |
| 1204 | * Inherited from caller. |
| 1205 | */ |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1206 | static int mv_stop_edma_engine(void __iomem *port_mmio) |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1207 | { |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1208 | int i; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1209 | |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1210 | /* Disable eDMA. The disable bit auto clears. */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1211 | writelfl(EDMA_DS, port_mmio + EDMA_CMD); |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 1212 | |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1213 | /* Wait for the chip to confirm eDMA is off. */ |
| 1214 | for (i = 10000; i > 0; i--) { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1215 | u32 reg = readl(port_mmio + EDMA_CMD); |
Jeff Garzik | 4537deb | 2007-07-12 14:30:19 -0400 | [diff] [blame] | 1216 | if (!(reg & EDMA_EN)) |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1217 | return 0; |
| 1218 | udelay(10); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1219 | } |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1220 | return -EIO; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1221 | } |
| 1222 | |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 1223 | static int mv_stop_edma(struct ata_port *ap) |
Jeff Garzik | 0ea9e17 | 2007-07-13 17:06:45 -0400 | [diff] [blame] | 1224 | { |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1225 | void __iomem *port_mmio = mv_ap_base(ap); |
| 1226 | struct mv_port_priv *pp = ap->private_data; |
Mark Lord | 66e57a2 | 2009-01-30 18:52:58 -0500 | [diff] [blame] | 1227 | int err = 0; |
Jeff Garzik | 0ea9e17 | 2007-07-13 17:06:45 -0400 | [diff] [blame] | 1228 | |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1229 | if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) |
| 1230 | return 0; |
| 1231 | pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN; |
Mark Lord | 9b2c4e0 | 2008-05-02 02:09:14 -0400 | [diff] [blame] | 1232 | mv_wait_for_edma_empty_idle(ap); |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1233 | if (mv_stop_edma_engine(port_mmio)) { |
| 1234 | ata_port_printk(ap, KERN_ERR, "Unable to stop eDMA\n"); |
Mark Lord | 66e57a2 | 2009-01-30 18:52:58 -0500 | [diff] [blame] | 1235 | err = -EIO; |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 1236 | } |
Mark Lord | 66e57a2 | 2009-01-30 18:52:58 -0500 | [diff] [blame] | 1237 | mv_edma_cfg(ap, 0, 0); |
| 1238 | return err; |
Jeff Garzik | 0ea9e17 | 2007-07-13 17:06:45 -0400 | [diff] [blame] | 1239 | } |
| 1240 | |
Jeff Garzik | 8a70f8d | 2005-10-05 17:19:47 -0400 | [diff] [blame] | 1241 | #ifdef ATA_DEBUG |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1242 | static void mv_dump_mem(void __iomem *start, unsigned bytes) |
| 1243 | { |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1244 | int b, w; |
| 1245 | for (b = 0; b < bytes; ) { |
| 1246 | DPRINTK("%p: ", start + b); |
| 1247 | for (w = 0; b < bytes && w < 4; w++) { |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 1248 | printk("%08x ", readl(start + b)); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1249 | b += sizeof(u32); |
| 1250 | } |
| 1251 | printk("\n"); |
| 1252 | } |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1253 | } |
Jeff Garzik | 8a70f8d | 2005-10-05 17:19:47 -0400 | [diff] [blame] | 1254 | #endif |
| 1255 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1256 | static void mv_dump_pci_cfg(struct pci_dev *pdev, unsigned bytes) |
| 1257 | { |
| 1258 | #ifdef ATA_DEBUG |
| 1259 | int b, w; |
| 1260 | u32 dw; |
| 1261 | for (b = 0; b < bytes; ) { |
| 1262 | DPRINTK("%02x: ", b); |
| 1263 | for (w = 0; b < bytes && w < 4; w++) { |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 1264 | (void) pci_read_config_dword(pdev, b, &dw); |
| 1265 | printk("%08x ", dw); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1266 | b += sizeof(u32); |
| 1267 | } |
| 1268 | printk("\n"); |
| 1269 | } |
| 1270 | #endif |
| 1271 | } |
| 1272 | static void mv_dump_all_regs(void __iomem *mmio_base, int port, |
| 1273 | struct pci_dev *pdev) |
| 1274 | { |
| 1275 | #ifdef ATA_DEBUG |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 1276 | void __iomem *hc_base = mv_hc_base(mmio_base, |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1277 | port >> MV_PORT_HC_SHIFT); |
| 1278 | void __iomem *port_base; |
| 1279 | int start_port, num_ports, p, start_hc, num_hcs, hc; |
| 1280 | |
| 1281 | if (0 > port) { |
| 1282 | start_hc = start_port = 0; |
| 1283 | num_ports = 8; /* shld be benign for 4 port devs */ |
| 1284 | num_hcs = 2; |
| 1285 | } else { |
| 1286 | start_hc = port >> MV_PORT_HC_SHIFT; |
| 1287 | start_port = port; |
| 1288 | num_ports = num_hcs = 1; |
| 1289 | } |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 1290 | DPRINTK("All registers for port(s) %u-%u:\n", start_port, |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1291 | num_ports > 1 ? num_ports - 1 : start_port); |
| 1292 | |
| 1293 | if (NULL != pdev) { |
| 1294 | DPRINTK("PCI config space regs:\n"); |
| 1295 | mv_dump_pci_cfg(pdev, 0x68); |
| 1296 | } |
| 1297 | DPRINTK("PCI regs:\n"); |
| 1298 | mv_dump_mem(mmio_base+0xc00, 0x3c); |
| 1299 | mv_dump_mem(mmio_base+0xd00, 0x34); |
| 1300 | mv_dump_mem(mmio_base+0xf00, 0x4); |
| 1301 | mv_dump_mem(mmio_base+0x1d00, 0x6c); |
| 1302 | for (hc = start_hc; hc < start_hc + num_hcs; hc++) { |
Dan Aloni | d220c37 | 2006-04-10 23:20:22 -0700 | [diff] [blame] | 1303 | hc_base = mv_hc_base(mmio_base, hc); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1304 | DPRINTK("HC regs (HC %i):\n", hc); |
| 1305 | mv_dump_mem(hc_base, 0x1c); |
| 1306 | } |
| 1307 | for (p = start_port; p < start_port + num_ports; p++) { |
| 1308 | port_base = mv_port_base(mmio_base, p); |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 1309 | DPRINTK("EDMA regs (port %i):\n", p); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1310 | mv_dump_mem(port_base, 0x54); |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 1311 | DPRINTK("SATA regs (port %i):\n", p); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1312 | mv_dump_mem(port_base+0x300, 0x60); |
| 1313 | } |
| 1314 | #endif |
| 1315 | } |
| 1316 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 1317 | static unsigned int mv_scr_offset(unsigned int sc_reg_in) |
| 1318 | { |
| 1319 | unsigned int ofs; |
| 1320 | |
| 1321 | switch (sc_reg_in) { |
| 1322 | case SCR_STATUS: |
| 1323 | case SCR_CONTROL: |
| 1324 | case SCR_ERROR: |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1325 | ofs = SATA_STATUS + (sc_reg_in * sizeof(u32)); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 1326 | break; |
| 1327 | case SCR_ACTIVE: |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1328 | ofs = SATA_ACTIVE; /* active is not with the others */ |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 1329 | break; |
| 1330 | default: |
| 1331 | ofs = 0xffffffffU; |
| 1332 | break; |
| 1333 | } |
| 1334 | return ofs; |
| 1335 | } |
| 1336 | |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 1337 | static int mv_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 1338 | { |
| 1339 | unsigned int ofs = mv_scr_offset(sc_reg_in); |
| 1340 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 1341 | if (ofs != 0xffffffffU) { |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 1342 | *val = readl(mv_ap_base(link->ap) + ofs); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 1343 | return 0; |
| 1344 | } else |
| 1345 | return -EINVAL; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 1346 | } |
| 1347 | |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 1348 | static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 1349 | { |
| 1350 | unsigned int ofs = mv_scr_offset(sc_reg_in); |
| 1351 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 1352 | if (ofs != 0xffffffffU) { |
Mark Lord | 2009177 | 2009-04-06 15:24:57 -0400 | [diff] [blame] | 1353 | void __iomem *addr = mv_ap_base(link->ap) + ofs; |
| 1354 | if (sc_reg_in == SCR_CONTROL) { |
| 1355 | /* |
| 1356 | * Workaround for 88SX60x1 FEr SATA#26: |
| 1357 | * |
| 1358 | * COMRESETs have to take care not to accidently |
| 1359 | * put the drive to sleep when writing SCR_CONTROL. |
| 1360 | * Setting bits 12..15 prevents this problem. |
| 1361 | * |
| 1362 | * So if we see an outbound COMMRESET, set those bits. |
| 1363 | * Ditto for the followup write that clears the reset. |
| 1364 | * |
| 1365 | * The proprietary driver does this for |
| 1366 | * all chip versions, and so do we. |
| 1367 | */ |
| 1368 | if ((val & 0xf) == 1 || (readl(addr) & 0xf) == 1) |
| 1369 | val |= 0xf000; |
| 1370 | } |
| 1371 | writelfl(val, addr); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 1372 | return 0; |
| 1373 | } else |
| 1374 | return -EINVAL; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 1375 | } |
| 1376 | |
Mark Lord | f273827 | 2008-01-26 18:32:29 -0500 | [diff] [blame] | 1377 | static void mv6_dev_config(struct ata_device *adev) |
| 1378 | { |
| 1379 | /* |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 1380 | * Deal with Gen-II ("mv6") hardware quirks/restrictions: |
| 1381 | * |
| 1382 | * Gen-II does not support NCQ over a port multiplier |
| 1383 | * (no FIS-based switching). |
Mark Lord | f273827 | 2008-01-26 18:32:29 -0500 | [diff] [blame] | 1384 | */ |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 1385 | if (adev->flags & ATA_DFLAG_NCQ) { |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 1386 | if (sata_pmp_attached(adev->link->ap)) { |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 1387 | adev->flags &= ~ATA_DFLAG_NCQ; |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 1388 | ata_dev_printk(adev, KERN_INFO, |
| 1389 | "NCQ disabled for command-based switching\n"); |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 1390 | } |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 1391 | } |
Mark Lord | f273827 | 2008-01-26 18:32:29 -0500 | [diff] [blame] | 1392 | } |
| 1393 | |
Mark Lord | 3e4a139 | 2008-05-02 02:10:02 -0400 | [diff] [blame] | 1394 | static int mv_qc_defer(struct ata_queued_cmd *qc) |
| 1395 | { |
| 1396 | struct ata_link *link = qc->dev->link; |
| 1397 | struct ata_port *ap = link->ap; |
| 1398 | struct mv_port_priv *pp = ap->private_data; |
| 1399 | |
| 1400 | /* |
Mark Lord | 29d187b | 2008-05-02 02:15:37 -0400 | [diff] [blame] | 1401 | * Don't allow new commands if we're in a delayed EH state |
| 1402 | * for NCQ and/or FIS-based switching. |
| 1403 | */ |
| 1404 | if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) |
| 1405 | return ATA_DEFER_PORT; |
Gwendal Grignou | 159a7ff | 2009-10-12 15:44:00 -0700 | [diff] [blame] | 1406 | |
| 1407 | /* PIO commands need exclusive link: no other commands [DMA or PIO] |
| 1408 | * can run concurrently. |
| 1409 | * set excl_link when we want to send a PIO command in DMA mode |
| 1410 | * or a non-NCQ command in NCQ mode. |
| 1411 | * When we receive a command from that link, and there are no |
| 1412 | * outstanding commands, mark a flag to clear excl_link and let |
| 1413 | * the command go through. |
| 1414 | */ |
| 1415 | if (unlikely(ap->excl_link)) { |
| 1416 | if (link == ap->excl_link) { |
| 1417 | if (ap->nr_active_links) |
| 1418 | return ATA_DEFER_PORT; |
| 1419 | qc->flags |= ATA_QCFLAG_CLEAR_EXCL; |
| 1420 | return 0; |
| 1421 | } else |
| 1422 | return ATA_DEFER_PORT; |
| 1423 | } |
| 1424 | |
Mark Lord | 29d187b | 2008-05-02 02:15:37 -0400 | [diff] [blame] | 1425 | /* |
Mark Lord | 3e4a139 | 2008-05-02 02:10:02 -0400 | [diff] [blame] | 1426 | * If the port is completely idle, then allow the new qc. |
| 1427 | */ |
| 1428 | if (ap->nr_active_links == 0) |
| 1429 | return 0; |
| 1430 | |
Tejun Heo | 4bdee6c | 2008-08-13 20:24:16 +0900 | [diff] [blame] | 1431 | /* |
| 1432 | * The port is operating in host queuing mode (EDMA) with NCQ |
| 1433 | * enabled, allow multiple NCQ commands. EDMA also allows |
| 1434 | * queueing multiple DMA commands but libata core currently |
| 1435 | * doesn't allow it. |
| 1436 | */ |
| 1437 | if ((pp->pp_flags & MV_PP_FLAG_EDMA_EN) && |
Gwendal Grignou | 159a7ff | 2009-10-12 15:44:00 -0700 | [diff] [blame] | 1438 | (pp->pp_flags & MV_PP_FLAG_NCQ_EN)) { |
| 1439 | if (ata_is_ncq(qc->tf.protocol)) |
| 1440 | return 0; |
| 1441 | else { |
| 1442 | ap->excl_link = link; |
| 1443 | return ATA_DEFER_PORT; |
| 1444 | } |
| 1445 | } |
Tejun Heo | 4bdee6c | 2008-08-13 20:24:16 +0900 | [diff] [blame] | 1446 | |
Mark Lord | 3e4a139 | 2008-05-02 02:10:02 -0400 | [diff] [blame] | 1447 | return ATA_DEFER_PORT; |
| 1448 | } |
| 1449 | |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1450 | static void mv_config_fbs(struct ata_port *ap, int want_ncq, int want_fbs) |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 1451 | { |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1452 | struct mv_port_priv *pp = ap->private_data; |
| 1453 | void __iomem *port_mmio; |
Mark Lord | 00f42ea | 2008-05-02 02:11:45 -0400 | [diff] [blame] | 1454 | |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1455 | u32 fiscfg, *old_fiscfg = &pp->cached.fiscfg; |
| 1456 | u32 ltmode, *old_ltmode = &pp->cached.ltmode; |
| 1457 | u32 haltcond, *old_haltcond = &pp->cached.haltcond; |
Mark Lord | 00f42ea | 2008-05-02 02:11:45 -0400 | [diff] [blame] | 1458 | |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1459 | ltmode = *old_ltmode & ~LTMODE_BIT8; |
| 1460 | haltcond = *old_haltcond | EDMA_ERR_DEV; |
Mark Lord | 00f42ea | 2008-05-02 02:11:45 -0400 | [diff] [blame] | 1461 | |
| 1462 | if (want_fbs) { |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1463 | fiscfg = *old_fiscfg | FISCFG_SINGLE_SYNC; |
| 1464 | ltmode = *old_ltmode | LTMODE_BIT8; |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 1465 | if (want_ncq) |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1466 | haltcond &= ~EDMA_ERR_DEV; |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 1467 | else |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1468 | fiscfg |= FISCFG_WAIT_DEV_ERR; |
| 1469 | } else { |
| 1470 | fiscfg = *old_fiscfg & ~(FISCFG_SINGLE_SYNC | FISCFG_WAIT_DEV_ERR); |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 1471 | } |
Mark Lord | 00f42ea | 2008-05-02 02:11:45 -0400 | [diff] [blame] | 1472 | |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1473 | port_mmio = mv_ap_base(ap); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1474 | mv_write_cached_reg(port_mmio + FISCFG, old_fiscfg, fiscfg); |
| 1475 | mv_write_cached_reg(port_mmio + LTMODE, old_ltmode, ltmode); |
| 1476 | mv_write_cached_reg(port_mmio + EDMA_HALTCOND, old_haltcond, haltcond); |
Mark Lord | 0c58912 | 2008-01-26 18:31:16 -0500 | [diff] [blame] | 1477 | } |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 1478 | |
Mark Lord | dd2890f | 2008-05-02 02:10:56 -0400 | [diff] [blame] | 1479 | static void mv_60x1_errata_sata25(struct ata_port *ap, int want_ncq) |
| 1480 | { |
| 1481 | struct mv_host_priv *hpriv = ap->host->private_data; |
| 1482 | u32 old, new; |
| 1483 | |
| 1484 | /* workaround for 88SX60x1 FEr SATA#25 (part 1) */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1485 | old = readl(hpriv->base + GPIO_PORT_CTL); |
Mark Lord | dd2890f | 2008-05-02 02:10:56 -0400 | [diff] [blame] | 1486 | if (want_ncq) |
| 1487 | new = old | (1 << 22); |
| 1488 | else |
| 1489 | new = old & ~(1 << 22); |
| 1490 | if (new != old) |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1491 | writel(new, hpriv->base + GPIO_PORT_CTL); |
Mark Lord | dd2890f | 2008-05-02 02:10:56 -0400 | [diff] [blame] | 1492 | } |
| 1493 | |
Mark Lord | c01e8a2 | 2009-02-25 15:14:48 -0500 | [diff] [blame] | 1494 | /** |
Mark Lord | 40f21b1 | 2009-03-10 18:51:04 -0400 | [diff] [blame] | 1495 | * mv_bmdma_enable - set a magic bit on GEN_IIE to allow bmdma |
| 1496 | * @ap: Port being initialized |
Mark Lord | c01e8a2 | 2009-02-25 15:14:48 -0500 | [diff] [blame] | 1497 | * |
| 1498 | * There are two DMA modes on these chips: basic DMA, and EDMA. |
| 1499 | * |
| 1500 | * Bit-0 of the "EDMA RESERVED" register enables/disables use |
| 1501 | * of basic DMA on the GEN_IIE versions of the chips. |
| 1502 | * |
| 1503 | * This bit survives EDMA resets, and must be set for basic DMA |
| 1504 | * to function, and should be cleared when EDMA is active. |
| 1505 | */ |
| 1506 | static void mv_bmdma_enable_iie(struct ata_port *ap, int enable_bmdma) |
| 1507 | { |
| 1508 | struct mv_port_priv *pp = ap->private_data; |
| 1509 | u32 new, *old = &pp->cached.unknown_rsvd; |
| 1510 | |
| 1511 | if (enable_bmdma) |
| 1512 | new = *old | 1; |
| 1513 | else |
| 1514 | new = *old & ~1; |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1515 | mv_write_cached_reg(mv_ap_base(ap) + EDMA_UNKNOWN_RSVD, old, new); |
Mark Lord | c01e8a2 | 2009-02-25 15:14:48 -0500 | [diff] [blame] | 1516 | } |
| 1517 | |
Mark Lord | 000b344 | 2009-03-15 11:33:19 -0400 | [diff] [blame] | 1518 | /* |
| 1519 | * SOC chips have an issue whereby the HDD LEDs don't always blink |
| 1520 | * during I/O when NCQ is enabled. Enabling a special "LED blink" mode |
| 1521 | * of the SOC takes care of it, generating a steady blink rate when |
| 1522 | * any drive on the chip is active. |
| 1523 | * |
| 1524 | * Unfortunately, the blink mode is a global hardware setting for the SOC, |
| 1525 | * so we must use it whenever at least one port on the SOC has NCQ enabled. |
| 1526 | * |
| 1527 | * We turn "LED blink" off when NCQ is not in use anywhere, because the normal |
| 1528 | * LED operation works then, and provides better (more accurate) feedback. |
| 1529 | * |
| 1530 | * Note that this code assumes that an SOC never has more than one HC onboard. |
| 1531 | */ |
| 1532 | static void mv_soc_led_blink_enable(struct ata_port *ap) |
| 1533 | { |
| 1534 | struct ata_host *host = ap->host; |
| 1535 | struct mv_host_priv *hpriv = host->private_data; |
| 1536 | void __iomem *hc_mmio; |
| 1537 | u32 led_ctrl; |
| 1538 | |
| 1539 | if (hpriv->hp_flags & MV_HP_QUIRK_LED_BLINK_EN) |
| 1540 | return; |
| 1541 | hpriv->hp_flags |= MV_HP_QUIRK_LED_BLINK_EN; |
| 1542 | hc_mmio = mv_hc_base_from_port(mv_host_base(host), ap->port_no); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1543 | led_ctrl = readl(hc_mmio + SOC_LED_CTRL); |
| 1544 | writel(led_ctrl | SOC_LED_CTRL_BLINK, hc_mmio + SOC_LED_CTRL); |
Mark Lord | 000b344 | 2009-03-15 11:33:19 -0400 | [diff] [blame] | 1545 | } |
| 1546 | |
| 1547 | static void mv_soc_led_blink_disable(struct ata_port *ap) |
| 1548 | { |
| 1549 | struct ata_host *host = ap->host; |
| 1550 | struct mv_host_priv *hpriv = host->private_data; |
| 1551 | void __iomem *hc_mmio; |
| 1552 | u32 led_ctrl; |
| 1553 | unsigned int port; |
| 1554 | |
| 1555 | if (!(hpriv->hp_flags & MV_HP_QUIRK_LED_BLINK_EN)) |
| 1556 | return; |
| 1557 | |
| 1558 | /* disable led-blink only if no ports are using NCQ */ |
| 1559 | for (port = 0; port < hpriv->n_ports; port++) { |
| 1560 | struct ata_port *this_ap = host->ports[port]; |
| 1561 | struct mv_port_priv *pp = this_ap->private_data; |
| 1562 | |
| 1563 | if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) |
| 1564 | return; |
| 1565 | } |
| 1566 | |
| 1567 | hpriv->hp_flags &= ~MV_HP_QUIRK_LED_BLINK_EN; |
| 1568 | hc_mmio = mv_hc_base_from_port(mv_host_base(host), ap->port_no); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1569 | led_ctrl = readl(hc_mmio + SOC_LED_CTRL); |
| 1570 | writel(led_ctrl & ~SOC_LED_CTRL_BLINK, hc_mmio + SOC_LED_CTRL); |
Mark Lord | 000b344 | 2009-03-15 11:33:19 -0400 | [diff] [blame] | 1571 | } |
| 1572 | |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1573 | static void mv_edma_cfg(struct ata_port *ap, int want_ncq, int want_edma) |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 1574 | { |
| 1575 | u32 cfg; |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 1576 | struct mv_port_priv *pp = ap->private_data; |
| 1577 | struct mv_host_priv *hpriv = ap->host->private_data; |
| 1578 | void __iomem *port_mmio = mv_ap_base(ap); |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 1579 | |
| 1580 | /* set up non-NCQ EDMA configuration */ |
| 1581 | cfg = EDMA_CFG_Q_DEPTH; /* always 0x1f for *all* chips */ |
Mark Lord | d16ab3f | 2009-02-25 15:17:43 -0500 | [diff] [blame] | 1582 | pp->pp_flags &= |
| 1583 | ~(MV_PP_FLAG_FBS_EN | MV_PP_FLAG_NCQ_EN | MV_PP_FLAG_FAKE_ATA_BUSY); |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 1584 | |
| 1585 | if (IS_GEN_I(hpriv)) |
| 1586 | cfg |= (1 << 8); /* enab config burst size mask */ |
| 1587 | |
Mark Lord | dd2890f | 2008-05-02 02:10:56 -0400 | [diff] [blame] | 1588 | else if (IS_GEN_II(hpriv)) { |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 1589 | cfg |= EDMA_CFG_RD_BRST_EXT | EDMA_CFG_WR_BUFF_LEN; |
Mark Lord | dd2890f | 2008-05-02 02:10:56 -0400 | [diff] [blame] | 1590 | mv_60x1_errata_sata25(ap, want_ncq); |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 1591 | |
Mark Lord | dd2890f | 2008-05-02 02:10:56 -0400 | [diff] [blame] | 1592 | } else if (IS_GEN_IIE(hpriv)) { |
Mark Lord | 00f42ea | 2008-05-02 02:11:45 -0400 | [diff] [blame] | 1593 | int want_fbs = sata_pmp_attached(ap); |
| 1594 | /* |
| 1595 | * Possible future enhancement: |
| 1596 | * |
| 1597 | * The chip can use FBS with non-NCQ, if we allow it, |
| 1598 | * But first we need to have the error handling in place |
| 1599 | * for this mode (datasheet section 7.3.15.4.2.3). |
| 1600 | * So disallow non-NCQ FBS for now. |
| 1601 | */ |
| 1602 | want_fbs &= want_ncq; |
| 1603 | |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1604 | mv_config_fbs(ap, want_ncq, want_fbs); |
Mark Lord | 00f42ea | 2008-05-02 02:11:45 -0400 | [diff] [blame] | 1605 | |
| 1606 | if (want_fbs) { |
| 1607 | pp->pp_flags |= MV_PP_FLAG_FBS_EN; |
| 1608 | cfg |= EDMA_CFG_EDMA_FBS; /* FIS-based switching */ |
| 1609 | } |
| 1610 | |
Jeff Garzik | e728eab | 2007-02-25 02:53:41 -0500 | [diff] [blame] | 1611 | cfg |= (1 << 23); /* do not mask PM field in rx'd FIS */ |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1612 | if (want_edma) { |
| 1613 | cfg |= (1 << 22); /* enab 4-entry host queue cache */ |
| 1614 | if (!IS_SOC(hpriv)) |
| 1615 | cfg |= (1 << 18); /* enab early completion */ |
| 1616 | } |
Mark Lord | 616d4a9 | 2008-05-02 02:08:32 -0400 | [diff] [blame] | 1617 | if (hpriv->hp_flags & MV_HP_CUT_THROUGH) |
| 1618 | cfg |= (1 << 17); /* enab cut-thru (dis stor&forwrd) */ |
Mark Lord | c01e8a2 | 2009-02-25 15:14:48 -0500 | [diff] [blame] | 1619 | mv_bmdma_enable_iie(ap, !want_edma); |
Mark Lord | 000b344 | 2009-03-15 11:33:19 -0400 | [diff] [blame] | 1620 | |
| 1621 | if (IS_SOC(hpriv)) { |
| 1622 | if (want_ncq) |
| 1623 | mv_soc_led_blink_enable(ap); |
| 1624 | else |
| 1625 | mv_soc_led_blink_disable(ap); |
| 1626 | } |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 1627 | } |
| 1628 | |
Mark Lord | 7210916 | 2008-01-26 18:31:33 -0500 | [diff] [blame] | 1629 | if (want_ncq) { |
| 1630 | cfg |= EDMA_CFG_NCQ; |
| 1631 | pp->pp_flags |= MV_PP_FLAG_NCQ_EN; |
Mark Lord | 00b8123 | 2009-01-30 18:47:51 -0500 | [diff] [blame] | 1632 | } |
Mark Lord | 7210916 | 2008-01-26 18:31:33 -0500 | [diff] [blame] | 1633 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1634 | writelfl(cfg, port_mmio + EDMA_CFG); |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 1635 | } |
| 1636 | |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 1637 | static void mv_port_free_dma_mem(struct ata_port *ap) |
| 1638 | { |
| 1639 | struct mv_host_priv *hpriv = ap->host->private_data; |
| 1640 | struct mv_port_priv *pp = ap->private_data; |
Mark Lord | eb73d55 | 2008-01-29 13:24:00 -0500 | [diff] [blame] | 1641 | int tag; |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 1642 | |
| 1643 | if (pp->crqb) { |
| 1644 | dma_pool_free(hpriv->crqb_pool, pp->crqb, pp->crqb_dma); |
| 1645 | pp->crqb = NULL; |
| 1646 | } |
| 1647 | if (pp->crpb) { |
| 1648 | dma_pool_free(hpriv->crpb_pool, pp->crpb, pp->crpb_dma); |
| 1649 | pp->crpb = NULL; |
| 1650 | } |
Mark Lord | eb73d55 | 2008-01-29 13:24:00 -0500 | [diff] [blame] | 1651 | /* |
| 1652 | * For GEN_I, there's no NCQ, so we have only a single sg_tbl. |
| 1653 | * For later hardware, we have one unique sg_tbl per NCQ tag. |
| 1654 | */ |
| 1655 | for (tag = 0; tag < MV_MAX_Q_DEPTH; ++tag) { |
| 1656 | if (pp->sg_tbl[tag]) { |
| 1657 | if (tag == 0 || !IS_GEN_I(hpriv)) |
| 1658 | dma_pool_free(hpriv->sg_tbl_pool, |
| 1659 | pp->sg_tbl[tag], |
| 1660 | pp->sg_tbl_dma[tag]); |
| 1661 | pp->sg_tbl[tag] = NULL; |
| 1662 | } |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 1663 | } |
| 1664 | } |
| 1665 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1666 | /** |
| 1667 | * mv_port_start - Port specific init/start routine. |
| 1668 | * @ap: ATA channel to manipulate |
| 1669 | * |
| 1670 | * Allocate and point to DMA memory, init port private memory, |
| 1671 | * zero indices. |
| 1672 | * |
| 1673 | * LOCKING: |
| 1674 | * Inherited from caller. |
| 1675 | */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1676 | static int mv_port_start(struct ata_port *ap) |
| 1677 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 1678 | struct device *dev = ap->host->dev; |
| 1679 | struct mv_host_priv *hpriv = ap->host->private_data; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1680 | struct mv_port_priv *pp; |
Mark Lord | 933cb8e | 2009-04-06 12:30:43 -0400 | [diff] [blame] | 1681 | unsigned long flags; |
James Bottomley | dde2020 | 2008-02-19 11:36:56 +0100 | [diff] [blame] | 1682 | int tag; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1683 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1684 | pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); |
Jeff Garzik | 6037d6b | 2005-11-04 22:08:00 -0500 | [diff] [blame] | 1685 | if (!pp) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1686 | return -ENOMEM; |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 1687 | ap->private_data = pp; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1688 | |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 1689 | pp->crqb = dma_pool_alloc(hpriv->crqb_pool, GFP_KERNEL, &pp->crqb_dma); |
| 1690 | if (!pp->crqb) |
| 1691 | return -ENOMEM; |
| 1692 | memset(pp->crqb, 0, MV_CRQB_Q_SZ); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1693 | |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 1694 | pp->crpb = dma_pool_alloc(hpriv->crpb_pool, GFP_KERNEL, &pp->crpb_dma); |
| 1695 | if (!pp->crpb) |
| 1696 | goto out_port_free_dma_mem; |
| 1697 | memset(pp->crpb, 0, MV_CRPB_Q_SZ); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1698 | |
Mark Lord | 3bd0a70 | 2008-06-18 12:11:16 -0400 | [diff] [blame] | 1699 | /* 6041/6081 Rev. "C0" (and newer) are okay with async notify */ |
| 1700 | if (hpriv->hp_flags & MV_HP_ERRATA_60X1C0) |
| 1701 | ap->flags |= ATA_FLAG_AN; |
Mark Lord | eb73d55 | 2008-01-29 13:24:00 -0500 | [diff] [blame] | 1702 | /* |
| 1703 | * For GEN_I, there's no NCQ, so we only allocate a single sg_tbl. |
| 1704 | * For later hardware, we need one unique sg_tbl per NCQ tag. |
| 1705 | */ |
| 1706 | for (tag = 0; tag < MV_MAX_Q_DEPTH; ++tag) { |
| 1707 | if (tag == 0 || !IS_GEN_I(hpriv)) { |
| 1708 | pp->sg_tbl[tag] = dma_pool_alloc(hpriv->sg_tbl_pool, |
| 1709 | GFP_KERNEL, &pp->sg_tbl_dma[tag]); |
| 1710 | if (!pp->sg_tbl[tag]) |
| 1711 | goto out_port_free_dma_mem; |
| 1712 | } else { |
| 1713 | pp->sg_tbl[tag] = pp->sg_tbl[0]; |
| 1714 | pp->sg_tbl_dma[tag] = pp->sg_tbl_dma[0]; |
| 1715 | } |
| 1716 | } |
Mark Lord | 933cb8e | 2009-04-06 12:30:43 -0400 | [diff] [blame] | 1717 | |
| 1718 | spin_lock_irqsave(ap->lock, flags); |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 1719 | mv_save_cached_regs(ap); |
Mark Lord | 66e57a2 | 2009-01-30 18:52:58 -0500 | [diff] [blame] | 1720 | mv_edma_cfg(ap, 0, 0); |
Mark Lord | 933cb8e | 2009-04-06 12:30:43 -0400 | [diff] [blame] | 1721 | spin_unlock_irqrestore(ap->lock, flags); |
| 1722 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1723 | return 0; |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 1724 | |
| 1725 | out_port_free_dma_mem: |
| 1726 | mv_port_free_dma_mem(ap); |
| 1727 | return -ENOMEM; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1728 | } |
| 1729 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1730 | /** |
| 1731 | * mv_port_stop - Port specific cleanup/stop routine. |
| 1732 | * @ap: ATA channel to manipulate |
| 1733 | * |
| 1734 | * Stop DMA, cleanup port memory. |
| 1735 | * |
| 1736 | * LOCKING: |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 1737 | * This routine uses the host lock to protect the DMA stop. |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1738 | */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1739 | static void mv_port_stop(struct ata_port *ap) |
| 1740 | { |
Mark Lord | 933cb8e | 2009-04-06 12:30:43 -0400 | [diff] [blame] | 1741 | unsigned long flags; |
| 1742 | |
| 1743 | spin_lock_irqsave(ap->lock, flags); |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 1744 | mv_stop_edma(ap); |
Mark Lord | 88e675e | 2008-05-17 13:36:30 -0400 | [diff] [blame] | 1745 | mv_enable_port_irqs(ap, 0); |
Mark Lord | 933cb8e | 2009-04-06 12:30:43 -0400 | [diff] [blame] | 1746 | spin_unlock_irqrestore(ap->lock, flags); |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 1747 | mv_port_free_dma_mem(ap); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1748 | } |
| 1749 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1750 | /** |
| 1751 | * mv_fill_sg - Fill out the Marvell ePRD (scatter gather) entries |
| 1752 | * @qc: queued command whose SG list to source from |
| 1753 | * |
| 1754 | * Populate the SG list and mark the last entry. |
| 1755 | * |
| 1756 | * LOCKING: |
| 1757 | * Inherited from caller. |
| 1758 | */ |
Jeff Garzik | 6c08772 | 2007-10-12 00:16:23 -0400 | [diff] [blame] | 1759 | static void mv_fill_sg(struct ata_queued_cmd *qc) |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1760 | { |
| 1761 | struct mv_port_priv *pp = qc->ap->private_data; |
Jeff Garzik | 972c26b | 2005-10-18 22:14:54 -0400 | [diff] [blame] | 1762 | struct scatterlist *sg; |
Jeff Garzik | 3be6cbd | 2007-10-18 16:21:18 -0400 | [diff] [blame] | 1763 | struct mv_sg *mv_sg, *last_sg = NULL; |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 1764 | unsigned int si; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1765 | |
Mark Lord | eb73d55 | 2008-01-29 13:24:00 -0500 | [diff] [blame] | 1766 | mv_sg = pp->sg_tbl[qc->tag]; |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 1767 | for_each_sg(qc->sg, sg, qc->n_elem, si) { |
Jeff Garzik | d88184f | 2007-02-26 01:26:06 -0500 | [diff] [blame] | 1768 | dma_addr_t addr = sg_dma_address(sg); |
| 1769 | u32 sg_len = sg_dma_len(sg); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1770 | |
Olof Johansson | 4007b49 | 2007-10-02 20:45:27 -0500 | [diff] [blame] | 1771 | while (sg_len) { |
| 1772 | u32 offset = addr & 0xffff; |
| 1773 | u32 len = sg_len; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1774 | |
Mark Lord | 32cd11a | 2009-02-01 16:50:32 -0500 | [diff] [blame] | 1775 | if (offset + len > 0x10000) |
Olof Johansson | 4007b49 | 2007-10-02 20:45:27 -0500 | [diff] [blame] | 1776 | len = 0x10000 - offset; |
Jeff Garzik | 972c26b | 2005-10-18 22:14:54 -0400 | [diff] [blame] | 1777 | |
Olof Johansson | 4007b49 | 2007-10-02 20:45:27 -0500 | [diff] [blame] | 1778 | mv_sg->addr = cpu_to_le32(addr & 0xffffffff); |
| 1779 | mv_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16); |
Jeff Garzik | 6c08772 | 2007-10-12 00:16:23 -0400 | [diff] [blame] | 1780 | mv_sg->flags_size = cpu_to_le32(len & 0xffff); |
Mark Lord | 32cd11a | 2009-02-01 16:50:32 -0500 | [diff] [blame] | 1781 | mv_sg->reserved = 0; |
Olof Johansson | 4007b49 | 2007-10-02 20:45:27 -0500 | [diff] [blame] | 1782 | |
| 1783 | sg_len -= len; |
| 1784 | addr += len; |
| 1785 | |
Jeff Garzik | 3be6cbd | 2007-10-18 16:21:18 -0400 | [diff] [blame] | 1786 | last_sg = mv_sg; |
Olof Johansson | 4007b49 | 2007-10-02 20:45:27 -0500 | [diff] [blame] | 1787 | mv_sg++; |
Olof Johansson | 4007b49 | 2007-10-02 20:45:27 -0500 | [diff] [blame] | 1788 | } |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1789 | } |
Jeff Garzik | 3be6cbd | 2007-10-18 16:21:18 -0400 | [diff] [blame] | 1790 | |
| 1791 | if (likely(last_sg)) |
| 1792 | last_sg->flags_size |= cpu_to_le32(EPRD_FLAG_END_OF_TBL); |
Mark Lord | 32cd11a | 2009-02-01 16:50:32 -0500 | [diff] [blame] | 1793 | mb(); /* ensure data structure is visible to the chipset */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1794 | } |
| 1795 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1796 | static void mv_crqb_pack_cmd(__le16 *cmdw, u8 data, u8 addr, unsigned last) |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1797 | { |
Mark Lord | 559eeda | 2006-05-19 16:40:15 -0400 | [diff] [blame] | 1798 | u16 tmp = data | (addr << CRQB_CMD_ADDR_SHIFT) | CRQB_CMD_CS | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1799 | (last ? CRQB_CMD_LAST : 0); |
Mark Lord | 559eeda | 2006-05-19 16:40:15 -0400 | [diff] [blame] | 1800 | *cmdw = cpu_to_le16(tmp); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1801 | } |
| 1802 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1803 | /** |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 1804 | * mv_sff_irq_clear - Clear hardware interrupt after DMA. |
| 1805 | * @ap: Port associated with this ATA transaction. |
| 1806 | * |
| 1807 | * We need this only for ATAPI bmdma transactions, |
| 1808 | * as otherwise we experience spurious interrupts |
| 1809 | * after libata-sff handles the bmdma interrupts. |
| 1810 | */ |
| 1811 | static void mv_sff_irq_clear(struct ata_port *ap) |
| 1812 | { |
| 1813 | mv_clear_and_enable_port_irqs(ap, mv_ap_base(ap), ERR_IRQ); |
| 1814 | } |
| 1815 | |
| 1816 | /** |
| 1817 | * mv_check_atapi_dma - Filter ATAPI cmds which are unsuitable for DMA. |
| 1818 | * @qc: queued command to check for chipset/DMA compatibility. |
| 1819 | * |
| 1820 | * The bmdma engines cannot handle speculative data sizes |
| 1821 | * (bytecount under/over flow). So only allow DMA for |
| 1822 | * data transfer commands with known data sizes. |
| 1823 | * |
| 1824 | * LOCKING: |
| 1825 | * Inherited from caller. |
| 1826 | */ |
| 1827 | static int mv_check_atapi_dma(struct ata_queued_cmd *qc) |
| 1828 | { |
| 1829 | struct scsi_cmnd *scmd = qc->scsicmd; |
| 1830 | |
| 1831 | if (scmd) { |
| 1832 | switch (scmd->cmnd[0]) { |
| 1833 | case READ_6: |
| 1834 | case READ_10: |
| 1835 | case READ_12: |
| 1836 | case WRITE_6: |
| 1837 | case WRITE_10: |
| 1838 | case WRITE_12: |
| 1839 | case GPCMD_READ_CD: |
| 1840 | case GPCMD_SEND_DVD_STRUCTURE: |
| 1841 | case GPCMD_SEND_CUE_SHEET: |
| 1842 | return 0; /* DMA is safe */ |
| 1843 | } |
| 1844 | } |
| 1845 | return -EOPNOTSUPP; /* use PIO instead */ |
| 1846 | } |
| 1847 | |
| 1848 | /** |
| 1849 | * mv_bmdma_setup - Set up BMDMA transaction |
| 1850 | * @qc: queued command to prepare DMA for. |
| 1851 | * |
| 1852 | * LOCKING: |
| 1853 | * Inherited from caller. |
| 1854 | */ |
| 1855 | static void mv_bmdma_setup(struct ata_queued_cmd *qc) |
| 1856 | { |
| 1857 | struct ata_port *ap = qc->ap; |
| 1858 | void __iomem *port_mmio = mv_ap_base(ap); |
| 1859 | struct mv_port_priv *pp = ap->private_data; |
| 1860 | |
| 1861 | mv_fill_sg(qc); |
| 1862 | |
| 1863 | /* clear all DMA cmd bits */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1864 | writel(0, port_mmio + BMDMA_CMD); |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 1865 | |
| 1866 | /* load PRD table addr. */ |
| 1867 | writel((pp->sg_tbl_dma[qc->tag] >> 16) >> 16, |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1868 | port_mmio + BMDMA_PRD_HIGH); |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 1869 | writelfl(pp->sg_tbl_dma[qc->tag], |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1870 | port_mmio + BMDMA_PRD_LOW); |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 1871 | |
| 1872 | /* issue r/w command */ |
| 1873 | ap->ops->sff_exec_command(ap, &qc->tf); |
| 1874 | } |
| 1875 | |
| 1876 | /** |
| 1877 | * mv_bmdma_start - Start a BMDMA transaction |
| 1878 | * @qc: queued command to start DMA on. |
| 1879 | * |
| 1880 | * LOCKING: |
| 1881 | * Inherited from caller. |
| 1882 | */ |
| 1883 | static void mv_bmdma_start(struct ata_queued_cmd *qc) |
| 1884 | { |
| 1885 | struct ata_port *ap = qc->ap; |
| 1886 | void __iomem *port_mmio = mv_ap_base(ap); |
| 1887 | unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE); |
| 1888 | u32 cmd = (rw ? 0 : ATA_DMA_WR) | ATA_DMA_START; |
| 1889 | |
| 1890 | /* start host DMA transaction */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1891 | writelfl(cmd, port_mmio + BMDMA_CMD); |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 1892 | } |
| 1893 | |
| 1894 | /** |
| 1895 | * mv_bmdma_stop - Stop BMDMA transfer |
| 1896 | * @qc: queued command to stop DMA on. |
| 1897 | * |
| 1898 | * Clears the ATA_DMA_START flag in the bmdma control register |
| 1899 | * |
| 1900 | * LOCKING: |
| 1901 | * Inherited from caller. |
| 1902 | */ |
| 1903 | static void mv_bmdma_stop(struct ata_queued_cmd *qc) |
| 1904 | { |
| 1905 | struct ata_port *ap = qc->ap; |
| 1906 | void __iomem *port_mmio = mv_ap_base(ap); |
| 1907 | u32 cmd; |
| 1908 | |
| 1909 | /* clear start/stop bit */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1910 | cmd = readl(port_mmio + BMDMA_CMD); |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 1911 | cmd &= ~ATA_DMA_START; |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1912 | writelfl(cmd, port_mmio + BMDMA_CMD); |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 1913 | |
| 1914 | /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */ |
| 1915 | ata_sff_dma_pause(ap); |
| 1916 | } |
| 1917 | |
| 1918 | /** |
| 1919 | * mv_bmdma_status - Read BMDMA status |
| 1920 | * @ap: port for which to retrieve DMA status. |
| 1921 | * |
| 1922 | * Read and return equivalent of the sff BMDMA status register. |
| 1923 | * |
| 1924 | * LOCKING: |
| 1925 | * Inherited from caller. |
| 1926 | */ |
| 1927 | static u8 mv_bmdma_status(struct ata_port *ap) |
| 1928 | { |
| 1929 | void __iomem *port_mmio = mv_ap_base(ap); |
| 1930 | u32 reg, status; |
| 1931 | |
| 1932 | /* |
| 1933 | * Other bits are valid only if ATA_DMA_ACTIVE==0, |
| 1934 | * and the ATA_DMA_INTR bit doesn't exist. |
| 1935 | */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 1936 | reg = readl(port_mmio + BMDMA_STATUS); |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 1937 | if (reg & ATA_DMA_ACTIVE) |
| 1938 | status = ATA_DMA_ACTIVE; |
| 1939 | else |
| 1940 | status = (reg & ATA_DMA_ERR) | ATA_DMA_INTR; |
| 1941 | return status; |
| 1942 | } |
| 1943 | |
Mark Lord | 299b3f8 | 2009-04-13 11:29:34 -0400 | [diff] [blame] | 1944 | static void mv_rw_multi_errata_sata24(struct ata_queued_cmd *qc) |
| 1945 | { |
| 1946 | struct ata_taskfile *tf = &qc->tf; |
| 1947 | /* |
| 1948 | * Workaround for 88SX60x1 FEr SATA#24. |
| 1949 | * |
| 1950 | * Chip may corrupt WRITEs if multi_count >= 4kB. |
| 1951 | * Note that READs are unaffected. |
| 1952 | * |
| 1953 | * It's not clear if this errata really means "4K bytes", |
| 1954 | * or if it always happens for multi_count > 7 |
| 1955 | * regardless of device sector_size. |
| 1956 | * |
| 1957 | * So, for safety, any write with multi_count > 7 |
| 1958 | * gets converted here into a regular PIO write instead: |
| 1959 | */ |
| 1960 | if ((tf->flags & ATA_TFLAG_WRITE) && is_multi_taskfile(tf)) { |
| 1961 | if (qc->dev->multi_count > 7) { |
| 1962 | switch (tf->command) { |
| 1963 | case ATA_CMD_WRITE_MULTI: |
| 1964 | tf->command = ATA_CMD_PIO_WRITE; |
| 1965 | break; |
| 1966 | case ATA_CMD_WRITE_MULTI_FUA_EXT: |
| 1967 | tf->flags &= ~ATA_TFLAG_FUA; /* ugh */ |
| 1968 | /* fall through */ |
| 1969 | case ATA_CMD_WRITE_MULTI_EXT: |
| 1970 | tf->command = ATA_CMD_PIO_WRITE_EXT; |
| 1971 | break; |
| 1972 | } |
| 1973 | } |
| 1974 | } |
| 1975 | } |
| 1976 | |
Mark Lord | da14265 | 2009-01-30 18:51:54 -0500 | [diff] [blame] | 1977 | /** |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 1978 | * mv_qc_prep - Host specific command preparation. |
| 1979 | * @qc: queued command to prepare |
| 1980 | * |
| 1981 | * This routine simply redirects to the general purpose routine |
| 1982 | * if command is not DMA. Else, it handles prep of the CRQB |
| 1983 | * (command request block), does some sanity checking, and calls |
| 1984 | * the SG load routine. |
| 1985 | * |
| 1986 | * LOCKING: |
| 1987 | * Inherited from caller. |
| 1988 | */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1989 | static void mv_qc_prep(struct ata_queued_cmd *qc) |
| 1990 | { |
| 1991 | struct ata_port *ap = qc->ap; |
| 1992 | struct mv_port_priv *pp = ap->private_data; |
Mark Lord | e146987 | 2006-05-22 19:02:03 -0400 | [diff] [blame] | 1993 | __le16 *cw; |
Mark Lord | 8d2b450 | 2009-04-13 11:27:18 -0400 | [diff] [blame] | 1994 | struct ata_taskfile *tf = &qc->tf; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1995 | u16 flags = 0; |
Mark Lord | a643243 | 2006-05-19 16:36:36 -0400 | [diff] [blame] | 1996 | unsigned in_index; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 1997 | |
Mark Lord | 299b3f8 | 2009-04-13 11:29:34 -0400 | [diff] [blame] | 1998 | switch (tf->protocol) { |
| 1999 | case ATA_PROT_DMA: |
| 2000 | case ATA_PROT_NCQ: |
| 2001 | break; /* continue below */ |
| 2002 | case ATA_PROT_PIO: |
| 2003 | mv_rw_multi_errata_sata24(qc); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2004 | return; |
Mark Lord | 299b3f8 | 2009-04-13 11:29:34 -0400 | [diff] [blame] | 2005 | default: |
| 2006 | return; |
| 2007 | } |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2008 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2009 | /* Fill in command request block |
| 2010 | */ |
Mark Lord | 8d2b450 | 2009-04-13 11:27:18 -0400 | [diff] [blame] | 2011 | if (!(tf->flags & ATA_TFLAG_WRITE)) |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2012 | flags |= CRQB_FLAG_READ; |
Tejun Heo | beec7db | 2006-02-11 19:11:13 +0900 | [diff] [blame] | 2013 | WARN_ON(MV_MAX_Q_DEPTH <= qc->tag); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2014 | flags |= qc->tag << CRQB_TAG_SHIFT; |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 2015 | flags |= (qc->dev->link->pmp & 0xf) << CRQB_PMP_SHIFT; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2016 | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2017 | /* get current queue index from software */ |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2018 | in_index = pp->req_idx; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2019 | |
Mark Lord | a643243 | 2006-05-19 16:36:36 -0400 | [diff] [blame] | 2020 | pp->crqb[in_index].sg_addr = |
Mark Lord | eb73d55 | 2008-01-29 13:24:00 -0500 | [diff] [blame] | 2021 | cpu_to_le32(pp->sg_tbl_dma[qc->tag] & 0xffffffff); |
Mark Lord | a643243 | 2006-05-19 16:36:36 -0400 | [diff] [blame] | 2022 | pp->crqb[in_index].sg_addr_hi = |
Mark Lord | eb73d55 | 2008-01-29 13:24:00 -0500 | [diff] [blame] | 2023 | cpu_to_le32((pp->sg_tbl_dma[qc->tag] >> 16) >> 16); |
Mark Lord | a643243 | 2006-05-19 16:36:36 -0400 | [diff] [blame] | 2024 | pp->crqb[in_index].ctrl_flags = cpu_to_le16(flags); |
| 2025 | |
| 2026 | cw = &pp->crqb[in_index].ata_cmd[0]; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2027 | |
| 2028 | /* Sadly, the CRQB cannot accomodate all registers--there are |
| 2029 | * only 11 bytes...so we must pick and choose required |
| 2030 | * registers based on the command. So, we drop feature and |
| 2031 | * hob_feature for [RW] DMA commands, but they are needed for |
Mark Lord | cd12e1f | 2009-01-19 18:06:28 -0500 | [diff] [blame] | 2032 | * NCQ. NCQ will drop hob_nsect, which is not needed there |
| 2033 | * (nsect is used only for the tag; feat/hob_feat hold true nsect). |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2034 | */ |
| 2035 | switch (tf->command) { |
| 2036 | case ATA_CMD_READ: |
| 2037 | case ATA_CMD_READ_EXT: |
| 2038 | case ATA_CMD_WRITE: |
| 2039 | case ATA_CMD_WRITE_EXT: |
Jens Axboe | c15d85c | 2006-02-15 15:59:25 +0100 | [diff] [blame] | 2040 | case ATA_CMD_WRITE_FUA_EXT: |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2041 | mv_crqb_pack_cmd(cw++, tf->hob_nsect, ATA_REG_NSECT, 0); |
| 2042 | break; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2043 | case ATA_CMD_FPDMA_READ: |
| 2044 | case ATA_CMD_FPDMA_WRITE: |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 2045 | mv_crqb_pack_cmd(cw++, tf->hob_feature, ATA_REG_FEATURE, 0); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2046 | mv_crqb_pack_cmd(cw++, tf->feature, ATA_REG_FEATURE, 0); |
| 2047 | break; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2048 | default: |
| 2049 | /* The only other commands EDMA supports in non-queued and |
| 2050 | * non-NCQ mode are: [RW] STREAM DMA and W DMA FUA EXT, none |
| 2051 | * of which are defined/used by Linux. If we get here, this |
| 2052 | * driver needs work. |
| 2053 | * |
| 2054 | * FIXME: modify libata to give qc_prep a return value and |
| 2055 | * return error here. |
| 2056 | */ |
| 2057 | BUG_ON(tf->command); |
| 2058 | break; |
| 2059 | } |
| 2060 | mv_crqb_pack_cmd(cw++, tf->nsect, ATA_REG_NSECT, 0); |
| 2061 | mv_crqb_pack_cmd(cw++, tf->hob_lbal, ATA_REG_LBAL, 0); |
| 2062 | mv_crqb_pack_cmd(cw++, tf->lbal, ATA_REG_LBAL, 0); |
| 2063 | mv_crqb_pack_cmd(cw++, tf->hob_lbam, ATA_REG_LBAM, 0); |
| 2064 | mv_crqb_pack_cmd(cw++, tf->lbam, ATA_REG_LBAM, 0); |
| 2065 | mv_crqb_pack_cmd(cw++, tf->hob_lbah, ATA_REG_LBAH, 0); |
| 2066 | mv_crqb_pack_cmd(cw++, tf->lbah, ATA_REG_LBAH, 0); |
| 2067 | mv_crqb_pack_cmd(cw++, tf->device, ATA_REG_DEVICE, 0); |
| 2068 | mv_crqb_pack_cmd(cw++, tf->command, ATA_REG_CMD, 1); /* last */ |
| 2069 | |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 2070 | if (!(qc->flags & ATA_QCFLAG_DMAMAP)) |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2071 | return; |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 2072 | mv_fill_sg(qc); |
| 2073 | } |
| 2074 | |
| 2075 | /** |
| 2076 | * mv_qc_prep_iie - Host specific command preparation. |
| 2077 | * @qc: queued command to prepare |
| 2078 | * |
| 2079 | * This routine simply redirects to the general purpose routine |
| 2080 | * if command is not DMA. Else, it handles prep of the CRQB |
| 2081 | * (command request block), does some sanity checking, and calls |
| 2082 | * the SG load routine. |
| 2083 | * |
| 2084 | * LOCKING: |
| 2085 | * Inherited from caller. |
| 2086 | */ |
| 2087 | static void mv_qc_prep_iie(struct ata_queued_cmd *qc) |
| 2088 | { |
| 2089 | struct ata_port *ap = qc->ap; |
| 2090 | struct mv_port_priv *pp = ap->private_data; |
| 2091 | struct mv_crqb_iie *crqb; |
Mark Lord | 8d2b450 | 2009-04-13 11:27:18 -0400 | [diff] [blame] | 2092 | struct ata_taskfile *tf = &qc->tf; |
Mark Lord | a643243 | 2006-05-19 16:36:36 -0400 | [diff] [blame] | 2093 | unsigned in_index; |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 2094 | u32 flags = 0; |
| 2095 | |
Mark Lord | 8d2b450 | 2009-04-13 11:27:18 -0400 | [diff] [blame] | 2096 | if ((tf->protocol != ATA_PROT_DMA) && |
| 2097 | (tf->protocol != ATA_PROT_NCQ)) |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 2098 | return; |
| 2099 | |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 2100 | /* Fill in Gen IIE command request block */ |
Mark Lord | 8d2b450 | 2009-04-13 11:27:18 -0400 | [diff] [blame] | 2101 | if (!(tf->flags & ATA_TFLAG_WRITE)) |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 2102 | flags |= CRQB_FLAG_READ; |
| 2103 | |
Tejun Heo | beec7db | 2006-02-11 19:11:13 +0900 | [diff] [blame] | 2104 | WARN_ON(MV_MAX_Q_DEPTH <= qc->tag); |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 2105 | flags |= qc->tag << CRQB_TAG_SHIFT; |
Mark Lord | 8c0aeb4 | 2008-01-26 18:31:48 -0500 | [diff] [blame] | 2106 | flags |= qc->tag << CRQB_HOSTQ_SHIFT; |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 2107 | flags |= (qc->dev->link->pmp & 0xf) << CRQB_PMP_SHIFT; |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 2108 | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2109 | /* get current queue index from software */ |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2110 | in_index = pp->req_idx; |
Mark Lord | a643243 | 2006-05-19 16:36:36 -0400 | [diff] [blame] | 2111 | |
| 2112 | crqb = (struct mv_crqb_iie *) &pp->crqb[in_index]; |
Mark Lord | eb73d55 | 2008-01-29 13:24:00 -0500 | [diff] [blame] | 2113 | crqb->addr = cpu_to_le32(pp->sg_tbl_dma[qc->tag] & 0xffffffff); |
| 2114 | crqb->addr_hi = cpu_to_le32((pp->sg_tbl_dma[qc->tag] >> 16) >> 16); |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 2115 | crqb->flags = cpu_to_le32(flags); |
| 2116 | |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 2117 | crqb->ata_cmd[0] = cpu_to_le32( |
| 2118 | (tf->command << 16) | |
| 2119 | (tf->feature << 24) |
| 2120 | ); |
| 2121 | crqb->ata_cmd[1] = cpu_to_le32( |
| 2122 | (tf->lbal << 0) | |
| 2123 | (tf->lbam << 8) | |
| 2124 | (tf->lbah << 16) | |
| 2125 | (tf->device << 24) |
| 2126 | ); |
| 2127 | crqb->ata_cmd[2] = cpu_to_le32( |
| 2128 | (tf->hob_lbal << 0) | |
| 2129 | (tf->hob_lbam << 8) | |
| 2130 | (tf->hob_lbah << 16) | |
| 2131 | (tf->hob_feature << 24) |
| 2132 | ); |
| 2133 | crqb->ata_cmd[3] = cpu_to_le32( |
| 2134 | (tf->nsect << 0) | |
| 2135 | (tf->hob_nsect << 8) |
| 2136 | ); |
| 2137 | |
| 2138 | if (!(qc->flags & ATA_QCFLAG_DMAMAP)) |
| 2139 | return; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2140 | mv_fill_sg(qc); |
| 2141 | } |
| 2142 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2143 | /** |
Mark Lord | d16ab3f | 2009-02-25 15:17:43 -0500 | [diff] [blame] | 2144 | * mv_sff_check_status - fetch device status, if valid |
| 2145 | * @ap: ATA port to fetch status from |
| 2146 | * |
| 2147 | * When using command issue via mv_qc_issue_fis(), |
| 2148 | * the initial ATA_BUSY state does not show up in the |
| 2149 | * ATA status (shadow) register. This can confuse libata! |
| 2150 | * |
| 2151 | * So we have a hook here to fake ATA_BUSY for that situation, |
| 2152 | * until the first time a BUSY, DRQ, or ERR bit is seen. |
| 2153 | * |
| 2154 | * The rest of the time, it simply returns the ATA status register. |
| 2155 | */ |
| 2156 | static u8 mv_sff_check_status(struct ata_port *ap) |
| 2157 | { |
| 2158 | u8 stat = ioread8(ap->ioaddr.status_addr); |
| 2159 | struct mv_port_priv *pp = ap->private_data; |
| 2160 | |
| 2161 | if (pp->pp_flags & MV_PP_FLAG_FAKE_ATA_BUSY) { |
| 2162 | if (stat & (ATA_BUSY | ATA_DRQ | ATA_ERR)) |
| 2163 | pp->pp_flags &= ~MV_PP_FLAG_FAKE_ATA_BUSY; |
| 2164 | else |
| 2165 | stat = ATA_BUSY; |
| 2166 | } |
| 2167 | return stat; |
| 2168 | } |
| 2169 | |
| 2170 | /** |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2171 | * mv_send_fis - Send a FIS, using the "Vendor-Unique FIS" register |
| 2172 | * @fis: fis to be sent |
| 2173 | * @nwords: number of 32-bit words in the fis |
| 2174 | */ |
| 2175 | static unsigned int mv_send_fis(struct ata_port *ap, u32 *fis, int nwords) |
| 2176 | { |
| 2177 | void __iomem *port_mmio = mv_ap_base(ap); |
| 2178 | u32 ifctl, old_ifctl, ifstat; |
| 2179 | int i, timeout = 200, final_word = nwords - 1; |
| 2180 | |
| 2181 | /* Initiate FIS transmission mode */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2182 | old_ifctl = readl(port_mmio + SATA_IFCTL); |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2183 | ifctl = 0x100 | (old_ifctl & 0xf); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2184 | writelfl(ifctl, port_mmio + SATA_IFCTL); |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2185 | |
| 2186 | /* Send all words of the FIS except for the final word */ |
| 2187 | for (i = 0; i < final_word; ++i) |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2188 | writel(fis[i], port_mmio + VENDOR_UNIQUE_FIS); |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2189 | |
| 2190 | /* Flag end-of-transmission, and then send the final word */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2191 | writelfl(ifctl | 0x200, port_mmio + SATA_IFCTL); |
| 2192 | writelfl(fis[final_word], port_mmio + VENDOR_UNIQUE_FIS); |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2193 | |
| 2194 | /* |
| 2195 | * Wait for FIS transmission to complete. |
| 2196 | * This typically takes just a single iteration. |
| 2197 | */ |
| 2198 | do { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2199 | ifstat = readl(port_mmio + SATA_IFSTAT); |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2200 | } while (!(ifstat & 0x1000) && --timeout); |
| 2201 | |
| 2202 | /* Restore original port configuration */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2203 | writelfl(old_ifctl, port_mmio + SATA_IFCTL); |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2204 | |
| 2205 | /* See if it worked */ |
| 2206 | if ((ifstat & 0x3000) != 0x1000) { |
| 2207 | ata_port_printk(ap, KERN_WARNING, |
| 2208 | "%s transmission error, ifstat=%08x\n", |
| 2209 | __func__, ifstat); |
| 2210 | return AC_ERR_OTHER; |
| 2211 | } |
| 2212 | return 0; |
| 2213 | } |
| 2214 | |
| 2215 | /** |
| 2216 | * mv_qc_issue_fis - Issue a command directly as a FIS |
| 2217 | * @qc: queued command to start |
| 2218 | * |
| 2219 | * Note that the ATA shadow registers are not updated |
| 2220 | * after command issue, so the device will appear "READY" |
| 2221 | * if polled, even while it is BUSY processing the command. |
| 2222 | * |
| 2223 | * So we use a status hook to fake ATA_BUSY until the drive changes state. |
| 2224 | * |
| 2225 | * Note: we don't get updated shadow regs on *completion* |
| 2226 | * of non-data commands. So avoid sending them via this function, |
| 2227 | * as they will appear to have completed immediately. |
| 2228 | * |
| 2229 | * GEN_IIE has special registers that we could get the result tf from, |
| 2230 | * but earlier chipsets do not. For now, we ignore those registers. |
| 2231 | */ |
| 2232 | static unsigned int mv_qc_issue_fis(struct ata_queued_cmd *qc) |
| 2233 | { |
| 2234 | struct ata_port *ap = qc->ap; |
| 2235 | struct mv_port_priv *pp = ap->private_data; |
| 2236 | struct ata_link *link = qc->dev->link; |
| 2237 | u32 fis[5]; |
| 2238 | int err = 0; |
| 2239 | |
| 2240 | ata_tf_to_fis(&qc->tf, link->pmp, 1, (void *)fis); |
Thiago Farina | 4c4a90f | 2009-11-08 14:30:57 -0500 | [diff] [blame] | 2241 | err = mv_send_fis(ap, fis, ARRAY_SIZE(fis)); |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2242 | if (err) |
| 2243 | return err; |
| 2244 | |
| 2245 | switch (qc->tf.protocol) { |
| 2246 | case ATAPI_PROT_PIO: |
| 2247 | pp->pp_flags |= MV_PP_FLAG_FAKE_ATA_BUSY; |
| 2248 | /* fall through */ |
| 2249 | case ATAPI_PROT_NODATA: |
| 2250 | ap->hsm_task_state = HSM_ST_FIRST; |
| 2251 | break; |
| 2252 | case ATA_PROT_PIO: |
| 2253 | pp->pp_flags |= MV_PP_FLAG_FAKE_ATA_BUSY; |
| 2254 | if (qc->tf.flags & ATA_TFLAG_WRITE) |
| 2255 | ap->hsm_task_state = HSM_ST_FIRST; |
| 2256 | else |
| 2257 | ap->hsm_task_state = HSM_ST; |
| 2258 | break; |
| 2259 | default: |
| 2260 | ap->hsm_task_state = HSM_ST_LAST; |
| 2261 | break; |
| 2262 | } |
| 2263 | |
| 2264 | if (qc->tf.flags & ATA_TFLAG_POLLING) |
Tejun Heo | c429137 | 2010-05-10 21:41:38 +0200 | [diff] [blame] | 2265 | ata_sff_queue_pio_task(ap, 0); |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2266 | return 0; |
| 2267 | } |
| 2268 | |
| 2269 | /** |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2270 | * mv_qc_issue - Initiate a command to the host |
| 2271 | * @qc: queued command to start |
| 2272 | * |
| 2273 | * This routine simply redirects to the general purpose routine |
| 2274 | * if command is not DMA. Else, it sanity checks our local |
| 2275 | * caches of the request producer/consumer indices then enables |
| 2276 | * DMA and bumps the request producer index. |
| 2277 | * |
| 2278 | * LOCKING: |
| 2279 | * Inherited from caller. |
| 2280 | */ |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 2281 | static unsigned int mv_qc_issue(struct ata_queued_cmd *qc) |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2282 | { |
Mark Lord | f48765c | 2009-01-30 18:48:41 -0500 | [diff] [blame] | 2283 | static int limit_warnings = 10; |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 2284 | struct ata_port *ap = qc->ap; |
| 2285 | void __iomem *port_mmio = mv_ap_base(ap); |
| 2286 | struct mv_port_priv *pp = ap->private_data; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2287 | u32 in_index; |
Mark Lord | 42ed893 | 2009-02-25 15:15:39 -0500 | [diff] [blame] | 2288 | unsigned int port_irqs; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2289 | |
Mark Lord | d16ab3f | 2009-02-25 15:17:43 -0500 | [diff] [blame] | 2290 | pp->pp_flags &= ~MV_PP_FLAG_FAKE_ATA_BUSY; /* paranoia */ |
| 2291 | |
Mark Lord | f48765c | 2009-01-30 18:48:41 -0500 | [diff] [blame] | 2292 | switch (qc->tf.protocol) { |
| 2293 | case ATA_PROT_DMA: |
| 2294 | case ATA_PROT_NCQ: |
| 2295 | mv_start_edma(ap, port_mmio, pp, qc->tf.protocol); |
| 2296 | pp->req_idx = (pp->req_idx + 1) & MV_MAX_Q_DEPTH_MASK; |
| 2297 | in_index = pp->req_idx << EDMA_REQ_Q_PTR_SHIFT; |
| 2298 | |
| 2299 | /* Write the request in pointer to kick the EDMA to life */ |
| 2300 | writelfl((pp->crqb_dma & EDMA_REQ_Q_BASE_LO_MASK) | in_index, |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2301 | port_mmio + EDMA_REQ_Q_IN_PTR); |
Mark Lord | f48765c | 2009-01-30 18:48:41 -0500 | [diff] [blame] | 2302 | return 0; |
| 2303 | |
| 2304 | case ATA_PROT_PIO: |
Mark Lord | c6112bd | 2008-06-18 12:13:02 -0400 | [diff] [blame] | 2305 | /* |
| 2306 | * Errata SATA#16, SATA#24: warn if multiple DRQs expected. |
| 2307 | * |
| 2308 | * Someday, we might implement special polling workarounds |
| 2309 | * for these, but it all seems rather unnecessary since we |
| 2310 | * normally use only DMA for commands which transfer more |
| 2311 | * than a single block of data. |
| 2312 | * |
| 2313 | * Much of the time, this could just work regardless. |
| 2314 | * So for now, just log the incident, and allow the attempt. |
| 2315 | */ |
Mark Lord | c7843e8 | 2008-06-18 21:57:42 -0400 | [diff] [blame] | 2316 | if (limit_warnings > 0 && (qc->nbytes / qc->sect_size) > 1) { |
Mark Lord | c6112bd | 2008-06-18 12:13:02 -0400 | [diff] [blame] | 2317 | --limit_warnings; |
| 2318 | ata_link_printk(qc->dev->link, KERN_WARNING, DRV_NAME |
| 2319 | ": attempting PIO w/multiple DRQ: " |
| 2320 | "this may fail due to h/w errata\n"); |
| 2321 | } |
Mark Lord | f48765c | 2009-01-30 18:48:41 -0500 | [diff] [blame] | 2322 | /* drop through */ |
Mark Lord | 42ed893 | 2009-02-25 15:15:39 -0500 | [diff] [blame] | 2323 | case ATA_PROT_NODATA: |
Mark Lord | f48765c | 2009-01-30 18:48:41 -0500 | [diff] [blame] | 2324 | case ATAPI_PROT_PIO: |
Mark Lord | 42ed893 | 2009-02-25 15:15:39 -0500 | [diff] [blame] | 2325 | case ATAPI_PROT_NODATA: |
| 2326 | if (ap->flags & ATA_FLAG_PIO_POLLING) |
| 2327 | qc->tf.flags |= ATA_TFLAG_POLLING; |
| 2328 | break; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2329 | } |
Mark Lord | 42ed893 | 2009-02-25 15:15:39 -0500 | [diff] [blame] | 2330 | |
| 2331 | if (qc->tf.flags & ATA_TFLAG_POLLING) |
| 2332 | port_irqs = ERR_IRQ; /* mask device interrupt when polling */ |
| 2333 | else |
| 2334 | port_irqs = ERR_IRQ | DONE_IRQ; /* unmask all interrupts */ |
| 2335 | |
| 2336 | /* |
| 2337 | * We're about to send a non-EDMA capable command to the |
| 2338 | * port. Turn off EDMA so there won't be problems accessing |
| 2339 | * shadow block, etc registers. |
| 2340 | */ |
| 2341 | mv_stop_edma(ap); |
| 2342 | mv_clear_and_enable_port_irqs(ap, mv_ap_base(ap), port_irqs); |
| 2343 | mv_pmp_select(ap, qc->dev->link->pmp); |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2344 | |
| 2345 | if (qc->tf.command == ATA_CMD_READ_LOG_EXT) { |
| 2346 | struct mv_host_priv *hpriv = ap->host->private_data; |
| 2347 | /* |
| 2348 | * Workaround for 88SX60x1 FEr SATA#25 (part 2). |
Mark Lord | 40f21b1 | 2009-03-10 18:51:04 -0400 | [diff] [blame] | 2349 | * |
Mark Lord | 70f8b79 | 2009-02-25 15:19:20 -0500 | [diff] [blame] | 2350 | * After any NCQ error, the READ_LOG_EXT command |
| 2351 | * from libata-eh *must* use mv_qc_issue_fis(). |
| 2352 | * Otherwise it might fail, due to chip errata. |
| 2353 | * |
| 2354 | * Rather than special-case it, we'll just *always* |
| 2355 | * use this method here for READ_LOG_EXT, making for |
| 2356 | * easier testing. |
| 2357 | */ |
| 2358 | if (IS_GEN_II(hpriv)) |
| 2359 | return mv_qc_issue_fis(qc); |
| 2360 | } |
Tejun Heo | 360ff78 | 2010-05-10 21:41:42 +0200 | [diff] [blame] | 2361 | return ata_bmdma_qc_issue(qc); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2362 | } |
| 2363 | |
Mark Lord | 8f767f8 | 2008-04-19 14:53:07 -0400 | [diff] [blame] | 2364 | static struct ata_queued_cmd *mv_get_active_qc(struct ata_port *ap) |
| 2365 | { |
| 2366 | struct mv_port_priv *pp = ap->private_data; |
| 2367 | struct ata_queued_cmd *qc; |
| 2368 | |
| 2369 | if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) |
| 2370 | return NULL; |
| 2371 | qc = ata_qc_from_tag(ap, ap->link.active_tag); |
Tejun Heo | 3e4ec34 | 2010-05-10 21:41:30 +0200 | [diff] [blame] | 2372 | if (qc && !(qc->tf.flags & ATA_TFLAG_POLLING)) |
| 2373 | return qc; |
| 2374 | return NULL; |
Mark Lord | 8f767f8 | 2008-04-19 14:53:07 -0400 | [diff] [blame] | 2375 | } |
| 2376 | |
Mark Lord | 29d187b | 2008-05-02 02:15:37 -0400 | [diff] [blame] | 2377 | static void mv_pmp_error_handler(struct ata_port *ap) |
| 2378 | { |
| 2379 | unsigned int pmp, pmp_map; |
| 2380 | struct mv_port_priv *pp = ap->private_data; |
| 2381 | |
| 2382 | if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) { |
| 2383 | /* |
| 2384 | * Perform NCQ error analysis on failed PMPs |
| 2385 | * before we freeze the port entirely. |
| 2386 | * |
| 2387 | * The failed PMPs are marked earlier by mv_pmp_eh_prep(). |
| 2388 | */ |
| 2389 | pmp_map = pp->delayed_eh_pmp_map; |
| 2390 | pp->pp_flags &= ~MV_PP_FLAG_DELAYED_EH; |
| 2391 | for (pmp = 0; pmp_map != 0; pmp++) { |
| 2392 | unsigned int this_pmp = (1 << pmp); |
| 2393 | if (pmp_map & this_pmp) { |
| 2394 | struct ata_link *link = &ap->pmp_link[pmp]; |
| 2395 | pmp_map &= ~this_pmp; |
| 2396 | ata_eh_analyze_ncq_error(link); |
| 2397 | } |
| 2398 | } |
| 2399 | ata_port_freeze(ap); |
| 2400 | } |
| 2401 | sata_pmp_error_handler(ap); |
| 2402 | } |
| 2403 | |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 2404 | static unsigned int mv_get_err_pmp_map(struct ata_port *ap) |
| 2405 | { |
| 2406 | void __iomem *port_mmio = mv_ap_base(ap); |
| 2407 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2408 | return readl(port_mmio + SATA_TESTCTL) >> 16; |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 2409 | } |
| 2410 | |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 2411 | static void mv_pmp_eh_prep(struct ata_port *ap, unsigned int pmp_map) |
| 2412 | { |
| 2413 | struct ata_eh_info *ehi; |
| 2414 | unsigned int pmp; |
| 2415 | |
| 2416 | /* |
| 2417 | * Initialize EH info for PMPs which saw device errors |
| 2418 | */ |
| 2419 | ehi = &ap->link.eh_info; |
| 2420 | for (pmp = 0; pmp_map != 0; pmp++) { |
| 2421 | unsigned int this_pmp = (1 << pmp); |
| 2422 | if (pmp_map & this_pmp) { |
| 2423 | struct ata_link *link = &ap->pmp_link[pmp]; |
| 2424 | |
| 2425 | pmp_map &= ~this_pmp; |
| 2426 | ehi = &link->eh_info; |
| 2427 | ata_ehi_clear_desc(ehi); |
| 2428 | ata_ehi_push_desc(ehi, "dev err"); |
| 2429 | ehi->err_mask |= AC_ERR_DEV; |
| 2430 | ehi->action |= ATA_EH_RESET; |
| 2431 | ata_link_abort(link); |
| 2432 | } |
| 2433 | } |
| 2434 | } |
| 2435 | |
Mark Lord | 06aaca3 | 2008-05-19 09:01:24 -0400 | [diff] [blame] | 2436 | static int mv_req_q_empty(struct ata_port *ap) |
| 2437 | { |
| 2438 | void __iomem *port_mmio = mv_ap_base(ap); |
| 2439 | u32 in_ptr, out_ptr; |
| 2440 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2441 | in_ptr = (readl(port_mmio + EDMA_REQ_Q_IN_PTR) |
Mark Lord | 06aaca3 | 2008-05-19 09:01:24 -0400 | [diff] [blame] | 2442 | >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK; |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2443 | out_ptr = (readl(port_mmio + EDMA_REQ_Q_OUT_PTR) |
Mark Lord | 06aaca3 | 2008-05-19 09:01:24 -0400 | [diff] [blame] | 2444 | >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK; |
| 2445 | return (in_ptr == out_ptr); /* 1 == queue_is_empty */ |
| 2446 | } |
| 2447 | |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 2448 | static int mv_handle_fbs_ncq_dev_err(struct ata_port *ap) |
| 2449 | { |
| 2450 | struct mv_port_priv *pp = ap->private_data; |
| 2451 | int failed_links; |
| 2452 | unsigned int old_map, new_map; |
| 2453 | |
| 2454 | /* |
| 2455 | * Device error during FBS+NCQ operation: |
| 2456 | * |
| 2457 | * Set a port flag to prevent further I/O being enqueued. |
| 2458 | * Leave the EDMA running to drain outstanding commands from this port. |
| 2459 | * Perform the post-mortem/EH only when all responses are complete. |
| 2460 | * Follow recovery sequence from 6042/7042 datasheet (7.3.15.4.2.2). |
| 2461 | */ |
| 2462 | if (!(pp->pp_flags & MV_PP_FLAG_DELAYED_EH)) { |
| 2463 | pp->pp_flags |= MV_PP_FLAG_DELAYED_EH; |
| 2464 | pp->delayed_eh_pmp_map = 0; |
| 2465 | } |
| 2466 | old_map = pp->delayed_eh_pmp_map; |
| 2467 | new_map = old_map | mv_get_err_pmp_map(ap); |
| 2468 | |
| 2469 | if (old_map != new_map) { |
| 2470 | pp->delayed_eh_pmp_map = new_map; |
| 2471 | mv_pmp_eh_prep(ap, new_map & ~old_map); |
| 2472 | } |
Mark Lord | c46938c | 2008-05-02 14:02:28 -0400 | [diff] [blame] | 2473 | failed_links = hweight16(new_map); |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 2474 | |
| 2475 | ata_port_printk(ap, KERN_INFO, "%s: pmp_map=%04x qc_map=%04x " |
| 2476 | "failed_links=%d nr_active_links=%d\n", |
| 2477 | __func__, pp->delayed_eh_pmp_map, |
| 2478 | ap->qc_active, failed_links, |
| 2479 | ap->nr_active_links); |
| 2480 | |
Mark Lord | 06aaca3 | 2008-05-19 09:01:24 -0400 | [diff] [blame] | 2481 | if (ap->nr_active_links <= failed_links && mv_req_q_empty(ap)) { |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 2482 | mv_process_crpb_entries(ap, pp); |
| 2483 | mv_stop_edma(ap); |
| 2484 | mv_eh_freeze(ap); |
| 2485 | ata_port_printk(ap, KERN_INFO, "%s: done\n", __func__); |
| 2486 | return 1; /* handled */ |
| 2487 | } |
| 2488 | ata_port_printk(ap, KERN_INFO, "%s: waiting\n", __func__); |
| 2489 | return 1; /* handled */ |
| 2490 | } |
| 2491 | |
| 2492 | static int mv_handle_fbs_non_ncq_dev_err(struct ata_port *ap) |
| 2493 | { |
| 2494 | /* |
| 2495 | * Possible future enhancement: |
| 2496 | * |
| 2497 | * FBS+non-NCQ operation is not yet implemented. |
| 2498 | * See related notes in mv_edma_cfg(). |
| 2499 | * |
| 2500 | * Device error during FBS+non-NCQ operation: |
| 2501 | * |
| 2502 | * We need to snapshot the shadow registers for each failed command. |
| 2503 | * Follow recovery sequence from 6042/7042 datasheet (7.3.15.4.2.3). |
| 2504 | */ |
| 2505 | return 0; /* not handled */ |
| 2506 | } |
| 2507 | |
| 2508 | static int mv_handle_dev_err(struct ata_port *ap, u32 edma_err_cause) |
| 2509 | { |
| 2510 | struct mv_port_priv *pp = ap->private_data; |
| 2511 | |
| 2512 | if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) |
| 2513 | return 0; /* EDMA was not active: not handled */ |
| 2514 | if (!(pp->pp_flags & MV_PP_FLAG_FBS_EN)) |
| 2515 | return 0; /* FBS was not active: not handled */ |
| 2516 | |
| 2517 | if (!(edma_err_cause & EDMA_ERR_DEV)) |
| 2518 | return 0; /* non DEV error: not handled */ |
| 2519 | edma_err_cause &= ~EDMA_ERR_IRQ_TRANSIENT; |
| 2520 | if (edma_err_cause & ~(EDMA_ERR_DEV | EDMA_ERR_SELF_DIS)) |
| 2521 | return 0; /* other problems: not handled */ |
| 2522 | |
| 2523 | if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) { |
| 2524 | /* |
| 2525 | * EDMA should NOT have self-disabled for this case. |
| 2526 | * If it did, then something is wrong elsewhere, |
| 2527 | * and we cannot handle it here. |
| 2528 | */ |
| 2529 | if (edma_err_cause & EDMA_ERR_SELF_DIS) { |
| 2530 | ata_port_printk(ap, KERN_WARNING, |
| 2531 | "%s: err_cause=0x%x pp_flags=0x%x\n", |
| 2532 | __func__, edma_err_cause, pp->pp_flags); |
| 2533 | return 0; /* not handled */ |
| 2534 | } |
| 2535 | return mv_handle_fbs_ncq_dev_err(ap); |
| 2536 | } else { |
| 2537 | /* |
| 2538 | * EDMA should have self-disabled for this case. |
| 2539 | * If it did not, then something is wrong elsewhere, |
| 2540 | * and we cannot handle it here. |
| 2541 | */ |
| 2542 | if (!(edma_err_cause & EDMA_ERR_SELF_DIS)) { |
| 2543 | ata_port_printk(ap, KERN_WARNING, |
| 2544 | "%s: err_cause=0x%x pp_flags=0x%x\n", |
| 2545 | __func__, edma_err_cause, pp->pp_flags); |
| 2546 | return 0; /* not handled */ |
| 2547 | } |
| 2548 | return mv_handle_fbs_non_ncq_dev_err(ap); |
| 2549 | } |
| 2550 | return 0; /* not handled */ |
| 2551 | } |
| 2552 | |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2553 | static void mv_unexpected_intr(struct ata_port *ap, int edma_was_enabled) |
Mark Lord | 8f767f8 | 2008-04-19 14:53:07 -0400 | [diff] [blame] | 2554 | { |
Mark Lord | 8f767f8 | 2008-04-19 14:53:07 -0400 | [diff] [blame] | 2555 | struct ata_eh_info *ehi = &ap->link.eh_info; |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2556 | char *when = "idle"; |
Mark Lord | 8f767f8 | 2008-04-19 14:53:07 -0400 | [diff] [blame] | 2557 | |
Mark Lord | 8f767f8 | 2008-04-19 14:53:07 -0400 | [diff] [blame] | 2558 | ata_ehi_clear_desc(ehi); |
Tejun Heo | 3e4ec34 | 2010-05-10 21:41:30 +0200 | [diff] [blame] | 2559 | if (edma_was_enabled) { |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2560 | when = "EDMA enabled"; |
Mark Lord | 8f767f8 | 2008-04-19 14:53:07 -0400 | [diff] [blame] | 2561 | } else { |
| 2562 | struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag); |
| 2563 | if (qc && (qc->tf.flags & ATA_TFLAG_POLLING)) |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2564 | when = "polling"; |
Mark Lord | 8f767f8 | 2008-04-19 14:53:07 -0400 | [diff] [blame] | 2565 | } |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2566 | ata_ehi_push_desc(ehi, "unexpected device interrupt while %s", when); |
Mark Lord | 8f767f8 | 2008-04-19 14:53:07 -0400 | [diff] [blame] | 2567 | ehi->err_mask |= AC_ERR_OTHER; |
| 2568 | ehi->action |= ATA_EH_RESET; |
| 2569 | ata_port_freeze(ap); |
| 2570 | } |
| 2571 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2572 | /** |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2573 | * mv_err_intr - Handle error interrupts on the port |
| 2574 | * @ap: ATA channel to manipulate |
| 2575 | * |
Mark Lord | 8d07379 | 2008-04-19 15:07:49 -0400 | [diff] [blame] | 2576 | * Most cases require a full reset of the chip's state machine, |
| 2577 | * which also performs a COMRESET. |
| 2578 | * Also, if the port disabled DMA, update our cached copy to match. |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2579 | * |
| 2580 | * LOCKING: |
| 2581 | * Inherited from caller. |
| 2582 | */ |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2583 | static void mv_err_intr(struct ata_port *ap) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2584 | { |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 2585 | void __iomem *port_mmio = mv_ap_base(ap); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2586 | u32 edma_err_cause, eh_freeze_mask, serr = 0; |
Mark Lord | e400607 | 2008-05-14 09:19:30 -0400 | [diff] [blame] | 2587 | u32 fis_cause = 0; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2588 | struct mv_port_priv *pp = ap->private_data; |
| 2589 | struct mv_host_priv *hpriv = ap->host->private_data; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2590 | unsigned int action = 0, err_mask = 0; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 2591 | struct ata_eh_info *ehi = &ap->link.eh_info; |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2592 | struct ata_queued_cmd *qc; |
| 2593 | int abort = 0; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2594 | |
Mark Lord | 8d07379 | 2008-04-19 15:07:49 -0400 | [diff] [blame] | 2595 | /* |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2596 | * Read and clear the SError and err_cause bits. |
Mark Lord | e400607 | 2008-05-14 09:19:30 -0400 | [diff] [blame] | 2597 | * For GenIIe, if EDMA_ERR_TRANS_IRQ_7 is set, we also must read/clear |
| 2598 | * the FIS_IRQ_CAUSE register before clearing edma_err_cause. |
Mark Lord | 8d07379 | 2008-04-19 15:07:49 -0400 | [diff] [blame] | 2599 | */ |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2600 | sata_scr_read(&ap->link, SCR_ERROR, &serr); |
| 2601 | sata_scr_write_flush(&ap->link, SCR_ERROR, serr); |
| 2602 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2603 | edma_err_cause = readl(port_mmio + EDMA_ERR_IRQ_CAUSE); |
Mark Lord | e400607 | 2008-05-14 09:19:30 -0400 | [diff] [blame] | 2604 | if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7)) { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2605 | fis_cause = readl(port_mmio + FIS_IRQ_CAUSE); |
| 2606 | writelfl(~fis_cause, port_mmio + FIS_IRQ_CAUSE); |
Mark Lord | e400607 | 2008-05-14 09:19:30 -0400 | [diff] [blame] | 2607 | } |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2608 | writelfl(~edma_err_cause, port_mmio + EDMA_ERR_IRQ_CAUSE); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2609 | |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 2610 | if (edma_err_cause & EDMA_ERR_DEV) { |
| 2611 | /* |
| 2612 | * Device errors during FIS-based switching operation |
| 2613 | * require special handling. |
| 2614 | */ |
| 2615 | if (mv_handle_dev_err(ap, edma_err_cause)) |
| 2616 | return; |
| 2617 | } |
| 2618 | |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2619 | qc = mv_get_active_qc(ap); |
| 2620 | ata_ehi_clear_desc(ehi); |
| 2621 | ata_ehi_push_desc(ehi, "edma_err_cause=%08x pp_flags=%08x", |
| 2622 | edma_err_cause, pp->pp_flags); |
Mark Lord | e400607 | 2008-05-14 09:19:30 -0400 | [diff] [blame] | 2623 | |
Mark Lord | c443c50 | 2008-05-14 09:24:39 -0400 | [diff] [blame] | 2624 | if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7)) { |
Mark Lord | e400607 | 2008-05-14 09:19:30 -0400 | [diff] [blame] | 2625 | ata_ehi_push_desc(ehi, "fis_cause=%08x", fis_cause); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2626 | if (fis_cause & FIS_IRQ_CAUSE_AN) { |
Mark Lord | c443c50 | 2008-05-14 09:24:39 -0400 | [diff] [blame] | 2627 | u32 ec = edma_err_cause & |
| 2628 | ~(EDMA_ERR_TRANS_IRQ_7 | EDMA_ERR_IRQ_TRANSIENT); |
| 2629 | sata_async_notification(ap); |
| 2630 | if (!ec) |
| 2631 | return; /* Just an AN; no need for the nukes */ |
| 2632 | ata_ehi_push_desc(ehi, "SDB notify"); |
| 2633 | } |
| 2634 | } |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2635 | /* |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 2636 | * All generations share these EDMA error cause bits: |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2637 | */ |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2638 | if (edma_err_cause & EDMA_ERR_DEV) { |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2639 | err_mask |= AC_ERR_DEV; |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2640 | action |= ATA_EH_RESET; |
| 2641 | ata_ehi_push_desc(ehi, "dev error"); |
| 2642 | } |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2643 | if (edma_err_cause & (EDMA_ERR_D_PAR | EDMA_ERR_PRD_PAR | |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 2644 | EDMA_ERR_CRQB_PAR | EDMA_ERR_CRPB_PAR | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2645 | EDMA_ERR_INTRL_PAR)) { |
| 2646 | err_mask |= AC_ERR_ATA_BUS; |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 2647 | action |= ATA_EH_RESET; |
Tejun Heo | b64bbc3 | 2007-07-16 14:29:39 +0900 | [diff] [blame] | 2648 | ata_ehi_push_desc(ehi, "parity error"); |
Brett Russ | afb0edd | 2005-10-05 17:08:42 -0400 | [diff] [blame] | 2649 | } |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2650 | if (edma_err_cause & (EDMA_ERR_DEV_DCON | EDMA_ERR_DEV_CON)) { |
| 2651 | ata_ehi_hotplugged(ehi); |
| 2652 | ata_ehi_push_desc(ehi, edma_err_cause & EDMA_ERR_DEV_DCON ? |
Tejun Heo | b64bbc3 | 2007-07-16 14:29:39 +0900 | [diff] [blame] | 2653 | "dev disconnect" : "dev connect"); |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 2654 | action |= ATA_EH_RESET; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2655 | } |
| 2656 | |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 2657 | /* |
| 2658 | * Gen-I has a different SELF_DIS bit, |
| 2659 | * different FREEZE bits, and no SERR bit: |
| 2660 | */ |
Jeff Garzik | ee9ccdf | 2007-07-12 15:51:22 -0400 | [diff] [blame] | 2661 | if (IS_GEN_I(hpriv)) { |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2662 | eh_freeze_mask = EDMA_EH_FREEZE_5; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2663 | if (edma_err_cause & EDMA_ERR_SELF_DIS_5) { |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2664 | pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN; |
Tejun Heo | b64bbc3 | 2007-07-16 14:29:39 +0900 | [diff] [blame] | 2665 | ata_ehi_push_desc(ehi, "EDMA self-disable"); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2666 | } |
| 2667 | } else { |
| 2668 | eh_freeze_mask = EDMA_EH_FREEZE; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2669 | if (edma_err_cause & EDMA_ERR_SELF_DIS) { |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2670 | pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN; |
Tejun Heo | b64bbc3 | 2007-07-16 14:29:39 +0900 | [diff] [blame] | 2671 | ata_ehi_push_desc(ehi, "EDMA self-disable"); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2672 | } |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2673 | if (edma_err_cause & EDMA_ERR_SERR) { |
Mark Lord | 8d07379 | 2008-04-19 15:07:49 -0400 | [diff] [blame] | 2674 | ata_ehi_push_desc(ehi, "SError=%08x", serr); |
| 2675 | err_mask |= AC_ERR_ATA_BUS; |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 2676 | action |= ATA_EH_RESET; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2677 | } |
| 2678 | } |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2679 | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2680 | if (!err_mask) { |
| 2681 | err_mask = AC_ERR_OTHER; |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 2682 | action |= ATA_EH_RESET; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2683 | } |
| 2684 | |
| 2685 | ehi->serror |= serr; |
| 2686 | ehi->action |= action; |
| 2687 | |
| 2688 | if (qc) |
| 2689 | qc->err_mask |= err_mask; |
| 2690 | else |
| 2691 | ehi->err_mask |= err_mask; |
| 2692 | |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2693 | if (err_mask == AC_ERR_DEV) { |
| 2694 | /* |
| 2695 | * Cannot do ata_port_freeze() here, |
| 2696 | * because it would kill PIO access, |
| 2697 | * which is needed for further diagnosis. |
| 2698 | */ |
| 2699 | mv_eh_freeze(ap); |
| 2700 | abort = 1; |
| 2701 | } else if (edma_err_cause & eh_freeze_mask) { |
| 2702 | /* |
| 2703 | * Note to self: ata_port_freeze() calls ata_port_abort() |
| 2704 | */ |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2705 | ata_port_freeze(ap); |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2706 | } else { |
| 2707 | abort = 1; |
| 2708 | } |
| 2709 | |
| 2710 | if (abort) { |
| 2711 | if (qc) |
| 2712 | ata_link_abort(qc->dev->link); |
| 2713 | else |
| 2714 | ata_port_abort(ap); |
| 2715 | } |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2716 | } |
| 2717 | |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2718 | static void mv_process_crpb_response(struct ata_port *ap, |
| 2719 | struct mv_crpb *response, unsigned int tag, int ncq_enabled) |
| 2720 | { |
| 2721 | struct ata_queued_cmd *qc = ata_qc_from_tag(ap, tag); |
| 2722 | |
| 2723 | if (qc) { |
| 2724 | u8 ata_status; |
| 2725 | u16 edma_status = le16_to_cpu(response->flags); |
| 2726 | /* |
| 2727 | * edma_status from a response queue entry: |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2728 | * LSB is from EDMA_ERR_IRQ_CAUSE (non-NCQ only). |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2729 | * MSB is saved ATA status from command completion. |
| 2730 | */ |
| 2731 | if (!ncq_enabled) { |
| 2732 | u8 err_cause = edma_status & 0xff & ~EDMA_ERR_DEV; |
| 2733 | if (err_cause) { |
| 2734 | /* |
| 2735 | * Error will be seen/handled by mv_err_intr(). |
| 2736 | * So do nothing at all here. |
| 2737 | */ |
| 2738 | return; |
| 2739 | } |
| 2740 | } |
| 2741 | ata_status = edma_status >> CRPB_FLAG_STATUS_SHIFT; |
Mark Lord | 37b9046 | 2008-05-02 02:12:34 -0400 | [diff] [blame] | 2742 | if (!ac_err_mask(ata_status)) |
| 2743 | ata_qc_complete(qc); |
| 2744 | /* else: leave it for mv_err_intr() */ |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2745 | } else { |
| 2746 | ata_port_printk(ap, KERN_ERR, "%s: no qc for tag=%d\n", |
| 2747 | __func__, tag); |
| 2748 | } |
| 2749 | } |
| 2750 | |
| 2751 | static void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp) |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2752 | { |
| 2753 | void __iomem *port_mmio = mv_ap_base(ap); |
| 2754 | struct mv_host_priv *hpriv = ap->host->private_data; |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2755 | u32 in_index; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2756 | bool work_done = false; |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2757 | int ncq_enabled = (pp->pp_flags & MV_PP_FLAG_NCQ_EN); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2758 | |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2759 | /* Get the hardware queue position index */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2760 | in_index = (readl(port_mmio + EDMA_RSP_Q_IN_PTR) |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2761 | >> EDMA_RSP_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK; |
| 2762 | |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2763 | /* Process new responses from since the last time we looked */ |
| 2764 | while (in_index != pp->resp_idx) { |
Jeff Garzik | 6c1153e | 2007-07-13 15:20:15 -0400 | [diff] [blame] | 2765 | unsigned int tag; |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2766 | struct mv_crpb *response = &pp->crpb[pp->resp_idx]; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2767 | |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2768 | pp->resp_idx = (pp->resp_idx + 1) & MV_MAX_Q_DEPTH_MASK; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2769 | |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2770 | if (IS_GEN_I(hpriv)) { |
| 2771 | /* 50xx: no NCQ, only one command active at a time */ |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 2772 | tag = ap->link.active_tag; |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2773 | } else { |
| 2774 | /* Gen II/IIE: get command tag from CRPB entry */ |
| 2775 | tag = le16_to_cpu(response->id) & 0x1f; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2776 | } |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2777 | mv_process_crpb_response(ap, response, tag, ncq_enabled); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2778 | work_done = true; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2779 | } |
| 2780 | |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 2781 | /* Update the software queue position index in hardware */ |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2782 | if (work_done) |
| 2783 | writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) | |
Mark Lord | fcfb1f7 | 2008-04-19 15:06:40 -0400 | [diff] [blame] | 2784 | (pp->resp_idx << EDMA_RSP_Q_PTR_SHIFT), |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2785 | port_mmio + EDMA_RSP_Q_OUT_PTR); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2786 | } |
| 2787 | |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2788 | static void mv_port_intr(struct ata_port *ap, u32 port_cause) |
| 2789 | { |
| 2790 | struct mv_port_priv *pp; |
| 2791 | int edma_was_enabled; |
| 2792 | |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2793 | /* |
| 2794 | * Grab a snapshot of the EDMA_EN flag setting, |
| 2795 | * so that we have a consistent view for this port, |
| 2796 | * even if something we call of our routines changes it. |
| 2797 | */ |
| 2798 | pp = ap->private_data; |
| 2799 | edma_was_enabled = (pp->pp_flags & MV_PP_FLAG_EDMA_EN); |
| 2800 | /* |
| 2801 | * Process completed CRPB response(s) before other events. |
| 2802 | */ |
| 2803 | if (edma_was_enabled && (port_cause & DONE_IRQ)) { |
| 2804 | mv_process_crpb_entries(ap, pp); |
Mark Lord | 4c299ca | 2008-05-02 02:16:20 -0400 | [diff] [blame] | 2805 | if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) |
| 2806 | mv_handle_fbs_ncq_dev_err(ap); |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2807 | } |
| 2808 | /* |
| 2809 | * Handle chip-reported errors, or continue on to handle PIO. |
| 2810 | */ |
| 2811 | if (unlikely(port_cause & ERR_IRQ)) { |
| 2812 | mv_err_intr(ap); |
| 2813 | } else if (!edma_was_enabled) { |
| 2814 | struct ata_queued_cmd *qc = mv_get_active_qc(ap); |
| 2815 | if (qc) |
| 2816 | ata_sff_host_intr(ap, qc); |
| 2817 | else |
| 2818 | mv_unexpected_intr(ap, edma_was_enabled); |
| 2819 | } |
| 2820 | } |
| 2821 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2822 | /** |
| 2823 | * mv_host_intr - Handle all interrupts on the given host controller |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 2824 | * @host: host specific structure |
Mark Lord | 7368f91 | 2008-04-25 11:24:24 -0400 | [diff] [blame] | 2825 | * @main_irq_cause: Main interrupt cause register for the chip. |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2826 | * |
| 2827 | * LOCKING: |
| 2828 | * Inherited from caller. |
| 2829 | */ |
Mark Lord | 7368f91 | 2008-04-25 11:24:24 -0400 | [diff] [blame] | 2830 | static int mv_host_intr(struct ata_host *host, u32 main_irq_cause) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2831 | { |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 2832 | struct mv_host_priv *hpriv = host->private_data; |
Mark Lord | eabd5eb | 2008-05-02 02:13:27 -0400 | [diff] [blame] | 2833 | void __iomem *mmio = hpriv->base, *hc_mmio; |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2834 | unsigned int handled = 0, port; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2835 | |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 2836 | /* If asserted, clear the "all ports" IRQ coalescing bit */ |
| 2837 | if (main_irq_cause & ALL_PORTS_COAL_DONE) |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2838 | writel(~ALL_PORTS_COAL_IRQ, mmio + IRQ_COAL_CAUSE); |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 2839 | |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2840 | for (port = 0; port < hpriv->n_ports; port++) { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 2841 | struct ata_port *ap = host->ports[port]; |
Mark Lord | eabd5eb | 2008-05-02 02:13:27 -0400 | [diff] [blame] | 2842 | unsigned int p, shift, hardport, port_cause; |
| 2843 | |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2844 | MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport); |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2845 | /* |
Mark Lord | eabd5eb | 2008-05-02 02:13:27 -0400 | [diff] [blame] | 2846 | * Each hc within the host has its own hc_irq_cause register, |
| 2847 | * where the interrupting ports bits get ack'd. |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2848 | */ |
Mark Lord | eabd5eb | 2008-05-02 02:13:27 -0400 | [diff] [blame] | 2849 | if (hardport == 0) { /* first port on this hc ? */ |
| 2850 | u32 hc_cause = (main_irq_cause >> shift) & HC0_IRQ_PEND; |
| 2851 | u32 port_mask, ack_irqs; |
| 2852 | /* |
| 2853 | * Skip this entire hc if nothing pending for any ports |
| 2854 | */ |
| 2855 | if (!hc_cause) { |
| 2856 | port += MV_PORTS_PER_HC - 1; |
| 2857 | continue; |
| 2858 | } |
| 2859 | /* |
| 2860 | * We don't need/want to read the hc_irq_cause register, |
| 2861 | * because doing so hurts performance, and |
| 2862 | * main_irq_cause already gives us everything we need. |
| 2863 | * |
| 2864 | * But we do have to *write* to the hc_irq_cause to ack |
| 2865 | * the ports that we are handling this time through. |
| 2866 | * |
| 2867 | * This requires that we create a bitmap for those |
| 2868 | * ports which interrupted us, and use that bitmap |
| 2869 | * to ack (only) those ports via hc_irq_cause. |
| 2870 | */ |
| 2871 | ack_irqs = 0; |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 2872 | if (hc_cause & PORTS_0_3_COAL_DONE) |
| 2873 | ack_irqs = HC_COAL_IRQ; |
Mark Lord | eabd5eb | 2008-05-02 02:13:27 -0400 | [diff] [blame] | 2874 | for (p = 0; p < MV_PORTS_PER_HC; ++p) { |
| 2875 | if ((port + p) >= hpriv->n_ports) |
| 2876 | break; |
| 2877 | port_mask = (DONE_IRQ | ERR_IRQ) << (p * 2); |
| 2878 | if (hc_cause & port_mask) |
| 2879 | ack_irqs |= (DMA_IRQ | DEV_IRQ) << p; |
| 2880 | } |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2881 | hc_mmio = mv_hc_base_from_port(mmio, port); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2882 | writelfl(~ack_irqs, hc_mmio + HC_IRQ_CAUSE); |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2883 | handled = 1; |
| 2884 | } |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2885 | /* |
| 2886 | * Handle interrupts signalled for this port: |
| 2887 | */ |
Mark Lord | eabd5eb | 2008-05-02 02:13:27 -0400 | [diff] [blame] | 2888 | port_cause = (main_irq_cause >> shift) & (DONE_IRQ | ERR_IRQ); |
Mark Lord | a901032 | 2008-05-02 02:14:02 -0400 | [diff] [blame] | 2889 | if (port_cause) |
| 2890 | mv_port_intr(ap, port_cause); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2891 | } |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2892 | return handled; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2893 | } |
| 2894 | |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2895 | static int mv_pci_error(struct ata_host *host, void __iomem *mmio) |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2896 | { |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 2897 | struct mv_host_priv *hpriv = host->private_data; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2898 | struct ata_port *ap; |
| 2899 | struct ata_queued_cmd *qc; |
| 2900 | struct ata_eh_info *ehi; |
| 2901 | unsigned int i, err_mask, printed = 0; |
| 2902 | u32 err_cause; |
| 2903 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2904 | err_cause = readl(mmio + hpriv->irq_cause_offset); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2905 | |
| 2906 | dev_printk(KERN_ERR, host->dev, "PCI ERROR; PCI IRQ cause=0x%08x\n", |
| 2907 | err_cause); |
| 2908 | |
| 2909 | DPRINTK("All regs @ PCI error\n"); |
| 2910 | mv_dump_all_regs(mmio, -1, to_pci_dev(host->dev)); |
| 2911 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 2912 | writelfl(0, mmio + hpriv->irq_cause_offset); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2913 | |
| 2914 | for (i = 0; i < host->n_ports; i++) { |
| 2915 | ap = host->ports[i]; |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 2916 | if (!ata_link_offline(&ap->link)) { |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 2917 | ehi = &ap->link.eh_info; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2918 | ata_ehi_clear_desc(ehi); |
| 2919 | if (!printed++) |
| 2920 | ata_ehi_push_desc(ehi, |
| 2921 | "PCI err cause 0x%08x", err_cause); |
| 2922 | err_mask = AC_ERR_HOST_BUS; |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 2923 | ehi->action = ATA_EH_RESET; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 2924 | qc = ata_qc_from_tag(ap, ap->link.active_tag); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2925 | if (qc) |
| 2926 | qc->err_mask |= err_mask; |
| 2927 | else |
| 2928 | ehi->err_mask |= err_mask; |
| 2929 | |
| 2930 | ata_port_freeze(ap); |
| 2931 | } |
| 2932 | } |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2933 | return 1; /* handled */ |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2934 | } |
| 2935 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2936 | /** |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 2937 | * mv_interrupt - Main interrupt event handler |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2938 | * @irq: unused |
| 2939 | * @dev_instance: private data; in this case the host structure |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2940 | * |
| 2941 | * Read the read only register to determine if any host |
| 2942 | * controllers have pending interrupts. If so, call lower level |
| 2943 | * routine to handle. Also check for PCI errors which are only |
| 2944 | * reported here. |
| 2945 | * |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 2946 | * LOCKING: |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 2947 | * This routine holds the host lock while processing pending |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 2948 | * interrupts. |
| 2949 | */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 2950 | static irqreturn_t mv_interrupt(int irq, void *dev_instance) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2951 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 2952 | struct ata_host *host = dev_instance; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 2953 | struct mv_host_priv *hpriv = host->private_data; |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2954 | unsigned int handled = 0; |
Mark Lord | 6d3c30e | 2009-01-21 10:31:29 -0500 | [diff] [blame] | 2955 | int using_msi = hpriv->hp_flags & MV_HP_FLAG_MSI; |
Mark Lord | 96e2c487 | 2008-05-17 13:38:00 -0400 | [diff] [blame] | 2956 | u32 main_irq_cause, pending_irqs; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2957 | |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 2958 | spin_lock(&host->lock); |
Mark Lord | 6d3c30e | 2009-01-21 10:31:29 -0500 | [diff] [blame] | 2959 | |
| 2960 | /* for MSI: block new interrupts while in here */ |
| 2961 | if (using_msi) |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 2962 | mv_write_main_irq_mask(0, hpriv); |
Mark Lord | 6d3c30e | 2009-01-21 10:31:29 -0500 | [diff] [blame] | 2963 | |
Mark Lord | 7368f91 | 2008-04-25 11:24:24 -0400 | [diff] [blame] | 2964 | main_irq_cause = readl(hpriv->main_irq_cause_addr); |
Mark Lord | 96e2c487 | 2008-05-17 13:38:00 -0400 | [diff] [blame] | 2965 | pending_irqs = main_irq_cause & hpriv->main_irq_mask; |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 2966 | /* |
| 2967 | * Deal with cases where we either have nothing pending, or have read |
| 2968 | * a bogus register value which can indicate HW removal or PCI fault. |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2969 | */ |
Mark Lord | a44253d | 2008-05-17 13:37:07 -0400 | [diff] [blame] | 2970 | if (pending_irqs && main_irq_cause != 0xffffffffU) { |
Mark Lord | 1f39847 | 2008-05-27 17:54:48 -0400 | [diff] [blame] | 2971 | if (unlikely((pending_irqs & PCI_ERR) && !IS_SOC(hpriv))) |
Mark Lord | a3718c1 | 2008-04-19 15:07:18 -0400 | [diff] [blame] | 2972 | handled = mv_pci_error(host, hpriv->base); |
| 2973 | else |
Mark Lord | a44253d | 2008-05-17 13:37:07 -0400 | [diff] [blame] | 2974 | handled = mv_host_intr(host, pending_irqs); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 2975 | } |
Mark Lord | 6d3c30e | 2009-01-21 10:31:29 -0500 | [diff] [blame] | 2976 | |
| 2977 | /* for MSI: unmask; interrupt cause bits will retrigger now */ |
| 2978 | if (using_msi) |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 2979 | mv_write_main_irq_mask(hpriv->main_irq_mask, hpriv); |
Mark Lord | 6d3c30e | 2009-01-21 10:31:29 -0500 | [diff] [blame] | 2980 | |
Mark Lord | 9d51af7 | 2009-03-10 16:28:51 -0400 | [diff] [blame] | 2981 | spin_unlock(&host->lock); |
| 2982 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 2983 | return IRQ_RETVAL(handled); |
| 2984 | } |
| 2985 | |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 2986 | static unsigned int mv5_scr_offset(unsigned int sc_reg_in) |
| 2987 | { |
| 2988 | unsigned int ofs; |
| 2989 | |
| 2990 | switch (sc_reg_in) { |
| 2991 | case SCR_STATUS: |
| 2992 | case SCR_ERROR: |
| 2993 | case SCR_CONTROL: |
| 2994 | ofs = sc_reg_in * sizeof(u32); |
| 2995 | break; |
| 2996 | default: |
| 2997 | ofs = 0xffffffffU; |
| 2998 | break; |
| 2999 | } |
| 3000 | return ofs; |
| 3001 | } |
| 3002 | |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 3003 | static int mv5_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val) |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3004 | { |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 3005 | struct mv_host_priv *hpriv = link->ap->host->private_data; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3006 | void __iomem *mmio = hpriv->base; |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 3007 | void __iomem *addr = mv5_phy_base(mmio, link->ap->port_no); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3008 | unsigned int ofs = mv5_scr_offset(sc_reg_in); |
| 3009 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 3010 | if (ofs != 0xffffffffU) { |
| 3011 | *val = readl(addr + ofs); |
| 3012 | return 0; |
| 3013 | } else |
| 3014 | return -EINVAL; |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3015 | } |
| 3016 | |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 3017 | static int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val) |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3018 | { |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 3019 | struct mv_host_priv *hpriv = link->ap->host->private_data; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3020 | void __iomem *mmio = hpriv->base; |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 3021 | void __iomem *addr = mv5_phy_base(mmio, link->ap->port_no); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3022 | unsigned int ofs = mv5_scr_offset(sc_reg_in); |
| 3023 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 3024 | if (ofs != 0xffffffffU) { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 3025 | writelfl(val, addr + ofs); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 3026 | return 0; |
| 3027 | } else |
| 3028 | return -EINVAL; |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3029 | } |
| 3030 | |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 3031 | static void mv5_reset_bus(struct ata_host *host, void __iomem *mmio) |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 3032 | { |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 3033 | struct pci_dev *pdev = to_pci_dev(host->dev); |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 3034 | int early_5080; |
| 3035 | |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 3036 | early_5080 = (pdev->device == 0x5080) && (pdev->revision == 0); |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 3037 | |
| 3038 | if (!early_5080) { |
| 3039 | u32 tmp = readl(mmio + MV_PCI_EXP_ROM_BAR_CTL); |
| 3040 | tmp |= (1 << 0); |
| 3041 | writel(tmp, mmio + MV_PCI_EXP_ROM_BAR_CTL); |
| 3042 | } |
| 3043 | |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 3044 | mv_reset_pci_bus(host, mmio); |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 3045 | } |
| 3046 | |
| 3047 | static void mv5_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio) |
| 3048 | { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3049 | writel(0x0fcfffff, mmio + FLASH_CTL); |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 3050 | } |
| 3051 | |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3052 | static void mv5_read_preamp(struct mv_host_priv *hpriv, int idx, |
Jeff Garzik | ba3fe8f | 2005-11-12 19:08:48 -0500 | [diff] [blame] | 3053 | void __iomem *mmio) |
| 3054 | { |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3055 | void __iomem *phy_mmio = mv5_phy_base(mmio, idx); |
| 3056 | u32 tmp; |
| 3057 | |
| 3058 | tmp = readl(phy_mmio + MV5_PHY_MODE); |
| 3059 | |
| 3060 | hpriv->signal[idx].pre = tmp & 0x1800; /* bits 12:11 */ |
| 3061 | hpriv->signal[idx].amps = tmp & 0xe0; /* bits 7:5 */ |
Jeff Garzik | ba3fe8f | 2005-11-12 19:08:48 -0500 | [diff] [blame] | 3062 | } |
| 3063 | |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3064 | static void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio) |
Jeff Garzik | ba3fe8f | 2005-11-12 19:08:48 -0500 | [diff] [blame] | 3065 | { |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 3066 | u32 tmp; |
| 3067 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3068 | writel(0, mmio + GPIO_PORT_CTL); |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 3069 | |
| 3070 | /* FIXME: handle MV_HP_ERRATA_50XXB2 errata */ |
| 3071 | |
| 3072 | tmp = readl(mmio + MV_PCI_EXP_ROM_BAR_CTL); |
| 3073 | tmp |= ~(1 << 0); |
| 3074 | writel(tmp, mmio + MV_PCI_EXP_ROM_BAR_CTL); |
Jeff Garzik | ba3fe8f | 2005-11-12 19:08:48 -0500 | [diff] [blame] | 3075 | } |
| 3076 | |
Jeff Garzik | 2a47ce0 | 2005-11-12 23:05:14 -0500 | [diff] [blame] | 3077 | static void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 3078 | unsigned int port) |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3079 | { |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3080 | void __iomem *phy_mmio = mv5_phy_base(mmio, port); |
| 3081 | const u32 mask = (1<<12) | (1<<11) | (1<<7) | (1<<6) | (1<<5); |
| 3082 | u32 tmp; |
| 3083 | int fix_apm_sq = (hpriv->hp_flags & MV_HP_ERRATA_50XXB0); |
| 3084 | |
| 3085 | if (fix_apm_sq) { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3086 | tmp = readl(phy_mmio + MV5_LTMODE); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3087 | tmp |= (1 << 19); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3088 | writel(tmp, phy_mmio + MV5_LTMODE); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3089 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3090 | tmp = readl(phy_mmio + MV5_PHY_CTL); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3091 | tmp &= ~0x3; |
| 3092 | tmp |= 0x1; |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3093 | writel(tmp, phy_mmio + MV5_PHY_CTL); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3094 | } |
| 3095 | |
| 3096 | tmp = readl(phy_mmio + MV5_PHY_MODE); |
| 3097 | tmp &= ~mask; |
| 3098 | tmp |= hpriv->signal[port].pre; |
| 3099 | tmp |= hpriv->signal[port].amps; |
| 3100 | writel(tmp, phy_mmio + MV5_PHY_MODE); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3101 | } |
| 3102 | |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3103 | |
| 3104 | #undef ZERO |
| 3105 | #define ZERO(reg) writel(0, port_mmio + (reg)) |
| 3106 | static void mv5_reset_hc_port(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 3107 | unsigned int port) |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3108 | { |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3109 | void __iomem *port_mmio = mv_port_base(mmio, port); |
| 3110 | |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 3111 | mv_reset_channel(hpriv, mmio, port); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3112 | |
| 3113 | ZERO(0x028); /* command */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3114 | writel(0x11f, port_mmio + EDMA_CFG); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3115 | ZERO(0x004); /* timer */ |
| 3116 | ZERO(0x008); /* irq err cause */ |
| 3117 | ZERO(0x00c); /* irq err mask */ |
| 3118 | ZERO(0x010); /* rq bah */ |
| 3119 | ZERO(0x014); /* rq inp */ |
| 3120 | ZERO(0x018); /* rq outp */ |
| 3121 | ZERO(0x01c); /* respq bah */ |
| 3122 | ZERO(0x024); /* respq outp */ |
| 3123 | ZERO(0x020); /* respq inp */ |
| 3124 | ZERO(0x02c); /* test control */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3125 | writel(0xbc, port_mmio + EDMA_IORDY_TMOUT); |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3126 | } |
| 3127 | #undef ZERO |
| 3128 | |
| 3129 | #define ZERO(reg) writel(0, hc_mmio + (reg)) |
| 3130 | static void mv5_reset_one_hc(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 3131 | unsigned int hc) |
| 3132 | { |
| 3133 | void __iomem *hc_mmio = mv_hc_base(mmio, hc); |
| 3134 | u32 tmp; |
| 3135 | |
| 3136 | ZERO(0x00c); |
| 3137 | ZERO(0x010); |
| 3138 | ZERO(0x014); |
| 3139 | ZERO(0x018); |
| 3140 | |
| 3141 | tmp = readl(hc_mmio + 0x20); |
| 3142 | tmp &= 0x1c1c1c1c; |
| 3143 | tmp |= 0x03030303; |
| 3144 | writel(tmp, hc_mmio + 0x20); |
| 3145 | } |
| 3146 | #undef ZERO |
| 3147 | |
| 3148 | static int mv5_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 3149 | unsigned int n_hc) |
| 3150 | { |
| 3151 | unsigned int hc, port; |
| 3152 | |
| 3153 | for (hc = 0; hc < n_hc; hc++) { |
| 3154 | for (port = 0; port < MV_PORTS_PER_HC; port++) |
| 3155 | mv5_reset_hc_port(hpriv, mmio, |
| 3156 | (hc * MV_PORTS_PER_HC) + port); |
| 3157 | |
| 3158 | mv5_reset_one_hc(hpriv, mmio, hc); |
| 3159 | } |
| 3160 | |
| 3161 | return 0; |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3162 | } |
| 3163 | |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3164 | #undef ZERO |
| 3165 | #define ZERO(reg) writel(0, mmio + (reg)) |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 3166 | static void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio) |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3167 | { |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 3168 | struct mv_host_priv *hpriv = host->private_data; |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3169 | u32 tmp; |
| 3170 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3171 | tmp = readl(mmio + MV_PCI_MODE); |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3172 | tmp &= 0xff00ffff; |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3173 | writel(tmp, mmio + MV_PCI_MODE); |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3174 | |
| 3175 | ZERO(MV_PCI_DISC_TIMER); |
| 3176 | ZERO(MV_PCI_MSI_TRIGGER); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3177 | writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT); |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3178 | ZERO(MV_PCI_SERR_MASK); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3179 | ZERO(hpriv->irq_cause_offset); |
| 3180 | ZERO(hpriv->irq_mask_offset); |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3181 | ZERO(MV_PCI_ERR_LOW_ADDRESS); |
| 3182 | ZERO(MV_PCI_ERR_HIGH_ADDRESS); |
| 3183 | ZERO(MV_PCI_ERR_ATTRIBUTE); |
| 3184 | ZERO(MV_PCI_ERR_COMMAND); |
| 3185 | } |
| 3186 | #undef ZERO |
| 3187 | |
| 3188 | static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio) |
| 3189 | { |
| 3190 | u32 tmp; |
| 3191 | |
| 3192 | mv5_reset_flash(hpriv, mmio); |
| 3193 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3194 | tmp = readl(mmio + GPIO_PORT_CTL); |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3195 | tmp &= 0x3; |
| 3196 | tmp |= (1 << 5) | (1 << 6); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3197 | writel(tmp, mmio + GPIO_PORT_CTL); |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3198 | } |
| 3199 | |
| 3200 | /** |
| 3201 | * mv6_reset_hc - Perform the 6xxx global soft reset |
| 3202 | * @mmio: base address of the HBA |
| 3203 | * |
| 3204 | * This routine only applies to 6xxx parts. |
| 3205 | * |
| 3206 | * LOCKING: |
| 3207 | * Inherited from caller. |
| 3208 | */ |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3209 | static int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, |
| 3210 | unsigned int n_hc) |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3211 | { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3212 | void __iomem *reg = mmio + PCI_MAIN_CMD_STS; |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3213 | int i, rc = 0; |
| 3214 | u32 t; |
| 3215 | |
| 3216 | /* Following procedure defined in PCI "main command and status |
| 3217 | * register" table. |
| 3218 | */ |
| 3219 | t = readl(reg); |
| 3220 | writel(t | STOP_PCI_MASTER, reg); |
| 3221 | |
| 3222 | for (i = 0; i < 1000; i++) { |
| 3223 | udelay(1); |
| 3224 | t = readl(reg); |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 3225 | if (PCI_MASTER_EMPTY & t) |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3226 | break; |
Jeff Garzik | 101ffae | 2005-11-12 22:17:49 -0500 | [diff] [blame] | 3227 | } |
| 3228 | if (!(PCI_MASTER_EMPTY & t)) { |
| 3229 | printk(KERN_ERR DRV_NAME ": PCI master won't flush\n"); |
| 3230 | rc = 1; |
| 3231 | goto done; |
| 3232 | } |
| 3233 | |
| 3234 | /* set reset */ |
| 3235 | i = 5; |
| 3236 | do { |
| 3237 | writel(t | GLOB_SFT_RST, reg); |
| 3238 | t = readl(reg); |
| 3239 | udelay(1); |
| 3240 | } while (!(GLOB_SFT_RST & t) && (i-- > 0)); |
| 3241 | |
| 3242 | if (!(GLOB_SFT_RST & t)) { |
| 3243 | printk(KERN_ERR DRV_NAME ": can't set global reset\n"); |
| 3244 | rc = 1; |
| 3245 | goto done; |
| 3246 | } |
| 3247 | |
| 3248 | /* clear reset and *reenable the PCI master* (not mentioned in spec) */ |
| 3249 | i = 5; |
| 3250 | do { |
| 3251 | writel(t & ~(GLOB_SFT_RST | STOP_PCI_MASTER), reg); |
| 3252 | t = readl(reg); |
| 3253 | udelay(1); |
| 3254 | } while ((GLOB_SFT_RST & t) && (i-- > 0)); |
| 3255 | |
| 3256 | if (GLOB_SFT_RST & t) { |
| 3257 | printk(KERN_ERR DRV_NAME ": can't clear global reset\n"); |
| 3258 | rc = 1; |
| 3259 | } |
| 3260 | done: |
| 3261 | return rc; |
| 3262 | } |
| 3263 | |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3264 | static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx, |
Jeff Garzik | ba3fe8f | 2005-11-12 19:08:48 -0500 | [diff] [blame] | 3265 | void __iomem *mmio) |
| 3266 | { |
| 3267 | void __iomem *port_mmio; |
| 3268 | u32 tmp; |
| 3269 | |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3270 | tmp = readl(mmio + RESET_CFG); |
Jeff Garzik | ba3fe8f | 2005-11-12 19:08:48 -0500 | [diff] [blame] | 3271 | if ((tmp & (1 << 0)) == 0) { |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3272 | hpriv->signal[idx].amps = 0x7 << 8; |
Jeff Garzik | ba3fe8f | 2005-11-12 19:08:48 -0500 | [diff] [blame] | 3273 | hpriv->signal[idx].pre = 0x1 << 5; |
| 3274 | return; |
| 3275 | } |
| 3276 | |
| 3277 | port_mmio = mv_port_base(mmio, idx); |
| 3278 | tmp = readl(port_mmio + PHY_MODE2); |
| 3279 | |
| 3280 | hpriv->signal[idx].amps = tmp & 0x700; /* bits 10:8 */ |
| 3281 | hpriv->signal[idx].pre = tmp & 0xe0; /* bits 7:5 */ |
| 3282 | } |
| 3283 | |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3284 | static void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio) |
Jeff Garzik | ba3fe8f | 2005-11-12 19:08:48 -0500 | [diff] [blame] | 3285 | { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3286 | writel(0x00000060, mmio + GPIO_PORT_CTL); |
Jeff Garzik | ba3fe8f | 2005-11-12 19:08:48 -0500 | [diff] [blame] | 3287 | } |
| 3288 | |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3289 | static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, |
Jeff Garzik | 2a47ce0 | 2005-11-12 23:05:14 -0500 | [diff] [blame] | 3290 | unsigned int port) |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3291 | { |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3292 | void __iomem *port_mmio = mv_port_base(mmio, port); |
| 3293 | |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3294 | u32 hp_flags = hpriv->hp_flags; |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3295 | int fix_phy_mode2 = |
| 3296 | hp_flags & (MV_HP_ERRATA_60X1B2 | MV_HP_ERRATA_60X1C0); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3297 | int fix_phy_mode4 = |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3298 | hp_flags & (MV_HP_ERRATA_60X1B2 | MV_HP_ERRATA_60X1C0); |
Mark Lord | 8c30a8b | 2008-05-27 17:56:31 -0400 | [diff] [blame] | 3299 | u32 m2, m3; |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3300 | |
| 3301 | if (fix_phy_mode2) { |
| 3302 | m2 = readl(port_mmio + PHY_MODE2); |
| 3303 | m2 &= ~(1 << 16); |
| 3304 | m2 |= (1 << 31); |
| 3305 | writel(m2, port_mmio + PHY_MODE2); |
| 3306 | |
| 3307 | udelay(200); |
| 3308 | |
| 3309 | m2 = readl(port_mmio + PHY_MODE2); |
| 3310 | m2 &= ~((1 << 16) | (1 << 31)); |
| 3311 | writel(m2, port_mmio + PHY_MODE2); |
| 3312 | |
| 3313 | udelay(200); |
| 3314 | } |
| 3315 | |
Mark Lord | 8c30a8b | 2008-05-27 17:56:31 -0400 | [diff] [blame] | 3316 | /* |
| 3317 | * Gen-II/IIe PHY_MODE3 errata RM#2: |
| 3318 | * Achieves better receiver noise performance than the h/w default: |
| 3319 | */ |
| 3320 | m3 = readl(port_mmio + PHY_MODE3); |
| 3321 | m3 = (m3 & 0x1f) | (0x5555601 << 5); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3322 | |
Mark Lord | 0388a8c | 2008-05-28 13:41:52 -0400 | [diff] [blame] | 3323 | /* Guideline 88F5182 (GL# SATA-S11) */ |
| 3324 | if (IS_SOC(hpriv)) |
| 3325 | m3 &= ~0x1c; |
| 3326 | |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3327 | if (fix_phy_mode4) { |
Mark Lord | ba069e3 | 2008-05-31 16:46:34 -0400 | [diff] [blame] | 3328 | u32 m4 = readl(port_mmio + PHY_MODE4); |
| 3329 | /* |
| 3330 | * Enforce reserved-bit restrictions on GenIIe devices only. |
| 3331 | * For earlier chipsets, force only the internal config field |
| 3332 | * (workaround for errata FEr SATA#10 part 1). |
| 3333 | */ |
Mark Lord | 8c30a8b | 2008-05-27 17:56:31 -0400 | [diff] [blame] | 3334 | if (IS_GEN_IIE(hpriv)) |
Mark Lord | ba069e3 | 2008-05-31 16:46:34 -0400 | [diff] [blame] | 3335 | m4 = (m4 & ~PHY_MODE4_RSVD_ZEROS) | PHY_MODE4_RSVD_ONES; |
| 3336 | else |
| 3337 | m4 = (m4 & ~PHY_MODE4_CFG_MASK) | PHY_MODE4_CFG_VALUE; |
Mark Lord | 8c30a8b | 2008-05-27 17:56:31 -0400 | [diff] [blame] | 3338 | writel(m4, port_mmio + PHY_MODE4); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3339 | } |
Mark Lord | b406c7a | 2008-05-28 12:01:12 -0400 | [diff] [blame] | 3340 | /* |
| 3341 | * Workaround for 60x1-B2 errata SATA#13: |
| 3342 | * Any write to PHY_MODE4 (above) may corrupt PHY_MODE3, |
| 3343 | * so we must always rewrite PHY_MODE3 after PHY_MODE4. |
Mark Lord | ba68460 | 2009-04-06 15:25:39 -0400 | [diff] [blame] | 3344 | * Or ensure we use writelfl() when writing PHY_MODE4. |
Mark Lord | b406c7a | 2008-05-28 12:01:12 -0400 | [diff] [blame] | 3345 | */ |
| 3346 | writel(m3, port_mmio + PHY_MODE3); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3347 | |
| 3348 | /* Revert values of pre-emphasis and signal amps to the saved ones */ |
| 3349 | m2 = readl(port_mmio + PHY_MODE2); |
| 3350 | |
| 3351 | m2 &= ~MV_M2_PREAMP_MASK; |
Jeff Garzik | 2a47ce0 | 2005-11-12 23:05:14 -0500 | [diff] [blame] | 3352 | m2 |= hpriv->signal[port].amps; |
| 3353 | m2 |= hpriv->signal[port].pre; |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3354 | m2 &= ~(1 << 16); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3355 | |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 3356 | /* according to mvSata 3.6.1, some IIE values are fixed */ |
| 3357 | if (IS_GEN_IIE(hpriv)) { |
| 3358 | m2 &= ~0xC30FF01F; |
| 3359 | m2 |= 0x0000900F; |
| 3360 | } |
| 3361 | |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3362 | writel(m2, port_mmio + PHY_MODE2); |
| 3363 | } |
| 3364 | |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3365 | /* TODO: use the generic LED interface to configure the SATA Presence */ |
| 3366 | /* & Acitivy LEDs on the board */ |
| 3367 | static void mv_soc_enable_leds(struct mv_host_priv *hpriv, |
| 3368 | void __iomem *mmio) |
| 3369 | { |
| 3370 | return; |
| 3371 | } |
| 3372 | |
| 3373 | static void mv_soc_read_preamp(struct mv_host_priv *hpriv, int idx, |
| 3374 | void __iomem *mmio) |
| 3375 | { |
| 3376 | void __iomem *port_mmio; |
| 3377 | u32 tmp; |
| 3378 | |
| 3379 | port_mmio = mv_port_base(mmio, idx); |
| 3380 | tmp = readl(port_mmio + PHY_MODE2); |
| 3381 | |
| 3382 | hpriv->signal[idx].amps = tmp & 0x700; /* bits 10:8 */ |
| 3383 | hpriv->signal[idx].pre = tmp & 0xe0; /* bits 7:5 */ |
| 3384 | } |
| 3385 | |
| 3386 | #undef ZERO |
| 3387 | #define ZERO(reg) writel(0, port_mmio + (reg)) |
| 3388 | static void mv_soc_reset_hc_port(struct mv_host_priv *hpriv, |
| 3389 | void __iomem *mmio, unsigned int port) |
| 3390 | { |
| 3391 | void __iomem *port_mmio = mv_port_base(mmio, port); |
| 3392 | |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 3393 | mv_reset_channel(hpriv, mmio, port); |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3394 | |
| 3395 | ZERO(0x028); /* command */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3396 | writel(0x101f, port_mmio + EDMA_CFG); |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3397 | ZERO(0x004); /* timer */ |
| 3398 | ZERO(0x008); /* irq err cause */ |
| 3399 | ZERO(0x00c); /* irq err mask */ |
| 3400 | ZERO(0x010); /* rq bah */ |
| 3401 | ZERO(0x014); /* rq inp */ |
| 3402 | ZERO(0x018); /* rq outp */ |
| 3403 | ZERO(0x01c); /* respq bah */ |
| 3404 | ZERO(0x024); /* respq outp */ |
| 3405 | ZERO(0x020); /* respq inp */ |
| 3406 | ZERO(0x02c); /* test control */ |
Saeed Bishara | d7b0c14 | 2009-12-06 18:26:17 +0200 | [diff] [blame] | 3407 | writel(0x800, port_mmio + EDMA_IORDY_TMOUT); |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3408 | } |
| 3409 | |
| 3410 | #undef ZERO |
| 3411 | |
| 3412 | #define ZERO(reg) writel(0, hc_mmio + (reg)) |
| 3413 | static void mv_soc_reset_one_hc(struct mv_host_priv *hpriv, |
| 3414 | void __iomem *mmio) |
| 3415 | { |
| 3416 | void __iomem *hc_mmio = mv_hc_base(mmio, 0); |
| 3417 | |
| 3418 | ZERO(0x00c); |
| 3419 | ZERO(0x010); |
| 3420 | ZERO(0x014); |
| 3421 | |
| 3422 | } |
| 3423 | |
| 3424 | #undef ZERO |
| 3425 | |
| 3426 | static int mv_soc_reset_hc(struct mv_host_priv *hpriv, |
| 3427 | void __iomem *mmio, unsigned int n_hc) |
| 3428 | { |
| 3429 | unsigned int port; |
| 3430 | |
| 3431 | for (port = 0; port < hpriv->n_ports; port++) |
| 3432 | mv_soc_reset_hc_port(hpriv, mmio, port); |
| 3433 | |
| 3434 | mv_soc_reset_one_hc(hpriv, mmio); |
| 3435 | |
| 3436 | return 0; |
| 3437 | } |
| 3438 | |
| 3439 | static void mv_soc_reset_flash(struct mv_host_priv *hpriv, |
| 3440 | void __iomem *mmio) |
| 3441 | { |
| 3442 | return; |
| 3443 | } |
| 3444 | |
| 3445 | static void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio) |
| 3446 | { |
| 3447 | return; |
| 3448 | } |
| 3449 | |
Martin Michlmayr | 29b7e43 | 2009-05-04 20:58:50 +0200 | [diff] [blame] | 3450 | static void mv_soc_65n_phy_errata(struct mv_host_priv *hpriv, |
| 3451 | void __iomem *mmio, unsigned int port) |
| 3452 | { |
| 3453 | void __iomem *port_mmio = mv_port_base(mmio, port); |
| 3454 | u32 reg; |
| 3455 | |
| 3456 | reg = readl(port_mmio + PHY_MODE3); |
| 3457 | reg &= ~(0x3 << 27); /* SELMUPF (bits 28:27) to 1 */ |
| 3458 | reg |= (0x1 << 27); |
| 3459 | reg &= ~(0x3 << 29); /* SELMUPI (bits 30:29) to 1 */ |
| 3460 | reg |= (0x1 << 29); |
| 3461 | writel(reg, port_mmio + PHY_MODE3); |
| 3462 | |
| 3463 | reg = readl(port_mmio + PHY_MODE4); |
| 3464 | reg &= ~0x1; /* SATU_OD8 (bit 0) to 0, reserved bit 16 must be set */ |
| 3465 | reg |= (0x1 << 16); |
| 3466 | writel(reg, port_mmio + PHY_MODE4); |
| 3467 | |
| 3468 | reg = readl(port_mmio + PHY_MODE9_GEN2); |
| 3469 | reg &= ~0xf; /* TXAMP[3:0] (bits 3:0) to 8 */ |
| 3470 | reg |= 0x8; |
| 3471 | reg &= ~(0x1 << 14); /* TXAMP[4] (bit 14) to 0 */ |
| 3472 | writel(reg, port_mmio + PHY_MODE9_GEN2); |
| 3473 | |
| 3474 | reg = readl(port_mmio + PHY_MODE9_GEN1); |
| 3475 | reg &= ~0xf; /* TXAMP[3:0] (bits 3:0) to 8 */ |
| 3476 | reg |= 0x8; |
| 3477 | reg &= ~(0x1 << 14); /* TXAMP[4] (bit 14) to 0 */ |
| 3478 | writel(reg, port_mmio + PHY_MODE9_GEN1); |
| 3479 | } |
| 3480 | |
| 3481 | /** |
| 3482 | * soc_is_65 - check if the soc is 65 nano device |
| 3483 | * |
| 3484 | * Detect the type of the SoC, this is done by reading the PHYCFG_OFS |
| 3485 | * register, this register should contain non-zero value and it exists only |
| 3486 | * in the 65 nano devices, when reading it from older devices we get 0. |
| 3487 | */ |
| 3488 | static bool soc_is_65n(struct mv_host_priv *hpriv) |
| 3489 | { |
| 3490 | void __iomem *port0_mmio = mv_port_base(hpriv->base, 0); |
| 3491 | |
| 3492 | if (readl(port0_mmio + PHYCFG_OFS)) |
| 3493 | return true; |
| 3494 | return false; |
| 3495 | } |
| 3496 | |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 3497 | static void mv_setup_ifcfg(void __iomem *port_mmio, int want_gen2i) |
Mark Lord | b67a106 | 2008-03-31 19:35:13 -0400 | [diff] [blame] | 3498 | { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3499 | u32 ifcfg = readl(port_mmio + SATA_IFCFG); |
Mark Lord | b67a106 | 2008-03-31 19:35:13 -0400 | [diff] [blame] | 3500 | |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 3501 | ifcfg = (ifcfg & 0xf7f) | 0x9b1000; /* from chip spec */ |
Mark Lord | b67a106 | 2008-03-31 19:35:13 -0400 | [diff] [blame] | 3502 | if (want_gen2i) |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 3503 | ifcfg |= (1 << 7); /* enable gen2i speed */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3504 | writelfl(ifcfg, port_mmio + SATA_IFCFG); |
Mark Lord | b67a106 | 2008-03-31 19:35:13 -0400 | [diff] [blame] | 3505 | } |
| 3506 | |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 3507 | static void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio, |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3508 | unsigned int port_no) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3509 | { |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3510 | void __iomem *port_mmio = mv_port_base(mmio, port_no); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3511 | |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 3512 | /* |
| 3513 | * The datasheet warns against setting EDMA_RESET when EDMA is active |
| 3514 | * (but doesn't say what the problem might be). So we first try |
| 3515 | * to disable the EDMA engine before doing the EDMA_RESET operation. |
| 3516 | */ |
Mark Lord | 0d8be5c | 2008-04-16 14:56:12 -0400 | [diff] [blame] | 3517 | mv_stop_edma_engine(port_mmio); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3518 | writelfl(EDMA_RESET, port_mmio + EDMA_CMD); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3519 | |
Mark Lord | b67a106 | 2008-03-31 19:35:13 -0400 | [diff] [blame] | 3520 | if (!IS_GEN_I(hpriv)) { |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 3521 | /* Enable 3.0gb/s link speed: this survives EDMA_RESET */ |
| 3522 | mv_setup_ifcfg(port_mmio, 1); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3523 | } |
Mark Lord | b67a106 | 2008-03-31 19:35:13 -0400 | [diff] [blame] | 3524 | /* |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 3525 | * Strobing EDMA_RESET here causes a hard reset of the SATA transport, |
Mark Lord | b67a106 | 2008-03-31 19:35:13 -0400 | [diff] [blame] | 3526 | * link, and physical layers. It resets all SATA interface registers |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3527 | * (except for SATA_IFCFG), and issues a COMRESET to the dev. |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3528 | */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3529 | writelfl(EDMA_RESET, port_mmio + EDMA_CMD); |
Mark Lord | b67a106 | 2008-03-31 19:35:13 -0400 | [diff] [blame] | 3530 | udelay(25); /* allow reset propagation */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3531 | writelfl(0, port_mmio + EDMA_CMD); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3532 | |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3533 | hpriv->ops->phy_errata(hpriv, mmio, port_no); |
| 3534 | |
Jeff Garzik | ee9ccdf | 2007-07-12 15:51:22 -0400 | [diff] [blame] | 3535 | if (IS_GEN_I(hpriv)) |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3536 | mdelay(1); |
| 3537 | } |
| 3538 | |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 3539 | static void mv_pmp_select(struct ata_port *ap, int pmp) |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3540 | { |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 3541 | if (sata_pmp_supported(ap)) { |
| 3542 | void __iomem *port_mmio = mv_ap_base(ap); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3543 | u32 reg = readl(port_mmio + SATA_IFCTL); |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 3544 | int old = reg & 0xf; |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3545 | |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 3546 | if (old != pmp) { |
| 3547 | reg = (reg & ~0xf) | pmp; |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3548 | writelfl(reg, port_mmio + SATA_IFCTL); |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 3549 | } |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 3550 | } |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3551 | } |
| 3552 | |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 3553 | static int mv_pmp_hardreset(struct ata_link *link, unsigned int *class, |
| 3554 | unsigned long deadline) |
Jeff Garzik | 2237467 | 2005-11-17 10:59:48 -0500 | [diff] [blame] | 3555 | { |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 3556 | mv_pmp_select(link->ap, sata_srst_pmp(link)); |
| 3557 | return sata_std_hardreset(link, class, deadline); |
| 3558 | } |
Jeff Garzik | 0ea9e17 | 2007-07-13 17:06:45 -0400 | [diff] [blame] | 3559 | |
Mark Lord | e49856d | 2008-04-16 14:59:07 -0400 | [diff] [blame] | 3560 | static int mv_softreset(struct ata_link *link, unsigned int *class, |
| 3561 | unsigned long deadline) |
| 3562 | { |
| 3563 | mv_pmp_select(link->ap, sata_srst_pmp(link)); |
| 3564 | return ata_sff_softreset(link, class, deadline); |
Jeff Garzik | 2237467 | 2005-11-17 10:59:48 -0500 | [diff] [blame] | 3565 | } |
| 3566 | |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 3567 | static int mv_hardreset(struct ata_link *link, unsigned int *class, |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3568 | unsigned long deadline) |
| 3569 | { |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 3570 | struct ata_port *ap = link->ap; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3571 | struct mv_host_priv *hpriv = ap->host->private_data; |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 3572 | struct mv_port_priv *pp = ap->private_data; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3573 | void __iomem *mmio = hpriv->base; |
Mark Lord | 0d8be5c | 2008-04-16 14:56:12 -0400 | [diff] [blame] | 3574 | int rc, attempts = 0, extra = 0; |
| 3575 | u32 sstatus; |
| 3576 | bool online; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3577 | |
Mark Lord | e12bef5 | 2008-03-31 19:33:56 -0400 | [diff] [blame] | 3578 | mv_reset_channel(hpriv, mmio, ap->port_no); |
Mark Lord | b562468 | 2008-03-31 19:34:40 -0400 | [diff] [blame] | 3579 | pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN; |
Mark Lord | d16ab3f | 2009-02-25 15:17:43 -0500 | [diff] [blame] | 3580 | pp->pp_flags &= |
| 3581 | ~(MV_PP_FLAG_FBS_EN | MV_PP_FLAG_NCQ_EN | MV_PP_FLAG_FAKE_ATA_BUSY); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3582 | |
Mark Lord | 0d8be5c | 2008-04-16 14:56:12 -0400 | [diff] [blame] | 3583 | /* Workaround for errata FEr SATA#10 (part 2) */ |
| 3584 | do { |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 3585 | const unsigned long *timing = |
| 3586 | sata_ehc_deb_timing(&link->eh_context); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3587 | |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 3588 | rc = sata_link_hardreset(link, timing, deadline + extra, |
| 3589 | &online, NULL); |
Mark Lord | 9dcffd9 | 2008-05-14 09:18:12 -0400 | [diff] [blame] | 3590 | rc = online ? -EAGAIN : rc; |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 3591 | if (rc) |
Mark Lord | 0d8be5c | 2008-04-16 14:56:12 -0400 | [diff] [blame] | 3592 | return rc; |
Mark Lord | 0d8be5c | 2008-04-16 14:56:12 -0400 | [diff] [blame] | 3593 | sata_scr_read(link, SCR_STATUS, &sstatus); |
| 3594 | if (!IS_GEN_I(hpriv) && ++attempts >= 5 && sstatus == 0x121) { |
| 3595 | /* Force 1.5gb/s link speed and try again */ |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 3596 | mv_setup_ifcfg(mv_ap_base(ap), 0); |
Mark Lord | 0d8be5c | 2008-04-16 14:56:12 -0400 | [diff] [blame] | 3597 | if (time_after(jiffies + HZ, deadline)) |
| 3598 | extra = HZ; /* only extend it once, max */ |
| 3599 | } |
| 3600 | } while (sstatus != 0x0 && sstatus != 0x113 && sstatus != 0x123); |
Mark Lord | 08da175 | 2009-02-25 15:13:03 -0500 | [diff] [blame] | 3601 | mv_save_cached_regs(ap); |
Mark Lord | 66e57a2 | 2009-01-30 18:52:58 -0500 | [diff] [blame] | 3602 | mv_edma_cfg(ap, 0, 0); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3603 | |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 3604 | return rc; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3605 | } |
| 3606 | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3607 | static void mv_eh_freeze(struct ata_port *ap) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3608 | { |
Mark Lord | 1cfd19a | 2008-04-19 15:05:50 -0400 | [diff] [blame] | 3609 | mv_stop_edma(ap); |
Mark Lord | c4de573 | 2008-05-17 13:35:21 -0400 | [diff] [blame] | 3610 | mv_enable_port_irqs(ap, 0); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3611 | } |
| 3612 | |
| 3613 | static void mv_eh_thaw(struct ata_port *ap) |
| 3614 | { |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3615 | struct mv_host_priv *hpriv = ap->host->private_data; |
Mark Lord | c4de573 | 2008-05-17 13:35:21 -0400 | [diff] [blame] | 3616 | unsigned int port = ap->port_no; |
| 3617 | unsigned int hardport = mv_hardport_from_port(port); |
Mark Lord | 1cfd19a | 2008-04-19 15:05:50 -0400 | [diff] [blame] | 3618 | void __iomem *hc_mmio = mv_hc_base_from_port(hpriv->base, port); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3619 | void __iomem *port_mmio = mv_ap_base(ap); |
Mark Lord | c4de573 | 2008-05-17 13:35:21 -0400 | [diff] [blame] | 3620 | u32 hc_irq_cause; |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3621 | |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3622 | /* clear EDMA errors on this port */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3623 | writel(0, port_mmio + EDMA_ERR_IRQ_CAUSE); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3624 | |
| 3625 | /* clear pending irq events */ |
Mark Lord | cae6edc | 2009-01-19 18:05:42 -0500 | [diff] [blame] | 3626 | hc_irq_cause = ~((DEV_IRQ | DMA_IRQ) << hardport); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3627 | writelfl(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE); |
Jeff Garzik | bdd4ddd | 2007-07-12 14:34:26 -0400 | [diff] [blame] | 3628 | |
Mark Lord | 88e675e | 2008-05-17 13:36:30 -0400 | [diff] [blame] | 3629 | mv_enable_port_irqs(ap, ERR_IRQ); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3630 | } |
| 3631 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 3632 | /** |
| 3633 | * mv_port_init - Perform some early initialization on a single port. |
| 3634 | * @port: libata data structure storing shadow register addresses |
| 3635 | * @port_mmio: base address of the port |
| 3636 | * |
| 3637 | * Initialize shadow register mmio addresses, clear outstanding |
| 3638 | * interrupts on the port, and unmask interrupts for the future |
| 3639 | * start of the port. |
| 3640 | * |
| 3641 | * LOCKING: |
| 3642 | * Inherited from caller. |
| 3643 | */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3644 | static void mv_port_init(struct ata_ioports *port, void __iomem *port_mmio) |
| 3645 | { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3646 | void __iomem *serr, *shd_base = port_mmio + SHD_BLK; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3647 | |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 3648 | /* PIO related setup |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3649 | */ |
| 3650 | port->data_addr = shd_base + (sizeof(u32) * ATA_REG_DATA); |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 3651 | port->error_addr = |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3652 | port->feature_addr = shd_base + (sizeof(u32) * ATA_REG_ERR); |
| 3653 | port->nsect_addr = shd_base + (sizeof(u32) * ATA_REG_NSECT); |
| 3654 | port->lbal_addr = shd_base + (sizeof(u32) * ATA_REG_LBAL); |
| 3655 | port->lbam_addr = shd_base + (sizeof(u32) * ATA_REG_LBAM); |
| 3656 | port->lbah_addr = shd_base + (sizeof(u32) * ATA_REG_LBAH); |
| 3657 | port->device_addr = shd_base + (sizeof(u32) * ATA_REG_DEVICE); |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 3658 | port->status_addr = |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3659 | port->command_addr = shd_base + (sizeof(u32) * ATA_REG_STATUS); |
| 3660 | /* special case: control/altstatus doesn't have ATA_REG_ address */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3661 | port->altstatus_addr = port->ctl_addr = shd_base + SHD_CTL_AST; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3662 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3663 | /* Clear any currently outstanding port interrupt conditions */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3664 | serr = port_mmio + mv_scr_offset(SCR_ERROR); |
| 3665 | writelfl(readl(serr), serr); |
| 3666 | writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3667 | |
Mark Lord | 646a4da | 2008-01-26 18:30:37 -0500 | [diff] [blame] | 3668 | /* unmask all non-transient EDMA error interrupts */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3669 | writelfl(~EDMA_ERR_IRQ_TRANSIENT, port_mmio + EDMA_ERR_IRQ_MASK); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3670 | |
Jeff Garzik | 8b26024 | 2005-11-12 12:32:50 -0500 | [diff] [blame] | 3671 | VPRINTK("EDMA cfg=0x%08x EDMA IRQ err cause/mask=0x%08x/0x%08x\n", |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3672 | readl(port_mmio + EDMA_CFG), |
| 3673 | readl(port_mmio + EDMA_ERR_IRQ_CAUSE), |
| 3674 | readl(port_mmio + EDMA_ERR_IRQ_MASK)); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3675 | } |
| 3676 | |
Mark Lord | 616d4a9 | 2008-05-02 02:08:32 -0400 | [diff] [blame] | 3677 | static unsigned int mv_in_pcix_mode(struct ata_host *host) |
| 3678 | { |
| 3679 | struct mv_host_priv *hpriv = host->private_data; |
| 3680 | void __iomem *mmio = hpriv->base; |
| 3681 | u32 reg; |
| 3682 | |
Mark Lord | 1f39847 | 2008-05-27 17:54:48 -0400 | [diff] [blame] | 3683 | if (IS_SOC(hpriv) || !IS_PCIE(hpriv)) |
Mark Lord | 616d4a9 | 2008-05-02 02:08:32 -0400 | [diff] [blame] | 3684 | return 0; /* not PCI-X capable */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3685 | reg = readl(mmio + MV_PCI_MODE); |
Mark Lord | 616d4a9 | 2008-05-02 02:08:32 -0400 | [diff] [blame] | 3686 | if ((reg & MV_PCI_MODE_MASK) == 0) |
| 3687 | return 0; /* conventional PCI mode */ |
| 3688 | return 1; /* chip is in PCI-X mode */ |
| 3689 | } |
| 3690 | |
| 3691 | static int mv_pci_cut_through_okay(struct ata_host *host) |
| 3692 | { |
| 3693 | struct mv_host_priv *hpriv = host->private_data; |
| 3694 | void __iomem *mmio = hpriv->base; |
| 3695 | u32 reg; |
| 3696 | |
| 3697 | if (!mv_in_pcix_mode(host)) { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3698 | reg = readl(mmio + MV_PCI_COMMAND); |
| 3699 | if (reg & MV_PCI_COMMAND_MRDTRIG) |
Mark Lord | 616d4a9 | 2008-05-02 02:08:32 -0400 | [diff] [blame] | 3700 | return 0; /* not okay */ |
| 3701 | } |
| 3702 | return 1; /* okay */ |
| 3703 | } |
| 3704 | |
Mark Lord | 65ad7fef | 2009-04-06 15:24:14 -0400 | [diff] [blame] | 3705 | static void mv_60x1b2_errata_pci7(struct ata_host *host) |
| 3706 | { |
| 3707 | struct mv_host_priv *hpriv = host->private_data; |
| 3708 | void __iomem *mmio = hpriv->base; |
| 3709 | |
| 3710 | /* workaround for 60x1-B2 errata PCI#7 */ |
| 3711 | if (mv_in_pcix_mode(host)) { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3712 | u32 reg = readl(mmio + MV_PCI_COMMAND); |
| 3713 | writelfl(reg & ~MV_PCI_COMMAND_MWRCOM, mmio + MV_PCI_COMMAND); |
Mark Lord | 65ad7fef | 2009-04-06 15:24:14 -0400 | [diff] [blame] | 3714 | } |
| 3715 | } |
| 3716 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 3717 | static int mv_chip_id(struct ata_host *host, unsigned int board_idx) |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3718 | { |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 3719 | struct pci_dev *pdev = to_pci_dev(host->dev); |
| 3720 | struct mv_host_priv *hpriv = host->private_data; |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3721 | u32 hp_flags = hpriv->hp_flags; |
| 3722 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 3723 | switch (board_idx) { |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3724 | case chip_5080: |
| 3725 | hpriv->ops = &mv5xxx_ops; |
Jeff Garzik | ee9ccdf | 2007-07-12 15:51:22 -0400 | [diff] [blame] | 3726 | hp_flags |= MV_HP_GEN_I; |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3727 | |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 3728 | switch (pdev->revision) { |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3729 | case 0x1: |
| 3730 | hp_flags |= MV_HP_ERRATA_50XXB0; |
| 3731 | break; |
| 3732 | case 0x3: |
| 3733 | hp_flags |= MV_HP_ERRATA_50XXB2; |
| 3734 | break; |
| 3735 | default: |
| 3736 | dev_printk(KERN_WARNING, &pdev->dev, |
| 3737 | "Applying 50XXB2 workarounds to unknown rev\n"); |
| 3738 | hp_flags |= MV_HP_ERRATA_50XXB2; |
| 3739 | break; |
| 3740 | } |
| 3741 | break; |
| 3742 | |
| 3743 | case chip_504x: |
| 3744 | case chip_508x: |
| 3745 | hpriv->ops = &mv5xxx_ops; |
Jeff Garzik | ee9ccdf | 2007-07-12 15:51:22 -0400 | [diff] [blame] | 3746 | hp_flags |= MV_HP_GEN_I; |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3747 | |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 3748 | switch (pdev->revision) { |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3749 | case 0x0: |
| 3750 | hp_flags |= MV_HP_ERRATA_50XXB0; |
| 3751 | break; |
| 3752 | case 0x3: |
| 3753 | hp_flags |= MV_HP_ERRATA_50XXB2; |
| 3754 | break; |
| 3755 | default: |
| 3756 | dev_printk(KERN_WARNING, &pdev->dev, |
| 3757 | "Applying B2 workarounds to unknown rev\n"); |
| 3758 | hp_flags |= MV_HP_ERRATA_50XXB2; |
| 3759 | break; |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3760 | } |
| 3761 | break; |
| 3762 | |
| 3763 | case chip_604x: |
| 3764 | case chip_608x: |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3765 | hpriv->ops = &mv6xxx_ops; |
Jeff Garzik | ee9ccdf | 2007-07-12 15:51:22 -0400 | [diff] [blame] | 3766 | hp_flags |= MV_HP_GEN_II; |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3767 | |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 3768 | switch (pdev->revision) { |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3769 | case 0x7: |
Mark Lord | 65ad7fef | 2009-04-06 15:24:14 -0400 | [diff] [blame] | 3770 | mv_60x1b2_errata_pci7(host); |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3771 | hp_flags |= MV_HP_ERRATA_60X1B2; |
| 3772 | break; |
| 3773 | case 0x9: |
| 3774 | hp_flags |= MV_HP_ERRATA_60X1C0; |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3775 | break; |
| 3776 | default: |
| 3777 | dev_printk(KERN_WARNING, &pdev->dev, |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3778 | "Applying B2 workarounds to unknown rev\n"); |
| 3779 | hp_flags |= MV_HP_ERRATA_60X1B2; |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3780 | break; |
| 3781 | } |
| 3782 | break; |
| 3783 | |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 3784 | case chip_7042: |
Mark Lord | 616d4a9 | 2008-05-02 02:08:32 -0400 | [diff] [blame] | 3785 | hp_flags |= MV_HP_PCIE | MV_HP_CUT_THROUGH; |
Mark Lord | 306b30f | 2007-12-04 14:07:52 -0500 | [diff] [blame] | 3786 | if (pdev->vendor == PCI_VENDOR_ID_TTI && |
| 3787 | (pdev->device == 0x2300 || pdev->device == 0x2310)) |
| 3788 | { |
Mark Lord | 4e52003 | 2007-12-11 12:58:05 -0500 | [diff] [blame] | 3789 | /* |
| 3790 | * Highpoint RocketRAID PCIe 23xx series cards: |
| 3791 | * |
| 3792 | * Unconfigured drives are treated as "Legacy" |
| 3793 | * by the BIOS, and it overwrites sector 8 with |
| 3794 | * a "Lgcy" metadata block prior to Linux boot. |
| 3795 | * |
| 3796 | * Configured drives (RAID or JBOD) leave sector 8 |
| 3797 | * alone, but instead overwrite a high numbered |
| 3798 | * sector for the RAID metadata. This sector can |
| 3799 | * be determined exactly, by truncating the physical |
| 3800 | * drive capacity to a nice even GB value. |
| 3801 | * |
| 3802 | * RAID metadata is at: (dev->n_sectors & ~0xfffff) |
| 3803 | * |
| 3804 | * Warn the user, lest they think we're just buggy. |
| 3805 | */ |
| 3806 | printk(KERN_WARNING DRV_NAME ": Highpoint RocketRAID" |
| 3807 | " BIOS CORRUPTS DATA on all attached drives," |
| 3808 | " regardless of if/how they are configured." |
| 3809 | " BEWARE!\n"); |
| 3810 | printk(KERN_WARNING DRV_NAME ": For data safety, do not" |
| 3811 | " use sectors 8-9 on \"Legacy\" drives," |
| 3812 | " and avoid the final two gigabytes on" |
| 3813 | " all RocketRAID BIOS initialized drives.\n"); |
Mark Lord | 306b30f | 2007-12-04 14:07:52 -0500 | [diff] [blame] | 3814 | } |
Mark Lord | 8e7decd | 2008-05-02 02:07:51 -0400 | [diff] [blame] | 3815 | /* drop through */ |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 3816 | case chip_6042: |
| 3817 | hpriv->ops = &mv6xxx_ops; |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 3818 | hp_flags |= MV_HP_GEN_IIE; |
Mark Lord | 616d4a9 | 2008-05-02 02:08:32 -0400 | [diff] [blame] | 3819 | if (board_idx == chip_6042 && mv_pci_cut_through_okay(host)) |
| 3820 | hp_flags |= MV_HP_CUT_THROUGH; |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 3821 | |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 3822 | switch (pdev->revision) { |
Mark Lord | 5cf73bf | 2008-05-27 17:58:56 -0400 | [diff] [blame] | 3823 | case 0x2: /* Rev.B0: the first/only public release */ |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 3824 | hp_flags |= MV_HP_ERRATA_60X1C0; |
| 3825 | break; |
| 3826 | default: |
| 3827 | dev_printk(KERN_WARNING, &pdev->dev, |
| 3828 | "Applying 60X1C0 workarounds to unknown rev\n"); |
| 3829 | hp_flags |= MV_HP_ERRATA_60X1C0; |
| 3830 | break; |
| 3831 | } |
| 3832 | break; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3833 | case chip_soc: |
Martin Michlmayr | 29b7e43 | 2009-05-04 20:58:50 +0200 | [diff] [blame] | 3834 | if (soc_is_65n(hpriv)) |
| 3835 | hpriv->ops = &mv_soc_65n_ops; |
| 3836 | else |
| 3837 | hpriv->ops = &mv_soc_ops; |
Saeed Bishara | eb3a55a | 2008-08-04 00:52:55 -1100 | [diff] [blame] | 3838 | hp_flags |= MV_HP_FLAG_SOC | MV_HP_GEN_IIE | |
| 3839 | MV_HP_ERRATA_60X1C0; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3840 | break; |
Jeff Garzik | e4e7b89 | 2006-01-31 12:18:41 -0500 | [diff] [blame] | 3841 | |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3842 | default: |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3843 | dev_printk(KERN_ERR, host->dev, |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 3844 | "BUG: invalid board index %u\n", board_idx); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3845 | return 1; |
| 3846 | } |
| 3847 | |
| 3848 | hpriv->hp_flags = hp_flags; |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 3849 | if (hp_flags & MV_HP_PCIE) { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3850 | hpriv->irq_cause_offset = PCIE_IRQ_CAUSE; |
| 3851 | hpriv->irq_mask_offset = PCIE_IRQ_MASK; |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 3852 | hpriv->unmask_all_irqs = PCIE_UNMASK_ALL_IRQS; |
| 3853 | } else { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3854 | hpriv->irq_cause_offset = PCI_IRQ_CAUSE; |
| 3855 | hpriv->irq_mask_offset = PCI_IRQ_MASK; |
Mark Lord | 02a121d | 2007-12-01 13:07:22 -0500 | [diff] [blame] | 3856 | hpriv->unmask_all_irqs = PCI_UNMASK_ALL_IRQS; |
| 3857 | } |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3858 | |
| 3859 | return 0; |
| 3860 | } |
| 3861 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 3862 | /** |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3863 | * mv_init_host - Perform some early initialization of the host. |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 3864 | * @host: ATA host to initialize |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 3865 | * |
| 3866 | * If possible, do an early global reset of the host. Then do |
| 3867 | * our port init and clear/unmask all/relevant host interrupts. |
| 3868 | * |
| 3869 | * LOCKING: |
| 3870 | * Inherited from caller. |
| 3871 | */ |
Saeed Bishara | 1bfeff0 | 2009-12-17 01:05:00 -0500 | [diff] [blame] | 3872 | static int mv_init_host(struct ata_host *host) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3873 | { |
| 3874 | int rc = 0, n_hc, port, hc; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 3875 | struct mv_host_priv *hpriv = host->private_data; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3876 | void __iomem *mmio = hpriv->base; |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3877 | |
Saeed Bishara | 1bfeff0 | 2009-12-17 01:05:00 -0500 | [diff] [blame] | 3878 | rc = mv_chip_id(host, hpriv->board_idx); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3879 | if (rc) |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 3880 | goto done; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3881 | |
Mark Lord | 1f39847 | 2008-05-27 17:54:48 -0400 | [diff] [blame] | 3882 | if (IS_SOC(hpriv)) { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3883 | hpriv->main_irq_cause_addr = mmio + SOC_HC_MAIN_IRQ_CAUSE; |
| 3884 | hpriv->main_irq_mask_addr = mmio + SOC_HC_MAIN_IRQ_MASK; |
Mark Lord | 1f39847 | 2008-05-27 17:54:48 -0400 | [diff] [blame] | 3885 | } else { |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3886 | hpriv->main_irq_cause_addr = mmio + PCI_HC_MAIN_IRQ_CAUSE; |
| 3887 | hpriv->main_irq_mask_addr = mmio + PCI_HC_MAIN_IRQ_MASK; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3888 | } |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 3889 | |
Thomas Reitmayr | 5d0fb2e | 2009-01-24 20:24:58 +0100 | [diff] [blame] | 3890 | /* initialize shadow irq mask with register's value */ |
| 3891 | hpriv->main_irq_mask = readl(hpriv->main_irq_mask_addr); |
| 3892 | |
Mark Lord | 352fab7 | 2008-04-19 14:43:42 -0400 | [diff] [blame] | 3893 | /* global interrupt mask: 0 == mask everything */ |
Mark Lord | c4de573 | 2008-05-17 13:35:21 -0400 | [diff] [blame] | 3894 | mv_set_main_irq_mask(host, ~0, 0); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3895 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 3896 | n_hc = mv_get_hc_count(host->ports[0]->flags); |
Jeff Garzik | bca1c4e | 2005-11-12 12:48:15 -0500 | [diff] [blame] | 3897 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 3898 | for (port = 0; port < host->n_ports; port++) |
Martin Michlmayr | 29b7e43 | 2009-05-04 20:58:50 +0200 | [diff] [blame] | 3899 | if (hpriv->ops->read_preamp) |
| 3900 | hpriv->ops->read_preamp(hpriv, port, mmio); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3901 | |
Jeff Garzik | c9d3913 | 2005-11-13 17:47:51 -0500 | [diff] [blame] | 3902 | rc = hpriv->ops->reset_hc(hpriv, mmio, n_hc); |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3903 | if (rc) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3904 | goto done; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3905 | |
Jeff Garzik | 522479f | 2005-11-12 22:14:02 -0500 | [diff] [blame] | 3906 | hpriv->ops->reset_flash(hpriv, mmio); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 3907 | hpriv->ops->reset_bus(host, mmio); |
Jeff Garzik | 47c2b67 | 2005-11-12 21:13:17 -0500 | [diff] [blame] | 3908 | hpriv->ops->enable_leds(hpriv, mmio); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3909 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 3910 | for (port = 0; port < host->n_ports; port++) { |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 3911 | struct ata_port *ap = host->ports[port]; |
Jeff Garzik | 2a47ce0 | 2005-11-12 23:05:14 -0500 | [diff] [blame] | 3912 | void __iomem *port_mmio = mv_port_base(mmio, port); |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 3913 | |
| 3914 | mv_port_init(&ap->ioaddr, port_mmio); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3915 | } |
| 3916 | |
| 3917 | for (hc = 0; hc < n_hc; hc++) { |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3918 | void __iomem *hc_mmio = mv_hc_base(mmio, hc); |
| 3919 | |
| 3920 | VPRINTK("HC%i: HC config=0x%08x HC IRQ cause " |
| 3921 | "(before clear)=0x%08x\n", hc, |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3922 | readl(hc_mmio + HC_CFG), |
| 3923 | readl(hc_mmio + HC_IRQ_CAUSE)); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3924 | |
| 3925 | /* Clear any currently outstanding hc interrupt conditions */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3926 | writelfl(0, hc_mmio + HC_IRQ_CAUSE); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3927 | } |
| 3928 | |
Mark Lord | 44c65d1 | 2009-04-06 12:29:49 -0400 | [diff] [blame] | 3929 | if (!IS_SOC(hpriv)) { |
| 3930 | /* Clear any currently outstanding host interrupt conditions */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3931 | writelfl(0, mmio + hpriv->irq_cause_offset); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3932 | |
Mark Lord | 44c65d1 | 2009-04-06 12:29:49 -0400 | [diff] [blame] | 3933 | /* and unmask interrupt generation for host regs */ |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 3934 | writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_offset); |
Mark Lord | 44c65d1 | 2009-04-06 12:29:49 -0400 | [diff] [blame] | 3935 | } |
Jeff Garzik | fb621e2 | 2007-02-25 04:19:45 -0500 | [diff] [blame] | 3936 | |
Mark Lord | 6be96ac | 2009-02-19 10:38:04 -0500 | [diff] [blame] | 3937 | /* |
| 3938 | * enable only global host interrupts for now. |
| 3939 | * The per-port interrupts get done later as ports are set up. |
| 3940 | */ |
| 3941 | mv_set_main_irq_mask(host, 0, PCI_ERR); |
Mark Lord | 2b748a0 | 2009-03-10 22:01:17 -0400 | [diff] [blame] | 3942 | mv_set_irq_coalescing(host, irq_coalescing_io_count, |
| 3943 | irq_coalescing_usecs); |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 3944 | done: |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 3945 | return rc; |
| 3946 | } |
| 3947 | |
Byron Bradley | fbf14e2 | 2008-02-10 21:17:30 +0000 | [diff] [blame] | 3948 | static int mv_create_dma_pools(struct mv_host_priv *hpriv, struct device *dev) |
| 3949 | { |
| 3950 | hpriv->crqb_pool = dmam_pool_create("crqb_q", dev, MV_CRQB_Q_SZ, |
| 3951 | MV_CRQB_Q_SZ, 0); |
| 3952 | if (!hpriv->crqb_pool) |
| 3953 | return -ENOMEM; |
| 3954 | |
| 3955 | hpriv->crpb_pool = dmam_pool_create("crpb_q", dev, MV_CRPB_Q_SZ, |
| 3956 | MV_CRPB_Q_SZ, 0); |
| 3957 | if (!hpriv->crpb_pool) |
| 3958 | return -ENOMEM; |
| 3959 | |
| 3960 | hpriv->sg_tbl_pool = dmam_pool_create("sg_tbl", dev, MV_SG_TBL_SZ, |
| 3961 | MV_SG_TBL_SZ, 0); |
| 3962 | if (!hpriv->sg_tbl_pool) |
| 3963 | return -ENOMEM; |
| 3964 | |
| 3965 | return 0; |
| 3966 | } |
| 3967 | |
Lennert Buytenhek | 15a3263 | 2008-03-27 14:51:39 -0400 | [diff] [blame] | 3968 | static void mv_conf_mbus_windows(struct mv_host_priv *hpriv, |
| 3969 | struct mbus_dram_target_info *dram) |
| 3970 | { |
| 3971 | int i; |
| 3972 | |
| 3973 | for (i = 0; i < 4; i++) { |
| 3974 | writel(0, hpriv->base + WINDOW_CTRL(i)); |
| 3975 | writel(0, hpriv->base + WINDOW_BASE(i)); |
| 3976 | } |
| 3977 | |
| 3978 | for (i = 0; i < dram->num_cs; i++) { |
| 3979 | struct mbus_dram_window *cs = dram->cs + i; |
| 3980 | |
| 3981 | writel(((cs->size - 1) & 0xffff0000) | |
| 3982 | (cs->mbus_attr << 8) | |
| 3983 | (dram->mbus_dram_target_id << 4) | 1, |
| 3984 | hpriv->base + WINDOW_CTRL(i)); |
| 3985 | writel(cs->base, hpriv->base + WINDOW_BASE(i)); |
| 3986 | } |
| 3987 | } |
| 3988 | |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 3989 | /** |
| 3990 | * mv_platform_probe - handle a positive probe of an soc Marvell |
| 3991 | * host |
| 3992 | * @pdev: platform device found |
| 3993 | * |
| 3994 | * LOCKING: |
| 3995 | * Inherited from caller. |
| 3996 | */ |
| 3997 | static int mv_platform_probe(struct platform_device *pdev) |
| 3998 | { |
| 3999 | static int printed_version; |
| 4000 | const struct mv_sata_platform_data *mv_platform_data; |
| 4001 | const struct ata_port_info *ppi[] = |
| 4002 | { &mv_port_info[chip_soc], NULL }; |
| 4003 | struct ata_host *host; |
| 4004 | struct mv_host_priv *hpriv; |
| 4005 | struct resource *res; |
| 4006 | int n_ports, rc; |
| 4007 | |
| 4008 | if (!printed_version++) |
| 4009 | dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); |
| 4010 | |
| 4011 | /* |
| 4012 | * Simple resource validation .. |
| 4013 | */ |
| 4014 | if (unlikely(pdev->num_resources != 2)) { |
| 4015 | dev_err(&pdev->dev, "invalid number of resources\n"); |
| 4016 | return -EINVAL; |
| 4017 | } |
| 4018 | |
| 4019 | /* |
| 4020 | * Get the register base first |
| 4021 | */ |
| 4022 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 4023 | if (res == NULL) |
| 4024 | return -EINVAL; |
| 4025 | |
| 4026 | /* allocate host */ |
| 4027 | mv_platform_data = pdev->dev.platform_data; |
| 4028 | n_ports = mv_platform_data->n_ports; |
| 4029 | |
| 4030 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); |
| 4031 | hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); |
| 4032 | |
| 4033 | if (!host || !hpriv) |
| 4034 | return -ENOMEM; |
| 4035 | host->private_data = hpriv; |
| 4036 | hpriv->n_ports = n_ports; |
Saeed Bishara | 1bfeff0 | 2009-12-17 01:05:00 -0500 | [diff] [blame] | 4037 | hpriv->board_idx = chip_soc; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4038 | |
| 4039 | host->iomap = NULL; |
Saeed Bishara | f1cb0ea | 2008-02-18 07:42:28 -1100 | [diff] [blame] | 4040 | hpriv->base = devm_ioremap(&pdev->dev, res->start, |
Julia Lawall | 041b5ea | 2009-08-06 16:05:08 -0700 | [diff] [blame] | 4041 | resource_size(res)); |
Mark Lord | cae5a29 | 2009-04-06 16:43:45 -0400 | [diff] [blame] | 4042 | hpriv->base -= SATAHC0_REG_BASE; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4043 | |
Saeed Bishara | c77a2f4 | 2009-12-06 18:26:18 +0200 | [diff] [blame] | 4044 | #if defined(CONFIG_HAVE_CLK) |
| 4045 | hpriv->clk = clk_get(&pdev->dev, NULL); |
| 4046 | if (IS_ERR(hpriv->clk)) |
| 4047 | dev_notice(&pdev->dev, "cannot get clkdev\n"); |
| 4048 | else |
| 4049 | clk_enable(hpriv->clk); |
| 4050 | #endif |
| 4051 | |
Lennert Buytenhek | 15a3263 | 2008-03-27 14:51:39 -0400 | [diff] [blame] | 4052 | /* |
| 4053 | * (Re-)program MBUS remapping windows if we are asked to. |
| 4054 | */ |
| 4055 | if (mv_platform_data->dram != NULL) |
| 4056 | mv_conf_mbus_windows(hpriv, mv_platform_data->dram); |
| 4057 | |
Byron Bradley | fbf14e2 | 2008-02-10 21:17:30 +0000 | [diff] [blame] | 4058 | rc = mv_create_dma_pools(hpriv, &pdev->dev); |
| 4059 | if (rc) |
Saeed Bishara | c77a2f4 | 2009-12-06 18:26:18 +0200 | [diff] [blame] | 4060 | goto err; |
Byron Bradley | fbf14e2 | 2008-02-10 21:17:30 +0000 | [diff] [blame] | 4061 | |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4062 | /* initialize adapter */ |
Saeed Bishara | 1bfeff0 | 2009-12-17 01:05:00 -0500 | [diff] [blame] | 4063 | rc = mv_init_host(host); |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4064 | if (rc) |
Saeed Bishara | c77a2f4 | 2009-12-06 18:26:18 +0200 | [diff] [blame] | 4065 | goto err; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4066 | |
| 4067 | dev_printk(KERN_INFO, &pdev->dev, |
| 4068 | "slots %u ports %d\n", (unsigned)MV_MAX_Q_DEPTH, |
| 4069 | host->n_ports); |
| 4070 | |
| 4071 | return ata_host_activate(host, platform_get_irq(pdev, 0), mv_interrupt, |
| 4072 | IRQF_SHARED, &mv6_sht); |
Saeed Bishara | c77a2f4 | 2009-12-06 18:26:18 +0200 | [diff] [blame] | 4073 | err: |
| 4074 | #if defined(CONFIG_HAVE_CLK) |
| 4075 | if (!IS_ERR(hpriv->clk)) { |
| 4076 | clk_disable(hpriv->clk); |
| 4077 | clk_put(hpriv->clk); |
| 4078 | } |
| 4079 | #endif |
| 4080 | |
| 4081 | return rc; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4082 | } |
| 4083 | |
| 4084 | /* |
| 4085 | * |
| 4086 | * mv_platform_remove - unplug a platform interface |
| 4087 | * @pdev: platform device |
| 4088 | * |
| 4089 | * A platform bus SATA device has been unplugged. Perform the needed |
| 4090 | * cleanup. Also called on module unload for any active devices. |
| 4091 | */ |
| 4092 | static int __devexit mv_platform_remove(struct platform_device *pdev) |
| 4093 | { |
| 4094 | struct device *dev = &pdev->dev; |
| 4095 | struct ata_host *host = dev_get_drvdata(dev); |
Saeed Bishara | c77a2f4 | 2009-12-06 18:26:18 +0200 | [diff] [blame] | 4096 | #if defined(CONFIG_HAVE_CLK) |
| 4097 | struct mv_host_priv *hpriv = host->private_data; |
| 4098 | #endif |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4099 | ata_host_detach(host); |
Saeed Bishara | c77a2f4 | 2009-12-06 18:26:18 +0200 | [diff] [blame] | 4100 | |
| 4101 | #if defined(CONFIG_HAVE_CLK) |
| 4102 | if (!IS_ERR(hpriv->clk)) { |
| 4103 | clk_disable(hpriv->clk); |
| 4104 | clk_put(hpriv->clk); |
| 4105 | } |
| 4106 | #endif |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4107 | return 0; |
| 4108 | } |
| 4109 | |
Saeed Bishara | 6481f2b | 2009-12-06 18:26:19 +0200 | [diff] [blame] | 4110 | #ifdef CONFIG_PM |
| 4111 | static int mv_platform_suspend(struct platform_device *pdev, pm_message_t state) |
| 4112 | { |
| 4113 | struct ata_host *host = dev_get_drvdata(&pdev->dev); |
| 4114 | if (host) |
| 4115 | return ata_host_suspend(host, state); |
| 4116 | else |
| 4117 | return 0; |
| 4118 | } |
| 4119 | |
| 4120 | static int mv_platform_resume(struct platform_device *pdev) |
| 4121 | { |
| 4122 | struct ata_host *host = dev_get_drvdata(&pdev->dev); |
| 4123 | int ret; |
| 4124 | |
| 4125 | if (host) { |
| 4126 | struct mv_host_priv *hpriv = host->private_data; |
| 4127 | const struct mv_sata_platform_data *mv_platform_data = \ |
| 4128 | pdev->dev.platform_data; |
| 4129 | /* |
| 4130 | * (Re-)program MBUS remapping windows if we are asked to. |
| 4131 | */ |
| 4132 | if (mv_platform_data->dram != NULL) |
| 4133 | mv_conf_mbus_windows(hpriv, mv_platform_data->dram); |
| 4134 | |
| 4135 | /* initialize adapter */ |
Saeed Bishara | 1bfeff0 | 2009-12-17 01:05:00 -0500 | [diff] [blame] | 4136 | ret = mv_init_host(host); |
Saeed Bishara | 6481f2b | 2009-12-06 18:26:19 +0200 | [diff] [blame] | 4137 | if (ret) { |
| 4138 | printk(KERN_ERR DRV_NAME ": Error during HW init\n"); |
| 4139 | return ret; |
| 4140 | } |
| 4141 | ata_host_resume(host); |
| 4142 | } |
| 4143 | |
| 4144 | return 0; |
| 4145 | } |
| 4146 | #else |
| 4147 | #define mv_platform_suspend NULL |
| 4148 | #define mv_platform_resume NULL |
| 4149 | #endif |
| 4150 | |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4151 | static struct platform_driver mv_platform_driver = { |
| 4152 | .probe = mv_platform_probe, |
| 4153 | .remove = __devexit_p(mv_platform_remove), |
Saeed Bishara | 6481f2b | 2009-12-06 18:26:19 +0200 | [diff] [blame] | 4154 | .suspend = mv_platform_suspend, |
| 4155 | .resume = mv_platform_resume, |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4156 | .driver = { |
| 4157 | .name = DRV_NAME, |
| 4158 | .owner = THIS_MODULE, |
| 4159 | }, |
| 4160 | }; |
| 4161 | |
| 4162 | |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4163 | #ifdef CONFIG_PCI |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4164 | static int mv_pci_init_one(struct pci_dev *pdev, |
| 4165 | const struct pci_device_id *ent); |
Saeed Bishara | b2dec48 | 2009-12-06 18:26:22 +0200 | [diff] [blame] | 4166 | #ifdef CONFIG_PM |
| 4167 | static int mv_pci_device_resume(struct pci_dev *pdev); |
| 4168 | #endif |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4169 | |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4170 | |
| 4171 | static struct pci_driver mv_pci_driver = { |
| 4172 | .name = DRV_NAME, |
| 4173 | .id_table = mv_pci_tbl, |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4174 | .probe = mv_pci_init_one, |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4175 | .remove = ata_pci_remove_one, |
Saeed Bishara | b2dec48 | 2009-12-06 18:26:22 +0200 | [diff] [blame] | 4176 | #ifdef CONFIG_PM |
| 4177 | .suspend = ata_pci_device_suspend, |
| 4178 | .resume = mv_pci_device_resume, |
| 4179 | #endif |
| 4180 | |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4181 | }; |
| 4182 | |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4183 | /* move to PCI layer or libata core? */ |
| 4184 | static int pci_go_64(struct pci_dev *pdev) |
| 4185 | { |
| 4186 | int rc; |
| 4187 | |
Yang Hongyang | 6a35528 | 2009-04-06 19:01:13 -0700 | [diff] [blame] | 4188 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { |
| 4189 | rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4190 | if (rc) { |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 4191 | rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4192 | if (rc) { |
| 4193 | dev_printk(KERN_ERR, &pdev->dev, |
| 4194 | "64-bit DMA enable failed\n"); |
| 4195 | return rc; |
| 4196 | } |
| 4197 | } |
| 4198 | } else { |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 4199 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4200 | if (rc) { |
| 4201 | dev_printk(KERN_ERR, &pdev->dev, |
| 4202 | "32-bit DMA enable failed\n"); |
| 4203 | return rc; |
| 4204 | } |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 4205 | rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4206 | if (rc) { |
| 4207 | dev_printk(KERN_ERR, &pdev->dev, |
| 4208 | "32-bit consistent DMA enable failed\n"); |
| 4209 | return rc; |
| 4210 | } |
| 4211 | } |
| 4212 | |
| 4213 | return rc; |
| 4214 | } |
| 4215 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 4216 | /** |
| 4217 | * mv_print_info - Dump key info to kernel log for perusal. |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4218 | * @host: ATA host to print info about |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 4219 | * |
| 4220 | * FIXME: complete this. |
| 4221 | * |
| 4222 | * LOCKING: |
| 4223 | * Inherited from caller. |
| 4224 | */ |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4225 | static void mv_print_info(struct ata_host *host) |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 4226 | { |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4227 | struct pci_dev *pdev = to_pci_dev(host->dev); |
| 4228 | struct mv_host_priv *hpriv = host->private_data; |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 4229 | u8 scc; |
Jeff Garzik | c1e4fe7 | 2007-07-09 12:29:31 -0400 | [diff] [blame] | 4230 | const char *scc_s, *gen; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 4231 | |
| 4232 | /* Use this to determine the HW stepping of the chip so we know |
| 4233 | * what errata to workaround |
| 4234 | */ |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 4235 | pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &scc); |
| 4236 | if (scc == 0) |
| 4237 | scc_s = "SCSI"; |
| 4238 | else if (scc == 0x01) |
| 4239 | scc_s = "RAID"; |
| 4240 | else |
Jeff Garzik | c1e4fe7 | 2007-07-09 12:29:31 -0400 | [diff] [blame] | 4241 | scc_s = "?"; |
| 4242 | |
| 4243 | if (IS_GEN_I(hpriv)) |
| 4244 | gen = "I"; |
| 4245 | else if (IS_GEN_II(hpriv)) |
| 4246 | gen = "II"; |
| 4247 | else if (IS_GEN_IIE(hpriv)) |
| 4248 | gen = "IIE"; |
| 4249 | else |
| 4250 | gen = "?"; |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 4251 | |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 4252 | dev_printk(KERN_INFO, &pdev->dev, |
Jeff Garzik | c1e4fe7 | 2007-07-09 12:29:31 -0400 | [diff] [blame] | 4253 | "Gen-%s %u slots %u ports %s mode IRQ via %s\n", |
| 4254 | gen, (unsigned)MV_MAX_Q_DEPTH, host->n_ports, |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 4255 | scc_s, (MV_HP_FLAG_MSI & hpriv->hp_flags) ? "MSI" : "INTx"); |
| 4256 | } |
| 4257 | |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 4258 | /** |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4259 | * mv_pci_init_one - handle a positive probe of a PCI Marvell host |
Brett Russ | 05b308e | 2005-10-05 17:08:53 -0400 | [diff] [blame] | 4260 | * @pdev: PCI device found |
| 4261 | * @ent: PCI device ID entry for the matched host |
| 4262 | * |
| 4263 | * LOCKING: |
| 4264 | * Inherited from caller. |
| 4265 | */ |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4266 | static int mv_pci_init_one(struct pci_dev *pdev, |
| 4267 | const struct pci_device_id *ent) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4268 | { |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 4269 | static int printed_version; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4270 | unsigned int board_idx = (unsigned int)ent->driver_data; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4271 | const struct ata_port_info *ppi[] = { &mv_port_info[board_idx], NULL }; |
| 4272 | struct ata_host *host; |
| 4273 | struct mv_host_priv *hpriv; |
Saeed Bishara | c4bc7d7 | 2009-12-06 18:26:20 +0200 | [diff] [blame] | 4274 | int n_ports, port, rc; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4275 | |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 4276 | if (!printed_version++) |
| 4277 | dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4278 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4279 | /* allocate host */ |
| 4280 | n_ports = mv_get_hc_count(ppi[0]->flags) * MV_PORTS_PER_HC; |
| 4281 | |
| 4282 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); |
| 4283 | hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); |
| 4284 | if (!host || !hpriv) |
| 4285 | return -ENOMEM; |
| 4286 | host->private_data = hpriv; |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4287 | hpriv->n_ports = n_ports; |
Saeed Bishara | 1bfeff0 | 2009-12-17 01:05:00 -0500 | [diff] [blame] | 4288 | hpriv->board_idx = board_idx; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4289 | |
| 4290 | /* acquire resources */ |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 4291 | rc = pcim_enable_device(pdev); |
| 4292 | if (rc) |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4293 | return rc; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4294 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 4295 | rc = pcim_iomap_regions(pdev, 1 << MV_PRIMARY_BAR, DRV_NAME); |
| 4296 | if (rc == -EBUSY) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 4297 | pcim_pin_device(pdev); |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 4298 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 4299 | return rc; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4300 | host->iomap = pcim_iomap_table(pdev); |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4301 | hpriv->base = host->iomap[MV_PRIMARY_BAR]; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4302 | |
Jeff Garzik | d88184f | 2007-02-26 01:26:06 -0500 | [diff] [blame] | 4303 | rc = pci_go_64(pdev); |
| 4304 | if (rc) |
| 4305 | return rc; |
| 4306 | |
Mark Lord | da2fa9b | 2008-01-26 18:32:45 -0500 | [diff] [blame] | 4307 | rc = mv_create_dma_pools(hpriv, &pdev->dev); |
| 4308 | if (rc) |
| 4309 | return rc; |
| 4310 | |
Saeed Bishara | c4bc7d7 | 2009-12-06 18:26:20 +0200 | [diff] [blame] | 4311 | for (port = 0; port < host->n_ports; port++) { |
| 4312 | struct ata_port *ap = host->ports[port]; |
| 4313 | void __iomem *port_mmio = mv_port_base(hpriv->base, port); |
| 4314 | unsigned int offset = port_mmio - hpriv->base; |
| 4315 | |
| 4316 | ata_port_pbar_desc(ap, MV_PRIMARY_BAR, -1, "mmio"); |
| 4317 | ata_port_pbar_desc(ap, MV_PRIMARY_BAR, offset, "port"); |
| 4318 | } |
| 4319 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4320 | /* initialize adapter */ |
Saeed Bishara | 1bfeff0 | 2009-12-17 01:05:00 -0500 | [diff] [blame] | 4321 | rc = mv_init_host(host); |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 4322 | if (rc) |
| 4323 | return rc; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4324 | |
Mark Lord | 6d3c30e | 2009-01-21 10:31:29 -0500 | [diff] [blame] | 4325 | /* Enable message-switched interrupts, if requested */ |
| 4326 | if (msi && pci_enable_msi(pdev) == 0) |
| 4327 | hpriv->hp_flags |= MV_HP_FLAG_MSI; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4328 | |
Brett Russ | 3196194 | 2005-09-30 01:36:00 -0400 | [diff] [blame] | 4329 | mv_dump_pci_cfg(pdev, 0x68); |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4330 | mv_print_info(host); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4331 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4332 | pci_set_master(pdev); |
Jeff Garzik | ea8b4db | 2007-07-17 02:21:50 -0400 | [diff] [blame] | 4333 | pci_try_set_mwi(pdev); |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 4334 | return ata_host_activate(host, pdev->irq, mv_interrupt, IRQF_SHARED, |
Jeff Garzik | c5d3e45 | 2007-07-11 18:30:50 -0400 | [diff] [blame] | 4335 | IS_GEN_I(hpriv) ? &mv5_sht : &mv6_sht); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4336 | } |
Saeed Bishara | b2dec48 | 2009-12-06 18:26:22 +0200 | [diff] [blame] | 4337 | |
| 4338 | #ifdef CONFIG_PM |
| 4339 | static int mv_pci_device_resume(struct pci_dev *pdev) |
| 4340 | { |
| 4341 | struct ata_host *host = dev_get_drvdata(&pdev->dev); |
| 4342 | int rc; |
| 4343 | |
| 4344 | rc = ata_pci_device_do_resume(pdev); |
| 4345 | if (rc) |
| 4346 | return rc; |
| 4347 | |
| 4348 | /* initialize adapter */ |
| 4349 | rc = mv_init_host(host); |
| 4350 | if (rc) |
| 4351 | return rc; |
| 4352 | |
| 4353 | ata_host_resume(host); |
| 4354 | |
| 4355 | return 0; |
| 4356 | } |
| 4357 | #endif |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4358 | #endif |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4359 | |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4360 | static int mv_platform_probe(struct platform_device *pdev); |
| 4361 | static int __devexit mv_platform_remove(struct platform_device *pdev); |
| 4362 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4363 | static int __init mv_init(void) |
| 4364 | { |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4365 | int rc = -ENODEV; |
| 4366 | #ifdef CONFIG_PCI |
| 4367 | rc = pci_register_driver(&mv_pci_driver); |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4368 | if (rc < 0) |
| 4369 | return rc; |
| 4370 | #endif |
| 4371 | rc = platform_driver_register(&mv_platform_driver); |
| 4372 | |
| 4373 | #ifdef CONFIG_PCI |
| 4374 | if (rc < 0) |
| 4375 | pci_unregister_driver(&mv_pci_driver); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4376 | #endif |
| 4377 | return rc; |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4378 | } |
| 4379 | |
| 4380 | static void __exit mv_exit(void) |
| 4381 | { |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4382 | #ifdef CONFIG_PCI |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4383 | pci_unregister_driver(&mv_pci_driver); |
Saeed Bishara | 7bb3c52 | 2008-01-30 11:50:45 -1100 | [diff] [blame] | 4384 | #endif |
Saeed Bishara | f351b2d | 2008-02-01 18:08:03 -0500 | [diff] [blame] | 4385 | platform_driver_unregister(&mv_platform_driver); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4386 | } |
| 4387 | |
| 4388 | MODULE_AUTHOR("Brett Russ"); |
| 4389 | MODULE_DESCRIPTION("SCSI low-level driver for Marvell SATA controllers"); |
| 4390 | MODULE_LICENSE("GPL"); |
| 4391 | MODULE_DEVICE_TABLE(pci, mv_pci_tbl); |
| 4392 | MODULE_VERSION(DRV_VERSION); |
Mark Lord | 17c5aab | 2008-04-16 14:56:51 -0400 | [diff] [blame] | 4393 | MODULE_ALIAS("platform:" DRV_NAME); |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4394 | |
Brett Russ | 20f733e | 2005-09-01 18:26:17 -0400 | [diff] [blame] | 4395 | module_init(mv_init); |
| 4396 | module_exit(mv_exit); |