Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/drivers/ide/pci/sis5513.c Version 0.16ac+vp Jun 18, 2003 | |
3 | * | |
4 | * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org> | |
5 | * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer | |
6 | * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz> | |
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 | ||
1da177e4 LT |
47 | #include <linux/types.h> |
48 | #include <linux/module.h> | |
49 | #include <linux/kernel.h> | |
50 | #include <linux/delay.h> | |
51 | #include <linux/timer.h> | |
52 | #include <linux/mm.h> | |
53 | #include <linux/ioport.h> | |
54 | #include <linux/blkdev.h> | |
55 | #include <linux/hdreg.h> | |
56 | ||
57 | #include <linux/interrupt.h> | |
58 | #include <linux/pci.h> | |
59 | #include <linux/init.h> | |
60 | #include <linux/ide.h> | |
61 | ||
62 | #include <asm/irq.h> | |
63 | ||
64 | #include "ide-timing.h" | |
65 | ||
66 | #define DISPLAY_SIS_TIMINGS | |
67 | ||
68 | /* registers layout and init values are chipset family dependant */ | |
69 | ||
70 | #define ATA_16 0x01 | |
71 | #define ATA_33 0x02 | |
72 | #define ATA_66 0x03 | |
73 | #define ATA_100a 0x04 // SiS730/SiS550 is ATA100 with ATA66 layout | |
74 | #define ATA_100 0x05 | |
75 | #define ATA_133a 0x06 // SiS961b with 133 support | |
76 | #define ATA_133 0x07 // SiS962/963 | |
77 | ||
78 | static u8 chipset_family; | |
79 | ||
80 | /* | |
81 | * Devices supported | |
82 | */ | |
83 | static const struct { | |
84 | const char *name; | |
85 | u16 host_id; | |
86 | u8 chipset_family; | |
87 | u8 flags; | |
88 | } SiSHostChipInfo[] = { | |
14351f8e | 89 | { "SiS965", PCI_DEVICE_ID_SI_965, ATA_133 }, |
1da177e4 LT |
90 | { "SiS745", PCI_DEVICE_ID_SI_745, ATA_100 }, |
91 | { "SiS735", PCI_DEVICE_ID_SI_735, ATA_100 }, | |
92 | { "SiS733", PCI_DEVICE_ID_SI_733, ATA_100 }, | |
93 | { "SiS635", PCI_DEVICE_ID_SI_635, ATA_100 }, | |
94 | { "SiS633", PCI_DEVICE_ID_SI_633, ATA_100 }, | |
95 | ||
96 | { "SiS730", PCI_DEVICE_ID_SI_730, ATA_100a }, | |
97 | { "SiS550", PCI_DEVICE_ID_SI_550, ATA_100a }, | |
98 | ||
99 | { "SiS640", PCI_DEVICE_ID_SI_640, ATA_66 }, | |
100 | { "SiS630", PCI_DEVICE_ID_SI_630, ATA_66 }, | |
101 | { "SiS620", PCI_DEVICE_ID_SI_620, ATA_66 }, | |
102 | { "SiS540", PCI_DEVICE_ID_SI_540, ATA_66 }, | |
103 | { "SiS530", PCI_DEVICE_ID_SI_530, ATA_66 }, | |
104 | ||
105 | { "SiS5600", PCI_DEVICE_ID_SI_5600, ATA_33 }, | |
106 | { "SiS5598", PCI_DEVICE_ID_SI_5598, ATA_33 }, | |
107 | { "SiS5597", PCI_DEVICE_ID_SI_5597, ATA_33 }, | |
108 | { "SiS5591/2", PCI_DEVICE_ID_SI_5591, ATA_33 }, | |
109 | { "SiS5582", PCI_DEVICE_ID_SI_5582, ATA_33 }, | |
110 | { "SiS5581", PCI_DEVICE_ID_SI_5581, ATA_33 }, | |
111 | ||
112 | { "SiS5596", PCI_DEVICE_ID_SI_5596, ATA_16 }, | |
113 | { "SiS5571", PCI_DEVICE_ID_SI_5571, ATA_16 }, | |
d266ab88 | 114 | { "SiS5517", PCI_DEVICE_ID_SI_5517, ATA_16 }, |
1da177e4 LT |
115 | { "SiS551x", PCI_DEVICE_ID_SI_5511, ATA_16 }, |
116 | }; | |
117 | ||
118 | /* Cycle time bits and values vary across chip dma capabilities | |
119 | These three arrays hold the register layout and the values to set. | |
120 | Indexed by chipset_family and (dma_mode - XFER_UDMA_0) */ | |
121 | ||
122 | /* {0, ATA_16, ATA_33, ATA_66, ATA_100a, ATA_100, ATA_133} */ | |
123 | static u8 cycle_time_offset[] = {0,0,5,4,4,0,0}; | |
124 | static u8 cycle_time_range[] = {0,0,2,3,3,4,4}; | |
125 | static u8 cycle_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = { | |
126 | {0,0,0,0,0,0,0}, /* no udma */ | |
127 | {0,0,0,0,0,0,0}, /* no udma */ | |
128 | {3,2,1,0,0,0,0}, /* ATA_33 */ | |
129 | {7,5,3,2,1,0,0}, /* ATA_66 */ | |
130 | {7,5,3,2,1,0,0}, /* ATA_100a (730 specific), differences are on cycle_time range and offset */ | |
131 | {11,7,5,4,2,1,0}, /* ATA_100 */ | |
132 | {15,10,7,5,3,2,1}, /* ATA_133a (earliest 691 southbridges) */ | |
133 | {15,10,7,5,3,2,1}, /* ATA_133 */ | |
134 | }; | |
135 | /* CRC Valid Setup Time vary across IDE clock setting 33/66/100/133 | |
136 | See SiS962 data sheet for more detail */ | |
137 | static u8 cvs_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = { | |
138 | {0,0,0,0,0,0,0}, /* no udma */ | |
139 | {0,0,0,0,0,0,0}, /* no udma */ | |
140 | {2,1,1,0,0,0,0}, | |
141 | {4,3,2,1,0,0,0}, | |
142 | {4,3,2,1,0,0,0}, | |
143 | {6,4,3,1,1,1,0}, | |
144 | {9,6,4,2,2,2,2}, | |
145 | {9,6,4,2,2,2,2}, | |
146 | }; | |
147 | /* Initialize time, Active time, Recovery time vary across | |
148 | IDE clock settings. These 3 arrays hold the register value | |
149 | for PIO0/1/2/3/4 and DMA0/1/2 mode in order */ | |
150 | static u8 ini_time_value[][8] = { | |
151 | {0,0,0,0,0,0,0,0}, | |
152 | {0,0,0,0,0,0,0,0}, | |
153 | {2,1,0,0,0,1,0,0}, | |
154 | {4,3,1,1,1,3,1,1}, | |
155 | {4,3,1,1,1,3,1,1}, | |
156 | {6,4,2,2,2,4,2,2}, | |
157 | {9,6,3,3,3,6,3,3}, | |
158 | {9,6,3,3,3,6,3,3}, | |
159 | }; | |
160 | static u8 act_time_value[][8] = { | |
161 | {0,0,0,0,0,0,0,0}, | |
162 | {0,0,0,0,0,0,0,0}, | |
163 | {9,9,9,2,2,7,2,2}, | |
164 | {19,19,19,5,4,14,5,4}, | |
165 | {19,19,19,5,4,14,5,4}, | |
166 | {28,28,28,7,6,21,7,6}, | |
167 | {38,38,38,10,9,28,10,9}, | |
168 | {38,38,38,10,9,28,10,9}, | |
169 | }; | |
170 | static u8 rco_time_value[][8] = { | |
171 | {0,0,0,0,0,0,0,0}, | |
172 | {0,0,0,0,0,0,0,0}, | |
173 | {9,2,0,2,0,7,1,1}, | |
174 | {19,5,1,5,2,16,3,2}, | |
175 | {19,5,1,5,2,16,3,2}, | |
176 | {30,9,3,9,4,25,6,4}, | |
177 | {40,12,4,12,5,34,12,5}, | |
178 | {40,12,4,12,5,34,12,5}, | |
179 | }; | |
180 | ||
181 | /* | |
182 | * Printing configuration | |
183 | */ | |
184 | /* Used for chipset type printing at boot time */ | |
185 | static char* chipset_capability[] = { | |
186 | "ATA", "ATA 16", | |
187 | "ATA 33", "ATA 66", | |
188 | "ATA 100 (1st gen)", "ATA 100 (2nd gen)", | |
189 | "ATA 133 (1st gen)", "ATA 133 (2nd gen)" | |
190 | }; | |
191 | ||
192 | #if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) | |
193 | #include <linux/stat.h> | |
194 | #include <linux/proc_fs.h> | |
195 | ||
196 | static u8 sis_proc = 0; | |
197 | ||
198 | static struct pci_dev *bmide_dev; | |
199 | ||
200 | static char* cable_type[] = { | |
201 | "80 pins", | |
202 | "40 pins" | |
203 | }; | |
204 | ||
205 | static char* recovery_time[] ={ | |
206 | "12 PCICLK", "1 PCICLK", | |
207 | "2 PCICLK", "3 PCICLK", | |
208 | "4 PCICLK", "5 PCICLCK", | |
209 | "6 PCICLK", "7 PCICLCK", | |
210 | "8 PCICLK", "9 PCICLCK", | |
211 | "10 PCICLK", "11 PCICLK", | |
212 | "13 PCICLK", "14 PCICLK", | |
213 | "15 PCICLK", "15 PCICLK" | |
214 | }; | |
215 | ||
216 | static char* active_time[] = { | |
217 | "8 PCICLK", "1 PCICLCK", | |
218 | "2 PCICLK", "3 PCICLK", | |
219 | "4 PCICLK", "5 PCICLK", | |
220 | "6 PCICLK", "12 PCICLK" | |
221 | }; | |
222 | ||
223 | static char* cycle_time[] = { | |
224 | "Reserved", "2 CLK", | |
225 | "3 CLK", "4 CLK", | |
226 | "5 CLK", "6 CLK", | |
227 | "7 CLK", "8 CLK", | |
228 | "9 CLK", "10 CLK", | |
229 | "11 CLK", "12 CLK", | |
230 | "13 CLK", "14 CLK", | |
231 | "15 CLK", "16 CLK" | |
232 | }; | |
233 | ||
234 | /* Generic add master or slave info function */ | |
235 | static char* get_drives_info (char *buffer, u8 pos) | |
236 | { | |
237 | u8 reg00, reg01, reg10, reg11; /* timing registers */ | |
238 | u32 regdw0, regdw1; | |
239 | char* p = buffer; | |
240 | ||
241 | /* Postwrite/Prefetch */ | |
242 | if (chipset_family < ATA_133) { | |
243 | pci_read_config_byte(bmide_dev, 0x4b, ®00); | |
244 | p += sprintf(p, "Drive %d: Postwrite %s \t \t Postwrite %s\n", | |
245 | pos, (reg00 & (0x10 << pos)) ? "Enabled" : "Disabled", | |
246 | (reg00 & (0x40 << pos)) ? "Enabled" : "Disabled"); | |
247 | p += sprintf(p, " Prefetch %s \t \t Prefetch %s\n", | |
248 | (reg00 & (0x01 << pos)) ? "Enabled" : "Disabled", | |
249 | (reg00 & (0x04 << pos)) ? "Enabled" : "Disabled"); | |
250 | pci_read_config_byte(bmide_dev, 0x40+2*pos, ®00); | |
251 | pci_read_config_byte(bmide_dev, 0x41+2*pos, ®01); | |
252 | pci_read_config_byte(bmide_dev, 0x44+2*pos, ®10); | |
253 | pci_read_config_byte(bmide_dev, 0x45+2*pos, ®11); | |
254 | } else { | |
255 | u32 reg54h; | |
256 | u8 drive_pci = 0x40; | |
257 | pci_read_config_dword(bmide_dev, 0x54, ®54h); | |
258 | if (reg54h & 0x40000000) { | |
259 | // Configuration space remapped to 0x70 | |
260 | drive_pci = 0x70; | |
261 | } | |
262 | pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos, ®dw0); | |
263 | pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos+8, ®dw1); | |
264 | ||
265 | p += sprintf(p, "Drive %d:\n", pos); | |
266 | } | |
267 | ||
268 | ||
269 | /* UDMA */ | |
270 | if (chipset_family >= ATA_133) { | |
271 | p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n", | |
272 | (regdw0 & 0x04) ? "Enabled" : "Disabled", | |
273 | (regdw1 & 0x04) ? "Enabled" : "Disabled"); | |
274 | p += sprintf(p, " UDMA Cycle Time %s \t UDMA Cycle Time %s\n", | |
275 | cycle_time[(regdw0 & 0xF0) >> 4], | |
276 | cycle_time[(regdw1 & 0xF0) >> 4]); | |
277 | } else if (chipset_family >= ATA_33) { | |
278 | p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n", | |
279 | (reg01 & 0x80) ? "Enabled" : "Disabled", | |
280 | (reg11 & 0x80) ? "Enabled" : "Disabled"); | |
281 | ||
282 | p += sprintf(p, " UDMA Cycle Time "); | |
283 | switch(chipset_family) { | |
284 | case ATA_33: p += sprintf(p, cycle_time[(reg01 & 0x60) >> 5]); break; | |
285 | case ATA_66: | |
286 | case ATA_100a: p += sprintf(p, cycle_time[(reg01 & 0x70) >> 4]); break; | |
287 | case ATA_100: | |
288 | case ATA_133a: p += sprintf(p, cycle_time[reg01 & 0x0F]); break; | |
289 | default: p += sprintf(p, "?"); break; | |
290 | } | |
291 | p += sprintf(p, " \t UDMA Cycle Time "); | |
292 | switch(chipset_family) { | |
293 | case ATA_33: p += sprintf(p, cycle_time[(reg11 & 0x60) >> 5]); break; | |
294 | case ATA_66: | |
295 | case ATA_100a: p += sprintf(p, cycle_time[(reg11 & 0x70) >> 4]); break; | |
296 | case ATA_100: | |
297 | case ATA_133a: p += sprintf(p, cycle_time[reg11 & 0x0F]); break; | |
298 | default: p += sprintf(p, "?"); break; | |
299 | } | |
300 | p += sprintf(p, "\n"); | |
301 | } | |
302 | ||
303 | ||
304 | if (chipset_family < ATA_133) { /* else case TODO */ | |
305 | ||
306 | /* Data Active */ | |
307 | p += sprintf(p, " Data Active Time "); | |
308 | switch(chipset_family) { | |
309 | case ATA_16: /* confirmed */ | |
310 | case ATA_33: | |
311 | case ATA_66: | |
312 | case ATA_100a: p += sprintf(p, active_time[reg01 & 0x07]); break; | |
313 | case ATA_100: | |
314 | case ATA_133a: p += sprintf(p, active_time[(reg00 & 0x70) >> 4]); break; | |
315 | default: p += sprintf(p, "?"); break; | |
316 | } | |
317 | p += sprintf(p, " \t Data Active Time "); | |
318 | switch(chipset_family) { | |
319 | case ATA_16: | |
320 | case ATA_33: | |
321 | case ATA_66: | |
322 | case ATA_100a: p += sprintf(p, active_time[reg11 & 0x07]); break; | |
323 | case ATA_100: | |
324 | case ATA_133a: p += sprintf(p, active_time[(reg10 & 0x70) >> 4]); break; | |
325 | default: p += sprintf(p, "?"); break; | |
326 | } | |
327 | p += sprintf(p, "\n"); | |
328 | ||
329 | /* Data Recovery */ | |
330 | /* warning: may need (reg&0x07) for pre ATA66 chips */ | |
331 | p += sprintf(p, " Data Recovery Time %s \t Data Recovery Time %s\n", | |
332 | recovery_time[reg00 & 0x0f], recovery_time[reg10 & 0x0f]); | |
333 | } | |
334 | ||
335 | return p; | |
336 | } | |
337 | ||
338 | static char* get_masters_info(char* buffer) | |
339 | { | |
340 | return get_drives_info(buffer, 0); | |
341 | } | |
342 | ||
343 | static char* get_slaves_info(char* buffer) | |
344 | { | |
345 | return get_drives_info(buffer, 1); | |
346 | } | |
347 | ||
348 | /* Main get_info, called on /proc/ide/sis reads */ | |
349 | static int sis_get_info (char *buffer, char **addr, off_t offset, int count) | |
350 | { | |
351 | char *p = buffer; | |
352 | int len; | |
353 | u8 reg; | |
354 | u16 reg2, reg3; | |
355 | ||
356 | p += sprintf(p, "\nSiS 5513 "); | |
357 | switch(chipset_family) { | |
358 | case ATA_16: p += sprintf(p, "DMA 16"); break; | |
359 | case ATA_33: p += sprintf(p, "Ultra 33"); break; | |
360 | case ATA_66: p += sprintf(p, "Ultra 66"); break; | |
361 | case ATA_100a: | |
362 | case ATA_100: p += sprintf(p, "Ultra 100"); break; | |
363 | case ATA_133a: | |
364 | case ATA_133: p += sprintf(p, "Ultra 133"); break; | |
365 | default: p+= sprintf(p, "Unknown???"); break; | |
366 | } | |
367 | p += sprintf(p, " chipset\n"); | |
368 | p += sprintf(p, "--------------- Primary Channel " | |
369 | "---------------- Secondary Channel " | |
370 | "-------------\n"); | |
371 | ||
372 | /* Status */ | |
373 | pci_read_config_byte(bmide_dev, 0x4a, ®); | |
374 | if (chipset_family == ATA_133) { | |
375 | pci_read_config_word(bmide_dev, 0x50, ®2); | |
376 | pci_read_config_word(bmide_dev, 0x52, ®3); | |
377 | } | |
378 | p += sprintf(p, "Channel Status: "); | |
379 | if (chipset_family < ATA_66) { | |
380 | p += sprintf(p, "%s \t \t \t \t %s\n", | |
381 | (reg & 0x04) ? "On" : "Off", | |
382 | (reg & 0x02) ? "On" : "Off"); | |
383 | } else if (chipset_family < ATA_133) { | |
384 | p += sprintf(p, "%s \t \t \t \t %s \n", | |
385 | (reg & 0x02) ? "On" : "Off", | |
386 | (reg & 0x04) ? "On" : "Off"); | |
387 | } else { /* ATA_133 */ | |
388 | p += sprintf(p, "%s \t \t \t \t %s \n", | |
389 | (reg2 & 0x02) ? "On" : "Off", | |
390 | (reg3 & 0x02) ? "On" : "Off"); | |
391 | } | |
392 | ||
393 | /* Operation Mode */ | |
394 | pci_read_config_byte(bmide_dev, 0x09, ®); | |
395 | p += sprintf(p, "Operation Mode: %s \t \t \t %s \n", | |
396 | (reg & 0x01) ? "Native" : "Compatible", | |
397 | (reg & 0x04) ? "Native" : "Compatible"); | |
398 | ||
399 | /* 80-pin cable ? */ | |
400 | if (chipset_family >= ATA_133) { | |
401 | p += sprintf(p, "Cable Type: %s \t \t \t %s\n", | |
402 | (reg2 & 0x01) ? cable_type[1] : cable_type[0], | |
403 | (reg3 & 0x01) ? cable_type[1] : cable_type[0]); | |
404 | } else if (chipset_family > ATA_33) { | |
405 | pci_read_config_byte(bmide_dev, 0x48, ®); | |
406 | p += sprintf(p, "Cable Type: %s \t \t \t %s\n", | |
407 | (reg & 0x10) ? cable_type[1] : cable_type[0], | |
408 | (reg & 0x20) ? cable_type[1] : cable_type[0]); | |
409 | } | |
410 | ||
411 | /* Prefetch Count */ | |
412 | if (chipset_family < ATA_133) { | |
413 | pci_read_config_word(bmide_dev, 0x4c, ®2); | |
414 | pci_read_config_word(bmide_dev, 0x4e, ®3); | |
415 | p += sprintf(p, "Prefetch Count: %d \t \t \t \t %d\n", | |
416 | reg2, reg3); | |
417 | } | |
418 | ||
419 | p = get_masters_info(p); | |
420 | p = get_slaves_info(p); | |
421 | ||
422 | len = (p - buffer) - offset; | |
423 | *addr = buffer + offset; | |
424 | ||
425 | return len > count ? count : len; | |
426 | } | |
427 | #endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) */ | |
428 | ||
429 | static u8 sis5513_ratemask (ide_drive_t *drive) | |
430 | { | |
431 | u8 rates[] = { 0, 0, 1, 2, 3, 3, 4, 4 }; | |
432 | u8 mode = rates[chipset_family]; | |
433 | ||
434 | if (!eighty_ninty_three(drive)) | |
435 | mode = min(mode, (u8)1); | |
436 | return mode; | |
437 | } | |
438 | ||
439 | /* | |
440 | * Configuration functions | |
441 | */ | |
442 | /* Enables per-drive prefetch and postwrite */ | |
443 | static void config_drive_art_rwp (ide_drive_t *drive) | |
444 | { | |
445 | ide_hwif_t *hwif = HWIF(drive); | |
446 | struct pci_dev *dev = hwif->pci_dev; | |
447 | ||
448 | u8 reg4bh = 0; | |
449 | u8 rw_prefetch = (0x11 << drive->dn); | |
450 | ||
451 | if (drive->media != ide_disk) | |
452 | return; | |
453 | pci_read_config_byte(dev, 0x4b, ®4bh); | |
454 | ||
455 | if ((reg4bh & rw_prefetch) != rw_prefetch) | |
456 | pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch); | |
457 | } | |
458 | ||
459 | ||
460 | /* Set per-drive active and recovery time */ | |
461 | static void config_art_rwp_pio (ide_drive_t *drive, u8 pio) | |
462 | { | |
463 | ide_hwif_t *hwif = HWIF(drive); | |
464 | struct pci_dev *dev = hwif->pci_dev; | |
465 | ||
466 | u8 timing, drive_pci, test1, test2; | |
467 | ||
468 | u16 eide_pio_timing[6] = {600, 390, 240, 180, 120, 90}; | |
469 | u16 xfer_pio = drive->id->eide_pio_modes; | |
470 | ||
471 | config_drive_art_rwp(drive); | |
472 | pio = ide_get_best_pio_mode(drive, 255, pio, NULL); | |
473 | ||
474 | if (xfer_pio> 4) | |
475 | xfer_pio = 0; | |
476 | ||
477 | if (drive->id->eide_pio_iordy > 0) { | |
478 | for (xfer_pio = 5; | |
479 | (xfer_pio > 0) && | |
480 | (drive->id->eide_pio_iordy > eide_pio_timing[xfer_pio]); | |
481 | xfer_pio--); | |
482 | } else { | |
483 | xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 : | |
484 | (drive->id->eide_pio_modes & 2) ? 0x04 : | |
485 | (drive->id->eide_pio_modes & 1) ? 0x03 : xfer_pio; | |
486 | } | |
487 | ||
488 | timing = (xfer_pio >= pio) ? xfer_pio : pio; | |
489 | ||
490 | /* In pre ATA_133 case, drives sit at 0x40 + 4*drive->dn */ | |
491 | drive_pci = 0x40; | |
492 | /* In SiS962 case drives sit at (0x40 or 0x70) + 8*drive->dn) */ | |
493 | if (chipset_family >= ATA_133) { | |
494 | u32 reg54h; | |
495 | pci_read_config_dword(dev, 0x54, ®54h); | |
496 | if (reg54h & 0x40000000) drive_pci = 0x70; | |
497 | drive_pci += ((drive->dn)*0x4); | |
498 | } else { | |
499 | drive_pci += ((drive->dn)*0x2); | |
500 | } | |
501 | ||
502 | /* register layout changed with newer ATA100 chips */ | |
503 | if (chipset_family < ATA_100) { | |
504 | pci_read_config_byte(dev, drive_pci, &test1); | |
505 | pci_read_config_byte(dev, drive_pci+1, &test2); | |
506 | ||
507 | /* Clear active and recovery timings */ | |
508 | test1 &= ~0x0F; | |
509 | test2 &= ~0x07; | |
510 | ||
511 | switch(timing) { | |
512 | case 4: test1 |= 0x01; test2 |= 0x03; break; | |
513 | case 3: test1 |= 0x03; test2 |= 0x03; break; | |
514 | case 2: test1 |= 0x04; test2 |= 0x04; break; | |
515 | case 1: test1 |= 0x07; test2 |= 0x06; break; | |
516 | default: break; | |
517 | } | |
518 | pci_write_config_byte(dev, drive_pci, test1); | |
519 | pci_write_config_byte(dev, drive_pci+1, test2); | |
520 | } else if (chipset_family < ATA_133) { | |
521 | switch(timing) { /* active recovery | |
522 | v v */ | |
523 | case 4: test1 = 0x30|0x01; break; | |
524 | case 3: test1 = 0x30|0x03; break; | |
525 | case 2: test1 = 0x40|0x04; break; | |
526 | case 1: test1 = 0x60|0x07; break; | |
d266ab88 | 527 | case 0: test1 = 0x00; break; |
1da177e4 LT |
528 | default: break; |
529 | } | |
530 | pci_write_config_byte(dev, drive_pci, test1); | |
531 | } else { /* ATA_133 */ | |
532 | u32 test3; | |
533 | pci_read_config_dword(dev, drive_pci, &test3); | |
534 | test3 &= 0xc0c00fff; | |
535 | if (test3 & 0x08) { | |
536 | test3 |= (unsigned long)ini_time_value[ATA_133][timing] << 12; | |
537 | test3 |= (unsigned long)act_time_value[ATA_133][timing] << 16; | |
538 | test3 |= (unsigned long)rco_time_value[ATA_133][timing] << 24; | |
539 | } else { | |
540 | test3 |= (unsigned long)ini_time_value[ATA_100][timing] << 12; | |
541 | test3 |= (unsigned long)act_time_value[ATA_100][timing] << 16; | |
542 | test3 |= (unsigned long)rco_time_value[ATA_100][timing] << 24; | |
543 | } | |
544 | pci_write_config_dword(dev, drive_pci, test3); | |
545 | } | |
546 | } | |
547 | ||
548 | static int config_chipset_for_pio (ide_drive_t *drive, u8 pio) | |
549 | { | |
550 | if (pio == 255) | |
551 | pio = ide_find_best_mode(drive, XFER_PIO | XFER_EPIO) - XFER_PIO_0; | |
552 | config_art_rwp_pio(drive, pio); | |
553 | return ide_config_drive_speed(drive, XFER_PIO_0 + min_t(u8, pio, 4)); | |
554 | } | |
555 | ||
556 | static int sis5513_tune_chipset (ide_drive_t *drive, u8 xferspeed) | |
557 | { | |
558 | ide_hwif_t *hwif = HWIF(drive); | |
559 | struct pci_dev *dev = hwif->pci_dev; | |
560 | ||
561 | u8 drive_pci, reg, speed; | |
562 | u32 regdw; | |
563 | ||
564 | speed = ide_rate_filter(sis5513_ratemask(drive), xferspeed); | |
565 | ||
566 | /* See config_art_rwp_pio for drive pci config registers */ | |
567 | drive_pci = 0x40; | |
568 | if (chipset_family >= ATA_133) { | |
569 | u32 reg54h; | |
570 | pci_read_config_dword(dev, 0x54, ®54h); | |
571 | if (reg54h & 0x40000000) drive_pci = 0x70; | |
572 | drive_pci += ((drive->dn)*0x4); | |
573 | pci_read_config_dword(dev, (unsigned long)drive_pci, ®dw); | |
574 | /* Disable UDMA bit for non UDMA modes on UDMA chips */ | |
575 | if (speed < XFER_UDMA_0) { | |
576 | regdw &= 0xfffffffb; | |
577 | pci_write_config_dword(dev, (unsigned long)drive_pci, regdw); | |
578 | } | |
579 | ||
580 | } else { | |
581 | drive_pci += ((drive->dn)*0x2); | |
582 | pci_read_config_byte(dev, drive_pci+1, ®); | |
583 | /* Disable UDMA bit for non UDMA modes on UDMA chips */ | |
584 | if ((speed < XFER_UDMA_0) && (chipset_family > ATA_16)) { | |
585 | reg &= 0x7F; | |
586 | pci_write_config_byte(dev, drive_pci+1, reg); | |
587 | } | |
588 | } | |
589 | ||
590 | /* Config chip for mode */ | |
591 | switch(speed) { | |
592 | case XFER_UDMA_6: | |
593 | case XFER_UDMA_5: | |
594 | case XFER_UDMA_4: | |
595 | case XFER_UDMA_3: | |
596 | case XFER_UDMA_2: | |
597 | case XFER_UDMA_1: | |
598 | case XFER_UDMA_0: | |
599 | if (chipset_family >= ATA_133) { | |
600 | regdw |= 0x04; | |
601 | regdw &= 0xfffff00f; | |
602 | /* check if ATA133 enable */ | |
603 | if (regdw & 0x08) { | |
604 | regdw |= (unsigned long)cycle_time_value[ATA_133][speed-XFER_UDMA_0] << 4; | |
605 | regdw |= (unsigned long)cvs_time_value[ATA_133][speed-XFER_UDMA_0] << 8; | |
606 | } else { | |
607 | /* if ATA133 disable, we should not set speed above UDMA5 */ | |
608 | if (speed > XFER_UDMA_5) | |
609 | speed = XFER_UDMA_5; | |
610 | regdw |= (unsigned long)cycle_time_value[ATA_100][speed-XFER_UDMA_0] << 4; | |
611 | regdw |= (unsigned long)cvs_time_value[ATA_100][speed-XFER_UDMA_0] << 8; | |
612 | } | |
613 | pci_write_config_dword(dev, (unsigned long)drive_pci, regdw); | |
614 | } else { | |
615 | /* Force the UDMA bit on if we want to use UDMA */ | |
616 | reg |= 0x80; | |
617 | /* clean reg cycle time bits */ | |
618 | reg &= ~((0xFF >> (8 - cycle_time_range[chipset_family])) | |
619 | << cycle_time_offset[chipset_family]); | |
620 | /* set reg cycle time bits */ | |
621 | reg |= cycle_time_value[chipset_family][speed-XFER_UDMA_0] | |
622 | << cycle_time_offset[chipset_family]; | |
623 | pci_write_config_byte(dev, drive_pci+1, reg); | |
624 | } | |
625 | break; | |
626 | case XFER_MW_DMA_2: | |
627 | case XFER_MW_DMA_1: | |
628 | case XFER_MW_DMA_0: | |
629 | case XFER_SW_DMA_2: | |
630 | case XFER_SW_DMA_1: | |
631 | case XFER_SW_DMA_0: | |
632 | break; | |
633 | case XFER_PIO_4: return((int) config_chipset_for_pio(drive, 4)); | |
634 | case XFER_PIO_3: return((int) config_chipset_for_pio(drive, 3)); | |
635 | case XFER_PIO_2: return((int) config_chipset_for_pio(drive, 2)); | |
636 | case XFER_PIO_1: return((int) config_chipset_for_pio(drive, 1)); | |
637 | case XFER_PIO_0: | |
638 | default: return((int) config_chipset_for_pio(drive, 0)); | |
639 | } | |
640 | ||
641 | return ((int) ide_config_drive_speed(drive, speed)); | |
642 | } | |
643 | ||
644 | static void sis5513_tune_drive (ide_drive_t *drive, u8 pio) | |
645 | { | |
646 | (void) config_chipset_for_pio(drive, pio); | |
647 | } | |
648 | ||
649 | /* | |
650 | * ((id->hw_config & 0x4000|0x2000) && (HWIF(drive)->udma_four)) | |
651 | */ | |
652 | static int config_chipset_for_dma (ide_drive_t *drive) | |
653 | { | |
654 | u8 speed = ide_dma_speed(drive, sis5513_ratemask(drive)); | |
655 | ||
656 | #ifdef DEBUG | |
657 | printk("SIS5513: config_chipset_for_dma, drive %d, ultra %x\n", | |
658 | drive->dn, drive->id->dma_ultra); | |
659 | #endif | |
660 | ||
661 | if (!(speed)) | |
662 | return 0; | |
663 | ||
664 | sis5513_tune_chipset(drive, speed); | |
665 | return ide_dma_enable(drive); | |
666 | } | |
667 | ||
668 | static int sis5513_config_drive_xfer_rate (ide_drive_t *drive) | |
669 | { | |
670 | ide_hwif_t *hwif = HWIF(drive); | |
671 | struct hd_driveid *id = drive->id; | |
672 | ||
673 | drive->init_speed = 0; | |
674 | ||
675 | if (id && (id->capability & 1) && drive->autodma) { | |
676 | ||
677 | if (ide_use_dma(drive)) { | |
678 | if (config_chipset_for_dma(drive)) | |
679 | return hwif->ide_dma_on(drive); | |
680 | } | |
681 | ||
682 | goto fast_ata_pio; | |
683 | ||
684 | } else if ((id->capability & 8) || (id->field_valid & 2)) { | |
685 | fast_ata_pio: | |
686 | sis5513_tune_drive(drive, 5); | |
687 | return hwif->ide_dma_off_quietly(drive); | |
688 | } | |
689 | /* IORDY not supported */ | |
690 | return 0; | |
691 | } | |
692 | ||
693 | /* initiates/aborts (U)DMA read/write operations on a drive. */ | |
694 | static int sis5513_config_xfer_rate (ide_drive_t *drive) | |
695 | { | |
696 | config_drive_art_rwp(drive); | |
697 | config_art_rwp_pio(drive, 5); | |
698 | return sis5513_config_drive_xfer_rate(drive); | |
699 | } | |
700 | ||
701 | /* | |
702 | Future simpler config_xfer_rate : | |
703 | When ide_find_best_mode is made bad-drive aware | |
704 | - remove config_drive_xfer_rate and config_chipset_for_dma, | |
705 | - replace config_xfer_rate with the following | |
706 | ||
707 | static int sis5513_config_xfer_rate (ide_drive_t *drive) | |
708 | { | |
709 | u16 w80 = HWIF(drive)->udma_four; | |
710 | u16 speed; | |
711 | ||
712 | config_drive_art_rwp(drive); | |
713 | config_art_rwp_pio(drive, 5); | |
714 | ||
715 | speed = ide_find_best_mode(drive, | |
716 | XFER_PIO | XFER_EPIO | XFER_SWDMA | XFER_MWDMA | | |
717 | (chipset_family >= ATA_33 ? XFER_UDMA : 0) | | |
718 | (w80 && chipset_family >= ATA_66 ? XFER_UDMA_66 : 0) | | |
719 | (w80 && chipset_family >= ATA_100a ? XFER_UDMA_100 : 0) | | |
720 | (w80 && chipset_family >= ATA_133a ? XFER_UDMA_133 : 0)); | |
721 | ||
722 | sis5513_tune_chipset(drive, speed); | |
723 | ||
724 | if (drive->autodma && (speed & XFER_MODE) != XFER_PIO) | |
725 | return HWIF(drive)->ide_dma_on(drive); | |
726 | return HWIF(drive)->ide_dma_off_quietly(drive); | |
727 | } | |
728 | */ | |
729 | ||
730 | /* Chip detection and general config */ | |
2b0c4bed | 731 | static unsigned int __devinit init_chipset_sis5513 (struct pci_dev *dev, const char *name) |
1da177e4 LT |
732 | { |
733 | struct pci_dev *host; | |
734 | int i = 0; | |
735 | ||
736 | chipset_family = 0; | |
737 | ||
738 | for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !chipset_family; i++) { | |
739 | ||
740 | host = pci_find_device(PCI_VENDOR_ID_SI, SiSHostChipInfo[i].host_id, NULL); | |
741 | ||
742 | if (!host) | |
743 | continue; | |
744 | ||
745 | chipset_family = SiSHostChipInfo[i].chipset_family; | |
746 | ||
747 | /* Special case for SiS630 : 630S/ET is ATA_100a */ | |
748 | if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) { | |
749 | u8 hostrev; | |
750 | pci_read_config_byte(host, PCI_REVISION_ID, &hostrev); | |
751 | if (hostrev >= 0x30) | |
752 | chipset_family = ATA_100a; | |
753 | } | |
754 | ||
755 | printk(KERN_INFO "SIS5513: %s %s controller\n", | |
756 | SiSHostChipInfo[i].name, chipset_capability[chipset_family]); | |
757 | } | |
758 | ||
759 | if (!chipset_family) { /* Belongs to pci-quirks */ | |
760 | ||
761 | u32 idemisc; | |
762 | u16 trueid; | |
763 | ||
764 | /* Disable ID masking and register remapping */ | |
765 | pci_read_config_dword(dev, 0x54, &idemisc); | |
766 | pci_write_config_dword(dev, 0x54, (idemisc & 0x7fffffff)); | |
767 | pci_read_config_word(dev, PCI_DEVICE_ID, &trueid); | |
768 | pci_write_config_dword(dev, 0x54, idemisc); | |
769 | ||
770 | if (trueid == 0x5518) { | |
771 | printk(KERN_INFO "SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller\n"); | |
772 | chipset_family = ATA_133; | |
773 | ||
774 | /* Check for 5513 compability mapping | |
775 | * We must use this, else the port enabled code will fail, | |
776 | * as it expects the enablebits at 0x4a. | |
777 | */ | |
778 | if ((idemisc & 0x40000000) == 0) { | |
779 | pci_write_config_dword(dev, 0x54, idemisc | 0x40000000); | |
780 | printk(KERN_INFO "SIS5513: Switching to 5513 register mapping\n"); | |
781 | } | |
782 | } | |
783 | } | |
784 | ||
785 | if (!chipset_family) { /* Belongs to pci-quirks */ | |
786 | ||
787 | struct pci_dev *lpc_bridge; | |
788 | u16 trueid; | |
789 | u8 prefctl; | |
790 | u8 idecfg; | |
791 | u8 sbrev; | |
792 | ||
793 | pci_read_config_byte(dev, 0x4a, &idecfg); | |
794 | pci_write_config_byte(dev, 0x4a, idecfg | 0x10); | |
795 | pci_read_config_word(dev, PCI_DEVICE_ID, &trueid); | |
796 | pci_write_config_byte(dev, 0x4a, idecfg); | |
797 | ||
798 | if (trueid == 0x5517) { /* SiS 961/961B */ | |
799 | ||
800 | lpc_bridge = pci_find_slot(0x00, 0x10); /* Bus 0, Dev 2, Fn 0 */ | |
801 | pci_read_config_byte(lpc_bridge, PCI_REVISION_ID, &sbrev); | |
802 | pci_read_config_byte(dev, 0x49, &prefctl); | |
803 | ||
804 | if (sbrev == 0x10 && (prefctl & 0x80)) { | |
805 | printk(KERN_INFO "SIS5513: SiS 961B MuTIOL IDE UDMA133 controller\n"); | |
806 | chipset_family = ATA_133a; | |
807 | } else { | |
808 | printk(KERN_INFO "SIS5513: SiS 961 MuTIOL IDE UDMA100 controller\n"); | |
809 | chipset_family = ATA_100; | |
810 | } | |
811 | } | |
812 | } | |
813 | ||
814 | if (!chipset_family) | |
815 | return -1; | |
816 | ||
817 | /* Make general config ops here | |
818 | 1/ tell IDE channels to operate in Compatibility mode only | |
819 | 2/ tell old chips to allow per drive IDE timings */ | |
820 | ||
821 | { | |
822 | u8 reg; | |
823 | u16 regw; | |
824 | ||
825 | switch(chipset_family) { | |
826 | case ATA_133: | |
827 | /* SiS962 operation mode */ | |
828 | pci_read_config_word(dev, 0x50, ®w); | |
829 | if (regw & 0x08) | |
830 | pci_write_config_word(dev, 0x50, regw&0xfff7); | |
831 | pci_read_config_word(dev, 0x52, ®w); | |
832 | if (regw & 0x08) | |
833 | pci_write_config_word(dev, 0x52, regw&0xfff7); | |
834 | break; | |
835 | case ATA_133a: | |
836 | case ATA_100: | |
837 | /* Fixup latency */ | |
838 | pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x80); | |
839 | /* Set compatibility bit */ | |
840 | pci_read_config_byte(dev, 0x49, ®); | |
841 | if (!(reg & 0x01)) { | |
842 | pci_write_config_byte(dev, 0x49, reg|0x01); | |
843 | } | |
844 | break; | |
845 | case ATA_100a: | |
846 | case ATA_66: | |
847 | /* Fixup latency */ | |
848 | pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x10); | |
849 | ||
850 | /* On ATA_66 chips the bit was elsewhere */ | |
851 | pci_read_config_byte(dev, 0x52, ®); | |
852 | if (!(reg & 0x04)) { | |
853 | pci_write_config_byte(dev, 0x52, reg|0x04); | |
854 | } | |
855 | break; | |
856 | case ATA_33: | |
857 | /* On ATA_33 we didn't have a single bit to set */ | |
858 | pci_read_config_byte(dev, 0x09, ®); | |
859 | if ((reg & 0x0f) != 0x00) { | |
860 | pci_write_config_byte(dev, 0x09, reg&0xf0); | |
861 | } | |
862 | case ATA_16: | |
863 | /* force per drive recovery and active timings | |
864 | needed on ATA_33 and below chips */ | |
865 | pci_read_config_byte(dev, 0x52, ®); | |
866 | if (!(reg & 0x08)) { | |
867 | pci_write_config_byte(dev, 0x52, reg|0x08); | |
868 | } | |
869 | break; | |
870 | } | |
871 | ||
872 | #if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) | |
873 | if (!sis_proc) { | |
874 | sis_proc = 1; | |
875 | bmide_dev = dev; | |
876 | ide_pci_create_host_proc("sis", sis_get_info); | |
877 | } | |
878 | #endif | |
879 | } | |
880 | ||
881 | return 0; | |
882 | } | |
883 | ||
2b0c4bed | 884 | static unsigned int __devinit ata66_sis5513 (ide_hwif_t *hwif) |
1da177e4 LT |
885 | { |
886 | u8 ata66 = 0; | |
887 | ||
888 | if (chipset_family >= ATA_133) { | |
889 | u16 regw = 0; | |
890 | u16 reg_addr = hwif->channel ? 0x52: 0x50; | |
891 | pci_read_config_word(hwif->pci_dev, reg_addr, ®w); | |
892 | ata66 = (regw & 0x8000) ? 0 : 1; | |
893 | } else if (chipset_family >= ATA_66) { | |
894 | u8 reg48h = 0; | |
895 | u8 mask = hwif->channel ? 0x20 : 0x10; | |
896 | pci_read_config_byte(hwif->pci_dev, 0x48, ®48h); | |
897 | ata66 = (reg48h & mask) ? 0 : 1; | |
898 | } | |
899 | return ata66; | |
900 | } | |
901 | ||
2b0c4bed | 902 | static void __devinit init_hwif_sis5513 (ide_hwif_t *hwif) |
1da177e4 LT |
903 | { |
904 | hwif->autodma = 0; | |
905 | ||
906 | if (!hwif->irq) | |
907 | hwif->irq = hwif->channel ? 15 : 14; | |
908 | ||
909 | hwif->tuneproc = &sis5513_tune_drive; | |
910 | hwif->speedproc = &sis5513_tune_chipset; | |
911 | ||
912 | if (!(hwif->dma_base)) { | |
913 | hwif->drives[0].autotune = 1; | |
914 | hwif->drives[1].autotune = 1; | |
915 | return; | |
916 | } | |
917 | ||
918 | hwif->atapi_dma = 1; | |
919 | hwif->ultra_mask = 0x7f; | |
920 | hwif->mwdma_mask = 0x07; | |
921 | hwif->swdma_mask = 0x07; | |
922 | ||
923 | if (!chipset_family) | |
924 | return; | |
925 | ||
926 | if (!(hwif->udma_four)) | |
927 | hwif->udma_four = ata66_sis5513(hwif); | |
928 | ||
929 | if (chipset_family > ATA_16) { | |
930 | hwif->ide_dma_check = &sis5513_config_xfer_rate; | |
931 | if (!noautodma) | |
932 | hwif->autodma = 1; | |
933 | } | |
934 | hwif->drives[0].autodma = hwif->autodma; | |
935 | hwif->drives[1].autodma = hwif->autodma; | |
936 | return; | |
937 | } | |
938 | ||
939 | static ide_pci_device_t sis5513_chipset __devinitdata = { | |
940 | .name = "SIS5513", | |
941 | .init_chipset = init_chipset_sis5513, | |
942 | .init_hwif = init_hwif_sis5513, | |
943 | .channels = 2, | |
944 | .autodma = NOAUTODMA, | |
945 | .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, | |
946 | .bootable = ON_BOARD, | |
947 | }; | |
948 | ||
949 | static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id) | |
950 | { | |
951 | return ide_setup_pci_device(dev, &sis5513_chipset); | |
952 | } | |
953 | ||
954 | static struct pci_device_id sis5513_pci_tbl[] = { | |
955 | { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
956 | { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5518, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
957 | { 0, }, | |
958 | }; | |
959 | MODULE_DEVICE_TABLE(pci, sis5513_pci_tbl); | |
960 | ||
961 | static struct pci_driver driver = { | |
962 | .name = "SIS_IDE", | |
963 | .id_table = sis5513_pci_tbl, | |
964 | .probe = sis5513_init_one, | |
965 | }; | |
966 | ||
967 | static int sis5513_ide_init(void) | |
968 | { | |
969 | return ide_pci_register_driver(&driver); | |
970 | } | |
971 | ||
972 | module_init(sis5513_ide_init); | |
973 | ||
974 | MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik"); | |
975 | MODULE_DESCRIPTION("PCI driver module for SIS IDE"); | |
976 | MODULE_LICENSE("GPL"); | |
977 | ||
978 | /* | |
979 | * TODO: | |
980 | * - CLEANUP | |
981 | * - Use drivers/ide/ide-timing.h ! | |
982 | * - More checks in the config registers (force values instead of | |
983 | * relying on the BIOS setting them correctly). | |
984 | * - Further optimisations ? | |
985 | * . for example ATA66+ regs 0x48 & 0x4A | |
986 | */ |