aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/ide/hpt366.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ide/hpt366.c')
-rw-r--r--drivers/ide/hpt366.c1643
1 files changed, 1643 insertions, 0 deletions
diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
new file mode 100644
index 000000000000..a7909e9c720e
--- /dev/null
+++ b/drivers/ide/hpt366.c
@@ -0,0 +1,1643 @@
1/*
2 * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
3 * Portions Copyright (C) 2001 Sun Microsystems, Inc.
4 * Portions Copyright (C) 2003 Red Hat Inc
5 * Portions Copyright (C) 2007 Bartlomiej Zolnierkiewicz
6 * Portions Copyright (C) 2005-2008 MontaVista Software, Inc.
7 *
8 * Thanks to HighPoint Technologies for their assistance, and hardware.
9 * Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his
10 * donation of an ABit BP6 mainboard, processor, and memory acellerated
11 * development and support.
12 *
13 *
14 * HighPoint has its own drivers (open source except for the RAID part)
15 * available from http://www.highpoint-tech.com/BIOS%20+%20Driver/.
16 * This may be useful to anyone wanting to work on this driver, however do not
17 * trust them too much since the code tends to become less and less meaningful
18 * as the time passes... :-/
19 *
20 * Note that final HPT370 support was done by force extraction of GPL.
21 *
22 * - add function for getting/setting power status of drive
23 * - the HPT370's state machine can get confused. reset it before each dma
24 * xfer to prevent that from happening.
25 * - reset state engine whenever we get an error.
26 * - check for busmaster state at end of dma.
27 * - use new highpoint timings.
28 * - detect bus speed using highpoint register.
29 * - use pll if we don't have a clock table. added a 66MHz table that's
30 * just 2x the 33MHz table.
31 * - removed turnaround. NOTE: we never want to switch between pll and
32 * pci clocks as the chip can glitch in those cases. the highpoint
33 * approved workaround slows everything down too much to be useful. in
34 * addition, we would have to serialize access to each chip.
35 * Adrian Sun <a.sun@sun.com>
36 *
37 * add drive timings for 66MHz PCI bus,
38 * fix ATA Cable signal detection, fix incorrect /proc info
39 * add /proc display for per-drive PIO/DMA/UDMA mode and
40 * per-channel ATA-33/66 Cable detect.
41 * Duncan Laurie <void@sun.com>
42 *
43 * fixup /proc output for multiple controllers
44 * Tim Hockin <thockin@sun.com>
45 *
46 * On hpt366:
47 * Reset the hpt366 on error, reset on dma
48 * Fix disabling Fast Interrupt hpt366.
49 * Mike Waychison <crlf@sun.com>
50 *
51 * Added support for 372N clocking and clock switching. The 372N needs
52 * different clocks on read/write. This requires overloading rw_disk and
53 * other deeply crazy things. Thanks to <http://www.hoerstreich.de> for
54 * keeping me sane.
55 * Alan Cox <alan@redhat.com>
56 *
57 * - fix the clock turnaround code: it was writing to the wrong ports when
58 * called for the secondary channel, caching the current clock mode per-
59 * channel caused the cached register value to get out of sync with the
60 * actual one, the channels weren't serialized, the turnaround shouldn't
61 * be done on 66 MHz PCI bus
62 * - disable UltraATA/100 for HPT370 by default as the 33 MHz clock being used
63 * does not allow for this speed anyway
64 * - avoid touching disabled channels (e.g. HPT371/N are single channel chips,
65 * their primary channel is kind of virtual, it isn't tied to any pins)
66 * - fix/remove bad/unused timing tables and use one set of tables for the whole
67 * HPT37x chip family; save space by introducing the separate transfer mode
68 * table in which the mode lookup is done
69 * - use f_CNT value saved by the HighPoint BIOS as reading it directly gives
70 * the wrong PCI frequency since DPLL has already been calibrated by BIOS;
71 * read it only from the function 0 of HPT374 chips
72 * - fix the hotswap code: it caused RESET- to glitch when tristating the bus,
73 * and for HPT36x the obsolete HDIO_TRISTATE_HWIF handler was called instead
74 * - pass to init_chipset() handlers a copy of the IDE PCI device structure as
75 * they tamper with its fields
76 * - pass to the init_setup handlers a copy of the ide_pci_device_t structure
77 * since they may tamper with its fields
78 * - prefix the driver startup messages with the real chip name
79 * - claim the extra 240 bytes of I/O space for all chips
80 * - optimize the UltraDMA filtering and the drive list lookup code
81 * - use pci_get_slot() to get to the function 1 of HPT36x/374
82 * - cache offset of the channel's misc. control registers (MCRs) being used
83 * throughout the driver
84 * - only touch the relevant MCR when detecting the cable type on HPT374's
85 * function 1
86 * - rename all the register related variables consistently
87 * - move all the interrupt twiddling code from the speedproc handlers into
88 * init_hwif_hpt366(), also grouping all the DMA related code together there
89 * - merge HPT36x/HPT37x speedproc handlers, fix PIO timing register mask and
90 * separate the UltraDMA and MWDMA masks there to avoid changing PIO timings
91 * when setting an UltraDMA mode
92 * - fix hpt3xx_tune_drive() to set the PIO mode requested, not always select
93 * the best possible one
94 * - clean up DMA timeout handling for HPT370
95 * - switch to using the enumeration type to differ between the numerous chip
96 * variants, matching PCI device/revision ID with the chip type early, at the
97 * init_setup stage
98 * - extend the hpt_info structure to hold the DPLL and PCI clock frequencies,
99 * stop duplicating it for each channel by storing the pointer in the pci_dev
100 * structure: first, at the init_setup stage, point it to a static "template"
101 * with only the chip type and its specific base DPLL frequency, the highest
102 * UltraDMA mode, and the chip settings table pointer filled, then, at the
103 * init_chipset stage, allocate per-chip instance and fill it with the rest
104 * of the necessary information
105 * - get rid of the constant thresholds in the HPT37x PCI clock detection code,
106 * switch to calculating PCI clock frequency based on the chip's base DPLL
107 * frequency
108 * - switch to using the DPLL clock and enable UltraATA/133 mode by default on
109 * anything newer than HPT370/A (except HPT374 that is not capable of this
110 * mode according to the manual)
111 * - fold PCI clock detection and DPLL setup code into init_chipset_hpt366(),
112 * also fixing the interchanged 25/40 MHz PCI clock cases for HPT36x chips;
113 * unify HPT36x/37x timing setup code and the speedproc handlers by joining
114 * the register setting lists into the table indexed by the clock selected
115 * - set the correct hwif->ultra_mask for each individual chip
116 * - add Ultra and MW DMA mode filtering for the HPT37[24] based SATA cards
117 * Sergei Shtylyov, <sshtylyov@ru.mvista.com> or <source@mvista.com>
118 */
119
120#include <linux/types.h>
121#include <linux/module.h>
122#include <linux/kernel.h>
123#include <linux/delay.h>
124#include <linux/blkdev.h>
125#include <linux/interrupt.h>
126#include <linux/pci.h>
127#include <linux/init.h>
128#include <linux/ide.h>
129
130#include <asm/uaccess.h>
131#include <asm/io.h>
132
133#define DRV_NAME "hpt366"
134
135/* various tuning parameters */
136#define HPT_RESET_STATE_ENGINE
137#undef HPT_DELAY_INTERRUPT
138#define HPT_SERIALIZE_IO 0
139
140static const char *quirk_drives[] = {
141 "QUANTUM FIREBALLlct08 08",
142 "QUANTUM FIREBALLP KA6.4",
143 "QUANTUM FIREBALLP LM20.4",
144 "QUANTUM FIREBALLP LM20.5",
145 NULL
146};
147
148static const char *bad_ata100_5[] = {
149 "IBM-DTLA-307075",
150 "IBM-DTLA-307060",
151 "IBM-DTLA-307045",
152 "IBM-DTLA-307030",
153 "IBM-DTLA-307020",
154 "IBM-DTLA-307015",
155 "IBM-DTLA-305040",
156 "IBM-DTLA-305030",
157 "IBM-DTLA-305020",
158 "IC35L010AVER07-0",
159 "IC35L020AVER07-0",
160 "IC35L030AVER07-0",
161 "IC35L040AVER07-0",
162 "IC35L060AVER07-0",
163 "WDC AC310200R",
164 NULL
165};
166
167static const char *bad_ata66_4[] = {
168 "IBM-DTLA-307075",
169 "IBM-DTLA-307060",
170 "IBM-DTLA-307045",
171 "IBM-DTLA-307030",
172 "IBM-DTLA-307020",
173 "IBM-DTLA-307015",
174 "IBM-DTLA-305040",
175 "IBM-DTLA-305030",
176 "IBM-DTLA-305020",
177 "IC35L010AVER07-0",
178 "IC35L020AVER07-0",
179 "IC35L030AVER07-0",
180 "IC35L040AVER07-0",
181 "IC35L060AVER07-0",
182 "WDC AC310200R",
183 "MAXTOR STM3320620A",
184 NULL
185};
186
187static const char *bad_ata66_3[] = {
188 "WDC AC310200R",
189 NULL
190};
191
192static const char *bad_ata33[] = {
193 "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2",
194 "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2",
195 "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4",
196 "Maxtor 90510D4",
197 "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2",
198 "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4",
199 "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2",
200 NULL
201};
202
203static u8 xfer_speeds[] = {
204 XFER_UDMA_6,
205 XFER_UDMA_5,
206 XFER_UDMA_4,
207 XFER_UDMA_3,
208 XFER_UDMA_2,
209 XFER_UDMA_1,
210 XFER_UDMA_0,
211
212 XFER_MW_DMA_2,
213 XFER_MW_DMA_1,
214 XFER_MW_DMA_0,
215
216 XFER_PIO_4,
217 XFER_PIO_3,
218 XFER_PIO_2,
219 XFER_PIO_1,
220 XFER_PIO_0
221};
222
223/* Key for bus clock timings
224 * 36x 37x
225 * bits bits
226 * 0:3 0:3 data_high_time. Inactive time of DIOW_/DIOR_ for PIO and MW DMA.
227 * cycles = value + 1
228 * 4:7 4:8 data_low_time. Active time of DIOW_/DIOR_ for PIO and MW DMA.
229 * cycles = value + 1
230 * 8:11 9:12 cmd_high_time. Inactive time of DIOW_/DIOR_ during task file
231 * register access.
232 * 12:15 13:17 cmd_low_time. Active time of DIOW_/DIOR_ during task file
233 * register access.
234 * 16:18 18:20 udma_cycle_time. Clock cycles for UDMA xfer.
235 * - 21 CLK frequency: 0=ATA clock, 1=dual ATA clock.
236 * 19:21 22:24 pre_high_time. Time to initialize the 1st cycle for PIO and
237 * MW DMA xfer.
238 * 22:24 25:27 cmd_pre_high_time. Time to initialize the 1st PIO cycle for
239 * task file register access.
240 * 28 28 UDMA enable.
241 * 29 29 DMA enable.
242 * 30 30 PIO MST enable. If set, the chip is in bus master mode during
243 * PIO xfer.
244 * 31 31 FIFO enable.
245 */
246
247static u32 forty_base_hpt36x[] = {
248 /* XFER_UDMA_6 */ 0x900fd943,
249 /* XFER_UDMA_5 */ 0x900fd943,
250 /* XFER_UDMA_4 */ 0x900fd943,
251 /* XFER_UDMA_3 */ 0x900ad943,
252 /* XFER_UDMA_2 */ 0x900bd943,
253 /* XFER_UDMA_1 */ 0x9008d943,
254 /* XFER_UDMA_0 */ 0x9008d943,
255
256 /* XFER_MW_DMA_2 */ 0xa008d943,
257 /* XFER_MW_DMA_1 */ 0xa010d955,
258 /* XFER_MW_DMA_0 */ 0xa010d9fc,
259
260 /* XFER_PIO_4 */ 0xc008d963,
261 /* XFER_PIO_3 */ 0xc010d974,
262 /* XFER_PIO_2 */ 0xc010d997,
263 /* XFER_PIO_1 */ 0xc010d9c7,
264 /* XFER_PIO_0 */ 0xc018d9d9
265};
266
267static u32 thirty_three_base_hpt36x[] = {
268 /* XFER_UDMA_6 */ 0x90c9a731,
269 /* XFER_UDMA_5 */ 0x90c9a731,
270 /* XFER_UDMA_4 */ 0x90c9a731,
271 /* XFER_UDMA_3 */ 0x90cfa731,
272 /* XFER_UDMA_2 */ 0x90caa731,
273 /* XFER_UDMA_1 */ 0x90cba731,
274 /* XFER_UDMA_0 */ 0x90c8a731,
275
276 /* XFER_MW_DMA_2 */ 0xa0c8a731,
277 /* XFER_MW_DMA_1 */ 0xa0c8a732, /* 0xa0c8a733 */
278 /* XFER_MW_DMA_0 */ 0xa0c8a797,
279
280 /* XFER_PIO_4 */ 0xc0c8a731,
281 /* XFER_PIO_3 */ 0xc0c8a742,
282 /* XFER_PIO_2 */ 0xc0d0a753,
283 /* XFER_PIO_1 */ 0xc0d0a7a3, /* 0xc0d0a793 */
284 /* XFER_PIO_0 */ 0xc0d0a7aa /* 0xc0d0a7a7 */
285};
286
287static u32 twenty_five_base_hpt36x[] = {
288 /* XFER_UDMA_6 */ 0x90c98521,
289 /* XFER_UDMA_5 */ 0x90c98521,
290 /* XFER_UDMA_4 */ 0x90c98521,
291 /* XFER_UDMA_3 */ 0x90cf8521,
292 /* XFER_UDMA_2 */ 0x90cf8521,
293 /* XFER_UDMA_1 */ 0x90cb8521,
294 /* XFER_UDMA_0 */ 0x90cb8521,
295
296 /* XFER_MW_DMA_2 */ 0xa0ca8521,
297 /* XFER_MW_DMA_1 */ 0xa0ca8532,
298 /* XFER_MW_DMA_0 */ 0xa0ca8575,
299
300 /* XFER_PIO_4 */ 0xc0ca8521,
301 /* XFER_PIO_3 */ 0xc0ca8532,
302 /* XFER_PIO_2 */ 0xc0ca8542,
303 /* XFER_PIO_1 */ 0xc0d08572,
304 /* XFER_PIO_0 */ 0xc0d08585
305};
306
307#if 0
308/* These are the timing tables from the HighPoint open source drivers... */
309static u32 thirty_three_base_hpt37x[] = {
310 /* XFER_UDMA_6 */ 0x12446231, /* 0x12646231 ?? */
311 /* XFER_UDMA_5 */ 0x12446231,
312 /* XFER_UDMA_4 */ 0x12446231,
313 /* XFER_UDMA_3 */ 0x126c6231,
314 /* XFER_UDMA_2 */ 0x12486231,
315 /* XFER_UDMA_1 */ 0x124c6233,
316 /* XFER_UDMA_0 */ 0x12506297,
317
318 /* XFER_MW_DMA_2 */ 0x22406c31,
319 /* XFER_MW_DMA_1 */ 0x22406c33,
320 /* XFER_MW_DMA_0 */ 0x22406c97,
321
322 /* XFER_PIO_4 */ 0x06414e31,
323 /* XFER_PIO_3 */ 0x06414e42,
324 /* XFER_PIO_2 */ 0x06414e53,
325 /* XFER_PIO_1 */ 0x06814e93,
326 /* XFER_PIO_0 */ 0x06814ea7
327};
328
329static u32 fifty_base_hpt37x[] = {
330 /* XFER_UDMA_6 */ 0x12848242,
331 /* XFER_UDMA_5 */ 0x12848242,
332 /* XFER_UDMA_4 */ 0x12ac8242,
333 /* XFER_UDMA_3 */ 0x128c8242,
334 /* XFER_UDMA_2 */ 0x120c8242,
335 /* XFER_UDMA_1 */ 0x12148254,
336 /* XFER_UDMA_0 */ 0x121882ea,
337
338 /* XFER_MW_DMA_2 */ 0x22808242,
339 /* XFER_MW_DMA_1 */ 0x22808254,
340 /* XFER_MW_DMA_0 */ 0x228082ea,
341
342 /* XFER_PIO_4 */ 0x0a81f442,
343 /* XFER_PIO_3 */ 0x0a81f443,
344 /* XFER_PIO_2 */ 0x0a81f454,
345 /* XFER_PIO_1 */ 0x0ac1f465,
346 /* XFER_PIO_0 */ 0x0ac1f48a
347};
348
349static u32 sixty_six_base_hpt37x[] = {
350 /* XFER_UDMA_6 */ 0x1c869c62,
351 /* XFER_UDMA_5 */ 0x1cae9c62, /* 0x1c8a9c62 */
352 /* XFER_UDMA_4 */ 0x1c8a9c62,
353 /* XFER_UDMA_3 */ 0x1c8e9c62,
354 /* XFER_UDMA_2 */ 0x1c929c62,
355 /* XFER_UDMA_1 */ 0x1c9a9c62,
356 /* XFER_UDMA_0 */ 0x1c829c62,
357
358 /* XFER_MW_DMA_2 */ 0x2c829c62,
359 /* XFER_MW_DMA_1 */ 0x2c829c66,
360 /* XFER_MW_DMA_0 */ 0x2c829d2e,
361
362 /* XFER_PIO_4 */ 0x0c829c62,
363 /* XFER_PIO_3 */ 0x0c829c84,
364 /* XFER_PIO_2 */ 0x0c829ca6,
365 /* XFER_PIO_1 */ 0x0d029d26,
366 /* XFER_PIO_0 */ 0x0d029d5e
367};
368#else
369/*
370 * The following are the new timing tables with PIO mode data/taskfile transfer
371 * overclocking fixed...
372 */
373
374/* This table is taken from the HPT370 data manual rev. 1.02 */
375static u32 thirty_three_base_hpt37x[] = {
376 /* XFER_UDMA_6 */ 0x16455031, /* 0x16655031 ?? */
377 /* XFER_UDMA_5 */ 0x16455031,
378 /* XFER_UDMA_4 */ 0x16455031,
379 /* XFER_UDMA_3 */ 0x166d5031,
380 /* XFER_UDMA_2 */ 0x16495031,
381 /* XFER_UDMA_1 */ 0x164d5033,
382 /* XFER_UDMA_0 */ 0x16515097,
383
384 /* XFER_MW_DMA_2 */ 0x26515031,
385 /* XFER_MW_DMA_1 */ 0x26515033,
386 /* XFER_MW_DMA_0 */ 0x26515097,
387
388 /* XFER_PIO_4 */ 0x06515021,
389 /* XFER_PIO_3 */ 0x06515022,
390 /* XFER_PIO_2 */ 0x06515033,
391 /* XFER_PIO_1 */ 0x06915065,
392 /* XFER_PIO_0 */ 0x06d1508a
393};
394
395static u32 fifty_base_hpt37x[] = {
396 /* XFER_UDMA_6 */ 0x1a861842,
397 /* XFER_UDMA_5 */ 0x1a861842,
398 /* XFER_UDMA_4 */ 0x1aae1842,
399 /* XFER_UDMA_3 */ 0x1a8e1842,
400 /* XFER_UDMA_2 */ 0x1a0e1842,
401 /* XFER_UDMA_1 */ 0x1a161854,
402 /* XFER_UDMA_0 */ 0x1a1a18ea,
403
404 /* XFER_MW_DMA_2 */ 0x2a821842,
405 /* XFER_MW_DMA_1 */ 0x2a821854,
406 /* XFER_MW_DMA_0 */ 0x2a8218ea,
407
408 /* XFER_PIO_4 */ 0x0a821842,
409 /* XFER_PIO_3 */ 0x0a821843,
410 /* XFER_PIO_2 */ 0x0a821855,
411 /* XFER_PIO_1 */ 0x0ac218a8,
412 /* XFER_PIO_0 */ 0x0b02190c
413};
414
415static u32 sixty_six_base_hpt37x[] = {
416 /* XFER_UDMA_6 */ 0x1c86fe62,
417 /* XFER_UDMA_5 */ 0x1caefe62, /* 0x1c8afe62 */
418 /* XFER_UDMA_4 */ 0x1c8afe62,
419 /* XFER_UDMA_3 */ 0x1c8efe62,
420 /* XFER_UDMA_2 */ 0x1c92fe62,
421 /* XFER_UDMA_1 */ 0x1c9afe62,
422 /* XFER_UDMA_0 */ 0x1c82fe62,
423
424 /* XFER_MW_DMA_2 */ 0x2c82fe62,
425 /* XFER_MW_DMA_1 */ 0x2c82fe66,
426 /* XFER_MW_DMA_0 */ 0x2c82ff2e,
427
428 /* XFER_PIO_4 */ 0x0c82fe62,
429 /* XFER_PIO_3 */ 0x0c82fe84,
430 /* XFER_PIO_2 */ 0x0c82fea6,
431 /* XFER_PIO_1 */ 0x0d02ff26,
432 /* XFER_PIO_0 */ 0x0d42ff7f
433};
434#endif
435
436#define HPT366_DEBUG_DRIVE_INFO 0
437#define HPT371_ALLOW_ATA133_6 1
438#define HPT302_ALLOW_ATA133_6 1
439#define HPT372_ALLOW_ATA133_6 1
440#define HPT370_ALLOW_ATA100_5 0
441#define HPT366_ALLOW_ATA66_4 1
442#define HPT366_ALLOW_ATA66_3 1
443#define HPT366_MAX_DEVS 8
444
445/* Supported ATA clock frequencies */
446enum ata_clock {
447 ATA_CLOCK_25MHZ,
448 ATA_CLOCK_33MHZ,
449 ATA_CLOCK_40MHZ,
450 ATA_CLOCK_50MHZ,
451 ATA_CLOCK_66MHZ,
452 NUM_ATA_CLOCKS
453};
454
455struct hpt_timings {
456 u32 pio_mask;
457 u32 dma_mask;
458 u32 ultra_mask;
459 u32 *clock_table[NUM_ATA_CLOCKS];
460};
461
462/*
463 * Hold all the HighPoint chip information in one place.
464 */
465
466struct hpt_info {
467 char *chip_name; /* Chip name */
468 u8 chip_type; /* Chip type */
469 u8 udma_mask; /* Allowed UltraDMA modes mask. */
470 u8 dpll_clk; /* DPLL clock in MHz */
471 u8 pci_clk; /* PCI clock in MHz */
472 struct hpt_timings *timings; /* Chipset timing data */
473 u8 clock; /* ATA clock selected */
474};
475
476/* Supported HighPoint chips */
477enum {
478 HPT36x,
479 HPT370,
480 HPT370A,
481 HPT374,
482 HPT372,
483 HPT372A,
484 HPT302,
485 HPT371,
486 HPT372N,
487 HPT302N,
488 HPT371N
489};
490
491static struct hpt_timings hpt36x_timings = {
492 .pio_mask = 0xc1f8ffff,
493 .dma_mask = 0x303800ff,
494 .ultra_mask = 0x30070000,
495 .clock_table = {
496 [ATA_CLOCK_25MHZ] = twenty_five_base_hpt36x,
497 [ATA_CLOCK_33MHZ] = thirty_three_base_hpt36x,
498 [ATA_CLOCK_40MHZ] = forty_base_hpt36x,
499 [ATA_CLOCK_50MHZ] = NULL,
500 [ATA_CLOCK_66MHZ] = NULL
501 }
502};
503
504static struct hpt_timings hpt37x_timings = {
505 .pio_mask = 0xcfc3ffff,
506 .dma_mask = 0x31c001ff,
507 .ultra_mask = 0x303c0000,
508 .clock_table = {
509 [ATA_CLOCK_25MHZ] = NULL,
510 [ATA_CLOCK_33MHZ] = thirty_three_base_hpt37x,
511 [ATA_CLOCK_40MHZ] = NULL,
512 [ATA_CLOCK_50MHZ] = fifty_base_hpt37x,
513 [ATA_CLOCK_66MHZ] = sixty_six_base_hpt37x
514 }
515};
516
517static const struct hpt_info hpt36x __devinitdata = {
518 .chip_name = "HPT36x",
519 .chip_type = HPT36x,
520 .udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2,
521 .dpll_clk = 0, /* no DPLL */
522 .timings = &hpt36x_timings
523};
524
525static const struct hpt_info hpt370 __devinitdata = {
526 .chip_name = "HPT370",
527 .chip_type = HPT370,
528 .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
529 .dpll_clk = 48,
530 .timings = &hpt37x_timings
531};
532
533static const struct hpt_info hpt370a __devinitdata = {
534 .chip_name = "HPT370A",
535 .chip_type = HPT370A,
536 .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
537 .dpll_clk = 48,
538 .timings = &hpt37x_timings
539};
540
541static const struct hpt_info hpt374 __devinitdata = {
542 .chip_name = "HPT374",
543 .chip_type = HPT374,
544 .udma_mask = ATA_UDMA5,
545 .dpll_clk = 48,
546 .timings = &hpt37x_timings
547};
548
549static const struct hpt_info hpt372 __devinitdata = {
550 .chip_name = "HPT372",
551 .chip_type = HPT372,
552 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
553 .dpll_clk = 55,
554 .timings = &hpt37x_timings
555};
556
557static const struct hpt_info hpt372a __devinitdata = {
558 .chip_name = "HPT372A",
559 .chip_type = HPT372A,
560 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
561 .dpll_clk = 66,
562 .timings = &hpt37x_timings
563};
564
565static const struct hpt_info hpt302 __devinitdata = {
566 .chip_name = "HPT302",
567 .chip_type = HPT302,
568 .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
569 .dpll_clk = 66,
570 .timings = &hpt37x_timings
571};
572
573static const struct hpt_info hpt371 __devinitdata = {
574 .chip_name = "HPT371",
575 .chip_type = HPT371,
576 .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
577 .dpll_clk = 66,
578 .timings = &hpt37x_timings
579};
580
581static const struct hpt_info hpt372n __devinitdata = {
582 .chip_name = "HPT372N",
583 .chip_type = HPT372N,
584 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
585 .dpll_clk = 77,
586 .timings = &hpt37x_timings
587};
588
589static const struct hpt_info hpt302n __devinitdata = {
590 .chip_name = "HPT302N",
591 .chip_type = HPT302N,
592 .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
593 .dpll_clk = 77,
594 .timings = &hpt37x_timings
595};
596
597static const struct hpt_info hpt371n __devinitdata = {
598 .chip_name = "HPT371N",
599 .chip_type = HPT371N,
600 .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
601 .dpll_clk = 77,
602 .timings = &hpt37x_timings
603};
604
605static int check_in_drive_list(ide_drive_t *drive, const char **list)
606{
607 char *m = (char *)&drive->id[ATA_ID_PROD];
608
609 while (*list)
610 if (!strcmp(*list++, m))
611 return 1;
612 return 0;
613}
614
615static struct hpt_info *hpt3xx_get_info(struct device *dev)
616{
617 struct ide_host *host = dev_get_drvdata(dev);
618 struct hpt_info *info = (struct hpt_info *)host->host_priv;
619
620 return dev == host->dev[1] ? info + 1 : info;
621}
622
623/*
624 * The Marvell bridge chips used on the HighPoint SATA cards do not seem
625 * to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes...
626 */
627
628static u8 hpt3xx_udma_filter(ide_drive_t *drive)
629{
630 ide_hwif_t *hwif = HWIF(drive);
631 struct hpt_info *info = hpt3xx_get_info(hwif->dev);
632 u8 mask = hwif->ultra_mask;
633
634 switch (info->chip_type) {
635 case HPT36x:
636 if (!HPT366_ALLOW_ATA66_4 ||
637 check_in_drive_list(drive, bad_ata66_4))
638 mask = ATA_UDMA3;
639
640 if (!HPT366_ALLOW_ATA66_3 ||
641 check_in_drive_list(drive, bad_ata66_3))
642 mask = ATA_UDMA2;
643 break;
644 case HPT370:
645 if (!HPT370_ALLOW_ATA100_5 ||
646 check_in_drive_list(drive, bad_ata100_5))
647 mask = ATA_UDMA4;
648 break;
649 case HPT370A:
650 if (!HPT370_ALLOW_ATA100_5 ||
651 check_in_drive_list(drive, bad_ata100_5))
652 return ATA_UDMA4;
653 case HPT372 :
654 case HPT372A:
655 case HPT372N:
656 case HPT374 :
657 if (ata_id_is_sata(drive->id))
658 mask &= ~0x0e;
659 /* Fall thru */
660 default:
661 return mask;
662 }
663
664 return check_in_drive_list(drive, bad_ata33) ? 0x00 : mask;
665}
666
667static u8 hpt3xx_mdma_filter(ide_drive_t *drive)
668{
669 ide_hwif_t *hwif = HWIF(drive);
670 struct hpt_info *info = hpt3xx_get_info(hwif->dev);
671
672 switch (info->chip_type) {
673 case HPT372 :
674 case HPT372A:
675 case HPT372N:
676 case HPT374 :
677 if (ata_id_is_sata(drive->id))
678 return 0x00;
679 /* Fall thru */
680 default:
681 return 0x07;
682 }
683}
684
685static u32 get_speed_setting(u8 speed, struct hpt_info *info)
686{
687 int i;
688
689 /*
690 * Lookup the transfer mode table to get the index into
691 * the timing table.
692 *
693 * NOTE: For XFER_PIO_SLOW, PIO mode 0 timings will be used.
694 */
695 for (i = 0; i < ARRAY_SIZE(xfer_speeds) - 1; i++)
696 if (xfer_speeds[i] == speed)
697 break;
698
699 return info->timings->clock_table[info->clock][i];
700}
701
702static void hpt3xx_set_mode(ide_drive_t *drive, const u8 speed)
703{
704 ide_hwif_t *hwif = drive->hwif;
705 struct pci_dev *dev = to_pci_dev(hwif->dev);
706 struct hpt_info *info = hpt3xx_get_info(hwif->dev);
707 struct hpt_timings *t = info->timings;
708 u8 itr_addr = 0x40 + (drive->dn * 4);
709 u32 old_itr = 0;
710 u32 new_itr = get_speed_setting(speed, info);
711 u32 itr_mask = speed < XFER_MW_DMA_0 ? t->pio_mask :
712 (speed < XFER_UDMA_0 ? t->dma_mask :
713 t->ultra_mask);
714
715 pci_read_config_dword(dev, itr_addr, &old_itr);
716 new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask);
717 /*
718 * Disable on-chip PIO FIFO/buffer (and PIO MST mode as well)
719 * to avoid problems handling I/O errors later
720 */
721 new_itr &= ~0xc0000000;
722
723 pci_write_config_dword(dev, itr_addr, new_itr);
724}
725
726static void hpt3xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
727{
728 hpt3xx_set_mode(drive, XFER_PIO_0 + pio);
729}
730
731static void hpt3xx_quirkproc(ide_drive_t *drive)
732{
733 char *m = (char *)&drive->id[ATA_ID_PROD];
734 const char **list = quirk_drives;
735
736 while (*list)
737 if (strstr(m, *list++)) {
738 drive->quirk_list = 1;
739 return;
740 }
741
742 drive->quirk_list = 0;
743}
744
745static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
746{
747 ide_hwif_t *hwif = HWIF(drive);
748 struct pci_dev *dev = to_pci_dev(hwif->dev);
749 struct hpt_info *info = hpt3xx_get_info(hwif->dev);
750
751 if (drive->quirk_list == 0)
752 return;
753
754 if (info->chip_type >= HPT370) {
755 u8 scr1 = 0;
756
757 pci_read_config_byte(dev, 0x5a, &scr1);
758 if (((scr1 & 0x10) >> 4) != mask) {
759 if (mask)
760 scr1 |= 0x10;
761 else
762 scr1 &= ~0x10;
763 pci_write_config_byte(dev, 0x5a, scr1);
764 }
765 } else if (mask)
766 disable_irq(hwif->irq);
767 else
768 enable_irq(hwif->irq);
769}
770
771/*
772 * This is specific to the HPT366 UDMA chipset
773 * by HighPoint|Triones Technologies, Inc.
774 */
775static void hpt366_dma_lost_irq(ide_drive_t *drive)
776{
777 struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
778 u8 mcr1 = 0, mcr3 = 0, scr1 = 0;
779
780 pci_read_config_byte(dev, 0x50, &mcr1);
781 pci_read_config_byte(dev, 0x52, &mcr3);
782 pci_read_config_byte(dev, 0x5a, &scr1);
783 printk("%s: (%s) mcr1=0x%02x, mcr3=0x%02x, scr1=0x%02x\n",
784 drive->name, __func__, mcr1, mcr3, scr1);
785 if (scr1 & 0x10)
786 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
787 ide_dma_lost_irq(drive);
788}
789
790static void hpt370_clear_engine(ide_drive_t *drive)
791{
792 ide_hwif_t *hwif = HWIF(drive);
793 struct pci_dev *dev = to_pci_dev(hwif->dev);
794
795 pci_write_config_byte(dev, hwif->select_data, 0x37);
796 udelay(10);
797}
798
799static void hpt370_irq_timeout(ide_drive_t *drive)
800{
801 ide_hwif_t *hwif = HWIF(drive);
802 struct pci_dev *dev = to_pci_dev(hwif->dev);
803 u16 bfifo = 0;
804 u8 dma_cmd;
805
806 pci_read_config_word(dev, hwif->select_data + 2, &bfifo);
807 printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff);
808
809 /* get DMA command mode */
810 dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
811 /* stop DMA */
812 outb(dma_cmd & ~0x1, hwif->dma_base + ATA_DMA_CMD);
813 hpt370_clear_engine(drive);
814}
815
816static void hpt370_dma_start(ide_drive_t *drive)
817{
818#ifdef HPT_RESET_STATE_ENGINE
819 hpt370_clear_engine(drive);
820#endif
821 ide_dma_start(drive);
822}
823
824static int hpt370_dma_end(ide_drive_t *drive)
825{
826 ide_hwif_t *hwif = HWIF(drive);
827 u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
828
829 if (dma_stat & 0x01) {
830 /* wait a little */
831 udelay(20);
832 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
833 if (dma_stat & 0x01)
834 hpt370_irq_timeout(drive);
835 }
836 return ide_dma_end(drive);
837}
838
839static void hpt370_dma_timeout(ide_drive_t *drive)
840{
841 hpt370_irq_timeout(drive);
842 ide_dma_timeout(drive);
843}
844
845/* returns 1 if DMA IRQ issued, 0 otherwise */
846static int hpt374_dma_test_irq(ide_drive_t *drive)
847{
848 ide_hwif_t *hwif = HWIF(drive);
849 struct pci_dev *dev = to_pci_dev(hwif->dev);
850 u16 bfifo = 0;
851 u8 dma_stat;
852
853 pci_read_config_word(dev, hwif->select_data + 2, &bfifo);
854 if (bfifo & 0x1FF) {
855// printk("%s: %d bytes in FIFO\n", drive->name, bfifo);
856 return 0;
857 }
858
859 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
860 /* return 1 if INTR asserted */
861 if (dma_stat & 4)
862 return 1;
863
864 return 0;
865}
866
867static int hpt374_dma_end(ide_drive_t *drive)
868{
869 ide_hwif_t *hwif = HWIF(drive);
870 struct pci_dev *dev = to_pci_dev(hwif->dev);
871 u8 mcr = 0, mcr_addr = hwif->select_data;
872 u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01;
873
874 pci_read_config_byte(dev, 0x6a, &bwsr);
875 pci_read_config_byte(dev, mcr_addr, &mcr);
876 if (bwsr & mask)
877 pci_write_config_byte(dev, mcr_addr, mcr | 0x30);
878 return ide_dma_end(drive);
879}
880
881/**
882 * hpt3xxn_set_clock - perform clock switching dance
883 * @hwif: hwif to switch
884 * @mode: clocking mode (0x21 for write, 0x23 otherwise)
885 *
886 * Switch the DPLL clock on the HPT3xxN devices. This is a right mess.
887 */
888
889static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode)
890{
891 unsigned long base = hwif->extra_base;
892 u8 scr2 = inb(base + 0x6b);
893
894 if ((scr2 & 0x7f) == mode)
895 return;
896
897 /* Tristate the bus */
898 outb(0x80, base + 0x63);
899 outb(0x80, base + 0x67);
900
901 /* Switch clock and reset channels */
902 outb(mode, base + 0x6b);
903 outb(0xc0, base + 0x69);
904
905 /*
906 * Reset the state machines.
907 * NOTE: avoid accidentally enabling the disabled channels.
908 */
909 outb(inb(base + 0x60) | 0x32, base + 0x60);
910 outb(inb(base + 0x64) | 0x32, base + 0x64);
911
912 /* Complete reset */
913 outb(0x00, base + 0x69);
914
915 /* Reconnect channels to bus */
916 outb(0x00, base + 0x63);
917 outb(0x00, base + 0x67);
918}
919
920/**
921 * hpt3xxn_rw_disk - prepare for I/O
922 * @drive: drive for command
923 * @rq: block request structure
924 *
925 * This is called when a disk I/O is issued to HPT3xxN.
926 * We need it because of the clock switching.
927 */
928
929static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq)
930{
931 hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21);
932}
933
934/**
935 * hpt37x_calibrate_dpll - calibrate the DPLL
936 * @dev: PCI device
937 *
938 * Perform a calibration cycle on the DPLL.
939 * Returns 1 if this succeeds
940 */
941static int hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f_high)
942{
943 u32 dpll = (f_high << 16) | f_low | 0x100;
944 u8 scr2;
945 int i;
946
947 pci_write_config_dword(dev, 0x5c, dpll);
948
949 /* Wait for oscillator ready */
950 for(i = 0; i < 0x5000; ++i) {
951 udelay(50);
952 pci_read_config_byte(dev, 0x5b, &scr2);
953 if (scr2 & 0x80)
954 break;
955 }
956 /* See if it stays ready (we'll just bail out if it's not yet) */
957 for(i = 0; i < 0x1000; ++i) {
958 pci_read_config_byte(dev, 0x5b, &scr2);
959 /* DPLL destabilized? */
960 if(!(scr2 & 0x80))
961 return 0;
962 }
963 /* Turn off tuning, we have the DPLL set */
964 pci_read_config_dword (dev, 0x5c, &dpll);
965 pci_write_config_dword(dev, 0x5c, (dpll & ~0x100));
966 return 1;
967}
968
969static void hpt3xx_disable_fast_irq(struct pci_dev *dev, u8 mcr_addr)
970{
971 struct ide_host *host = pci_get_drvdata(dev);
972 struct hpt_info *info = host->host_priv + (&dev->dev == host->dev[1]);
973 u8 chip_type = info->chip_type;
974 u8 new_mcr, old_mcr = 0;
975
976 /*
977 * Disable the "fast interrupt" prediction. Don't hold off
978 * on interrupts. (== 0x01 despite what the docs say)
979 */
980 pci_read_config_byte(dev, mcr_addr + 1, &old_mcr);
981
982 if (chip_type >= HPT374)
983 new_mcr = old_mcr & ~0x07;
984 else if (chip_type >= HPT370) {
985 new_mcr = old_mcr;
986 new_mcr &= ~0x02;
987#ifdef HPT_DELAY_INTERRUPT
988 new_mcr &= ~0x01;
989#else
990 new_mcr |= 0x01;
991#endif
992 } else /* HPT366 and HPT368 */
993 new_mcr = old_mcr & ~0x80;
994
995 if (new_mcr != old_mcr)
996 pci_write_config_byte(dev, mcr_addr + 1, new_mcr);
997}
998
999static unsigned int init_chipset_hpt366(struct pci_dev *dev)
1000{
1001 unsigned long io_base = pci_resource_start(dev, 4);
1002 struct hpt_info *info = hpt3xx_get_info(&dev->dev);
1003 const char *name = DRV_NAME;
1004 u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */
1005 u8 chip_type;
1006 enum ata_clock clock;
1007
1008 chip_type = info->chip_type;
1009
1010 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
1011 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
1012 pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
1013 pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
1014
1015 /*
1016 * First, try to estimate the PCI clock frequency...
1017 */
1018 if (chip_type >= HPT370) {
1019 u8 scr1 = 0;
1020 u16 f_cnt = 0;
1021 u32 temp = 0;
1022
1023 /* Interrupt force enable. */
1024 pci_read_config_byte(dev, 0x5a, &scr1);
1025 if (scr1 & 0x10)
1026 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
1027
1028 /*
1029 * HighPoint does this for HPT372A.
1030 * NOTE: This register is only writeable via I/O space.
1031 */
1032 if (chip_type == HPT372A)
1033 outb(0x0e, io_base + 0x9c);
1034
1035 /*
1036 * Default to PCI clock. Make sure MA15/16 are set to output
1037 * to prevent drives having problems with 40-pin cables.
1038 */
1039 pci_write_config_byte(dev, 0x5b, 0x23);
1040
1041 /*
1042 * We'll have to read f_CNT value in order to determine
1043 * the PCI clock frequency according to the following ratio:
1044 *
1045 * f_CNT = Fpci * 192 / Fdpll
1046 *
1047 * First try reading the register in which the HighPoint BIOS
1048 * saves f_CNT value before reprogramming the DPLL from its
1049 * default setting (which differs for the various chips).
1050 *
1051 * NOTE: This register is only accessible via I/O space;
1052 * HPT374 BIOS only saves it for the function 0, so we have to
1053 * always read it from there -- no need to check the result of
1054 * pci_get_slot() for the function 0 as the whole device has
1055 * been already "pinned" (via function 1) in init_setup_hpt374()
1056 */
1057 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1058 struct pci_dev *dev1 = pci_get_slot(dev->bus,
1059 dev->devfn - 1);
1060 unsigned long io_base = pci_resource_start(dev1, 4);
1061
1062 temp = inl(io_base + 0x90);
1063 pci_dev_put(dev1);
1064 } else
1065 temp = inl(io_base + 0x90);
1066
1067 /*
1068 * In case the signature check fails, we'll have to
1069 * resort to reading the f_CNT register itself in hopes
1070 * that nobody has touched the DPLL yet...
1071 */
1072 if ((temp & 0xFFFFF000) != 0xABCDE000) {
1073 int i;
1074
1075 printk(KERN_WARNING "%s %s: no clock data saved by "
1076 "BIOS\n", name, pci_name(dev));
1077
1078 /* Calculate the average value of f_CNT. */
1079 for (temp = i = 0; i < 128; i++) {
1080 pci_read_config_word(dev, 0x78, &f_cnt);
1081 temp += f_cnt & 0x1ff;
1082 mdelay(1);
1083 }
1084 f_cnt = temp / 128;
1085 } else
1086 f_cnt = temp & 0x1ff;
1087
1088 dpll_clk = info->dpll_clk;
1089 pci_clk = (f_cnt * dpll_clk) / 192;
1090
1091 /* Clamp PCI clock to bands. */
1092 if (pci_clk < 40)
1093 pci_clk = 33;
1094 else if(pci_clk < 45)
1095 pci_clk = 40;
1096 else if(pci_clk < 55)
1097 pci_clk = 50;
1098 else
1099 pci_clk = 66;
1100
1101 printk(KERN_INFO "%s %s: DPLL base: %d MHz, f_CNT: %d, "
1102 "assuming %d MHz PCI\n", name, pci_name(dev),
1103 dpll_clk, f_cnt, pci_clk);
1104 } else {
1105 u32 itr1 = 0;
1106
1107 pci_read_config_dword(dev, 0x40, &itr1);
1108
1109 /* Detect PCI clock by looking at cmd_high_time. */
1110 switch((itr1 >> 8) & 0x07) {
1111 case 0x09:
1112 pci_clk = 40;
1113 break;
1114 case 0x05:
1115 pci_clk = 25;
1116 break;
1117 case 0x07:
1118 default:
1119 pci_clk = 33;
1120 break;
1121 }
1122 }
1123
1124 /* Let's assume we'll use PCI clock for the ATA clock... */
1125 switch (pci_clk) {
1126 case 25:
1127 clock = ATA_CLOCK_25MHZ;
1128 break;
1129 case 33:
1130 default:
1131 clock = ATA_CLOCK_33MHZ;
1132 break;
1133 case 40:
1134 clock = ATA_CLOCK_40MHZ;
1135 break;
1136 case 50:
1137 clock = ATA_CLOCK_50MHZ;
1138 break;
1139 case 66:
1140 clock = ATA_CLOCK_66MHZ;
1141 break;
1142 }
1143
1144 /*
1145 * Only try the DPLL if we don't have a table for the PCI clock that
1146 * we are running at for HPT370/A, always use it for anything newer...
1147 *
1148 * NOTE: Using the internal DPLL results in slow reads on 33 MHz PCI.
1149 * We also don't like using the DPLL because this causes glitches
1150 * on PRST-/SRST- when the state engine gets reset...
1151 */
1152 if (chip_type >= HPT374 || info->timings->clock_table[clock] == NULL) {
1153 u16 f_low, delta = pci_clk < 50 ? 2 : 4;
1154 int adjust;
1155
1156 /*
1157 * Select 66 MHz DPLL clock only if UltraATA/133 mode is
1158 * supported/enabled, use 50 MHz DPLL clock otherwise...
1159 */
1160 if (info->udma_mask == ATA_UDMA6) {
1161 dpll_clk = 66;
1162 clock = ATA_CLOCK_66MHZ;
1163 } else if (dpll_clk) { /* HPT36x chips don't have DPLL */
1164 dpll_clk = 50;
1165 clock = ATA_CLOCK_50MHZ;
1166 }
1167
1168 if (info->timings->clock_table[clock] == NULL) {
1169 printk(KERN_ERR "%s %s: unknown bus timing!\n",
1170 name, pci_name(dev));
1171 return -EIO;
1172 }
1173
1174 /* Select the DPLL clock. */
1175 pci_write_config_byte(dev, 0x5b, 0x21);
1176
1177 /*
1178 * Adjust the DPLL based upon PCI clock, enable it,
1179 * and wait for stabilization...
1180 */
1181 f_low = (pci_clk * 48) / dpll_clk;
1182
1183 for (adjust = 0; adjust < 8; adjust++) {
1184 if(hpt37x_calibrate_dpll(dev, f_low, f_low + delta))
1185 break;
1186
1187 /*
1188 * See if it'll settle at a fractionally different clock
1189 */
1190 if (adjust & 1)
1191 f_low -= adjust >> 1;
1192 else
1193 f_low += adjust >> 1;
1194 }
1195 if (adjust == 8) {
1196 printk(KERN_ERR "%s %s: DPLL did not stabilize!\n",
1197 name, pci_name(dev));
1198 return -EIO;
1199 }
1200
1201 printk(KERN_INFO "%s %s: using %d MHz DPLL clock\n",
1202 name, pci_name(dev), dpll_clk);
1203 } else {
1204 /* Mark the fact that we're not using the DPLL. */
1205 dpll_clk = 0;
1206
1207 printk(KERN_INFO "%s %s: using %d MHz PCI clock\n",
1208 name, pci_name(dev), pci_clk);
1209 }
1210
1211 /* Store the clock frequencies. */
1212 info->dpll_clk = dpll_clk;
1213 info->pci_clk = pci_clk;
1214 info->clock = clock;
1215
1216 if (chip_type >= HPT370) {
1217 u8 mcr1, mcr4;
1218
1219 /*
1220 * Reset the state engines.
1221 * NOTE: Avoid accidentally enabling the disabled channels.
1222 */
1223 pci_read_config_byte (dev, 0x50, &mcr1);
1224 pci_read_config_byte (dev, 0x54, &mcr4);
1225 pci_write_config_byte(dev, 0x50, (mcr1 | 0x32));
1226 pci_write_config_byte(dev, 0x54, (mcr4 | 0x32));
1227 udelay(100);
1228 }
1229
1230 /*
1231 * On HPT371N, if ATA clock is 66 MHz we must set bit 2 in
1232 * the MISC. register to stretch the UltraDMA Tss timing.
1233 * NOTE: This register is only writeable via I/O space.
1234 */
1235 if (chip_type == HPT371N && clock == ATA_CLOCK_66MHZ)
1236 outb(inb(io_base + 0x9c) | 0x04, io_base + 0x9c);
1237
1238 hpt3xx_disable_fast_irq(dev, 0x50);
1239 hpt3xx_disable_fast_irq(dev, 0x54);
1240
1241 return dev->irq;
1242}
1243
1244static u8 hpt3xx_cable_detect(ide_hwif_t *hwif)
1245{
1246 struct pci_dev *dev = to_pci_dev(hwif->dev);
1247 struct hpt_info *info = hpt3xx_get_info(hwif->dev);
1248 u8 chip_type = info->chip_type;
1249 u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
1250
1251 /*
1252 * The HPT37x uses the CBLID pins as outputs for MA15/MA16
1253 * address lines to access an external EEPROM. To read valid
1254 * cable detect state the pins must be enabled as inputs.
1255 */
1256 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1257 /*
1258 * HPT374 PCI function 1
1259 * - set bit 15 of reg 0x52 to enable TCBLID as input
1260 * - set bit 15 of reg 0x56 to enable FCBLID as input
1261 */
1262 u8 mcr_addr = hwif->select_data + 2;
1263 u16 mcr;
1264
1265 pci_read_config_word(dev, mcr_addr, &mcr);
1266 pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
1267 /* now read cable id register */
1268 pci_read_config_byte(dev, 0x5a, &scr1);
1269 pci_write_config_word(dev, mcr_addr, mcr);
1270 } else if (chip_type >= HPT370) {
1271 /*
1272 * HPT370/372 and 374 pcifn 0
1273 * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
1274 */
1275 u8 scr2 = 0;
1276
1277 pci_read_config_byte(dev, 0x5b, &scr2);
1278 pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
1279 /* now read cable id register */
1280 pci_read_config_byte(dev, 0x5a, &scr1);
1281 pci_write_config_byte(dev, 0x5b, scr2);
1282 } else
1283 pci_read_config_byte(dev, 0x5a, &scr1);
1284
1285 return (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
1286}
1287
1288static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
1289{
1290 struct hpt_info *info = hpt3xx_get_info(hwif->dev);
1291 int serialize = HPT_SERIALIZE_IO;
1292 u8 chip_type = info->chip_type;
1293
1294 /* Cache the channel's MISC. control registers' offset */
1295 hwif->select_data = hwif->channel ? 0x54 : 0x50;
1296
1297 /*
1298 * HPT3xxN chips have some complications:
1299 *
1300 * - on 33 MHz PCI we must clock switch
1301 * - on 66 MHz PCI we must NOT use the PCI clock
1302 */
1303 if (chip_type >= HPT372N && info->dpll_clk && info->pci_clk < 66) {
1304 /*
1305 * Clock is shared between the channels,
1306 * so we'll have to serialize them... :-(
1307 */
1308 serialize = 1;
1309 hwif->rw_disk = &hpt3xxn_rw_disk;
1310 }
1311
1312 /* Serialize access to this device if needed */
1313 if (serialize && hwif->mate)
1314 hwif->serialized = hwif->mate->serialized = 1;
1315}
1316
1317static int __devinit init_dma_hpt366(ide_hwif_t *hwif,
1318 const struct ide_port_info *d)
1319{
1320 struct pci_dev *dev = to_pci_dev(hwif->dev);
1321 unsigned long flags, base = ide_pci_dma_base(hwif, d);
1322 u8 dma_old, dma_new, masterdma = 0, slavedma = 0;
1323
1324 if (base == 0)
1325 return -1;
1326
1327 hwif->dma_base = base;
1328
1329 if (ide_pci_check_simplex(hwif, d) < 0)
1330 return -1;
1331
1332 if (ide_pci_set_master(dev, d->name) < 0)
1333 return -1;
1334
1335 dma_old = inb(base + 2);
1336
1337 local_irq_save(flags);
1338
1339 dma_new = dma_old;
1340 pci_read_config_byte(dev, hwif->channel ? 0x4b : 0x43, &masterdma);
1341 pci_read_config_byte(dev, hwif->channel ? 0x4f : 0x47, &slavedma);
1342
1343 if (masterdma & 0x30) dma_new |= 0x20;
1344 if ( slavedma & 0x30) dma_new |= 0x40;
1345 if (dma_new != dma_old)
1346 outb(dma_new, base + 2);
1347
1348 local_irq_restore(flags);
1349
1350 printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n",
1351 hwif->name, base, base + 7);
1352
1353 hwif->extra_base = base + (hwif->channel ? 8 : 16);
1354
1355 if (ide_allocate_dma_engine(hwif))
1356 return -1;
1357
1358 hwif->dma_ops = &sff_dma_ops;
1359
1360 return 0;
1361}
1362
1363static void __devinit hpt374_init(struct pci_dev *dev, struct pci_dev *dev2)
1364{
1365 if (dev2->irq != dev->irq) {
1366 /* FIXME: we need a core pci_set_interrupt() */
1367 dev2->irq = dev->irq;
1368 printk(KERN_INFO DRV_NAME " %s: PCI config space interrupt "
1369 "fixed\n", pci_name(dev2));
1370 }
1371}
1372
1373static void __devinit hpt371_init(struct pci_dev *dev)
1374{
1375 u8 mcr1 = 0;
1376
1377 /*
1378 * HPT371 chips physically have only one channel, the secondary one,
1379 * but the primary channel registers do exist! Go figure...
1380 * So, we manually disable the non-existing channel here
1381 * (if the BIOS hasn't done this already).
1382 */
1383 pci_read_config_byte(dev, 0x50, &mcr1);
1384 if (mcr1 & 0x04)
1385 pci_write_config_byte(dev, 0x50, mcr1 & ~0x04);
1386}
1387
1388static int __devinit hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2)
1389{
1390 u8 mcr1 = 0, pin1 = 0, pin2 = 0;
1391
1392 /*
1393 * Now we'll have to force both channels enabled if
1394 * at least one of them has been enabled by BIOS...
1395 */
1396 pci_read_config_byte(dev, 0x50, &mcr1);
1397 if (mcr1 & 0x30)
1398 pci_write_config_byte(dev, 0x50, mcr1 | 0x30);
1399
1400 pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
1401 pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2);
1402
1403 if (pin1 != pin2 && dev->irq == dev2->irq) {
1404 printk(KERN_INFO DRV_NAME " %s: onboard version of chipset, "
1405 "pin1=%d pin2=%d\n", pci_name(dev), pin1, pin2);
1406 return 1;
1407 }
1408
1409 return 0;
1410}
1411
1412#define IDE_HFLAGS_HPT3XX \
1413 (IDE_HFLAG_NO_ATAPI_DMA | \
1414 IDE_HFLAG_OFF_BOARD)
1415
1416static const struct ide_port_ops hpt3xx_port_ops = {
1417 .set_pio_mode = hpt3xx_set_pio_mode,
1418 .set_dma_mode = hpt3xx_set_mode,
1419 .quirkproc = hpt3xx_quirkproc,
1420 .maskproc = hpt3xx_maskproc,
1421 .mdma_filter = hpt3xx_mdma_filter,
1422 .udma_filter = hpt3xx_udma_filter,
1423 .cable_detect = hpt3xx_cable_detect,
1424};
1425
1426static const struct ide_dma_ops hpt37x_dma_ops = {
1427 .dma_host_set = ide_dma_host_set,
1428 .dma_setup = ide_dma_setup,
1429 .dma_exec_cmd = ide_dma_exec_cmd,
1430 .dma_start = ide_dma_start,
1431 .dma_end = hpt374_dma_end,
1432 .dma_test_irq = hpt374_dma_test_irq,
1433 .dma_lost_irq = ide_dma_lost_irq,
1434 .dma_timeout = ide_dma_timeout,
1435};
1436
1437static const struct ide_dma_ops hpt370_dma_ops = {
1438 .dma_host_set = ide_dma_host_set,
1439 .dma_setup = ide_dma_setup,
1440 .dma_exec_cmd = ide_dma_exec_cmd,
1441 .dma_start = hpt370_dma_start,
1442 .dma_end = hpt370_dma_end,
1443 .dma_test_irq = ide_dma_test_irq,
1444 .dma_lost_irq = ide_dma_lost_irq,
1445 .dma_timeout = hpt370_dma_timeout,
1446};
1447
1448static const struct ide_dma_ops hpt36x_dma_ops = {
1449 .dma_host_set = ide_dma_host_set,
1450 .dma_setup = ide_dma_setup,
1451 .dma_exec_cmd = ide_dma_exec_cmd,
1452 .dma_start = ide_dma_start,
1453 .dma_end = ide_dma_end,
1454 .dma_test_irq = ide_dma_test_irq,
1455 .dma_lost_irq = hpt366_dma_lost_irq,
1456 .dma_timeout = ide_dma_timeout,
1457};
1458
1459static const struct ide_port_info hpt366_chipsets[] __devinitdata = {
1460 { /* 0: HPT36x */
1461 .name = DRV_NAME,
1462 .init_chipset = init_chipset_hpt366,
1463 .init_hwif = init_hwif_hpt366,
1464 .init_dma = init_dma_hpt366,
1465 /*
1466 * HPT36x chips have one channel per function and have
1467 * both channel enable bits located differently and visible
1468 * to both functions -- really stupid design decision... :-(
1469 * Bit 4 is for the primary channel, bit 5 for the secondary.
1470 */
1471 .enablebits = {{0x50,0x10,0x10}, {0x54,0x04,0x04}},
1472 .port_ops = &hpt3xx_port_ops,
1473 .dma_ops = &hpt36x_dma_ops,
1474 .host_flags = IDE_HFLAGS_HPT3XX | IDE_HFLAG_SINGLE,
1475 .pio_mask = ATA_PIO4,
1476 .mwdma_mask = ATA_MWDMA2,
1477 },
1478 { /* 1: HPT3xx */
1479 .name = DRV_NAME,
1480 .init_chipset = init_chipset_hpt366,
1481 .init_hwif = init_hwif_hpt366,
1482 .init_dma = init_dma_hpt366,
1483 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1484 .port_ops = &hpt3xx_port_ops,
1485 .dma_ops = &hpt37x_dma_ops,
1486 .host_flags = IDE_HFLAGS_HPT3XX,
1487 .pio_mask = ATA_PIO4,
1488 .mwdma_mask = ATA_MWDMA2,
1489 }
1490};
1491
1492/**
1493 * hpt366_init_one - called when an HPT366 is found
1494 * @dev: the hpt366 device
1495 * @id: the matching pci id
1496 *
1497 * Called when the PCI registration layer (or the IDE initialization)
1498 * finds a device matching our IDE device tables.
1499 */
1500static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id)
1501{
1502 const struct hpt_info *info = NULL;
1503 struct hpt_info *dyn_info;
1504 struct pci_dev *dev2 = NULL;
1505 struct ide_port_info d;
1506 u8 idx = id->driver_data;
1507 u8 rev = dev->revision;
1508 int ret;
1509
1510 if ((idx == 0 || idx == 4) && (PCI_FUNC(dev->devfn) & 1))
1511 return -ENODEV;
1512
1513 switch (idx) {
1514 case 0:
1515 if (rev < 3)
1516 info = &hpt36x;
1517 else {
1518 switch (min_t(u8, rev, 6)) {
1519 case 3: info = &hpt370; break;
1520 case 4: info = &hpt370a; break;
1521 case 5: info = &hpt372; break;
1522 case 6: info = &hpt372n; break;
1523 }
1524 idx++;
1525 }
1526 break;
1527 case 1:
1528 info = (rev > 1) ? &hpt372n : &hpt372a;
1529 break;
1530 case 2:
1531 info = (rev > 1) ? &hpt302n : &hpt302;
1532 break;
1533 case 3:
1534 hpt371_init(dev);
1535 info = (rev > 1) ? &hpt371n : &hpt371;
1536 break;
1537 case 4:
1538 info = &hpt374;
1539 break;
1540 case 5:
1541 info = &hpt372n;
1542 break;
1543 }
1544
1545 printk(KERN_INFO DRV_NAME ": %s chipset detected\n", info->chip_name);
1546
1547 d = hpt366_chipsets[min_t(u8, idx, 1)];
1548
1549 d.udma_mask = info->udma_mask;
1550
1551 /* fixup ->dma_ops for HPT370/HPT370A */
1552 if (info == &hpt370 || info == &hpt370a)
1553 d.dma_ops = &hpt370_dma_ops;
1554
1555 if (info == &hpt36x || info == &hpt374)
1556 dev2 = pci_get_slot(dev->bus, dev->devfn + 1);
1557
1558 dyn_info = kzalloc(sizeof(*dyn_info) * (dev2 ? 2 : 1), GFP_KERNEL);
1559 if (dyn_info == NULL) {
1560 printk(KERN_ERR "%s %s: out of memory!\n",
1561 d.name, pci_name(dev));
1562 pci_dev_put(dev2);
1563 return -ENOMEM;
1564 }
1565
1566 /*
1567 * Copy everything from a static "template" structure
1568 * to just allocated per-chip hpt_info structure.
1569 */
1570 memcpy(dyn_info, info, sizeof(*dyn_info));
1571
1572 if (dev2) {
1573 memcpy(dyn_info + 1, info, sizeof(*dyn_info));
1574
1575 if (info == &hpt374)
1576 hpt374_init(dev, dev2);
1577 else {
1578 if (hpt36x_init(dev, dev2))
1579 d.host_flags &= ~IDE_HFLAG_NON_BOOTABLE;
1580 }
1581
1582 ret = ide_pci_init_two(dev, dev2, &d, dyn_info);
1583 if (ret < 0) {
1584 pci_dev_put(dev2);
1585 kfree(dyn_info);
1586 }
1587 return ret;
1588 }
1589
1590 ret = ide_pci_init_one(dev, &d, dyn_info);
1591 if (ret < 0)
1592 kfree(dyn_info);
1593
1594 return ret;
1595}
1596
1597static void __devexit hpt366_remove(struct pci_dev *dev)
1598{
1599 struct ide_host *host = pci_get_drvdata(dev);
1600 struct ide_info *info = host->host_priv;
1601 struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL;
1602
1603 ide_pci_remove(dev);
1604 pci_dev_put(dev2);
1605 kfree(info);
1606}
1607
1608static const struct pci_device_id hpt366_pci_tbl[] __devinitconst = {
1609 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), 0 },
1610 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), 1 },
1611 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), 2 },
1612 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT371), 3 },
1613 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT374), 4 },
1614 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372N), 5 },
1615 { 0, },
1616};
1617MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl);
1618
1619static struct pci_driver hpt366_pci_driver = {
1620 .name = "HPT366_IDE",
1621 .id_table = hpt366_pci_tbl,
1622 .probe = hpt366_init_one,
1623 .remove = __devexit_p(hpt366_remove),
1624 .suspend = ide_pci_suspend,
1625 .resume = ide_pci_resume,
1626};
1627
1628static int __init hpt366_ide_init(void)
1629{
1630 return ide_pci_register_driver(&hpt366_pci_driver);
1631}
1632
1633static void __exit hpt366_ide_exit(void)
1634{
1635 pci_unregister_driver(&hpt366_pci_driver);
1636}
1637
1638module_init(hpt366_ide_init);
1639module_exit(hpt366_ide_exit);
1640
1641MODULE_AUTHOR("Andre Hedrick");
1642MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE");
1643MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-11 05:12:19 -0500