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" |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 49 | #define DRV_VERSION "1.04" |
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 */ |
| 55 | PDC_TBG_MODE = 0x41, /* TBG mode */ |
| 56 | PDC_FLASH_CTL = 0x44, /* Flash control register */ |
| 57 | PDC_PCI_CTL = 0x48, /* PCI control and status register */ |
| 58 | PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */ |
| 59 | PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */ |
| 60 | PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 61 | PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | PDC_SLEW_CTL = 0x470, /* slew rate control reg */ |
| 63 | |
| 64 | PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) | |
| 65 | (1<<8) | (1<<9) | (1<<10), |
| 66 | |
| 67 | board_2037x = 0, /* FastTrak S150 TX2plus */ |
| 68 | board_20319 = 1, /* FastTrak S150 TX4 */ |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 69 | board_20619 = 2, /* FastTrak TX4000 */ |
Yusuf Iskenderoglu | 5a46fe8 | 2006-01-17 08:06:21 -0500 | [diff] [blame] | 70 | board_20771 = 3, /* FastTrak TX2300 */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 71 | board_2057x = 4, /* SATAII150 Tx2plus */ |
| 72 | board_40518 = 5, /* SATAII150 Tx4 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 74 | PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
| 76 | PDC_RESET = (1 << 11), /* HDMA reset */ |
Jeff Garzik | 5063019 | 2005-12-13 02:29:45 -0500 | [diff] [blame] | 77 | |
| 78 | PDC_COMMON_FLAGS = ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST | |
Jeff Garzik | 3d0a59c | 2005-12-13 22:28:19 -0500 | [diff] [blame] | 79 | ATA_FLAG_MMIO | ATA_FLAG_NO_ATAPI | |
| 80 | ATA_FLAG_PIO_POLLING, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | }; |
| 82 | |
| 83 | |
| 84 | struct pdc_port_priv { |
| 85 | u8 *pkt; |
| 86 | dma_addr_t pkt_dma; |
| 87 | }; |
| 88 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 89 | struct pdc_host_priv { |
| 90 | int hotplug_offset; |
| 91 | }; |
| 92 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg); |
| 94 | static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); |
| 95 | 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] | 96 | static irqreturn_t pdc_interrupt (int irq, void *dev_instance); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | static void pdc_eng_timeout(struct ata_port *ap); |
| 98 | static int pdc_port_start(struct ata_port *ap); |
| 99 | static void pdc_port_stop(struct ata_port *ap); |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 100 | static void pdc_pata_phy_reset(struct ata_port *ap); |
| 101 | static void pdc_sata_phy_reset(struct ata_port *ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | static void pdc_qc_prep(struct ata_queued_cmd *qc); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 103 | static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf); |
| 104 | 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] | 105 | static void pdc_irq_clear(struct ata_port *ap); |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 106 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 107 | static void pdc_host_stop(struct ata_host *host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 109 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 110 | static struct scsi_host_template pdc_ata_sht = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | .module = THIS_MODULE, |
| 112 | .name = DRV_NAME, |
| 113 | .ioctl = ata_scsi_ioctl, |
| 114 | .queuecommand = ata_scsi_queuecmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | .can_queue = ATA_DEF_QUEUE, |
| 116 | .this_id = ATA_SHT_THIS_ID, |
| 117 | .sg_tablesize = LIBATA_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 119 | .emulated = ATA_SHT_EMULATED, |
| 120 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 121 | .proc_name = DRV_NAME, |
| 122 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 123 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | ccf68c3 | 2006-05-31 18:28:09 +0900 | [diff] [blame] | 124 | .slave_destroy = ata_scsi_slave_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | .bios_param = ata_std_bios_param, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | }; |
| 127 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 128 | static const struct ata_port_operations pdc_sata_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | .port_disable = ata_port_disable, |
| 130 | .tf_load = pdc_tf_load_mmio, |
| 131 | .tf_read = ata_tf_read, |
| 132 | .check_status = ata_check_status, |
| 133 | .exec_command = pdc_exec_command_mmio, |
| 134 | .dev_select = ata_std_dev_select, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 135 | |
| 136 | .phy_reset = pdc_sata_phy_reset, |
| 137 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | .qc_prep = pdc_qc_prep, |
| 139 | .qc_issue = pdc_qc_issue_prot, |
| 140 | .eng_timeout = pdc_eng_timeout, |
Alan Cox | a6b2c5d | 2006-05-22 16:59:59 +0100 | [diff] [blame] | 141 | .data_xfer = ata_mmio_data_xfer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | .irq_handler = pdc_interrupt, |
| 143 | .irq_clear = pdc_irq_clear, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | .scr_read = pdc_sata_scr_read, |
| 146 | .scr_write = pdc_sata_scr_write, |
| 147 | .port_start = pdc_port_start, |
| 148 | .port_stop = pdc_port_stop, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 149 | .host_stop = pdc_host_stop, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | }; |
| 151 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 152 | static const struct ata_port_operations pdc_pata_ops = { |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 153 | .port_disable = ata_port_disable, |
| 154 | .tf_load = pdc_tf_load_mmio, |
| 155 | .tf_read = ata_tf_read, |
| 156 | .check_status = ata_check_status, |
| 157 | .exec_command = pdc_exec_command_mmio, |
| 158 | .dev_select = ata_std_dev_select, |
| 159 | |
| 160 | .phy_reset = pdc_pata_phy_reset, |
| 161 | |
| 162 | .qc_prep = pdc_qc_prep, |
| 163 | .qc_issue = pdc_qc_issue_prot, |
Alan Cox | a6b2c5d | 2006-05-22 16:59:59 +0100 | [diff] [blame] | 164 | .data_xfer = ata_mmio_data_xfer, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 165 | .eng_timeout = pdc_eng_timeout, |
| 166 | .irq_handler = pdc_interrupt, |
| 167 | .irq_clear = pdc_irq_clear, |
| 168 | |
| 169 | .port_start = pdc_port_start, |
| 170 | .port_stop = pdc_port_stop, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 171 | .host_stop = pdc_host_stop, |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 172 | }; |
| 173 | |
Arjan van de Ven | 98ac62d | 2005-11-28 10:06:23 +0100 | [diff] [blame] | 174 | static const struct ata_port_info pdc_port_info[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | /* board_2037x */ |
| 176 | { |
| 177 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 178 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | .pio_mask = 0x1f, /* pio0-4 */ |
| 180 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 181 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 182 | .port_ops = &pdc_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | }, |
| 184 | |
| 185 | /* board_20319 */ |
| 186 | { |
| 187 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 188 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | .pio_mask = 0x1f, /* pio0-4 */ |
| 190 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 191 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 192 | .port_ops = &pdc_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | }, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 194 | |
| 195 | /* board_20619 */ |
| 196 | { |
| 197 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 198 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 199 | .pio_mask = 0x1f, /* pio0-4 */ |
| 200 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 201 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 202 | .port_ops = &pdc_pata_ops, |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 203 | }, |
Yusuf Iskenderoglu | 5a46fe8 | 2006-01-17 08:06:21 -0500 | [diff] [blame] | 204 | |
| 205 | /* board_20771 */ |
| 206 | { |
| 207 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 208 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Yusuf Iskenderoglu | 5a46fe8 | 2006-01-17 08:06:21 -0500 | [diff] [blame] | 209 | .pio_mask = 0x1f, /* pio0-4 */ |
| 210 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 211 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
| 212 | .port_ops = &pdc_sata_ops, |
| 213 | }, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 214 | |
| 215 | /* board_2057x */ |
| 216 | { |
| 217 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 218 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 219 | .pio_mask = 0x1f, /* pio0-4 */ |
| 220 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 221 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
| 222 | .port_ops = &pdc_sata_ops, |
| 223 | }, |
| 224 | |
| 225 | /* board_40518 */ |
| 226 | { |
| 227 | .sht = &pdc_ata_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 228 | .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 229 | .pio_mask = 0x1f, /* pio0-4 */ |
| 230 | .mwdma_mask = 0x07, /* mwdma0-2 */ |
| 231 | .udma_mask = 0x7f, /* udma0-6 ; FIXME */ |
| 232 | .port_ops = &pdc_sata_ops, |
| 233 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | }; |
| 235 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 236 | static const struct pci_device_id pdc_ata_pci_tbl[] = { |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 237 | { PCI_VDEVICE(PROMISE, 0x3371), board_2037x }, |
| 238 | { PCI_VDEVICE(PROMISE, 0x3570), board_2037x }, |
| 239 | { PCI_VDEVICE(PROMISE, 0x3571), board_2037x }, |
| 240 | { PCI_VDEVICE(PROMISE, 0x3373), board_2037x }, |
| 241 | { PCI_VDEVICE(PROMISE, 0x3375), board_2037x }, |
| 242 | { PCI_VDEVICE(PROMISE, 0x3376), board_2037x }, |
| 243 | { PCI_VDEVICE(PROMISE, 0x3574), board_2057x }, |
| 244 | { PCI_VDEVICE(PROMISE, 0x3d75), board_2057x }, |
| 245 | { PCI_VDEVICE(PROMISE, 0x3d73), board_2037x }, |
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 }, |
| 251 | { PCI_VDEVICE(PROMISE, 0x3d17), board_20319 }, |
| 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 | |
Jeff Garzik | 8419dc8 | 2006-07-24 03:37:52 -0400 | [diff] [blame] | 256 | /* TODO: remove all associated board_20771 code, as it completely |
| 257 | * duplicates board_2037x code, unless reason for separation can be |
| 258 | * divined. |
| 259 | */ |
| 260 | #if 0 |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 261 | { PCI_VDEVICE(PROMISE, 0x3570), board_20771 }, |
Jeff Garzik | 8419dc8 | 2006-07-24 03:37:52 -0400 | [diff] [blame] | 262 | #endif |
| 263 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | { } /* terminate list */ |
| 265 | }; |
| 266 | |
| 267 | |
| 268 | static struct pci_driver pdc_ata_pci_driver = { |
| 269 | .name = DRV_NAME, |
| 270 | .id_table = pdc_ata_pci_tbl, |
| 271 | .probe = pdc_ata_init_one, |
| 272 | .remove = ata_pci_remove_one, |
| 273 | }; |
| 274 | |
| 275 | |
| 276 | static int pdc_port_start(struct ata_port *ap) |
| 277 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 278 | struct device *dev = ap->host->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | struct pdc_port_priv *pp; |
| 280 | int rc; |
| 281 | |
| 282 | rc = ata_port_start(ap); |
| 283 | if (rc) |
| 284 | return rc; |
| 285 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 286 | pp = kzalloc(sizeof(*pp), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | if (!pp) { |
| 288 | rc = -ENOMEM; |
| 289 | goto err_out; |
| 290 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | |
| 292 | pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL); |
| 293 | if (!pp->pkt) { |
| 294 | rc = -ENOMEM; |
| 295 | goto err_out_kfree; |
| 296 | } |
| 297 | |
| 298 | ap->private_data = pp; |
| 299 | |
| 300 | return 0; |
| 301 | |
| 302 | err_out_kfree: |
| 303 | kfree(pp); |
| 304 | err_out: |
| 305 | ata_port_stop(ap); |
| 306 | return rc; |
| 307 | } |
| 308 | |
| 309 | |
| 310 | static void pdc_port_stop(struct ata_port *ap) |
| 311 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 312 | struct device *dev = ap->host->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | struct pdc_port_priv *pp = ap->private_data; |
| 314 | |
| 315 | ap->private_data = NULL; |
| 316 | dma_free_coherent(dev, 128, pp->pkt, pp->pkt_dma); |
| 317 | kfree(pp); |
| 318 | ata_port_stop(ap); |
| 319 | } |
| 320 | |
| 321 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 322 | static void pdc_host_stop(struct ata_host *host) |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 323 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 324 | struct pdc_host_priv *hp = host->private_data; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 325 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 326 | ata_pci_host_stop(host); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 327 | |
| 328 | kfree(hp); |
| 329 | } |
| 330 | |
| 331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | static void pdc_reset_port(struct ata_port *ap) |
| 333 | { |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 334 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | unsigned int i; |
| 336 | u32 tmp; |
| 337 | |
| 338 | for (i = 11; i > 0; i--) { |
| 339 | tmp = readl(mmio); |
| 340 | if (tmp & PDC_RESET) |
| 341 | break; |
| 342 | |
| 343 | udelay(100); |
| 344 | |
| 345 | tmp |= PDC_RESET; |
| 346 | writel(tmp, mmio); |
| 347 | } |
| 348 | |
| 349 | tmp &= ~PDC_RESET; |
| 350 | writel(tmp, mmio); |
| 351 | readl(mmio); /* flush */ |
| 352 | } |
| 353 | |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 354 | static void pdc_sata_phy_reset(struct ata_port *ap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | { |
| 356 | pdc_reset_port(ap); |
| 357 | sata_phy_reset(ap); |
| 358 | } |
| 359 | |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 360 | static void pdc_pata_cbl_detect(struct ata_port *ap) |
| 361 | { |
| 362 | u8 tmp; |
Al Viro | 03dc550 | 2006-10-10 22:48:07 +0100 | [diff] [blame^] | 363 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT + 0x03; |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 364 | |
| 365 | tmp = readb(mmio); |
| 366 | |
| 367 | if (tmp & 0x01) { |
| 368 | ap->cbl = ATA_CBL_PATA40; |
| 369 | ap->udma_mask &= ATA_UDMA_MASK_40C; |
| 370 | } else |
| 371 | ap->cbl = ATA_CBL_PATA80; |
| 372 | } |
| 373 | |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 374 | static void pdc_pata_phy_reset(struct ata_port *ap) |
| 375 | { |
Jeff Garzik | d3fb4e8 | 2006-05-24 01:43:25 -0400 | [diff] [blame] | 376 | pdc_pata_cbl_detect(ap); |
Jeff Garzik | 2cba582 | 2005-08-29 05:12:30 -0400 | [diff] [blame] | 377 | pdc_reset_port(ap); |
| 378 | ata_port_probe(ap); |
| 379 | ata_bus_reset(ap); |
| 380 | } |
| 381 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg) |
| 383 | { |
| 384 | if (sc_reg > SCR_CONTROL) |
| 385 | return 0xffffffffU; |
Al Viro | b181d3b | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 386 | return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | |
| 390 | static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, |
| 391 | u32 val) |
| 392 | { |
| 393 | if (sc_reg > SCR_CONTROL) |
| 394 | return; |
Al Viro | b181d3b | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 395 | writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | } |
| 397 | |
| 398 | static void pdc_qc_prep(struct ata_queued_cmd *qc) |
| 399 | { |
| 400 | struct pdc_port_priv *pp = qc->ap->private_data; |
| 401 | unsigned int i; |
| 402 | |
| 403 | VPRINTK("ENTER\n"); |
| 404 | |
| 405 | switch (qc->tf.protocol) { |
| 406 | case ATA_PROT_DMA: |
| 407 | ata_qc_prep(qc); |
| 408 | /* fall through */ |
| 409 | |
| 410 | case ATA_PROT_NODATA: |
| 411 | i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma, |
| 412 | qc->dev->devno, pp->pkt); |
| 413 | |
| 414 | if (qc->tf.flags & ATA_TFLAG_LBA48) |
| 415 | i = pdc_prep_lba48(&qc->tf, pp->pkt, i); |
| 416 | else |
| 417 | i = pdc_prep_lba28(&qc->tf, pp->pkt, i); |
| 418 | |
| 419 | pdc_pkt_footer(&qc->tf, pp->pkt, i); |
| 420 | break; |
| 421 | |
| 422 | default: |
| 423 | break; |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | static void pdc_eng_timeout(struct ata_port *ap) |
| 428 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 429 | struct ata_host *host = ap->host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | u8 drv_stat; |
| 431 | struct ata_queued_cmd *qc; |
Jeff Garzik | b8f6153 | 2005-08-25 22:01:20 -0400 | [diff] [blame] | 432 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | |
| 434 | DPRINTK("ENTER\n"); |
| 435 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 436 | spin_lock_irqsave(&host->lock, flags); |
Jeff Garzik | b8f6153 | 2005-08-25 22:01:20 -0400 | [diff] [blame] | 437 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | qc = ata_qc_from_tag(ap, ap->active_tag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | switch (qc->tf.protocol) { |
| 441 | case ATA_PROT_DMA: |
| 442 | case ATA_PROT_NODATA: |
Tejun Heo | f15a1da | 2006-05-15 20:57:56 +0900 | [diff] [blame] | 443 | ata_port_printk(ap, KERN_ERR, "command timeout\n"); |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 444 | drv_stat = ata_wait_idle(ap); |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 445 | qc->err_mask |= __ac_err_mask(drv_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | break; |
| 447 | |
| 448 | default: |
| 449 | drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
| 450 | |
Tejun Heo | f15a1da | 2006-05-15 20:57:56 +0900 | [diff] [blame] | 451 | ata_port_printk(ap, KERN_ERR, |
| 452 | "unknown timeout, cmd 0x%x stat 0x%x\n", |
| 453 | qc->tf.command, drv_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 455 | qc->err_mask |= ac_err_mask(drv_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | break; |
| 457 | } |
| 458 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 459 | spin_unlock_irqrestore(&host->lock, flags); |
Tejun Heo | f637902 | 2006-02-10 15:10:48 +0900 | [diff] [blame] | 460 | ata_eh_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | DPRINTK("EXIT\n"); |
| 462 | } |
| 463 | |
| 464 | static inline unsigned int pdc_host_intr( struct ata_port *ap, |
| 465 | struct ata_queued_cmd *qc) |
| 466 | { |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 467 | unsigned int handled = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | u32 tmp; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 469 | void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | |
| 471 | tmp = readl(mmio); |
| 472 | if (tmp & PDC_ERR_MASK) { |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 473 | qc->err_mask |= AC_ERR_DEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | pdc_reset_port(ap); |
| 475 | } |
| 476 | |
| 477 | switch (qc->tf.protocol) { |
| 478 | case ATA_PROT_DMA: |
| 479 | case ATA_PROT_NODATA: |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 480 | qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); |
| 481 | ata_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | handled = 1; |
| 483 | break; |
| 484 | |
| 485 | default: |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 486 | ap->stats.idle_irq++; |
| 487 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | } |
| 489 | |
Albert Lee | ee500aa | 2005-09-27 17:34:38 +0800 | [diff] [blame] | 490 | return handled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | static void pdc_irq_clear(struct ata_port *ap) |
| 494 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 495 | struct ata_host *host = ap->host; |
| 496 | void __iomem *mmio = host->mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | |
| 498 | readl(mmio + PDC_INT_SEQMASK); |
| 499 | } |
| 500 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 501 | static irqreturn_t pdc_interrupt (int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 503 | struct ata_host *host = dev_instance; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | struct ata_port *ap; |
| 505 | u32 mask = 0; |
| 506 | unsigned int i, tmp; |
| 507 | unsigned int handled = 0; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 508 | void __iomem *mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | |
| 510 | VPRINTK("ENTER\n"); |
| 511 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 512 | if (!host || !host->mmio_base) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | VPRINTK("QUICK EXIT\n"); |
| 514 | return IRQ_NONE; |
| 515 | } |
| 516 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 517 | mmio_base = host->mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | |
| 519 | /* reading should also clear interrupts */ |
| 520 | mask = readl(mmio_base + PDC_INT_SEQMASK); |
| 521 | |
| 522 | if (mask == 0xffffffff) { |
| 523 | VPRINTK("QUICK EXIT 2\n"); |
| 524 | return IRQ_NONE; |
| 525 | } |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 526 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 527 | spin_lock(&host->lock); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 528 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | mask &= 0xffff; /* only 16 tags possible */ |
| 530 | if (!mask) { |
| 531 | VPRINTK("QUICK EXIT 3\n"); |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 532 | goto done_irq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | } |
| 534 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | writel(mask, mmio_base + PDC_INT_SEQMASK); |
| 536 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 537 | for (i = 0; i < host->n_ports; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | VPRINTK("port %u\n", i); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 539 | ap = host->ports[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | tmp = mask & (1 << (i + 1)); |
Tejun Heo | c138950 | 2005-08-22 14:59:24 +0900 | [diff] [blame] | 541 | if (tmp && ap && |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 542 | !(ap->flags & ATA_FLAG_DISABLED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | struct ata_queued_cmd *qc; |
| 544 | |
| 545 | qc = ata_qc_from_tag(ap, ap->active_tag); |
Albert Lee | e50362e | 2005-09-27 17:39:50 +0800 | [diff] [blame] | 546 | if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | handled += pdc_host_intr(ap, qc); |
| 548 | } |
| 549 | } |
| 550 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | VPRINTK("EXIT\n"); |
| 552 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 553 | done_irq: |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 554 | spin_unlock(&host->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | return IRQ_RETVAL(handled); |
| 556 | } |
| 557 | |
| 558 | static inline void pdc_packet_start(struct ata_queued_cmd *qc) |
| 559 | { |
| 560 | struct ata_port *ap = qc->ap; |
| 561 | struct pdc_port_priv *pp = ap->private_data; |
| 562 | unsigned int port_no = ap->port_no; |
| 563 | u8 seq = (u8) (port_no + 1); |
| 564 | |
| 565 | VPRINTK("ENTER, ap %p\n", ap); |
| 566 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 567 | writel(0x00000001, ap->host->mmio_base + (seq * 4)); |
| 568 | readl(ap->host->mmio_base + (seq * 4)); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | |
| 570 | pp->pkt[2] = seq; |
| 571 | wmb(); /* flush PRD, pkt writes */ |
Al Viro | b181d3b | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 572 | writel(pp->pkt_dma, (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); |
| 573 | readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | } |
| 575 | |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 576 | static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | { |
| 578 | switch (qc->tf.protocol) { |
| 579 | case ATA_PROT_DMA: |
| 580 | case ATA_PROT_NODATA: |
| 581 | pdc_packet_start(qc); |
| 582 | return 0; |
| 583 | |
| 584 | case ATA_PROT_ATAPI_DMA: |
| 585 | BUG(); |
| 586 | break; |
| 587 | |
| 588 | default: |
| 589 | break; |
| 590 | } |
| 591 | |
| 592 | return ata_qc_issue_prot(qc); |
| 593 | } |
| 594 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 595 | 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] | 596 | { |
| 597 | WARN_ON (tf->protocol == ATA_PROT_DMA || |
| 598 | tf->protocol == ATA_PROT_NODATA); |
| 599 | ata_tf_load(ap, tf); |
| 600 | } |
| 601 | |
| 602 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 603 | 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] | 604 | { |
| 605 | WARN_ON (tf->protocol == ATA_PROT_DMA || |
| 606 | tf->protocol == ATA_PROT_NODATA); |
| 607 | ata_exec_command(ap, tf); |
| 608 | } |
| 609 | |
| 610 | |
| 611 | static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base) |
| 612 | { |
| 613 | port->cmd_addr = base; |
| 614 | port->data_addr = base; |
| 615 | port->feature_addr = |
| 616 | port->error_addr = base + 0x4; |
| 617 | port->nsect_addr = base + 0x8; |
| 618 | port->lbal_addr = base + 0xc; |
| 619 | port->lbam_addr = base + 0x10; |
| 620 | port->lbah_addr = base + 0x14; |
| 621 | port->device_addr = base + 0x18; |
| 622 | port->command_addr = |
| 623 | port->status_addr = base + 0x1c; |
| 624 | port->altstatus_addr = |
| 625 | port->ctl_addr = base + 0x38; |
| 626 | } |
| 627 | |
| 628 | |
| 629 | static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe) |
| 630 | { |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 631 | void __iomem *mmio = pe->mmio_base; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 632 | struct pdc_host_priv *hp = pe->private_data; |
| 633 | int hotplug_offset = hp->hotplug_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | u32 tmp; |
| 635 | |
| 636 | /* |
| 637 | * Except for the hotplug stuff, this is voodoo from the |
| 638 | * Promise driver. Label this entire section |
| 639 | * "TODO: figure out why we do this" |
| 640 | */ |
| 641 | |
| 642 | /* change FIFO_SHD to 8 dwords, enable BMR_BURST */ |
| 643 | tmp = readl(mmio + PDC_FLASH_CTL); |
| 644 | tmp |= 0x12000; /* bit 16 (fifo 8 dw) and 13 (bmr burst?) */ |
| 645 | writel(tmp, mmio + PDC_FLASH_CTL); |
| 646 | |
| 647 | /* clear plug/unplug flags for all ports */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 648 | tmp = readl(mmio + hotplug_offset); |
| 649 | writel(tmp | 0xff, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | |
| 651 | /* mask plug/unplug ints */ |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 652 | tmp = readl(mmio + hotplug_offset); |
| 653 | writel(tmp | 0xff0000, mmio + hotplug_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | |
| 655 | /* reduce TBG clock to 133 Mhz. */ |
| 656 | tmp = readl(mmio + PDC_TBG_MODE); |
| 657 | tmp &= ~0x30000; /* clear bit 17, 16*/ |
| 658 | tmp |= 0x10000; /* set bit 17:16 = 0:1 */ |
| 659 | writel(tmp, mmio + PDC_TBG_MODE); |
| 660 | |
| 661 | readl(mmio + PDC_TBG_MODE); /* flush */ |
| 662 | msleep(10); |
| 663 | |
| 664 | /* adjust slew rate control register. */ |
| 665 | tmp = readl(mmio + PDC_SLEW_CTL); |
| 666 | tmp &= 0xFFFFF03F; /* clear bit 11 ~ 6 */ |
| 667 | tmp |= 0x00000900; /* set bit 11-9 = 100b , bit 8-6 = 100 */ |
| 668 | writel(tmp, mmio + PDC_SLEW_CTL); |
| 669 | } |
| 670 | |
| 671 | static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 672 | { |
| 673 | static int printed_version; |
| 674 | struct ata_probe_ent *probe_ent = NULL; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 675 | struct pdc_host_priv *hp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | unsigned long base; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 677 | void __iomem *mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | unsigned int board_idx = (unsigned int) ent->driver_data; |
| 679 | int pci_dev_busy = 0; |
| 680 | int rc; |
| 681 | |
| 682 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 683 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | rc = pci_enable_device(pdev); |
| 686 | if (rc) |
| 687 | return rc; |
| 688 | |
| 689 | rc = pci_request_regions(pdev, DRV_NAME); |
| 690 | if (rc) { |
| 691 | pci_dev_busy = 1; |
| 692 | goto err_out; |
| 693 | } |
| 694 | |
| 695 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 696 | if (rc) |
| 697 | goto err_out_regions; |
| 698 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 699 | if (rc) |
| 700 | goto err_out_regions; |
| 701 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 702 | probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | if (probe_ent == NULL) { |
| 704 | rc = -ENOMEM; |
| 705 | goto err_out_regions; |
| 706 | } |
| 707 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | probe_ent->dev = pci_dev_to_dev(pdev); |
| 709 | INIT_LIST_HEAD(&probe_ent->node); |
| 710 | |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 711 | mmio_base = pci_iomap(pdev, 3, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | if (mmio_base == NULL) { |
| 713 | rc = -ENOMEM; |
| 714 | goto err_out_free_ent; |
| 715 | } |
| 716 | base = (unsigned long) mmio_base; |
| 717 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 718 | hp = kzalloc(sizeof(*hp), GFP_KERNEL); |
| 719 | if (hp == NULL) { |
| 720 | rc = -ENOMEM; |
| 721 | goto err_out_free_ent; |
| 722 | } |
| 723 | |
| 724 | /* Set default hotplug offset */ |
| 725 | hp->hotplug_offset = PDC_SATA_PLUG_CSR; |
| 726 | probe_ent->private_data = hp; |
| 727 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | probe_ent->sht = pdc_port_info[board_idx].sht; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 729 | probe_ent->port_flags = pdc_port_info[board_idx].flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask; |
| 731 | probe_ent->mwdma_mask = pdc_port_info[board_idx].mwdma_mask; |
| 732 | probe_ent->udma_mask = pdc_port_info[board_idx].udma_mask; |
| 733 | probe_ent->port_ops = pdc_port_info[board_idx].port_ops; |
| 734 | |
| 735 | probe_ent->irq = pdev->irq; |
Thomas Gleixner | 1d6f359 | 2006-07-01 19:29:42 -0700 | [diff] [blame] | 736 | probe_ent->irq_flags = IRQF_SHARED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | probe_ent->mmio_base = mmio_base; |
| 738 | |
| 739 | pdc_ata_setup_port(&probe_ent->port[0], base + 0x200); |
| 740 | pdc_ata_setup_port(&probe_ent->port[1], base + 0x280); |
| 741 | |
| 742 | probe_ent->port[0].scr_addr = base + 0x400; |
| 743 | probe_ent->port[1].scr_addr = base + 0x500; |
| 744 | |
| 745 | /* notice 4-port boards */ |
| 746 | switch (board_idx) { |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 747 | case board_40518: |
| 748 | /* Override hotplug offset for SATAII150 */ |
| 749 | hp->hotplug_offset = PDC2_SATA_PLUG_CSR; |
| 750 | /* Fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | case board_20319: |
| 752 | probe_ent->n_ports = 4; |
| 753 | |
| 754 | pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); |
| 755 | pdc_ata_setup_port(&probe_ent->port[3], base + 0x380); |
| 756 | |
| 757 | probe_ent->port[2].scr_addr = base + 0x600; |
| 758 | probe_ent->port[3].scr_addr = base + 0x700; |
| 759 | break; |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 760 | case board_2057x: |
| 761 | /* Override hotplug offset for SATAII150 */ |
| 762 | hp->hotplug_offset = PDC2_SATA_PLUG_CSR; |
| 763 | /* Fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | case board_2037x: |
Jeff Garzik | 6c9e5eb | 2005-11-30 16:42:55 -0500 | [diff] [blame] | 765 | probe_ent->n_ports = 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | break; |
Yusuf Iskenderoglu | 5a46fe8 | 2006-01-17 08:06:21 -0500 | [diff] [blame] | 767 | case board_20771: |
| 768 | probe_ent->n_ports = 2; |
| 769 | break; |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 770 | case board_20619: |
| 771 | probe_ent->n_ports = 4; |
| 772 | |
| 773 | pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); |
| 774 | pdc_ata_setup_port(&probe_ent->port[3], base + 0x380); |
| 775 | |
| 776 | probe_ent->port[2].scr_addr = base + 0x600; |
| 777 | probe_ent->port[3].scr_addr = base + 0x700; |
Jeff Garzik | 6c9e5eb | 2005-11-30 16:42:55 -0500 | [diff] [blame] | 778 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | default: |
| 780 | BUG(); |
| 781 | break; |
| 782 | } |
| 783 | |
| 784 | pci_set_master(pdev); |
| 785 | |
| 786 | /* initialize adapter */ |
| 787 | pdc_host_init(board_idx, probe_ent); |
| 788 | |
Luke Kosewski | 6340f01 | 2006-01-28 12:39:29 -0500 | [diff] [blame] | 789 | /* FIXME: Need any other frees than hp? */ |
| 790 | if (!ata_device_add(probe_ent)) |
| 791 | kfree(hp); |
| 792 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | kfree(probe_ent); |
| 794 | |
| 795 | return 0; |
| 796 | |
| 797 | err_out_free_ent: |
| 798 | kfree(probe_ent); |
| 799 | err_out_regions: |
| 800 | pci_release_regions(pdev); |
| 801 | err_out: |
| 802 | if (!pci_dev_busy) |
| 803 | pci_disable_device(pdev); |
| 804 | return rc; |
| 805 | } |
| 806 | |
| 807 | |
| 808 | static int __init pdc_ata_init(void) |
| 809 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 810 | return pci_register_driver(&pdc_ata_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | } |
| 812 | |
| 813 | |
| 814 | static void __exit pdc_ata_exit(void) |
| 815 | { |
| 816 | pci_unregister_driver(&pdc_ata_pci_driver); |
| 817 | } |
| 818 | |
| 819 | |
| 820 | MODULE_AUTHOR("Jeff Garzik"); |
Tobias Lorenz | f497ba7 | 2005-05-12 15:51:01 -0400 | [diff] [blame] | 821 | MODULE_DESCRIPTION("Promise ATA TX2/TX4/TX4000 low-level driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | MODULE_LICENSE("GPL"); |
| 823 | MODULE_DEVICE_TABLE(pci, pdc_ata_pci_tbl); |
| 824 | MODULE_VERSION(DRV_VERSION); |
| 825 | |
| 826 | module_init(pdc_ata_init); |
| 827 | module_exit(pdc_ata_exit); |