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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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 Torvalds1da177e2005-04-16 15:20:36 -070010 *
Jeff Garzikaf36d7f2005-08-28 20:18:39 -040011 * 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 Torvalds1da177e2005-04-16 15:20:36 -070030 *
31 */
32
Linus Torvalds1da177e2005-04-16 15:20:36 -070033#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 Garzika9524a72005-10-30 14:39:11 -050040#include <linux/device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070041#include <scsi/scsi_host.h>
42#include <linux/libata.h>
Alan4bb64fb2007-02-16 01:40:04 -080043#include "sis.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070044
45#define DRV_NAME "sata_sis"
Jeff Garzik8bc3fc42007-05-21 20:26:38 -040046#define DRV_VERSION "0.8"
Linus Torvalds1da177e2005-04-16 15:20:36 -070047
48enum {
49 sis_180 = 0,
50 SIS_SCR_PCI_BAR = 5,
51
52 /* PCI configuration registers */
53 SIS_GENCTL = 0x54, /* IDE General Control register */
54 SIS_SCR_BASE = 0xc0, /* sata0 phy SCR registers */
Arnaud Patardf2c853b2005-09-07 22:44:48 +020055 SIS180_SATA1_OFS = 0x10, /* offset from sata0->sata1 phy regs */
56 SIS182_SATA1_OFS = 0x20, /* offset from sata0->sata1 phy regs */
57 SIS_PMR = 0x90, /* port mapping register */
Jeff Garzik8add7882005-09-08 23:07:29 -040058 SIS_PMR_COMBINED = 0x30,
Linus Torvalds1da177e2005-04-16 15:20:36 -070059
60 /* random bits */
61 SIS_FLAG_CFGSCR = (1 << 30), /* host flag: SCRs via PCI cfg */
62
63 GENCTL_IOMAPPED_SCR = (1 << 26), /* if set, SCRs are in IO space */
64};
65
66static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
67static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg);
68static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
69
Jeff Garzik3b7d6972005-11-10 11:04:11 -050070static const struct pci_device_id sis_pci_tbl[] = {
Uwe Koziolek3f3e7312006-12-04 01:34:42 +010071 { PCI_VDEVICE(SI, 0x0180), sis_180 }, /* SiS 964/180 */
72 { PCI_VDEVICE(SI, 0x0181), sis_180 }, /* SiS 964/180 */
73 { PCI_VDEVICE(SI, 0x0182), sis_180 }, /* SiS 965/965L */
74 { PCI_VDEVICE(SI, 0x0183), sis_180 }, /* SiS 965/965L */
Uwe Kozioleka3cabb22007-06-14 23:40:43 +020075 { PCI_VDEVICE(SI, 0x1182), sis_180 }, /* SiS 966/680 */
76 { PCI_VDEVICE(SI, 0x1183), sis_180 }, /* SiS 966/966L/968/680 */
Jeff Garzik2d2744f2006-09-28 20:21:59 -040077
Linus Torvalds1da177e2005-04-16 15:20:36 -070078 { } /* terminate list */
79};
80
Linus Torvalds1da177e2005-04-16 15:20:36 -070081static struct pci_driver sis_pci_driver = {
82 .name = DRV_NAME,
83 .id_table = sis_pci_tbl,
84 .probe = sis_init_one,
85 .remove = ata_pci_remove_one,
86};
87
Jeff Garzik193515d2005-11-07 00:59:37 -050088static struct scsi_host_template sis_sht = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 .module = THIS_MODULE,
90 .name = DRV_NAME,
91 .ioctl = ata_scsi_ioctl,
92 .queuecommand = ata_scsi_queuecmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 .can_queue = ATA_DEF_QUEUE,
94 .this_id = ATA_SHT_THIS_ID,
95 .sg_tablesize = ATA_MAX_PRD,
Linus Torvalds1da177e2005-04-16 15:20:36 -070096 .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
97 .emulated = ATA_SHT_EMULATED,
98 .use_clustering = ATA_SHT_USE_CLUSTERING,
99 .proc_name = DRV_NAME,
100 .dma_boundary = ATA_DMA_BOUNDARY,
101 .slave_configure = ata_scsi_slave_config,
Tejun Heoccf68c32006-05-31 18:28:09 +0900102 .slave_destroy = ata_scsi_slave_destroy,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 .bios_param = ata_std_bios_param,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104};
105
Jeff Garzik057ace52005-10-22 14:27:05 -0400106static const struct ata_port_operations sis_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 .port_disable = ata_port_disable,
108 .tf_load = ata_tf_load,
109 .tf_read = ata_tf_read,
110 .check_status = ata_check_status,
111 .exec_command = ata_exec_command,
112 .dev_select = ata_std_dev_select,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 .bmdma_setup = ata_bmdma_setup,
114 .bmdma_start = ata_bmdma_start,
115 .bmdma_stop = ata_bmdma_stop,
116 .bmdma_status = ata_bmdma_status,
117 .qc_prep = ata_qc_prep,
118 .qc_issue = ata_qc_issue_prot,
Tejun Heo0d5ff562007-02-01 15:06:36 +0900119 .data_xfer = ata_data_xfer,
Tejun Heod7a80da2006-06-16 15:00:18 +0900120 .freeze = ata_bmdma_freeze,
121 .thaw = ata_bmdma_thaw,
122 .error_handler = ata_bmdma_error_handler,
123 .post_internal_cmd = ata_bmdma_post_internal_cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 .irq_clear = ata_bmdma_irq_clear,
Akira Iguchi246ce3b2007-01-26 16:27:58 +0900125 .irq_on = ata_irq_on,
126 .irq_ack = ata_irq_ack,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127 .scr_read = sis_scr_read,
128 .scr_write = sis_scr_write,
129 .port_start = ata_port_start,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130};
131
Tejun Heo1626aeb2007-05-04 12:43:58 +0200132static const struct ata_port_info sis_port_info = {
Jeff Garzikcca39742006-08-24 03:19:22 -0400133 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134 .pio_mask = 0x1f,
135 .mwdma_mask = 0x7,
Jeff Garzikbf6263a2007-07-09 12:16:50 -0400136 .udma_mask = ATA_UDMA6,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137 .port_ops = &sis_ops,
138};
139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140MODULE_AUTHOR("Uwe Koziolek");
141MODULE_DESCRIPTION("low-level driver for Silicon Integratad Systems SATA controller");
142MODULE_LICENSE("GPL");
143MODULE_DEVICE_TABLE(pci, sis_pci_tbl);
144MODULE_VERSION(DRV_VERSION);
145
Alan9b14dec2007-01-08 16:11:07 +0000146static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147{
Alan9b14dec2007-01-08 16:11:07 +0000148 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 unsigned int addr = SIS_SCR_BASE + (4 * sc_reg);
Alan9b14dec2007-01-08 16:11:07 +0000150 u8 pmr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151
Alan9b14dec2007-01-08 16:11:07 +0000152 if (ap->port_no) {
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100153 switch (pdev->device) {
154 case 0x0180:
155 case 0x0181:
Alan9b14dec2007-01-08 16:11:07 +0000156 pci_read_config_byte(pdev, SIS_PMR, &pmr);
157 if ((pmr & SIS_PMR_COMBINED) == 0)
158 addr += SIS180_SATA1_OFS;
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100159 break;
Jeff Garzik8add7882005-09-08 23:07:29 -0400160
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100161 case 0x0182:
162 case 0x0183:
163 case 0x1182:
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100164 addr += SIS182_SATA1_OFS;
165 break;
166 }
167 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 return addr;
169}
170
171static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
172{
Jeff Garzikcca39742006-08-24 03:19:22 -0400173 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Alan9b14dec2007-01-08 16:11:07 +0000174 unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
Uwe Koziolek668e4bc2005-09-11 17:03:35 +0200175 u32 val, val2 = 0;
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200176 u8 pmr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177
178 if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */
179 return 0xffffffff;
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200180
181 pci_read_config_byte(pdev, SIS_PMR, &pmr);
Jeff Garzik8add7882005-09-08 23:07:29 -0400182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 pci_read_config_dword(pdev, cfg_addr, &val);
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200184
Uwe Kozioleka3cabb22007-06-14 23:40:43 +0200185 if ((pdev->device == 0x0182) || (pdev->device == 0x0183) ||
186 (pdev->device == 0x1182) || (pmr & SIS_PMR_COMBINED))
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200187 pci_read_config_dword(pdev, cfg_addr+0x10, &val2);
188
Uwe Koziolek4adccf62006-11-08 09:57:00 +0100189 return (val|val2) & 0xfffffffb; /* avoid problems with powerdowned ports */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190}
191
Alan9b14dec2007-01-08 16:11:07 +0000192static void sis_scr_cfg_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193{
Jeff Garzikcca39742006-08-24 03:19:22 -0400194 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Alan9b14dec2007-01-08 16:11:07 +0000195 unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200196 u8 pmr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197
Alan9b14dec2007-01-08 16:11:07 +0000198 if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199 return;
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200200
201 pci_read_config_byte(pdev, SIS_PMR, &pmr);
Jeff Garzik8add7882005-09-08 23:07:29 -0400202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 pci_write_config_dword(pdev, cfg_addr, val);
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200204
Uwe Kozioleka3cabb22007-06-14 23:40:43 +0200205 if ((pdev->device == 0x0182) || (pdev->device == 0x0183) ||
206 (pdev->device == 0x1182) || (pmr & SIS_PMR_COMBINED))
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200207 pci_write_config_dword(pdev, cfg_addr+0x10, val);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208}
209
210static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg)
211{
Jeff Garzikcca39742006-08-24 03:19:22 -0400212 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Jeff Garzik8add7882005-09-08 23:07:29 -0400213 u32 val, val2 = 0;
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200214 u8 pmr;
215
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216 if (sc_reg > SCR_CONTROL)
217 return 0xffffffffU;
218
219 if (ap->flags & SIS_FLAG_CFGSCR)
220 return sis_scr_cfg_read(ap, sc_reg);
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200221
222 pci_read_config_byte(pdev, SIS_PMR, &pmr);
223
Tejun Heo0d5ff562007-02-01 15:06:36 +0900224 val = ioread32(ap->ioaddr.scr_addr + (sc_reg * 4));
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200225
Uwe Kozioleka3cabb22007-06-14 23:40:43 +0200226 if ((pdev->device == 0x0182) || (pdev->device == 0x0183) ||
227 (pdev->device == 0x1182) || (pmr & SIS_PMR_COMBINED))
Tejun Heo0d5ff562007-02-01 15:06:36 +0900228 val2 = ioread32(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10);
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200229
Uwe Koziolek4adccf62006-11-08 09:57:00 +0100230 return (val | val2) & 0xfffffffb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231}
232
233static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
234{
Jeff Garzikcca39742006-08-24 03:19:22 -0400235 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200236 u8 pmr;
237
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 if (sc_reg > SCR_CONTROL)
239 return;
240
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200241 pci_read_config_byte(pdev, SIS_PMR, &pmr);
Jeff Garzik8add7882005-09-08 23:07:29 -0400242
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243 if (ap->flags & SIS_FLAG_CFGSCR)
244 sis_scr_cfg_write(ap, sc_reg, val);
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200245 else {
Tejun Heo0d5ff562007-02-01 15:06:36 +0900246 iowrite32(val, ap->ioaddr.scr_addr + (sc_reg * 4));
Uwe Kozioleka3cabb22007-06-14 23:40:43 +0200247 if ((pdev->device == 0x0182) || (pdev->device == 0x0183) ||
248 (pdev->device == 0x1182) || (pmr & SIS_PMR_COMBINED))
Tejun Heo0d5ff562007-02-01 15:06:36 +0900249 iowrite32(val, ap->ioaddr.scr_addr + (sc_reg * 4)+0x10);
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200250 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251}
252
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
254{
Jeff Garzika9524a72005-10-30 14:39:11 -0500255 static int printed_version;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900256 struct ata_port_info pi = sis_port_info;
Uwe Koziolekddfc87a2007-05-25 09:48:52 +0200257 const struct ata_port_info *ppi[] = { &pi, &pi };
Tejun Heo9a829cc2007-04-17 23:44:08 +0900258 struct ata_host *host;
Uwe Koziolek4adccf62006-11-08 09:57:00 +0100259 u32 genctl, val;
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200260 u8 pmr;
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100261 u8 port2_start = 0x20;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900262 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263
Jeff Garzika9524a72005-10-30 14:39:11 -0500264 if (!printed_version++)
265 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
266
Tejun Heo24dc5f32007-01-20 16:00:28 +0900267 rc = pcim_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 if (rc)
269 return rc;
270
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 /* check and see if the SCRs are in IO space or PCI cfg space */
272 pci_read_config_dword(pdev, SIS_GENCTL, &genctl);
273 if ((genctl & GENCTL_IOMAPPED_SCR) == 0)
Tejun Heocf0e8122006-10-27 19:08:47 -0700274 pi.flags |= SIS_FLAG_CFGSCR;
Jeff Garzik8a60a072005-07-31 13:13:24 -0400275
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 /* if hardware thinks SCRs are in IO space, but there are
277 * no IO resources assigned, change to PCI cfg space.
278 */
Tejun Heocf0e8122006-10-27 19:08:47 -0700279 if ((!(pi.flags & SIS_FLAG_CFGSCR)) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 ((pci_resource_start(pdev, SIS_SCR_PCI_BAR) == 0) ||
281 (pci_resource_len(pdev, SIS_SCR_PCI_BAR) < 128))) {
282 genctl &= ~GENCTL_IOMAPPED_SCR;
283 pci_write_config_dword(pdev, SIS_GENCTL, genctl);
Tejun Heocf0e8122006-10-27 19:08:47 -0700284 pi.flags |= SIS_FLAG_CFGSCR;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 }
286
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200287 pci_read_config_byte(pdev, SIS_PMR, &pmr);
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100288 switch (ent->device) {
289 case 0x0180:
290 case 0x0181:
Alan9b14dec2007-01-08 16:11:07 +0000291
292 /* The PATA-handling is provided by pata_sis */
293 switch (pmr & 0x30) {
294 case 0x10:
Uwe Kozioleka3cabb22007-06-14 23:40:43 +0200295 ppi[1] = &sis_info133_for_sata;
Alan9b14dec2007-01-08 16:11:07 +0000296 break;
Jeff Garzika84471f2007-02-26 05:51:33 -0500297
Alan9b14dec2007-01-08 16:11:07 +0000298 case 0x30:
Uwe Kozioleka3cabb22007-06-14 23:40:43 +0200299 ppi[0] = &sis_info133_for_sata;
Alan9b14dec2007-01-08 16:11:07 +0000300 break;
301 }
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200302 if ((pmr & SIS_PMR_COMBINED) == 0) {
Jeff Garzika9524a72005-10-30 14:39:11 -0500303 dev_printk(KERN_INFO, &pdev->dev,
Uwe Koziolek4adccf62006-11-08 09:57:00 +0100304 "Detected SiS 180/181/964 chipset in SATA mode\n");
Arnaud Patard39eb9362005-09-13 00:36:45 +0200305 port2_start = 64;
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100306 } else {
Jeff Garzika9524a72005-10-30 14:39:11 -0500307 dev_printk(KERN_INFO, &pdev->dev,
308 "Detected SiS 180/181 chipset in combined mode\n");
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200309 port2_start=0;
Uwe Koziolek4adccf62006-11-08 09:57:00 +0100310 pi.flags |= ATA_FLAG_SLAVE_POSS;
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200311 }
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100312 break;
Jeff Garzikf20b16f2006-12-11 11:14:06 -0500313
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100314 case 0x0182:
315 case 0x0183:
Uwe Koziolek4adccf62006-11-08 09:57:00 +0100316 pci_read_config_dword ( pdev, 0x6C, &val);
317 if (val & (1L << 31)) {
318 dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965 chipset\n");
319 pi.flags |= ATA_FLAG_SLAVE_POSS;
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100320 } else {
Uwe Koziolek4adccf62006-11-08 09:57:00 +0100321 dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965L chipset\n");
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100322 }
323 break;
324
325 case 0x1182:
Uwe Kozioleka3cabb22007-06-14 23:40:43 +0200326 dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 1182/966/680 SATA controller\n");
327 pi.flags |= ATA_FLAG_SLAVE_POSS;
328 break;
329
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100330 case 0x1183:
Uwe Kozioleka3cabb22007-06-14 23:40:43 +0200331 dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 1183/966/966L/968/680 controller in PATA mode\n");
332 ppi[0] = &sis_info133_for_sata;
333 ppi[1] = &sis_info133_for_sata;
Uwe Koziolek3f3e7312006-12-04 01:34:42 +0100334 break;
Arnaud Patardf2c853b2005-09-07 22:44:48 +0200335 }
336
Tejun Heod583bc12007-07-04 18:02:07 +0900337 rc = ata_pci_prepare_sff_host(pdev, ppi, &host);
Tejun Heo9a829cc2007-04-17 23:44:08 +0900338 if (rc)
339 return rc;
Tejun Heocf0e8122006-10-27 19:08:47 -0700340
Tejun Heo9a829cc2007-04-17 23:44:08 +0900341 if (!(pi.flags & SIS_FLAG_CFGSCR)) {
Al Viroedceec32007-03-14 09:19:00 +0000342 void __iomem *mmio;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900343
Tejun Heo9a829cc2007-04-17 23:44:08 +0900344 rc = pcim_iomap_regions(pdev, 1 << SIS_SCR_PCI_BAR, DRV_NAME);
345 if (rc)
346 return rc;
347 mmio = host->iomap[SIS_SCR_PCI_BAR];
Tejun Heo0d5ff562007-02-01 15:06:36 +0900348
Tejun Heo9a829cc2007-04-17 23:44:08 +0900349 host->ports[0]->ioaddr.scr_addr = mmio;
350 host->ports[1]->ioaddr.scr_addr = mmio + port2_start;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 }
352
353 pci_set_master(pdev);
Brett M Russa04ce0f2005-08-15 15:23:41 -0400354 pci_intx(pdev, 1);
Tejun Heo9a829cc2007-04-17 23:44:08 +0900355 return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
356 &sis_sht);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357}
358
359static int __init sis_init(void)
360{
Pavel Roskinb7887192006-08-10 18:13:18 +0900361 return pci_register_driver(&sis_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362}
363
364static void __exit sis_exit(void)
365{
366 pci_unregister_driver(&sis_pci_driver);
367}
368
369module_init(sis_init);
370module_exit(sis_exit);