blob: 0d03f44824fb216545dcef8a0cf52f11efb4a324 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Jeff Garzikaf36d7f2005-08-28 20:18:39 -04002 * 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 Garzik5796d1c2007-10-26 00:03:37 -04006 * on emails.
Jeff Garzikaf36d7f2005-08-28 20:18:39 -04007 *
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 Garzikaf36d7f2005-08-28 20:18:39 -040033 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 */
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 Garzika9524a72005-10-30 14:39:11 -050042#include <linux/device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070043#include <scsi/scsi_host.h>
44#include <linux/libata.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
46#define DRV_NAME "sata_via"
Jeff Garzik2a3103c2007-08-31 04:54:06 -040047#define DRV_VERSION "2.3"
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
49enum board_ids_enum {
50 vt6420,
51 vt6421,
52};
53
54enum {
55 SATA_CHAN_ENAB = 0x40, /* SATA channel enable */
56 SATA_INT_GATE = 0x41, /* SATA interrupt gating */
57 SATA_NATIVE_MODE = 0x42, /* Native mode enable */
Aland73f30e2007-01-08 17:11:13 +000058 PATA_UDMA_TIMING = 0xB3, /* PATA timing for DMA/ cable detect */
59 PATA_PIO_TIMING = 0xAB, /* PATA timing register */
Jeff Garzika84471f2007-02-26 05:51:33 -050060
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 PORT0 = (1 << 1),
62 PORT1 = (1 << 0),
63 ALL_PORTS = PORT0 | PORT1,
Linus Torvalds1da177e2005-04-16 15:20:36 -070064
65 NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4),
66
67 SATA_EXT_PHY = (1 << 6), /* 0==use PATA, 1==ext phy */
Linus Torvalds1da177e2005-04-16 15:20:36 -070068};
69
Jeff Garzik5796d1c2007-10-26 00:03:37 -040070static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
Tejun Heoda3dbb12007-07-16 14:29:40 +090071static int svia_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
72static int svia_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val);
Tejun Heo17234242007-01-25 20:46:59 +090073static void svia_noop_freeze(struct ata_port *ap);
Tejun Heoac2164d2006-08-23 01:00:27 +090074static void vt6420_error_handler(struct ata_port *ap);
Jeff Garzika0fcdc02007-03-09 07:24:15 -050075static int vt6421_pata_cable_detect(struct ata_port *ap);
Aland73f30e2007-01-08 17:11:13 +000076static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev);
77static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev);
Linus Torvalds1da177e2005-04-16 15:20:36 -070078
Jeff Garzik3b7d6972005-11-10 11:04:11 -050079static const struct pci_device_id svia_pci_tbl[] = {
Luca Pedrielli96bc1032007-01-16 12:55:04 +090080 { PCI_VDEVICE(VIA, 0x5337), vt6420 },
Jeff Garzik2d2744f2006-09-28 20:21:59 -040081 { PCI_VDEVICE(VIA, 0x0591), vt6420 },
82 { PCI_VDEVICE(VIA, 0x3149), vt6420 },
83 { PCI_VDEVICE(VIA, 0x3249), vt6421 },
Jeff Garzik52df0ee2007-05-25 05:02:06 -040084 { PCI_VDEVICE(VIA, 0x5287), vt6420 },
85 { PCI_VDEVICE(VIA, 0x5372), vt6420 },
86 { PCI_VDEVICE(VIA, 0x7372), vt6420 },
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
88 { } /* terminate list */
89};
90
91static struct pci_driver svia_pci_driver = {
92 .name = DRV_NAME,
93 .id_table = svia_pci_tbl,
94 .probe = svia_init_one,
Tejun Heoe1e143c2007-05-04 15:30:34 +020095#ifdef CONFIG_PM
96 .suspend = ata_pci_device_suspend,
97 .resume = ata_pci_device_resume,
98#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 .remove = ata_pci_remove_one,
100};
101
Jeff Garzik193515d2005-11-07 00:59:37 -0500102static struct scsi_host_template svia_sht = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 .module = THIS_MODULE,
104 .name = DRV_NAME,
105 .ioctl = ata_scsi_ioctl,
106 .queuecommand = ata_scsi_queuecmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 .can_queue = ATA_DEF_QUEUE,
108 .this_id = ATA_SHT_THIS_ID,
109 .sg_tablesize = LIBATA_MAX_PRD,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110 .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
111 .emulated = ATA_SHT_EMULATED,
112 .use_clustering = ATA_SHT_USE_CLUSTERING,
113 .proc_name = DRV_NAME,
114 .dma_boundary = ATA_DMA_BOUNDARY,
115 .slave_configure = ata_scsi_slave_config,
Tejun Heoccf68c32006-05-31 18:28:09 +0900116 .slave_destroy = ata_scsi_slave_destroy,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 .bios_param = ata_std_bios_param,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118};
119
Tejun Heoac2164d2006-08-23 01:00:27 +0900120static const struct ata_port_operations vt6420_sata_ops = {
Tejun Heoac2164d2006-08-23 01:00:27 +0900121 .tf_load = ata_tf_load,
122 .tf_read = ata_tf_read,
123 .check_status = ata_check_status,
124 .exec_command = ata_exec_command,
125 .dev_select = ata_std_dev_select,
126
127 .bmdma_setup = ata_bmdma_setup,
128 .bmdma_start = ata_bmdma_start,
129 .bmdma_stop = ata_bmdma_stop,
130 .bmdma_status = ata_bmdma_status,
131
132 .qc_prep = ata_qc_prep,
133 .qc_issue = ata_qc_issue_prot,
Tejun Heo0d5ff562007-02-01 15:06:36 +0900134 .data_xfer = ata_data_xfer,
Tejun Heoac2164d2006-08-23 01:00:27 +0900135
Tejun Heo17234242007-01-25 20:46:59 +0900136 .freeze = svia_noop_freeze,
Tejun Heoac2164d2006-08-23 01:00:27 +0900137 .thaw = ata_bmdma_thaw,
138 .error_handler = vt6420_error_handler,
139 .post_internal_cmd = ata_bmdma_post_internal_cmd,
140
Tejun Heoac2164d2006-08-23 01:00:27 +0900141 .irq_clear = ata_bmdma_irq_clear,
Akira Iguchi246ce3b2007-01-26 16:27:58 +0900142 .irq_on = ata_irq_on,
Tejun Heoac2164d2006-08-23 01:00:27 +0900143
144 .port_start = ata_port_start,
Tejun Heoac2164d2006-08-23 01:00:27 +0900145};
146
Aland73f30e2007-01-08 17:11:13 +0000147static const struct ata_port_operations vt6421_pata_ops = {
Aland73f30e2007-01-08 17:11:13 +0000148 .set_piomode = vt6421_set_pio_mode,
149 .set_dmamode = vt6421_set_dma_mode,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150
151 .tf_load = ata_tf_load,
152 .tf_read = ata_tf_read,
153 .check_status = ata_check_status,
154 .exec_command = ata_exec_command,
155 .dev_select = ata_std_dev_select,
156
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 .bmdma_setup = ata_bmdma_setup,
158 .bmdma_start = ata_bmdma_start,
159 .bmdma_stop = ata_bmdma_stop,
160 .bmdma_status = ata_bmdma_status,
161
162 .qc_prep = ata_qc_prep,
163 .qc_issue = ata_qc_issue_prot,
Tejun Heo0d5ff562007-02-01 15:06:36 +0900164 .data_xfer = ata_data_xfer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165
Tejun Heo40ef1d82006-06-16 15:13:53 +0900166 .freeze = ata_bmdma_freeze,
167 .thaw = ata_bmdma_thaw,
Jeff Garzika0fcdc02007-03-09 07:24:15 -0500168 .error_handler = ata_bmdma_error_handler,
Aland73f30e2007-01-08 17:11:13 +0000169 .post_internal_cmd = ata_bmdma_post_internal_cmd,
Jeff Garzika0fcdc02007-03-09 07:24:15 -0500170 .cable_detect = vt6421_pata_cable_detect,
Aland73f30e2007-01-08 17:11:13 +0000171
Aland73f30e2007-01-08 17:11:13 +0000172 .irq_clear = ata_bmdma_irq_clear,
Akira Iguchi246ce3b2007-01-26 16:27:58 +0900173 .irq_on = ata_irq_on,
Aland73f30e2007-01-08 17:11:13 +0000174
Tejun Heoeca25dc2007-04-17 23:44:07 +0900175 .port_start = ata_port_start,
Aland73f30e2007-01-08 17:11:13 +0000176};
177
178static const struct ata_port_operations vt6421_sata_ops = {
Aland73f30e2007-01-08 17:11:13 +0000179 .tf_load = ata_tf_load,
180 .tf_read = ata_tf_read,
181 .check_status = ata_check_status,
182 .exec_command = ata_exec_command,
183 .dev_select = ata_std_dev_select,
184
185 .bmdma_setup = ata_bmdma_setup,
186 .bmdma_start = ata_bmdma_start,
187 .bmdma_stop = ata_bmdma_stop,
188 .bmdma_status = ata_bmdma_status,
189
190 .qc_prep = ata_qc_prep,
191 .qc_issue = ata_qc_issue_prot,
Tejun Heo0d5ff562007-02-01 15:06:36 +0900192 .data_xfer = ata_data_xfer,
Aland73f30e2007-01-08 17:11:13 +0000193
194 .freeze = ata_bmdma_freeze,
195 .thaw = ata_bmdma_thaw,
Jeff Garzika0fcdc02007-03-09 07:24:15 -0500196 .error_handler = ata_bmdma_error_handler,
Tejun Heo40ef1d82006-06-16 15:13:53 +0900197 .post_internal_cmd = ata_bmdma_post_internal_cmd,
Jeff Garzika0fcdc02007-03-09 07:24:15 -0500198 .cable_detect = ata_cable_sata,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 .irq_clear = ata_bmdma_irq_clear,
Akira Iguchi246ce3b2007-01-26 16:27:58 +0900201 .irq_on = ata_irq_on,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202
203 .scr_read = svia_scr_read,
204 .scr_write = svia_scr_write,
205
Tejun Heoeca25dc2007-04-17 23:44:07 +0900206 .port_start = ata_port_start,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207};
208
Tejun Heoeca25dc2007-04-17 23:44:07 +0900209static const struct ata_port_info vt6420_port_info = {
Jeff Garzikcca39742006-08-24 03:19:22 -0400210 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211 .pio_mask = 0x1f,
212 .mwdma_mask = 0x07,
Jeff Garzikbf6263a2007-07-09 12:16:50 -0400213 .udma_mask = ATA_UDMA6,
Tejun Heoac2164d2006-08-23 01:00:27 +0900214 .port_ops = &vt6420_sata_ops,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215};
216
Tejun Heoeca25dc2007-04-17 23:44:07 +0900217static struct ata_port_info vt6421_sport_info = {
218 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
219 .pio_mask = 0x1f,
220 .mwdma_mask = 0x07,
Jeff Garzikbf6263a2007-07-09 12:16:50 -0400221 .udma_mask = ATA_UDMA6,
Tejun Heoeca25dc2007-04-17 23:44:07 +0900222 .port_ops = &vt6421_sata_ops,
223};
224
225static struct ata_port_info vt6421_pport_info = {
226 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY,
227 .pio_mask = 0x1f,
228 .mwdma_mask = 0,
Jeff Garzikbf6263a2007-07-09 12:16:50 -0400229 .udma_mask = ATA_UDMA6,
Tejun Heoeca25dc2007-04-17 23:44:07 +0900230 .port_ops = &vt6421_pata_ops,
231};
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233MODULE_AUTHOR("Jeff Garzik");
234MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers");
235MODULE_LICENSE("GPL");
236MODULE_DEVICE_TABLE(pci, svia_pci_tbl);
237MODULE_VERSION(DRV_VERSION);
238
Tejun Heoda3dbb12007-07-16 14:29:40 +0900239static int svia_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240{
241 if (sc_reg > SCR_CONTROL)
Tejun Heoda3dbb12007-07-16 14:29:40 +0900242 return -EINVAL;
243 *val = ioread32(ap->ioaddr.scr_addr + (4 * sc_reg));
244 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245}
246
Tejun Heoda3dbb12007-07-16 14:29:40 +0900247static int svia_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248{
249 if (sc_reg > SCR_CONTROL)
Tejun Heoda3dbb12007-07-16 14:29:40 +0900250 return -EINVAL;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900251 iowrite32(val, ap->ioaddr.scr_addr + (4 * sc_reg));
Tejun Heoda3dbb12007-07-16 14:29:40 +0900252 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253}
254
Tejun Heo17234242007-01-25 20:46:59 +0900255static void svia_noop_freeze(struct ata_port *ap)
256{
257 /* Some VIA controllers choke if ATA_NIEN is manipulated in
258 * certain way. Leave it alone and just clear pending IRQ.
259 */
260 ata_chk_status(ap);
Tejun Heod02598722007-01-26 14:57:31 +0900261 ata_bmdma_irq_clear(ap);
Tejun Heo17234242007-01-25 20:46:59 +0900262}
263
Tejun Heoac2164d2006-08-23 01:00:27 +0900264/**
265 * vt6420_prereset - prereset for vt6420
Tejun Heocc0680a2007-08-06 18:36:23 +0900266 * @link: target ATA link
Tejun Heod4b2bab2007-02-02 16:50:52 +0900267 * @deadline: deadline jiffies for the operation
Tejun Heoac2164d2006-08-23 01:00:27 +0900268 *
269 * SCR registers on vt6420 are pieces of shit and may hang the
270 * whole machine completely if accessed with the wrong timing.
271 * To avoid such catastrophe, vt6420 doesn't provide generic SCR
272 * access operations, but uses SStatus and SControl only during
273 * boot probing in controlled way.
274 *
275 * As the old (pre EH update) probing code is proven to work, we
276 * strictly follow the access pattern.
277 *
278 * LOCKING:
279 * Kernel thread context (may sleep)
280 *
281 * RETURNS:
282 * 0 on success, -errno otherwise.
283 */
Tejun Heocc0680a2007-08-06 18:36:23 +0900284static int vt6420_prereset(struct ata_link *link, unsigned long deadline)
Tejun Heoac2164d2006-08-23 01:00:27 +0900285{
Tejun Heocc0680a2007-08-06 18:36:23 +0900286 struct ata_port *ap = link->ap;
Tejun Heo9af5c9c2007-08-06 18:36:22 +0900287 struct ata_eh_context *ehc = &ap->link.eh_context;
Tejun Heoac2164d2006-08-23 01:00:27 +0900288 unsigned long timeout = jiffies + (HZ * 5);
289 u32 sstatus, scontrol;
290 int online;
291
292 /* don't do any SCR stuff if we're not loading */
Jeff Garzik68ff6e82006-11-08 07:46:02 -0500293 if (!(ap->pflags & ATA_PFLAG_LOADING))
Tejun Heoac2164d2006-08-23 01:00:27 +0900294 goto skip_scr;
295
Jeff Garzika09060f2007-05-28 08:17:06 -0400296 /* Resume phy. This is the old SATA resume sequence */
Tejun Heoac2164d2006-08-23 01:00:27 +0900297 svia_scr_write(ap, SCR_CONTROL, 0x300);
Tejun Heoda3dbb12007-07-16 14:29:40 +0900298 svia_scr_read(ap, SCR_CONTROL, &scontrol); /* flush */
Tejun Heoac2164d2006-08-23 01:00:27 +0900299
300 /* wait for phy to become ready, if necessary */
301 do {
302 msleep(200);
Tejun Heoda3dbb12007-07-16 14:29:40 +0900303 svia_scr_read(ap, SCR_STATUS, &sstatus);
304 if ((sstatus & 0xf) != 1)
Tejun Heoac2164d2006-08-23 01:00:27 +0900305 break;
306 } while (time_before(jiffies, timeout));
307
308 /* open code sata_print_link_status() */
Tejun Heoda3dbb12007-07-16 14:29:40 +0900309 svia_scr_read(ap, SCR_STATUS, &sstatus);
310 svia_scr_read(ap, SCR_CONTROL, &scontrol);
Tejun Heoac2164d2006-08-23 01:00:27 +0900311
312 online = (sstatus & 0xf) == 0x3;
313
314 ata_port_printk(ap, KERN_INFO,
315 "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n",
316 online ? "up" : "down", sstatus, scontrol);
317
318 /* SStatus is read one more time */
Tejun Heoda3dbb12007-07-16 14:29:40 +0900319 svia_scr_read(ap, SCR_STATUS, &sstatus);
Tejun Heoac2164d2006-08-23 01:00:27 +0900320
321 if (!online) {
322 /* tell EH to bail */
323 ehc->i.action &= ~ATA_EH_RESET_MASK;
324 return 0;
325 }
326
327 skip_scr:
328 /* wait for !BSY */
Tejun Heod4b2bab2007-02-02 16:50:52 +0900329 ata_wait_ready(ap, deadline);
Tejun Heoac2164d2006-08-23 01:00:27 +0900330
331 return 0;
332}
333
334static void vt6420_error_handler(struct ata_port *ap)
335{
Harvey Harrison48e1f802008-02-13 21:14:11 -0800336 ata_bmdma_drive_eh(ap, vt6420_prereset, ata_std_softreset, NULL,
337 ata_std_postreset);
Tejun Heoac2164d2006-08-23 01:00:27 +0900338}
339
Jeff Garzika0fcdc02007-03-09 07:24:15 -0500340static int vt6421_pata_cable_detect(struct ata_port *ap)
Aland73f30e2007-01-08 17:11:13 +0000341{
342 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
343 u8 tmp;
344
345 pci_read_config_byte(pdev, PATA_UDMA_TIMING, &tmp);
346 if (tmp & 0x10)
Jeff Garzika0fcdc02007-03-09 07:24:15 -0500347 return ATA_CBL_PATA40;
348 return ATA_CBL_PATA80;
Aland73f30e2007-01-08 17:11:13 +0000349}
350
351static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
352{
353 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
354 static const u8 pio_bits[] = { 0xA8, 0x65, 0x65, 0x31, 0x20 };
355 pci_write_config_byte(pdev, PATA_PIO_TIMING, pio_bits[adev->pio_mode - XFER_PIO_0]);
356}
357
358static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
359{
360 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
361 static const u8 udma_bits[] = { 0xEE, 0xE8, 0xE6, 0xE4, 0xE2, 0xE1, 0xE0, 0xE0 };
Ondrej Zaryb4154d42007-09-01 00:55:21 +0200362 pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->dma_mode - XFER_UDMA_0]);
Aland73f30e2007-01-08 17:11:13 +0000363}
364
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365static const unsigned int svia_bar_sizes[] = {
366 8, 4, 8, 4, 16, 256
367};
368
369static const unsigned int vt6421_bar_sizes[] = {
370 16, 16, 16, 16, 32, 128
371};
372
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400373static void __iomem *svia_scr_addr(void __iomem *addr, unsigned int port)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374{
375 return addr + (port * 128);
376}
377
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400378static void __iomem *vt6421_scr_addr(void __iomem *addr, unsigned int port)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379{
380 return addr + (port * 64);
381}
382
Tejun Heoeca25dc2007-04-17 23:44:07 +0900383static void vt6421_init_addrs(struct ata_port *ap)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384{
Tejun Heoeca25dc2007-04-17 23:44:07 +0900385 void __iomem * const * iomap = ap->host->iomap;
386 void __iomem *reg_addr = iomap[ap->port_no];
387 void __iomem *bmdma_addr = iomap[4] + (ap->port_no * 8);
388 struct ata_ioports *ioaddr = &ap->ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389
Tejun Heoeca25dc2007-04-17 23:44:07 +0900390 ioaddr->cmd_addr = reg_addr;
391 ioaddr->altstatus_addr =
392 ioaddr->ctl_addr = (void __iomem *)
Tejun Heo0d5ff562007-02-01 15:06:36 +0900393 ((unsigned long)(reg_addr + 8) | ATA_PCI_CTL_OFS);
Tejun Heoeca25dc2007-04-17 23:44:07 +0900394 ioaddr->bmdma_addr = bmdma_addr;
395 ioaddr->scr_addr = vt6421_scr_addr(iomap[5], ap->port_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
Tejun Heoeca25dc2007-04-17 23:44:07 +0900397 ata_std_ports(ioaddr);
Tejun Heocbcdd872007-08-18 13:14:55 +0900398
399 ata_port_pbar_desc(ap, ap->port_no, -1, "port");
400 ata_port_pbar_desc(ap, 4, ap->port_no * 8, "bmdma");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401}
402
Tejun Heoeca25dc2007-04-17 23:44:07 +0900403static int vt6420_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404{
Tejun Heoeca25dc2007-04-17 23:44:07 +0900405 const struct ata_port_info *ppi[] = { &vt6420_port_info, NULL };
406 struct ata_host *host;
407 int rc;
Jeff Garzikf20b16f2006-12-11 11:14:06 -0500408
Tejun Heod583bc12007-07-04 18:02:07 +0900409 rc = ata_pci_prepare_sff_host(pdev, ppi, &host);
Tejun Heoeca25dc2007-04-17 23:44:07 +0900410 if (rc)
411 return rc;
412 *r_host = host;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413
Tejun Heoeca25dc2007-04-17 23:44:07 +0900414 rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME);
415 if (rc) {
Tejun Heoe1be5d72007-02-20 20:01:53 +0900416 dev_printk(KERN_ERR, &pdev->dev, "failed to iomap PCI BAR 5\n");
Tejun Heoeca25dc2007-04-17 23:44:07 +0900417 return rc;
Tejun Heoe1be5d72007-02-20 20:01:53 +0900418 }
419
Tejun Heoeca25dc2007-04-17 23:44:07 +0900420 host->ports[0]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 0);
421 host->ports[1]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
Tejun Heoeca25dc2007-04-17 23:44:07 +0900423 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424}
425
Tejun Heoeca25dc2007-04-17 23:44:07 +0900426static int vt6421_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427{
Tejun Heoeca25dc2007-04-17 23:44:07 +0900428 const struct ata_port_info *ppi[] =
429 { &vt6421_sport_info, &vt6421_sport_info, &vt6421_pport_info };
430 struct ata_host *host;
431 int i, rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
Tejun Heoeca25dc2007-04-17 23:44:07 +0900433 *r_host = host = ata_host_alloc_pinfo(&pdev->dev, ppi, ARRAY_SIZE(ppi));
434 if (!host) {
435 dev_printk(KERN_ERR, &pdev->dev, "failed to allocate host\n");
436 return -ENOMEM;
437 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438
Tejun Heo8fd7d1b2007-05-17 13:37:12 +0200439 rc = pcim_iomap_regions(pdev, 0x3f, DRV_NAME);
Tejun Heoeca25dc2007-04-17 23:44:07 +0900440 if (rc) {
441 dev_printk(KERN_ERR, &pdev->dev, "failed to request/iomap "
442 "PCI BARs (errno=%d)\n", rc);
443 return rc;
444 }
445 host->iomap = pcim_iomap_table(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446
Tejun Heoeca25dc2007-04-17 23:44:07 +0900447 for (i = 0; i < host->n_ports; i++)
448 vt6421_init_addrs(host->ports[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
Tejun Heoeca25dc2007-04-17 23:44:07 +0900450 rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
451 if (rc)
452 return rc;
453 rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
454 if (rc)
455 return rc;
Tejun Heoe1be5d72007-02-20 20:01:53 +0900456
Tejun Heoeca25dc2007-04-17 23:44:07 +0900457 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458}
459
460static void svia_configure(struct pci_dev *pdev)
461{
462 u8 tmp8;
463
464 pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, &tmp8);
Jeff Garzika9524a72005-10-30 14:39:11 -0500465 dev_printk(KERN_INFO, &pdev->dev, "routed to hard irq line %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f);
467
468 /* make sure SATA channels are enabled */
469 pci_read_config_byte(pdev, SATA_CHAN_ENAB, &tmp8);
470 if ((tmp8 & ALL_PORTS) != ALL_PORTS) {
Jeff Garzika9524a72005-10-30 14:39:11 -0500471 dev_printk(KERN_DEBUG, &pdev->dev,
472 "enabling SATA channels (0x%x)\n",
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400473 (int) tmp8);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 tmp8 |= ALL_PORTS;
475 pci_write_config_byte(pdev, SATA_CHAN_ENAB, tmp8);
476 }
477
478 /* make sure interrupts for each channel sent to us */
479 pci_read_config_byte(pdev, SATA_INT_GATE, &tmp8);
480 if ((tmp8 & ALL_PORTS) != ALL_PORTS) {
Jeff Garzika9524a72005-10-30 14:39:11 -0500481 dev_printk(KERN_DEBUG, &pdev->dev,
482 "enabling SATA channel interrupts (0x%x)\n",
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400483 (int) tmp8);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 tmp8 |= ALL_PORTS;
485 pci_write_config_byte(pdev, SATA_INT_GATE, tmp8);
486 }
487
488 /* make sure native mode is enabled */
489 pci_read_config_byte(pdev, SATA_NATIVE_MODE, &tmp8);
490 if ((tmp8 & NATIVE_MODE_ALL) != NATIVE_MODE_ALL) {
Jeff Garzika9524a72005-10-30 14:39:11 -0500491 dev_printk(KERN_DEBUG, &pdev->dev,
492 "enabling SATA channel native mode (0x%x)\n",
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400493 (int) tmp8);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 tmp8 |= NATIVE_MODE_ALL;
495 pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8);
496 }
497}
498
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400499static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500{
501 static int printed_version;
502 unsigned int i;
503 int rc;
Tejun Heoeca25dc2007-04-17 23:44:07 +0900504 struct ata_host *host;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505 int board_id = (int) ent->driver_data;
Al Virob4482a42007-10-14 19:35:40 +0100506 const unsigned *bar_sizes;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507
508 if (!printed_version++)
Jeff Garzika9524a72005-10-30 14:39:11 -0500509 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510
Tejun Heo24dc5f32007-01-20 16:00:28 +0900511 rc = pcim_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512 if (rc)
513 return rc;
514
Tejun Heob6d6c742007-09-21 17:55:44 +0900515 if (board_id == vt6420)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 bar_sizes = &svia_bar_sizes[0];
Tejun Heob6d6c742007-09-21 17:55:44 +0900517 else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518 bar_sizes = &vt6421_bar_sizes[0];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519
520 for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++)
521 if ((pci_resource_start(pdev, i) == 0) ||
522 (pci_resource_len(pdev, i) < bar_sizes[i])) {
Jeff Garzika9524a72005-10-30 14:39:11 -0500523 dev_printk(KERN_ERR, &pdev->dev,
Greg Kroah-Hartmane29419f2006-06-12 15:20:16 -0700524 "invalid PCI BAR %u (sz 0x%llx, val 0x%llx)\n",
525 i,
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400526 (unsigned long long)pci_resource_start(pdev, i),
527 (unsigned long long)pci_resource_len(pdev, i));
Tejun Heo24dc5f32007-01-20 16:00:28 +0900528 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 }
530
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531 if (board_id == vt6420)
Tejun Heoeca25dc2007-04-17 23:44:07 +0900532 rc = vt6420_prepare_host(pdev, &host);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533 else
Tejun Heoeca25dc2007-04-17 23:44:07 +0900534 rc = vt6421_prepare_host(pdev, &host);
535 if (rc)
536 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537
538 svia_configure(pdev);
539
540 pci_set_master(pdev);
Tejun Heoeca25dc2007-04-17 23:44:07 +0900541 return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
542 &svia_sht);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543}
544
545static int __init svia_init(void)
546{
Pavel Roskinb7887192006-08-10 18:13:18 +0900547 return pci_register_driver(&svia_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548}
549
550static void __exit svia_exit(void)
551{
552 pci_unregister_driver(&svia_pci_driver);
553}
554
555module_init(svia_init);
556module_exit(svia_exit);