Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * sata_promise.c - Promise SATA |
| 3 | * |
| 4 | * Maintained by: Jeff Garzik <jgarzik@pobox.com> |
| 5 | * Please ALWAYS copy linux-ide@vger.kernel.org |
| 6 | * on emails. |
| 7 | * |
| 8 | * Copyright 2003-2004 Red Hat, Inc. |
| 9 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | * |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2, or (at your option) |
| 14 | * any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; see the file COPYING. If not, write to |
| 23 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | * |
| 25 | * |
| 26 | * libata documentation is available via 'make {ps|pdf}docs', |
| 27 | * as Documentation/DocBook/libata.* |
| 28 | * |
| 29 | * Hardware information only available under NDA. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | * |
| 31 | */ |
| 32 | |
| 33 | #include <linux/kernel.h> |
| 34 | #include <linux/module.h> |
| 35 | #include <linux/pci.h> |
| 36 | #include <linux/init.h> |
| 37 | #include <linux/blkdev.h> |
| 38 | #include <linux/delay.h> |
| 39 | #include <linux/interrupt.h> |
| 40 | #include <linux/sched.h> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 41 | #include <linux/device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <scsi/scsi_host.h> |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 43 | #include <scsi/scsi_cmnd.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <linux/libata.h> |
| 45 | #include <asm/io.h> |
| 46 | #include "sata_promise.h" |
| 47 | |
| 48 | #define DRV_NAME "sata_promise" |
Jeff Garzik | 46b027c | 2006-11-14 14:46:17 -0500 | [diff] [blame] | 49 | #define DRV_VERSION "1.05" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | |
| 52 | enum { |
| 53 | PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */ |
| 54 | PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | PDC_FLASH_CTL = 0x44, /* Flash control register */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */ |
| 57 | PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */ |
| 58 | PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 59 | PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */ |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 60 | PDC_TBG_MODE = 0x41C, /* TBG mode (not SATAII) */ |
| 61 | PDC_SLEW_CTL = 0x470, /* slew rate control reg (not SATAII) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | |
| 63 | PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) | |
| 64 | (1<<8) | (1<<9) | (1<<10), |
| 65 | |
| 66 | board_2037x = 0, /* FastTrak S150 TX2plus */ |
| 67 | board_20319 = 1, /* FastTrak S150 TX4 */ |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 68 | board_20619 = 2, /* FastTrak TX4000 */ |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 69 | board_2057x = 3, /* SATAII150 Tx2plus */ |
| 70 | board_40518 = 4, /* SATAII150 Tx4 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 72 | PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 74 | /* PDC_CTLSTAT bit definitions */ |
| 75 | PDC_DMA_ENABLE = (1 << 7), |
| 76 | PDC_IRQ_DISABLE = (1 << 10), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | PDC_RESET = (1 << 11), /* HDMA reset */ |
Jeff Garzik | 5063019 | 2005-12-13 02:29:45 -0500 | [diff] [blame] | 78 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 79 | PDC_COMMON_FLAGS = ATA_FLAG_NO_LEGACY | |
Jeff Garzik | 3d0a59c | 2005-12-13 22:28:19 -0500 | [diff] [blame] | 80 | ATA_FLAG_MMIO | ATA_FLAG_NO_ATAPI | |
| 81 | ATA_FLAG_PIO_POLLING, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 82 | |
| 83 | /* hp->flags bits */ |
| 84 | PDC_FLAG_GEN_II = (1 << 0), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | }; |
| 86 | |
| 87 | |
| 88 | struct pdc_port_priv { |
| 89 | u8 *pkt; |
| 90 | dma_addr_t pkt_dma; |
| 91 | }; |
| 92 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 93 | struct pdc_host_priv { |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 94 | unsigned long flags; |
Mikael Pettersson | 870ae33 | 2007-01-09 10:50:27 +0100 | [diff] [blame^] | 95 | unsigned long port_flags[ATA_MAX_PORTS]; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 96 | }; |
| 97 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg); |
| 99 | static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); |
| 100 | static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 101 | static irqreturn_t pdc_interrupt (int irq, void *dev_instance); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | static void pdc_eng_timeout(struct ata_port *ap); |
| 103 | static int pdc_port_start(struct ata_port *ap); |
| 104 | static void pdc_port_stop(struct ata_port *ap); |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 105 | static void pdc_pata_phy_reset(struct ata_port *ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | static void pdc_qc_prep(struct ata_queued_cmd *qc); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 107 | static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf); |
| 108 | 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] | 109 | static void pdc_irq_clear(struct ata_port *ap); |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 110 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 111 | static void pdc_host_stop(struct ata_host *host); |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 112 | static void pdc_freeze(struct ata_port *ap); |
| 113 | static void pdc_thaw(struct ata_port *ap); |
| 114 | static void pdc_error_handler(struct ata_port *ap); |
| 115 | static void pdc_post_internal_cmd(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 117 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 118 | static struct scsi_host_template pdc_ata_sht = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | .module = THIS_MODULE, |
| 120 | .name = DRV_NAME, |
| 121 | .ioctl = ata_scsi_ioctl, |
| 122 | .queuecommand = ata_scsi_queuecmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | .can_queue = ATA_DEF_QUEUE, |
| 124 | .this_id = ATA_SHT_THIS_ID, |
| 125 | .sg_tablesize = LIBATA_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 127 | .emulated = ATA_SHT_EMULATED, |
| 128 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 129 | .proc_name = DRV_NAME, |
| 130 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 131 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | ccf68c3 | 2006-05-31 18:28:09 +0900 | [diff] [blame] | 132 | .slave_destroy = ata_scsi_slave_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | .bios_param = ata_std_bios_param, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | }; |
| 135 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 136 | static const struct ata_port_operations pdc_sata_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | .port_disable = ata_port_disable, |
| 138 | .tf_load = pdc_tf_load_mmio, |
| 139 | .tf_read = ata_tf_read, |
| 140 | .check_status = ata_check_status, |
| 141 | .exec_command = pdc_exec_command_mmio, |
| 142 | .dev_select = ata_std_dev_select, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 143 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | .qc_prep = pdc_qc_prep, |
| 145 | .qc_issue = pdc_qc_issue_prot, |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 146 | .freeze = pdc_freeze, |
| 147 | .thaw = pdc_thaw, |
| 148 | .error_handler = pdc_error_handler, |
| 149 | .post_internal_cmd = pdc_post_internal_cmd, |
Alan Cox | a6b2c5d | 2006-05-22 16:59:59 +0100 | [diff] [blame] | 150 | .data_xfer = ata_mmio_data_xfer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | .irq_handler = pdc_interrupt, |
| 152 | .irq_clear = pdc_irq_clear, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 153 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | .scr_read = pdc_sata_scr_read, |
| 155 | .scr_write = pdc_sata_scr_write, |
| 156 | .port_start = pdc_port_start, |
| 157 | .port_stop = pdc_port_stop, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 158 | .host_stop = pdc_host_stop, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | }; |
| 160 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 161 | static const struct ata_port_operations pdc_pata_ops = { |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 162 | .port_disable = ata_port_disable, |
| 163 | .tf_load = pdc_tf_load_mmio, |
| 164 | .tf_read = ata_tf_read, |
| 165 | .check_status = ata_check_status, |
| 166 | .exec_command = pdc_exec_command_mmio, |
| 167 | .dev_select = ata_std_dev_select, |
| 168 | |
| 169 | .phy_reset = pdc_pata_phy_reset, |
| 170 | |
| 171 | .qc_prep = pdc_qc_prep, |
| 172 | .qc_issue = pdc_qc_issue_prot, |
Alan Cox | a6b2c5d | 2006-05-22 16:59:59 +0100 | [diff] [blame] | 173 | .data_xfer = ata_mmio_data_xfer, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 174 | .eng_timeout = pdc_eng_timeout, |
| 175 | .irq_handler = pdc_interrupt, |
| 176 | .irq_clear = pdc_irq_clear, |
| 177 | |
| 178 | .port_start = pdc_port_start, |
| 179 | .port_stop = pdc_port_stop, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 180 | .host_stop = pdc_host_stop, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 181 | }; |
| 182 | |
Arjan van de Ven | 98ac62d | 2005-11-28 10:06:23 +0100 | [diff] [blame] | 183 | static const struct ata_port_info pdc_port_info[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | /* board_2037x */ |
| 185 | { |
| 186 | .sht = &pdc_ata_sht, |
Mikael Pettersson | 870ae33 | 2007-01-09 10:50:27 +0100 | [diff] [blame^] | 187 | .flags = PDC_COMMON_FLAGS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | .pio_mask = 0x1f, /* pio0-4 */ |
| 189 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 190 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 191 | .port_ops = &pdc_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | }, |
| 193 | |
| 194 | /* board_20319 */ |
| 195 | { |
| 196 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 197 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | .pio_mask = 0x1f, /* pio0-4 */ |
| 199 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 200 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 201 | .port_ops = &pdc_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | }, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 203 | |
| 204 | /* board_20619 */ |
| 205 | { |
| 206 | .sht = &pdc_ata_sht, |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 207 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 208 | .pio_mask = 0x1f, /* pio0-4 */ |
| 209 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 210 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 211 | .port_ops = &pdc_pata_ops, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 212 | }, |
Yusuf Iskenderoglu | 5a46fe8 | 2006-01-17 08:06:21 -0500 | [diff] [blame] | 213 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 214 | /* board_2057x */ |
| 215 | { |
| 216 | .sht = &pdc_ata_sht, |
Mikael Pettersson | 870ae33 | 2007-01-09 10:50:27 +0100 | [diff] [blame^] | 217 | .flags = PDC_COMMON_FLAGS, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 218 | .pio_mask = 0x1f, /* pio0-4 */ |
| 219 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 220 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
| 221 | .port_ops = &pdc_sata_ops, |
| 222 | }, |
| 223 | |
| 224 | /* board_40518 */ |
| 225 | { |
| 226 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 227 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 228 | .pio_mask = 0x1f, /* pio0-4 */ |
| 229 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 230 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
| 231 | .port_ops = &pdc_sata_ops, |
| 232 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | }; |
| 234 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 235 | static const struct pci_device_id pdc_ata_pci_tbl[] = { |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 236 | { PCI_VDEVICE(PROMISE, 0x3371), board_2037x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 237 | { PCI_VDEVICE(PROMISE, 0x3373), board_2037x }, |
| 238 | { PCI_VDEVICE(PROMISE, 0x3375), board_2037x }, |
| 239 | { PCI_VDEVICE(PROMISE, 0x3376), board_2037x }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 240 | { PCI_VDEVICE(PROMISE, 0x3570), board_2057x }, |
| 241 | { PCI_VDEVICE(PROMISE, 0x3571), board_2057x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 242 | { PCI_VDEVICE(PROMISE, 0x3574), board_2057x }, |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 243 | { PCI_VDEVICE(PROMISE, 0x3577), board_2057x }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 244 | { PCI_VDEVICE(PROMISE, 0x3d73), board_2057x }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 245 | { PCI_VDEVICE(PROMISE, 0x3d75), board_2057x }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 247 | { PCI_VDEVICE(PROMISE, 0x3318), board_20319 }, |
| 248 | { PCI_VDEVICE(PROMISE, 0x3319), board_20319 }, |
| 249 | { PCI_VDEVICE(PROMISE, 0x3515), board_20319 }, |
| 250 | { PCI_VDEVICE(PROMISE, 0x3519), board_20319 }, |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 251 | { PCI_VDEVICE(PROMISE, 0x3d17), board_40518 }, |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 252 | { PCI_VDEVICE(PROMISE, 0x3d18), board_40518 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 254 | { PCI_VDEVICE(PROMISE, 0x6629), board_20619 }, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 255 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | { } /* terminate list */ |
| 257 | }; |
| 258 | |
| 259 | |
| 260 | static struct pci_driver pdc_ata_pci_driver = { |
| 261 | .name = DRV_NAME, |
| 262 | .id_table = pdc_ata_pci_tbl, |
| 263 | .probe = pdc_ata_init_one, |
| 264 | .remove = ata_pci_remove_one, |
| 265 | }; |
| 266 | |
| 267 | |
| 268 | static int pdc_port_start(struct ata_port *ap) |
| 269 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 270 | struct device *dev = ap->host->dev; |
Mikael Pettersson | 599b720 | 2006-12-01 10:55:58 +0100 | [diff] [blame] | 271 | struct pdc_host_priv *hp = ap->host->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | struct pdc_port_priv *pp; |
| 273 | int rc; |
| 274 | |
Mikael Pettersson | 870ae33 | 2007-01-09 10:50:27 +0100 | [diff] [blame^] | 275 | /* fix up port flags and cable type for SATA+PATA chips */ |
| 276 | ap->flags |= hp->port_flags[ap->port_no]; |
| 277 | if (ap->flags & ATA_FLAG_SATA) |
| 278 | ap->cbl = ATA_CBL_SATA; |
| 279 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | rc = ata_port_start(ap); |
| 281 | if (rc) |
| 282 | return rc; |
| 283 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 284 | pp = kzalloc(sizeof(*pp), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | if (!pp) { |
| 286 | rc = -ENOMEM; |
| 287 | goto err_out; |
| 288 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | |
| 290 | pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL); |
| 291 | if (!pp->pkt) { |
| 292 | rc = -ENOMEM; |
| 293 | goto err_out_kfree; |
| 294 | } |
| 295 | |
| 296 | ap->private_data = pp; |
| 297 | |
Mikael Pettersson | 599b720 | 2006-12-01 10:55:58 +0100 | [diff] [blame] | 298 | /* fix up PHYMODE4 align timing */ |
| 299 | if ((hp->flags & PDC_FLAG_GEN_II) && sata_scr_valid(ap)) { |
| 300 | void __iomem *mmio = (void __iomem *) ap->ioaddr.scr_addr; |
| 301 | unsigned int tmp; |
| 302 | |
| 303 | tmp = readl(mmio + 0x014); |
| 304 | tmp = (tmp & ~3) | 1; /* set bits 1:0 = 0:1 */ |
| 305 | writel(tmp, mmio + 0x014); |
| 306 | } |
| 307 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | return 0; |
| 309 | |
| 310 | err_out_kfree: |
| 311 | kfree(pp); |
| 312 | err_out: |
| 313 | ata_port_stop(ap); |
| 314 | return rc; |
| 315 | } |
| 316 | |
| 317 | |
| 318 | static void pdc_port_stop(struct ata_port *ap) |
| 319 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 320 | struct device *dev = ap->host->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | struct pdc_port_priv *pp = ap->private_data; |
| 322 | |
| 323 | ap->private_data = NULL; |
| 324 | dma_free_coherent(dev, 128, pp->pkt, pp->pkt_dma); |
| 325 | kfree(pp); |
| 326 | ata_port_stop(ap); |
| 327 | } |
| 328 | |
| 329 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 330 | static void pdc_host_stop(struct ata_host *host) |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 331 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 332 | struct pdc_host_priv *hp = host->private_data; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 333 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 334 | ata_pci_host_stop(host); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 335 | |
| 336 | kfree(hp); |
| 337 | } |
| 338 | |
| 339 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | static void pdc_reset_port(struct ata_port *ap) |
| 341 | { |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 342 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | unsigned int i; |
| 344 | u32 tmp; |
| 345 | |
| 346 | for (i = 11; i > 0; i--) { |
| 347 | tmp = readl(mmio); |
| 348 | if (tmp & PDC_RESET) |
| 349 | break; |
| 350 | |
| 351 | udelay(100); |
| 352 | |
| 353 | tmp |= PDC_RESET; |
| 354 | writel(tmp, mmio); |
| 355 | } |
| 356 | |
| 357 | tmp &= ~PDC_RESET; |
| 358 | writel(tmp, mmio); |
| 359 | readl(mmio); /* flush */ |
| 360 | } |
| 361 | |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 362 | static void pdc_pata_cbl_detect(struct ata_port *ap) |
| 363 | { |
| 364 | u8 tmp; |
Al Viro | 03dc550 | 2006-10-10 22:48:07 +0100 | [diff] [blame] | 365 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT + 0x03; |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 366 | |
| 367 | tmp = readb(mmio); |
| 368 | |
| 369 | if (tmp & 0x01) { |
| 370 | ap->cbl = ATA_CBL_PATA40; |
| 371 | ap->udma_mask &= ATA_UDMA_MASK_40C; |
| 372 | } else |
| 373 | ap->cbl = ATA_CBL_PATA80; |
| 374 | } |
| 375 | |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 376 | static void pdc_pata_phy_reset(struct ata_port *ap) |
| 377 | { |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 378 | pdc_pata_cbl_detect(ap); |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 379 | pdc_reset_port(ap); |
| 380 | ata_port_probe(ap); |
| 381 | ata_bus_reset(ap); |
| 382 | } |
| 383 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg) |
| 385 | { |
Mikael Pettersson | 870ae33 | 2007-01-09 10:50:27 +0100 | [diff] [blame^] | 386 | if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | return 0xffffffffU; |
Al Viro | b181d3b | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 388 | return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | } |
| 390 | |
| 391 | |
| 392 | static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, |
| 393 | u32 val) |
| 394 | { |
Mikael Pettersson | 870ae33 | 2007-01-09 10:50:27 +0100 | [diff] [blame^] | 395 | if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | return; |
Al Viro | b181d3b | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 397 | writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | } |
| 399 | |
| 400 | static void pdc_qc_prep(struct ata_queued_cmd *qc) |
| 401 | { |
| 402 | struct pdc_port_priv *pp = qc->ap->private_data; |
| 403 | unsigned int i; |
| 404 | |
| 405 | VPRINTK("ENTER\n"); |
| 406 | |
| 407 | switch (qc->tf.protocol) { |
| 408 | case ATA_PROT_DMA: |
| 409 | ata_qc_prep(qc); |
| 410 | /* fall through */ |
| 411 | |
| 412 | case ATA_PROT_NODATA: |
| 413 | i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma, |
| 414 | qc->dev->devno, pp->pkt); |
| 415 | |
| 416 | if (qc->tf.flags & ATA_TFLAG_LBA48) |
| 417 | i = pdc_prep_lba48(&qc->tf, pp->pkt, i); |
| 418 | else |
| 419 | i = pdc_prep_lba28(&qc->tf, pp->pkt, i); |
| 420 | |
| 421 | pdc_pkt_footer(&qc->tf, pp->pkt, i); |
| 422 | break; |
| 423 | |
| 424 | default: |
| 425 | break; |
| 426 | } |
| 427 | } |
| 428 | |
Mikael Pettersson | 25b93d8 | 2006-12-07 00:06:51 +0100 | [diff] [blame] | 429 | static void pdc_freeze(struct ata_port *ap) |
| 430 | { |
| 431 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr; |
| 432 | u32 tmp; |
| 433 | |
| 434 | tmp = readl(mmio + PDC_CTLSTAT); |
| 435 | tmp |= PDC_IRQ_DISABLE; |
| 436 | tmp &= ~PDC_DMA_ENABLE; |
| 437 | writel(tmp, mmio + PDC_CTLSTAT); |
| 438 | readl(mmio + PDC_CTLSTAT); /* flush */ |
| 439 | } |
| 440 | |
| 441 | static void pdc_thaw(struct ata_port *ap) |
| 442 | { |
| 443 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr; |
| 444 | u32 tmp; |
| 445 | |
| 446 | /* clear IRQ */ |
| 447 | readl(mmio + PDC_INT_SEQMASK); |
| 448 | |
| 449 | /* turn IRQ back on */ |
| 450 | tmp = readl(mmio + PDC_CTLSTAT); |
| 451 | tmp &= ~PDC_IRQ_DISABLE; |
| 452 | writel(tmp, mmio + PDC_CTLSTAT); |
| 453 | readl(mmio + PDC_CTLSTAT); /* flush */ |
| 454 | } |
| 455 | |
| 456 | static void pdc_error_handler(struct ata_port *ap) |
| 457 | { |
| 458 | ata_reset_fn_t hardreset; |
| 459 | |
| 460 | if (!(ap->pflags & ATA_PFLAG_FROZEN)) |
| 461 | pdc_reset_port(ap); |
| 462 | |
| 463 | hardreset = NULL; |
| 464 | if (sata_scr_valid(ap)) |
| 465 | hardreset = sata_std_hardreset; |
| 466 | |
| 467 | /* perform recovery */ |
| 468 | ata_do_eh(ap, ata_std_prereset, ata_std_softreset, hardreset, |
| 469 | ata_std_postreset); |
| 470 | } |
| 471 | |
| 472 | static void pdc_post_internal_cmd(struct ata_queued_cmd *qc) |
| 473 | { |
| 474 | struct ata_port *ap = qc->ap; |
| 475 | |
| 476 | if (qc->flags & ATA_QCFLAG_FAILED) |
| 477 | qc->err_mask |= AC_ERR_OTHER; |
| 478 | |
| 479 | /* make DMA engine forget about the failed command */ |
| 480 | if (qc->err_mask) |
| 481 | pdc_reset_port(ap); |
| 482 | } |
| 483 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | static void pdc_eng_timeout(struct ata_port *ap) |
| 485 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 486 | struct ata_host *host = ap->host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | u8 drv_stat; |
| 488 | struct ata_queued_cmd *qc; |
Jeff Garzik | b8f6153 | 2005-08-25 22:01:20 -0400 | [diff] [blame] | 489 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | |
| 491 | DPRINTK("ENTER\n"); |
| 492 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 493 | spin_lock_irqsave(&host->lock, flags); |
Jeff Garzik | b8f6153 | 2005-08-25 22:01:20 -0400 | [diff] [blame] | 494 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | qc = ata_qc_from_tag(ap, ap->active_tag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | switch (qc->tf.protocol) { |
| 498 | case ATA_PROT_DMA: |
| 499 | case ATA_PROT_NODATA: |
Tejun Heo | f15a1da | 2006-05-15 20:57:56 +0900 | [diff] [blame] | 500 | ata_port_printk(ap, KERN_ERR, "command timeout\n"); |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 501 | drv_stat = ata_wait_idle(ap); |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 502 | qc->err_mask |= __ac_err_mask(drv_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | break; |
| 504 | |
| 505 | default: |
| 506 | drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
| 507 | |
Tejun Heo | f15a1da | 2006-05-15 20:57:56 +0900 | [diff] [blame] | 508 | ata_port_printk(ap, KERN_ERR, |
| 509 | "unknown timeout, cmd 0x%x stat 0x%x\n", |
| 510 | qc->tf.command, drv_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 512 | qc->err_mask |= ac_err_mask(drv_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | break; |
| 514 | } |
| 515 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 516 | spin_unlock_irqrestore(&host->lock, flags); |
Tejun Heo | f637902 | 2006-02-10 15:10:48 +0900 | [diff] [blame] | 517 | ata_eh_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | DPRINTK("EXIT\n"); |
| 519 | } |
| 520 | |
| 521 | static inline unsigned int pdc_host_intr( struct ata_port *ap, |
| 522 | struct ata_queued_cmd *qc) |
| 523 | { |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 524 | unsigned int handled = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | u32 tmp; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 526 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | |
| 528 | tmp = readl(mmio); |
| 529 | if (tmp & PDC_ERR_MASK) { |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 530 | qc->err_mask |= AC_ERR_DEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | pdc_reset_port(ap); |
| 532 | } |
| 533 | |
| 534 | switch (qc->tf.protocol) { |
| 535 | case ATA_PROT_DMA: |
| 536 | case ATA_PROT_NODATA: |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 537 | qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); |
| 538 | ata_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | handled = 1; |
| 540 | break; |
| 541 | |
| 542 | default: |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 543 | ap->stats.idle_irq++; |
| 544 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | } |
| 546 | |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 547 | return handled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | static void pdc_irq_clear(struct ata_port *ap) |
| 551 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 552 | struct ata_host *host = ap->host; |
| 553 | void __iomem *mmio = host->mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | |
| 555 | readl(mmio + PDC_INT_SEQMASK); |
| 556 | } |
| 557 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 558 | static irqreturn_t pdc_interrupt (int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 560 | struct ata_host *host = dev_instance; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | struct ata_port *ap; |
| 562 | u32 mask = 0; |
| 563 | unsigned int i, tmp; |
| 564 | unsigned int handled = 0; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 565 | void __iomem *mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | |
| 567 | VPRINTK("ENTER\n"); |
| 568 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 569 | if (!host || !host->mmio_base) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | VPRINTK("QUICK EXIT\n"); |
| 571 | return IRQ_NONE; |
| 572 | } |
| 573 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 574 | mmio_base = host->mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | |
| 576 | /* reading should also clear interrupts */ |
| 577 | mask = readl(mmio_base + PDC_INT_SEQMASK); |
| 578 | |
| 579 | if (mask == 0xffffffff) { |
| 580 | VPRINTK("QUICK EXIT 2\n"); |
| 581 | return IRQ_NONE; |
| 582 | } |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 583 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 584 | spin_lock(&host->lock); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 585 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | mask &= 0xffff; /* only 16 tags possible */ |
| 587 | if (!mask) { |
| 588 | VPRINTK("QUICK EXIT 3\n"); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 589 | goto done_irq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | } |
| 591 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | writel(mask, mmio_base + PDC_INT_SEQMASK); |
| 593 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 594 | for (i = 0; i < host->n_ports; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | VPRINTK("port %u\n", i); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 596 | ap = host->ports[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | tmp = mask & (1 << (i + 1)); |
Tejun Heo | c138950 | 2005-08-22 14:59:24 +0900 | [diff] [blame] | 598 | if (tmp && ap && |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 599 | !(ap->flags & ATA_FLAG_DISABLED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | struct ata_queued_cmd *qc; |
| 601 | |
| 602 | qc = ata_qc_from_tag(ap, ap->active_tag); |
Albert Lee | e50362e | 2005-09-27 17:39:50 +0800 | [diff] [blame] | 603 | if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | handled += pdc_host_intr(ap, qc); |
| 605 | } |
| 606 | } |
| 607 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | VPRINTK("EXIT\n"); |
| 609 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 610 | done_irq: |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 611 | spin_unlock(&host->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | return IRQ_RETVAL(handled); |
| 613 | } |
| 614 | |
| 615 | static inline void pdc_packet_start(struct ata_queued_cmd *qc) |
| 616 | { |
| 617 | struct ata_port *ap = qc->ap; |
| 618 | struct pdc_port_priv *pp = ap->private_data; |
| 619 | unsigned int port_no = ap->port_no; |
| 620 | u8 seq = (u8) (port_no + 1); |
| 621 | |
| 622 | VPRINTK("ENTER, ap %p\n", ap); |
| 623 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 624 | writel(0x00000001, ap->host->mmio_base + (seq * 4)); |
| 625 | readl(ap->host->mmio_base + (seq * 4)); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | |
| 627 | pp->pkt[2] = seq; |
| 628 | wmb(); /* flush PRD, pkt writes */ |
Al Viro | b181d3b | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 629 | writel(pp->pkt_dma, (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); |
| 630 | readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | } |
| 632 | |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 633 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | { |
| 635 | switch (qc->tf.protocol) { |
| 636 | case ATA_PROT_DMA: |
| 637 | case ATA_PROT_NODATA: |
| 638 | pdc_packet_start(qc); |
| 639 | return 0; |
| 640 | |
| 641 | case ATA_PROT_ATAPI_DMA: |
| 642 | BUG(); |
| 643 | break; |
| 644 | |
| 645 | default: |
| 646 | break; |
| 647 | } |
| 648 | |
| 649 | return ata_qc_issue_prot(qc); |
| 650 | } |
| 651 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 652 | 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] | 653 | { |
| 654 | WARN_ON (tf->protocol == ATA_PROT_DMA || |
| 655 | tf->protocol == ATA_PROT_NODATA); |
| 656 | ata_tf_load(ap, tf); |
| 657 | } |
| 658 | |
| 659 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 660 | 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] | 661 | { |
| 662 | WARN_ON (tf->protocol == ATA_PROT_DMA || |
| 663 | tf->protocol == ATA_PROT_NODATA); |
| 664 | ata_exec_command(ap, tf); |
| 665 | } |
| 666 | |
| 667 | |
| 668 | static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base) |
| 669 | { |
| 670 | port->cmd_addr = base; |
| 671 | port->data_addr = base; |
| 672 | port->feature_addr = |
| 673 | port->error_addr = base + 0x4; |
| 674 | port->nsect_addr = base + 0x8; |
| 675 | port->lbal_addr = base + 0xc; |
| 676 | port->lbam_addr = base + 0x10; |
| 677 | port->lbah_addr = base + 0x14; |
| 678 | port->device_addr = base + 0x18; |
| 679 | port->command_addr = |
| 680 | port->status_addr = base + 0x1c; |
| 681 | port->altstatus_addr = |
| 682 | port->ctl_addr = base + 0x38; |
| 683 | } |
| 684 | |
| 685 | |
| 686 | static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe) |
| 687 | { |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 688 | void __iomem *mmio = pe->mmio_base; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 689 | struct pdc_host_priv *hp = pe->private_data; |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 690 | int hotplug_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | u32 tmp; |
| 692 | |
Mikael Pettersson | d324d462 | 2006-12-06 09:55:43 +0100 | [diff] [blame] | 693 | if (hp->flags & PDC_FLAG_GEN_II) |
| 694 | hotplug_offset = PDC2_SATA_PLUG_CSR; |
| 695 | else |
| 696 | hotplug_offset = PDC_SATA_PLUG_CSR; |
| 697 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | /* |
| 699 | * Except for the hotplug stuff, this is voodoo from the |
| 700 | * Promise driver. Label this entire section |
| 701 | * "TODO: figure out why we do this" |
| 702 | */ |
| 703 | |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 704 | /* enable BMR_BURST, maybe change FIFO_SHD to 8 dwords */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | tmp = readl(mmio + PDC_FLASH_CTL); |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 706 | tmp |= 0x02000; /* bit 13 (enable bmr burst) */ |
| 707 | if (!(hp->flags & PDC_FLAG_GEN_II)) |
| 708 | tmp |= 0x10000; /* bit 16 (fifo threshold at 8 dw) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | writel(tmp, mmio + PDC_FLASH_CTL); |
| 710 | |
| 711 | /* clear plug/unplug flags for all ports */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 712 | tmp = readl(mmio + hotplug_offset); |
| 713 | writel(tmp | 0xff, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | |
| 715 | /* mask plug/unplug ints */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 716 | tmp = readl(mmio + hotplug_offset); |
| 717 | writel(tmp | 0xff0000, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 719 | /* don't initialise TBG or SLEW on 2nd generation chips */ |
| 720 | if (hp->flags & PDC_FLAG_GEN_II) |
| 721 | return; |
| 722 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | /* reduce TBG clock to 133 Mhz. */ |
| 724 | tmp = readl(mmio + PDC_TBG_MODE); |
| 725 | tmp &= ~0x30000; /* clear bit 17, 16*/ |
| 726 | tmp |= 0x10000; /* set bit 17:16 = 0:1 */ |
| 727 | writel(tmp, mmio + PDC_TBG_MODE); |
| 728 | |
| 729 | readl(mmio + PDC_TBG_MODE); /* flush */ |
| 730 | msleep(10); |
| 731 | |
| 732 | /* adjust slew rate control register. */ |
| 733 | tmp = readl(mmio + PDC_SLEW_CTL); |
| 734 | tmp &= 0xFFFFF03F; /* clear bit 11 ~ 6 */ |
| 735 | tmp |= 0x00000900; /* set bit 11-9 = 100b , bit 8-6 = 100 */ |
| 736 | writel(tmp, mmio + PDC_SLEW_CTL); |
| 737 | } |
| 738 | |
| 739 | static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 740 | { |
| 741 | static int printed_version; |
| 742 | struct ata_probe_ent *probe_ent = NULL; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 743 | struct pdc_host_priv *hp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | unsigned long base; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 745 | void __iomem *mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | unsigned int board_idx = (unsigned int) ent->driver_data; |
| 747 | int pci_dev_busy = 0; |
| 748 | int rc; |
Mikael Pettersson | 870ae33 | 2007-01-09 10:50:27 +0100 | [diff] [blame^] | 749 | u8 tmp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | |
| 751 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 752 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | rc = pci_enable_device(pdev); |
| 755 | if (rc) |
| 756 | return rc; |
| 757 | |
| 758 | rc = pci_request_regions(pdev, DRV_NAME); |
| 759 | if (rc) { |
| 760 | pci_dev_busy = 1; |
| 761 | goto err_out; |
| 762 | } |
| 763 | |
| 764 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 765 | if (rc) |
| 766 | goto err_out_regions; |
| 767 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 768 | if (rc) |
| 769 | goto err_out_regions; |
| 770 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 771 | probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | if (probe_ent == NULL) { |
| 773 | rc = -ENOMEM; |
| 774 | goto err_out_regions; |
| 775 | } |
| 776 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | probe_ent->dev = pci_dev_to_dev(pdev); |
| 778 | INIT_LIST_HEAD(&probe_ent->node); |
| 779 | |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 780 | mmio_base = pci_iomap(pdev, 3, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | if (mmio_base == NULL) { |
| 782 | rc = -ENOMEM; |
| 783 | goto err_out_free_ent; |
| 784 | } |
| 785 | base = (unsigned long) mmio_base; |
| 786 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 787 | hp = kzalloc(sizeof(*hp), GFP_KERNEL); |
| 788 | if (hp == NULL) { |
| 789 | rc = -ENOMEM; |
| 790 | goto err_out_free_ent; |
| 791 | } |
| 792 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 793 | probe_ent->private_data = hp; |
| 794 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | probe_ent->sht = pdc_port_info[board_idx].sht; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 796 | probe_ent->port_flags = pdc_port_info[board_idx].flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask; |
| 798 | probe_ent->mwdma_mask = pdc_port_info[board_idx].mwdma_mask; |
| 799 | probe_ent->udma_mask = pdc_port_info[board_idx].udma_mask; |
| 800 | probe_ent->port_ops = pdc_port_info[board_idx].port_ops; |
| 801 | |
| 802 | probe_ent->irq = pdev->irq; |
Thomas Gleixner | 1d6f359 | 2006-07-01 19:29:42 -0700 | [diff] [blame] | 803 | probe_ent->irq_flags = IRQF_SHARED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | probe_ent->mmio_base = mmio_base; |
| 805 | |
| 806 | pdc_ata_setup_port(&probe_ent->port[0], base + 0x200); |
| 807 | pdc_ata_setup_port(&probe_ent->port[1], base + 0x280); |
| 808 | |
| 809 | probe_ent->port[0].scr_addr = base + 0x400; |
| 810 | probe_ent->port[1].scr_addr = base + 0x500; |
| 811 | |
| 812 | /* notice 4-port boards */ |
| 813 | switch (board_idx) { |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 814 | case board_40518: |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 815 | hp->flags |= PDC_FLAG_GEN_II; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 816 | /* Fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | case board_20319: |
| 818 | probe_ent->n_ports = 4; |
| 819 | |
| 820 | pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); |
| 821 | pdc_ata_setup_port(&probe_ent->port[3], base + 0x380); |
| 822 | |
| 823 | probe_ent->port[2].scr_addr = base + 0x600; |
| 824 | probe_ent->port[3].scr_addr = base + 0x700; |
| 825 | break; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 826 | case board_2057x: |
Mikael Pettersson | b2d1eee | 2006-11-22 22:00:15 +0100 | [diff] [blame] | 827 | hp->flags |= PDC_FLAG_GEN_II; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 828 | /* Fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | case board_2037x: |
Mikael Pettersson | 870ae33 | 2007-01-09 10:50:27 +0100 | [diff] [blame^] | 830 | /* TX2plus boards also have a PATA port */ |
| 831 | tmp = readb(mmio_base + PDC_FLASH_CTL+1); |
| 832 | if (!(tmp & 0x80)) { |
| 833 | probe_ent->n_ports = 3; |
| 834 | pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); |
| 835 | hp->port_flags[2] = ATA_FLAG_SLAVE_POSS; |
| 836 | printk(KERN_INFO DRV_NAME " PATA port found\n"); |
| 837 | } else |
| 838 | probe_ent->n_ports = 2; |
| 839 | hp->port_flags[0] = ATA_FLAG_SATA; |
| 840 | hp->port_flags[1] = ATA_FLAG_SATA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | break; |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 842 | case board_20619: |
| 843 | probe_ent->n_ports = 4; |
| 844 | |
| 845 | pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); |
| 846 | pdc_ata_setup_port(&probe_ent->port[3], base + 0x380); |
| 847 | |
| 848 | probe_ent->port[2].scr_addr = base + 0x600; |
| 849 | probe_ent->port[3].scr_addr = base + 0x700; |
Jeff Garzik | 6c9e5eb | 2005-11-30 16:42:55 -0500 | [diff] [blame] | 850 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | default: |
| 852 | BUG(); |
| 853 | break; |
| 854 | } |
| 855 | |
| 856 | pci_set_master(pdev); |
| 857 | |
| 858 | /* initialize adapter */ |
| 859 | pdc_host_init(board_idx, probe_ent); |
| 860 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 861 | /* FIXME: Need any other frees than hp? */ |
| 862 | if (!ata_device_add(probe_ent)) |
| 863 | kfree(hp); |
| 864 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 865 | kfree(probe_ent); |
| 866 | |
| 867 | return 0; |
| 868 | |
| 869 | err_out_free_ent: |
| 870 | kfree(probe_ent); |
| 871 | err_out_regions: |
| 872 | pci_release_regions(pdev); |
| 873 | err_out: |
| 874 | if (!pci_dev_busy) |
| 875 | pci_disable_device(pdev); |
| 876 | return rc; |
| 877 | } |
| 878 | |
| 879 | |
| 880 | static int __init pdc_ata_init(void) |
| 881 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 882 | return pci_register_driver(&pdc_ata_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | } |
| 884 | |
| 885 | |
| 886 | static void __exit pdc_ata_exit(void) |
| 887 | { |
| 888 | pci_unregister_driver(&pdc_ata_pci_driver); |
| 889 | } |
| 890 | |
| 891 | |
| 892 | MODULE_AUTHOR("Jeff Garzik"); |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 893 | MODULE_DESCRIPTION("Promise ATA TX2/TX4/TX4000 low-level driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | MODULE_LICENSE("GPL"); |
| 895 | MODULE_DEVICE_TABLE(pci, pdc_ata_pci_tbl); |
| 896 | MODULE_VERSION(DRV_VERSION); |
| 897 | |
| 898 | module_init(pdc_ata_init); |
| 899 | module_exit(pdc_ata_exit); |