Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * sata_promise.c - Promise SATA |
| 3 | * |
| 4 | * Maintained by: Jeff Garzik <jgarzik@pobox.com> |
| 5 | * Please ALWAYS copy linux-ide@vger.kernel.org |
| 6 | * on emails. |
| 7 | * |
| 8 | * Copyright 2003-2004 Red Hat, Inc. |
| 9 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | * |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2, or (at your option) |
| 14 | * any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; see the file COPYING. If not, write to |
| 23 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | * |
| 25 | * |
| 26 | * libata documentation is available via 'make {ps|pdf}docs', |
| 27 | * as Documentation/DocBook/libata.* |
| 28 | * |
| 29 | * Hardware information only available under NDA. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | * |
| 31 | */ |
| 32 | |
| 33 | #include <linux/kernel.h> |
| 34 | #include <linux/module.h> |
| 35 | #include <linux/pci.h> |
| 36 | #include <linux/init.h> |
| 37 | #include <linux/blkdev.h> |
| 38 | #include <linux/delay.h> |
| 39 | #include <linux/interrupt.h> |
| 40 | #include <linux/sched.h> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 41 | #include <linux/device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <scsi/scsi_host.h> |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 43 | #include <scsi/scsi_cmnd.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <linux/libata.h> |
| 45 | #include <asm/io.h> |
| 46 | #include "sata_promise.h" |
| 47 | |
| 48 | #define DRV_NAME "sata_promise" |
Jeff Garzik | 46b027c | 2006-11-14 14:46:17 -0500 | [diff] [blame] | 49 | #define DRV_VERSION "1.05" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | |
| 52 | enum { |
| 53 | PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */ |
| 54 | PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | PDC_FLASH_CTL = 0x44, /* Flash control register */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */ |
| 57 | PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */ |
| 58 | PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 59 | PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */ |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 60 | PDC_TBG_MODE = 0x41C, /* TBG mode (not SATAII) */ |
| 61 | PDC_SLEW_CTL = 0x470, /* slew rate control reg (not SATAII) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | |
| 63 | PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) | |
| 64 | (1<<8) | (1<<9) | (1<<10), |
| 65 | |
| 66 | board_2037x = 0, /* FastTrak S150 TX2plus */ |
| 67 | board_20319 = 1, /* FastTrak S150 TX4 */ |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 68 | board_20619 = 2, /* FastTrak TX4000 */ |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 69 | board_2057x = 3, /* SATAII150 Tx2plus */ |
| 70 | board_40518 = 4, /* SATAII150 Tx4 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 72 | PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | |
| 74 | PDC_RESET = (1 << 11), /* HDMA reset */ |
Jeff Garzik | 5063019 | 2005-12-13 02:29:45 -0500 | [diff] [blame] | 75 | |
| 76 | PDC_COMMON_FLAGS = ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST | |
Jeff Garzik | 3d0a59c | 2005-12-13 22:28:19 -0500 | [diff] [blame] | 77 | ATA_FLAG_MMIO | ATA_FLAG_NO_ATAPI | |
| 78 | ATA_FLAG_PIO_POLLING, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 79 | |
| 80 | /* hp->flags bits */ |
| 81 | PDC_FLAG_GEN_II = (1 << 0), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | }; |
| 83 | |
| 84 | |
| 85 | struct pdc_port_priv { |
| 86 | u8 *pkt; |
| 87 | dma_addr_t pkt_dma; |
| 88 | }; |
| 89 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 90 | struct pdc_host_priv { |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 91 | unsigned long flags; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 92 | }; |
| 93 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg); |
| 95 | static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); |
| 96 | static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 97 | static irqreturn_t pdc_interrupt (int irq, void *dev_instance); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | static void pdc_eng_timeout(struct ata_port *ap); |
| 99 | static int pdc_port_start(struct ata_port *ap); |
| 100 | static void pdc_port_stop(struct ata_port *ap); |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 101 | static void pdc_pata_phy_reset(struct ata_port *ap); |
| 102 | static void pdc_sata_phy_reset(struct ata_port *ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | static void pdc_qc_prep(struct ata_queued_cmd *qc); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 104 | static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf); |
| 105 | static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | static void pdc_irq_clear(struct ata_port *ap); |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 107 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 108 | static void pdc_host_stop(struct ata_host *host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 110 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 111 | static struct scsi_host_template pdc_ata_sht = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | .module = THIS_MODULE, |
| 113 | .name = DRV_NAME, |
| 114 | .ioctl = ata_scsi_ioctl, |
| 115 | .queuecommand = ata_scsi_queuecmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | .can_queue = ATA_DEF_QUEUE, |
| 117 | .this_id = ATA_SHT_THIS_ID, |
| 118 | .sg_tablesize = LIBATA_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 120 | .emulated = ATA_SHT_EMULATED, |
| 121 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 122 | .proc_name = DRV_NAME, |
| 123 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 124 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | ccf68c3 | 2006-05-31 18:28:09 +0900 | [diff] [blame] | 125 | .slave_destroy = ata_scsi_slave_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | .bios_param = ata_std_bios_param, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | }; |
| 128 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 129 | static const struct ata_port_operations pdc_sata_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | .port_disable = ata_port_disable, |
| 131 | .tf_load = pdc_tf_load_mmio, |
| 132 | .tf_read = ata_tf_read, |
| 133 | .check_status = ata_check_status, |
| 134 | .exec_command = pdc_exec_command_mmio, |
| 135 | .dev_select = ata_std_dev_select, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 136 | |
| 137 | .phy_reset = pdc_sata_phy_reset, |
| 138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | .qc_prep = pdc_qc_prep, |
| 140 | .qc_issue = pdc_qc_issue_prot, |
| 141 | .eng_timeout = pdc_eng_timeout, |
Alan Cox | a6b2c5d | 2006-05-22 16:59:59 +0100 | [diff] [blame] | 142 | .data_xfer = ata_mmio_data_xfer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | .irq_handler = pdc_interrupt, |
| 144 | .irq_clear = pdc_irq_clear, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 145 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | .scr_read = pdc_sata_scr_read, |
| 147 | .scr_write = pdc_sata_scr_write, |
| 148 | .port_start = pdc_port_start, |
| 149 | .port_stop = pdc_port_stop, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 150 | .host_stop = pdc_host_stop, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | }; |
| 152 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 153 | static const struct ata_port_operations pdc_pata_ops = { |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 154 | .port_disable = ata_port_disable, |
| 155 | .tf_load = pdc_tf_load_mmio, |
| 156 | .tf_read = ata_tf_read, |
| 157 | .check_status = ata_check_status, |
| 158 | .exec_command = pdc_exec_command_mmio, |
| 159 | .dev_select = ata_std_dev_select, |
| 160 | |
| 161 | .phy_reset = pdc_pata_phy_reset, |
| 162 | |
| 163 | .qc_prep = pdc_qc_prep, |
| 164 | .qc_issue = pdc_qc_issue_prot, |
Alan Cox | a6b2c5d | 2006-05-22 16:59:59 +0100 | [diff] [blame] | 165 | .data_xfer = ata_mmio_data_xfer, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 166 | .eng_timeout = pdc_eng_timeout, |
| 167 | .irq_handler = pdc_interrupt, |
| 168 | .irq_clear = pdc_irq_clear, |
| 169 | |
| 170 | .port_start = pdc_port_start, |
| 171 | .port_stop = pdc_port_stop, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 172 | .host_stop = pdc_host_stop, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 173 | }; |
| 174 | |
Arjan van de Ven | 98ac62d | 2005-11-28 10:06:23 +0100 | [diff] [blame] | 175 | static const struct ata_port_info pdc_port_info[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | /* board_2037x */ |
| 177 | { |
| 178 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 179 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | .pio_mask = 0x1f, /* pio0-4 */ |
| 181 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 182 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 183 | .port_ops = &pdc_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | }, |
| 185 | |
| 186 | /* board_20319 */ |
| 187 | { |
| 188 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 189 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | .pio_mask = 0x1f, /* pio0-4 */ |
| 191 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 192 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 193 | .port_ops = &pdc_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | }, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 195 | |
| 196 | /* board_20619 */ |
| 197 | { |
| 198 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 199 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 200 | .pio_mask = 0x1f, /* pio0-4 */ |
| 201 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 202 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 203 | .port_ops = &pdc_pata_ops, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 204 | }, |
Yusuf Iskenderoglu | 5a46fe8 | 2006-01-17 08:06:21 -0500 | [diff] [blame] | 205 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 206 | /* board_2057x */ |
| 207 | { |
| 208 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 209 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 210 | .pio_mask = 0x1f, /* pio0-4 */ |
| 211 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 212 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
| 213 | .port_ops = &pdc_sata_ops, |
| 214 | }, |
| 215 | |
| 216 | /* board_40518 */ |
| 217 | { |
| 218 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 219 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 220 | .pio_mask = 0x1f, /* pio0-4 */ |
| 221 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 222 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
| 223 | .port_ops = &pdc_sata_ops, |
| 224 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | }; |
| 226 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 227 | static const struct pci_device_id pdc_ata_pci_tbl[] = { |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 228 | { PCI_VDEVICE(PROMISE, 0x3371), board_2037x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 229 | { PCI_VDEVICE(PROMISE, 0x3373), board_2037x }, |
| 230 | { PCI_VDEVICE(PROMISE, 0x3375), board_2037x }, |
| 231 | { PCI_VDEVICE(PROMISE, 0x3376), board_2037x }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 232 | { PCI_VDEVICE(PROMISE, 0x3570), board_2057x }, |
| 233 | { PCI_VDEVICE(PROMISE, 0x3571), board_2057x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 234 | { PCI_VDEVICE(PROMISE, 0x3574), board_2057x }, |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 235 | { PCI_VDEVICE(PROMISE, 0x3577), board_2057x }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 236 | { PCI_VDEVICE(PROMISE, 0x3d73), board_2057x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 237 | { PCI_VDEVICE(PROMISE, 0x3d75), board_2057x }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 239 | { PCI_VDEVICE(PROMISE, 0x3318), board_20319 }, |
| 240 | { PCI_VDEVICE(PROMISE, 0x3319), board_20319 }, |
| 241 | { PCI_VDEVICE(PROMISE, 0x3515), board_20319 }, |
| 242 | { PCI_VDEVICE(PROMISE, 0x3519), board_20319 }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 243 | { PCI_VDEVICE(PROMISE, 0x3d17), board_40518 }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 244 | { PCI_VDEVICE(PROMISE, 0x3d18), board_40518 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 246 | { PCI_VDEVICE(PROMISE, 0x6629), board_20619 }, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 247 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | { } /* terminate list */ |
| 249 | }; |
| 250 | |
| 251 | |
| 252 | static struct pci_driver pdc_ata_pci_driver = { |
| 253 | .name = DRV_NAME, |
| 254 | .id_table = pdc_ata_pci_tbl, |
| 255 | .probe = pdc_ata_init_one, |
| 256 | .remove = ata_pci_remove_one, |
| 257 | }; |
| 258 | |
| 259 | |
| 260 | static int pdc_port_start(struct ata_port *ap) |
| 261 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 262 | struct device *dev = ap->host->dev; |
Mikael Pettersson | 599b720 | 2006-12-01 10:55:58 +0100 | [diff] [blame] | 263 | struct pdc_host_priv *hp = ap->host->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | struct pdc_port_priv *pp; |
| 265 | int rc; |
| 266 | |
| 267 | rc = ata_port_start(ap); |
| 268 | if (rc) |
| 269 | return rc; |
| 270 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 271 | pp = kzalloc(sizeof(*pp), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | if (!pp) { |
| 273 | rc = -ENOMEM; |
| 274 | goto err_out; |
| 275 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | |
| 277 | pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL); |
| 278 | if (!pp->pkt) { |
| 279 | rc = -ENOMEM; |
| 280 | goto err_out_kfree; |
| 281 | } |
| 282 | |
| 283 | ap->private_data = pp; |
| 284 | |
Mikael Pettersson | 599b720 | 2006-12-01 10:55:58 +0100 | [diff] [blame] | 285 | /* fix up PHYMODE4 align timing */ |
| 286 | if ((hp->flags & PDC_FLAG_GEN_II) && sata_scr_valid(ap)) { |
| 287 | void __iomem *mmio = (void __iomem *) ap->ioaddr.scr_addr; |
| 288 | unsigned int tmp; |
| 289 | |
| 290 | tmp = readl(mmio + 0x014); |
| 291 | tmp = (tmp & ~3) | 1; /* set bits 1:0 = 0:1 */ |
| 292 | writel(tmp, mmio + 0x014); |
| 293 | } |
| 294 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | return 0; |
| 296 | |
| 297 | err_out_kfree: |
| 298 | kfree(pp); |
| 299 | err_out: |
| 300 | ata_port_stop(ap); |
| 301 | return rc; |
| 302 | } |
| 303 | |
| 304 | |
| 305 | static void pdc_port_stop(struct ata_port *ap) |
| 306 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 307 | struct device *dev = ap->host->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | struct pdc_port_priv *pp = ap->private_data; |
| 309 | |
| 310 | ap->private_data = NULL; |
| 311 | dma_free_coherent(dev, 128, pp->pkt, pp->pkt_dma); |
| 312 | kfree(pp); |
| 313 | ata_port_stop(ap); |
| 314 | } |
| 315 | |
| 316 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 317 | static void pdc_host_stop(struct ata_host *host) |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 318 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 319 | struct pdc_host_priv *hp = host->private_data; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 320 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 321 | ata_pci_host_stop(host); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 322 | |
| 323 | kfree(hp); |
| 324 | } |
| 325 | |
| 326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | static void pdc_reset_port(struct ata_port *ap) |
| 328 | { |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 329 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | unsigned int i; |
| 331 | u32 tmp; |
| 332 | |
| 333 | for (i = 11; i > 0; i--) { |
| 334 | tmp = readl(mmio); |
| 335 | if (tmp & PDC_RESET) |
| 336 | break; |
| 337 | |
| 338 | udelay(100); |
| 339 | |
| 340 | tmp |= PDC_RESET; |
| 341 | writel(tmp, mmio); |
| 342 | } |
| 343 | |
| 344 | tmp &= ~PDC_RESET; |
| 345 | writel(tmp, mmio); |
| 346 | readl(mmio); /* flush */ |
| 347 | } |
| 348 | |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 349 | static void pdc_sata_phy_reset(struct ata_port *ap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | { |
| 351 | pdc_reset_port(ap); |
| 352 | sata_phy_reset(ap); |
| 353 | } |
| 354 | |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 355 | static void pdc_pata_cbl_detect(struct ata_port *ap) |
| 356 | { |
| 357 | u8 tmp; |
Al Viro | 03dc550 | 2006-10-10 22:48:07 +0100 | [diff] [blame] | 358 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT + 0x03; |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 359 | |
| 360 | tmp = readb(mmio); |
| 361 | |
| 362 | if (tmp & 0x01) { |
| 363 | ap->cbl = ATA_CBL_PATA40; |
| 364 | ap->udma_mask &= ATA_UDMA_MASK_40C; |
| 365 | } else |
| 366 | ap->cbl = ATA_CBL_PATA80; |
| 367 | } |
| 368 | |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 369 | static void pdc_pata_phy_reset(struct ata_port *ap) |
| 370 | { |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 371 | pdc_pata_cbl_detect(ap); |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 372 | pdc_reset_port(ap); |
| 373 | ata_port_probe(ap); |
| 374 | ata_bus_reset(ap); |
| 375 | } |
| 376 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg) |
| 378 | { |
| 379 | if (sc_reg > SCR_CONTROL) |
| 380 | return 0xffffffffU; |
Al Viro | b181d3b | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 381 | return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | |
| 385 | static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, |
| 386 | u32 val) |
| 387 | { |
| 388 | if (sc_reg > SCR_CONTROL) |
| 389 | return; |
Al Viro | b181d3b | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 390 | writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | static void pdc_qc_prep(struct ata_queued_cmd *qc) |
| 394 | { |
| 395 | struct pdc_port_priv *pp = qc->ap->private_data; |
| 396 | unsigned int i; |
| 397 | |
| 398 | VPRINTK("ENTER\n"); |
| 399 | |
| 400 | switch (qc->tf.protocol) { |
| 401 | case ATA_PROT_DMA: |
| 402 | ata_qc_prep(qc); |
| 403 | /* fall through */ |
| 404 | |
| 405 | case ATA_PROT_NODATA: |
| 406 | i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma, |
| 407 | qc->dev->devno, pp->pkt); |
| 408 | |
| 409 | if (qc->tf.flags & ATA_TFLAG_LBA48) |
| 410 | i = pdc_prep_lba48(&qc->tf, pp->pkt, i); |
| 411 | else |
| 412 | i = pdc_prep_lba28(&qc->tf, pp->pkt, i); |
| 413 | |
| 414 | pdc_pkt_footer(&qc->tf, pp->pkt, i); |
| 415 | break; |
| 416 | |
| 417 | default: |
| 418 | break; |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | static void pdc_eng_timeout(struct ata_port *ap) |
| 423 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 424 | struct ata_host *host = ap->host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | u8 drv_stat; |
| 426 | struct ata_queued_cmd *qc; |
Jeff Garzik | b8f6153 | 2005-08-25 22:01:20 -0400 | [diff] [blame] | 427 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | |
| 429 | DPRINTK("ENTER\n"); |
| 430 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 431 | spin_lock_irqsave(&host->lock, flags); |
Jeff Garzik | b8f6153 | 2005-08-25 22:01:20 -0400 | [diff] [blame] | 432 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | qc = ata_qc_from_tag(ap, ap->active_tag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | switch (qc->tf.protocol) { |
| 436 | case ATA_PROT_DMA: |
| 437 | case ATA_PROT_NODATA: |
Tejun Heo | f15a1da | 2006-05-15 20:57:56 +0900 | [diff] [blame] | 438 | ata_port_printk(ap, KERN_ERR, "command timeout\n"); |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 439 | drv_stat = ata_wait_idle(ap); |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 440 | qc->err_mask |= __ac_err_mask(drv_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | break; |
| 442 | |
| 443 | default: |
| 444 | drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
| 445 | |
Tejun Heo | f15a1da | 2006-05-15 20:57:56 +0900 | [diff] [blame] | 446 | ata_port_printk(ap, KERN_ERR, |
| 447 | "unknown timeout, cmd 0x%x stat 0x%x\n", |
| 448 | qc->tf.command, drv_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 450 | qc->err_mask |= ac_err_mask(drv_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | break; |
| 452 | } |
| 453 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 454 | spin_unlock_irqrestore(&host->lock, flags); |
Tejun Heo | f637902 | 2006-02-10 15:10:48 +0900 | [diff] [blame] | 455 | ata_eh_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | DPRINTK("EXIT\n"); |
| 457 | } |
| 458 | |
| 459 | static inline unsigned int pdc_host_intr( struct ata_port *ap, |
| 460 | struct ata_queued_cmd *qc) |
| 461 | { |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 462 | unsigned int handled = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | u32 tmp; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 464 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | |
| 466 | tmp = readl(mmio); |
| 467 | if (tmp & PDC_ERR_MASK) { |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 468 | qc->err_mask |= AC_ERR_DEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | pdc_reset_port(ap); |
| 470 | } |
| 471 | |
| 472 | switch (qc->tf.protocol) { |
| 473 | case ATA_PROT_DMA: |
| 474 | case ATA_PROT_NODATA: |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 475 | qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); |
| 476 | ata_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | handled = 1; |
| 478 | break; |
| 479 | |
| 480 | default: |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 481 | ap->stats.idle_irq++; |
| 482 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | } |
| 484 | |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 485 | return handled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | } |
| 487 | |
| 488 | static void pdc_irq_clear(struct ata_port *ap) |
| 489 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 490 | struct ata_host *host = ap->host; |
| 491 | void __iomem *mmio = host->mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | |
| 493 | readl(mmio + PDC_INT_SEQMASK); |
| 494 | } |
| 495 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 496 | static irqreturn_t pdc_interrupt (int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 498 | struct ata_host *host = dev_instance; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | struct ata_port *ap; |
| 500 | u32 mask = 0; |
| 501 | unsigned int i, tmp; |
| 502 | unsigned int handled = 0; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 503 | void __iomem *mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | |
| 505 | VPRINTK("ENTER\n"); |
| 506 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 507 | if (!host || !host->mmio_base) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | VPRINTK("QUICK EXIT\n"); |
| 509 | return IRQ_NONE; |
| 510 | } |
| 511 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 512 | mmio_base = host->mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
| 514 | /* reading should also clear interrupts */ |
| 515 | mask = readl(mmio_base + PDC_INT_SEQMASK); |
| 516 | |
| 517 | if (mask == 0xffffffff) { |
| 518 | VPRINTK("QUICK EXIT 2\n"); |
| 519 | return IRQ_NONE; |
| 520 | } |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 521 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 522 | spin_lock(&host->lock); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 523 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | mask &= 0xffff; /* only 16 tags possible */ |
| 525 | if (!mask) { |
| 526 | VPRINTK("QUICK EXIT 3\n"); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 527 | goto done_irq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | } |
| 529 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | writel(mask, mmio_base + PDC_INT_SEQMASK); |
| 531 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 532 | for (i = 0; i < host->n_ports; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | VPRINTK("port %u\n", i); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 534 | ap = host->ports[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | tmp = mask & (1 << (i + 1)); |
Tejun Heo | c138950 | 2005-08-22 14:59:24 +0900 | [diff] [blame] | 536 | if (tmp && ap && |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 537 | !(ap->flags & ATA_FLAG_DISABLED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | struct ata_queued_cmd *qc; |
| 539 | |
| 540 | qc = ata_qc_from_tag(ap, ap->active_tag); |
Albert Lee | e50362e | 2005-09-27 17:39:50 +0800 | [diff] [blame] | 541 | if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | handled += pdc_host_intr(ap, qc); |
| 543 | } |
| 544 | } |
| 545 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | VPRINTK("EXIT\n"); |
| 547 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 548 | done_irq: |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 549 | spin_unlock(&host->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | return IRQ_RETVAL(handled); |
| 551 | } |
| 552 | |
| 553 | static inline void pdc_packet_start(struct ata_queued_cmd *qc) |
| 554 | { |
| 555 | struct ata_port *ap = qc->ap; |
| 556 | struct pdc_port_priv *pp = ap->private_data; |
| 557 | unsigned int port_no = ap->port_no; |
| 558 | u8 seq = (u8) (port_no + 1); |
| 559 | |
| 560 | VPRINTK("ENTER, ap %p\n", ap); |
| 561 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 562 | writel(0x00000001, ap->host->mmio_base + (seq * 4)); |
| 563 | readl(ap->host->mmio_base + (seq * 4)); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | |
| 565 | pp->pkt[2] = seq; |
| 566 | wmb(); /* flush PRD, pkt writes */ |
Al Viro | b181d3b | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 567 | writel(pp->pkt_dma, (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); |
| 568 | readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | } |
| 570 | |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 571 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | { |
| 573 | switch (qc->tf.protocol) { |
| 574 | case ATA_PROT_DMA: |
| 575 | case ATA_PROT_NODATA: |
| 576 | pdc_packet_start(qc); |
| 577 | return 0; |
| 578 | |
| 579 | case ATA_PROT_ATAPI_DMA: |
| 580 | BUG(); |
| 581 | break; |
| 582 | |
| 583 | default: |
| 584 | break; |
| 585 | } |
| 586 | |
| 587 | return ata_qc_issue_prot(qc); |
| 588 | } |
| 589 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 590 | static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | { |
| 592 | WARN_ON (tf->protocol == ATA_PROT_DMA || |
| 593 | tf->protocol == ATA_PROT_NODATA); |
| 594 | ata_tf_load(ap, tf); |
| 595 | } |
| 596 | |
| 597 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 598 | static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | { |
| 600 | WARN_ON (tf->protocol == ATA_PROT_DMA || |
| 601 | tf->protocol == ATA_PROT_NODATA); |
| 602 | ata_exec_command(ap, tf); |
| 603 | } |
| 604 | |
| 605 | |
| 606 | static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base) |
| 607 | { |
| 608 | port->cmd_addr = base; |
| 609 | port->data_addr = base; |
| 610 | port->feature_addr = |
| 611 | port->error_addr = base + 0x4; |
| 612 | port->nsect_addr = base + 0x8; |
| 613 | port->lbal_addr = base + 0xc; |
| 614 | port->lbam_addr = base + 0x10; |
| 615 | port->lbah_addr = base + 0x14; |
| 616 | port->device_addr = base + 0x18; |
| 617 | port->command_addr = |
| 618 | port->status_addr = base + 0x1c; |
| 619 | port->altstatus_addr = |
| 620 | port->ctl_addr = base + 0x38; |
| 621 | } |
| 622 | |
| 623 | |
| 624 | static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe) |
| 625 | { |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 626 | void __iomem *mmio = pe->mmio_base; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 627 | struct pdc_host_priv *hp = pe->private_data; |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 628 | int hotplug_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | u32 tmp; |
| 630 | |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 631 | if (hp->flags & PDC_FLAG_GEN_II) |
| 632 | hotplug_offset = PDC2_SATA_PLUG_CSR; |
| 633 | else |
| 634 | hotplug_offset = PDC_SATA_PLUG_CSR; |
| 635 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | /* |
| 637 | * Except for the hotplug stuff, this is voodoo from the |
| 638 | * Promise driver. Label this entire section |
| 639 | * "TODO: figure out why we do this" |
| 640 | */ |
| 641 | |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 642 | /* enable BMR_BURST, maybe change FIFO_SHD to 8 dwords */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | tmp = readl(mmio + PDC_FLASH_CTL); |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 644 | tmp |= 0x02000; /* bit 13 (enable bmr burst) */ |
| 645 | if (!(hp->flags & PDC_FLAG_GEN_II)) |
| 646 | tmp |= 0x10000; /* bit 16 (fifo threshold at 8 dw) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | writel(tmp, mmio + PDC_FLASH_CTL); |
| 648 | |
| 649 | /* clear plug/unplug flags for all ports */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 650 | tmp = readl(mmio + hotplug_offset); |
| 651 | writel(tmp | 0xff, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | |
| 653 | /* mask plug/unplug ints */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 654 | tmp = readl(mmio + hotplug_offset); |
| 655 | writel(tmp | 0xff0000, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 657 | /* don't initialise TBG or SLEW on 2nd generation chips */ |
| 658 | if (hp->flags & PDC_FLAG_GEN_II) |
| 659 | return; |
| 660 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | /* reduce TBG clock to 133 Mhz. */ |
| 662 | tmp = readl(mmio + PDC_TBG_MODE); |
| 663 | tmp &= ~0x30000; /* clear bit 17, 16*/ |
| 664 | tmp |= 0x10000; /* set bit 17:16 = 0:1 */ |
| 665 | writel(tmp, mmio + PDC_TBG_MODE); |
| 666 | |
| 667 | readl(mmio + PDC_TBG_MODE); /* flush */ |
| 668 | msleep(10); |
| 669 | |
| 670 | /* adjust slew rate control register. */ |
| 671 | tmp = readl(mmio + PDC_SLEW_CTL); |
| 672 | tmp &= 0xFFFFF03F; /* clear bit 11 ~ 6 */ |
| 673 | tmp |= 0x00000900; /* set bit 11-9 = 100b , bit 8-6 = 100 */ |
| 674 | writel(tmp, mmio + PDC_SLEW_CTL); |
| 675 | } |
| 676 | |
| 677 | static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 678 | { |
| 679 | static int printed_version; |
| 680 | struct ata_probe_ent *probe_ent = NULL; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 681 | struct pdc_host_priv *hp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | unsigned long base; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 683 | void __iomem *mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | unsigned int board_idx = (unsigned int) ent->driver_data; |
| 685 | int pci_dev_busy = 0; |
| 686 | int rc; |
| 687 | |
| 688 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 689 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | rc = pci_enable_device(pdev); |
| 692 | if (rc) |
| 693 | return rc; |
| 694 | |
| 695 | rc = pci_request_regions(pdev, DRV_NAME); |
| 696 | if (rc) { |
| 697 | pci_dev_busy = 1; |
| 698 | goto err_out; |
| 699 | } |
| 700 | |
| 701 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 702 | if (rc) |
| 703 | goto err_out_regions; |
| 704 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 705 | if (rc) |
| 706 | goto err_out_regions; |
| 707 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 708 | probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | if (probe_ent == NULL) { |
| 710 | rc = -ENOMEM; |
| 711 | goto err_out_regions; |
| 712 | } |
| 713 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | probe_ent->dev = pci_dev_to_dev(pdev); |
| 715 | INIT_LIST_HEAD(&probe_ent->node); |
| 716 | |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 717 | mmio_base = pci_iomap(pdev, 3, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | if (mmio_base == NULL) { |
| 719 | rc = -ENOMEM; |
| 720 | goto err_out_free_ent; |
| 721 | } |
| 722 | base = (unsigned long) mmio_base; |
| 723 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 724 | hp = kzalloc(sizeof(*hp), GFP_KERNEL); |
| 725 | if (hp == NULL) { |
| 726 | rc = -ENOMEM; |
| 727 | goto err_out_free_ent; |
| 728 | } |
| 729 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 730 | probe_ent->private_data = hp; |
| 731 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | probe_ent->sht = pdc_port_info[board_idx].sht; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 733 | probe_ent->port_flags = pdc_port_info[board_idx].flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask; |
| 735 | probe_ent->mwdma_mask = pdc_port_info[board_idx].mwdma_mask; |
| 736 | probe_ent->udma_mask = pdc_port_info[board_idx].udma_mask; |
| 737 | probe_ent->port_ops = pdc_port_info[board_idx].port_ops; |
| 738 | |
| 739 | probe_ent->irq = pdev->irq; |
Thomas Gleixner | 1d6f359 | 2006-07-01 19:29:42 -0700 | [diff] [blame] | 740 | probe_ent->irq_flags = IRQF_SHARED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | probe_ent->mmio_base = mmio_base; |
| 742 | |
| 743 | pdc_ata_setup_port(&probe_ent->port[0], base + 0x200); |
| 744 | pdc_ata_setup_port(&probe_ent->port[1], base + 0x280); |
| 745 | |
| 746 | probe_ent->port[0].scr_addr = base + 0x400; |
| 747 | probe_ent->port[1].scr_addr = base + 0x500; |
| 748 | |
| 749 | /* notice 4-port boards */ |
| 750 | switch (board_idx) { |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 751 | case board_40518: |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 752 | hp->flags |= PDC_FLAG_GEN_II; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 753 | /* Fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | case board_20319: |
| 755 | probe_ent->n_ports = 4; |
| 756 | |
| 757 | pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); |
| 758 | pdc_ata_setup_port(&probe_ent->port[3], base + 0x380); |
| 759 | |
| 760 | probe_ent->port[2].scr_addr = base + 0x600; |
| 761 | probe_ent->port[3].scr_addr = base + 0x700; |
| 762 | break; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 763 | case board_2057x: |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 764 | hp->flags |= PDC_FLAG_GEN_II; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 765 | /* Fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | case board_2037x: |
Jeff Garzik | 6c9e5eb | 2005-11-30 16:42:55 -0500 | [diff] [blame] | 767 | probe_ent->n_ports = 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | break; |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 769 | case board_20619: |
| 770 | probe_ent->n_ports = 4; |
| 771 | |
| 772 | pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); |
| 773 | pdc_ata_setup_port(&probe_ent->port[3], base + 0x380); |
| 774 | |
| 775 | probe_ent->port[2].scr_addr = base + 0x600; |
| 776 | probe_ent->port[3].scr_addr = base + 0x700; |
Jeff Garzik | 6c9e5eb | 2005-11-30 16:42:55 -0500 | [diff] [blame] | 777 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | default: |
| 779 | BUG(); |
| 780 | break; |
| 781 | } |
| 782 | |
| 783 | pci_set_master(pdev); |
| 784 | |
| 785 | /* initialize adapter */ |
| 786 | pdc_host_init(board_idx, probe_ent); |
| 787 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 788 | /* FIXME: Need any other frees than hp? */ |
| 789 | if (!ata_device_add(probe_ent)) |
| 790 | kfree(hp); |
| 791 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | kfree(probe_ent); |
| 793 | |
| 794 | return 0; |
| 795 | |
| 796 | err_out_free_ent: |
| 797 | kfree(probe_ent); |
| 798 | err_out_regions: |
| 799 | pci_release_regions(pdev); |
| 800 | err_out: |
| 801 | if (!pci_dev_busy) |
| 802 | pci_disable_device(pdev); |
| 803 | return rc; |
| 804 | } |
| 805 | |
| 806 | |
| 807 | static int __init pdc_ata_init(void) |
| 808 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 809 | return pci_register_driver(&pdc_ata_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | } |
| 811 | |
| 812 | |
| 813 | static void __exit pdc_ata_exit(void) |
| 814 | { |
| 815 | pci_unregister_driver(&pdc_ata_pci_driver); |
| 816 | } |
| 817 | |
| 818 | |
| 819 | MODULE_AUTHOR("Jeff Garzik"); |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 820 | MODULE_DESCRIPTION("Promise ATA TX2/TX4/TX4000 low-level driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | MODULE_LICENSE("GPL"); |
| 822 | MODULE_DEVICE_TABLE(pci, pdc_ata_pci_tbl); |
| 823 | MODULE_VERSION(DRV_VERSION); |
| 824 | |
| 825 | module_init(pdc_ata_init); |
| 826 | module_exit(pdc_ata_exit); |