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, |
| 86 | PDC2_ERR_MASK = PDC2_HTO_ERR | PDC2_ATA_HBA_ERR | PDC2_ATA_DMA_CNT_ERR, |
| 87 | PDC_ERR_MASK = (PDC_PH_ERR | PDC_SH_ERR | PDC_DH_ERR | PDC_OVERRUN_ERR |
| 88 | | PDC_UNDERRUN_ERR | PDC_DRIVE_ERR | PDC_PCI_SYS_ERR |
| 89 | | PDC1_ERR_MASK | PDC2_ERR_MASK), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
| 91 | board_2037x = 0, /* FastTrak S150 TX2plus */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 92 | board_2037x_pata = 1, /* FastTrak S150 TX2plus PATA port */ |
| 93 | board_20319 = 2, /* FastTrak S150 TX4 */ |
| 94 | board_20619 = 3, /* FastTrak TX4000 */ |
| 95 | board_2057x = 4, /* SATAII150 Tx2plus */ |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 96 | board_2057x_pata = 5, /* SATAII150 Tx2plus PATA port */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 97 | board_40518 = 6, /* SATAII150 Tx4 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 99 | PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 101 | /* Sequence counter control registers bit definitions */ |
| 102 | PDC_SEQCNTRL_INT_MASK = (1 << 5), /* Sequence Interrupt Mask */ |
| 103 | |
| 104 | /* Feature register values */ |
| 105 | PDC_FEATURE_ATAPI_PIO = 0x00, /* ATAPI data xfer by PIO */ |
| 106 | PDC_FEATURE_ATAPI_DMA = 0x01, /* ATAPI data xfer by DMA */ |
| 107 | |
| 108 | /* Device/Head register values */ |
| 109 | PDC_DEVICE_SATA = 0xE0, /* Device/Head value for SATA devices */ |
| 110 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 111 | /* PDC_CTLSTAT bit definitions */ |
| 112 | PDC_DMA_ENABLE = (1 << 7), |
| 113 | PDC_IRQ_DISABLE = (1 << 10), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | PDC_RESET = (1 << 11), /* HDMA reset */ |
Jeff Garzik | 5063019 | 2005-12-13 02:29:45 -0500 | [diff] [blame] | 115 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 116 | PDC_COMMON_FLAGS = ATA_FLAG_NO_LEGACY | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 117 | ATA_FLAG_MMIO | |
Jeff Garzik | 3d0a59c | 2005-12-13 22:28:19 -0500 | [diff] [blame] | 118 | ATA_FLAG_PIO_POLLING, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 119 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 120 | /* ap->flags bits */ |
| 121 | PDC_FLAG_GEN_II = (1 << 24), |
| 122 | PDC_FLAG_SATA_PATA = (1 << 25), /* supports SATA + PATA */ |
| 123 | PDC_FLAG_4_PORTS = (1 << 26), /* 4 ports */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | }; |
| 125 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | struct pdc_port_priv { |
| 127 | u8 *pkt; |
| 128 | dma_addr_t pkt_dma; |
| 129 | }; |
| 130 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 131 | static int pdc_sata_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); |
| 132 | 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] | 133 | 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] | 134 | static int pdc_common_port_start(struct ata_port *ap); |
| 135 | static int pdc_sata_port_start(struct ata_port *ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | static void pdc_qc_prep(struct ata_queued_cmd *qc); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 137 | static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf); |
| 138 | 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] | 139 | static int pdc_check_atapi_dma(struct ata_queued_cmd *qc); |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 140 | 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] | 141 | static void pdc_irq_clear(struct ata_port *ap); |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 142 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc); |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 143 | static void pdc_freeze(struct ata_port *ap); |
| 144 | static void pdc_thaw(struct ata_port *ap); |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 145 | static void pdc_pata_error_handler(struct ata_port *ap); |
| 146 | static void pdc_sata_error_handler(struct ata_port *ap); |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 147 | static void pdc_post_internal_cmd(struct ata_queued_cmd *qc); |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 148 | static int pdc_pata_cable_detect(struct ata_port *ap); |
| 149 | static int pdc_sata_cable_detect(struct ata_port *ap); |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 150 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 151 | static struct scsi_host_template pdc_ata_sht = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | .module = THIS_MODULE, |
| 153 | .name = DRV_NAME, |
| 154 | .ioctl = ata_scsi_ioctl, |
| 155 | .queuecommand = ata_scsi_queuecmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | .can_queue = ATA_DEF_QUEUE, |
| 157 | .this_id = ATA_SHT_THIS_ID, |
| 158 | .sg_tablesize = LIBATA_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 160 | .emulated = ATA_SHT_EMULATED, |
| 161 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 162 | .proc_name = DRV_NAME, |
| 163 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 164 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | ccf68c3 | 2006-05-31 18:28:09 +0900 | [diff] [blame] | 165 | .slave_destroy = ata_scsi_slave_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | .bios_param = ata_std_bios_param, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | }; |
| 168 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 169 | static const struct ata_port_operations pdc_sata_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | .tf_load = pdc_tf_load_mmio, |
| 171 | .tf_read = ata_tf_read, |
| 172 | .check_status = ata_check_status, |
| 173 | .exec_command = pdc_exec_command_mmio, |
| 174 | .dev_select = ata_std_dev_select, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 175 | .check_atapi_dma = pdc_check_atapi_dma, |
| 176 | |
| 177 | .qc_prep = pdc_qc_prep, |
| 178 | .qc_issue = pdc_qc_issue_prot, |
| 179 | .freeze = pdc_freeze, |
| 180 | .thaw = pdc_thaw, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 181 | .error_handler = pdc_sata_error_handler, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 182 | .post_internal_cmd = pdc_post_internal_cmd, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 183 | .cable_detect = pdc_sata_cable_detect, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 184 | .data_xfer = ata_data_xfer, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 185 | .irq_clear = pdc_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 186 | .irq_on = ata_irq_on, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 187 | |
| 188 | .scr_read = pdc_sata_scr_read, |
| 189 | .scr_write = pdc_sata_scr_write, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 190 | .port_start = pdc_sata_port_start, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 191 | }; |
| 192 | |
| 193 | /* First-generation chips need a more restrictive ->check_atapi_dma op */ |
| 194 | static const struct ata_port_operations pdc_old_sata_ops = { |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 195 | .tf_load = pdc_tf_load_mmio, |
| 196 | .tf_read = ata_tf_read, |
| 197 | .check_status = ata_check_status, |
| 198 | .exec_command = pdc_exec_command_mmio, |
| 199 | .dev_select = ata_std_dev_select, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 200 | .check_atapi_dma = pdc_old_sata_check_atapi_dma, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | .qc_prep = pdc_qc_prep, |
| 203 | .qc_issue = pdc_qc_issue_prot, |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 204 | .freeze = pdc_freeze, |
| 205 | .thaw = pdc_thaw, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 206 | .error_handler = pdc_sata_error_handler, |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 207 | .post_internal_cmd = pdc_post_internal_cmd, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 208 | .cable_detect = pdc_sata_cable_detect, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 209 | .data_xfer = ata_data_xfer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | .irq_clear = pdc_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 211 | .irq_on = ata_irq_on, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 212 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | .scr_read = pdc_sata_scr_read, |
| 214 | .scr_write = pdc_sata_scr_write, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 215 | .port_start = pdc_sata_port_start, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | }; |
| 217 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 218 | static const struct ata_port_operations pdc_pata_ops = { |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 219 | .tf_load = pdc_tf_load_mmio, |
| 220 | .tf_read = ata_tf_read, |
| 221 | .check_status = ata_check_status, |
| 222 | .exec_command = pdc_exec_command_mmio, |
| 223 | .dev_select = ata_std_dev_select, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 224 | .check_atapi_dma = pdc_check_atapi_dma, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 225 | |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 226 | .qc_prep = pdc_qc_prep, |
| 227 | .qc_issue = pdc_qc_issue_prot, |
Mikael Pettersson | 5387373 | 2007-02-11 23:19:53 +0100 | [diff] [blame] | 228 | .freeze = pdc_freeze, |
| 229 | .thaw = pdc_thaw, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 230 | .error_handler = pdc_pata_error_handler, |
Mikael Pettersson | 540477b | 2007-02-25 12:44:39 +0100 | [diff] [blame] | 231 | .post_internal_cmd = pdc_post_internal_cmd, |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 232 | .cable_detect = pdc_pata_cable_detect, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 233 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 234 | .irq_clear = pdc_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 235 | .irq_on = ata_irq_on, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 236 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 237 | .port_start = pdc_common_port_start, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 238 | }; |
| 239 | |
Arjan van de Ven | 98ac62d | 2005-11-28 10:06:23 +0100 | [diff] [blame] | 240 | static const struct ata_port_info pdc_port_info[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | /* board_2037x */ |
| 242 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 243 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA | |
| 244 | PDC_FLAG_SATA_PATA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | .pio_mask = 0x1f, /* pio0-4 */ |
| 246 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 247 | .udma_mask = ATA_UDMA6, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 248 | .port_ops = &pdc_old_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | }, |
| 250 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 251 | /* board_2037x_pata */ |
| 252 | { |
| 253 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS, |
| 254 | .pio_mask = 0x1f, /* pio0-4 */ |
| 255 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 256 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 257 | .port_ops = &pdc_pata_ops, |
| 258 | }, |
| 259 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | /* board_20319 */ |
| 261 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 262 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA | |
| 263 | PDC_FLAG_4_PORTS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | .pio_mask = 0x1f, /* pio0-4 */ |
| 265 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 266 | .udma_mask = ATA_UDMA6, |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 267 | .port_ops = &pdc_old_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | }, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 269 | |
| 270 | /* board_20619 */ |
| 271 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 272 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS | |
| 273 | PDC_FLAG_4_PORTS, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 274 | .pio_mask = 0x1f, /* pio0-4 */ |
| 275 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 276 | .udma_mask = ATA_UDMA6, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 277 | .port_ops = &pdc_pata_ops, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 278 | }, |
Yusuf Iskenderoglu | 5a46fe8 | 2006-01-17 08:06:21 -0500 | [diff] [blame] | 279 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 280 | /* board_2057x */ |
| 281 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 282 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA | |
| 283 | PDC_FLAG_GEN_II | PDC_FLAG_SATA_PATA, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 284 | .pio_mask = 0x1f, /* pio0-4 */ |
| 285 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 286 | .udma_mask = ATA_UDMA6, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 287 | .port_ops = &pdc_sata_ops, |
| 288 | }, |
| 289 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 290 | /* board_2057x_pata */ |
| 291 | { |
Jeff Garzik | bb31223 | 2007-05-24 23:35:59 -0400 | [diff] [blame] | 292 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 293 | PDC_FLAG_GEN_II, |
| 294 | .pio_mask = 0x1f, /* pio0-4 */ |
| 295 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 296 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 297 | .port_ops = &pdc_pata_ops, |
| 298 | }, |
| 299 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 300 | /* board_40518 */ |
| 301 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 302 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA | |
| 303 | PDC_FLAG_GEN_II | PDC_FLAG_4_PORTS, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 304 | .pio_mask = 0x1f, /* pio0-4 */ |
| 305 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 306 | .udma_mask = ATA_UDMA6, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 307 | .port_ops = &pdc_sata_ops, |
| 308 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | }; |
| 310 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 311 | static const struct pci_device_id pdc_ata_pci_tbl[] = { |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 312 | { PCI_VDEVICE(PROMISE, 0x3371), board_2037x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 313 | { PCI_VDEVICE(PROMISE, 0x3373), board_2037x }, |
| 314 | { PCI_VDEVICE(PROMISE, 0x3375), board_2037x }, |
| 315 | { PCI_VDEVICE(PROMISE, 0x3376), board_2037x }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 316 | { PCI_VDEVICE(PROMISE, 0x3570), board_2057x }, |
| 317 | { PCI_VDEVICE(PROMISE, 0x3571), board_2057x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 318 | { PCI_VDEVICE(PROMISE, 0x3574), board_2057x }, |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 319 | { PCI_VDEVICE(PROMISE, 0x3577), board_2057x }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 320 | { PCI_VDEVICE(PROMISE, 0x3d73), board_2057x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 321 | { PCI_VDEVICE(PROMISE, 0x3d75), board_2057x }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 323 | { PCI_VDEVICE(PROMISE, 0x3318), board_20319 }, |
| 324 | { PCI_VDEVICE(PROMISE, 0x3319), board_20319 }, |
Mikael Pettersson | 7f9992a | 2007-08-29 10:25:37 +0200 | [diff] [blame] | 325 | { PCI_VDEVICE(PROMISE, 0x3515), board_40518 }, |
| 326 | { PCI_VDEVICE(PROMISE, 0x3519), board_40518 }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 327 | { PCI_VDEVICE(PROMISE, 0x3d17), board_40518 }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 328 | { PCI_VDEVICE(PROMISE, 0x3d18), board_40518 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 330 | { PCI_VDEVICE(PROMISE, 0x6629), board_20619 }, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | { } /* terminate list */ |
| 333 | }; |
| 334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | static struct pci_driver pdc_ata_pci_driver = { |
| 336 | .name = DRV_NAME, |
| 337 | .id_table = pdc_ata_pci_tbl, |
| 338 | .probe = pdc_ata_init_one, |
| 339 | .remove = ata_pci_remove_one, |
| 340 | }; |
| 341 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 342 | static int pdc_common_port_start(struct ata_port *ap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 344 | struct device *dev = ap->host->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | struct pdc_port_priv *pp; |
| 346 | int rc; |
| 347 | |
| 348 | rc = ata_port_start(ap); |
| 349 | if (rc) |
| 350 | return rc; |
| 351 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 352 | pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); |
| 353 | if (!pp) |
| 354 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 356 | pp->pkt = dmam_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL); |
| 357 | if (!pp->pkt) |
| 358 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | |
| 360 | ap->private_data = pp; |
| 361 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 362 | return 0; |
| 363 | } |
| 364 | |
| 365 | static int pdc_sata_port_start(struct ata_port *ap) |
| 366 | { |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 367 | int rc; |
| 368 | |
| 369 | rc = pdc_common_port_start(ap); |
| 370 | if (rc) |
| 371 | return rc; |
| 372 | |
Mikael Pettersson | 599b720 | 2006-12-01 10:55:58 +0100 | [diff] [blame] | 373 | /* fix up PHYMODE4 align timing */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 374 | if (ap->flags & PDC_FLAG_GEN_II) { |
Jeff Garzik | 59f9988 | 2007-05-28 07:07:20 -0400 | [diff] [blame] | 375 | void __iomem *mmio = ap->ioaddr.scr_addr; |
Mikael Pettersson | 599b720 | 2006-12-01 10:55:58 +0100 | [diff] [blame] | 376 | unsigned int tmp; |
| 377 | |
| 378 | tmp = readl(mmio + 0x014); |
| 379 | tmp = (tmp & ~3) | 1; /* set bits 1:0 = 0:1 */ |
| 380 | writel(tmp, mmio + 0x014); |
| 381 | } |
| 382 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | } |
| 385 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | static void pdc_reset_port(struct ata_port *ap) |
| 387 | { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 388 | void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | unsigned int i; |
| 390 | u32 tmp; |
| 391 | |
| 392 | for (i = 11; i > 0; i--) { |
| 393 | tmp = readl(mmio); |
| 394 | if (tmp & PDC_RESET) |
| 395 | break; |
| 396 | |
| 397 | udelay(100); |
| 398 | |
| 399 | tmp |= PDC_RESET; |
| 400 | writel(tmp, mmio); |
| 401 | } |
| 402 | |
| 403 | tmp &= ~PDC_RESET; |
| 404 | writel(tmp, mmio); |
| 405 | readl(mmio); /* flush */ |
| 406 | } |
| 407 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 408 | static int pdc_pata_cable_detect(struct ata_port *ap) |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 409 | { |
| 410 | u8 tmp; |
Jeff Garzik | 59f9988 | 2007-05-28 07:07:20 -0400 | [diff] [blame] | 411 | void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT + 0x03; |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 412 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 413 | tmp = readb(mmio); |
| 414 | if (tmp & 0x01) |
| 415 | return ATA_CBL_PATA40; |
| 416 | return ATA_CBL_PATA80; |
| 417 | } |
| 418 | |
| 419 | static int pdc_sata_cable_detect(struct ata_port *ap) |
| 420 | { |
Alan Cox | e2a9752 | 2007-03-08 23:06:47 +0000 | [diff] [blame] | 421 | return ATA_CBL_SATA; |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 422 | } |
| 423 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 424 | 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] | 425 | { |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 426 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 427 | return -EINVAL; |
| 428 | *val = readl(ap->ioaddr.scr_addr + (sc_reg * 4)); |
| 429 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | } |
| 431 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 432 | 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] | 433 | { |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 434 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 435 | return -EINVAL; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 436 | writel(val, ap->ioaddr.scr_addr + (sc_reg * 4)); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 437 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | } |
| 439 | |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 440 | static void pdc_atapi_pkt(struct ata_queued_cmd *qc) |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 441 | { |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 442 | struct ata_port *ap = qc->ap; |
| 443 | dma_addr_t sg_table = ap->prd_dma; |
| 444 | unsigned int cdb_len = qc->dev->cdb_len; |
| 445 | u8 *cdb = qc->cdb; |
| 446 | struct pdc_port_priv *pp = ap->private_data; |
| 447 | u8 *buf = pp->pkt; |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 448 | u32 *buf32 = (u32 *) buf; |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 449 | unsigned int dev_sel, feature, nbytes; |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 450 | |
| 451 | /* set control bits (byte 0), zero delay seq id (byte 3), |
| 452 | * and seq id (byte 2) |
| 453 | */ |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 454 | switch (qc->tf.protocol) { |
| 455 | case ATA_PROT_ATAPI_DMA: |
| 456 | if (!(qc->tf.flags & ATA_TFLAG_WRITE)) |
| 457 | buf32[0] = cpu_to_le32(PDC_PKT_READ); |
| 458 | else |
| 459 | buf32[0] = 0; |
| 460 | break; |
| 461 | case ATA_PROT_ATAPI_NODATA: |
| 462 | buf32[0] = cpu_to_le32(PDC_PKT_NODATA); |
| 463 | break; |
| 464 | default: |
| 465 | BUG(); |
| 466 | break; |
| 467 | } |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 468 | buf32[1] = cpu_to_le32(sg_table); /* S/G table addr */ |
| 469 | buf32[2] = 0; /* no next-packet */ |
| 470 | |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 471 | /* select drive */ |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 472 | if (sata_scr_valid(&ap->link)) { |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 473 | dev_sel = PDC_DEVICE_SATA; |
| 474 | } else { |
| 475 | dev_sel = ATA_DEVICE_OBS; |
| 476 | if (qc->dev->devno != 0) |
| 477 | dev_sel |= ATA_DEV1; |
| 478 | } |
| 479 | buf[12] = (1 << 5) | ATA_REG_DEVICE; |
| 480 | buf[13] = dev_sel; |
| 481 | buf[14] = (1 << 5) | ATA_REG_DEVICE | PDC_PKT_CLEAR_BSY; |
| 482 | buf[15] = dev_sel; /* once more, waiting for BSY to clear */ |
| 483 | |
| 484 | buf[16] = (1 << 5) | ATA_REG_NSECT; |
| 485 | buf[17] = 0x00; |
| 486 | buf[18] = (1 << 5) | ATA_REG_LBAL; |
| 487 | buf[19] = 0x00; |
| 488 | |
| 489 | /* set feature and byte counter registers */ |
| 490 | if (qc->tf.protocol != ATA_PROT_ATAPI_DMA) { |
| 491 | feature = PDC_FEATURE_ATAPI_PIO; |
| 492 | /* set byte counter register to real transfer byte count */ |
| 493 | nbytes = qc->nbytes; |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 494 | if (nbytes > 0xffff) |
| 495 | nbytes = 0xffff; |
| 496 | } else { |
| 497 | feature = PDC_FEATURE_ATAPI_DMA; |
| 498 | /* set byte counter register to 0 */ |
| 499 | nbytes = 0; |
| 500 | } |
| 501 | buf[20] = (1 << 5) | ATA_REG_FEATURE; |
| 502 | buf[21] = feature; |
| 503 | buf[22] = (1 << 5) | ATA_REG_BYTEL; |
| 504 | buf[23] = nbytes & 0xFF; |
| 505 | buf[24] = (1 << 5) | ATA_REG_BYTEH; |
| 506 | buf[25] = (nbytes >> 8) & 0xFF; |
| 507 | |
| 508 | /* send ATAPI packet command 0xA0 */ |
| 509 | buf[26] = (1 << 5) | ATA_REG_CMD; |
| 510 | buf[27] = ATA_CMD_PACKET; |
| 511 | |
| 512 | /* select drive and check DRQ */ |
| 513 | buf[28] = (1 << 5) | ATA_REG_DEVICE | PDC_PKT_WAIT_DRDY; |
| 514 | buf[29] = dev_sel; |
| 515 | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 516 | /* we can represent cdb lengths 2/4/6/8/10/12/14/16 */ |
| 517 | BUG_ON(cdb_len & ~0x1E); |
| 518 | |
Mikael Pettersson | 4113bb6 | 2007-01-13 21:31:05 +0100 | [diff] [blame] | 519 | /* append the CDB as the final part */ |
| 520 | buf[30] = (((cdb_len >> 1) & 7) << 5) | ATA_REG_DATA | PDC_LAST_REG; |
| 521 | memcpy(buf+31, cdb, cdb_len); |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 522 | } |
| 523 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | static void pdc_qc_prep(struct ata_queued_cmd *qc) |
| 525 | { |
| 526 | struct pdc_port_priv *pp = qc->ap->private_data; |
| 527 | unsigned int i; |
| 528 | |
| 529 | VPRINTK("ENTER\n"); |
| 530 | |
| 531 | switch (qc->tf.protocol) { |
| 532 | case ATA_PROT_DMA: |
| 533 | ata_qc_prep(qc); |
| 534 | /* fall through */ |
| 535 | |
| 536 | case ATA_PROT_NODATA: |
| 537 | i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma, |
| 538 | qc->dev->devno, pp->pkt); |
| 539 | |
| 540 | if (qc->tf.flags & ATA_TFLAG_LBA48) |
| 541 | i = pdc_prep_lba48(&qc->tf, pp->pkt, i); |
| 542 | else |
| 543 | i = pdc_prep_lba28(&qc->tf, pp->pkt, i); |
| 544 | |
| 545 | pdc_pkt_footer(&qc->tf, pp->pkt, i); |
| 546 | break; |
| 547 | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 548 | case ATA_PROT_ATAPI: |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 549 | ata_qc_prep(qc); |
| 550 | break; |
| 551 | |
| 552 | case ATA_PROT_ATAPI_DMA: |
| 553 | ata_qc_prep(qc); |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 554 | /*FALLTHROUGH*/ |
| 555 | case ATA_PROT_ATAPI_NODATA: |
| 556 | pdc_atapi_pkt(qc); |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 557 | break; |
| 558 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | default: |
| 560 | break; |
| 561 | } |
| 562 | } |
| 563 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 564 | static void pdc_freeze(struct ata_port *ap) |
| 565 | { |
Jeff Garzik | 59f9988 | 2007-05-28 07:07:20 -0400 | [diff] [blame] | 566 | void __iomem *mmio = ap->ioaddr.cmd_addr; |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 567 | u32 tmp; |
| 568 | |
| 569 | tmp = readl(mmio + PDC_CTLSTAT); |
| 570 | tmp |= PDC_IRQ_DISABLE; |
| 571 | tmp &= ~PDC_DMA_ENABLE; |
| 572 | writel(tmp, mmio + PDC_CTLSTAT); |
| 573 | readl(mmio + PDC_CTLSTAT); /* flush */ |
| 574 | } |
| 575 | |
| 576 | static void pdc_thaw(struct ata_port *ap) |
| 577 | { |
Jeff Garzik | 59f9988 | 2007-05-28 07:07:20 -0400 | [diff] [blame] | 578 | void __iomem *mmio = ap->ioaddr.cmd_addr; |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 579 | u32 tmp; |
| 580 | |
| 581 | /* clear IRQ */ |
| 582 | readl(mmio + PDC_INT_SEQMASK); |
| 583 | |
| 584 | /* turn IRQ back on */ |
| 585 | tmp = readl(mmio + PDC_CTLSTAT); |
| 586 | tmp &= ~PDC_IRQ_DISABLE; |
| 587 | writel(tmp, mmio + PDC_CTLSTAT); |
| 588 | readl(mmio + PDC_CTLSTAT); /* flush */ |
| 589 | } |
| 590 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 591 | 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] | 592 | { |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 593 | if (!(ap->pflags & ATA_PFLAG_FROZEN)) |
| 594 | pdc_reset_port(ap); |
| 595 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 596 | /* perform recovery */ |
Alan Cox | e2a9752 | 2007-03-08 23:06:47 +0000 | [diff] [blame] | 597 | ata_do_eh(ap, ata_std_prereset, ata_std_softreset, hardreset, |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 598 | ata_std_postreset); |
| 599 | } |
| 600 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 601 | static void pdc_pata_error_handler(struct ata_port *ap) |
| 602 | { |
| 603 | pdc_common_error_handler(ap, NULL); |
| 604 | } |
| 605 | |
| 606 | static void pdc_sata_error_handler(struct ata_port *ap) |
| 607 | { |
| 608 | pdc_common_error_handler(ap, sata_std_hardreset); |
| 609 | } |
| 610 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 611 | static void pdc_post_internal_cmd(struct ata_queued_cmd *qc) |
| 612 | { |
| 613 | struct ata_port *ap = qc->ap; |
| 614 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 615 | /* make DMA engine forget about the failed command */ |
Tejun Heo | a51d644 | 2007-03-20 15:24:11 +0900 | [diff] [blame] | 616 | if (qc->flags & ATA_QCFLAG_FAILED) |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 617 | pdc_reset_port(ap); |
| 618 | } |
| 619 | |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 620 | static void pdc_error_intr(struct ata_port *ap, struct ata_queued_cmd *qc, |
| 621 | u32 port_status, u32 err_mask) |
| 622 | { |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 623 | struct ata_eh_info *ehi = &ap->link.eh_info; |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 624 | unsigned int ac_err_mask = 0; |
| 625 | |
| 626 | ata_ehi_clear_desc(ehi); |
| 627 | ata_ehi_push_desc(ehi, "port_status 0x%08x", port_status); |
| 628 | port_status &= err_mask; |
| 629 | |
| 630 | if (port_status & PDC_DRIVE_ERR) |
| 631 | ac_err_mask |= AC_ERR_DEV; |
| 632 | if (port_status & (PDC_OVERRUN_ERR | PDC_UNDERRUN_ERR)) |
| 633 | ac_err_mask |= AC_ERR_HSM; |
| 634 | if (port_status & (PDC2_ATA_HBA_ERR | PDC2_ATA_DMA_CNT_ERR)) |
| 635 | ac_err_mask |= AC_ERR_ATA_BUS; |
| 636 | if (port_status & (PDC_PH_ERR | PDC_SH_ERR | PDC_DH_ERR | PDC2_HTO_ERR |
| 637 | | PDC_PCI_SYS_ERR | PDC1_PCI_PARITY_ERR)) |
| 638 | ac_err_mask |= AC_ERR_HOST_BUS; |
| 639 | |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 640 | if (sata_scr_valid(&ap->link)) { |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 641 | u32 serror; |
| 642 | |
| 643 | pdc_sata_scr_read(ap, SCR_ERROR, &serror); |
| 644 | ehi->serror |= serror; |
| 645 | } |
Mikael Pettersson | ce2d3ab | 2007-04-07 14:29:51 +0200 | [diff] [blame] | 646 | |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 647 | qc->err_mask |= ac_err_mask; |
Mikael Pettersson | ce2d3ab | 2007-04-07 14:29:51 +0200 | [diff] [blame] | 648 | |
| 649 | pdc_reset_port(ap); |
Mikael Pettersson | 8ffcfd9 | 2007-05-06 22:12:31 +0200 | [diff] [blame] | 650 | |
| 651 | ata_port_abort(ap); |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 652 | } |
| 653 | |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 654 | static inline unsigned int pdc_host_intr(struct ata_port *ap, |
| 655 | struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | { |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 657 | unsigned int handled = 0; |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 658 | void __iomem *port_mmio = ap->ioaddr.cmd_addr; |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 659 | u32 port_status, err_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 661 | err_mask = PDC_ERR_MASK; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 662 | if (ap->flags & PDC_FLAG_GEN_II) |
Mikael Pettersson | 176efb0 | 2007-03-14 09:51:35 +0100 | [diff] [blame] | 663 | err_mask &= ~PDC1_ERR_MASK; |
| 664 | else |
| 665 | err_mask &= ~PDC2_ERR_MASK; |
| 666 | port_status = readl(port_mmio + PDC_GLOBAL_CTL); |
| 667 | if (unlikely(port_status & err_mask)) { |
| 668 | pdc_error_intr(ap, qc, port_status, err_mask); |
| 669 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | } |
| 671 | |
| 672 | switch (qc->tf.protocol) { |
| 673 | case ATA_PROT_DMA: |
| 674 | case ATA_PROT_NODATA: |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 675 | case ATA_PROT_ATAPI_DMA: |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 676 | case ATA_PROT_ATAPI_NODATA: |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 677 | qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); |
| 678 | ata_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | handled = 1; |
| 680 | break; |
| 681 | |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 682 | default: |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 683 | ap->stats.idle_irq++; |
| 684 | break; |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 685 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 687 | return handled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | } |
| 689 | |
| 690 | static void pdc_irq_clear(struct ata_port *ap) |
| 691 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 692 | struct ata_host *host = ap->host; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 693 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
| 695 | readl(mmio + PDC_INT_SEQMASK); |
| 696 | } |
| 697 | |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 698 | static inline int pdc_is_sataii_tx4(unsigned long flags) |
| 699 | { |
| 700 | const unsigned long mask = PDC_FLAG_GEN_II | PDC_FLAG_4_PORTS; |
| 701 | return (flags & mask) == mask; |
| 702 | } |
| 703 | |
| 704 | static inline unsigned int pdc_port_no_to_ata_no(unsigned int port_no, int is_sataii_tx4) |
| 705 | { |
| 706 | static const unsigned char sataii_tx4_port_remap[4] = { 3, 1, 0, 2}; |
| 707 | return is_sataii_tx4 ? sataii_tx4_port_remap[port_no] : port_no; |
| 708 | } |
| 709 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 710 | static irqreturn_t pdc_interrupt (int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 712 | struct ata_host *host = dev_instance; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | struct ata_port *ap; |
| 714 | u32 mask = 0; |
| 715 | unsigned int i, tmp; |
| 716 | unsigned int handled = 0; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 717 | void __iomem *mmio_base; |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 718 | unsigned int hotplug_offset, ata_no; |
| 719 | u32 hotplug_status; |
| 720 | int is_sataii_tx4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | |
| 722 | VPRINTK("ENTER\n"); |
| 723 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 724 | if (!host || !host->iomap[PDC_MMIO_BAR]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | VPRINTK("QUICK EXIT\n"); |
| 726 | return IRQ_NONE; |
| 727 | } |
| 728 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 729 | mmio_base = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 731 | /* read and clear hotplug flags for all ports */ |
| 732 | if (host->ports[0]->flags & PDC_FLAG_GEN_II) |
| 733 | hotplug_offset = PDC2_SATA_PLUG_CSR; |
| 734 | else |
| 735 | hotplug_offset = PDC_SATA_PLUG_CSR; |
| 736 | hotplug_status = readl(mmio_base + hotplug_offset); |
| 737 | if (hotplug_status & 0xff) |
| 738 | writel(hotplug_status | 0xff, mmio_base + hotplug_offset); |
| 739 | hotplug_status &= 0xff; /* clear uninteresting bits */ |
| 740 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | /* reading should also clear interrupts */ |
| 742 | mask = readl(mmio_base + PDC_INT_SEQMASK); |
| 743 | |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 744 | if (mask == 0xffffffff && hotplug_status == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | VPRINTK("QUICK EXIT 2\n"); |
| 746 | return IRQ_NONE; |
| 747 | } |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 748 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 749 | spin_lock(&host->lock); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 750 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | mask &= 0xffff; /* only 16 tags possible */ |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 752 | if (mask == 0 && hotplug_status == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | VPRINTK("QUICK EXIT 3\n"); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 754 | goto done_irq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | } |
| 756 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | writel(mask, mmio_base + PDC_INT_SEQMASK); |
| 758 | |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 759 | is_sataii_tx4 = pdc_is_sataii_tx4(host->ports[0]->flags); |
| 760 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 761 | for (i = 0; i < host->n_ports; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | VPRINTK("port %u\n", i); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 763 | ap = host->ports[i]; |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 764 | |
| 765 | /* check for a plug or unplug event */ |
| 766 | ata_no = pdc_port_no_to_ata_no(i, is_sataii_tx4); |
| 767 | tmp = hotplug_status & (0x11 << ata_no); |
| 768 | if (tmp && ap && |
| 769 | !(ap->flags & ATA_FLAG_DISABLED)) { |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 770 | struct ata_eh_info *ehi = &ap->link.eh_info; |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 771 | ata_ehi_clear_desc(ehi); |
| 772 | ata_ehi_hotplugged(ehi); |
| 773 | ata_ehi_push_desc(ehi, "hotplug_status %#x", tmp); |
| 774 | ata_port_freeze(ap); |
| 775 | ++handled; |
| 776 | continue; |
| 777 | } |
| 778 | |
| 779 | /* check for a packet interrupt */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | tmp = mask & (1 << (i + 1)); |
Tejun Heo | c138950 | 2005-08-22 14:59:24 +0900 | [diff] [blame] | 781 | if (tmp && ap && |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 782 | !(ap->flags & ATA_FLAG_DISABLED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | struct ata_queued_cmd *qc; |
| 784 | |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 785 | qc = ata_qc_from_tag(ap, ap->link.active_tag); |
Albert Lee | e50362e | 2005-09-27 17:39:50 +0800 | [diff] [blame] | 786 | if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | handled += pdc_host_intr(ap, qc); |
| 788 | } |
| 789 | } |
| 790 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | VPRINTK("EXIT\n"); |
| 792 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 793 | done_irq: |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 794 | spin_unlock(&host->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | return IRQ_RETVAL(handled); |
| 796 | } |
| 797 | |
| 798 | static inline void pdc_packet_start(struct ata_queued_cmd *qc) |
| 799 | { |
| 800 | struct ata_port *ap = qc->ap; |
| 801 | struct pdc_port_priv *pp = ap->private_data; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 802 | void __iomem *mmio = ap->host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | unsigned int port_no = ap->port_no; |
| 804 | u8 seq = (u8) (port_no + 1); |
| 805 | |
| 806 | VPRINTK("ENTER, ap %p\n", ap); |
| 807 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 808 | writel(0x00000001, mmio + (seq * 4)); |
| 809 | readl(mmio + (seq * 4)); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | |
| 811 | pp->pkt[2] = seq; |
| 812 | wmb(); /* flush PRD, pkt writes */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 813 | writel(pp->pkt_dma, ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); |
| 814 | readl(ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | } |
| 816 | |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 817 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | { |
| 819 | switch (qc->tf.protocol) { |
Mikael Pettersson | fba6edb | 2007-01-13 21:32:30 +0100 | [diff] [blame] | 820 | case ATA_PROT_ATAPI_NODATA: |
| 821 | if (qc->dev->flags & ATA_DFLAG_CDB_INTR) |
| 822 | break; |
| 823 | /*FALLTHROUGH*/ |
Tejun Heo | 51b94d2 | 2007-06-08 13:46:55 -0700 | [diff] [blame] | 824 | case ATA_PROT_NODATA: |
| 825 | if (qc->tf.flags & ATA_TFLAG_POLLING) |
| 826 | break; |
| 827 | /*FALLTHROUGH*/ |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 828 | case ATA_PROT_ATAPI_DMA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | case ATA_PROT_DMA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | pdc_packet_start(qc); |
| 831 | return 0; |
| 832 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | default: |
| 834 | break; |
| 835 | } |
| 836 | |
| 837 | return ata_qc_issue_prot(qc); |
| 838 | } |
| 839 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 840 | 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] | 841 | { |
| 842 | WARN_ON (tf->protocol == ATA_PROT_DMA || |
Tejun Heo | 51b94d2 | 2007-06-08 13:46:55 -0700 | [diff] [blame] | 843 | tf->protocol == ATA_PROT_ATAPI_DMA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | ata_tf_load(ap, tf); |
| 845 | } |
| 846 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 847 | 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] | 848 | { |
| 849 | WARN_ON (tf->protocol == ATA_PROT_DMA || |
Tejun Heo | 51b94d2 | 2007-06-08 13:46:55 -0700 | [diff] [blame] | 850 | tf->protocol == ATA_PROT_ATAPI_DMA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | ata_exec_command(ap, tf); |
| 852 | } |
| 853 | |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 854 | static int pdc_check_atapi_dma(struct ata_queued_cmd *qc) |
| 855 | { |
| 856 | u8 *scsicmd = qc->scsicmd->cmnd; |
| 857 | int pio = 1; /* atapi dma off by default */ |
| 858 | |
| 859 | /* Whitelist commands that may use DMA. */ |
| 860 | switch (scsicmd[0]) { |
| 861 | case WRITE_12: |
| 862 | case WRITE_10: |
| 863 | case WRITE_6: |
| 864 | case READ_12: |
| 865 | case READ_10: |
| 866 | case READ_6: |
| 867 | case 0xad: /* READ_DVD_STRUCTURE */ |
| 868 | case 0xbe: /* READ_CD */ |
| 869 | pio = 0; |
| 870 | } |
| 871 | /* -45150 (FFFF4FA2) to -1 (FFFFFFFF) shall use PIO mode */ |
| 872 | if (scsicmd[0] == WRITE_10) { |
| 873 | unsigned int lba; |
| 874 | lba = (scsicmd[2] << 24) | (scsicmd[3] << 16) | (scsicmd[4] << 8) | scsicmd[5]; |
| 875 | if (lba >= 0xFFFF4FA2) |
| 876 | pio = 1; |
| 877 | } |
| 878 | return pio; |
| 879 | } |
| 880 | |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 881 | 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] | 882 | { |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 883 | /* First generation chips cannot use ATAPI DMA on SATA ports */ |
Mikael Pettersson | 724114a | 2007-03-11 21:20:43 +0100 | [diff] [blame] | 884 | return 1; |
Mikael Pettersson | 9500618 | 2007-01-09 10:51:46 +0100 | [diff] [blame] | 885 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 887 | static void pdc_ata_setup_port(struct ata_port *ap, |
| 888 | void __iomem *base, void __iomem *scr_addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 889 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 890 | ap->ioaddr.cmd_addr = base; |
| 891 | ap->ioaddr.data_addr = base; |
| 892 | ap->ioaddr.feature_addr = |
| 893 | ap->ioaddr.error_addr = base + 0x4; |
| 894 | ap->ioaddr.nsect_addr = base + 0x8; |
| 895 | ap->ioaddr.lbal_addr = base + 0xc; |
| 896 | ap->ioaddr.lbam_addr = base + 0x10; |
| 897 | ap->ioaddr.lbah_addr = base + 0x14; |
| 898 | ap->ioaddr.device_addr = base + 0x18; |
| 899 | ap->ioaddr.command_addr = |
| 900 | ap->ioaddr.status_addr = base + 0x1c; |
| 901 | ap->ioaddr.altstatus_addr = |
| 902 | ap->ioaddr.ctl_addr = base + 0x38; |
| 903 | ap->ioaddr.scr_addr = scr_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 904 | } |
| 905 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 906 | static void pdc_host_init(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 907 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 908 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
| 909 | int is_gen2 = host->ports[0]->flags & PDC_FLAG_GEN_II; |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 910 | int hotplug_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | u32 tmp; |
| 912 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 913 | if (is_gen2) |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 914 | hotplug_offset = PDC2_SATA_PLUG_CSR; |
| 915 | else |
| 916 | hotplug_offset = PDC_SATA_PLUG_CSR; |
| 917 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | /* |
| 919 | * Except for the hotplug stuff, this is voodoo from the |
| 920 | * Promise driver. Label this entire section |
| 921 | * "TODO: figure out why we do this" |
| 922 | */ |
| 923 | |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 924 | /* enable BMR_BURST, maybe change FIFO_SHD to 8 dwords */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | tmp = readl(mmio + PDC_FLASH_CTL); |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 926 | tmp |= 0x02000; /* bit 13 (enable bmr burst) */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 927 | if (!is_gen2) |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 928 | tmp |= 0x10000; /* bit 16 (fifo threshold at 8 dw) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | writel(tmp, mmio + PDC_FLASH_CTL); |
| 930 | |
| 931 | /* clear plug/unplug flags for all ports */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 932 | tmp = readl(mmio + hotplug_offset); |
| 933 | writel(tmp | 0xff, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 935 | /* unmask plug/unplug ints */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 936 | tmp = readl(mmio + hotplug_offset); |
Mikael Pettersson | a77720a | 2007-07-03 01:09:05 +0200 | [diff] [blame] | 937 | writel(tmp & ~0xff0000, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 938 | |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 939 | /* don't initialise TBG or SLEW on 2nd generation chips */ |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 940 | if (is_gen2) |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 941 | return; |
| 942 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | /* reduce TBG clock to 133 Mhz. */ |
| 944 | tmp = readl(mmio + PDC_TBG_MODE); |
| 945 | tmp &= ~0x30000; /* clear bit 17, 16*/ |
| 946 | tmp |= 0x10000; /* set bit 17:16 = 0:1 */ |
| 947 | writel(tmp, mmio + PDC_TBG_MODE); |
| 948 | |
| 949 | readl(mmio + PDC_TBG_MODE); /* flush */ |
| 950 | msleep(10); |
| 951 | |
| 952 | /* adjust slew rate control register. */ |
| 953 | tmp = readl(mmio + PDC_SLEW_CTL); |
| 954 | tmp &= 0xFFFFF03F; /* clear bit 11 ~ 6 */ |
| 955 | tmp |= 0x00000900; /* set bit 11-9 = 100b , bit 8-6 = 100 */ |
| 956 | writel(tmp, mmio + PDC_SLEW_CTL); |
| 957 | } |
| 958 | |
| 959 | static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 960 | { |
| 961 | static int printed_version; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 962 | const struct ata_port_info *pi = &pdc_port_info[ent->driver_data]; |
| 963 | const struct ata_port_info *ppi[PDC_MAX_PORTS]; |
| 964 | struct ata_host *host; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 965 | void __iomem *base; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 966 | int n_ports, i, rc; |
Mikael Pettersson | 5ac2fe5 | 2007-05-06 22:14:01 +0200 | [diff] [blame] | 967 | int is_sataii_tx4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | |
| 969 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 970 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 972 | /* enable and acquire resources */ |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 973 | rc = pcim_enable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | if (rc) |
| 975 | return rc; |
| 976 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 977 | rc = pcim_iomap_regions(pdev, 1 << PDC_MMIO_BAR, DRV_NAME); |
| 978 | if (rc == -EBUSY) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 979 | pcim_pin_device(pdev); |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 980 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 981 | return rc; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 982 | base = pcim_iomap_table(pdev)[PDC_MMIO_BAR]; |
| 983 | |
| 984 | /* determine port configuration and setup host */ |
| 985 | n_ports = 2; |
| 986 | if (pi->flags & PDC_FLAG_4_PORTS) |
| 987 | n_ports = 4; |
| 988 | for (i = 0; i < n_ports; i++) |
| 989 | ppi[i] = pi; |
| 990 | |
| 991 | if (pi->flags & PDC_FLAG_SATA_PATA) { |
| 992 | u8 tmp = readb(base + PDC_FLASH_CTL+1); |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 993 | if (!(tmp & 0x80)) |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 994 | ppi[n_ports++] = pi + 1; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 995 | } |
| 996 | |
| 997 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); |
| 998 | if (!host) { |
| 999 | dev_printk(KERN_ERR, &pdev->dev, "failed to allocate host\n"); |
| 1000 | return -ENOMEM; |
| 1001 | } |
| 1002 | host->iomap = pcim_iomap_table(pdev); |
| 1003 | |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 1004 | is_sataii_tx4 = pdc_is_sataii_tx4(pi->flags); |
Mikael Pettersson | 5ac2fe5 | 2007-05-06 22:14:01 +0200 | [diff] [blame] | 1005 | for (i = 0; i < host->n_ports; i++) { |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 1006 | unsigned int ata_no = pdc_port_no_to_ata_no(i, is_sataii_tx4); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1007 | pdc_ata_setup_port(host->ports[i], |
Mikael Pettersson | d0e5803 | 2007-06-19 21:53:30 +0200 | [diff] [blame] | 1008 | base + 0x200 + ata_no * 0x80, |
| 1009 | base + 0x400 + ata_no * 0x100); |
Mikael Pettersson | 5ac2fe5 | 2007-05-06 22:14:01 +0200 | [diff] [blame] | 1010 | } |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1011 | |
| 1012 | /* initialize adapter */ |
| 1013 | pdc_host_init(host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | |
| 1015 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 1016 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1017 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 1019 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1020 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1022 | /* start host, request IRQ and attach */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | pci_set_master(pdev); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 1024 | return ata_host_activate(host, pdev->irq, pdc_interrupt, IRQF_SHARED, |
| 1025 | &pdc_ata_sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | } |
| 1027 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | static int __init pdc_ata_init(void) |
| 1029 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 1030 | return pci_register_driver(&pdc_ata_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | } |
| 1032 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | static void __exit pdc_ata_exit(void) |
| 1034 | { |
| 1035 | pci_unregister_driver(&pdc_ata_pci_driver); |
| 1036 | } |
| 1037 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1038 | MODULE_AUTHOR("Jeff Garzik"); |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 1039 | MODULE_DESCRIPTION("Promise ATA TX2/TX4/TX4000 low-level driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | MODULE_LICENSE("GPL"); |
| 1041 | MODULE_DEVICE_TABLE(pci, pdc_ata_pci_tbl); |
| 1042 | MODULE_VERSION(DRV_VERSION); |
| 1043 | |
| 1044 | module_init(pdc_ata_init); |
| 1045 | module_exit(pdc_ata_exit); |