?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
libata: mask off DET when restoring SControl for detach
[linux-2.6/mini2440.git] / drivers / ide / sis5513.c
blobad32e18c5ba368abbc8f5925181845c78b262df3
1 /*
2 * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
3 * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
4 * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz>
5 * Copyright (C) 2007 Bartlomiej Zolnierkiewicz
6 *
7 * May be copied or modified under the terms of the GNU General Public License
8 *
9 *
10 * Thanks :
11 *
12 * SiS Taiwan : for direct support and hardware.
13 * Daniela Engert : for initial ATA100 advices and numerous others.
14 * John Fremlin, Manfred Spraul, Dave Morgan, Peter Kjellerstedt :
15 * for checking code correctness, providing patches.
16 *
17 *
18 * Original tests and design on the SiS620 chipset.
19 * ATA100 tests and design on the SiS735 chipset.
20 * ATA16/33 support from specs
21 * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw>
22 * ATA133 961/962/963 fixes by Vojtech Pavlik <vojtech@suse.cz>
23 *
24 * Documentation:
25 * SiS chipset documentation available under NDA to companies only
26 * (not to individuals).
27 */
28
29 /*
30 * The original SiS5513 comes from a SiS5511/55112/5513 chipset. The original
31 * SiS5513 was also used in the SiS5596/5513 chipset. Thus if we see a SiS5511
32 * or SiS5596, we can assume we see the first MWDMA-16 capable SiS5513 chip.
33 *
34 * Later SiS chipsets integrated the 5513 functionality into the NorthBridge,
35 * starting with SiS5571 and up to SiS745. The PCI ID didn't change, though. We
36 * can figure out that we have a more modern and more capable 5513 by looking
37 * for the respective NorthBridge IDs.
38 *
39 * Even later (96x family) SiS chipsets use the MuTIOL link and place the 5513
40 * into the SouthBrige. Here we cannot rely on looking up the NorthBridge PCI
41 * ID, while the now ATA-133 capable 5513 still has the same PCI ID.
42 * Fortunately the 5513 can be 'unmasked' by fiddling with some config space
43 * bits, changing its device id to the true one - 5517 for 961 and 5518 for
44 * 962/963.
45 */
46
47 #include <linux/types.h>
48 #include <linux/module.h>
49 #include <linux/kernel.h>
50 #include <linux/pci.h>
51 #include <linux/init.h>
52 #include <linux/ide.h>
53
54 #define DRV_NAME "sis5513"
55
56 /* registers layout and init values are chipset family dependant */
57
58 #define ATA_16 0x01
59 #define ATA_33 0x02
60 #define ATA_66 0x03
61 #define ATA_100a 0x04 /* SiS730/SiS550 is ATA100 with ATA66 layout */
62 #define ATA_100 0x05
63 #define ATA_133a 0x06 /* SiS961b with 133 support */
64 #define ATA_133 0x07 /* SiS962/963 */
65
66 static u8 chipset_family;
67
68 /*
69 * Devices supported
70 */
71 static const struct {
72 const char *name;
73 u16 host_id;
74 u8 chipset_family;
75 u8 flags;
76 } SiSHostChipInfo[] = {
77 { "SiS968", PCI_DEVICE_ID_SI_968, ATA_133 },
78 { "SiS966", PCI_DEVICE_ID_SI_966, ATA_133 },
79 { "SiS965", PCI_DEVICE_ID_SI_965, ATA_133 },
80 { "SiS745", PCI_DEVICE_ID_SI_745, ATA_100 },
81 { "SiS735", PCI_DEVICE_ID_SI_735, ATA_100 },
82 { "SiS733", PCI_DEVICE_ID_SI_733, ATA_100 },
83 { "SiS635", PCI_DEVICE_ID_SI_635, ATA_100 },
84 { "SiS633", PCI_DEVICE_ID_SI_633, ATA_100 },
85
86 { "SiS730", PCI_DEVICE_ID_SI_730, ATA_100a },
87 { "SiS550", PCI_DEVICE_ID_SI_550, ATA_100a },
88
89 { "SiS640", PCI_DEVICE_ID_SI_640, ATA_66 },
90 { "SiS630", PCI_DEVICE_ID_SI_630, ATA_66 },
91 { "SiS620", PCI_DEVICE_ID_SI_620, ATA_66 },
92 { "SiS540", PCI_DEVICE_ID_SI_540, ATA_66 },
93 { "SiS530", PCI_DEVICE_ID_SI_530, ATA_66 },
94
95 { "SiS5600", PCI_DEVICE_ID_SI_5600, ATA_33 },
96 { "SiS5598", PCI_DEVICE_ID_SI_5598, ATA_33 },
97 { "SiS5597", PCI_DEVICE_ID_SI_5597, ATA_33 },
98 { "SiS5591/2", PCI_DEVICE_ID_SI_5591, ATA_33 },
99 { "SiS5582", PCI_DEVICE_ID_SI_5582, ATA_33 },
100 { "SiS5581", PCI_DEVICE_ID_SI_5581, ATA_33 },
101
102 { "SiS5596", PCI_DEVICE_ID_SI_5596, ATA_16 },
103 { "SiS5571", PCI_DEVICE_ID_SI_5571, ATA_16 },
104 { "SiS5517", PCI_DEVICE_ID_SI_5517, ATA_16 },
105 { "SiS551x", PCI_DEVICE_ID_SI_5511, ATA_16 },
106 };
107
108 /* Cycle time bits and values vary across chip dma capabilities
109 These three arrays hold the register layout and the values to set.
110 Indexed by chipset_family and (dma_mode - XFER_UDMA_0) */
111
112 /* {0, ATA_16, ATA_33, ATA_66, ATA_100a, ATA_100, ATA_133} */
113 static u8 cycle_time_offset[] = { 0, 0, 5, 4, 4, 0, 0 };
114 static u8 cycle_time_range[] = { 0, 0, 2, 3, 3, 4, 4 };
115 static u8 cycle_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = {
116 { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */
117 { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */
118 { 3, 2, 1, 0, 0, 0, 0 }, /* ATA_33 */
119 { 7, 5, 3, 2, 1, 0, 0 }, /* ATA_66 */
120 { 7, 5, 3, 2, 1, 0, 0 }, /* ATA_100a (730 specific),
121 different cycle_time range and offset */
122 { 11, 7, 5, 4, 2, 1, 0 }, /* ATA_100 */
123 { 15, 10, 7, 5, 3, 2, 1 }, /* ATA_133a (earliest 691 southbridges) */
124 { 15, 10, 7, 5, 3, 2, 1 }, /* ATA_133 */
125 };
126 /* CRC Valid Setup Time vary across IDE clock setting 33/66/100/133
127 See SiS962 data sheet for more detail */
128 static u8 cvs_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = {
129 { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */
130 { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */
131 { 2, 1, 1, 0, 0, 0, 0 },
132 { 4, 3, 2, 1, 0, 0, 0 },
133 { 4, 3, 2, 1, 0, 0, 0 },
134 { 6, 4, 3, 1, 1, 1, 0 },
135 { 9, 6, 4, 2, 2, 2, 2 },
136 { 9, 6, 4, 2, 2, 2, 2 },
137 };
138 /* Initialize time, Active time, Recovery time vary across
139 IDE clock settings. These 3 arrays hold the register value
140 for PIO0/1/2/3/4 and DMA0/1/2 mode in order */
141 static u8 ini_time_value[][8] = {
142 { 0, 0, 0, 0, 0, 0, 0, 0 },
143 { 0, 0, 0, 0, 0, 0, 0, 0 },
144 { 2, 1, 0, 0, 0, 1, 0, 0 },
145 { 4, 3, 1, 1, 1, 3, 1, 1 },
146 { 4, 3, 1, 1, 1, 3, 1, 1 },
147 { 6, 4, 2, 2, 2, 4, 2, 2 },
148 { 9, 6, 3, 3, 3, 6, 3, 3 },
149 { 9, 6, 3, 3, 3, 6, 3, 3 },
150 };
151 static u8 act_time_value[][8] = {
152 { 0, 0, 0, 0, 0, 0, 0, 0 },
153 { 0, 0, 0, 0, 0, 0, 0, 0 },
154 { 9, 9, 9, 2, 2, 7, 2, 2 },
155 { 19, 19, 19, 5, 4, 14, 5, 4 },
156 { 19, 19, 19, 5, 4, 14, 5, 4 },
157 { 28, 28, 28, 7, 6, 21, 7, 6 },
158 { 38, 38, 38, 10, 9, 28, 10, 9 },
159 { 38, 38, 38, 10, 9, 28, 10, 9 },
160 };
161 static u8 rco_time_value[][8] = {
162 { 0, 0, 0, 0, 0, 0, 0, 0 },
163 { 0, 0, 0, 0, 0, 0, 0, 0 },
164 { 9, 2, 0, 2, 0, 7, 1, 1 },
165 { 19, 5, 1, 5, 2, 16, 3, 2 },
166 { 19, 5, 1, 5, 2, 16, 3, 2 },
167 { 30, 9, 3, 9, 4, 25, 6, 4 },
168 { 40, 12, 4, 12, 5, 34, 12, 5 },
169 { 40, 12, 4, 12, 5, 34, 12, 5 },
170 };
171
172 /*
173 * Printing configuration
174 */
175 /* Used for chipset type printing at boot time */
176 static char *chipset_capability[] = {
177 "ATA", "ATA 16",
178 "ATA 33", "ATA 66",
179 "ATA 100 (1st gen)", "ATA 100 (2nd gen)",
180 "ATA 133 (1st gen)", "ATA 133 (2nd gen)"
181 };
182
183 /*
184 * Configuration functions
185 */
186
187 static u8 sis_ata133_get_base(ide_drive_t *drive)
188 {
189 struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
190 u32 reg54 = 0;
191
192 pci_read_config_dword(dev, 0x54, &reg54);
193
194 return ((reg54 & 0x40000000) ? 0x70 : 0x40) + drive->dn * 4;
195 }
196
197 static void sis_ata16_program_timings(ide_drive_t *drive, const u8 mode)
198 {
199 struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
200 u16 t1 = 0;
201 u8 drive_pci = 0x40 + drive->dn * 2;
202
203 const u16 pio_timings[] = { 0x000, 0x607, 0x404, 0x303, 0x301 };
204 const u16 mwdma_timings[] = { 0x008, 0x302, 0x301 };
205
206 pci_read_config_word(dev, drive_pci, &t1);
207
208 /* clear active/recovery timings */
209 t1 &= ~0x070f;
210 if (mode >= XFER_MW_DMA_0) {
211 if (chipset_family > ATA_16)
212 t1 &= ~0x8000; /* disable UDMA */
213 t1 |= mwdma_timings[mode - XFER_MW_DMA_0];
214 } else
215 t1 |= pio_timings[mode - XFER_PIO_0];
216
217 pci_write_config_word(dev, drive_pci, t1);
218 }
219
220 static void sis_ata100_program_timings(ide_drive_t *drive, const u8 mode)
221 {
222 struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
223 u8 t1, drive_pci = 0x40 + drive->dn * 2;
224
225 /* timing bits: 7:4 active 3:0 recovery */
226 const u8 pio_timings[] = { 0x00, 0x67, 0x44, 0x33, 0x31 };
227 const u8 mwdma_timings[] = { 0x08, 0x32, 0x31 };
228
229 if (mode >= XFER_MW_DMA_0) {
230 u8 t2 = 0;
231
232 pci_read_config_byte(dev, drive_pci, &t2);
233 t2 &= ~0x80; /* disable UDMA */
234 pci_write_config_byte(dev, drive_pci, t2);
235
236 t1 = mwdma_timings[mode - XFER_MW_DMA_0];
237 } else
238 t1 = pio_timings[mode - XFER_PIO_0];
239
240 pci_write_config_byte(dev, drive_pci + 1, t1);
241 }
242
243 static void sis_ata133_program_timings(ide_drive_t *drive, const u8 mode)
244 {
245 struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
246 u32 t1 = 0;
247 u8 drive_pci = sis_ata133_get_base(drive), clk, idx;
248
249 pci_read_config_dword(dev, drive_pci, &t1);
250
251 t1 &= 0xc0c00fff;
252 clk = (t1 & 0x08) ? ATA_133 : ATA_100;
253 if (mode >= XFER_MW_DMA_0) {
254 t1 &= ~0x04; /* disable UDMA */
255 idx = mode - XFER_MW_DMA_0 + 5;
256 } else
257 idx = mode - XFER_PIO_0;
258 t1 |= ini_time_value[clk][idx] << 12;
259 t1 |= act_time_value[clk][idx] << 16;
260 t1 |= rco_time_value[clk][idx] << 24;
261
262 pci_write_config_dword(dev, drive_pci, t1);
263 }
264
265 static void sis_program_timings(ide_drive_t *drive, const u8 mode)
266 {
267 if (chipset_family < ATA_100) /* ATA_16/33/66/100a */
268 sis_ata16_program_timings(drive, mode);
269 else if (chipset_family < ATA_133) /* ATA_100/133a */
270 sis_ata100_program_timings(drive, mode);
271 else /* ATA_133 */
272 sis_ata133_program_timings(drive, mode);
273 }
274
275 static void config_drive_art_rwp(ide_drive_t *drive)
276 {
277 ide_hwif_t *hwif = HWIF(drive);
278 struct pci_dev *dev = to_pci_dev(hwif->dev);
279 u8 reg4bh = 0;
280 u8 rw_prefetch = 0;
281
282 pci_read_config_byte(dev, 0x4b, &reg4bh);
283
284 if (drive->media == ide_disk)
285 rw_prefetch = 0x11 << drive->dn;
286
287 if ((reg4bh & (0x11 << drive->dn)) != rw_prefetch)
288 pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch);
289 }
290
291 static void sis_set_pio_mode(ide_drive_t *drive, const u8 pio)
292 {
293 config_drive_art_rwp(drive);
294 sis_program_timings(drive, XFER_PIO_0 + pio);
295 }
296
297 static void sis_ata133_program_udma_timings(ide_drive_t *drive, const u8 mode)
298 {
299 struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
300 u32 regdw = 0;
301 u8 drive_pci = sis_ata133_get_base(drive), clk, idx;
302
303 pci_read_config_dword(dev, drive_pci, &regdw);
304
305 regdw |= 0x04;
306 regdw &= 0xfffff00f;
307 /* check if ATA133 enable */
308 clk = (regdw & 0x08) ? ATA_133 : ATA_100;
309 idx = mode - XFER_UDMA_0;
310 regdw |= cycle_time_value[clk][idx] << 4;
311 regdw |= cvs_time_value[clk][idx] << 8;
312
313 pci_write_config_dword(dev, drive_pci, regdw);
314 }
315
316 static void sis_ata33_program_udma_timings(ide_drive_t *drive, const u8 mode)
317 {
318 struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
319 u8 drive_pci = 0x40 + drive->dn * 2, reg = 0, i = chipset_family;
320
321 pci_read_config_byte(dev, drive_pci + 1, &reg);
322
323 /* force the UDMA bit on if we want to use UDMA */
324 reg |= 0x80;
325 /* clean reg cycle time bits */
326 reg &= ~((0xff >> (8 - cycle_time_range[i])) << cycle_time_offset[i]);
327 /* set reg cycle time bits */
328 reg |= cycle_time_value[i][mode - XFER_UDMA_0] << cycle_time_offset[i];
329
330 pci_write_config_byte(dev, drive_pci + 1, reg);
331 }
332
333 static void sis_program_udma_timings(ide_drive_t *drive, const u8 mode)
334 {
335 if (chipset_family >= ATA_133) /* ATA_133 */
336 sis_ata133_program_udma_timings(drive, mode);
337 else /* ATA_33/66/100a/100/133a */
338 sis_ata33_program_udma_timings(drive, mode);
339 }
340
341 static void sis_set_dma_mode(ide_drive_t *drive, const u8 speed)
342 {
343 if (speed >= XFER_UDMA_0)
344 sis_program_udma_timings(drive, speed);
345 else
346 sis_program_timings(drive, speed);
347 }
348
349 static u8 sis_ata133_udma_filter(ide_drive_t *drive)
350 {
351 struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
352 u32 regdw = 0;
353 u8 drive_pci = sis_ata133_get_base(drive);
354
355 pci_read_config_dword(dev, drive_pci, &regdw);
356
357 /* if ATA133 disable, we should not set speed above UDMA5 */
358 return (regdw & 0x08) ? ATA_UDMA6 : ATA_UDMA5;
359 }
360
361 static int __devinit sis_find_family(struct pci_dev *dev)
362 {
363 struct pci_dev *host;
364 int i = 0;
365
366 chipset_family = 0;
367
368 for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !chipset_family; i++) {
369
370 host = pci_get_device(PCI_VENDOR_ID_SI, SiSHostChipInfo[i].host_id, NULL);
371
372 if (!host)
373 continue;
374
375 chipset_family = SiSHostChipInfo[i].chipset_family;
376
377 /* Special case for SiS630 : 630S/ET is ATA_100a */
378 if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) {
379 if (host->revision >= 0x30)
380 chipset_family = ATA_100a;
381 }
382 pci_dev_put(host);
383
384 printk(KERN_INFO DRV_NAME " %s: %s %s controller\n",
385 pci_name(dev), SiSHostChipInfo[i].name,
386 chipset_capability[chipset_family]);
387 }
388
389 if (!chipset_family) { /* Belongs to pci-quirks */
390
391 u32 idemisc;
392 u16 trueid;
393
394 /* Disable ID masking and register remapping */
395 pci_read_config_dword(dev, 0x54, &idemisc);
396 pci_write_config_dword(dev, 0x54, (idemisc & 0x7fffffff));
397 pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
398 pci_write_config_dword(dev, 0x54, idemisc);
399
400 if (trueid == 0x5518) {
401 printk(KERN_INFO DRV_NAME " %s: SiS 962/963 MuTIOL IDE UDMA133 controller\n",
402 pci_name(dev));
403 chipset_family = ATA_133;
404
405 /* Check for 5513 compability mapping
406 * We must use this, else the port enabled code will fail,
407 * as it expects the enablebits at 0x4a.
408 */
409 if ((idemisc & 0x40000000) == 0) {
410 pci_write_config_dword(dev, 0x54, idemisc | 0x40000000);
411 printk(KERN_INFO DRV_NAME " %s: Switching to 5513 register mapping\n",
412 pci_name(dev));
413 }
414 }
415 }
416
417 if (!chipset_family) { /* Belongs to pci-quirks */
418
419 struct pci_dev *lpc_bridge;
420 u16 trueid;
421 u8 prefctl;
422 u8 idecfg;
423
424 pci_read_config_byte(dev, 0x4a, &idecfg);
425 pci_write_config_byte(dev, 0x4a, idecfg | 0x10);
426 pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
427 pci_write_config_byte(dev, 0x4a, idecfg);
428
429 if (trueid == 0x5517) { /* SiS 961/961B */
430
431 lpc_bridge = pci_get_slot(dev->bus, 0x10); /* Bus 0, Dev 2, Fn 0 */
432 pci_read_config_byte(dev, 0x49, &prefctl);
433 pci_dev_put(lpc_bridge);
434
435 if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) {
436 printk(KERN_INFO DRV_NAME " %s: SiS 961B MuTIOL IDE UDMA133 controller\n",
437 pci_name(dev));
438 chipset_family = ATA_133a;
439 } else {
440 printk(KERN_INFO DRV_NAME " %s: SiS 961 MuTIOL IDE UDMA100 controller\n",
441 pci_name(dev));
442 chipset_family = ATA_100;
443 }
444 }
445 }
446
447 return chipset_family;
448 }
449
450 static unsigned int init_chipset_sis5513(struct pci_dev *dev)
451 {
452 /* Make general config ops here
453 1/ tell IDE channels to operate in Compatibility mode only
454 2/ tell old chips to allow per drive IDE timings */
455
456 u8 reg;
457 u16 regw;
458
459 switch (chipset_family) {
460 case ATA_133:
461 /* SiS962 operation mode */
462 pci_read_config_word(dev, 0x50, &regw);
463 if (regw & 0x08)
464 pci_write_config_word(dev, 0x50, regw&0xfff7);
465 pci_read_config_word(dev, 0x52, &regw);
466 if (regw & 0x08)
467 pci_write_config_word(dev, 0x52, regw&0xfff7);
468 break;
469 case ATA_133a:
470 case ATA_100:
471 /* Fixup latency */
472 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x80);
473 /* Set compatibility bit */
474 pci_read_config_byte(dev, 0x49, &reg);
475 if (!(reg & 0x01))
476 pci_write_config_byte(dev, 0x49, reg|0x01);
477 break;
478 case ATA_100a:
479 case ATA_66:
480 /* Fixup latency */
481 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x10);
482
483 /* On ATA_66 chips the bit was elsewhere */
484 pci_read_config_byte(dev, 0x52, &reg);
485 if (!(reg & 0x04))
486 pci_write_config_byte(dev, 0x52, reg|0x04);
487 break;
488 case ATA_33:
489 /* On ATA_33 we didn't have a single bit to set */
490 pci_read_config_byte(dev, 0x09, &reg);
491 if ((reg & 0x0f) != 0x00)
492 pci_write_config_byte(dev, 0x09, reg&0xf0);
493 case ATA_16:
494 /* force per drive recovery and active timings
495 needed on ATA_33 and below chips */
496 pci_read_config_byte(dev, 0x52, &reg);
497 if (!(reg & 0x08))
498 pci_write_config_byte(dev, 0x52, reg|0x08);
499 break;
500 }
501
502 return 0;
503 }
504
505 struct sis_laptop {
506 u16 device;
507 u16 subvendor;
508 u16 subdevice;
509 };
510
511 static const struct sis_laptop sis_laptop[] = {
512 /* devid, subvendor, subdev */
513 { 0x5513, 0x1043, 0x1107 }, /* ASUS A6K */
514 { 0x5513, 0x1734, 0x105f }, /* FSC Amilo A1630 */
515 { 0x5513, 0x1071, 0x8640 }, /* EasyNote K5305 */
516 /* end marker */
517 { 0, }
518 };
519
520 static u8 sis_cable_detect(ide_hwif_t *hwif)
521 {
522 struct pci_dev *pdev = to_pci_dev(hwif->dev);
523 const struct sis_laptop *lap = &sis_laptop[0];
524 u8 ata66 = 0;
525
526 while (lap->device) {
527 if (lap->device == pdev->device &&
528 lap->subvendor == pdev->subsystem_vendor &&
529 lap->subdevice == pdev->subsystem_device)
530 return ATA_CBL_PATA40_SHORT;
531 lap++;
532 }
533
534 if (chipset_family >= ATA_133) {
535 u16 regw = 0;
536 u16 reg_addr = hwif->channel ? 0x52: 0x50;
537 pci_read_config_word(pdev, reg_addr, &regw);
538 ata66 = (regw & 0x8000) ? 0 : 1;
539 } else if (chipset_family >= ATA_66) {
540 u8 reg48h = 0;
541 u8 mask = hwif->channel ? 0x20 : 0x10;
542 pci_read_config_byte(pdev, 0x48, &reg48h);
543 ata66 = (reg48h & mask) ? 0 : 1;
544 }
545
546 return ata66 ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
547 }
548
549 static const struct ide_port_ops sis_port_ops = {
550 .set_pio_mode = sis_set_pio_mode,
551 .set_dma_mode = sis_set_dma_mode,
552 .cable_detect = sis_cable_detect,
553 };
554
555 static const struct ide_port_ops sis_ata133_port_ops = {
556 .set_pio_mode = sis_set_pio_mode,
557 .set_dma_mode = sis_set_dma_mode,
558 .udma_filter = sis_ata133_udma_filter,
559 .cable_detect = sis_cable_detect,
560 };
561
562 static const struct ide_port_info sis5513_chipset __devinitdata = {
563 .name = DRV_NAME,
564 .init_chipset = init_chipset_sis5513,
565 .enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} },
566 .host_flags = IDE_HFLAG_LEGACY_IRQS | IDE_HFLAG_NO_AUTODMA,
567 .pio_mask = ATA_PIO4,
568 .mwdma_mask = ATA_MWDMA2,
569 };
570
571 static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id)
572 {
573 struct ide_port_info d = sis5513_chipset;
574 u8 udma_rates[] = { 0x00, 0x00, 0x07, 0x1f, 0x3f, 0x3f, 0x7f, 0x7f };
575 int rc;
576
577 rc = pci_enable_device(dev);
578 if (rc)
579 return rc;
580
581 if (sis_find_family(dev) == 0)
582 return -ENOTSUPP;
583
584 if (chipset_family >= ATA_133)
585 d.port_ops = &sis_ata133_port_ops;
586 else
587 d.port_ops = &sis_port_ops;
588
589 d.udma_mask = udma_rates[chipset_family];
590
591 return ide_pci_init_one(dev, &d, NULL);
592 }
593
594 static void __devexit sis5513_remove(struct pci_dev *dev)
595 {
596 ide_pci_remove(dev);
597 pci_disable_device(dev);
598 }
599
600 static const struct pci_device_id sis5513_pci_tbl[] = {
601 { PCI_VDEVICE(SI, PCI_DEVICE_ID_SI_5513), 0 },
602 { PCI_VDEVICE(SI, PCI_DEVICE_ID_SI_5518), 0 },
603 { PCI_VDEVICE(SI, PCI_DEVICE_ID_SI_1180), 0 },
604 { 0, },
605 };
606 MODULE_DEVICE_TABLE(pci, sis5513_pci_tbl);
607
608 static struct pci_driver sis5513_pci_driver = {
609 .name = "SIS_IDE",
610 .id_table = sis5513_pci_tbl,
611 .probe = sis5513_init_one,
612 .remove = __devexit_p(sis5513_remove),
613 .suspend = ide_pci_suspend,
614 .resume = ide_pci_resume,
615 };
616
617 static int __init sis5513_ide_init(void)
618 {
619 return ide_pci_register_driver(&sis5513_pci_driver);
620 }
621
622 static void __exit sis5513_ide_exit(void)
623 {
624 pci_unregister_driver(&sis5513_pci_driver);
625 }
626
627 module_init(sis5513_ide_init);
628 module_exit(sis5513_ide_exit);
629
630 MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik");
631 MODULE_DESCRIPTION("PCI driver module for SIS IDE");
632 MODULE_LICENSE("GPL");
633
634 /*
635 * TODO:
636 * - CLEANUP
637 * - More checks in the config registers (force values instead of
638 * relying on the BIOS setting them correctly).
639 * - Further optimisations ?
640 * . for example ATA66+ regs 0x48 & 0x4A
641 */
Support for the Chinese Samsung S3C2440 based development boards