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1da177e4 LT |
1 | /* |
2 | * sata_sil.c - Silicon Image SATA | |
3 | * | |
4 | * Maintained by: Jeff Garzik <jgarzik@pobox.com> | |
5 | * Please ALWAYS copy linux-ide@vger.kernel.org | |
6 | * on emails. | |
7 | * | |
af36d7f0 | 8 | * Copyright 2003-2005 Red Hat, Inc. |
1da177e4 LT |
9 | * Copyright 2003 Benjamin Herrenschmidt |
10 | * | |
af36d7f0 JG |
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.* | |
1da177e4 | 29 | * |
953d1137 JG |
30 | * Documentation for SiI 3112: |
31 | * http://gkernel.sourceforge.net/specs/sii/3112A_SiI-DS-0095-B2.pdf.bz2 | |
32 | * | |
33 | * Other errata and documentation available under NDA. | |
34 | * | |
1da177e4 LT |
35 | */ |
36 | ||
37 | #include <linux/kernel.h> | |
38 | #include <linux/module.h> | |
39 | #include <linux/pci.h> | |
40 | #include <linux/init.h> | |
41 | #include <linux/blkdev.h> | |
42 | #include <linux/delay.h> | |
43 | #include <linux/interrupt.h> | |
a9524a76 | 44 | #include <linux/device.h> |
1da177e4 LT |
45 | #include "scsi.h" |
46 | #include <scsi/scsi_host.h> | |
47 | #include <linux/libata.h> | |
48 | ||
49 | #define DRV_NAME "sata_sil" | |
50 | #define DRV_VERSION "0.9" | |
51 | ||
52 | enum { | |
e4deec63 TH |
53 | SIL_FLAG_MOD15WRITE = (1 << 30), |
54 | ||
1da177e4 | 55 | sil_3112 = 0, |
e4deec63 TH |
56 | sil_3112_m15w = 1, |
57 | sil_3114 = 2, | |
1da177e4 LT |
58 | |
59 | SIL_FIFO_R0 = 0x40, | |
60 | SIL_FIFO_W0 = 0x41, | |
61 | SIL_FIFO_R1 = 0x44, | |
62 | SIL_FIFO_W1 = 0x45, | |
63 | SIL_FIFO_R2 = 0x240, | |
64 | SIL_FIFO_W2 = 0x241, | |
65 | SIL_FIFO_R3 = 0x244, | |
66 | SIL_FIFO_W3 = 0x245, | |
67 | ||
68 | SIL_SYSCFG = 0x48, | |
69 | SIL_MASK_IDE0_INT = (1 << 22), | |
70 | SIL_MASK_IDE1_INT = (1 << 23), | |
71 | SIL_MASK_IDE2_INT = (1 << 24), | |
72 | SIL_MASK_IDE3_INT = (1 << 25), | |
73 | SIL_MASK_2PORT = SIL_MASK_IDE0_INT | SIL_MASK_IDE1_INT, | |
74 | SIL_MASK_4PORT = SIL_MASK_2PORT | | |
75 | SIL_MASK_IDE2_INT | SIL_MASK_IDE3_INT, | |
76 | ||
77 | SIL_IDE2_BMDMA = 0x200, | |
78 | ||
79 | SIL_INTR_STEERING = (1 << 1), | |
80 | SIL_QUIRK_MOD15WRITE = (1 << 0), | |
81 | SIL_QUIRK_UDMA5MAX = (1 << 1), | |
82 | }; | |
83 | ||
84 | static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); | |
85 | static void sil_dev_config(struct ata_port *ap, struct ata_device *dev); | |
86 | static u32 sil_scr_read (struct ata_port *ap, unsigned int sc_reg); | |
87 | static void sil_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); | |
88 | static void sil_post_set_mode (struct ata_port *ap); | |
89 | ||
374b1873 | 90 | |
1da177e4 | 91 | static struct pci_device_id sil_pci_tbl[] = { |
e4deec63 TH |
92 | { 0x1095, 0x3112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3112_m15w }, |
93 | { 0x1095, 0x0240, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3112_m15w }, | |
1da177e4 LT |
94 | { 0x1095, 0x3512, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3112 }, |
95 | { 0x1095, 0x3114, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3114 }, | |
e4deec63 TH |
96 | { 0x1002, 0x436e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3112_m15w }, |
97 | { 0x1002, 0x4379, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3112_m15w }, | |
98 | { 0x1002, 0x437a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sil_3112_m15w }, | |
1da177e4 LT |
99 | { } /* terminate list */ |
100 | }; | |
101 | ||
102 | ||
103 | /* TODO firmware versions should be added - eric */ | |
104 | static const struct sil_drivelist { | |
105 | const char * product; | |
106 | unsigned int quirk; | |
107 | } sil_blacklist [] = { | |
108 | { "ST320012AS", SIL_QUIRK_MOD15WRITE }, | |
109 | { "ST330013AS", SIL_QUIRK_MOD15WRITE }, | |
110 | { "ST340017AS", SIL_QUIRK_MOD15WRITE }, | |
111 | { "ST360015AS", SIL_QUIRK_MOD15WRITE }, | |
112 | { "ST380013AS", SIL_QUIRK_MOD15WRITE }, | |
113 | { "ST380023AS", SIL_QUIRK_MOD15WRITE }, | |
114 | { "ST3120023AS", SIL_QUIRK_MOD15WRITE }, | |
115 | { "ST3160023AS", SIL_QUIRK_MOD15WRITE }, | |
116 | { "ST3120026AS", SIL_QUIRK_MOD15WRITE }, | |
117 | { "ST3200822AS", SIL_QUIRK_MOD15WRITE }, | |
118 | { "ST340014ASL", SIL_QUIRK_MOD15WRITE }, | |
119 | { "ST360014ASL", SIL_QUIRK_MOD15WRITE }, | |
120 | { "ST380011ASL", SIL_QUIRK_MOD15WRITE }, | |
121 | { "ST3120022ASL", SIL_QUIRK_MOD15WRITE }, | |
122 | { "ST3160021ASL", SIL_QUIRK_MOD15WRITE }, | |
123 | { "Maxtor 4D060H3", SIL_QUIRK_UDMA5MAX }, | |
124 | { } | |
125 | }; | |
126 | ||
127 | static struct pci_driver sil_pci_driver = { | |
128 | .name = DRV_NAME, | |
129 | .id_table = sil_pci_tbl, | |
130 | .probe = sil_init_one, | |
131 | .remove = ata_pci_remove_one, | |
132 | }; | |
133 | ||
134 | static Scsi_Host_Template sil_sht = { | |
135 | .module = THIS_MODULE, | |
136 | .name = DRV_NAME, | |
137 | .ioctl = ata_scsi_ioctl, | |
138 | .queuecommand = ata_scsi_queuecmd, | |
139 | .eh_strategy_handler = ata_scsi_error, | |
140 | .can_queue = ATA_DEF_QUEUE, | |
141 | .this_id = ATA_SHT_THIS_ID, | |
142 | .sg_tablesize = LIBATA_MAX_PRD, | |
143 | .max_sectors = ATA_MAX_SECTORS, | |
144 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, | |
145 | .emulated = ATA_SHT_EMULATED, | |
146 | .use_clustering = ATA_SHT_USE_CLUSTERING, | |
147 | .proc_name = DRV_NAME, | |
148 | .dma_boundary = ATA_DMA_BOUNDARY, | |
149 | .slave_configure = ata_scsi_slave_config, | |
150 | .bios_param = ata_std_bios_param, | |
151 | .ordered_flush = 1, | |
152 | }; | |
153 | ||
057ace5e | 154 | static const struct ata_port_operations sil_ops = { |
1da177e4 LT |
155 | .port_disable = ata_port_disable, |
156 | .dev_config = sil_dev_config, | |
157 | .tf_load = ata_tf_load, | |
158 | .tf_read = ata_tf_read, | |
159 | .check_status = ata_check_status, | |
160 | .exec_command = ata_exec_command, | |
161 | .dev_select = ata_std_dev_select, | |
162 | .phy_reset = sata_phy_reset, | |
163 | .post_set_mode = sil_post_set_mode, | |
164 | .bmdma_setup = ata_bmdma_setup, | |
165 | .bmdma_start = ata_bmdma_start, | |
166 | .bmdma_stop = ata_bmdma_stop, | |
167 | .bmdma_status = ata_bmdma_status, | |
168 | .qc_prep = ata_qc_prep, | |
169 | .qc_issue = ata_qc_issue_prot, | |
170 | .eng_timeout = ata_eng_timeout, | |
171 | .irq_handler = ata_interrupt, | |
172 | .irq_clear = ata_bmdma_irq_clear, | |
173 | .scr_read = sil_scr_read, | |
174 | .scr_write = sil_scr_write, | |
175 | .port_start = ata_port_start, | |
176 | .port_stop = ata_port_stop, | |
374b1873 | 177 | .host_stop = ata_pci_host_stop, |
1da177e4 LT |
178 | }; |
179 | ||
180 | static struct ata_port_info sil_port_info[] = { | |
181 | /* sil_3112 */ | |
182 | { | |
183 | .sht = &sil_sht, | |
184 | .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | | |
185 | ATA_FLAG_SRST | ATA_FLAG_MMIO, | |
186 | .pio_mask = 0x1f, /* pio0-4 */ | |
187 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
188 | .udma_mask = 0x3f, /* udma0-5 */ | |
189 | .port_ops = &sil_ops, | |
e4deec63 TH |
190 | }, /* sil_3112_15w - keep it sync'd w/ sil_3112 */ |
191 | { | |
192 | .sht = &sil_sht, | |
193 | .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | | |
194 | ATA_FLAG_SRST | ATA_FLAG_MMIO | | |
195 | SIL_FLAG_MOD15WRITE, | |
196 | .pio_mask = 0x1f, /* pio0-4 */ | |
197 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
198 | .udma_mask = 0x3f, /* udma0-5 */ | |
199 | .port_ops = &sil_ops, | |
1da177e4 LT |
200 | }, /* sil_3114 */ |
201 | { | |
202 | .sht = &sil_sht, | |
203 | .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | | |
204 | ATA_FLAG_SRST | ATA_FLAG_MMIO, | |
205 | .pio_mask = 0x1f, /* pio0-4 */ | |
206 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
207 | .udma_mask = 0x3f, /* udma0-5 */ | |
208 | .port_ops = &sil_ops, | |
209 | }, | |
210 | }; | |
211 | ||
212 | /* per-port register offsets */ | |
213 | /* TODO: we can probably calculate rather than use a table */ | |
214 | static const struct { | |
215 | unsigned long tf; /* ATA taskfile register block */ | |
216 | unsigned long ctl; /* ATA control/altstatus register block */ | |
217 | unsigned long bmdma; /* DMA register block */ | |
218 | unsigned long scr; /* SATA control register block */ | |
219 | unsigned long sien; /* SATA Interrupt Enable register */ | |
220 | unsigned long xfer_mode;/* data transfer mode register */ | |
221 | } sil_port[] = { | |
222 | /* port 0 ... */ | |
223 | { 0x80, 0x8A, 0x00, 0x100, 0x148, 0xb4 }, | |
224 | { 0xC0, 0xCA, 0x08, 0x180, 0x1c8, 0xf4 }, | |
225 | { 0x280, 0x28A, 0x200, 0x300, 0x348, 0x2b4 }, | |
226 | { 0x2C0, 0x2CA, 0x208, 0x380, 0x3c8, 0x2f4 }, | |
227 | /* ... port 3 */ | |
228 | }; | |
229 | ||
230 | MODULE_AUTHOR("Jeff Garzik"); | |
231 | MODULE_DESCRIPTION("low-level driver for Silicon Image SATA controller"); | |
232 | MODULE_LICENSE("GPL"); | |
233 | MODULE_DEVICE_TABLE(pci, sil_pci_tbl); | |
234 | MODULE_VERSION(DRV_VERSION); | |
235 | ||
374b1873 | 236 | |
1da177e4 LT |
237 | static unsigned char sil_get_device_cache_line(struct pci_dev *pdev) |
238 | { | |
239 | u8 cache_line = 0; | |
240 | pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache_line); | |
241 | return cache_line; | |
242 | } | |
243 | ||
244 | static void sil_post_set_mode (struct ata_port *ap) | |
245 | { | |
246 | struct ata_host_set *host_set = ap->host_set; | |
247 | struct ata_device *dev; | |
ea6ba10b JG |
248 | void __iomem *addr = |
249 | host_set->mmio_base + sil_port[ap->port_no].xfer_mode; | |
1da177e4 LT |
250 | u32 tmp, dev_mode[2]; |
251 | unsigned int i; | |
252 | ||
253 | for (i = 0; i < 2; i++) { | |
254 | dev = &ap->device[i]; | |
255 | if (!ata_dev_present(dev)) | |
256 | dev_mode[i] = 0; /* PIO0/1/2 */ | |
257 | else if (dev->flags & ATA_DFLAG_PIO) | |
258 | dev_mode[i] = 1; /* PIO3/4 */ | |
259 | else | |
260 | dev_mode[i] = 3; /* UDMA */ | |
261 | /* value 2 indicates MDMA */ | |
262 | } | |
263 | ||
264 | tmp = readl(addr); | |
265 | tmp &= ~((1<<5) | (1<<4) | (1<<1) | (1<<0)); | |
266 | tmp |= dev_mode[0]; | |
267 | tmp |= (dev_mode[1] << 4); | |
268 | writel(tmp, addr); | |
269 | readl(addr); /* flush */ | |
270 | } | |
271 | ||
272 | static inline unsigned long sil_scr_addr(struct ata_port *ap, unsigned int sc_reg) | |
273 | { | |
274 | unsigned long offset = ap->ioaddr.scr_addr; | |
275 | ||
276 | switch (sc_reg) { | |
277 | case SCR_STATUS: | |
278 | return offset + 4; | |
279 | case SCR_ERROR: | |
280 | return offset + 8; | |
281 | case SCR_CONTROL: | |
282 | return offset; | |
283 | default: | |
284 | /* do nothing */ | |
285 | break; | |
286 | } | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
291 | static u32 sil_scr_read (struct ata_port *ap, unsigned int sc_reg) | |
292 | { | |
9aa36e89 | 293 | void __iomem *mmio = (void __iomem *) sil_scr_addr(ap, sc_reg); |
1da177e4 LT |
294 | if (mmio) |
295 | return readl(mmio); | |
296 | return 0xffffffffU; | |
297 | } | |
298 | ||
299 | static void sil_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) | |
300 | { | |
9aa36e89 | 301 | void *mmio = (void __iomem *) sil_scr_addr(ap, sc_reg); |
1da177e4 LT |
302 | if (mmio) |
303 | writel(val, mmio); | |
304 | } | |
305 | ||
306 | /** | |
307 | * sil_dev_config - Apply device/host-specific errata fixups | |
308 | * @ap: Port containing device to be examined | |
309 | * @dev: Device to be examined | |
310 | * | |
311 | * After the IDENTIFY [PACKET] DEVICE step is complete, and a | |
312 | * device is known to be present, this function is called. | |
313 | * We apply two errata fixups which are specific to Silicon Image, | |
314 | * a Seagate and a Maxtor fixup. | |
315 | * | |
316 | * For certain Seagate devices, we must limit the maximum sectors | |
317 | * to under 8K. | |
318 | * | |
319 | * For certain Maxtor devices, we must not program the drive | |
320 | * beyond udma5. | |
321 | * | |
322 | * Both fixups are unfairly pessimistic. As soon as I get more | |
323 | * information on these errata, I will create a more exhaustive | |
324 | * list, and apply the fixups to only the specific | |
325 | * devices/hosts/firmwares that need it. | |
326 | * | |
327 | * 20040111 - Seagate drives affected by the Mod15Write bug are blacklisted | |
328 | * The Maxtor quirk is in the blacklist, but I'm keeping the original | |
329 | * pessimistic fix for the following reasons... | |
330 | * - There seems to be less info on it, only one device gleaned off the | |
331 | * Windows driver, maybe only one is affected. More info would be greatly | |
332 | * appreciated. | |
333 | * - But then again UDMA5 is hardly anything to complain about | |
334 | */ | |
335 | static void sil_dev_config(struct ata_port *ap, struct ata_device *dev) | |
336 | { | |
337 | unsigned int n, quirks = 0; | |
338 | unsigned char model_num[40]; | |
339 | const char *s; | |
340 | unsigned int len; | |
341 | ||
342 | ata_dev_id_string(dev->id, model_num, ATA_ID_PROD_OFS, | |
343 | sizeof(model_num)); | |
344 | s = &model_num[0]; | |
345 | len = strnlen(s, sizeof(model_num)); | |
346 | ||
347 | /* ATAPI specifies that empty space is blank-filled; remove blanks */ | |
348 | while ((len > 0) && (s[len - 1] == ' ')) | |
349 | len--; | |
350 | ||
8a60a071 | 351 | for (n = 0; sil_blacklist[n].product; n++) |
1da177e4 LT |
352 | if (!memcmp(sil_blacklist[n].product, s, |
353 | strlen(sil_blacklist[n].product))) { | |
354 | quirks = sil_blacklist[n].quirk; | |
355 | break; | |
356 | } | |
8a60a071 | 357 | |
1da177e4 | 358 | /* limit requests to 15 sectors */ |
e4deec63 | 359 | if ((ap->flags & SIL_FLAG_MOD15WRITE) && (quirks & SIL_QUIRK_MOD15WRITE)) { |
1da177e4 LT |
360 | printk(KERN_INFO "ata%u(%u): applying Seagate errata fix\n", |
361 | ap->id, dev->devno); | |
362 | ap->host->max_sectors = 15; | |
363 | ap->host->hostt->max_sectors = 15; | |
364 | dev->flags |= ATA_DFLAG_LOCK_SECTORS; | |
365 | return; | |
366 | } | |
367 | ||
368 | /* limit to udma5 */ | |
369 | if (quirks & SIL_QUIRK_UDMA5MAX) { | |
370 | printk(KERN_INFO "ata%u(%u): applying Maxtor errata fix %s\n", | |
371 | ap->id, dev->devno, s); | |
372 | ap->udma_mask &= ATA_UDMA5; | |
373 | return; | |
374 | } | |
375 | } | |
376 | ||
377 | static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) | |
378 | { | |
379 | static int printed_version; | |
380 | struct ata_probe_ent *probe_ent = NULL; | |
381 | unsigned long base; | |
ea6ba10b | 382 | void __iomem *mmio_base; |
1da177e4 LT |
383 | int rc; |
384 | unsigned int i; | |
385 | int pci_dev_busy = 0; | |
386 | u32 tmp, irq_mask; | |
387 | u8 cls; | |
388 | ||
389 | if (!printed_version++) | |
a9524a76 | 390 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
1da177e4 LT |
391 | |
392 | /* | |
393 | * If this driver happens to only be useful on Apple's K2, then | |
394 | * we should check that here as it has a normal Serverworks ID | |
395 | */ | |
396 | rc = pci_enable_device(pdev); | |
397 | if (rc) | |
398 | return rc; | |
399 | ||
400 | rc = pci_request_regions(pdev, DRV_NAME); | |
401 | if (rc) { | |
402 | pci_dev_busy = 1; | |
403 | goto err_out; | |
404 | } | |
405 | ||
406 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); | |
407 | if (rc) | |
408 | goto err_out_regions; | |
409 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); | |
410 | if (rc) | |
411 | goto err_out_regions; | |
412 | ||
413 | probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL); | |
414 | if (probe_ent == NULL) { | |
415 | rc = -ENOMEM; | |
416 | goto err_out_regions; | |
417 | } | |
418 | ||
419 | memset(probe_ent, 0, sizeof(*probe_ent)); | |
420 | INIT_LIST_HEAD(&probe_ent->node); | |
421 | probe_ent->dev = pci_dev_to_dev(pdev); | |
422 | probe_ent->port_ops = sil_port_info[ent->driver_data].port_ops; | |
423 | probe_ent->sht = sil_port_info[ent->driver_data].sht; | |
424 | probe_ent->n_ports = (ent->driver_data == sil_3114) ? 4 : 2; | |
425 | probe_ent->pio_mask = sil_port_info[ent->driver_data].pio_mask; | |
426 | probe_ent->mwdma_mask = sil_port_info[ent->driver_data].mwdma_mask; | |
427 | probe_ent->udma_mask = sil_port_info[ent->driver_data].udma_mask; | |
428 | probe_ent->irq = pdev->irq; | |
429 | probe_ent->irq_flags = SA_SHIRQ; | |
430 | probe_ent->host_flags = sil_port_info[ent->driver_data].host_flags; | |
431 | ||
374b1873 | 432 | mmio_base = pci_iomap(pdev, 5, 0); |
1da177e4 LT |
433 | if (mmio_base == NULL) { |
434 | rc = -ENOMEM; | |
435 | goto err_out_free_ent; | |
436 | } | |
437 | ||
438 | probe_ent->mmio_base = mmio_base; | |
439 | ||
440 | base = (unsigned long) mmio_base; | |
441 | ||
442 | for (i = 0; i < probe_ent->n_ports; i++) { | |
443 | probe_ent->port[i].cmd_addr = base + sil_port[i].tf; | |
444 | probe_ent->port[i].altstatus_addr = | |
445 | probe_ent->port[i].ctl_addr = base + sil_port[i].ctl; | |
446 | probe_ent->port[i].bmdma_addr = base + sil_port[i].bmdma; | |
447 | probe_ent->port[i].scr_addr = base + sil_port[i].scr; | |
448 | ata_std_ports(&probe_ent->port[i]); | |
449 | } | |
450 | ||
451 | /* Initialize FIFO PCI bus arbitration */ | |
452 | cls = sil_get_device_cache_line(pdev); | |
453 | if (cls) { | |
454 | cls >>= 3; | |
455 | cls++; /* cls = (line_size/8)+1 */ | |
456 | writeb(cls, mmio_base + SIL_FIFO_R0); | |
457 | writeb(cls, mmio_base + SIL_FIFO_W0); | |
458 | writeb(cls, mmio_base + SIL_FIFO_R1); | |
e1dd23a0 JA |
459 | writeb(cls, mmio_base + SIL_FIFO_W1); |
460 | if (ent->driver_data == sil_3114) { | |
461 | writeb(cls, mmio_base + SIL_FIFO_R2); | |
462 | writeb(cls, mmio_base + SIL_FIFO_W2); | |
463 | writeb(cls, mmio_base + SIL_FIFO_R3); | |
464 | writeb(cls, mmio_base + SIL_FIFO_W3); | |
465 | } | |
1da177e4 | 466 | } else |
a9524a76 JG |
467 | dev_printk(KERN_WARNING, &pdev->dev, |
468 | "cache line size not set. Driver may not function\n"); | |
1da177e4 LT |
469 | |
470 | if (ent->driver_data == sil_3114) { | |
471 | irq_mask = SIL_MASK_4PORT; | |
472 | ||
473 | /* flip the magic "make 4 ports work" bit */ | |
474 | tmp = readl(mmio_base + SIL_IDE2_BMDMA); | |
475 | if ((tmp & SIL_INTR_STEERING) == 0) | |
476 | writel(tmp | SIL_INTR_STEERING, | |
477 | mmio_base + SIL_IDE2_BMDMA); | |
478 | ||
479 | } else { | |
480 | irq_mask = SIL_MASK_2PORT; | |
481 | } | |
482 | ||
483 | /* make sure IDE0/1/2/3 interrupts are not masked */ | |
484 | tmp = readl(mmio_base + SIL_SYSCFG); | |
485 | if (tmp & irq_mask) { | |
486 | tmp &= ~irq_mask; | |
487 | writel(tmp, mmio_base + SIL_SYSCFG); | |
488 | readl(mmio_base + SIL_SYSCFG); /* flush */ | |
489 | } | |
490 | ||
491 | /* mask all SATA phy-related interrupts */ | |
492 | /* TODO: unmask bit 6 (SError N bit) for hotplug */ | |
493 | for (i = 0; i < probe_ent->n_ports; i++) | |
494 | writel(0, mmio_base + sil_port[i].sien); | |
495 | ||
496 | pci_set_master(pdev); | |
497 | ||
498 | /* FIXME: check ata_device_add return value */ | |
499 | ata_device_add(probe_ent); | |
500 | kfree(probe_ent); | |
501 | ||
502 | return 0; | |
503 | ||
504 | err_out_free_ent: | |
505 | kfree(probe_ent); | |
506 | err_out_regions: | |
507 | pci_release_regions(pdev); | |
508 | err_out: | |
509 | if (!pci_dev_busy) | |
510 | pci_disable_device(pdev); | |
511 | return rc; | |
512 | } | |
513 | ||
514 | static int __init sil_init(void) | |
515 | { | |
516 | return pci_module_init(&sil_pci_driver); | |
517 | } | |
518 | ||
519 | static void __exit sil_exit(void) | |
520 | { | |
521 | pci_unregister_driver(&sil_pci_driver); | |
522 | } | |
523 | ||
524 | ||
525 | module_init(sil_init); | |
526 | module_exit(sil_exit); |