Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 2 | * sata_via.c - VIA Serial ATA controllers |
| 3 | * |
| 4 | * Maintained by: Jeff Garzik <jgarzik@pobox.com> |
| 5 | * Please ALWAYS copy linux-ide@vger.kernel.org |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 6 | * on emails. |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 7 | * |
| 8 | * Copyright 2003-2004 Red Hat, Inc. All rights reserved. |
| 9 | * Copyright 2003-2004 Jeff Garzik |
| 10 | * |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation; either version 2, or (at your option) |
| 15 | * any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; see the file COPYING. If not, write to |
| 24 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 25 | * |
| 26 | * |
| 27 | * libata documentation is available via 'make {ps|pdf}docs', |
| 28 | * as Documentation/DocBook/libata.* |
| 29 | * |
| 30 | * Hardware documentation available under NDA. |
| 31 | * |
| 32 | * |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 33 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | */ |
| 35 | |
| 36 | #include <linux/kernel.h> |
| 37 | #include <linux/module.h> |
| 38 | #include <linux/pci.h> |
| 39 | #include <linux/init.h> |
| 40 | #include <linux/blkdev.h> |
| 41 | #include <linux/delay.h> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 42 | #include <linux/device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #include <scsi/scsi_host.h> |
| 44 | #include <linux/libata.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
| 46 | #define DRV_NAME "sata_via" |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 47 | #define DRV_VERSION "2.4" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 49 | /* |
| 50 | * vt8251 is different from other sata controllers of VIA. It has two |
| 51 | * channels, each channel has both Master and Slave slot. |
| 52 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | enum board_ids_enum { |
| 54 | vt6420, |
| 55 | vt6421, |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 56 | vt8251, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | }; |
| 58 | |
| 59 | enum { |
| 60 | SATA_CHAN_ENAB = 0x40, /* SATA channel enable */ |
| 61 | SATA_INT_GATE = 0x41, /* SATA interrupt gating */ |
| 62 | SATA_NATIVE_MODE = 0x42, /* Native mode enable */ |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 63 | PATA_UDMA_TIMING = 0xB3, /* PATA timing for DMA/ cable detect */ |
| 64 | PATA_PIO_TIMING = 0xAB, /* PATA timing register */ |
Jeff Garzik | a84471f | 2007-02-26 05:51:33 -0500 | [diff] [blame] | 65 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | PORT0 = (1 << 1), |
| 67 | PORT1 = (1 << 0), |
| 68 | ALL_PORTS = PORT0 | PORT1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
| 70 | NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4), |
| 71 | |
| 72 | SATA_EXT_PHY = (1 << 6), /* 0==use PATA, 1==ext phy */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | }; |
| 74 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 75 | static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 76 | static int svia_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); |
| 77 | static int svia_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 78 | static int vt8251_scr_read(struct ata_link *link, unsigned int scr, u32 *val); |
| 79 | static int vt8251_scr_write(struct ata_link *link, unsigned int scr, u32 val); |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame] | 80 | static void svia_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 81 | static void svia_noop_freeze(struct ata_port *ap); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 82 | static int vt6420_prereset(struct ata_link *link, unsigned long deadline); |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 83 | static int vt6421_pata_cable_detect(struct ata_port *ap); |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 84 | static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev); |
| 85 | static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 87 | static const struct pci_device_id svia_pci_tbl[] = { |
Luca Pedrielli | 96bc103 | 2007-01-16 12:55:04 +0900 | [diff] [blame] | 88 | { PCI_VDEVICE(VIA, 0x5337), vt6420 }, |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 89 | { PCI_VDEVICE(VIA, 0x0591), vt6420 }, /* 2 sata chnls (Master) */ |
| 90 | { PCI_VDEVICE(VIA, 0x3149), vt6420 }, /* 2 sata chnls (Master) */ |
| 91 | { PCI_VDEVICE(VIA, 0x3249), vt6421 }, /* 2 sata chnls, 1 pata chnl */ |
Jeff Garzik | 52df0ee | 2007-05-25 05:02:06 -0400 | [diff] [blame] | 92 | { PCI_VDEVICE(VIA, 0x5372), vt6420 }, |
| 93 | { PCI_VDEVICE(VIA, 0x7372), vt6420 }, |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 94 | { PCI_VDEVICE(VIA, 0x5287), vt8251 }, /* 2 sata chnls (Master/Slave) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
| 96 | { } /* terminate list */ |
| 97 | }; |
| 98 | |
| 99 | static struct pci_driver svia_pci_driver = { |
| 100 | .name = DRV_NAME, |
| 101 | .id_table = svia_pci_tbl, |
| 102 | .probe = svia_init_one, |
Tejun Heo | e1e143c | 2007-05-04 15:30:34 +0200 | [diff] [blame] | 103 | #ifdef CONFIG_PM |
| 104 | .suspend = ata_pci_device_suspend, |
| 105 | .resume = ata_pci_device_resume, |
| 106 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | .remove = ata_pci_remove_one, |
| 108 | }; |
| 109 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 110 | static struct scsi_host_template svia_sht = { |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 111 | ATA_BMDMA_SHT(DRV_NAME), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | }; |
| 113 | |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame] | 114 | static struct ata_port_operations svia_base_ops = { |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 115 | .inherits = &ata_bmdma_port_ops, |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame] | 116 | .sff_tf_load = svia_tf_load, |
| 117 | }; |
| 118 | |
| 119 | static struct ata_port_operations vt6420_sata_ops = { |
| 120 | .inherits = &svia_base_ops, |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 121 | .freeze = svia_noop_freeze, |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 122 | .prereset = vt6420_prereset, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 123 | }; |
| 124 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 125 | static struct ata_port_operations vt6421_pata_ops = { |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame] | 126 | .inherits = &svia_base_ops, |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 127 | .cable_detect = vt6421_pata_cable_detect, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 128 | .set_piomode = vt6421_set_pio_mode, |
| 129 | .set_dmamode = vt6421_set_dma_mode, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 130 | }; |
| 131 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 132 | static struct ata_port_operations vt6421_sata_ops = { |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame] | 133 | .inherits = &svia_base_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | .scr_read = svia_scr_read, |
| 135 | .scr_write = svia_scr_write, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | }; |
| 137 | |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 138 | static struct ata_port_operations vt8251_ops = { |
| 139 | .inherits = &svia_base_ops, |
| 140 | .hardreset = sata_std_hardreset, |
| 141 | .scr_read = vt8251_scr_read, |
| 142 | .scr_write = vt8251_scr_write, |
| 143 | }; |
| 144 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 145 | static const struct ata_port_info vt6420_port_info = { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 146 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | .pio_mask = 0x1f, |
| 148 | .mwdma_mask = 0x07, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 149 | .udma_mask = ATA_UDMA6, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 150 | .port_ops = &vt6420_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | }; |
| 152 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 153 | static struct ata_port_info vt6421_sport_info = { |
| 154 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
| 155 | .pio_mask = 0x1f, |
| 156 | .mwdma_mask = 0x07, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 157 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 158 | .port_ops = &vt6421_sata_ops, |
| 159 | }; |
| 160 | |
| 161 | static struct ata_port_info vt6421_pport_info = { |
| 162 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY, |
| 163 | .pio_mask = 0x1f, |
| 164 | .mwdma_mask = 0, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 165 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 166 | .port_ops = &vt6421_pata_ops, |
| 167 | }; |
| 168 | |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 169 | static struct ata_port_info vt8251_port_info = { |
| 170 | .flags = ATA_FLAG_SATA | ATA_FLAG_SLAVE_POSS | |
| 171 | ATA_FLAG_NO_LEGACY, |
| 172 | .pio_mask = 0x1f, |
| 173 | .mwdma_mask = 0x07, |
| 174 | .udma_mask = ATA_UDMA6, |
| 175 | .port_ops = &vt8251_ops, |
| 176 | }; |
| 177 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | MODULE_AUTHOR("Jeff Garzik"); |
| 179 | MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers"); |
| 180 | MODULE_LICENSE("GPL"); |
| 181 | MODULE_DEVICE_TABLE(pci, svia_pci_tbl); |
| 182 | MODULE_VERSION(DRV_VERSION); |
| 183 | |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 184 | static int svia_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | { |
| 186 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 187 | return -EINVAL; |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 188 | *val = ioread32(link->ap->ioaddr.scr_addr + (4 * sc_reg)); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 189 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | } |
| 191 | |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 192 | static int svia_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | { |
| 194 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 195 | return -EINVAL; |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 196 | iowrite32(val, link->ap->ioaddr.scr_addr + (4 * sc_reg)); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 197 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | } |
| 199 | |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 200 | static int vt8251_scr_read(struct ata_link *link, unsigned int scr, u32 *val) |
| 201 | { |
| 202 | static const u8 ipm_tbl[] = { 1, 2, 6, 0 }; |
| 203 | struct pci_dev *pdev = to_pci_dev(link->ap->host->dev); |
| 204 | int slot = 2 * link->ap->port_no + link->pmp; |
| 205 | u32 v = 0; |
| 206 | u8 raw; |
| 207 | |
| 208 | switch (scr) { |
| 209 | case SCR_STATUS: |
| 210 | pci_read_config_byte(pdev, 0xA0 + slot, &raw); |
| 211 | |
| 212 | /* read the DET field, bit0 and 1 of the config byte */ |
| 213 | v |= raw & 0x03; |
| 214 | |
| 215 | /* read the SPD field, bit4 of the configure byte */ |
| 216 | if (raw & (1 << 4)) |
| 217 | v |= 0x02 << 4; |
| 218 | else |
| 219 | v |= 0x01 << 4; |
| 220 | |
| 221 | /* read the IPM field, bit2 and 3 of the config byte */ |
| 222 | v |= ipm_tbl[(raw >> 2) & 0x3]; |
| 223 | break; |
| 224 | |
| 225 | case SCR_ERROR: |
| 226 | /* devices other than 5287 uses 0xA8 as base */ |
| 227 | WARN_ON(pdev->device != 0x5287); |
| 228 | pci_read_config_dword(pdev, 0xB0 + slot * 4, &v); |
| 229 | break; |
| 230 | |
| 231 | case SCR_CONTROL: |
| 232 | pci_read_config_byte(pdev, 0xA4 + slot, &raw); |
| 233 | |
| 234 | /* read the DET field, bit0 and bit1 */ |
| 235 | v |= ((raw & 0x02) << 1) | (raw & 0x01); |
| 236 | |
| 237 | /* read the IPM field, bit2 and bit3 */ |
| 238 | v |= ((raw >> 2) & 0x03) << 8; |
| 239 | break; |
| 240 | |
| 241 | default: |
| 242 | return -EINVAL; |
| 243 | } |
| 244 | |
| 245 | *val = v; |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | static int vt8251_scr_write(struct ata_link *link, unsigned int scr, u32 val) |
| 250 | { |
| 251 | struct pci_dev *pdev = to_pci_dev(link->ap->host->dev); |
| 252 | int slot = 2 * link->ap->port_no + link->pmp; |
| 253 | u32 v = 0; |
| 254 | |
| 255 | switch (scr) { |
| 256 | case SCR_ERROR: |
| 257 | /* devices other than 5287 uses 0xA8 as base */ |
| 258 | WARN_ON(pdev->device != 0x5287); |
| 259 | pci_write_config_dword(pdev, 0xB0 + slot * 4, val); |
| 260 | return 0; |
| 261 | |
| 262 | case SCR_CONTROL: |
| 263 | /* set the DET field */ |
| 264 | v |= ((val & 0x4) >> 1) | (val & 0x1); |
| 265 | |
| 266 | /* set the IPM field */ |
| 267 | v |= ((val >> 8) & 0x3) << 2; |
| 268 | |
| 269 | pci_write_config_byte(pdev, 0xA4 + slot, v); |
| 270 | return 0; |
| 271 | |
| 272 | default: |
| 273 | return -EINVAL; |
| 274 | } |
| 275 | } |
| 276 | |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame] | 277 | /** |
| 278 | * svia_tf_load - send taskfile registers to host controller |
| 279 | * @ap: Port to which output is sent |
| 280 | * @tf: ATA taskfile register set |
| 281 | * |
| 282 | * Outputs ATA taskfile to standard ATA host controller. |
| 283 | * |
| 284 | * This is to fix the internal bug of via chipsets, which will |
| 285 | * reset the device register after changing the IEN bit on ctl |
| 286 | * register. |
| 287 | */ |
| 288 | static void svia_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) |
| 289 | { |
| 290 | struct ata_taskfile ttf; |
| 291 | |
| 292 | if (tf->ctl != ap->last_ctl) { |
| 293 | ttf = *tf; |
| 294 | ttf.flags |= ATA_TFLAG_DEVICE; |
| 295 | tf = &ttf; |
| 296 | } |
| 297 | ata_sff_tf_load(ap, tf); |
| 298 | } |
| 299 | |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 300 | static void svia_noop_freeze(struct ata_port *ap) |
| 301 | { |
| 302 | /* Some VIA controllers choke if ATA_NIEN is manipulated in |
| 303 | * certain way. Leave it alone and just clear pending IRQ. |
| 304 | */ |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 305 | ap->ops->sff_check_status(ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 306 | ata_sff_irq_clear(ap); |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 307 | } |
| 308 | |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 309 | /** |
| 310 | * vt6420_prereset - prereset for vt6420 |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 311 | * @link: target ATA link |
Tejun Heo | d4b2bab | 2007-02-02 16:50:52 +0900 | [diff] [blame] | 312 | * @deadline: deadline jiffies for the operation |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 313 | * |
| 314 | * SCR registers on vt6420 are pieces of shit and may hang the |
| 315 | * whole machine completely if accessed with the wrong timing. |
| 316 | * To avoid such catastrophe, vt6420 doesn't provide generic SCR |
| 317 | * access operations, but uses SStatus and SControl only during |
| 318 | * boot probing in controlled way. |
| 319 | * |
| 320 | * As the old (pre EH update) probing code is proven to work, we |
| 321 | * strictly follow the access pattern. |
| 322 | * |
| 323 | * LOCKING: |
| 324 | * Kernel thread context (may sleep) |
| 325 | * |
| 326 | * RETURNS: |
| 327 | * 0 on success, -errno otherwise. |
| 328 | */ |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 329 | static int vt6420_prereset(struct ata_link *link, unsigned long deadline) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 330 | { |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 331 | struct ata_port *ap = link->ap; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 332 | struct ata_eh_context *ehc = &ap->link.eh_context; |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 333 | unsigned long timeout = jiffies + (HZ * 5); |
| 334 | u32 sstatus, scontrol; |
| 335 | int online; |
| 336 | |
| 337 | /* don't do any SCR stuff if we're not loading */ |
Jeff Garzik | 68ff6e8 | 2006-11-08 07:46:02 -0500 | [diff] [blame] | 338 | if (!(ap->pflags & ATA_PFLAG_LOADING)) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 339 | goto skip_scr; |
| 340 | |
Jeff Garzik | a09060f | 2007-05-28 08:17:06 -0400 | [diff] [blame] | 341 | /* Resume phy. This is the old SATA resume sequence */ |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 342 | svia_scr_write(link, SCR_CONTROL, 0x300); |
| 343 | svia_scr_read(link, SCR_CONTROL, &scontrol); /* flush */ |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 344 | |
| 345 | /* wait for phy to become ready, if necessary */ |
| 346 | do { |
| 347 | msleep(200); |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 348 | svia_scr_read(link, SCR_STATUS, &sstatus); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 349 | if ((sstatus & 0xf) != 1) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 350 | break; |
| 351 | } while (time_before(jiffies, timeout)); |
| 352 | |
| 353 | /* open code sata_print_link_status() */ |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 354 | svia_scr_read(link, SCR_STATUS, &sstatus); |
| 355 | svia_scr_read(link, SCR_CONTROL, &scontrol); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 356 | |
| 357 | online = (sstatus & 0xf) == 0x3; |
| 358 | |
| 359 | ata_port_printk(ap, KERN_INFO, |
| 360 | "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n", |
| 361 | online ? "up" : "down", sstatus, scontrol); |
| 362 | |
| 363 | /* SStatus is read one more time */ |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 364 | svia_scr_read(link, SCR_STATUS, &sstatus); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 365 | |
| 366 | if (!online) { |
| 367 | /* tell EH to bail */ |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 368 | ehc->i.action &= ~ATA_EH_RESET; |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 369 | return 0; |
| 370 | } |
| 371 | |
| 372 | skip_scr: |
| 373 | /* wait for !BSY */ |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 374 | ata_sff_wait_ready(link, deadline); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 375 | |
| 376 | return 0; |
| 377 | } |
| 378 | |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 379 | static int vt6421_pata_cable_detect(struct ata_port *ap) |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 380 | { |
| 381 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 382 | u8 tmp; |
| 383 | |
| 384 | pci_read_config_byte(pdev, PATA_UDMA_TIMING, &tmp); |
| 385 | if (tmp & 0x10) |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 386 | return ATA_CBL_PATA40; |
| 387 | return ATA_CBL_PATA80; |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 388 | } |
| 389 | |
| 390 | static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev) |
| 391 | { |
| 392 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 393 | static const u8 pio_bits[] = { 0xA8, 0x65, 0x65, 0x31, 0x20 }; |
| 394 | pci_write_config_byte(pdev, PATA_PIO_TIMING, pio_bits[adev->pio_mode - XFER_PIO_0]); |
| 395 | } |
| 396 | |
| 397 | static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev) |
| 398 | { |
| 399 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 400 | static const u8 udma_bits[] = { 0xEE, 0xE8, 0xE6, 0xE4, 0xE2, 0xE1, 0xE0, 0xE0 }; |
Ondrej Zary | b4154d4 | 2007-09-01 00:55:21 +0200 | [diff] [blame] | 401 | pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->dma_mode - XFER_UDMA_0]); |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 402 | } |
| 403 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | static const unsigned int svia_bar_sizes[] = { |
| 405 | 8, 4, 8, 4, 16, 256 |
| 406 | }; |
| 407 | |
| 408 | static const unsigned int vt6421_bar_sizes[] = { |
| 409 | 16, 16, 16, 16, 32, 128 |
| 410 | }; |
| 411 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 412 | static void __iomem *svia_scr_addr(void __iomem *addr, unsigned int port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | { |
| 414 | return addr + (port * 128); |
| 415 | } |
| 416 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 417 | static void __iomem *vt6421_scr_addr(void __iomem *addr, unsigned int port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | { |
| 419 | return addr + (port * 64); |
| 420 | } |
| 421 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 422 | static void vt6421_init_addrs(struct ata_port *ap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 424 | void __iomem * const * iomap = ap->host->iomap; |
| 425 | void __iomem *reg_addr = iomap[ap->port_no]; |
| 426 | void __iomem *bmdma_addr = iomap[4] + (ap->port_no * 8); |
| 427 | struct ata_ioports *ioaddr = &ap->ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 429 | ioaddr->cmd_addr = reg_addr; |
| 430 | ioaddr->altstatus_addr = |
| 431 | ioaddr->ctl_addr = (void __iomem *) |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 432 | ((unsigned long)(reg_addr + 8) | ATA_PCI_CTL_OFS); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 433 | ioaddr->bmdma_addr = bmdma_addr; |
| 434 | ioaddr->scr_addr = vt6421_scr_addr(iomap[5], ap->port_no); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 436 | ata_sff_std_ports(ioaddr); |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 437 | |
| 438 | ata_port_pbar_desc(ap, ap->port_no, -1, "port"); |
| 439 | ata_port_pbar_desc(ap, 4, ap->port_no * 8, "bmdma"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | } |
| 441 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 442 | static int vt6420_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 444 | const struct ata_port_info *ppi[] = { &vt6420_port_info, NULL }; |
| 445 | struct ata_host *host; |
| 446 | int rc; |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 447 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 448 | rc = ata_pci_sff_prepare_host(pdev, ppi, &host); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 449 | if (rc) |
| 450 | return rc; |
| 451 | *r_host = host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 453 | rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME); |
| 454 | if (rc) { |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 455 | dev_printk(KERN_ERR, &pdev->dev, "failed to iomap PCI BAR 5\n"); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 456 | return rc; |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 457 | } |
| 458 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 459 | host->ports[0]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 0); |
| 460 | host->ports[1]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 462 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | } |
| 464 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 465 | static int vt6421_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 467 | const struct ata_port_info *ppi[] = |
| 468 | { &vt6421_sport_info, &vt6421_sport_info, &vt6421_pport_info }; |
| 469 | struct ata_host *host; |
| 470 | int i, rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 472 | *r_host = host = ata_host_alloc_pinfo(&pdev->dev, ppi, ARRAY_SIZE(ppi)); |
| 473 | if (!host) { |
| 474 | dev_printk(KERN_ERR, &pdev->dev, "failed to allocate host\n"); |
| 475 | return -ENOMEM; |
| 476 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | |
Tejun Heo | 8fd7d1b | 2007-05-17 13:37:12 +0200 | [diff] [blame] | 478 | rc = pcim_iomap_regions(pdev, 0x3f, DRV_NAME); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 479 | if (rc) { |
| 480 | dev_printk(KERN_ERR, &pdev->dev, "failed to request/iomap " |
| 481 | "PCI BARs (errno=%d)\n", rc); |
| 482 | return rc; |
| 483 | } |
| 484 | host->iomap = pcim_iomap_table(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 486 | for (i = 0; i < host->n_ports; i++) |
| 487 | vt6421_init_addrs(host->ports[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 489 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 490 | if (rc) |
| 491 | return rc; |
| 492 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 493 | if (rc) |
| 494 | return rc; |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 495 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 496 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | } |
| 498 | |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 499 | static int vt8251_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) |
| 500 | { |
| 501 | const struct ata_port_info *ppi[] = { &vt8251_port_info, NULL }; |
| 502 | struct ata_host *host; |
| 503 | int i, rc; |
| 504 | |
| 505 | rc = ata_pci_sff_prepare_host(pdev, ppi, &host); |
| 506 | if (rc) |
| 507 | return rc; |
| 508 | *r_host = host; |
| 509 | |
| 510 | rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME); |
| 511 | if (rc) { |
| 512 | dev_printk(KERN_ERR, &pdev->dev, "failed to iomap PCI BAR 5\n"); |
| 513 | return rc; |
| 514 | } |
| 515 | |
| 516 | /* 8251 hosts four sata ports as M/S of the two channels */ |
| 517 | for (i = 0; i < host->n_ports; i++) |
| 518 | ata_slave_link_init(host->ports[i]); |
| 519 | |
| 520 | return 0; |
| 521 | } |
| 522 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | static void svia_configure(struct pci_dev *pdev) |
| 524 | { |
| 525 | u8 tmp8; |
| 526 | |
| 527 | pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, &tmp8); |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 528 | dev_printk(KERN_INFO, &pdev->dev, "routed to hard irq line %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f); |
| 530 | |
| 531 | /* make sure SATA channels are enabled */ |
| 532 | pci_read_config_byte(pdev, SATA_CHAN_ENAB, &tmp8); |
| 533 | if ((tmp8 & ALL_PORTS) != ALL_PORTS) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 534 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 535 | "enabling SATA channels (0x%x)\n", |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 536 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | tmp8 |= ALL_PORTS; |
| 538 | pci_write_config_byte(pdev, SATA_CHAN_ENAB, tmp8); |
| 539 | } |
| 540 | |
| 541 | /* make sure interrupts for each channel sent to us */ |
| 542 | pci_read_config_byte(pdev, SATA_INT_GATE, &tmp8); |
| 543 | if ((tmp8 & ALL_PORTS) != ALL_PORTS) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 544 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 545 | "enabling SATA channel interrupts (0x%x)\n", |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 546 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | tmp8 |= ALL_PORTS; |
| 548 | pci_write_config_byte(pdev, SATA_INT_GATE, tmp8); |
| 549 | } |
| 550 | |
| 551 | /* make sure native mode is enabled */ |
| 552 | pci_read_config_byte(pdev, SATA_NATIVE_MODE, &tmp8); |
| 553 | if ((tmp8 & NATIVE_MODE_ALL) != NATIVE_MODE_ALL) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 554 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 555 | "enabling SATA channel native mode (0x%x)\n", |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 556 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | tmp8 |= NATIVE_MODE_ALL; |
| 558 | pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8); |
| 559 | } |
| 560 | } |
| 561 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 562 | static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | { |
| 564 | static int printed_version; |
| 565 | unsigned int i; |
| 566 | int rc; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 567 | struct ata_host *host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | int board_id = (int) ent->driver_data; |
Al Viro | b4482a4 | 2007-10-14 19:35:40 +0100 | [diff] [blame] | 569 | const unsigned *bar_sizes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | |
| 571 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 572 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 574 | rc = pcim_enable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | if (rc) |
| 576 | return rc; |
| 577 | |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 578 | if (board_id == vt6421) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | bar_sizes = &vt6421_bar_sizes[0]; |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 580 | else |
| 581 | bar_sizes = &svia_bar_sizes[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | |
| 583 | for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++) |
| 584 | if ((pci_resource_start(pdev, i) == 0) || |
| 585 | (pci_resource_len(pdev, i) < bar_sizes[i])) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 586 | dev_printk(KERN_ERR, &pdev->dev, |
Greg Kroah-Hartman | e29419f | 2006-06-12 15:20:16 -0700 | [diff] [blame] | 587 | "invalid PCI BAR %u (sz 0x%llx, val 0x%llx)\n", |
| 588 | i, |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 589 | (unsigned long long)pci_resource_start(pdev, i), |
| 590 | (unsigned long long)pci_resource_len(pdev, i)); |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 591 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | } |
| 593 | |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 594 | switch (board_id) { |
| 595 | case vt6420: |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 596 | rc = vt6420_prepare_host(pdev, &host); |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 597 | break; |
| 598 | case vt6421: |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 599 | rc = vt6421_prepare_host(pdev, &host); |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 600 | break; |
| 601 | case vt8251: |
| 602 | rc = vt8251_prepare_host(pdev, &host); |
| 603 | break; |
| 604 | default: |
Marcin Slusarz | 554d491 | 2008-11-02 22:18:52 +0100 | [diff] [blame] | 605 | rc = -EINVAL; |
Tejun Heo | b9d5b89 | 2008-10-22 00:46:36 +0900 | [diff] [blame] | 606 | } |
Marcin Slusarz | 554d491 | 2008-11-02 22:18:52 +0100 | [diff] [blame] | 607 | if (rc) |
| 608 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | |
| 610 | svia_configure(pdev); |
| 611 | |
| 612 | pci_set_master(pdev); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 613 | return ata_host_activate(host, pdev->irq, ata_sff_interrupt, |
| 614 | IRQF_SHARED, &svia_sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | } |
| 616 | |
| 617 | static int __init svia_init(void) |
| 618 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 619 | return pci_register_driver(&svia_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | } |
| 621 | |
| 622 | static void __exit svia_exit(void) |
| 623 | { |
| 624 | pci_unregister_driver(&svia_pci_driver); |
| 625 | } |
| 626 | |
| 627 | module_init(svia_init); |
| 628 | module_exit(svia_exit); |