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> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 40 | #include <linux/device.h> |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 41 | #include <scsi/scsi.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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #include "sata_promise.h" |
| 46 | |
| 47 | #define DRV_NAME "sata_promise" |
Mikael Pettersson | 7f9992a | 2007-08-29 10:25:37 +0200 | [diff] [blame] | 48 | #define DRV_VERSION "2.10" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
| 50 | enum { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 51 | PDC_MAX_PORTS = 4, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 52 | PDC_MMIO_BAR = 3, |
| 53 | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 54 | /* register offsets */ |
| 55 | PDC_FEATURE = 0x04, /* Feature/Error reg (per port) */ |
| 56 | PDC_SECTOR_COUNT = 0x08, /* Sector count reg (per port) */ |
| 57 | PDC_SECTOR_NUMBER = 0x0C, /* Sector number reg (per port) */ |
| 58 | PDC_CYLINDER_LOW = 0x10, /* Cylinder low reg (per port) */ |
| 59 | PDC_CYLINDER_HIGH = 0x14, /* Cylinder high reg (per port) */ |
| 60 | PDC_DEVICE = 0x18, /* Device/Head reg (per port) */ |
| 61 | PDC_COMMAND = 0x1C, /* Command/status reg (per port) */ |
Mikael Pettersson | 73fd456 | 2007-01-10 09:32:34 +0100 | [diff] [blame] | 62 | PDC_ALTSTATUS = 0x38, /* Alternate-status/device-control reg (per port) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */ |
| 64 | PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | PDC_FLASH_CTL = 0x44, /* Flash control register */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */ |
| 67 | PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */ |
| 68 | PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 69 | PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */ |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 70 | PDC_TBG_MODE = 0x41C, /* TBG mode (not SATAII) */ |
| 71 | PDC_SLEW_CTL = 0x470, /* slew rate control reg (not SATAII) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 73 | /* PDC_GLOBAL_CTL bit definitions */ |
| 74 | PDC_PH_ERR = (1 << 8), /* PCI error while loading packet */ |
| 75 | PDC_SH_ERR = (1 << 9), /* PCI error while loading S/G table */ |
| 76 | PDC_DH_ERR = (1 << 10), /* PCI error while loading data */ |
| 77 | PDC2_HTO_ERR = (1 << 12), /* host bus timeout */ |
| 78 | PDC2_ATA_HBA_ERR = (1 << 13), /* error during SATA DATA FIS transmission */ |
| 79 | PDC2_ATA_DMA_CNT_ERR = (1 << 14), /* DMA DATA FIS size differs from S/G count */ |
| 80 | PDC_OVERRUN_ERR = (1 << 19), /* S/G byte count larger than HD requires */ |
| 81 | PDC_UNDERRUN_ERR = (1 << 20), /* S/G byte count less than HD requires */ |
| 82 | PDC_DRIVE_ERR = (1 << 21), /* drive error */ |
| 83 | PDC_PCI_SYS_ERR = (1 << 22), /* PCI system error */ |
| 84 | PDC1_PCI_PARITY_ERR = (1 << 23), /* PCI parity error (from SATA150 driver) */ |
| 85 | PDC1_ERR_MASK = PDC1_PCI_PARITY_ERR, |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 86 | PDC2_ERR_MASK = PDC2_HTO_ERR | PDC2_ATA_HBA_ERR | |
| 87 | PDC2_ATA_DMA_CNT_ERR, |
| 88 | PDC_ERR_MASK = PDC_PH_ERR | PDC_SH_ERR | PDC_DH_ERR | |
| 89 | PDC_OVERRUN_ERR | PDC_UNDERRUN_ERR | |
| 90 | PDC_DRIVE_ERR | PDC_PCI_SYS_ERR | |
| 91 | PDC1_ERR_MASK | PDC2_ERR_MASK, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | |
| 93 | board_2037x = 0, /* FastTrak S150 TX2plus */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 94 | board_2037x_pata = 1, /* FastTrak S150 TX2plus PATA port */ |
| 95 | board_20319 = 2, /* FastTrak S150 TX4 */ |
| 96 | board_20619 = 3, /* FastTrak TX4000 */ |
| 97 | board_2057x = 4, /* SATAII150 Tx2plus */ |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 98 | board_2057x_pata = 5, /* SATAII150 Tx2plus PATA port */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 99 | board_40518 = 6, /* SATAII150 Tx4 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 101 | PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 103 | /* Sequence counter control registers bit definitions */ |
| 104 | PDC_SEQCNTRL_INT_MASK = (1 << 5), /* Sequence Interrupt Mask */ |
| 105 | |
| 106 | /* Feature register values */ |
| 107 | PDC_FEATURE_ATAPI_PIO = 0x00, /* ATAPI data xfer by PIO */ |
| 108 | PDC_FEATURE_ATAPI_DMA = 0x01, /* ATAPI data xfer by DMA */ |
| 109 | |
| 110 | /* Device/Head register values */ |
| 111 | PDC_DEVICE_SATA = 0xE0, /* Device/Head value for SATA devices */ |
| 112 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 113 | /* PDC_CTLSTAT bit definitions */ |
| 114 | PDC_DMA_ENABLE = (1 << 7), |
| 115 | PDC_IRQ_DISABLE = (1 << 10), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | PDC_RESET = (1 << 11), /* HDMA reset */ |
Jeff Garzik | 5063019 | 2005-12-13 02:29:45 -0500 | [diff] [blame] | 117 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 118 | PDC_COMMON_FLAGS = ATA_FLAG_NO_LEGACY | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 119 | ATA_FLAG_MMIO | |
Jeff Garzik | 3d0a59c | 2005-12-13 22:28:19 -0500 | [diff] [blame] | 120 | ATA_FLAG_PIO_POLLING, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 121 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 122 | /* ap->flags bits */ |
| 123 | PDC_FLAG_GEN_II = (1 << 24), |
| 124 | PDC_FLAG_SATA_PATA = (1 << 25), /* supports SATA + PATA */ |
| 125 | PDC_FLAG_4_PORTS = (1 << 26), /* 4 ports */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | }; |
| 127 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | struct pdc_port_priv { |
| 129 | u8 *pkt; |
| 130 | dma_addr_t pkt_dma; |
| 131 | }; |
| 132 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 133 | static int pdc_sata_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); |
| 134 | static int pdc_sata_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 136 | static int pdc_common_port_start(struct ata_port *ap); |
| 137 | static int pdc_sata_port_start(struct ata_port *ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | static void pdc_qc_prep(struct ata_queued_cmd *qc); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 139 | static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf); |
| 140 | static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf); |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 141 | static int pdc_check_atapi_dma(struct ata_queued_cmd *qc); |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 142 | static int pdc_old_sata_check_atapi_dma(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | static void pdc_irq_clear(struct ata_port *ap); |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 144 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc); |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 145 | static void pdc_freeze(struct ata_port *ap); |
| 146 | static void pdc_thaw(struct ata_port *ap); |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 147 | static void pdc_pata_error_handler(struct ata_port *ap); |
| 148 | static void pdc_sata_error_handler(struct ata_port *ap); |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 149 | static void pdc_post_internal_cmd(struct ata_queued_cmd *qc); |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 150 | static int pdc_pata_cable_detect(struct ata_port *ap); |
| 151 | static int pdc_sata_cable_detect(struct ata_port *ap); |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 152 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 153 | static struct scsi_host_template pdc_ata_sht = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | .module = THIS_MODULE, |
| 155 | .name = DRV_NAME, |
| 156 | .ioctl = ata_scsi_ioctl, |
| 157 | .queuecommand = ata_scsi_queuecmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | .can_queue = ATA_DEF_QUEUE, |
| 159 | .this_id = ATA_SHT_THIS_ID, |
| 160 | .sg_tablesize = LIBATA_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 162 | .emulated = ATA_SHT_EMULATED, |
| 163 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 164 | .proc_name = DRV_NAME, |
| 165 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 166 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | ccf68c3 | 2006-05-31 18:28:09 +0900 | [diff] [blame] | 167 | .slave_destroy = ata_scsi_slave_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | .bios_param = ata_std_bios_param, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | }; |
| 170 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 171 | static const struct ata_port_operations pdc_sata_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | .tf_load = pdc_tf_load_mmio, |
| 173 | .tf_read = ata_tf_read, |
| 174 | .check_status = ata_check_status, |
| 175 | .exec_command = pdc_exec_command_mmio, |
| 176 | .dev_select = ata_std_dev_select, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 177 | .check_atapi_dma = pdc_check_atapi_dma, |
| 178 | |
| 179 | .qc_prep = pdc_qc_prep, |
| 180 | .qc_issue = pdc_qc_issue_prot, |
| 181 | .freeze = pdc_freeze, |
| 182 | .thaw = pdc_thaw, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 183 | .error_handler = pdc_sata_error_handler, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 184 | .post_internal_cmd = pdc_post_internal_cmd, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 185 | .cable_detect = pdc_sata_cable_detect, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 186 | .data_xfer = ata_data_xfer, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 187 | .irq_clear = pdc_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 188 | .irq_on = ata_irq_on, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 189 | |
| 190 | .scr_read = pdc_sata_scr_read, |
| 191 | .scr_write = pdc_sata_scr_write, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 192 | .port_start = pdc_sata_port_start, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 193 | }; |
| 194 | |
| 195 | /* First-generation chips need a more restrictive ->check_atapi_dma op */ |
| 196 | static const struct ata_port_operations pdc_old_sata_ops = { |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 197 | .tf_load = pdc_tf_load_mmio, |
| 198 | .tf_read = ata_tf_read, |
| 199 | .check_status = ata_check_status, |
| 200 | .exec_command = pdc_exec_command_mmio, |
| 201 | .dev_select = ata_std_dev_select, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 202 | .check_atapi_dma = pdc_old_sata_check_atapi_dma, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 203 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | .qc_prep = pdc_qc_prep, |
| 205 | .qc_issue = pdc_qc_issue_prot, |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 206 | .freeze = pdc_freeze, |
| 207 | .thaw = pdc_thaw, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 208 | .error_handler = pdc_sata_error_handler, |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 209 | .post_internal_cmd = pdc_post_internal_cmd, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 210 | .cable_detect = pdc_sata_cable_detect, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 211 | .data_xfer = ata_data_xfer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | .irq_clear = pdc_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 213 | .irq_on = ata_irq_on, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 214 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | .scr_read = pdc_sata_scr_read, |
| 216 | .scr_write = pdc_sata_scr_write, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 217 | .port_start = pdc_sata_port_start, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | }; |
| 219 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 220 | static const struct ata_port_operations pdc_pata_ops = { |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 221 | .tf_load = pdc_tf_load_mmio, |
| 222 | .tf_read = ata_tf_read, |
| 223 | .check_status = ata_check_status, |
| 224 | .exec_command = pdc_exec_command_mmio, |
| 225 | .dev_select = ata_std_dev_select, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 226 | .check_atapi_dma = pdc_check_atapi_dma, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 227 | |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 228 | .qc_prep = pdc_qc_prep, |
| 229 | .qc_issue = pdc_qc_issue_prot, |
Mikael Pettersson | 5387373 | 2007-02-11 23:19:53 +0100 | [diff] [blame] | 230 | .freeze = pdc_freeze, |
| 231 | .thaw = pdc_thaw, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 232 | .error_handler = pdc_pata_error_handler, |
Mikael Pettersson | 540477b | 2007-02-25 12:44:39 +0100 | [diff] [blame] | 233 | .post_internal_cmd = pdc_post_internal_cmd, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 234 | .cable_detect = pdc_pata_cable_detect, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 235 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 236 | .irq_clear = pdc_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 237 | .irq_on = ata_irq_on, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 238 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 239 | .port_start = pdc_common_port_start, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 240 | }; |
| 241 | |
Arjan van de Ven | 98ac62d | 2005-11-28 10:06:23 +0100 | [diff] [blame] | 242 | static const struct ata_port_info pdc_port_info[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | /* board_2037x */ |
| 244 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 245 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA | |
| 246 | PDC_FLAG_SATA_PATA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | .pio_mask = 0x1f, /* pio0-4 */ |
| 248 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 249 | .udma_mask = ATA_UDMA6, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 250 | .port_ops = &pdc_old_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | }, |
| 252 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 253 | /* board_2037x_pata */ |
| 254 | { |
| 255 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS, |
| 256 | .pio_mask = 0x1f, /* pio0-4 */ |
| 257 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 258 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 259 | .port_ops = &pdc_pata_ops, |
| 260 | }, |
| 261 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | /* board_20319 */ |
| 263 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 264 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA | |
| 265 | PDC_FLAG_4_PORTS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | .pio_mask = 0x1f, /* pio0-4 */ |
| 267 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 268 | .udma_mask = ATA_UDMA6, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 269 | .port_ops = &pdc_old_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | }, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 271 | |
| 272 | /* board_20619 */ |
| 273 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 274 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS | |
| 275 | PDC_FLAG_4_PORTS, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 276 | .pio_mask = 0x1f, /* pio0-4 */ |
| 277 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 278 | .udma_mask = ATA_UDMA6, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 279 | .port_ops = &pdc_pata_ops, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 280 | }, |
Yusuf Iskenderoglu | 5a46fe8 | 2006-01-17 08:06:21 -0500 | [diff] [blame] | 281 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 282 | /* board_2057x */ |
| 283 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 284 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA | |
| 285 | PDC_FLAG_GEN_II | PDC_FLAG_SATA_PATA, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 286 | .pio_mask = 0x1f, /* pio0-4 */ |
| 287 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 288 | .udma_mask = ATA_UDMA6, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 289 | .port_ops = &pdc_sata_ops, |
| 290 | }, |
| 291 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 292 | /* board_2057x_pata */ |
| 293 | { |
Jeff Garzik | bb31223 | 2007-05-24 23:35:59 -0400 | [diff] [blame] | 294 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 295 | PDC_FLAG_GEN_II, |
| 296 | .pio_mask = 0x1f, /* pio0-4 */ |
| 297 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 298 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 299 | .port_ops = &pdc_pata_ops, |
| 300 | }, |
| 301 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 302 | /* board_40518 */ |
| 303 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 304 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA | |
| 305 | PDC_FLAG_GEN_II | PDC_FLAG_4_PORTS, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 306 | .pio_mask = 0x1f, /* pio0-4 */ |
| 307 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 308 | .udma_mask = ATA_UDMA6, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 309 | .port_ops = &pdc_sata_ops, |
| 310 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | }; |
| 312 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 313 | static const struct pci_device_id pdc_ata_pci_tbl[] = { |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 314 | { PCI_VDEVICE(PROMISE, 0x3371), board_2037x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 315 | { PCI_VDEVICE(PROMISE, 0x3373), board_2037x }, |
| 316 | { PCI_VDEVICE(PROMISE, 0x3375), board_2037x }, |
| 317 | { PCI_VDEVICE(PROMISE, 0x3376), board_2037x }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 318 | { PCI_VDEVICE(PROMISE, 0x3570), board_2057x }, |
| 319 | { PCI_VDEVICE(PROMISE, 0x3571), board_2057x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 320 | { PCI_VDEVICE(PROMISE, 0x3574), board_2057x }, |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 321 | { PCI_VDEVICE(PROMISE, 0x3577), board_2057x }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 322 | { PCI_VDEVICE(PROMISE, 0x3d73), board_2057x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 323 | { PCI_VDEVICE(PROMISE, 0x3d75), board_2057x }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 325 | { PCI_VDEVICE(PROMISE, 0x3318), board_20319 }, |
| 326 | { PCI_VDEVICE(PROMISE, 0x3319), board_20319 }, |
Mikael Pettersson | 7f9992a | 2007-08-29 10:25:37 +0200 | [diff] [blame] | 327 | { PCI_VDEVICE(PROMISE, 0x3515), board_40518 }, |
| 328 | { PCI_VDEVICE(PROMISE, 0x3519), board_40518 }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 329 | { PCI_VDEVICE(PROMISE, 0x3d17), board_40518 }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 330 | { PCI_VDEVICE(PROMISE, 0x3d18), board_40518 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 332 | { PCI_VDEVICE(PROMISE, 0x6629), board_20619 }, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 333 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | { } /* terminate list */ |
| 335 | }; |
| 336 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | static struct pci_driver pdc_ata_pci_driver = { |
| 338 | .name = DRV_NAME, |
| 339 | .id_table = pdc_ata_pci_tbl, |
| 340 | .probe = pdc_ata_init_one, |
| 341 | .remove = ata_pci_remove_one, |
| 342 | }; |
| 343 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 344 | static int pdc_common_port_start(struct ata_port *ap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 346 | struct device *dev = ap->host->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | struct pdc_port_priv *pp; |
| 348 | int rc; |
| 349 | |
| 350 | rc = ata_port_start(ap); |
| 351 | if (rc) |
| 352 | return rc; |
| 353 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 354 | pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); |
| 355 | if (!pp) |
| 356 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 358 | pp->pkt = dmam_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL); |
| 359 | if (!pp->pkt) |
| 360 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | |
| 362 | ap->private_data = pp; |
| 363 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 364 | return 0; |
| 365 | } |
| 366 | |
| 367 | static int pdc_sata_port_start(struct ata_port *ap) |
| 368 | { |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 369 | int rc; |
| 370 | |
| 371 | rc = pdc_common_port_start(ap); |
| 372 | if (rc) |
| 373 | return rc; |
| 374 | |
Mikael Pettersson | 599b720 | 2006-12-01 10:55:58 +0100 | [diff] [blame] | 375 | /* fix up PHYMODE4 align timing */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 376 | if (ap->flags & PDC_FLAG_GEN_II) { |
Jeff Garzik | 59f9988 | 2007-05-28 07:07:20 -0400 | [diff] [blame] | 377 | void __iomem *mmio = ap->ioaddr.scr_addr; |
Mikael Pettersson | 599b720 | 2006-12-01 10:55:58 +0100 | [diff] [blame] | 378 | unsigned int tmp; |
| 379 | |
| 380 | tmp = readl(mmio + 0x014); |
| 381 | tmp = (tmp & ~3) | 1; /* set bits 1:0 = 0:1 */ |
| 382 | writel(tmp, mmio + 0x014); |
| 383 | } |
| 384 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | } |
| 387 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | static void pdc_reset_port(struct ata_port *ap) |
| 389 | { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 390 | void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | unsigned int i; |
| 392 | u32 tmp; |
| 393 | |
| 394 | for (i = 11; i > 0; i--) { |
| 395 | tmp = readl(mmio); |
| 396 | if (tmp & PDC_RESET) |
| 397 | break; |
| 398 | |
| 399 | udelay(100); |
| 400 | |
| 401 | tmp |= PDC_RESET; |
| 402 | writel(tmp, mmio); |
| 403 | } |
| 404 | |
| 405 | tmp &= ~PDC_RESET; |
| 406 | writel(tmp, mmio); |
| 407 | readl(mmio); /* flush */ |
| 408 | } |
| 409 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 410 | static int pdc_pata_cable_detect(struct ata_port *ap) |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 411 | { |
| 412 | u8 tmp; |
Jeff Garzik | 59f9988 | 2007-05-28 07:07:20 -0400 | [diff] [blame] | 413 | void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT + 0x03; |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 414 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 415 | tmp = readb(mmio); |
| 416 | if (tmp & 0x01) |
| 417 | return ATA_CBL_PATA40; |
| 418 | return ATA_CBL_PATA80; |
| 419 | } |
| 420 | |
| 421 | static int pdc_sata_cable_detect(struct ata_port *ap) |
| 422 | { |
Alan Cox | e2a9752 | 2007-03-08 23:06:47 +0000 | [diff] [blame] | 423 | return ATA_CBL_SATA; |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 424 | } |
| 425 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 426 | static int pdc_sata_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | { |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 428 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 429 | return -EINVAL; |
| 430 | *val = readl(ap->ioaddr.scr_addr + (sc_reg * 4)); |
| 431 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | } |
| 433 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 434 | static int pdc_sata_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | { |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 436 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 437 | return -EINVAL; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 438 | writel(val, ap->ioaddr.scr_addr + (sc_reg * 4)); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 439 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | } |
| 441 | |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 442 | static void pdc_atapi_pkt(struct ata_queued_cmd *qc) |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 443 | { |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 444 | struct ata_port *ap = qc->ap; |
| 445 | dma_addr_t sg_table = ap->prd_dma; |
| 446 | unsigned int cdb_len = qc->dev->cdb_len; |
| 447 | u8 *cdb = qc->cdb; |
| 448 | struct pdc_port_priv *pp = ap->private_data; |
| 449 | u8 *buf = pp->pkt; |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 450 | u32 *buf32 = (u32 *) buf; |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 451 | unsigned int dev_sel, feature, nbytes; |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 452 | |
| 453 | /* set control bits (byte 0), zero delay seq id (byte 3), |
| 454 | * and seq id (byte 2) |
| 455 | */ |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 456 | switch (qc->tf.protocol) { |
| 457 | case ATA_PROT_ATAPI_DMA: |
| 458 | if (!(qc->tf.flags & ATA_TFLAG_WRITE)) |
| 459 | buf32[0] = cpu_to_le32(PDC_PKT_READ); |
| 460 | else |
| 461 | buf32[0] = 0; |
| 462 | break; |
| 463 | case ATA_PROT_ATAPI_NODATA: |
| 464 | buf32[0] = cpu_to_le32(PDC_PKT_NODATA); |
| 465 | break; |
| 466 | default: |
| 467 | BUG(); |
| 468 | break; |
| 469 | } |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 470 | buf32[1] = cpu_to_le32(sg_table); /* S/G table addr */ |
| 471 | buf32[2] = 0; /* no next-packet */ |
| 472 | |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 473 | /* select drive */ |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 474 | if (sata_scr_valid(&ap->link)) { |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 475 | dev_sel = PDC_DEVICE_SATA; |
| 476 | } else { |
| 477 | dev_sel = ATA_DEVICE_OBS; |
| 478 | if (qc->dev->devno != 0) |
| 479 | dev_sel |= ATA_DEV1; |
| 480 | } |
| 481 | buf[12] = (1 << 5) | ATA_REG_DEVICE; |
| 482 | buf[13] = dev_sel; |
| 483 | buf[14] = (1 << 5) | ATA_REG_DEVICE | PDC_PKT_CLEAR_BSY; |
| 484 | buf[15] = dev_sel; /* once more, waiting for BSY to clear */ |
| 485 | |
| 486 | buf[16] = (1 << 5) | ATA_REG_NSECT; |
| 487 | buf[17] = 0x00; |
| 488 | buf[18] = (1 << 5) | ATA_REG_LBAL; |
| 489 | buf[19] = 0x00; |
| 490 | |
| 491 | /* set feature and byte counter registers */ |
| 492 | if (qc->tf.protocol != ATA_PROT_ATAPI_DMA) { |
| 493 | feature = PDC_FEATURE_ATAPI_PIO; |
| 494 | /* set byte counter register to real transfer byte count */ |
| 495 | nbytes = qc->nbytes; |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 496 | if (nbytes > 0xffff) |
| 497 | nbytes = 0xffff; |
| 498 | } else { |
| 499 | feature = PDC_FEATURE_ATAPI_DMA; |
| 500 | /* set byte counter register to 0 */ |
| 501 | nbytes = 0; |
| 502 | } |
| 503 | buf[20] = (1 << 5) | ATA_REG_FEATURE; |
| 504 | buf[21] = feature; |
| 505 | buf[22] = (1 << 5) | ATA_REG_BYTEL; |
| 506 | buf[23] = nbytes & 0xFF; |
| 507 | buf[24] = (1 << 5) | ATA_REG_BYTEH; |
| 508 | buf[25] = (nbytes >> 8) & 0xFF; |
| 509 | |
| 510 | /* send ATAPI packet command 0xA0 */ |
| 511 | buf[26] = (1 << 5) | ATA_REG_CMD; |
| 512 | buf[27] = ATA_CMD_PACKET; |
| 513 | |
| 514 | /* select drive and check DRQ */ |
| 515 | buf[28] = (1 << 5) | ATA_REG_DEVICE | PDC_PKT_WAIT_DRDY; |
| 516 | buf[29] = dev_sel; |
| 517 | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 518 | /* we can represent cdb lengths 2/4/6/8/10/12/14/16 */ |
| 519 | BUG_ON(cdb_len & ~0x1E); |
| 520 | |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 521 | /* append the CDB as the final part */ |
| 522 | buf[30] = (((cdb_len >> 1) & 7) << 5) | ATA_REG_DATA | PDC_LAST_REG; |
| 523 | memcpy(buf+31, cdb, cdb_len); |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 524 | } |
| 525 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | static void pdc_qc_prep(struct ata_queued_cmd *qc) |
| 527 | { |
| 528 | struct pdc_port_priv *pp = qc->ap->private_data; |
| 529 | unsigned int i; |
| 530 | |
| 531 | VPRINTK("ENTER\n"); |
| 532 | |
| 533 | switch (qc->tf.protocol) { |
| 534 | case ATA_PROT_DMA: |
| 535 | ata_qc_prep(qc); |
| 536 | /* fall through */ |
| 537 | |
| 538 | case ATA_PROT_NODATA: |
| 539 | i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma, |
| 540 | qc->dev->devno, pp->pkt); |
| 541 | |
| 542 | if (qc->tf.flags & ATA_TFLAG_LBA48) |
| 543 | i = pdc_prep_lba48(&qc->tf, pp->pkt, i); |
| 544 | else |
| 545 | i = pdc_prep_lba28(&qc->tf, pp->pkt, i); |
| 546 | |
| 547 | pdc_pkt_footer(&qc->tf, pp->pkt, i); |
| 548 | break; |
| 549 | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 550 | case ATA_PROT_ATAPI: |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 551 | ata_qc_prep(qc); |
| 552 | break; |
| 553 | |
| 554 | case ATA_PROT_ATAPI_DMA: |
| 555 | ata_qc_prep(qc); |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 556 | /*FALLTHROUGH*/ |
| 557 | case ATA_PROT_ATAPI_NODATA: |
| 558 | pdc_atapi_pkt(qc); |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 559 | break; |
| 560 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | default: |
| 562 | break; |
| 563 | } |
| 564 | } |
| 565 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 566 | static void pdc_freeze(struct ata_port *ap) |
| 567 | { |
Jeff Garzik | 59f9988 | 2007-05-28 07:07:20 -0400 | [diff] [blame] | 568 | void __iomem *mmio = ap->ioaddr.cmd_addr; |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 569 | u32 tmp; |
| 570 | |
| 571 | tmp = readl(mmio + PDC_CTLSTAT); |
| 572 | tmp |= PDC_IRQ_DISABLE; |
| 573 | tmp &= ~PDC_DMA_ENABLE; |
| 574 | writel(tmp, mmio + PDC_CTLSTAT); |
| 575 | readl(mmio + PDC_CTLSTAT); /* flush */ |
| 576 | } |
| 577 | |
| 578 | static void pdc_thaw(struct ata_port *ap) |
| 579 | { |
Jeff Garzik | 59f9988 | 2007-05-28 07:07:20 -0400 | [diff] [blame] | 580 | void __iomem *mmio = ap->ioaddr.cmd_addr; |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 581 | u32 tmp; |
| 582 | |
| 583 | /* clear IRQ */ |
| 584 | readl(mmio + PDC_INT_SEQMASK); |
| 585 | |
| 586 | /* turn IRQ back on */ |
| 587 | tmp = readl(mmio + PDC_CTLSTAT); |
| 588 | tmp &= ~PDC_IRQ_DISABLE; |
| 589 | writel(tmp, mmio + PDC_CTLSTAT); |
| 590 | readl(mmio + PDC_CTLSTAT); /* flush */ |
| 591 | } |
| 592 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 593 | static void pdc_common_error_handler(struct ata_port *ap, ata_reset_fn_t hardreset) |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 594 | { |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 595 | if (!(ap->pflags & ATA_PFLAG_FROZEN)) |
| 596 | pdc_reset_port(ap); |
| 597 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 598 | /* perform recovery */ |
Alan Cox | e2a9752 | 2007-03-08 23:06:47 +0000 | [diff] [blame] | 599 | ata_do_eh(ap, ata_std_prereset, ata_std_softreset, hardreset, |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 600 | ata_std_postreset); |
| 601 | } |
| 602 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 603 | static void pdc_pata_error_handler(struct ata_port *ap) |
| 604 | { |
| 605 | pdc_common_error_handler(ap, NULL); |
| 606 | } |
| 607 | |
| 608 | static void pdc_sata_error_handler(struct ata_port *ap) |
| 609 | { |
| 610 | pdc_common_error_handler(ap, sata_std_hardreset); |
| 611 | } |
| 612 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 613 | static void pdc_post_internal_cmd(struct ata_queued_cmd *qc) |
| 614 | { |
| 615 | struct ata_port *ap = qc->ap; |
| 616 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 617 | /* make DMA engine forget about the failed command */ |
Tejun Heo | a51d644 | 2007-03-20 15:24:11 +0900 | [diff] [blame] | 618 | if (qc->flags & ATA_QCFLAG_FAILED) |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 619 | pdc_reset_port(ap); |
| 620 | } |
| 621 | |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 622 | static void pdc_error_intr(struct ata_port *ap, struct ata_queued_cmd *qc, |
| 623 | u32 port_status, u32 err_mask) |
| 624 | { |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 625 | struct ata_eh_info *ehi = &ap->link.eh_info; |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 626 | unsigned int ac_err_mask = 0; |
| 627 | |
| 628 | ata_ehi_clear_desc(ehi); |
| 629 | ata_ehi_push_desc(ehi, "port_status 0x%08x", port_status); |
| 630 | port_status &= err_mask; |
| 631 | |
| 632 | if (port_status & PDC_DRIVE_ERR) |
| 633 | ac_err_mask |= AC_ERR_DEV; |
| 634 | if (port_status & (PDC_OVERRUN_ERR | PDC_UNDERRUN_ERR)) |
| 635 | ac_err_mask |= AC_ERR_HSM; |
| 636 | if (port_status & (PDC2_ATA_HBA_ERR | PDC2_ATA_DMA_CNT_ERR)) |
| 637 | ac_err_mask |= AC_ERR_ATA_BUS; |
| 638 | if (port_status & (PDC_PH_ERR | PDC_SH_ERR | PDC_DH_ERR | PDC2_HTO_ERR |
| 639 | | PDC_PCI_SYS_ERR | PDC1_PCI_PARITY_ERR)) |
| 640 | ac_err_mask |= AC_ERR_HOST_BUS; |
| 641 | |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 642 | if (sata_scr_valid(&ap->link)) { |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 643 | u32 serror; |
| 644 | |
| 645 | pdc_sata_scr_read(ap, SCR_ERROR, &serror); |
| 646 | ehi->serror |= serror; |
| 647 | } |
Mikael Pettersson | ce2d3ab | 2007-04-07 14:29:51 +0200 | [diff] [blame] | 648 | |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 649 | qc->err_mask |= ac_err_mask; |
Mikael Pettersson | ce2d3ab | 2007-04-07 14:29:51 +0200 | [diff] [blame] | 650 | |
| 651 | pdc_reset_port(ap); |
Mikael Pettersson | 8ffcfd9 | 2007-05-06 22:12:31 +0200 | [diff] [blame] | 652 | |
| 653 | ata_port_abort(ap); |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 654 | } |
| 655 | |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 656 | static inline unsigned int pdc_host_intr(struct ata_port *ap, |
| 657 | struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | { |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 659 | unsigned int handled = 0; |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 660 | void __iomem *port_mmio = ap->ioaddr.cmd_addr; |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 661 | u32 port_status, err_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 663 | err_mask = PDC_ERR_MASK; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 664 | if (ap->flags & PDC_FLAG_GEN_II) |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 665 | err_mask &= ~PDC1_ERR_MASK; |
| 666 | else |
| 667 | err_mask &= ~PDC2_ERR_MASK; |
| 668 | port_status = readl(port_mmio + PDC_GLOBAL_CTL); |
| 669 | if (unlikely(port_status & err_mask)) { |
| 670 | pdc_error_intr(ap, qc, port_status, err_mask); |
| 671 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | } |
| 673 | |
| 674 | switch (qc->tf.protocol) { |
| 675 | case ATA_PROT_DMA: |
| 676 | case ATA_PROT_NODATA: |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 677 | case ATA_PROT_ATAPI_DMA: |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 678 | case ATA_PROT_ATAPI_NODATA: |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 679 | qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); |
| 680 | ata_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | handled = 1; |
| 682 | break; |
| 683 | |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 684 | default: |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 685 | ap->stats.idle_irq++; |
| 686 | break; |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 687 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 689 | return handled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | } |
| 691 | |
| 692 | static void pdc_irq_clear(struct ata_port *ap) |
| 693 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 694 | struct ata_host *host = ap->host; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 695 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | |
| 697 | readl(mmio + PDC_INT_SEQMASK); |
| 698 | } |
| 699 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 700 | static int pdc_is_sataii_tx4(unsigned long flags) |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 701 | { |
| 702 | const unsigned long mask = PDC_FLAG_GEN_II | PDC_FLAG_4_PORTS; |
| 703 | return (flags & mask) == mask; |
| 704 | } |
| 705 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 706 | static unsigned int pdc_port_no_to_ata_no(unsigned int port_no, |
| 707 | int is_sataii_tx4) |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 708 | { |
| 709 | static const unsigned char sataii_tx4_port_remap[4] = { 3, 1, 0, 2}; |
| 710 | return is_sataii_tx4 ? sataii_tx4_port_remap[port_no] : port_no; |
| 711 | } |
| 712 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 713 | static irqreturn_t pdc_interrupt(int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 715 | struct ata_host *host = dev_instance; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | struct ata_port *ap; |
| 717 | u32 mask = 0; |
| 718 | unsigned int i, tmp; |
| 719 | unsigned int handled = 0; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 720 | void __iomem *mmio_base; |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 721 | unsigned int hotplug_offset, ata_no; |
| 722 | u32 hotplug_status; |
| 723 | int is_sataii_tx4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | |
| 725 | VPRINTK("ENTER\n"); |
| 726 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 727 | if (!host || !host->iomap[PDC_MMIO_BAR]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | VPRINTK("QUICK EXIT\n"); |
| 729 | return IRQ_NONE; |
| 730 | } |
| 731 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 732 | mmio_base = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 734 | /* read and clear hotplug flags for all ports */ |
| 735 | if (host->ports[0]->flags & PDC_FLAG_GEN_II) |
| 736 | hotplug_offset = PDC2_SATA_PLUG_CSR; |
| 737 | else |
| 738 | hotplug_offset = PDC_SATA_PLUG_CSR; |
| 739 | hotplug_status = readl(mmio_base + hotplug_offset); |
| 740 | if (hotplug_status & 0xff) |
| 741 | writel(hotplug_status | 0xff, mmio_base + hotplug_offset); |
| 742 | hotplug_status &= 0xff; /* clear uninteresting bits */ |
| 743 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | /* reading should also clear interrupts */ |
| 745 | mask = readl(mmio_base + PDC_INT_SEQMASK); |
| 746 | |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 747 | if (mask == 0xffffffff && hotplug_status == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | VPRINTK("QUICK EXIT 2\n"); |
| 749 | return IRQ_NONE; |
| 750 | } |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 751 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 752 | spin_lock(&host->lock); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 753 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | mask &= 0xffff; /* only 16 tags possible */ |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 755 | if (mask == 0 && hotplug_status == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | VPRINTK("QUICK EXIT 3\n"); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 757 | goto done_irq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | } |
| 759 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | writel(mask, mmio_base + PDC_INT_SEQMASK); |
| 761 | |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 762 | is_sataii_tx4 = pdc_is_sataii_tx4(host->ports[0]->flags); |
| 763 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 764 | for (i = 0; i < host->n_ports; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | VPRINTK("port %u\n", i); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 766 | ap = host->ports[i]; |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 767 | |
| 768 | /* check for a plug or unplug event */ |
| 769 | ata_no = pdc_port_no_to_ata_no(i, is_sataii_tx4); |
| 770 | tmp = hotplug_status & (0x11 << ata_no); |
| 771 | if (tmp && ap && |
| 772 | !(ap->flags & ATA_FLAG_DISABLED)) { |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 773 | struct ata_eh_info *ehi = &ap->link.eh_info; |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 774 | ata_ehi_clear_desc(ehi); |
| 775 | ata_ehi_hotplugged(ehi); |
| 776 | ata_ehi_push_desc(ehi, "hotplug_status %#x", tmp); |
| 777 | ata_port_freeze(ap); |
| 778 | ++handled; |
| 779 | continue; |
| 780 | } |
| 781 | |
| 782 | /* check for a packet interrupt */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | tmp = mask & (1 << (i + 1)); |
Tejun Heo | c138950 | 2005-08-22 14:59:24 +0900 | [diff] [blame] | 784 | if (tmp && ap && |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 785 | !(ap->flags & ATA_FLAG_DISABLED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | struct ata_queued_cmd *qc; |
| 787 | |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 788 | qc = ata_qc_from_tag(ap, ap->link.active_tag); |
Albert Lee | e50362e | 2005-09-27 17:39:50 +0800 | [diff] [blame] | 789 | if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 790 | handled += pdc_host_intr(ap, qc); |
| 791 | } |
| 792 | } |
| 793 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | VPRINTK("EXIT\n"); |
| 795 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 796 | done_irq: |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 797 | spin_unlock(&host->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 798 | return IRQ_RETVAL(handled); |
| 799 | } |
| 800 | |
| 801 | static inline void pdc_packet_start(struct ata_queued_cmd *qc) |
| 802 | { |
| 803 | struct ata_port *ap = qc->ap; |
| 804 | struct pdc_port_priv *pp = ap->private_data; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 805 | void __iomem *mmio = ap->host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | unsigned int port_no = ap->port_no; |
| 807 | u8 seq = (u8) (port_no + 1); |
| 808 | |
| 809 | VPRINTK("ENTER, ap %p\n", ap); |
| 810 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 811 | writel(0x00000001, mmio + (seq * 4)); |
| 812 | readl(mmio + (seq * 4)); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | |
| 814 | pp->pkt[2] = seq; |
| 815 | wmb(); /* flush PRD, pkt writes */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 816 | writel(pp->pkt_dma, ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); |
| 817 | readl(ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | } |
| 819 | |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 820 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | { |
| 822 | switch (qc->tf.protocol) { |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 823 | case ATA_PROT_ATAPI_NODATA: |
| 824 | if (qc->dev->flags & ATA_DFLAG_CDB_INTR) |
| 825 | break; |
| 826 | /*FALLTHROUGH*/ |
Tejun Heo | 51b94d2 | 2007-06-08 13:46:55 -0700 | [diff] [blame] | 827 | case ATA_PROT_NODATA: |
| 828 | if (qc->tf.flags & ATA_TFLAG_POLLING) |
| 829 | break; |
| 830 | /*FALLTHROUGH*/ |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 831 | case ATA_PROT_ATAPI_DMA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | case ATA_PROT_DMA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | pdc_packet_start(qc); |
| 834 | return 0; |
| 835 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | default: |
| 837 | break; |
| 838 | } |
| 839 | |
| 840 | return ata_qc_issue_prot(qc); |
| 841 | } |
| 842 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 843 | 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] | 844 | { |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 845 | WARN_ON(tf->protocol == ATA_PROT_DMA || |
| 846 | tf->protocol == ATA_PROT_ATAPI_DMA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | ata_tf_load(ap, tf); |
| 848 | } |
| 849 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 850 | static void pdc_exec_command_mmio(struct ata_port *ap, |
| 851 | const struct ata_taskfile *tf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | { |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 853 | WARN_ON(tf->protocol == ATA_PROT_DMA || |
| 854 | tf->protocol == ATA_PROT_ATAPI_DMA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | ata_exec_command(ap, tf); |
| 856 | } |
| 857 | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 858 | static int pdc_check_atapi_dma(struct ata_queued_cmd *qc) |
| 859 | { |
| 860 | u8 *scsicmd = qc->scsicmd->cmnd; |
| 861 | int pio = 1; /* atapi dma off by default */ |
| 862 | |
| 863 | /* Whitelist commands that may use DMA. */ |
| 864 | switch (scsicmd[0]) { |
| 865 | case WRITE_12: |
| 866 | case WRITE_10: |
| 867 | case WRITE_6: |
| 868 | case READ_12: |
| 869 | case READ_10: |
| 870 | case READ_6: |
| 871 | case 0xad: /* READ_DVD_STRUCTURE */ |
| 872 | case 0xbe: /* READ_CD */ |
| 873 | pio = 0; |
| 874 | } |
| 875 | /* -45150 (FFFF4FA2) to -1 (FFFFFFFF) shall use PIO mode */ |
| 876 | if (scsicmd[0] == WRITE_10) { |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 877 | unsigned int lba = |
| 878 | (scsicmd[2] << 24) | |
| 879 | (scsicmd[3] << 16) | |
| 880 | (scsicmd[4] << 8) | |
| 881 | scsicmd[5]; |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 882 | if (lba >= 0xFFFF4FA2) |
| 883 | pio = 1; |
| 884 | } |
| 885 | return pio; |
| 886 | } |
| 887 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 888 | static int pdc_old_sata_check_atapi_dma(struct ata_queued_cmd *qc) |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 889 | { |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 890 | /* First generation chips cannot use ATAPI DMA on SATA ports */ |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 891 | return 1; |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 892 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 894 | static void pdc_ata_setup_port(struct ata_port *ap, |
| 895 | void __iomem *base, void __iomem *scr_addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 897 | ap->ioaddr.cmd_addr = base; |
| 898 | ap->ioaddr.data_addr = base; |
| 899 | ap->ioaddr.feature_addr = |
| 900 | ap->ioaddr.error_addr = base + 0x4; |
| 901 | ap->ioaddr.nsect_addr = base + 0x8; |
| 902 | ap->ioaddr.lbal_addr = base + 0xc; |
| 903 | ap->ioaddr.lbam_addr = base + 0x10; |
| 904 | ap->ioaddr.lbah_addr = base + 0x14; |
| 905 | ap->ioaddr.device_addr = base + 0x18; |
| 906 | ap->ioaddr.command_addr = |
| 907 | ap->ioaddr.status_addr = base + 0x1c; |
| 908 | ap->ioaddr.altstatus_addr = |
| 909 | ap->ioaddr.ctl_addr = base + 0x38; |
| 910 | ap->ioaddr.scr_addr = scr_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | } |
| 912 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 913 | static void pdc_host_init(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 914 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 915 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
| 916 | int is_gen2 = host->ports[0]->flags & PDC_FLAG_GEN_II; |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 917 | int hotplug_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | u32 tmp; |
| 919 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 920 | if (is_gen2) |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 921 | hotplug_offset = PDC2_SATA_PLUG_CSR; |
| 922 | else |
| 923 | hotplug_offset = PDC_SATA_PLUG_CSR; |
| 924 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | /* |
| 926 | * Except for the hotplug stuff, this is voodoo from the |
| 927 | * Promise driver. Label this entire section |
| 928 | * "TODO: figure out why we do this" |
| 929 | */ |
| 930 | |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 931 | /* enable BMR_BURST, maybe change FIFO_SHD to 8 dwords */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | tmp = readl(mmio + PDC_FLASH_CTL); |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 933 | tmp |= 0x02000; /* bit 13 (enable bmr burst) */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 934 | if (!is_gen2) |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 935 | tmp |= 0x10000; /* bit 16 (fifo threshold at 8 dw) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 936 | writel(tmp, mmio + PDC_FLASH_CTL); |
| 937 | |
| 938 | /* clear plug/unplug flags for all ports */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 939 | tmp = readl(mmio + hotplug_offset); |
| 940 | writel(tmp | 0xff, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 942 | /* unmask plug/unplug ints */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 943 | tmp = readl(mmio + hotplug_offset); |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 944 | writel(tmp & ~0xff0000, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 946 | /* don't initialise TBG or SLEW on 2nd generation chips */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 947 | if (is_gen2) |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 948 | return; |
| 949 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 950 | /* reduce TBG clock to 133 Mhz. */ |
| 951 | tmp = readl(mmio + PDC_TBG_MODE); |
| 952 | tmp &= ~0x30000; /* clear bit 17, 16*/ |
| 953 | tmp |= 0x10000; /* set bit 17:16 = 0:1 */ |
| 954 | writel(tmp, mmio + PDC_TBG_MODE); |
| 955 | |
| 956 | readl(mmio + PDC_TBG_MODE); /* flush */ |
| 957 | msleep(10); |
| 958 | |
| 959 | /* adjust slew rate control register. */ |
| 960 | tmp = readl(mmio + PDC_SLEW_CTL); |
| 961 | tmp &= 0xFFFFF03F; /* clear bit 11 ~ 6 */ |
| 962 | tmp |= 0x00000900; /* set bit 11-9 = 100b , bit 8-6 = 100 */ |
| 963 | writel(tmp, mmio + PDC_SLEW_CTL); |
| 964 | } |
| 965 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 966 | static int pdc_ata_init_one(struct pci_dev *pdev, |
| 967 | const struct pci_device_id *ent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | { |
| 969 | static int printed_version; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 970 | const struct ata_port_info *pi = &pdc_port_info[ent->driver_data]; |
| 971 | const struct ata_port_info *ppi[PDC_MAX_PORTS]; |
| 972 | struct ata_host *host; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 973 | void __iomem *base; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 974 | int n_ports, i, rc; |
Mikael Pettersson | 5ac2fe5 | 2007-05-06 22:14:01 +0200 | [diff] [blame] | 975 | int is_sataii_tx4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 976 | |
| 977 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 978 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 979 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 980 | /* enable and acquire resources */ |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 981 | rc = pcim_enable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | if (rc) |
| 983 | return rc; |
| 984 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 985 | rc = pcim_iomap_regions(pdev, 1 << PDC_MMIO_BAR, DRV_NAME); |
| 986 | if (rc == -EBUSY) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 987 | pcim_pin_device(pdev); |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 988 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 989 | return rc; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 990 | base = pcim_iomap_table(pdev)[PDC_MMIO_BAR]; |
| 991 | |
| 992 | /* determine port configuration and setup host */ |
| 993 | n_ports = 2; |
| 994 | if (pi->flags & PDC_FLAG_4_PORTS) |
| 995 | n_ports = 4; |
| 996 | for (i = 0; i < n_ports; i++) |
| 997 | ppi[i] = pi; |
| 998 | |
| 999 | if (pi->flags & PDC_FLAG_SATA_PATA) { |
| 1000 | u8 tmp = readb(base + PDC_FLASH_CTL+1); |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 1001 | if (!(tmp & 0x80)) |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1002 | ppi[n_ports++] = pi + 1; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1003 | } |
| 1004 | |
| 1005 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); |
| 1006 | if (!host) { |
| 1007 | dev_printk(KERN_ERR, &pdev->dev, "failed to allocate host\n"); |
| 1008 | return -ENOMEM; |
| 1009 | } |
| 1010 | host->iomap = pcim_iomap_table(pdev); |
| 1011 | |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 1012 | is_sataii_tx4 = pdc_is_sataii_tx4(pi->flags); |
Mikael Pettersson | 5ac2fe5 | 2007-05-06 22:14:01 +0200 | [diff] [blame] | 1013 | for (i = 0; i < host->n_ports; i++) { |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1014 | struct ata_port *ap = host->ports[i]; |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 1015 | unsigned int ata_no = pdc_port_no_to_ata_no(i, is_sataii_tx4); |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1016 | unsigned int port_offset = 0x200 + ata_no * 0x80; |
| 1017 | unsigned int scr_offset = 0x400 + ata_no * 0x100; |
| 1018 | |
| 1019 | pdc_ata_setup_port(ap, base + port_offset, base + scr_offset); |
| 1020 | |
| 1021 | ata_port_pbar_desc(ap, PDC_MMIO_BAR, -1, "mmio"); |
| 1022 | ata_port_pbar_desc(ap, PDC_MMIO_BAR, port_offset, "port"); |
Mikael Pettersson | 5ac2fe5 | 2007-05-06 22:14:01 +0200 | [diff] [blame] | 1023 | } |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1024 | |
| 1025 | /* initialize adapter */ |
| 1026 | pdc_host_init(host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | |
| 1028 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 1029 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1030 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 1032 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1033 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1034 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1035 | /* start host, request IRQ and attach */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | pci_set_master(pdev); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1037 | return ata_host_activate(host, pdev->irq, pdc_interrupt, IRQF_SHARED, |
| 1038 | &pdc_ata_sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | } |
| 1040 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | static int __init pdc_ata_init(void) |
| 1042 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 1043 | return pci_register_driver(&pdc_ata_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | } |
| 1045 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1046 | static void __exit pdc_ata_exit(void) |
| 1047 | { |
| 1048 | pci_unregister_driver(&pdc_ata_pci_driver); |
| 1049 | } |
| 1050 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | MODULE_AUTHOR("Jeff Garzik"); |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 1052 | MODULE_DESCRIPTION("Promise ATA TX2/TX4/TX4000 low-level driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | MODULE_LICENSE("GPL"); |
| 1054 | MODULE_DEVICE_TABLE(pci, pdc_ata_pci_tbl); |
| 1055 | MODULE_VERSION(DRV_VERSION); |
| 1056 | |
| 1057 | module_init(pdc_ata_init); |
| 1058 | module_exit(pdc_ata_exit); |