Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
a488f34e | 2 | * linux/drivers/ide/pci/hpt366.c Version 1.24 Dec 8, 2007 |
1da177e4 LT |
3 | * |
4 | * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org> | |
5 | * Portions Copyright (C) 2001 Sun Microsystems, Inc. | |
6 | * Portions Copyright (C) 2003 Red Hat Inc | |
fbf47840 | 7 | * Portions Copyright (C) 2007 Bartlomiej Zolnierkiewicz |
38b66f84 | 8 | * Portions Copyright (C) 2005-2007 MontaVista Software, Inc. |
1da177e4 LT |
9 | * |
10 | * Thanks to HighPoint Technologies for their assistance, and hardware. | |
11 | * Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his | |
12 | * donation of an ABit BP6 mainboard, processor, and memory acellerated | |
13 | * development and support. | |
14 | * | |
b39b01ff | 15 | * |
836c0063 SS |
16 | * HighPoint has its own drivers (open source except for the RAID part) |
17 | * available from http://www.highpoint-tech.com/BIOS%20+%20Driver/. | |
18 | * This may be useful to anyone wanting to work on this driver, however do not | |
19 | * trust them too much since the code tends to become less and less meaningful | |
20 | * as the time passes... :-/ | |
b39b01ff | 21 | * |
1da177e4 LT |
22 | * Note that final HPT370 support was done by force extraction of GPL. |
23 | * | |
24 | * - add function for getting/setting power status of drive | |
25 | * - the HPT370's state machine can get confused. reset it before each dma | |
26 | * xfer to prevent that from happening. | |
27 | * - reset state engine whenever we get an error. | |
28 | * - check for busmaster state at end of dma. | |
29 | * - use new highpoint timings. | |
30 | * - detect bus speed using highpoint register. | |
31 | * - use pll if we don't have a clock table. added a 66MHz table that's | |
32 | * just 2x the 33MHz table. | |
33 | * - removed turnaround. NOTE: we never want to switch between pll and | |
34 | * pci clocks as the chip can glitch in those cases. the highpoint | |
35 | * approved workaround slows everything down too much to be useful. in | |
36 | * addition, we would have to serialize access to each chip. | |
37 | * Adrian Sun <a.sun@sun.com> | |
38 | * | |
39 | * add drive timings for 66MHz PCI bus, | |
40 | * fix ATA Cable signal detection, fix incorrect /proc info | |
41 | * add /proc display for per-drive PIO/DMA/UDMA mode and | |
42 | * per-channel ATA-33/66 Cable detect. | |
43 | * Duncan Laurie <void@sun.com> | |
44 | * | |
45 | * fixup /proc output for multiple controllers | |
46 | * Tim Hockin <thockin@sun.com> | |
47 | * | |
48 | * On hpt366: | |
49 | * Reset the hpt366 on error, reset on dma | |
50 | * Fix disabling Fast Interrupt hpt366. | |
51 | * Mike Waychison <crlf@sun.com> | |
52 | * | |
53 | * Added support for 372N clocking and clock switching. The 372N needs | |
54 | * different clocks on read/write. This requires overloading rw_disk and | |
55 | * other deeply crazy things. Thanks to <http://www.hoerstreich.de> for | |
56 | * keeping me sane. | |
57 | * Alan Cox <alan@redhat.com> | |
58 | * | |
836c0063 SS |
59 | * - fix the clock turnaround code: it was writing to the wrong ports when |
60 | * called for the secondary channel, caching the current clock mode per- | |
61 | * channel caused the cached register value to get out of sync with the | |
62 | * actual one, the channels weren't serialized, the turnaround shouldn't | |
63 | * be done on 66 MHz PCI bus | |
7b73ee05 SS |
64 | * - disable UltraATA/100 for HPT370 by default as the 33 MHz clock being used |
65 | * does not allow for this speed anyway | |
66 | * - avoid touching disabled channels (e.g. HPT371/N are single channel chips, | |
67 | * their primary channel is kind of virtual, it isn't tied to any pins) | |
471a0bda SS |
68 | * - fix/remove bad/unused timing tables and use one set of tables for the whole |
69 | * HPT37x chip family; save space by introducing the separate transfer mode | |
70 | * table in which the mode lookup is done | |
26c068da | 71 | * - use f_CNT value saved by the HighPoint BIOS as reading it directly gives |
72931368 SS |
72 | * the wrong PCI frequency since DPLL has already been calibrated by BIOS; |
73 | * read it only from the function 0 of HPT374 chips | |
33b18a60 SS |
74 | * - fix the hotswap code: it caused RESET- to glitch when tristating the bus, |
75 | * and for HPT36x the obsolete HDIO_TRISTATE_HWIF handler was called instead | |
73d1dd93 SS |
76 | * - pass to init_chipset() handlers a copy of the IDE PCI device structure as |
77 | * they tamper with its fields | |
7b73ee05 SS |
78 | * - pass to the init_setup handlers a copy of the ide_pci_device_t structure |
79 | * since they may tamper with its fields | |
90778574 SS |
80 | * - prefix the driver startup messages with the real chip name |
81 | * - claim the extra 240 bytes of I/O space for all chips | |
2648e5d9 | 82 | * - optimize the UltraDMA filtering and the drive list lookup code |
b4586715 | 83 | * - use pci_get_slot() to get to the function 1 of HPT36x/374 |
7b73ee05 SS |
84 | * - cache offset of the channel's misc. control registers (MCRs) being used |
85 | * throughout the driver | |
86 | * - only touch the relevant MCR when detecting the cable type on HPT374's | |
87 | * function 1 | |
abc4ad4c | 88 | * - rename all the register related variables consistently |
7b73ee05 SS |
89 | * - move all the interrupt twiddling code from the speedproc handlers into |
90 | * init_hwif_hpt366(), also grouping all the DMA related code together there | |
91 | * - merge two HPT37x speedproc handlers, fix the PIO timing register mask and | |
92 | * separate the UltraDMA and MWDMA masks there to avoid changing PIO timings | |
93 | * when setting an UltraDMA mode | |
94 | * - fix hpt3xx_tune_drive() to set the PIO mode requested, not always select | |
95 | * the best possible one | |
4bf63de2 | 96 | * - clean up DMA timeout handling for HPT370 |
7b73ee05 SS |
97 | * - switch to using the enumeration type to differ between the numerous chip |
98 | * variants, matching PCI device/revision ID with the chip type early, at the | |
99 | * init_setup stage | |
100 | * - extend the hpt_info structure to hold the DPLL and PCI clock frequencies, | |
101 | * stop duplicating it for each channel by storing the pointer in the pci_dev | |
102 | * structure: first, at the init_setup stage, point it to a static "template" | |
103 | * with only the chip type and its specific base DPLL frequency, the highest | |
2648e5d9 SS |
104 | * UltraDMA mode, and the chip settings table pointer filled, then, at the |
105 | * init_chipset stage, allocate per-chip instance and fill it with the rest | |
106 | * of the necessary information | |
7b73ee05 SS |
107 | * - get rid of the constant thresholds in the HPT37x PCI clock detection code, |
108 | * switch to calculating PCI clock frequency based on the chip's base DPLL | |
109 | * frequency | |
110 | * - switch to using the DPLL clock and enable UltraATA/133 mode by default on | |
278978e9 SS |
111 | * anything newer than HPT370/A (except HPT374 that is not capable of this |
112 | * mode according to the manual) | |
6273d26a SS |
113 | * - fold PCI clock detection and DPLL setup code into init_chipset_hpt366(), |
114 | * also fixing the interchanged 25/40 MHz PCI clock cases for HPT36x chips; | |
7b73ee05 SS |
115 | * unify HPT36x/37x timing setup code and the speedproc handlers by joining |
116 | * the register setting lists into the table indexed by the clock selected | |
2648e5d9 | 117 | * - set the correct hwif->ultra_mask for each individual chip |
b4e44369 | 118 | * - add Ultra and MW DMA mode filtering for the HPT37[24] based SATA cards |
7b73ee05 | 119 | * Sergei Shtylyov, <sshtylyov@ru.mvista.com> or <source@mvista.com> |
1da177e4 LT |
120 | */ |
121 | ||
1da177e4 LT |
122 | #include <linux/types.h> |
123 | #include <linux/module.h> | |
124 | #include <linux/kernel.h> | |
125 | #include <linux/delay.h> | |
126 | #include <linux/timer.h> | |
127 | #include <linux/mm.h> | |
128 | #include <linux/ioport.h> | |
129 | #include <linux/blkdev.h> | |
130 | #include <linux/hdreg.h> | |
131 | ||
132 | #include <linux/interrupt.h> | |
133 | #include <linux/pci.h> | |
134 | #include <linux/init.h> | |
135 | #include <linux/ide.h> | |
136 | ||
137 | #include <asm/uaccess.h> | |
138 | #include <asm/io.h> | |
139 | #include <asm/irq.h> | |
140 | ||
141 | /* various tuning parameters */ | |
142 | #define HPT_RESET_STATE_ENGINE | |
836c0063 SS |
143 | #undef HPT_DELAY_INTERRUPT |
144 | #define HPT_SERIALIZE_IO 0 | |
1da177e4 LT |
145 | |
146 | static const char *quirk_drives[] = { | |
147 | "QUANTUM FIREBALLlct08 08", | |
148 | "QUANTUM FIREBALLP KA6.4", | |
149 | "QUANTUM FIREBALLP LM20.4", | |
150 | "QUANTUM FIREBALLP LM20.5", | |
151 | NULL | |
152 | }; | |
153 | ||
154 | static const char *bad_ata100_5[] = { | |
155 | "IBM-DTLA-307075", | |
156 | "IBM-DTLA-307060", | |
157 | "IBM-DTLA-307045", | |
158 | "IBM-DTLA-307030", | |
159 | "IBM-DTLA-307020", | |
160 | "IBM-DTLA-307015", | |
161 | "IBM-DTLA-305040", | |
162 | "IBM-DTLA-305030", | |
163 | "IBM-DTLA-305020", | |
164 | "IC35L010AVER07-0", | |
165 | "IC35L020AVER07-0", | |
166 | "IC35L030AVER07-0", | |
167 | "IC35L040AVER07-0", | |
168 | "IC35L060AVER07-0", | |
169 | "WDC AC310200R", | |
170 | NULL | |
171 | }; | |
172 | ||
173 | static const char *bad_ata66_4[] = { | |
174 | "IBM-DTLA-307075", | |
175 | "IBM-DTLA-307060", | |
176 | "IBM-DTLA-307045", | |
177 | "IBM-DTLA-307030", | |
178 | "IBM-DTLA-307020", | |
179 | "IBM-DTLA-307015", | |
180 | "IBM-DTLA-305040", | |
181 | "IBM-DTLA-305030", | |
182 | "IBM-DTLA-305020", | |
183 | "IC35L010AVER07-0", | |
184 | "IC35L020AVER07-0", | |
185 | "IC35L030AVER07-0", | |
186 | "IC35L040AVER07-0", | |
187 | "IC35L060AVER07-0", | |
188 | "WDC AC310200R", | |
783353b1 | 189 | "MAXTOR STM3320620A", |
1da177e4 LT |
190 | NULL |
191 | }; | |
192 | ||
193 | static const char *bad_ata66_3[] = { | |
194 | "WDC AC310200R", | |
195 | NULL | |
196 | }; | |
197 | ||
198 | static const char *bad_ata33[] = { | |
199 | "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2", | |
200 | "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2", | |
201 | "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4", | |
202 | "Maxtor 90510D4", | |
203 | "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2", | |
204 | "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4", | |
205 | "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2", | |
206 | NULL | |
207 | }; | |
208 | ||
471a0bda SS |
209 | static u8 xfer_speeds[] = { |
210 | XFER_UDMA_6, | |
211 | XFER_UDMA_5, | |
212 | XFER_UDMA_4, | |
213 | XFER_UDMA_3, | |
214 | XFER_UDMA_2, | |
215 | XFER_UDMA_1, | |
216 | XFER_UDMA_0, | |
217 | ||
218 | XFER_MW_DMA_2, | |
219 | XFER_MW_DMA_1, | |
220 | XFER_MW_DMA_0, | |
221 | ||
222 | XFER_PIO_4, | |
223 | XFER_PIO_3, | |
224 | XFER_PIO_2, | |
225 | XFER_PIO_1, | |
226 | XFER_PIO_0 | |
1da177e4 LT |
227 | }; |
228 | ||
471a0bda SS |
229 | /* Key for bus clock timings |
230 | * 36x 37x | |
231 | * bits bits | |
232 | * 0:3 0:3 data_high_time. Inactive time of DIOW_/DIOR_ for PIO and MW DMA. | |
233 | * cycles = value + 1 | |
234 | * 4:7 4:8 data_low_time. Active time of DIOW_/DIOR_ for PIO and MW DMA. | |
235 | * cycles = value + 1 | |
236 | * 8:11 9:12 cmd_high_time. Inactive time of DIOW_/DIOR_ during task file | |
237 | * register access. | |
238 | * 12:15 13:17 cmd_low_time. Active time of DIOW_/DIOR_ during task file | |
239 | * register access. | |
240 | * 16:18 18:20 udma_cycle_time. Clock cycles for UDMA xfer. | |
241 | * - 21 CLK frequency: 0=ATA clock, 1=dual ATA clock. | |
242 | * 19:21 22:24 pre_high_time. Time to initialize the 1st cycle for PIO and | |
243 | * MW DMA xfer. | |
244 | * 22:24 25:27 cmd_pre_high_time. Time to initialize the 1st PIO cycle for | |
245 | * task file register access. | |
246 | * 28 28 UDMA enable. | |
247 | * 29 29 DMA enable. | |
248 | * 30 30 PIO MST enable. If set, the chip is in bus master mode during | |
249 | * PIO xfer. | |
250 | * 31 31 FIFO enable. | |
1da177e4 | 251 | */ |
1da177e4 | 252 | |
471a0bda SS |
253 | static u32 forty_base_hpt36x[] = { |
254 | /* XFER_UDMA_6 */ 0x900fd943, | |
255 | /* XFER_UDMA_5 */ 0x900fd943, | |
256 | /* XFER_UDMA_4 */ 0x900fd943, | |
257 | /* XFER_UDMA_3 */ 0x900ad943, | |
258 | /* XFER_UDMA_2 */ 0x900bd943, | |
259 | /* XFER_UDMA_1 */ 0x9008d943, | |
260 | /* XFER_UDMA_0 */ 0x9008d943, | |
261 | ||
262 | /* XFER_MW_DMA_2 */ 0xa008d943, | |
263 | /* XFER_MW_DMA_1 */ 0xa010d955, | |
264 | /* XFER_MW_DMA_0 */ 0xa010d9fc, | |
265 | ||
266 | /* XFER_PIO_4 */ 0xc008d963, | |
267 | /* XFER_PIO_3 */ 0xc010d974, | |
268 | /* XFER_PIO_2 */ 0xc010d997, | |
269 | /* XFER_PIO_1 */ 0xc010d9c7, | |
270 | /* XFER_PIO_0 */ 0xc018d9d9 | |
1da177e4 LT |
271 | }; |
272 | ||
471a0bda SS |
273 | static u32 thirty_three_base_hpt36x[] = { |
274 | /* XFER_UDMA_6 */ 0x90c9a731, | |
275 | /* XFER_UDMA_5 */ 0x90c9a731, | |
276 | /* XFER_UDMA_4 */ 0x90c9a731, | |
277 | /* XFER_UDMA_3 */ 0x90cfa731, | |
278 | /* XFER_UDMA_2 */ 0x90caa731, | |
279 | /* XFER_UDMA_1 */ 0x90cba731, | |
280 | /* XFER_UDMA_0 */ 0x90c8a731, | |
281 | ||
282 | /* XFER_MW_DMA_2 */ 0xa0c8a731, | |
283 | /* XFER_MW_DMA_1 */ 0xa0c8a732, /* 0xa0c8a733 */ | |
284 | /* XFER_MW_DMA_0 */ 0xa0c8a797, | |
285 | ||
286 | /* XFER_PIO_4 */ 0xc0c8a731, | |
287 | /* XFER_PIO_3 */ 0xc0c8a742, | |
288 | /* XFER_PIO_2 */ 0xc0d0a753, | |
289 | /* XFER_PIO_1 */ 0xc0d0a7a3, /* 0xc0d0a793 */ | |
290 | /* XFER_PIO_0 */ 0xc0d0a7aa /* 0xc0d0a7a7 */ | |
1da177e4 LT |
291 | }; |
292 | ||
471a0bda SS |
293 | static u32 twenty_five_base_hpt36x[] = { |
294 | /* XFER_UDMA_6 */ 0x90c98521, | |
295 | /* XFER_UDMA_5 */ 0x90c98521, | |
296 | /* XFER_UDMA_4 */ 0x90c98521, | |
297 | /* XFER_UDMA_3 */ 0x90cf8521, | |
298 | /* XFER_UDMA_2 */ 0x90cf8521, | |
299 | /* XFER_UDMA_1 */ 0x90cb8521, | |
300 | /* XFER_UDMA_0 */ 0x90cb8521, | |
301 | ||
302 | /* XFER_MW_DMA_2 */ 0xa0ca8521, | |
303 | /* XFER_MW_DMA_1 */ 0xa0ca8532, | |
304 | /* XFER_MW_DMA_0 */ 0xa0ca8575, | |
305 | ||
306 | /* XFER_PIO_4 */ 0xc0ca8521, | |
307 | /* XFER_PIO_3 */ 0xc0ca8532, | |
308 | /* XFER_PIO_2 */ 0xc0ca8542, | |
309 | /* XFER_PIO_1 */ 0xc0d08572, | |
310 | /* XFER_PIO_0 */ 0xc0d08585 | |
1da177e4 LT |
311 | }; |
312 | ||
809b53c4 SS |
313 | #if 0 |
314 | /* These are the timing tables from the HighPoint open source drivers... */ | |
471a0bda SS |
315 | static u32 thirty_three_base_hpt37x[] = { |
316 | /* XFER_UDMA_6 */ 0x12446231, /* 0x12646231 ?? */ | |
317 | /* XFER_UDMA_5 */ 0x12446231, | |
318 | /* XFER_UDMA_4 */ 0x12446231, | |
319 | /* XFER_UDMA_3 */ 0x126c6231, | |
320 | /* XFER_UDMA_2 */ 0x12486231, | |
321 | /* XFER_UDMA_1 */ 0x124c6233, | |
322 | /* XFER_UDMA_0 */ 0x12506297, | |
323 | ||
324 | /* XFER_MW_DMA_2 */ 0x22406c31, | |
325 | /* XFER_MW_DMA_1 */ 0x22406c33, | |
326 | /* XFER_MW_DMA_0 */ 0x22406c97, | |
327 | ||
328 | /* XFER_PIO_4 */ 0x06414e31, | |
329 | /* XFER_PIO_3 */ 0x06414e42, | |
330 | /* XFER_PIO_2 */ 0x06414e53, | |
331 | /* XFER_PIO_1 */ 0x06814e93, | |
332 | /* XFER_PIO_0 */ 0x06814ea7 | |
1da177e4 LT |
333 | }; |
334 | ||
471a0bda SS |
335 | static u32 fifty_base_hpt37x[] = { |
336 | /* XFER_UDMA_6 */ 0x12848242, | |
337 | /* XFER_UDMA_5 */ 0x12848242, | |
338 | /* XFER_UDMA_4 */ 0x12ac8242, | |
339 | /* XFER_UDMA_3 */ 0x128c8242, | |
340 | /* XFER_UDMA_2 */ 0x120c8242, | |
341 | /* XFER_UDMA_1 */ 0x12148254, | |
342 | /* XFER_UDMA_0 */ 0x121882ea, | |
343 | ||
344 | /* XFER_MW_DMA_2 */ 0x22808242, | |
345 | /* XFER_MW_DMA_1 */ 0x22808254, | |
346 | /* XFER_MW_DMA_0 */ 0x228082ea, | |
347 | ||
348 | /* XFER_PIO_4 */ 0x0a81f442, | |
349 | /* XFER_PIO_3 */ 0x0a81f443, | |
350 | /* XFER_PIO_2 */ 0x0a81f454, | |
351 | /* XFER_PIO_1 */ 0x0ac1f465, | |
352 | /* XFER_PIO_0 */ 0x0ac1f48a | |
1da177e4 LT |
353 | }; |
354 | ||
471a0bda SS |
355 | static u32 sixty_six_base_hpt37x[] = { |
356 | /* XFER_UDMA_6 */ 0x1c869c62, | |
357 | /* XFER_UDMA_5 */ 0x1cae9c62, /* 0x1c8a9c62 */ | |
358 | /* XFER_UDMA_4 */ 0x1c8a9c62, | |
359 | /* XFER_UDMA_3 */ 0x1c8e9c62, | |
360 | /* XFER_UDMA_2 */ 0x1c929c62, | |
361 | /* XFER_UDMA_1 */ 0x1c9a9c62, | |
362 | /* XFER_UDMA_0 */ 0x1c829c62, | |
363 | ||
364 | /* XFER_MW_DMA_2 */ 0x2c829c62, | |
365 | /* XFER_MW_DMA_1 */ 0x2c829c66, | |
366 | /* XFER_MW_DMA_0 */ 0x2c829d2e, | |
367 | ||
368 | /* XFER_PIO_4 */ 0x0c829c62, | |
369 | /* XFER_PIO_3 */ 0x0c829c84, | |
370 | /* XFER_PIO_2 */ 0x0c829ca6, | |
371 | /* XFER_PIO_1 */ 0x0d029d26, | |
372 | /* XFER_PIO_0 */ 0x0d029d5e | |
1da177e4 | 373 | }; |
809b53c4 SS |
374 | #else |
375 | /* | |
376 | * The following are the new timing tables with PIO mode data/taskfile transfer | |
377 | * overclocking fixed... | |
378 | */ | |
379 | ||
380 | /* This table is taken from the HPT370 data manual rev. 1.02 */ | |
381 | static u32 thirty_three_base_hpt37x[] = { | |
382 | /* XFER_UDMA_6 */ 0x16455031, /* 0x16655031 ?? */ | |
383 | /* XFER_UDMA_5 */ 0x16455031, | |
384 | /* XFER_UDMA_4 */ 0x16455031, | |
385 | /* XFER_UDMA_3 */ 0x166d5031, | |
386 | /* XFER_UDMA_2 */ 0x16495031, | |
387 | /* XFER_UDMA_1 */ 0x164d5033, | |
388 | /* XFER_UDMA_0 */ 0x16515097, | |
389 | ||
390 | /* XFER_MW_DMA_2 */ 0x26515031, | |
391 | /* XFER_MW_DMA_1 */ 0x26515033, | |
392 | /* XFER_MW_DMA_0 */ 0x26515097, | |
393 | ||
394 | /* XFER_PIO_4 */ 0x06515021, | |
395 | /* XFER_PIO_3 */ 0x06515022, | |
396 | /* XFER_PIO_2 */ 0x06515033, | |
397 | /* XFER_PIO_1 */ 0x06915065, | |
398 | /* XFER_PIO_0 */ 0x06d1508a | |
399 | }; | |
400 | ||
401 | static u32 fifty_base_hpt37x[] = { | |
402 | /* XFER_UDMA_6 */ 0x1a861842, | |
403 | /* XFER_UDMA_5 */ 0x1a861842, | |
404 | /* XFER_UDMA_4 */ 0x1aae1842, | |
405 | /* XFER_UDMA_3 */ 0x1a8e1842, | |
406 | /* XFER_UDMA_2 */ 0x1a0e1842, | |
407 | /* XFER_UDMA_1 */ 0x1a161854, | |
408 | /* XFER_UDMA_0 */ 0x1a1a18ea, | |
409 | ||
410 | /* XFER_MW_DMA_2 */ 0x2a821842, | |
411 | /* XFER_MW_DMA_1 */ 0x2a821854, | |
412 | /* XFER_MW_DMA_0 */ 0x2a8218ea, | |
413 | ||
414 | /* XFER_PIO_4 */ 0x0a821842, | |
415 | /* XFER_PIO_3 */ 0x0a821843, | |
416 | /* XFER_PIO_2 */ 0x0a821855, | |
417 | /* XFER_PIO_1 */ 0x0ac218a8, | |
418 | /* XFER_PIO_0 */ 0x0b02190c | |
419 | }; | |
420 | ||
421 | static u32 sixty_six_base_hpt37x[] = { | |
422 | /* XFER_UDMA_6 */ 0x1c86fe62, | |
423 | /* XFER_UDMA_5 */ 0x1caefe62, /* 0x1c8afe62 */ | |
424 | /* XFER_UDMA_4 */ 0x1c8afe62, | |
425 | /* XFER_UDMA_3 */ 0x1c8efe62, | |
426 | /* XFER_UDMA_2 */ 0x1c92fe62, | |
427 | /* XFER_UDMA_1 */ 0x1c9afe62, | |
428 | /* XFER_UDMA_0 */ 0x1c82fe62, | |
429 | ||
430 | /* XFER_MW_DMA_2 */ 0x2c82fe62, | |
431 | /* XFER_MW_DMA_1 */ 0x2c82fe66, | |
432 | /* XFER_MW_DMA_0 */ 0x2c82ff2e, | |
433 | ||
434 | /* XFER_PIO_4 */ 0x0c82fe62, | |
435 | /* XFER_PIO_3 */ 0x0c82fe84, | |
436 | /* XFER_PIO_2 */ 0x0c82fea6, | |
437 | /* XFER_PIO_1 */ 0x0d02ff26, | |
438 | /* XFER_PIO_0 */ 0x0d42ff7f | |
439 | }; | |
440 | #endif | |
1da177e4 | 441 | |
1da177e4 | 442 | #define HPT366_DEBUG_DRIVE_INFO 0 |
7b73ee05 SS |
443 | #define HPT371_ALLOW_ATA133_6 1 |
444 | #define HPT302_ALLOW_ATA133_6 1 | |
445 | #define HPT372_ALLOW_ATA133_6 1 | |
e139b0b0 | 446 | #define HPT370_ALLOW_ATA100_5 0 |
1da177e4 LT |
447 | #define HPT366_ALLOW_ATA66_4 1 |
448 | #define HPT366_ALLOW_ATA66_3 1 | |
449 | #define HPT366_MAX_DEVS 8 | |
450 | ||
7b73ee05 SS |
451 | /* Supported ATA clock frequencies */ |
452 | enum ata_clock { | |
453 | ATA_CLOCK_25MHZ, | |
454 | ATA_CLOCK_33MHZ, | |
455 | ATA_CLOCK_40MHZ, | |
456 | ATA_CLOCK_50MHZ, | |
457 | ATA_CLOCK_66MHZ, | |
458 | NUM_ATA_CLOCKS | |
459 | }; | |
1da177e4 | 460 | |
b39b01ff | 461 | /* |
7b73ee05 | 462 | * Hold all the HighPoint chip information in one place. |
b39b01ff | 463 | */ |
1da177e4 | 464 | |
7b73ee05 | 465 | struct hpt_info { |
fbf47840 | 466 | char *chip_name; /* Chip name */ |
7b73ee05 | 467 | u8 chip_type; /* Chip type */ |
fbf47840 | 468 | u8 udma_mask; /* Allowed UltraDMA modes mask. */ |
7b73ee05 SS |
469 | u8 dpll_clk; /* DPLL clock in MHz */ |
470 | u8 pci_clk; /* PCI clock in MHz */ | |
471 | u32 **settings; /* Chipset settings table */ | |
b39b01ff AC |
472 | }; |
473 | ||
7b73ee05 SS |
474 | /* Supported HighPoint chips */ |
475 | enum { | |
476 | HPT36x, | |
477 | HPT370, | |
478 | HPT370A, | |
479 | HPT374, | |
480 | HPT372, | |
481 | HPT372A, | |
482 | HPT302, | |
483 | HPT371, | |
484 | HPT372N, | |
485 | HPT302N, | |
486 | HPT371N | |
487 | }; | |
b39b01ff | 488 | |
7b73ee05 SS |
489 | static u32 *hpt36x_settings[NUM_ATA_CLOCKS] = { |
490 | twenty_five_base_hpt36x, | |
491 | thirty_three_base_hpt36x, | |
492 | forty_base_hpt36x, | |
493 | NULL, | |
494 | NULL | |
495 | }; | |
e139b0b0 | 496 | |
7b73ee05 SS |
497 | static u32 *hpt37x_settings[NUM_ATA_CLOCKS] = { |
498 | NULL, | |
499 | thirty_three_base_hpt37x, | |
500 | NULL, | |
501 | fifty_base_hpt37x, | |
502 | sixty_six_base_hpt37x | |
503 | }; | |
1da177e4 | 504 | |
282037f1 | 505 | static const struct hpt_info hpt36x __devinitdata = { |
fbf47840 | 506 | .chip_name = "HPT36x", |
7b73ee05 | 507 | .chip_type = HPT36x, |
fbf47840 | 508 | .udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2, |
7b73ee05 SS |
509 | .dpll_clk = 0, /* no DPLL */ |
510 | .settings = hpt36x_settings | |
511 | }; | |
512 | ||
282037f1 | 513 | static const struct hpt_info hpt370 __devinitdata = { |
fbf47840 | 514 | .chip_name = "HPT370", |
7b73ee05 | 515 | .chip_type = HPT370, |
fbf47840 | 516 | .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4, |
7b73ee05 SS |
517 | .dpll_clk = 48, |
518 | .settings = hpt37x_settings | |
519 | }; | |
520 | ||
282037f1 | 521 | static const struct hpt_info hpt370a __devinitdata = { |
fbf47840 | 522 | .chip_name = "HPT370A", |
7b73ee05 | 523 | .chip_type = HPT370A, |
fbf47840 | 524 | .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4, |
7b73ee05 SS |
525 | .dpll_clk = 48, |
526 | .settings = hpt37x_settings | |
527 | }; | |
528 | ||
282037f1 | 529 | static const struct hpt_info hpt374 __devinitdata = { |
fbf47840 | 530 | .chip_name = "HPT374", |
7b73ee05 | 531 | .chip_type = HPT374, |
fbf47840 | 532 | .udma_mask = ATA_UDMA5, |
7b73ee05 SS |
533 | .dpll_clk = 48, |
534 | .settings = hpt37x_settings | |
535 | }; | |
536 | ||
282037f1 | 537 | static const struct hpt_info hpt372 __devinitdata = { |
fbf47840 | 538 | .chip_name = "HPT372", |
7b73ee05 | 539 | .chip_type = HPT372, |
fbf47840 | 540 | .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, |
7b73ee05 SS |
541 | .dpll_clk = 55, |
542 | .settings = hpt37x_settings | |
543 | }; | |
544 | ||
282037f1 | 545 | static const struct hpt_info hpt372a __devinitdata = { |
fbf47840 | 546 | .chip_name = "HPT372A", |
7b73ee05 | 547 | .chip_type = HPT372A, |
fbf47840 | 548 | .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, |
7b73ee05 SS |
549 | .dpll_clk = 66, |
550 | .settings = hpt37x_settings | |
551 | }; | |
552 | ||
282037f1 | 553 | static const struct hpt_info hpt302 __devinitdata = { |
fbf47840 | 554 | .chip_name = "HPT302", |
7b73ee05 | 555 | .chip_type = HPT302, |
fbf47840 | 556 | .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, |
7b73ee05 SS |
557 | .dpll_clk = 66, |
558 | .settings = hpt37x_settings | |
559 | }; | |
560 | ||
282037f1 | 561 | static const struct hpt_info hpt371 __devinitdata = { |
fbf47840 | 562 | .chip_name = "HPT371", |
7b73ee05 | 563 | .chip_type = HPT371, |
fbf47840 | 564 | .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, |
7b73ee05 SS |
565 | .dpll_clk = 66, |
566 | .settings = hpt37x_settings | |
567 | }; | |
568 | ||
282037f1 | 569 | static const struct hpt_info hpt372n __devinitdata = { |
fbf47840 | 570 | .chip_name = "HPT372N", |
7b73ee05 | 571 | .chip_type = HPT372N, |
fbf47840 | 572 | .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, |
7b73ee05 SS |
573 | .dpll_clk = 77, |
574 | .settings = hpt37x_settings | |
575 | }; | |
576 | ||
282037f1 | 577 | static const struct hpt_info hpt302n __devinitdata = { |
fbf47840 | 578 | .chip_name = "HPT302N", |
7b73ee05 | 579 | .chip_type = HPT302N, |
fbf47840 | 580 | .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, |
7b73ee05 | 581 | .dpll_clk = 77, |
38b66f84 | 582 | .settings = hpt37x_settings |
7b73ee05 SS |
583 | }; |
584 | ||
282037f1 | 585 | static const struct hpt_info hpt371n __devinitdata = { |
fbf47840 | 586 | .chip_name = "HPT371N", |
7b73ee05 | 587 | .chip_type = HPT371N, |
fbf47840 | 588 | .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, |
7b73ee05 SS |
589 | .dpll_clk = 77, |
590 | .settings = hpt37x_settings | |
591 | }; | |
1da177e4 | 592 | |
e139b0b0 SS |
593 | static int check_in_drive_list(ide_drive_t *drive, const char **list) |
594 | { | |
595 | struct hd_driveid *id = drive->id; | |
596 | ||
597 | while (*list) | |
598 | if (!strcmp(*list++,id->model)) | |
599 | return 1; | |
600 | return 0; | |
601 | } | |
1da177e4 | 602 | |
1da177e4 | 603 | /* |
2808b0a9 SS |
604 | * The Marvell bridge chips used on the HighPoint SATA cards do not seem |
605 | * to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes... | |
1da177e4 | 606 | */ |
2d5eaa6d BZ |
607 | |
608 | static u8 hpt3xx_udma_filter(ide_drive_t *drive) | |
1da177e4 | 609 | { |
2808b0a9 SS |
610 | ide_hwif_t *hwif = HWIF(drive); |
611 | struct hpt_info *info = pci_get_drvdata(hwif->pci_dev); | |
612 | u8 mask = hwif->ultra_mask; | |
1da177e4 | 613 | |
2648e5d9 | 614 | switch (info->chip_type) { |
2648e5d9 SS |
615 | case HPT36x: |
616 | if (!HPT366_ALLOW_ATA66_4 || | |
617 | check_in_drive_list(drive, bad_ata66_4)) | |
2808b0a9 | 618 | mask = ATA_UDMA3; |
7b73ee05 | 619 | |
2648e5d9 SS |
620 | if (!HPT366_ALLOW_ATA66_3 || |
621 | check_in_drive_list(drive, bad_ata66_3)) | |
2808b0a9 | 622 | mask = ATA_UDMA2; |
2648e5d9 | 623 | break; |
2808b0a9 SS |
624 | case HPT370: |
625 | if (!HPT370_ALLOW_ATA100_5 || | |
626 | check_in_drive_list(drive, bad_ata100_5)) | |
627 | mask = ATA_UDMA4; | |
628 | break; | |
629 | case HPT370A: | |
630 | if (!HPT370_ALLOW_ATA100_5 || | |
631 | check_in_drive_list(drive, bad_ata100_5)) | |
632 | return ATA_UDMA4; | |
633 | case HPT372 : | |
634 | case HPT372A: | |
635 | case HPT372N: | |
636 | case HPT374 : | |
637 | if (ide_dev_is_sata(drive->id)) | |
638 | mask &= ~0x0e; | |
639 | /* Fall thru */ | |
2648e5d9 | 640 | default: |
2808b0a9 | 641 | return mask; |
1da177e4 | 642 | } |
2648e5d9 SS |
643 | |
644 | return check_in_drive_list(drive, bad_ata33) ? 0x00 : mask; | |
1da177e4 LT |
645 | } |
646 | ||
b4e44369 SS |
647 | static u8 hpt3xx_mdma_filter(ide_drive_t *drive) |
648 | { | |
649 | ide_hwif_t *hwif = HWIF(drive); | |
650 | struct hpt_info *info = pci_get_drvdata(hwif->pci_dev); | |
651 | ||
652 | switch (info->chip_type) { | |
653 | case HPT372 : | |
654 | case HPT372A: | |
655 | case HPT372N: | |
656 | case HPT374 : | |
657 | if (ide_dev_is_sata(drive->id)) | |
658 | return 0x00; | |
659 | /* Fall thru */ | |
660 | default: | |
661 | return 0x07; | |
662 | } | |
663 | } | |
664 | ||
7b73ee05 | 665 | static u32 get_speed_setting(u8 speed, struct hpt_info *info) |
1da177e4 | 666 | { |
471a0bda SS |
667 | int i; |
668 | ||
669 | /* | |
670 | * Lookup the transfer mode table to get the index into | |
671 | * the timing table. | |
672 | * | |
673 | * NOTE: For XFER_PIO_SLOW, PIO mode 0 timings will be used. | |
674 | */ | |
675 | for (i = 0; i < ARRAY_SIZE(xfer_speeds) - 1; i++) | |
676 | if (xfer_speeds[i] == speed) | |
677 | break; | |
7b73ee05 SS |
678 | /* |
679 | * NOTE: info->settings only points to the pointer | |
680 | * to the list of the actual register values | |
681 | */ | |
682 | return (*info->settings)[i]; | |
1da177e4 LT |
683 | } |
684 | ||
88b2b32b | 685 | static void hpt36x_set_mode(ide_drive_t *drive, const u8 speed) |
1da177e4 | 686 | { |
abc4ad4c SS |
687 | ide_hwif_t *hwif = HWIF(drive); |
688 | struct pci_dev *dev = hwif->pci_dev; | |
7b73ee05 | 689 | struct hpt_info *info = pci_get_drvdata(dev); |
abc4ad4c | 690 | u8 itr_addr = drive->dn ? 0x44 : 0x40; |
26ccb802 | 691 | u32 old_itr = 0; |
ceb1b2c5 SS |
692 | u32 new_itr = get_speed_setting(speed, info); |
693 | u32 itr_mask = speed < XFER_MW_DMA_0 ? 0xc1f8ffff : | |
694 | (speed < XFER_UDMA_0 ? 0x303800ff : | |
695 | 0x30070000); | |
b39b01ff | 696 | |
ceb1b2c5 SS |
697 | pci_read_config_dword(dev, itr_addr, &old_itr); |
698 | new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask); | |
1da177e4 | 699 | /* |
abc4ad4c SS |
700 | * Disable on-chip PIO FIFO/buffer (and PIO MST mode as well) |
701 | * to avoid problems handling I/O errors later | |
1da177e4 | 702 | */ |
abc4ad4c | 703 | new_itr &= ~0xc0000000; |
1da177e4 | 704 | |
abc4ad4c | 705 | pci_write_config_dword(dev, itr_addr, new_itr); |
1da177e4 LT |
706 | } |
707 | ||
88b2b32b | 708 | static void hpt37x_set_mode(ide_drive_t *drive, const u8 speed) |
1da177e4 | 709 | { |
abc4ad4c SS |
710 | ide_hwif_t *hwif = HWIF(drive); |
711 | struct pci_dev *dev = hwif->pci_dev; | |
7b73ee05 | 712 | struct hpt_info *info = pci_get_drvdata(dev); |
abc4ad4c | 713 | u8 itr_addr = 0x40 + (drive->dn * 4); |
26ccb802 | 714 | u32 old_itr = 0; |
ceb1b2c5 SS |
715 | u32 new_itr = get_speed_setting(speed, info); |
716 | u32 itr_mask = speed < XFER_MW_DMA_0 ? 0xcfc3ffff : | |
717 | (speed < XFER_UDMA_0 ? 0x31c001ff : | |
718 | 0x303c0000); | |
1da177e4 | 719 | |
abc4ad4c | 720 | pci_read_config_dword(dev, itr_addr, &old_itr); |
ceb1b2c5 SS |
721 | new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask); |
722 | ||
b39b01ff | 723 | if (speed < XFER_MW_DMA_0) |
abc4ad4c SS |
724 | new_itr &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */ |
725 | pci_write_config_dword(dev, itr_addr, new_itr); | |
1da177e4 LT |
726 | } |
727 | ||
26bcb879 | 728 | static void hpt3xx_set_pio_mode(ide_drive_t *drive, const u8 pio) |
1da177e4 | 729 | { |
a488f34e | 730 | HWIF(drive)->set_dma_mode(drive, XFER_PIO_0 + pio); |
1da177e4 LT |
731 | } |
732 | ||
e139b0b0 | 733 | static int hpt3xx_quirkproc(ide_drive_t *drive) |
1da177e4 | 734 | { |
e139b0b0 SS |
735 | struct hd_driveid *id = drive->id; |
736 | const char **list = quirk_drives; | |
737 | ||
738 | while (*list) | |
739 | if (strstr(id->model, *list++)) | |
740 | return 1; | |
741 | return 0; | |
1da177e4 LT |
742 | } |
743 | ||
26ccb802 | 744 | static void hpt3xx_intrproc(ide_drive_t *drive) |
1da177e4 | 745 | { |
1da177e4 LT |
746 | if (drive->quirk_list) |
747 | return; | |
31e8a465 | 748 | |
1da177e4 | 749 | /* drives in the quirk_list may not like intr setups/cleanups */ |
31e8a465 | 750 | outb(drive->ctl | 2, IDE_CONTROL_REG); |
1da177e4 LT |
751 | } |
752 | ||
26ccb802 | 753 | static void hpt3xx_maskproc(ide_drive_t *drive, int mask) |
1da177e4 | 754 | { |
abc4ad4c SS |
755 | ide_hwif_t *hwif = HWIF(drive); |
756 | struct pci_dev *dev = hwif->pci_dev; | |
7b73ee05 | 757 | struct hpt_info *info = pci_get_drvdata(dev); |
1da177e4 LT |
758 | |
759 | if (drive->quirk_list) { | |
7b73ee05 | 760 | if (info->chip_type >= HPT370) { |
abc4ad4c SS |
761 | u8 scr1 = 0; |
762 | ||
763 | pci_read_config_byte(dev, 0x5a, &scr1); | |
764 | if (((scr1 & 0x10) >> 4) != mask) { | |
765 | if (mask) | |
766 | scr1 |= 0x10; | |
767 | else | |
768 | scr1 &= ~0x10; | |
769 | pci_write_config_byte(dev, 0x5a, scr1); | |
770 | } | |
1da177e4 | 771 | } else { |
abc4ad4c | 772 | if (mask) |
b39b01ff | 773 | disable_irq(hwif->irq); |
abc4ad4c SS |
774 | else |
775 | enable_irq (hwif->irq); | |
1da177e4 | 776 | } |
abc4ad4c | 777 | } else |
31e8a465 BZ |
778 | outb(mask ? (drive->ctl | 2) : (drive->ctl & ~2), |
779 | IDE_CONTROL_REG); | |
1da177e4 LT |
780 | } |
781 | ||
1da177e4 | 782 | /* |
abc4ad4c | 783 | * This is specific to the HPT366 UDMA chipset |
1da177e4 LT |
784 | * by HighPoint|Triones Technologies, Inc. |
785 | */ | |
841d2a9b | 786 | static void hpt366_dma_lost_irq(ide_drive_t *drive) |
1da177e4 | 787 | { |
abc4ad4c SS |
788 | struct pci_dev *dev = HWIF(drive)->pci_dev; |
789 | u8 mcr1 = 0, mcr3 = 0, scr1 = 0; | |
790 | ||
791 | pci_read_config_byte(dev, 0x50, &mcr1); | |
792 | pci_read_config_byte(dev, 0x52, &mcr3); | |
793 | pci_read_config_byte(dev, 0x5a, &scr1); | |
794 | printk("%s: (%s) mcr1=0x%02x, mcr3=0x%02x, scr1=0x%02x\n", | |
795 | drive->name, __FUNCTION__, mcr1, mcr3, scr1); | |
796 | if (scr1 & 0x10) | |
797 | pci_write_config_byte(dev, 0x5a, scr1 & ~0x10); | |
841d2a9b | 798 | ide_dma_lost_irq(drive); |
1da177e4 LT |
799 | } |
800 | ||
4bf63de2 | 801 | static void hpt370_clear_engine(ide_drive_t *drive) |
1da177e4 | 802 | { |
abc4ad4c SS |
803 | ide_hwif_t *hwif = HWIF(drive); |
804 | ||
805 | pci_write_config_byte(hwif->pci_dev, hwif->select_data, 0x37); | |
1da177e4 LT |
806 | udelay(10); |
807 | } | |
808 | ||
4bf63de2 SS |
809 | static void hpt370_irq_timeout(ide_drive_t *drive) |
810 | { | |
811 | ide_hwif_t *hwif = HWIF(drive); | |
812 | u16 bfifo = 0; | |
813 | u8 dma_cmd; | |
814 | ||
815 | pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo); | |
816 | printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff); | |
817 | ||
818 | /* get DMA command mode */ | |
31e8a465 | 819 | dma_cmd = inb(hwif->dma_command); |
4bf63de2 | 820 | /* stop DMA */ |
31e8a465 | 821 | outb(dma_cmd & ~0x1, hwif->dma_command); |
4bf63de2 SS |
822 | hpt370_clear_engine(drive); |
823 | } | |
824 | ||
1da177e4 LT |
825 | static void hpt370_ide_dma_start(ide_drive_t *drive) |
826 | { | |
827 | #ifdef HPT_RESET_STATE_ENGINE | |
828 | hpt370_clear_engine(drive); | |
829 | #endif | |
830 | ide_dma_start(drive); | |
831 | } | |
832 | ||
4bf63de2 | 833 | static int hpt370_ide_dma_end(ide_drive_t *drive) |
1da177e4 LT |
834 | { |
835 | ide_hwif_t *hwif = HWIF(drive); | |
31e8a465 | 836 | u8 dma_stat = inb(hwif->dma_status); |
1da177e4 LT |
837 | |
838 | if (dma_stat & 0x01) { | |
839 | /* wait a little */ | |
840 | udelay(20); | |
31e8a465 | 841 | dma_stat = inb(hwif->dma_status); |
4bf63de2 SS |
842 | if (dma_stat & 0x01) |
843 | hpt370_irq_timeout(drive); | |
1da177e4 | 844 | } |
1da177e4 LT |
845 | return __ide_dma_end(drive); |
846 | } | |
847 | ||
c283f5db | 848 | static void hpt370_dma_timeout(ide_drive_t *drive) |
1da177e4 | 849 | { |
4bf63de2 | 850 | hpt370_irq_timeout(drive); |
c283f5db | 851 | ide_dma_timeout(drive); |
1da177e4 LT |
852 | } |
853 | ||
1da177e4 LT |
854 | /* returns 1 if DMA IRQ issued, 0 otherwise */ |
855 | static int hpt374_ide_dma_test_irq(ide_drive_t *drive) | |
856 | { | |
857 | ide_hwif_t *hwif = HWIF(drive); | |
858 | u16 bfifo = 0; | |
abc4ad4c | 859 | u8 dma_stat; |
1da177e4 | 860 | |
abc4ad4c | 861 | pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo); |
1da177e4 LT |
862 | if (bfifo & 0x1FF) { |
863 | // printk("%s: %d bytes in FIFO\n", drive->name, bfifo); | |
864 | return 0; | |
865 | } | |
866 | ||
0ecdca26 | 867 | dma_stat = inb(hwif->dma_status); |
1da177e4 | 868 | /* return 1 if INTR asserted */ |
abc4ad4c | 869 | if (dma_stat & 4) |
1da177e4 LT |
870 | return 1; |
871 | ||
872 | if (!drive->waiting_for_dma) | |
873 | printk(KERN_WARNING "%s: (%s) called while not waiting\n", | |
874 | drive->name, __FUNCTION__); | |
875 | return 0; | |
876 | } | |
877 | ||
abc4ad4c | 878 | static int hpt374_ide_dma_end(ide_drive_t *drive) |
1da177e4 | 879 | { |
1da177e4 | 880 | ide_hwif_t *hwif = HWIF(drive); |
abc4ad4c SS |
881 | struct pci_dev *dev = hwif->pci_dev; |
882 | u8 mcr = 0, mcr_addr = hwif->select_data; | |
883 | u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01; | |
884 | ||
885 | pci_read_config_byte(dev, 0x6a, &bwsr); | |
886 | pci_read_config_byte(dev, mcr_addr, &mcr); | |
887 | if (bwsr & mask) | |
888 | pci_write_config_byte(dev, mcr_addr, mcr | 0x30); | |
1da177e4 LT |
889 | return __ide_dma_end(drive); |
890 | } | |
891 | ||
892 | /** | |
836c0063 SS |
893 | * hpt3xxn_set_clock - perform clock switching dance |
894 | * @hwif: hwif to switch | |
895 | * @mode: clocking mode (0x21 for write, 0x23 otherwise) | |
1da177e4 | 896 | * |
836c0063 | 897 | * Switch the DPLL clock on the HPT3xxN devices. This is a right mess. |
1da177e4 | 898 | */ |
836c0063 SS |
899 | |
900 | static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode) | |
1da177e4 | 901 | { |
31e8a465 | 902 | u8 scr2 = inb(hwif->dma_master + 0x7b); |
836c0063 SS |
903 | |
904 | if ((scr2 & 0x7f) == mode) | |
905 | return; | |
906 | ||
1da177e4 | 907 | /* Tristate the bus */ |
31e8a465 BZ |
908 | outb(0x80, hwif->dma_master + 0x73); |
909 | outb(0x80, hwif->dma_master + 0x77); | |
836c0063 | 910 | |
1da177e4 | 911 | /* Switch clock and reset channels */ |
31e8a465 BZ |
912 | outb(mode, hwif->dma_master + 0x7b); |
913 | outb(0xc0, hwif->dma_master + 0x79); | |
836c0063 | 914 | |
7b73ee05 SS |
915 | /* |
916 | * Reset the state machines. | |
917 | * NOTE: avoid accidentally enabling the disabled channels. | |
918 | */ | |
31e8a465 BZ |
919 | outb(inb(hwif->dma_master + 0x70) | 0x32, hwif->dma_master + 0x70); |
920 | outb(inb(hwif->dma_master + 0x74) | 0x32, hwif->dma_master + 0x74); | |
836c0063 | 921 | |
1da177e4 | 922 | /* Complete reset */ |
31e8a465 | 923 | outb(0x00, hwif->dma_master + 0x79); |
836c0063 | 924 | |
1da177e4 | 925 | /* Reconnect channels to bus */ |
31e8a465 BZ |
926 | outb(0x00, hwif->dma_master + 0x73); |
927 | outb(0x00, hwif->dma_master + 0x77); | |
1da177e4 LT |
928 | } |
929 | ||
930 | /** | |
836c0063 | 931 | * hpt3xxn_rw_disk - prepare for I/O |
1da177e4 LT |
932 | * @drive: drive for command |
933 | * @rq: block request structure | |
934 | * | |
836c0063 | 935 | * This is called when a disk I/O is issued to HPT3xxN. |
1da177e4 LT |
936 | * We need it because of the clock switching. |
937 | */ | |
938 | ||
836c0063 | 939 | static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq) |
1da177e4 | 940 | { |
7b73ee05 | 941 | hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21); |
1da177e4 LT |
942 | } |
943 | ||
1da177e4 | 944 | /* |
33b18a60 | 945 | * Set/get power state for a drive. |
abc4ad4c | 946 | * NOTE: affects both drives on each channel. |
1da177e4 | 947 | * |
33b18a60 | 948 | * When we turn the power back on, we need to re-initialize things. |
1da177e4 LT |
949 | */ |
950 | #define TRISTATE_BIT 0x8000 | |
33b18a60 SS |
951 | |
952 | static int hpt3xx_busproc(ide_drive_t *drive, int state) | |
1da177e4 | 953 | { |
abc4ad4c | 954 | ide_hwif_t *hwif = HWIF(drive); |
1da177e4 | 955 | struct pci_dev *dev = hwif->pci_dev; |
abc4ad4c SS |
956 | u8 mcr_addr = hwif->select_data + 2; |
957 | u8 resetmask = hwif->channel ? 0x80 : 0x40; | |
958 | u8 bsr2 = 0; | |
959 | u16 mcr = 0; | |
1da177e4 LT |
960 | |
961 | hwif->bus_state = state; | |
962 | ||
33b18a60 | 963 | /* Grab the status. */ |
abc4ad4c SS |
964 | pci_read_config_word(dev, mcr_addr, &mcr); |
965 | pci_read_config_byte(dev, 0x59, &bsr2); | |
1da177e4 | 966 | |
33b18a60 SS |
967 | /* |
968 | * Set the state. We don't set it if we don't need to do so. | |
969 | * Make sure that the drive knows that it has failed if it's off. | |
970 | */ | |
1da177e4 LT |
971 | switch (state) { |
972 | case BUSSTATE_ON: | |
abc4ad4c | 973 | if (!(bsr2 & resetmask)) |
1da177e4 | 974 | return 0; |
33b18a60 SS |
975 | hwif->drives[0].failures = hwif->drives[1].failures = 0; |
976 | ||
abc4ad4c SS |
977 | pci_write_config_byte(dev, 0x59, bsr2 & ~resetmask); |
978 | pci_write_config_word(dev, mcr_addr, mcr & ~TRISTATE_BIT); | |
33b18a60 | 979 | return 0; |
1da177e4 | 980 | case BUSSTATE_OFF: |
abc4ad4c | 981 | if ((bsr2 & resetmask) && !(mcr & TRISTATE_BIT)) |
1da177e4 | 982 | return 0; |
abc4ad4c | 983 | mcr &= ~TRISTATE_BIT; |
1da177e4 LT |
984 | break; |
985 | case BUSSTATE_TRISTATE: | |
abc4ad4c | 986 | if ((bsr2 & resetmask) && (mcr & TRISTATE_BIT)) |
1da177e4 | 987 | return 0; |
abc4ad4c | 988 | mcr |= TRISTATE_BIT; |
1da177e4 | 989 | break; |
33b18a60 SS |
990 | default: |
991 | return -EINVAL; | |
1da177e4 | 992 | } |
1da177e4 | 993 | |
33b18a60 SS |
994 | hwif->drives[0].failures = hwif->drives[0].max_failures + 1; |
995 | hwif->drives[1].failures = hwif->drives[1].max_failures + 1; | |
996 | ||
abc4ad4c SS |
997 | pci_write_config_word(dev, mcr_addr, mcr); |
998 | pci_write_config_byte(dev, 0x59, bsr2 | resetmask); | |
1da177e4 LT |
999 | return 0; |
1000 | } | |
1001 | ||
7b73ee05 SS |
1002 | /** |
1003 | * hpt37x_calibrate_dpll - calibrate the DPLL | |
1004 | * @dev: PCI device | |
1005 | * | |
1006 | * Perform a calibration cycle on the DPLL. | |
1007 | * Returns 1 if this succeeds | |
1008 | */ | |
1009 | static int __devinit hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f_high) | |
1da177e4 | 1010 | { |
7b73ee05 SS |
1011 | u32 dpll = (f_high << 16) | f_low | 0x100; |
1012 | u8 scr2; | |
1013 | int i; | |
b39b01ff | 1014 | |
7b73ee05 | 1015 | pci_write_config_dword(dev, 0x5c, dpll); |
b39b01ff | 1016 | |
7b73ee05 SS |
1017 | /* Wait for oscillator ready */ |
1018 | for(i = 0; i < 0x5000; ++i) { | |
1019 | udelay(50); | |
1020 | pci_read_config_byte(dev, 0x5b, &scr2); | |
1021 | if (scr2 & 0x80) | |
b39b01ff AC |
1022 | break; |
1023 | } | |
7b73ee05 SS |
1024 | /* See if it stays ready (we'll just bail out if it's not yet) */ |
1025 | for(i = 0; i < 0x1000; ++i) { | |
1026 | pci_read_config_byte(dev, 0x5b, &scr2); | |
1027 | /* DPLL destabilized? */ | |
1028 | if(!(scr2 & 0x80)) | |
1029 | return 0; | |
1030 | } | |
1031 | /* Turn off tuning, we have the DPLL set */ | |
1032 | pci_read_config_dword (dev, 0x5c, &dpll); | |
1033 | pci_write_config_dword(dev, 0x5c, (dpll & ~0x100)); | |
1034 | return 1; | |
b39b01ff AC |
1035 | } |
1036 | ||
7b73ee05 | 1037 | static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name) |
b39b01ff | 1038 | { |
7b73ee05 SS |
1039 | struct hpt_info *info = kmalloc(sizeof(struct hpt_info), GFP_KERNEL); |
1040 | unsigned long io_base = pci_resource_start(dev, 4); | |
1041 | u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */ | |
72931368 | 1042 | u8 chip_type; |
7b73ee05 SS |
1043 | enum ata_clock clock; |
1044 | ||
1045 | if (info == NULL) { | |
1046 | printk(KERN_ERR "%s: out of memory!\n", name); | |
1047 | return -ENOMEM; | |
1048 | } | |
1049 | ||
1da177e4 | 1050 | /* |
7b73ee05 SS |
1051 | * Copy everything from a static "template" structure |
1052 | * to just allocated per-chip hpt_info structure. | |
1da177e4 | 1053 | */ |
72931368 SS |
1054 | memcpy(info, pci_get_drvdata(dev), sizeof(struct hpt_info)); |
1055 | chip_type = info->chip_type; | |
1da177e4 | 1056 | |
7b73ee05 SS |
1057 | pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4)); |
1058 | pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78); | |
1059 | pci_write_config_byte(dev, PCI_MIN_GNT, 0x08); | |
1060 | pci_write_config_byte(dev, PCI_MAX_LAT, 0x08); | |
26c068da | 1061 | |
1da177e4 | 1062 | /* |
7b73ee05 | 1063 | * First, try to estimate the PCI clock frequency... |
1da177e4 | 1064 | */ |
72931368 | 1065 | if (chip_type >= HPT370) { |
7b73ee05 SS |
1066 | u8 scr1 = 0; |
1067 | u16 f_cnt = 0; | |
1068 | u32 temp = 0; | |
1069 | ||
1070 | /* Interrupt force enable. */ | |
1071 | pci_read_config_byte(dev, 0x5a, &scr1); | |
1072 | if (scr1 & 0x10) | |
1073 | pci_write_config_byte(dev, 0x5a, scr1 & ~0x10); | |
1074 | ||
1075 | /* | |
1076 | * HighPoint does this for HPT372A. | |
1077 | * NOTE: This register is only writeable via I/O space. | |
1078 | */ | |
72931368 | 1079 | if (chip_type == HPT372A) |
7b73ee05 SS |
1080 | outb(0x0e, io_base + 0x9c); |
1081 | ||
1082 | /* | |
1083 | * Default to PCI clock. Make sure MA15/16 are set to output | |
1084 | * to prevent drives having problems with 40-pin cables. | |
1085 | */ | |
1086 | pci_write_config_byte(dev, 0x5b, 0x23); | |
836c0063 | 1087 | |
7b73ee05 SS |
1088 | /* |
1089 | * We'll have to read f_CNT value in order to determine | |
1090 | * the PCI clock frequency according to the following ratio: | |
1091 | * | |
1092 | * f_CNT = Fpci * 192 / Fdpll | |
1093 | * | |
1094 | * First try reading the register in which the HighPoint BIOS | |
1095 | * saves f_CNT value before reprogramming the DPLL from its | |
1096 | * default setting (which differs for the various chips). | |
7b73ee05 | 1097 | * |
72931368 SS |
1098 | * NOTE: This register is only accessible via I/O space; |
1099 | * HPT374 BIOS only saves it for the function 0, so we have to | |
1100 | * always read it from there -- no need to check the result of | |
1101 | * pci_get_slot() for the function 0 as the whole device has | |
1102 | * been already "pinned" (via function 1) in init_setup_hpt374() | |
1103 | */ | |
1104 | if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) { | |
1105 | struct pci_dev *dev1 = pci_get_slot(dev->bus, | |
1106 | dev->devfn - 1); | |
1107 | unsigned long io_base = pci_resource_start(dev1, 4); | |
1108 | ||
1109 | temp = inl(io_base + 0x90); | |
1110 | pci_dev_put(dev1); | |
1111 | } else | |
1112 | temp = inl(io_base + 0x90); | |
1113 | ||
1114 | /* | |
1115 | * In case the signature check fails, we'll have to | |
1116 | * resort to reading the f_CNT register itself in hopes | |
1117 | * that nobody has touched the DPLL yet... | |
7b73ee05 | 1118 | */ |
7b73ee05 SS |
1119 | if ((temp & 0xFFFFF000) != 0xABCDE000) { |
1120 | int i; | |
1121 | ||
1122 | printk(KERN_WARNING "%s: no clock data saved by BIOS\n", | |
1123 | name); | |
1124 | ||
1125 | /* Calculate the average value of f_CNT. */ | |
1126 | for (temp = i = 0; i < 128; i++) { | |
1127 | pci_read_config_word(dev, 0x78, &f_cnt); | |
1128 | temp += f_cnt & 0x1ff; | |
1129 | mdelay(1); | |
1130 | } | |
1131 | f_cnt = temp / 128; | |
1132 | } else | |
1133 | f_cnt = temp & 0x1ff; | |
1134 | ||
1135 | dpll_clk = info->dpll_clk; | |
1136 | pci_clk = (f_cnt * dpll_clk) / 192; | |
1137 | ||
1138 | /* Clamp PCI clock to bands. */ | |
1139 | if (pci_clk < 40) | |
1140 | pci_clk = 33; | |
1141 | else if(pci_clk < 45) | |
1142 | pci_clk = 40; | |
1143 | else if(pci_clk < 55) | |
1144 | pci_clk = 50; | |
1da177e4 | 1145 | else |
7b73ee05 | 1146 | pci_clk = 66; |
836c0063 | 1147 | |
7b73ee05 SS |
1148 | printk(KERN_INFO "%s: DPLL base: %d MHz, f_CNT: %d, " |
1149 | "assuming %d MHz PCI\n", name, dpll_clk, f_cnt, pci_clk); | |
90778574 | 1150 | } else { |
7b73ee05 SS |
1151 | u32 itr1 = 0; |
1152 | ||
1153 | pci_read_config_dword(dev, 0x40, &itr1); | |
1154 | ||
1155 | /* Detect PCI clock by looking at cmd_high_time. */ | |
1156 | switch((itr1 >> 8) & 0x07) { | |
1157 | case 0x09: | |
1158 | pci_clk = 40; | |
6273d26a | 1159 | break; |
7b73ee05 SS |
1160 | case 0x05: |
1161 | pci_clk = 25; | |
6273d26a | 1162 | break; |
7b73ee05 SS |
1163 | case 0x07: |
1164 | default: | |
1165 | pci_clk = 33; | |
6273d26a | 1166 | break; |
1da177e4 LT |
1167 | } |
1168 | } | |
836c0063 | 1169 | |
7b73ee05 SS |
1170 | /* Let's assume we'll use PCI clock for the ATA clock... */ |
1171 | switch (pci_clk) { | |
1172 | case 25: | |
1173 | clock = ATA_CLOCK_25MHZ; | |
1174 | break; | |
1175 | case 33: | |
1176 | default: | |
1177 | clock = ATA_CLOCK_33MHZ; | |
1178 | break; | |
1179 | case 40: | |
1180 | clock = ATA_CLOCK_40MHZ; | |
1181 | break; | |
1182 | case 50: | |
1183 | clock = ATA_CLOCK_50MHZ; | |
1184 | break; | |
1185 | case 66: | |
1186 | clock = ATA_CLOCK_66MHZ; | |
1187 | break; | |
1188 | } | |
836c0063 | 1189 | |
1da177e4 | 1190 | /* |
7b73ee05 SS |
1191 | * Only try the DPLL if we don't have a table for the PCI clock that |
1192 | * we are running at for HPT370/A, always use it for anything newer... | |
b39b01ff | 1193 | * |
7b73ee05 SS |
1194 | * NOTE: Using the internal DPLL results in slow reads on 33 MHz PCI. |
1195 | * We also don't like using the DPLL because this causes glitches | |
1196 | * on PRST-/SRST- when the state engine gets reset... | |
1da177e4 | 1197 | */ |
72931368 | 1198 | if (chip_type >= HPT374 || info->settings[clock] == NULL) { |
7b73ee05 SS |
1199 | u16 f_low, delta = pci_clk < 50 ? 2 : 4; |
1200 | int adjust; | |
1201 | ||
1202 | /* | |
1203 | * Select 66 MHz DPLL clock only if UltraATA/133 mode is | |
1204 | * supported/enabled, use 50 MHz DPLL clock otherwise... | |
1205 | */ | |
fbf47840 | 1206 | if (info->udma_mask == ATA_UDMA6) { |
7b73ee05 SS |
1207 | dpll_clk = 66; |
1208 | clock = ATA_CLOCK_66MHZ; | |
1209 | } else if (dpll_clk) { /* HPT36x chips don't have DPLL */ | |
1210 | dpll_clk = 50; | |
1211 | clock = ATA_CLOCK_50MHZ; | |
1212 | } | |
b39b01ff | 1213 | |
7b73ee05 SS |
1214 | if (info->settings[clock] == NULL) { |
1215 | printk(KERN_ERR "%s: unknown bus timing!\n", name); | |
1216 | kfree(info); | |
1217 | return -EIO; | |
1da177e4 | 1218 | } |
1da177e4 | 1219 | |
7b73ee05 SS |
1220 | /* Select the DPLL clock. */ |
1221 | pci_write_config_byte(dev, 0x5b, 0x21); | |
1222 | ||
1223 | /* | |
1224 | * Adjust the DPLL based upon PCI clock, enable it, | |
1225 | * and wait for stabilization... | |
1226 | */ | |
1227 | f_low = (pci_clk * 48) / dpll_clk; | |
1228 | ||
1229 | for (adjust = 0; adjust < 8; adjust++) { | |
1230 | if(hpt37x_calibrate_dpll(dev, f_low, f_low + delta)) | |
1231 | break; | |
1232 | ||
1233 | /* | |
1234 | * See if it'll settle at a fractionally different clock | |
1235 | */ | |
1236 | if (adjust & 1) | |
1237 | f_low -= adjust >> 1; | |
1238 | else | |
1239 | f_low += adjust >> 1; | |
1240 | } | |
1241 | if (adjust == 8) { | |
1242 | printk(KERN_ERR "%s: DPLL did not stabilize!\n", name); | |
1243 | kfree(info); | |
1244 | return -EIO; | |
1245 | } | |
1246 | ||
1247 | printk("%s: using %d MHz DPLL clock\n", name, dpll_clk); | |
1248 | } else { | |
1249 | /* Mark the fact that we're not using the DPLL. */ | |
1250 | dpll_clk = 0; | |
1251 | ||
1252 | printk("%s: using %d MHz PCI clock\n", name, pci_clk); | |
1253 | } | |
b39b01ff | 1254 | |
9ec4ff42 | 1255 | /* |
7b73ee05 SS |
1256 | * Advance the table pointer to a slot which points to the list |
1257 | * of the register values settings matching the clock being used. | |
9ec4ff42 | 1258 | */ |
7b73ee05 | 1259 | info->settings += clock; |
1da177e4 | 1260 | |
7b73ee05 SS |
1261 | /* Store the clock frequencies. */ |
1262 | info->dpll_clk = dpll_clk; | |
1263 | info->pci_clk = pci_clk; | |
1da177e4 | 1264 | |
7b73ee05 SS |
1265 | /* Point to this chip's own instance of the hpt_info structure. */ |
1266 | pci_set_drvdata(dev, info); | |
b39b01ff | 1267 | |
72931368 | 1268 | if (chip_type >= HPT370) { |
7b73ee05 SS |
1269 | u8 mcr1, mcr4; |
1270 | ||
1271 | /* | |
1272 | * Reset the state engines. | |
1273 | * NOTE: Avoid accidentally enabling the disabled channels. | |
1274 | */ | |
1275 | pci_read_config_byte (dev, 0x50, &mcr1); | |
1276 | pci_read_config_byte (dev, 0x54, &mcr4); | |
1277 | pci_write_config_byte(dev, 0x50, (mcr1 | 0x32)); | |
1278 | pci_write_config_byte(dev, 0x54, (mcr4 | 0x32)); | |
1279 | udelay(100); | |
26ccb802 | 1280 | } |
1da177e4 | 1281 | |
7b73ee05 SS |
1282 | /* |
1283 | * On HPT371N, if ATA clock is 66 MHz we must set bit 2 in | |
1284 | * the MISC. register to stretch the UltraDMA Tss timing. | |
1285 | * NOTE: This register is only writeable via I/O space. | |
1286 | */ | |
72931368 | 1287 | if (chip_type == HPT371N && clock == ATA_CLOCK_66MHZ) |
7b73ee05 SS |
1288 | |
1289 | outb(inb(io_base + 0x9c) | 0x04, io_base + 0x9c); | |
1290 | ||
1da177e4 LT |
1291 | return dev->irq; |
1292 | } | |
1293 | ||
1294 | static void __devinit init_hwif_hpt366(ide_hwif_t *hwif) | |
1295 | { | |
2808b0a9 SS |
1296 | struct pci_dev *dev = hwif->pci_dev; |
1297 | struct hpt_info *info = pci_get_drvdata(dev); | |
1298 | int serialize = HPT_SERIALIZE_IO; | |
1299 | u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02; | |
1300 | u8 chip_type = info->chip_type; | |
1301 | u8 new_mcr, old_mcr = 0; | |
abc4ad4c SS |
1302 | |
1303 | /* Cache the channel's MISC. control registers' offset */ | |
2808b0a9 | 1304 | hwif->select_data = hwif->channel ? 0x54 : 0x50; |
abc4ad4c | 1305 | |
26bcb879 | 1306 | hwif->set_pio_mode = &hpt3xx_set_pio_mode; |
a488f34e SS |
1307 | if (chip_type >= HPT370) |
1308 | hwif->set_dma_mode = &hpt37x_set_mode; | |
1309 | else | |
1310 | hwif->set_dma_mode = &hpt36x_set_mode; | |
1311 | ||
2808b0a9 SS |
1312 | hwif->quirkproc = &hpt3xx_quirkproc; |
1313 | hwif->intrproc = &hpt3xx_intrproc; | |
1314 | hwif->maskproc = &hpt3xx_maskproc; | |
1315 | hwif->busproc = &hpt3xx_busproc; | |
2648e5d9 | 1316 | |
2808b0a9 | 1317 | hwif->udma_filter = &hpt3xx_udma_filter; |
b4e44369 | 1318 | hwif->mdma_filter = &hpt3xx_mdma_filter; |
abc4ad4c | 1319 | |
836c0063 SS |
1320 | /* |
1321 | * HPT3xxN chips have some complications: | |
1322 | * | |
1323 | * - on 33 MHz PCI we must clock switch | |
1324 | * - on 66 MHz PCI we must NOT use the PCI clock | |
1325 | */ | |
7b73ee05 | 1326 | if (chip_type >= HPT372N && info->dpll_clk && info->pci_clk < 66) { |
836c0063 SS |
1327 | /* |
1328 | * Clock is shared between the channels, | |
1329 | * so we'll have to serialize them... :-( | |
1330 | */ | |
1331 | serialize = 1; | |
1332 | hwif->rw_disk = &hpt3xxn_rw_disk; | |
1333 | } | |
1da177e4 | 1334 | |
26ccb802 SS |
1335 | /* Serialize access to this device if needed */ |
1336 | if (serialize && hwif->mate) | |
1337 | hwif->serialized = hwif->mate->serialized = 1; | |
1338 | ||
1339 | /* | |
1340 | * Disable the "fast interrupt" prediction. Don't hold off | |
1341 | * on interrupts. (== 0x01 despite what the docs say) | |
1342 | */ | |
1343 | pci_read_config_byte(dev, hwif->select_data + 1, &old_mcr); | |
1344 | ||
7b73ee05 | 1345 | if (info->chip_type >= HPT374) |
26ccb802 | 1346 | new_mcr = old_mcr & ~0x07; |
7b73ee05 | 1347 | else if (info->chip_type >= HPT370) { |
26ccb802 SS |
1348 | new_mcr = old_mcr; |
1349 | new_mcr &= ~0x02; | |
1350 | ||
1351 | #ifdef HPT_DELAY_INTERRUPT | |
1352 | new_mcr &= ~0x01; | |
1353 | #else | |
1354 | new_mcr |= 0x01; | |
1355 | #endif | |
1356 | } else /* HPT366 and HPT368 */ | |
1357 | new_mcr = old_mcr & ~0x80; | |
1358 | ||
1359 | if (new_mcr != old_mcr) | |
1360 | pci_write_config_byte(dev, hwif->select_data + 1, new_mcr); | |
1361 | ||
a29ec3b2 | 1362 | if (hwif->dma_base == 0) |
26ccb802 | 1363 | return; |
26ccb802 | 1364 | |
1da177e4 LT |
1365 | /* |
1366 | * The HPT37x uses the CBLID pins as outputs for MA15/MA16 | |
abc4ad4c | 1367 | * address lines to access an external EEPROM. To read valid |
1da177e4 LT |
1368 | * cable detect state the pins must be enabled as inputs. |
1369 | */ | |
7b73ee05 | 1370 | if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) { |
1da177e4 LT |
1371 | /* |
1372 | * HPT374 PCI function 1 | |
1373 | * - set bit 15 of reg 0x52 to enable TCBLID as input | |
1374 | * - set bit 15 of reg 0x56 to enable FCBLID as input | |
1375 | */ | |
abc4ad4c SS |
1376 | u8 mcr_addr = hwif->select_data + 2; |
1377 | u16 mcr; | |
1378 | ||
1379 | pci_read_config_word (dev, mcr_addr, &mcr); | |
1380 | pci_write_config_word(dev, mcr_addr, (mcr | 0x8000)); | |
1da177e4 | 1381 | /* now read cable id register */ |
abc4ad4c SS |
1382 | pci_read_config_byte (dev, 0x5a, &scr1); |
1383 | pci_write_config_word(dev, mcr_addr, mcr); | |
7b73ee05 | 1384 | } else if (chip_type >= HPT370) { |
1da177e4 LT |
1385 | /* |
1386 | * HPT370/372 and 374 pcifn 0 | |
abc4ad4c | 1387 | * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs |
1da177e4 | 1388 | */ |
abc4ad4c | 1389 | u8 scr2 = 0; |
1da177e4 | 1390 | |
abc4ad4c SS |
1391 | pci_read_config_byte (dev, 0x5b, &scr2); |
1392 | pci_write_config_byte(dev, 0x5b, (scr2 & ~1)); | |
1393 | /* now read cable id register */ | |
1394 | pci_read_config_byte (dev, 0x5a, &scr1); | |
1395 | pci_write_config_byte(dev, 0x5b, scr2); | |
1396 | } else | |
1397 | pci_read_config_byte (dev, 0x5a, &scr1); | |
1da177e4 | 1398 | |
49521f97 BZ |
1399 | if (hwif->cbl != ATA_CBL_PATA40_SHORT) |
1400 | hwif->cbl = (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; | |
1da177e4 | 1401 | |
7b73ee05 | 1402 | if (chip_type >= HPT374) { |
26ccb802 SS |
1403 | hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq; |
1404 | hwif->ide_dma_end = &hpt374_ide_dma_end; | |
7b73ee05 | 1405 | } else if (chip_type >= HPT370) { |
26ccb802 SS |
1406 | hwif->dma_start = &hpt370_ide_dma_start; |
1407 | hwif->ide_dma_end = &hpt370_ide_dma_end; | |
c283f5db | 1408 | hwif->dma_timeout = &hpt370_dma_timeout; |
26ccb802 | 1409 | } else |
841d2a9b | 1410 | hwif->dma_lost_irq = &hpt366_dma_lost_irq; |
1da177e4 LT |
1411 | } |
1412 | ||
1413 | static void __devinit init_dma_hpt366(ide_hwif_t *hwif, unsigned long dmabase) | |
1414 | { | |
26ccb802 | 1415 | struct pci_dev *dev = hwif->pci_dev; |
abc4ad4c SS |
1416 | u8 masterdma = 0, slavedma = 0; |
1417 | u8 dma_new = 0, dma_old = 0; | |
1da177e4 LT |
1418 | unsigned long flags; |
1419 | ||
31e8a465 | 1420 | dma_old = inb(dmabase + 2); |
1da177e4 LT |
1421 | |
1422 | local_irq_save(flags); | |
1423 | ||
1424 | dma_new = dma_old; | |
abc4ad4c SS |
1425 | pci_read_config_byte(dev, hwif->channel ? 0x4b : 0x43, &masterdma); |
1426 | pci_read_config_byte(dev, hwif->channel ? 0x4f : 0x47, &slavedma); | |
1da177e4 LT |
1427 | |
1428 | if (masterdma & 0x30) dma_new |= 0x20; | |
abc4ad4c | 1429 | if ( slavedma & 0x30) dma_new |= 0x40; |
1da177e4 | 1430 | if (dma_new != dma_old) |
31e8a465 | 1431 | outb(dma_new, dmabase + 2); |
1da177e4 LT |
1432 | |
1433 | local_irq_restore(flags); | |
1434 | ||
1435 | ide_setup_dma(hwif, dmabase, 8); | |
1436 | } | |
1437 | ||
fbf47840 | 1438 | static void __devinit hpt374_init(struct pci_dev *dev, struct pci_dev *dev2) |
1da177e4 | 1439 | { |
fbf47840 BZ |
1440 | if (dev2->irq != dev->irq) { |
1441 | /* FIXME: we need a core pci_set_interrupt() */ | |
1442 | dev2->irq = dev->irq; | |
1443 | printk(KERN_INFO "HPT374: PCI config space interrupt fixed\n"); | |
1da177e4 | 1444 | } |
1da177e4 LT |
1445 | } |
1446 | ||
fbf47840 | 1447 | static void __devinit hpt371_init(struct pci_dev *dev) |
836c0063 | 1448 | { |
44c10138 | 1449 | u8 mcr1 = 0; |
90778574 | 1450 | |
836c0063 SS |
1451 | /* |
1452 | * HPT371 chips physically have only one channel, the secondary one, | |
1453 | * but the primary channel registers do exist! Go figure... | |
1454 | * So, we manually disable the non-existing channel here | |
1455 | * (if the BIOS hasn't done this already). | |
1456 | */ | |
1457 | pci_read_config_byte(dev, 0x50, &mcr1); | |
1458 | if (mcr1 & 0x04) | |
90778574 | 1459 | pci_write_config_byte(dev, 0x50, mcr1 & ~0x04); |
90778574 SS |
1460 | } |
1461 | ||
fbf47840 | 1462 | static int __devinit hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2) |
90778574 | 1463 | { |
fbf47840 | 1464 | u8 mcr1 = 0, pin1 = 0, pin2 = 0; |
7b73ee05 | 1465 | |
fbf47840 BZ |
1466 | /* |
1467 | * Now we'll have to force both channels enabled if | |
1468 | * at least one of them has been enabled by BIOS... | |
1469 | */ | |
1470 | pci_read_config_byte(dev, 0x50, &mcr1); | |
1471 | if (mcr1 & 0x30) | |
1472 | pci_write_config_byte(dev, 0x50, mcr1 | 0x30); | |
836c0063 | 1473 | |
fbf47840 BZ |
1474 | pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1); |
1475 | pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2); | |
1da177e4 | 1476 | |
fbf47840 BZ |
1477 | if (pin1 != pin2 && dev->irq == dev2->irq) { |
1478 | printk(KERN_INFO "HPT36x: onboard version of chipset, " | |
1479 | "pin1=%d pin2=%d\n", pin1, pin2); | |
1480 | return 1; | |
2648e5d9 SS |
1481 | } |
1482 | ||
fbf47840 | 1483 | return 0; |
1da177e4 LT |
1484 | } |
1485 | ||
85620436 | 1486 | static const struct ide_port_info hpt366_chipsets[] __devinitdata = { |
1da177e4 | 1487 | { /* 0 */ |
fbf47840 | 1488 | .name = "HPT36x", |
1da177e4 LT |
1489 | .init_chipset = init_chipset_hpt366, |
1490 | .init_hwif = init_hwif_hpt366, | |
1491 | .init_dma = init_dma_hpt366, | |
fbf47840 BZ |
1492 | /* |
1493 | * HPT36x chips have one channel per function and have | |
1494 | * both channel enable bits located differently and visible | |
1495 | * to both functions -- really stupid design decision... :-( | |
1496 | * Bit 4 is for the primary channel, bit 5 for the secondary. | |
1497 | */ | |
1498 | .enablebits = {{0x50,0x10,0x10}, {0x54,0x04,0x04}}, | |
4099d143 | 1499 | .extra = 240, |
fbf47840 BZ |
1500 | .host_flags = IDE_HFLAG_SINGLE | |
1501 | IDE_HFLAG_NO_ATAPI_DMA | | |
1502 | IDE_HFLAG_OFF_BOARD, | |
4099d143 | 1503 | .pio_mask = ATA_PIO4, |
5f8b6c34 | 1504 | .mwdma_mask = ATA_MWDMA2, |
1da177e4 LT |
1505 | },{ /* 1 */ |
1506 | .name = "HPT372A", | |
1da177e4 LT |
1507 | .init_chipset = init_chipset_hpt366, |
1508 | .init_hwif = init_hwif_hpt366, | |
1509 | .init_dma = init_dma_hpt366, | |
7b73ee05 | 1510 | .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, |
4099d143 | 1511 | .extra = 240, |
7cab14a7 | 1512 | .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD, |
4099d143 | 1513 | .pio_mask = ATA_PIO4, |
5f8b6c34 | 1514 | .mwdma_mask = ATA_MWDMA2, |
1da177e4 LT |
1515 | },{ /* 2 */ |
1516 | .name = "HPT302", | |
1da177e4 LT |
1517 | .init_chipset = init_chipset_hpt366, |
1518 | .init_hwif = init_hwif_hpt366, | |
1519 | .init_dma = init_dma_hpt366, | |
7b73ee05 | 1520 | .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, |
4099d143 | 1521 | .extra = 240, |
7cab14a7 | 1522 | .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD, |
4099d143 | 1523 | .pio_mask = ATA_PIO4, |
5f8b6c34 | 1524 | .mwdma_mask = ATA_MWDMA2, |
1da177e4 LT |
1525 | },{ /* 3 */ |
1526 | .name = "HPT371", | |
1da177e4 LT |
1527 | .init_chipset = init_chipset_hpt366, |
1528 | .init_hwif = init_hwif_hpt366, | |
1529 | .init_dma = init_dma_hpt366, | |
836c0063 | 1530 | .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, |
4099d143 | 1531 | .extra = 240, |
7cab14a7 | 1532 | .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD, |
4099d143 | 1533 | .pio_mask = ATA_PIO4, |
5f8b6c34 | 1534 | .mwdma_mask = ATA_MWDMA2, |
1da177e4 LT |
1535 | },{ /* 4 */ |
1536 | .name = "HPT374", | |
1da177e4 LT |
1537 | .init_chipset = init_chipset_hpt366, |
1538 | .init_hwif = init_hwif_hpt366, | |
1539 | .init_dma = init_dma_hpt366, | |
7b73ee05 | 1540 | .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, |
2808b0a9 | 1541 | .udma_mask = ATA_UDMA5, |
4099d143 | 1542 | .extra = 240, |
7cab14a7 | 1543 | .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD, |
4099d143 | 1544 | .pio_mask = ATA_PIO4, |
5f8b6c34 | 1545 | .mwdma_mask = ATA_MWDMA2, |
1da177e4 LT |
1546 | },{ /* 5 */ |
1547 | .name = "HPT372N", | |
1da177e4 LT |
1548 | .init_chipset = init_chipset_hpt366, |
1549 | .init_hwif = init_hwif_hpt366, | |
1550 | .init_dma = init_dma_hpt366, | |
7b73ee05 | 1551 | .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, |
4099d143 | 1552 | .extra = 240, |
7cab14a7 | 1553 | .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD, |
4099d143 | 1554 | .pio_mask = ATA_PIO4, |
5f8b6c34 | 1555 | .mwdma_mask = ATA_MWDMA2, |
1da177e4 LT |
1556 | } |
1557 | }; | |
1558 | ||
1559 | /** | |
1560 | * hpt366_init_one - called when an HPT366 is found | |
1561 | * @dev: the hpt366 device | |
1562 | * @id: the matching pci id | |
1563 | * | |
1564 | * Called when the PCI registration layer (or the IDE initialization) | |
1565 | * finds a device matching our IDE device tables. | |
1566 | */ | |
1da177e4 LT |
1567 | static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
1568 | { | |
282037f1 | 1569 | const struct hpt_info *info = NULL; |
fbf47840 | 1570 | struct pci_dev *dev2 = NULL; |
039788e1 | 1571 | struct ide_port_info d; |
fbf47840 BZ |
1572 | u8 idx = id->driver_data; |
1573 | u8 rev = dev->revision; | |
1574 | ||
1575 | if ((idx == 0 || idx == 4) && (PCI_FUNC(dev->devfn) & 1)) | |
1576 | return -ENODEV; | |
1577 | ||
1578 | switch (idx) { | |
1579 | case 0: | |
1580 | if (rev < 3) | |
1581 | info = &hpt36x; | |
1582 | else { | |
282037f1 | 1583 | static const struct hpt_info *hpt37x_info[] = |
fbf47840 BZ |
1584 | { &hpt370, &hpt370a, &hpt372, &hpt372n }; |
1585 | ||
1586 | info = hpt37x_info[min_t(u8, rev, 6) - 3]; | |
1587 | idx++; | |
1588 | } | |
1589 | break; | |
1590 | case 1: | |
1591 | info = (rev > 1) ? &hpt372n : &hpt372a; | |
1592 | break; | |
1593 | case 2: | |
1594 | info = (rev > 1) ? &hpt302n : &hpt302; | |
1595 | break; | |
1596 | case 3: | |
1597 | hpt371_init(dev); | |
1598 | info = (rev > 1) ? &hpt371n : &hpt371; | |
1599 | break; | |
1600 | case 4: | |
1601 | info = &hpt374; | |
1602 | break; | |
1603 | case 5: | |
1604 | info = &hpt372n; | |
1605 | break; | |
1606 | } | |
1607 | ||
1608 | d = hpt366_chipsets[idx]; | |
1609 | ||
1610 | d.name = info->chip_name; | |
1611 | d.udma_mask = info->udma_mask; | |
1612 | ||
282037f1 | 1613 | pci_set_drvdata(dev, (void *)info); |
fbf47840 BZ |
1614 | |
1615 | if (info == &hpt36x || info == &hpt374) | |
1616 | dev2 = pci_get_slot(dev->bus, dev->devfn + 1); | |
1617 | ||
1618 | if (dev2) { | |
1619 | int ret; | |
1620 | ||
282037f1 | 1621 | pci_set_drvdata(dev2, (void *)info); |
fbf47840 BZ |
1622 | |
1623 | if (info == &hpt374) | |
1624 | hpt374_init(dev, dev2); | |
1625 | else { | |
1626 | if (hpt36x_init(dev, dev2)) | |
1627 | d.host_flags |= IDE_HFLAG_BOOTABLE; | |
1628 | } | |
1629 | ||
1630 | ret = ide_setup_pci_devices(dev, dev2, &d); | |
1631 | if (ret < 0) | |
1632 | pci_dev_put(dev2); | |
1633 | return ret; | |
1634 | } | |
1da177e4 | 1635 | |
fbf47840 | 1636 | return ide_setup_pci_device(dev, &d); |
1da177e4 LT |
1637 | } |
1638 | ||
9cbcc5e3 BZ |
1639 | static const struct pci_device_id hpt366_pci_tbl[] = { |
1640 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), 0 }, | |
1641 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), 1 }, | |
1642 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), 2 }, | |
1643 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT371), 3 }, | |
1644 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT374), 4 }, | |
1645 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372N), 5 }, | |
1da177e4 LT |
1646 | { 0, }, |
1647 | }; | |
1648 | MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl); | |
1649 | ||
1650 | static struct pci_driver driver = { | |
1651 | .name = "HPT366_IDE", | |
1652 | .id_table = hpt366_pci_tbl, | |
1653 | .probe = hpt366_init_one, | |
1654 | }; | |
1655 | ||
82ab1eec | 1656 | static int __init hpt366_ide_init(void) |
1da177e4 LT |
1657 | { |
1658 | return ide_pci_register_driver(&driver); | |
1659 | } | |
1660 | ||
1661 | module_init(hpt366_ide_init); | |
1662 | ||
1663 | MODULE_AUTHOR("Andre Hedrick"); | |
1664 | MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE"); | |
1665 | MODULE_LICENSE("GPL"); |