Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * sata_sis.c - Silicon Integrated Systems SATA |
| 3 | * |
| 4 | * Maintained by: Uwe Koziolek |
| 5 | * Please ALWAYS copy linux-ide@vger.kernel.org |
| 6 | * on emails. |
| 7 | * |
| 8 | * Copyright 2004 Uwe Koziolek |
| 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 documentation available under NDA. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | * |
| 31 | */ |
| 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <linux/kernel.h> |
| 34 | #include <linux/module.h> |
| 35 | #include <linux/pci.h> |
| 36 | #include <linux/init.h> |
| 37 | #include <linux/blkdev.h> |
| 38 | #include <linux/delay.h> |
| 39 | #include <linux/interrupt.h> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 40 | #include <linux/device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include <scsi/scsi_host.h> |
| 42 | #include <linux/libata.h> |
| 43 | |
| 44 | #define DRV_NAME "sata_sis" |
Jeff Garzik | af64371 | 2006-04-02 20:41:36 -0400 | [diff] [blame] | 45 | #define DRV_VERSION "0.6" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | |
| 47 | enum { |
| 48 | sis_180 = 0, |
| 49 | SIS_SCR_PCI_BAR = 5, |
| 50 | |
| 51 | /* PCI configuration registers */ |
| 52 | SIS_GENCTL = 0x54, /* IDE General Control register */ |
| 53 | SIS_SCR_BASE = 0xc0, /* sata0 phy SCR registers */ |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 54 | SIS180_SATA1_OFS = 0x10, /* offset from sata0->sata1 phy regs */ |
| 55 | SIS182_SATA1_OFS = 0x20, /* offset from sata0->sata1 phy regs */ |
| 56 | SIS_PMR = 0x90, /* port mapping register */ |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 57 | SIS_PMR_COMBINED = 0x30, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
| 59 | /* random bits */ |
| 60 | SIS_FLAG_CFGSCR = (1 << 30), /* host flag: SCRs via PCI cfg */ |
| 61 | |
| 62 | GENCTL_IOMAPPED_SCR = (1 << 26), /* if set, SCRs are in IO space */ |
| 63 | }; |
| 64 | |
| 65 | static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); |
| 66 | static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg); |
| 67 | static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); |
| 68 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 69 | static const struct pci_device_id sis_pci_tbl[] = { |
Jeff Garzik | 54bb3a94 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 70 | { PCI_VDEVICE(SI, 0x180), sis_180 }, |
| 71 | { PCI_VDEVICE(SI, 0x181), sis_180 }, |
| 72 | { PCI_VDEVICE(SI, 0x182), sis_180 }, |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 73 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | { } /* terminate list */ |
| 75 | }; |
| 76 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | static struct pci_driver sis_pci_driver = { |
| 78 | .name = DRV_NAME, |
| 79 | .id_table = sis_pci_tbl, |
| 80 | .probe = sis_init_one, |
| 81 | .remove = ata_pci_remove_one, |
| 82 | }; |
| 83 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 84 | static struct scsi_host_template sis_sht = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | .module = THIS_MODULE, |
| 86 | .name = DRV_NAME, |
| 87 | .ioctl = ata_scsi_ioctl, |
| 88 | .queuecommand = ata_scsi_queuecmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | .can_queue = ATA_DEF_QUEUE, |
| 90 | .this_id = ATA_SHT_THIS_ID, |
| 91 | .sg_tablesize = ATA_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 93 | .emulated = ATA_SHT_EMULATED, |
| 94 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 95 | .proc_name = DRV_NAME, |
| 96 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 97 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | ccf68c3 | 2006-05-31 18:28:09 +0900 | [diff] [blame] | 98 | .slave_destroy = ata_scsi_slave_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | .bios_param = ata_std_bios_param, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | }; |
| 101 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 102 | static const struct ata_port_operations sis_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | .port_disable = ata_port_disable, |
| 104 | .tf_load = ata_tf_load, |
| 105 | .tf_read = ata_tf_read, |
| 106 | .check_status = ata_check_status, |
| 107 | .exec_command = ata_exec_command, |
| 108 | .dev_select = ata_std_dev_select, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | .bmdma_setup = ata_bmdma_setup, |
| 110 | .bmdma_start = ata_bmdma_start, |
| 111 | .bmdma_stop = ata_bmdma_stop, |
| 112 | .bmdma_status = ata_bmdma_status, |
| 113 | .qc_prep = ata_qc_prep, |
| 114 | .qc_issue = ata_qc_issue_prot, |
Alan Cox | a6b2c5d | 2006-05-22 16:59:59 +0100 | [diff] [blame] | 115 | .data_xfer = ata_pio_data_xfer, |
Tejun Heo | d7a80da | 2006-06-16 15:00:18 +0900 | [diff] [blame] | 116 | .freeze = ata_bmdma_freeze, |
| 117 | .thaw = ata_bmdma_thaw, |
| 118 | .error_handler = ata_bmdma_error_handler, |
| 119 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | .irq_handler = ata_interrupt, |
| 121 | .irq_clear = ata_bmdma_irq_clear, |
| 122 | .scr_read = sis_scr_read, |
| 123 | .scr_write = sis_scr_write, |
| 124 | .port_start = ata_port_start, |
| 125 | .port_stop = ata_port_stop, |
Jeff Garzik | aa8f0dc | 2005-05-26 21:54:27 -0400 | [diff] [blame] | 126 | .host_stop = ata_host_stop, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | }; |
| 128 | |
| 129 | static struct ata_port_info sis_port_info = { |
| 130 | .sht = &sis_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 131 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | .pio_mask = 0x1f, |
| 133 | .mwdma_mask = 0x7, |
| 134 | .udma_mask = 0x7f, |
| 135 | .port_ops = &sis_ops, |
| 136 | }; |
| 137 | |
| 138 | |
| 139 | MODULE_AUTHOR("Uwe Koziolek"); |
| 140 | MODULE_DESCRIPTION("low-level driver for Silicon Integratad Systems SATA controller"); |
| 141 | MODULE_LICENSE("GPL"); |
| 142 | MODULE_DEVICE_TABLE(pci, sis_pci_tbl); |
| 143 | MODULE_VERSION(DRV_VERSION); |
| 144 | |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 145 | static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg, int device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | { |
| 147 | unsigned int addr = SIS_SCR_BASE + (4 * sc_reg); |
| 148 | |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 149 | if (port_no) { |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 150 | if (device == 0x182) |
| 151 | addr += SIS182_SATA1_OFS; |
| 152 | else |
| 153 | addr += SIS180_SATA1_OFS; |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 154 | } |
| 155 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | return addr; |
| 157 | } |
| 158 | |
| 159 | static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg) |
| 160 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 161 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 162 | unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg, pdev->device); |
Uwe Koziolek | 668e4bc | 2005-09-11 17:03:35 +0200 | [diff] [blame] | 163 | u32 val, val2 = 0; |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 164 | u8 pmr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | |
| 166 | if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */ |
| 167 | return 0xffffffff; |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 168 | |
| 169 | pci_read_config_byte(pdev, SIS_PMR, &pmr); |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 170 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | pci_read_config_dword(pdev, cfg_addr, &val); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 172 | |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 173 | if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 174 | pci_read_config_dword(pdev, cfg_addr+0x10, &val2); |
| 175 | |
| 176 | return val|val2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | } |
| 178 | |
| 179 | static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val) |
| 180 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 181 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 182 | unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, scr, pdev->device); |
| 183 | u8 pmr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | |
| 185 | if (scr == SCR_ERROR) /* doesn't exist in PCI cfg space */ |
| 186 | return; |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 187 | |
| 188 | pci_read_config_byte(pdev, SIS_PMR, &pmr); |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 189 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | pci_write_config_dword(pdev, cfg_addr, val); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 191 | |
| 192 | if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) |
| 193 | pci_write_config_dword(pdev, cfg_addr+0x10, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg) |
| 197 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 198 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 199 | u32 val, val2 = 0; |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 200 | u8 pmr; |
| 201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | if (sc_reg > SCR_CONTROL) |
| 203 | return 0xffffffffU; |
| 204 | |
| 205 | if (ap->flags & SIS_FLAG_CFGSCR) |
| 206 | return sis_scr_cfg_read(ap, sc_reg); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 207 | |
| 208 | pci_read_config_byte(pdev, SIS_PMR, &pmr); |
| 209 | |
| 210 | val = inl(ap->ioaddr.scr_addr + (sc_reg * 4)); |
| 211 | |
| 212 | if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 213 | val2 = inl(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 214 | |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 215 | return val | val2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) |
| 219 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 220 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 221 | u8 pmr; |
| 222 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | if (sc_reg > SCR_CONTROL) |
| 224 | return; |
| 225 | |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 226 | pci_read_config_byte(pdev, SIS_PMR, &pmr); |
Jeff Garzik | 8add788 | 2005-09-08 23:07:29 -0400 | [diff] [blame] | 227 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | if (ap->flags & SIS_FLAG_CFGSCR) |
| 229 | sis_scr_cfg_write(ap, sc_reg, val); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 230 | else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | outl(val, ap->ioaddr.scr_addr + (sc_reg * 4)); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 232 | if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) |
| 233 | outl(val, ap->ioaddr.scr_addr + (sc_reg * 4)+0x10); |
| 234 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | } |
| 236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 238 | { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 239 | static int printed_version; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | struct ata_probe_ent *probe_ent = NULL; |
| 241 | int rc; |
| 242 | u32 genctl; |
Jeff Garzik | 29da9f6 | 2006-09-25 21:56:33 -0400 | [diff] [blame] | 243 | struct ata_port_info *ppi[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | int pci_dev_busy = 0; |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 245 | u8 pmr; |
| 246 | u8 port2_start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 248 | if (!printed_version++) |
| 249 | dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); |
| 250 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | rc = pci_enable_device(pdev); |
| 252 | if (rc) |
| 253 | return rc; |
| 254 | |
| 255 | rc = pci_request_regions(pdev, DRV_NAME); |
| 256 | if (rc) { |
| 257 | pci_dev_busy = 1; |
| 258 | goto err_out; |
| 259 | } |
| 260 | |
| 261 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 262 | if (rc) |
| 263 | goto err_out_regions; |
| 264 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 265 | if (rc) |
| 266 | goto err_out_regions; |
| 267 | |
Jeff Garzik | 29da9f6 | 2006-09-25 21:56:33 -0400 | [diff] [blame] | 268 | ppi[0] = ppi[1] = &sis_port_info; |
| 269 | probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | if (!probe_ent) { |
| 271 | rc = -ENOMEM; |
| 272 | goto err_out_regions; |
| 273 | } |
| 274 | |
| 275 | /* check and see if the SCRs are in IO space or PCI cfg space */ |
| 276 | pci_read_config_dword(pdev, SIS_GENCTL, &genctl); |
| 277 | if ((genctl & GENCTL_IOMAPPED_SCR) == 0) |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 278 | probe_ent->port_flags |= SIS_FLAG_CFGSCR; |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 279 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | /* if hardware thinks SCRs are in IO space, but there are |
| 281 | * no IO resources assigned, change to PCI cfg space. |
| 282 | */ |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 283 | if ((!(probe_ent->port_flags & SIS_FLAG_CFGSCR)) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | ((pci_resource_start(pdev, SIS_SCR_PCI_BAR) == 0) || |
| 285 | (pci_resource_len(pdev, SIS_SCR_PCI_BAR) < 128))) { |
| 286 | genctl &= ~GENCTL_IOMAPPED_SCR; |
| 287 | pci_write_config_dword(pdev, SIS_GENCTL, genctl); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 288 | probe_ent->port_flags |= SIS_FLAG_CFGSCR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | } |
| 290 | |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 291 | pci_read_config_byte(pdev, SIS_PMR, &pmr); |
| 292 | if (ent->device != 0x182) { |
| 293 | if ((pmr & SIS_PMR_COMBINED) == 0) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 294 | dev_printk(KERN_INFO, &pdev->dev, |
| 295 | "Detected SiS 180/181 chipset in SATA mode\n"); |
Arnaud Patard | 39eb936 | 2005-09-13 00:36:45 +0200 | [diff] [blame] | 296 | port2_start = 64; |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 297 | } |
| 298 | else { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 299 | dev_printk(KERN_INFO, &pdev->dev, |
| 300 | "Detected SiS 180/181 chipset in combined mode\n"); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 301 | port2_start=0; |
| 302 | } |
| 303 | } |
| 304 | else { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 305 | dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182 chipset\n"); |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 306 | port2_start = 0x20; |
| 307 | } |
| 308 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 309 | if (!(probe_ent->port_flags & SIS_FLAG_CFGSCR)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | probe_ent->port[0].scr_addr = |
| 311 | pci_resource_start(pdev, SIS_SCR_PCI_BAR); |
| 312 | probe_ent->port[1].scr_addr = |
Arnaud Patard | f2c853b | 2005-09-07 22:44:48 +0200 | [diff] [blame] | 313 | pci_resource_start(pdev, SIS_SCR_PCI_BAR) + port2_start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | pci_set_master(pdev); |
Brett M Russ | a04ce0f | 2005-08-15 15:23:41 -0400 | [diff] [blame] | 317 | pci_intx(pdev, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | |
| 319 | /* FIXME: check ata_device_add return value */ |
| 320 | ata_device_add(probe_ent); |
| 321 | kfree(probe_ent); |
| 322 | |
| 323 | return 0; |
| 324 | |
| 325 | err_out_regions: |
| 326 | pci_release_regions(pdev); |
| 327 | |
| 328 | err_out: |
| 329 | if (!pci_dev_busy) |
| 330 | pci_disable_device(pdev); |
| 331 | return rc; |
| 332 | |
| 333 | } |
| 334 | |
| 335 | static int __init sis_init(void) |
| 336 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 337 | return pci_register_driver(&sis_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | } |
| 339 | |
| 340 | static void __exit sis_exit(void) |
| 341 | { |
| 342 | pci_unregister_driver(&sis_pci_driver); |
| 343 | } |
| 344 | |
| 345 | module_init(sis_init); |
| 346 | module_exit(sis_exit); |
| 347 | |