2 * linux/drivers/ide/pci/hpt366.c Version 1.13 Sep 29, 2007
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
7 * Portions Copyright (C) 2005-2007 MontaVista Software, Inc.
9 * Thanks to HighPoint Technologies for their assistance, and hardware.
10 * Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his
11 * donation of an ABit BP6 mainboard, processor, and memory acellerated
12 * development and support.
15 * HighPoint has its own drivers (open source except for the RAID part)
16 * available from http://www.highpoint-tech.com/BIOS%20+%20Driver/.
17 * This may be useful to anyone wanting to work on this driver, however do not
18 * trust them too much since the code tends to become less and less meaningful
19 * as the time passes... :-/
21 * Note that final HPT370 support was done by force extraction of GPL.
23 * - add function for getting/setting power status of drive
24 * - the HPT370's state machine can get confused. reset it before each dma
25 * xfer to prevent that from happening.
26 * - reset state engine whenever we get an error.
27 * - check for busmaster state at end of dma.
28 * - use new highpoint timings.
29 * - detect bus speed using highpoint register.
30 * - use pll if we don't have a clock table. added a 66MHz table that's
31 * just 2x the 33MHz table.
32 * - removed turnaround. NOTE: we never want to switch between pll and
33 * pci clocks as the chip can glitch in those cases. the highpoint
34 * approved workaround slows everything down too much to be useful. in
35 * addition, we would have to serialize access to each chip.
36 * Adrian Sun <a.sun@sun.com>
38 * add drive timings for 66MHz PCI bus,
39 * fix ATA Cable signal detection, fix incorrect /proc info
40 * add /proc display for per-drive PIO/DMA/UDMA mode and
41 * per-channel ATA-33/66 Cable detect.
42 * Duncan Laurie <void@sun.com>
44 * fixup /proc output for multiple controllers
45 * Tim Hockin <thockin@sun.com>
48 * Reset the hpt366 on error, reset on dma
49 * Fix disabling Fast Interrupt hpt366.
50 * Mike Waychison <crlf@sun.com>
52 * Added support for 372N clocking and clock switching. The 372N needs
53 * different clocks on read/write. This requires overloading rw_disk and
54 * other deeply crazy things. Thanks to <http://www.hoerstreich.de> for
56 * Alan Cox <alan@redhat.com>
58 * - fix the clock turnaround code: it was writing to the wrong ports when
59 * called for the secondary channel, caching the current clock mode per-
60 * channel caused the cached register value to get out of sync with the
61 * actual one, the channels weren't serialized, the turnaround shouldn't
62 * be done on 66 MHz PCI bus
63 * - disable UltraATA/100 for HPT370 by default as the 33 MHz clock being used
64 * does not allow for this speed anyway
65 * - avoid touching disabled channels (e.g. HPT371/N are single channel chips,
66 * their primary channel is kind of virtual, it isn't tied to any pins)
67 * - fix/remove bad/unused timing tables and use one set of tables for the whole
68 * HPT37x chip family; save space by introducing the separate transfer mode
69 * table in which the mode lookup is done
70 * - use f_CNT value saved by the HighPoint BIOS as reading it directly gives
71 * the wrong PCI frequency since DPLL has already been calibrated by BIOS;
72 * read it only from the function 0 of HPT374 chips
73 * - fix the hotswap code: it caused RESET- to glitch when tristating the bus,
74 * and for HPT36x the obsolete HDIO_TRISTATE_HWIF handler was called instead
75 * - pass to init_chipset() handlers a copy of the IDE PCI device structure as
76 * they tamper with its fields
77 * - pass to the init_setup handlers a copy of the ide_pci_device_t structure
78 * since they may tamper with its fields
79 * - prefix the driver startup messages with the real chip name
80 * - claim the extra 240 bytes of I/O space for all chips
81 * - optimize the UltraDMA filtering and the drive list lookup code
82 * - use pci_get_slot() to get to the function 1 of HPT36x/374
83 * - cache offset of the channel's misc. control registers (MCRs) being used
84 * throughout the driver
85 * - only touch the relevant MCR when detecting the cable type on HPT374's
87 * - rename all the register related variables consistently
88 * - move all the interrupt twiddling code from the speedproc handlers into
89 * init_hwif_hpt366(), also grouping all the DMA related code together there
90 * - merge two HPT37x speedproc handlers, fix the PIO timing register mask and
91 * separate the UltraDMA and MWDMA masks there to avoid changing PIO timings
92 * when setting an UltraDMA mode
93 * - fix hpt3xx_tune_drive() to set the PIO mode requested, not always select
94 * the best possible one
95 * - clean up DMA timeout handling for HPT370
96 * - switch to using the enumeration type to differ between the numerous chip
97 * variants, matching PCI device/revision ID with the chip type early, at the
99 * - extend the hpt_info structure to hold the DPLL and PCI clock frequencies,
100 * stop duplicating it for each channel by storing the pointer in the pci_dev
101 * structure: first, at the init_setup stage, point it to a static "template"
102 * with only the chip type and its specific base DPLL frequency, the highest
103 * UltraDMA mode, and the chip settings table pointer filled, then, at the
104 * init_chipset stage, allocate per-chip instance and fill it with the rest
105 * of the necessary information
106 * - get rid of the constant thresholds in the HPT37x PCI clock detection code,
107 * switch to calculating PCI clock frequency based on the chip's base DPLL
109 * - switch to using the DPLL clock and enable UltraATA/133 mode by default on
110 * anything newer than HPT370/A (except HPT374 that is not capable of this
111 * mode according to the manual)
112 * - fold PCI clock detection and DPLL setup code into init_chipset_hpt366(),
113 * also fixing the interchanged 25/40 MHz PCI clock cases for HPT36x chips;
114 * unify HPT36x/37x timing setup code and the speedproc handlers by joining
115 * the register setting lists into the table indexed by the clock selected
116 * - set the correct hwif->ultra_mask for each individual chip
117 * - add Ultra and MW DMA mode filtering for the HPT37[24] based SATA cards
118 * Sergei Shtylyov, <sshtylyov@ru.mvista.com> or <source@mvista.com>
121 #include <linux/types.h>
122 #include <linux/module.h>
123 #include <linux/kernel.h>
124 #include <linux/delay.h>
125 #include <linux/timer.h>
126 #include <linux/mm.h>
127 #include <linux/ioport.h>
128 #include <linux/blkdev.h>
129 #include <linux/hdreg.h>
131 #include <linux/interrupt.h>
132 #include <linux/pci.h>
133 #include <linux/init.h>
134 #include <linux/ide.h>
136 #include <asm/uaccess.h>
140 /* various tuning parameters */
141 #define HPT_RESET_STATE_ENGINE
142 #undef HPT_DELAY_INTERRUPT
143 #define HPT_SERIALIZE_IO 0
145 static const char *quirk_drives[] = {
146 "QUANTUM FIREBALLlct08 08",
147 "QUANTUM FIREBALLP KA6.4",
148 "QUANTUM FIREBALLP LM20.4",
149 "QUANTUM FIREBALLP LM20.5",
153 static const char *bad_ata100_5[] = {
172 static const char *bad_ata66_4[] = {
188 "MAXTOR STM3320620A",
192 static const char *bad_ata66_3[] = {
197 static const char *bad_ata33[] = {
198 "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2",
199 "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2",
200 "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4",
202 "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2",
203 "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4",
204 "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2",
208 static u8 xfer_speeds[] = {
228 /* Key for bus clock timings
231 * 0:3 0:3 data_high_time. Inactive time of DIOW_/DIOR_ for PIO and MW DMA.
233 * 4:7 4:8 data_low_time. Active time of DIOW_/DIOR_ for PIO and MW DMA.
235 * 8:11 9:12 cmd_high_time. Inactive time of DIOW_/DIOR_ during task file
237 * 12:15 13:17 cmd_low_time. Active time of DIOW_/DIOR_ during task file
239 * 16:18 18:20 udma_cycle_time. Clock cycles for UDMA xfer.
240 * - 21 CLK frequency: 0=ATA clock, 1=dual ATA clock.
241 * 19:21 22:24 pre_high_time. Time to initialize the 1st cycle for PIO and
243 * 22:24 25:27 cmd_pre_high_time. Time to initialize the 1st PIO cycle for
244 * task file register access.
247 * 30 30 PIO MST enable. If set, the chip is in bus master mode during
252 static u32 forty_base_hpt36x[] = {
253 /* XFER_UDMA_6 */ 0x900fd943,
254 /* XFER_UDMA_5 */ 0x900fd943,
255 /* XFER_UDMA_4 */ 0x900fd943,
256 /* XFER_UDMA_3 */ 0x900ad943,
257 /* XFER_UDMA_2 */ 0x900bd943,
258 /* XFER_UDMA_1 */ 0x9008d943,
259 /* XFER_UDMA_0 */ 0x9008d943,
261 /* XFER_MW_DMA_2 */ 0xa008d943,
262 /* XFER_MW_DMA_1 */ 0xa010d955,
263 /* XFER_MW_DMA_0 */ 0xa010d9fc,
265 /* XFER_PIO_4 */ 0xc008d963,
266 /* XFER_PIO_3 */ 0xc010d974,
267 /* XFER_PIO_2 */ 0xc010d997,
268 /* XFER_PIO_1 */ 0xc010d9c7,
269 /* XFER_PIO_0 */ 0xc018d9d9
272 static u32 thirty_three_base_hpt36x[] = {
273 /* XFER_UDMA_6 */ 0x90c9a731,
274 /* XFER_UDMA_5 */ 0x90c9a731,
275 /* XFER_UDMA_4 */ 0x90c9a731,
276 /* XFER_UDMA_3 */ 0x90cfa731,
277 /* XFER_UDMA_2 */ 0x90caa731,
278 /* XFER_UDMA_1 */ 0x90cba731,
279 /* XFER_UDMA_0 */ 0x90c8a731,
281 /* XFER_MW_DMA_2 */ 0xa0c8a731,
282 /* XFER_MW_DMA_1 */ 0xa0c8a732, /* 0xa0c8a733 */
283 /* XFER_MW_DMA_0 */ 0xa0c8a797,
285 /* XFER_PIO_4 */ 0xc0c8a731,
286 /* XFER_PIO_3 */ 0xc0c8a742,
287 /* XFER_PIO_2 */ 0xc0d0a753,
288 /* XFER_PIO_1 */ 0xc0d0a7a3, /* 0xc0d0a793 */
289 /* XFER_PIO_0 */ 0xc0d0a7aa /* 0xc0d0a7a7 */
292 static u32 twenty_five_base_hpt36x[] = {
293 /* XFER_UDMA_6 */ 0x90c98521,
294 /* XFER_UDMA_5 */ 0x90c98521,
295 /* XFER_UDMA_4 */ 0x90c98521,
296 /* XFER_UDMA_3 */ 0x90cf8521,
297 /* XFER_UDMA_2 */ 0x90cf8521,
298 /* XFER_UDMA_1 */ 0x90cb8521,
299 /* XFER_UDMA_0 */ 0x90cb8521,
301 /* XFER_MW_DMA_2 */ 0xa0ca8521,
302 /* XFER_MW_DMA_1 */ 0xa0ca8532,
303 /* XFER_MW_DMA_0 */ 0xa0ca8575,
305 /* XFER_PIO_4 */ 0xc0ca8521,
306 /* XFER_PIO_3 */ 0xc0ca8532,
307 /* XFER_PIO_2 */ 0xc0ca8542,
308 /* XFER_PIO_1 */ 0xc0d08572,
309 /* XFER_PIO_0 */ 0xc0d08585
312 static u32 thirty_three_base_hpt37x[] = {
313 /* XFER_UDMA_6 */ 0x12446231, /* 0x12646231 ?? */
314 /* XFER_UDMA_5 */ 0x12446231,
315 /* XFER_UDMA_4 */ 0x12446231,
316 /* XFER_UDMA_3 */ 0x126c6231,
317 /* XFER_UDMA_2 */ 0x12486231,
318 /* XFER_UDMA_1 */ 0x124c6233,
319 /* XFER_UDMA_0 */ 0x12506297,
321 /* XFER_MW_DMA_2 */ 0x22406c31,
322 /* XFER_MW_DMA_1 */ 0x22406c33,
323 /* XFER_MW_DMA_0 */ 0x22406c97,
325 /* XFER_PIO_4 */ 0x06414e31,
326 /* XFER_PIO_3 */ 0x06414e42,
327 /* XFER_PIO_2 */ 0x06414e53,
328 /* XFER_PIO_1 */ 0x06814e93,
329 /* XFER_PIO_0 */ 0x06814ea7
332 static u32 fifty_base_hpt37x[] = {
333 /* XFER_UDMA_6 */ 0x12848242,
334 /* XFER_UDMA_5 */ 0x12848242,
335 /* XFER_UDMA_4 */ 0x12ac8242,
336 /* XFER_UDMA_3 */ 0x128c8242,
337 /* XFER_UDMA_2 */ 0x120c8242,
338 /* XFER_UDMA_1 */ 0x12148254,
339 /* XFER_UDMA_0 */ 0x121882ea,
341 /* XFER_MW_DMA_2 */ 0x22808242,
342 /* XFER_MW_DMA_1 */ 0x22808254,
343 /* XFER_MW_DMA_0 */ 0x228082ea,
345 /* XFER_PIO_4 */ 0x0a81f442,
346 /* XFER_PIO_3 */ 0x0a81f443,
347 /* XFER_PIO_2 */ 0x0a81f454,
348 /* XFER_PIO_1 */ 0x0ac1f465,
349 /* XFER_PIO_0 */ 0x0ac1f48a
352 static u32 sixty_six_base_hpt37x[] = {
353 /* XFER_UDMA_6 */ 0x1c869c62,
354 /* XFER_UDMA_5 */ 0x1cae9c62, /* 0x1c8a9c62 */
355 /* XFER_UDMA_4 */ 0x1c8a9c62,
356 /* XFER_UDMA_3 */ 0x1c8e9c62,
357 /* XFER_UDMA_2 */ 0x1c929c62,
358 /* XFER_UDMA_1 */ 0x1c9a9c62,
359 /* XFER_UDMA_0 */ 0x1c829c62,
361 /* XFER_MW_DMA_2 */ 0x2c829c62,
362 /* XFER_MW_DMA_1 */ 0x2c829c66,
363 /* XFER_MW_DMA_0 */ 0x2c829d2e,
365 /* XFER_PIO_4 */ 0x0c829c62,
366 /* XFER_PIO_3 */ 0x0c829c84,
367 /* XFER_PIO_2 */ 0x0c829ca6,
368 /* XFER_PIO_1 */ 0x0d029d26,
369 /* XFER_PIO_0 */ 0x0d029d5e
372 #define HPT366_DEBUG_DRIVE_INFO 0
373 #define HPT371_ALLOW_ATA133_6 1
374 #define HPT302_ALLOW_ATA133_6 1
375 #define HPT372_ALLOW_ATA133_6 1
376 #define HPT370_ALLOW_ATA100_5 0
377 #define HPT366_ALLOW_ATA66_4 1
378 #define HPT366_ALLOW_ATA66_3 1
379 #define HPT366_MAX_DEVS 8
381 /* Supported ATA clock frequencies */
392 * Hold all the HighPoint chip information in one place.
396 u8 chip_type; /* Chip type */
397 u8 max_ultra; /* Max. UltraDMA mode allowed */
398 u8 dpll_clk; /* DPLL clock in MHz */
399 u8 pci_clk; /* PCI clock in MHz */
400 u32 **settings; /* Chipset settings table */
403 /* Supported HighPoint chips */
418 static u32 *hpt36x_settings[NUM_ATA_CLOCKS] = {
419 twenty_five_base_hpt36x,
420 thirty_three_base_hpt36x,
426 static u32 *hpt37x_settings[NUM_ATA_CLOCKS] = {
428 thirty_three_base_hpt37x,
431 sixty_six_base_hpt37x
434 static struct hpt_info hpt36x __devinitdata = {
436 .max_ultra = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? 4 : 3) : 2,
437 .dpll_clk = 0, /* no DPLL */
438 .settings = hpt36x_settings
441 static struct hpt_info hpt370 __devinitdata = {
443 .max_ultra = HPT370_ALLOW_ATA100_5 ? 5 : 4,
445 .settings = hpt37x_settings
448 static struct hpt_info hpt370a __devinitdata = {
449 .chip_type = HPT370A,
450 .max_ultra = HPT370_ALLOW_ATA100_5 ? 5 : 4,
452 .settings = hpt37x_settings
455 static struct hpt_info hpt374 __devinitdata = {
459 .settings = hpt37x_settings
462 static struct hpt_info hpt372 __devinitdata = {
464 .max_ultra = HPT372_ALLOW_ATA133_6 ? 6 : 5,
466 .settings = hpt37x_settings
469 static struct hpt_info hpt372a __devinitdata = {
470 .chip_type = HPT372A,
471 .max_ultra = HPT372_ALLOW_ATA133_6 ? 6 : 5,
473 .settings = hpt37x_settings
476 static struct hpt_info hpt302 __devinitdata = {
478 .max_ultra = HPT372_ALLOW_ATA133_6 ? 6 : 5,
480 .settings = hpt37x_settings
483 static struct hpt_info hpt371 __devinitdata = {
485 .max_ultra = HPT371_ALLOW_ATA133_6 ? 6 : 5,
487 .settings = hpt37x_settings
490 static struct hpt_info hpt372n __devinitdata = {
491 .chip_type = HPT372N,
492 .max_ultra = HPT372_ALLOW_ATA133_6 ? 6 : 5,
494 .settings = hpt37x_settings
497 static struct hpt_info hpt302n __devinitdata = {
498 .chip_type = HPT302N,
499 .max_ultra = HPT302_ALLOW_ATA133_6 ? 6 : 5,
501 .settings = hpt37x_settings
504 static struct hpt_info hpt371n __devinitdata = {
505 .chip_type = HPT371N,
506 .max_ultra = HPT371_ALLOW_ATA133_6 ? 6 : 5,
508 .settings = hpt37x_settings
511 static int check_in_drive_list(ide_drive_t *drive, const char **list)
513 struct hd_driveid *id = drive->id;
516 if (!strcmp(*list++,id->model))
522 * The Marvell bridge chips used on the HighPoint SATA cards do not seem
523 * to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes...
526 static u8 hpt3xx_udma_filter(ide_drive_t *drive)
528 ide_hwif_t *hwif = HWIF(drive);
529 struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
530 u8 mask = hwif->ultra_mask;
532 switch (info->chip_type) {
534 if (!HPT366_ALLOW_ATA66_4 ||
535 check_in_drive_list(drive, bad_ata66_4))
538 if (!HPT366_ALLOW_ATA66_3 ||
539 check_in_drive_list(drive, bad_ata66_3))
543 if (!HPT370_ALLOW_ATA100_5 ||
544 check_in_drive_list(drive, bad_ata100_5))
548 if (!HPT370_ALLOW_ATA100_5 ||
549 check_in_drive_list(drive, bad_ata100_5))
555 if (ide_dev_is_sata(drive->id))
562 return check_in_drive_list(drive, bad_ata33) ? 0x00 : mask;
565 static u8 hpt3xx_mdma_filter(ide_drive_t *drive)
567 ide_hwif_t *hwif = HWIF(drive);
568 struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
570 switch (info->chip_type) {
575 if (ide_dev_is_sata(drive->id))
583 static u32 get_speed_setting(u8 speed, struct hpt_info *info)
588 * Lookup the transfer mode table to get the index into
591 * NOTE: For XFER_PIO_SLOW, PIO mode 0 timings will be used.
593 for (i = 0; i < ARRAY_SIZE(xfer_speeds) - 1; i++)
594 if (xfer_speeds[i] == speed)
597 * NOTE: info->settings only points to the pointer
598 * to the list of the actual register values
600 return (*info->settings)[i];
603 static int hpt36x_tune_chipset(ide_drive_t *drive, u8 xferspeed)
605 ide_hwif_t *hwif = HWIF(drive);
606 struct pci_dev *dev = hwif->pci_dev;
607 struct hpt_info *info = pci_get_drvdata(dev);
608 u8 speed = ide_rate_filter(drive, xferspeed);
609 u8 itr_addr = drive->dn ? 0x44 : 0x40;
611 u32 itr_mask, new_itr;
613 /* TODO: move this to ide_rate_filter() [ check ->atapi_dma ] */
614 if (drive->media != ide_disk)
615 speed = min_t(u8, speed, XFER_PIO_4);
617 itr_mask = speed < XFER_MW_DMA_0 ? 0x30070000 :
618 (speed < XFER_UDMA_0 ? 0xc0070000 : 0xc03800ff);
620 new_itr = get_speed_setting(speed, info);
623 * Disable on-chip PIO FIFO/buffer (and PIO MST mode as well)
624 * to avoid problems handling I/O errors later
626 pci_read_config_dword(dev, itr_addr, &old_itr);
627 new_itr = (new_itr & ~itr_mask) | (old_itr & itr_mask);
628 new_itr &= ~0xc0000000;
630 pci_write_config_dword(dev, itr_addr, new_itr);
632 return ide_config_drive_speed(drive, speed);
635 static int hpt37x_tune_chipset(ide_drive_t *drive, u8 xferspeed)
637 ide_hwif_t *hwif = HWIF(drive);
638 struct pci_dev *dev = hwif->pci_dev;
639 struct hpt_info *info = pci_get_drvdata(dev);
640 u8 speed = ide_rate_filter(drive, xferspeed);
641 u8 itr_addr = 0x40 + (drive->dn * 4);
643 u32 itr_mask, new_itr;
645 /* TODO: move this to ide_rate_filter() [ check ->atapi_dma ] */
646 if (drive->media != ide_disk)
647 speed = min_t(u8, speed, XFER_PIO_4);
649 itr_mask = speed < XFER_MW_DMA_0 ? 0x303c0000 :
650 (speed < XFER_UDMA_0 ? 0xc03c0000 : 0xc1c001ff);
652 new_itr = get_speed_setting(speed, info);
654 pci_read_config_dword(dev, itr_addr, &old_itr);
655 new_itr = (new_itr & ~itr_mask) | (old_itr & itr_mask);
657 if (speed < XFER_MW_DMA_0)
658 new_itr &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
659 pci_write_config_dword(dev, itr_addr, new_itr);
661 return ide_config_drive_speed(drive, speed);
664 static int hpt3xx_tune_chipset(ide_drive_t *drive, u8 speed)
666 ide_hwif_t *hwif = HWIF(drive);
667 struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
669 if (info->chip_type >= HPT370)
670 return hpt37x_tune_chipset(drive, speed);
671 else /* hpt368: hpt_minimum_revision(dev, 2) */
672 return hpt36x_tune_chipset(drive, speed);
675 static void hpt3xx_tune_drive(ide_drive_t *drive, u8 pio)
677 pio = ide_get_best_pio_mode(drive, pio, 4);
678 (void) hpt3xx_tune_chipset (drive, XFER_PIO_0 + pio);
681 static int hpt3xx_quirkproc(ide_drive_t *drive)
683 struct hd_driveid *id = drive->id;
684 const char **list = quirk_drives;
687 if (strstr(id->model, *list++))
692 static void hpt3xx_intrproc(ide_drive_t *drive)
694 ide_hwif_t *hwif = HWIF(drive);
696 if (drive->quirk_list)
698 /* drives in the quirk_list may not like intr setups/cleanups */
699 hwif->OUTB(drive->ctl | 2, IDE_CONTROL_REG);
702 static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
704 ide_hwif_t *hwif = HWIF(drive);
705 struct pci_dev *dev = hwif->pci_dev;
706 struct hpt_info *info = pci_get_drvdata(dev);
708 if (drive->quirk_list) {
709 if (info->chip_type >= HPT370) {
712 pci_read_config_byte(dev, 0x5a, &scr1);
713 if (((scr1 & 0x10) >> 4) != mask) {
718 pci_write_config_byte(dev, 0x5a, scr1);
722 disable_irq(hwif->irq);
724 enable_irq (hwif->irq);
727 hwif->OUTB(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
731 static int hpt366_config_drive_xfer_rate(ide_drive_t *drive)
733 drive->init_speed = 0;
735 if (ide_tune_dma(drive))
738 if (ide_use_fast_pio(drive))
739 hpt3xx_tune_drive(drive, 255);
745 * This is specific to the HPT366 UDMA chipset
746 * by HighPoint|Triones Technologies, Inc.
748 static void hpt366_dma_lost_irq(ide_drive_t *drive)
750 struct pci_dev *dev = HWIF(drive)->pci_dev;
751 u8 mcr1 = 0, mcr3 = 0, scr1 = 0;
753 pci_read_config_byte(dev, 0x50, &mcr1);
754 pci_read_config_byte(dev, 0x52, &mcr3);
755 pci_read_config_byte(dev, 0x5a, &scr1);
756 printk("%s: (%s) mcr1=0x%02x, mcr3=0x%02x, scr1=0x%02x\n",
757 drive->name, __FUNCTION__, mcr1, mcr3, scr1);
759 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
760 ide_dma_lost_irq(drive);
763 static void hpt370_clear_engine(ide_drive_t *drive)
765 ide_hwif_t *hwif = HWIF(drive);
767 pci_write_config_byte(hwif->pci_dev, hwif->select_data, 0x37);
771 static void hpt370_irq_timeout(ide_drive_t *drive)
773 ide_hwif_t *hwif = HWIF(drive);
777 pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
778 printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff);
780 /* get DMA command mode */
781 dma_cmd = hwif->INB(hwif->dma_command);
783 hwif->OUTB(dma_cmd & ~0x1, hwif->dma_command);
784 hpt370_clear_engine(drive);
787 static void hpt370_ide_dma_start(ide_drive_t *drive)
789 #ifdef HPT_RESET_STATE_ENGINE
790 hpt370_clear_engine(drive);
792 ide_dma_start(drive);
795 static int hpt370_ide_dma_end(ide_drive_t *drive)
797 ide_hwif_t *hwif = HWIF(drive);
798 u8 dma_stat = hwif->INB(hwif->dma_status);
800 if (dma_stat & 0x01) {
803 dma_stat = hwif->INB(hwif->dma_status);
805 hpt370_irq_timeout(drive);
807 return __ide_dma_end(drive);
810 static void hpt370_dma_timeout(ide_drive_t *drive)
812 hpt370_irq_timeout(drive);
813 ide_dma_timeout(drive);
816 /* returns 1 if DMA IRQ issued, 0 otherwise */
817 static int hpt374_ide_dma_test_irq(ide_drive_t *drive)
819 ide_hwif_t *hwif = HWIF(drive);
823 pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
825 // printk("%s: %d bytes in FIFO\n", drive->name, bfifo);
829 dma_stat = inb(hwif->dma_status);
830 /* return 1 if INTR asserted */
834 if (!drive->waiting_for_dma)
835 printk(KERN_WARNING "%s: (%s) called while not waiting\n",
836 drive->name, __FUNCTION__);
840 static int hpt374_ide_dma_end(ide_drive_t *drive)
842 ide_hwif_t *hwif = HWIF(drive);
843 struct pci_dev *dev = hwif->pci_dev;
844 u8 mcr = 0, mcr_addr = hwif->select_data;
845 u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01;
847 pci_read_config_byte(dev, 0x6a, &bwsr);
848 pci_read_config_byte(dev, mcr_addr, &mcr);
850 pci_write_config_byte(dev, mcr_addr, mcr | 0x30);
851 return __ide_dma_end(drive);
855 * hpt3xxn_set_clock - perform clock switching dance
856 * @hwif: hwif to switch
857 * @mode: clocking mode (0x21 for write, 0x23 otherwise)
859 * Switch the DPLL clock on the HPT3xxN devices. This is a right mess.
862 static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode)
864 u8 scr2 = hwif->INB(hwif->dma_master + 0x7b);
866 if ((scr2 & 0x7f) == mode)
869 /* Tristate the bus */
870 hwif->OUTB(0x80, hwif->dma_master + 0x73);
871 hwif->OUTB(0x80, hwif->dma_master + 0x77);
873 /* Switch clock and reset channels */
874 hwif->OUTB(mode, hwif->dma_master + 0x7b);
875 hwif->OUTB(0xc0, hwif->dma_master + 0x79);
878 * Reset the state machines.
879 * NOTE: avoid accidentally enabling the disabled channels.
881 hwif->OUTB(hwif->INB(hwif->dma_master + 0x70) | 0x32,
882 hwif->dma_master + 0x70);
883 hwif->OUTB(hwif->INB(hwif->dma_master + 0x74) | 0x32,
884 hwif->dma_master + 0x74);
887 hwif->OUTB(0x00, hwif->dma_master + 0x79);
889 /* Reconnect channels to bus */
890 hwif->OUTB(0x00, hwif->dma_master + 0x73);
891 hwif->OUTB(0x00, hwif->dma_master + 0x77);
895 * hpt3xxn_rw_disk - prepare for I/O
896 * @drive: drive for command
897 * @rq: block request structure
899 * This is called when a disk I/O is issued to HPT3xxN.
900 * We need it because of the clock switching.
903 static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq)
905 hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21);
909 * Set/get power state for a drive.
910 * NOTE: affects both drives on each channel.
912 * When we turn the power back on, we need to re-initialize things.
914 #define TRISTATE_BIT 0x8000
916 static int hpt3xx_busproc(ide_drive_t *drive, int state)
918 ide_hwif_t *hwif = HWIF(drive);
919 struct pci_dev *dev = hwif->pci_dev;
920 u8 mcr_addr = hwif->select_data + 2;
921 u8 resetmask = hwif->channel ? 0x80 : 0x40;
925 hwif->bus_state = state;
927 /* Grab the status. */
928 pci_read_config_word(dev, mcr_addr, &mcr);
929 pci_read_config_byte(dev, 0x59, &bsr2);
932 * Set the state. We don't set it if we don't need to do so.
933 * Make sure that the drive knows that it has failed if it's off.
937 if (!(bsr2 & resetmask))
939 hwif->drives[0].failures = hwif->drives[1].failures = 0;
941 pci_write_config_byte(dev, 0x59, bsr2 & ~resetmask);
942 pci_write_config_word(dev, mcr_addr, mcr & ~TRISTATE_BIT);
945 if ((bsr2 & resetmask) && !(mcr & TRISTATE_BIT))
947 mcr &= ~TRISTATE_BIT;
949 case BUSSTATE_TRISTATE:
950 if ((bsr2 & resetmask) && (mcr & TRISTATE_BIT))
958 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
959 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
961 pci_write_config_word(dev, mcr_addr, mcr);
962 pci_write_config_byte(dev, 0x59, bsr2 | resetmask);
967 * hpt37x_calibrate_dpll - calibrate the DPLL
970 * Perform a calibration cycle on the DPLL.
971 * Returns 1 if this succeeds
973 static int __devinit hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f_high)
975 u32 dpll = (f_high << 16) | f_low | 0x100;
979 pci_write_config_dword(dev, 0x5c, dpll);
981 /* Wait for oscillator ready */
982 for(i = 0; i < 0x5000; ++i) {
984 pci_read_config_byte(dev, 0x5b, &scr2);
988 /* See if it stays ready (we'll just bail out if it's not yet) */
989 for(i = 0; i < 0x1000; ++i) {
990 pci_read_config_byte(dev, 0x5b, &scr2);
991 /* DPLL destabilized? */
995 /* Turn off tuning, we have the DPLL set */
996 pci_read_config_dword (dev, 0x5c, &dpll);
997 pci_write_config_dword(dev, 0x5c, (dpll & ~0x100));
1001 static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
1003 struct hpt_info *info = kmalloc(sizeof(struct hpt_info), GFP_KERNEL);
1004 unsigned long io_base = pci_resource_start(dev, 4);
1005 u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */
1007 enum ata_clock clock;
1010 printk(KERN_ERR "%s: out of memory!\n", name);
1015 * Copy everything from a static "template" structure
1016 * to just allocated per-chip hpt_info structure.
1018 memcpy(info, pci_get_drvdata(dev), sizeof(struct hpt_info));
1019 chip_type = info->chip_type;
1021 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
1022 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
1023 pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
1024 pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
1027 * First, try to estimate the PCI clock frequency...
1029 if (chip_type >= HPT370) {
1034 /* Interrupt force enable. */
1035 pci_read_config_byte(dev, 0x5a, &scr1);
1037 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
1040 * HighPoint does this for HPT372A.
1041 * NOTE: This register is only writeable via I/O space.
1043 if (chip_type == HPT372A)
1044 outb(0x0e, io_base + 0x9c);
1047 * Default to PCI clock. Make sure MA15/16 are set to output
1048 * to prevent drives having problems with 40-pin cables.
1050 pci_write_config_byte(dev, 0x5b, 0x23);
1053 * We'll have to read f_CNT value in order to determine
1054 * the PCI clock frequency according to the following ratio:
1056 * f_CNT = Fpci * 192 / Fdpll
1058 * First try reading the register in which the HighPoint BIOS
1059 * saves f_CNT value before reprogramming the DPLL from its
1060 * default setting (which differs for the various chips).
1062 * NOTE: This register is only accessible via I/O space;
1063 * HPT374 BIOS only saves it for the function 0, so we have to
1064 * always read it from there -- no need to check the result of
1065 * pci_get_slot() for the function 0 as the whole device has
1066 * been already "pinned" (via function 1) in init_setup_hpt374()
1068 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1069 struct pci_dev *dev1 = pci_get_slot(dev->bus,
1071 unsigned long io_base = pci_resource_start(dev1, 4);
1073 temp = inl(io_base + 0x90);
1076 temp = inl(io_base + 0x90);
1079 * In case the signature check fails, we'll have to
1080 * resort to reading the f_CNT register itself in hopes
1081 * that nobody has touched the DPLL yet...
1083 if ((temp & 0xFFFFF000) != 0xABCDE000) {
1086 printk(KERN_WARNING "%s: no clock data saved by BIOS\n",
1089 /* Calculate the average value of f_CNT. */
1090 for (temp = i = 0; i < 128; i++) {
1091 pci_read_config_word(dev, 0x78, &f_cnt);
1092 temp += f_cnt & 0x1ff;
1097 f_cnt = temp & 0x1ff;
1099 dpll_clk = info->dpll_clk;
1100 pci_clk = (f_cnt * dpll_clk) / 192;
1102 /* Clamp PCI clock to bands. */
1105 else if(pci_clk < 45)
1107 else if(pci_clk < 55)
1112 printk(KERN_INFO "%s: DPLL base: %d MHz, f_CNT: %d, "
1113 "assuming %d MHz PCI\n", name, dpll_clk, f_cnt, pci_clk);
1117 pci_read_config_dword(dev, 0x40, &itr1);
1119 /* Detect PCI clock by looking at cmd_high_time. */
1120 switch((itr1 >> 8) & 0x07) {
1134 /* Let's assume we'll use PCI clock for the ATA clock... */
1137 clock = ATA_CLOCK_25MHZ;
1141 clock = ATA_CLOCK_33MHZ;
1144 clock = ATA_CLOCK_40MHZ;
1147 clock = ATA_CLOCK_50MHZ;
1150 clock = ATA_CLOCK_66MHZ;
1155 * Only try the DPLL if we don't have a table for the PCI clock that
1156 * we are running at for HPT370/A, always use it for anything newer...
1158 * NOTE: Using the internal DPLL results in slow reads on 33 MHz PCI.
1159 * We also don't like using the DPLL because this causes glitches
1160 * on PRST-/SRST- when the state engine gets reset...
1162 if (chip_type >= HPT374 || info->settings[clock] == NULL) {
1163 u16 f_low, delta = pci_clk < 50 ? 2 : 4;
1167 * Select 66 MHz DPLL clock only if UltraATA/133 mode is
1168 * supported/enabled, use 50 MHz DPLL clock otherwise...
1170 if (info->max_ultra == 6) {
1172 clock = ATA_CLOCK_66MHZ;
1173 } else if (dpll_clk) { /* HPT36x chips don't have DPLL */
1175 clock = ATA_CLOCK_50MHZ;
1178 if (info->settings[clock] == NULL) {
1179 printk(KERN_ERR "%s: unknown bus timing!\n", name);
1184 /* Select the DPLL clock. */
1185 pci_write_config_byte(dev, 0x5b, 0x21);
1188 * Adjust the DPLL based upon PCI clock, enable it,
1189 * and wait for stabilization...
1191 f_low = (pci_clk * 48) / dpll_clk;
1193 for (adjust = 0; adjust < 8; adjust++) {
1194 if(hpt37x_calibrate_dpll(dev, f_low, f_low + delta))
1198 * See if it'll settle at a fractionally different clock
1201 f_low -= adjust >> 1;
1203 f_low += adjust >> 1;
1206 printk(KERN_ERR "%s: DPLL did not stabilize!\n", name);
1211 printk("%s: using %d MHz DPLL clock\n", name, dpll_clk);
1213 /* Mark the fact that we're not using the DPLL. */
1216 printk("%s: using %d MHz PCI clock\n", name, pci_clk);
1220 * Advance the table pointer to a slot which points to the list
1221 * of the register values settings matching the clock being used.
1223 info->settings += clock;
1225 /* Store the clock frequencies. */
1226 info->dpll_clk = dpll_clk;
1227 info->pci_clk = pci_clk;
1229 /* Point to this chip's own instance of the hpt_info structure. */
1230 pci_set_drvdata(dev, info);
1232 if (chip_type >= HPT370) {
1236 * Reset the state engines.
1237 * NOTE: Avoid accidentally enabling the disabled channels.
1239 pci_read_config_byte (dev, 0x50, &mcr1);
1240 pci_read_config_byte (dev, 0x54, &mcr4);
1241 pci_write_config_byte(dev, 0x50, (mcr1 | 0x32));
1242 pci_write_config_byte(dev, 0x54, (mcr4 | 0x32));
1247 * On HPT371N, if ATA clock is 66 MHz we must set bit 2 in
1248 * the MISC. register to stretch the UltraDMA Tss timing.
1249 * NOTE: This register is only writeable via I/O space.
1251 if (chip_type == HPT371N && clock == ATA_CLOCK_66MHZ)
1253 outb(inb(io_base + 0x9c) | 0x04, io_base + 0x9c);
1258 static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
1260 struct pci_dev *dev = hwif->pci_dev;
1261 struct hpt_info *info = pci_get_drvdata(dev);
1262 int serialize = HPT_SERIALIZE_IO;
1263 u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
1264 u8 chip_type = info->chip_type;
1265 u8 new_mcr, old_mcr = 0;
1267 /* Cache the channel's MISC. control registers' offset */
1268 hwif->select_data = hwif->channel ? 0x54 : 0x50;
1270 hwif->tuneproc = &hpt3xx_tune_drive;
1271 hwif->speedproc = &hpt3xx_tune_chipset;
1272 hwif->quirkproc = &hpt3xx_quirkproc;
1273 hwif->intrproc = &hpt3xx_intrproc;
1274 hwif->maskproc = &hpt3xx_maskproc;
1275 hwif->busproc = &hpt3xx_busproc;
1277 hwif->udma_filter = &hpt3xx_udma_filter;
1278 hwif->mdma_filter = &hpt3xx_mdma_filter;
1281 * HPT3xxN chips have some complications:
1283 * - on 33 MHz PCI we must clock switch
1284 * - on 66 MHz PCI we must NOT use the PCI clock
1286 if (chip_type >= HPT372N && info->dpll_clk && info->pci_clk < 66) {
1288 * Clock is shared between the channels,
1289 * so we'll have to serialize them... :-(
1292 hwif->rw_disk = &hpt3xxn_rw_disk;
1295 /* Serialize access to this device if needed */
1296 if (serialize && hwif->mate)
1297 hwif->serialized = hwif->mate->serialized = 1;
1300 * Disable the "fast interrupt" prediction. Don't hold off
1301 * on interrupts. (== 0x01 despite what the docs say)
1303 pci_read_config_byte(dev, hwif->select_data + 1, &old_mcr);
1305 if (info->chip_type >= HPT374)
1306 new_mcr = old_mcr & ~0x07;
1307 else if (info->chip_type >= HPT370) {
1311 #ifdef HPT_DELAY_INTERRUPT
1316 } else /* HPT366 and HPT368 */
1317 new_mcr = old_mcr & ~0x80;
1319 if (new_mcr != old_mcr)
1320 pci_write_config_byte(dev, hwif->select_data + 1, new_mcr);
1322 if (!hwif->dma_base) {
1323 hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
1327 hwif->ultra_mask = hwif->cds->udma_mask;
1328 hwif->mwdma_mask = 0x07;
1331 * The HPT37x uses the CBLID pins as outputs for MA15/MA16
1332 * address lines to access an external EEPROM. To read valid
1333 * cable detect state the pins must be enabled as inputs.
1335 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1337 * HPT374 PCI function 1
1338 * - set bit 15 of reg 0x52 to enable TCBLID as input
1339 * - set bit 15 of reg 0x56 to enable FCBLID as input
1341 u8 mcr_addr = hwif->select_data + 2;
1344 pci_read_config_word (dev, mcr_addr, &mcr);
1345 pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
1346 /* now read cable id register */
1347 pci_read_config_byte (dev, 0x5a, &scr1);
1348 pci_write_config_word(dev, mcr_addr, mcr);
1349 } else if (chip_type >= HPT370) {
1351 * HPT370/372 and 374 pcifn 0
1352 * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
1356 pci_read_config_byte (dev, 0x5b, &scr2);
1357 pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
1358 /* now read cable id register */
1359 pci_read_config_byte (dev, 0x5a, &scr1);
1360 pci_write_config_byte(dev, 0x5b, scr2);
1362 pci_read_config_byte (dev, 0x5a, &scr1);
1364 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
1365 hwif->cbl = (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
1367 hwif->ide_dma_check = &hpt366_config_drive_xfer_rate;
1369 if (chip_type >= HPT374) {
1370 hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
1371 hwif->ide_dma_end = &hpt374_ide_dma_end;
1372 } else if (chip_type >= HPT370) {
1373 hwif->dma_start = &hpt370_ide_dma_start;
1374 hwif->ide_dma_end = &hpt370_ide_dma_end;
1375 hwif->dma_timeout = &hpt370_dma_timeout;
1377 hwif->dma_lost_irq = &hpt366_dma_lost_irq;
1381 hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
1384 static void __devinit init_dma_hpt366(ide_hwif_t *hwif, unsigned long dmabase)
1386 struct pci_dev *dev = hwif->pci_dev;
1387 u8 masterdma = 0, slavedma = 0;
1388 u8 dma_new = 0, dma_old = 0;
1389 unsigned long flags;
1391 dma_old = hwif->INB(dmabase + 2);
1393 local_irq_save(flags);
1396 pci_read_config_byte(dev, hwif->channel ? 0x4b : 0x43, &masterdma);
1397 pci_read_config_byte(dev, hwif->channel ? 0x4f : 0x47, &slavedma);
1399 if (masterdma & 0x30) dma_new |= 0x20;
1400 if ( slavedma & 0x30) dma_new |= 0x40;
1401 if (dma_new != dma_old)
1402 hwif->OUTB(dma_new, dmabase + 2);
1404 local_irq_restore(flags);
1406 ide_setup_dma(hwif, dmabase, 8);
1409 static int __devinit init_setup_hpt374(struct pci_dev *dev, ide_pci_device_t *d)
1411 struct pci_dev *dev2;
1413 if (PCI_FUNC(dev->devfn) & 1)
1416 pci_set_drvdata(dev, &hpt374);
1418 if ((dev2 = pci_get_slot(dev->bus, dev->devfn + 1)) != NULL) {
1421 pci_set_drvdata(dev2, &hpt374);
1423 if (dev2->irq != dev->irq) {
1424 /* FIXME: we need a core pci_set_interrupt() */
1425 dev2->irq = dev->irq;
1426 printk(KERN_WARNING "%s: PCI config space interrupt "
1427 "fixed.\n", d->name);
1429 ret = ide_setup_pci_devices(dev, dev2, d);
1434 return ide_setup_pci_device(dev, d);
1437 static int __devinit init_setup_hpt372n(struct pci_dev *dev, ide_pci_device_t *d)
1439 pci_set_drvdata(dev, &hpt372n);
1441 return ide_setup_pci_device(dev, d);
1444 static int __devinit init_setup_hpt371(struct pci_dev *dev, ide_pci_device_t *d)
1446 struct hpt_info *info;
1449 if (dev->revision > 1) {
1450 d->name = "HPT371N";
1457 * HPT371 chips physically have only one channel, the secondary one,
1458 * but the primary channel registers do exist! Go figure...
1459 * So, we manually disable the non-existing channel here
1460 * (if the BIOS hasn't done this already).
1462 pci_read_config_byte(dev, 0x50, &mcr1);
1464 pci_write_config_byte(dev, 0x50, mcr1 & ~0x04);
1466 pci_set_drvdata(dev, info);
1468 return ide_setup_pci_device(dev, d);
1471 static int __devinit init_setup_hpt372a(struct pci_dev *dev, ide_pci_device_t *d)
1473 struct hpt_info *info;
1475 if (dev->revision > 1) {
1476 d->name = "HPT372N";
1481 pci_set_drvdata(dev, info);
1483 return ide_setup_pci_device(dev, d);
1486 static int __devinit init_setup_hpt302(struct pci_dev *dev, ide_pci_device_t *d)
1488 struct hpt_info *info;
1490 if (dev->revision > 1) {
1491 d->name = "HPT302N";
1496 pci_set_drvdata(dev, info);
1498 return ide_setup_pci_device(dev, d);
1501 static int __devinit init_setup_hpt366(struct pci_dev *dev, ide_pci_device_t *d)
1503 struct pci_dev *dev2;
1504 u8 rev = dev->revision;
1505 static char *chipset_names[] = { "HPT366", "HPT366", "HPT368",
1506 "HPT370", "HPT370A", "HPT372",
1508 static struct hpt_info *info[] = { &hpt36x, &hpt36x, &hpt36x,
1509 &hpt370, &hpt370a, &hpt372,
1512 if (PCI_FUNC(dev->devfn) & 1)
1520 * HPT36x chips have one channel per function and have
1521 * both channel enable bits located differently and visible
1522 * to both functions -- really stupid design decision... :-(
1523 * Bit 4 is for the primary channel, bit 5 for the secondary.
1525 d->host_flags |= IDE_HFLAG_SINGLE;
1526 d->enablebits[0].mask = d->enablebits[0].val = 0x10;
1528 d->udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ?
1529 ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2;
1533 d->udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4;
1540 d->udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5;
1544 d->name = chipset_names[rev];
1546 pci_set_drvdata(dev, info[rev]);
1551 if ((dev2 = pci_get_slot(dev->bus, dev->devfn + 1)) != NULL) {
1552 u8 mcr1 = 0, pin1 = 0, pin2 = 0;
1555 pci_set_drvdata(dev2, info[rev]);
1558 * Now we'll have to force both channels enabled if
1559 * at least one of them has been enabled by BIOS...
1561 pci_read_config_byte(dev, 0x50, &mcr1);
1563 pci_write_config_byte(dev, 0x50, mcr1 | 0x30);
1565 pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
1566 pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2);
1567 if (pin1 != pin2 && dev->irq == dev2->irq) {
1568 d->bootable = ON_BOARD;
1569 printk("%s: onboard version of chipset, pin1=%d pin2=%d\n",
1570 d->name, pin1, pin2);
1572 ret = ide_setup_pci_devices(dev, dev2, d);
1578 return ide_setup_pci_device(dev, d);
1581 static ide_pci_device_t hpt366_chipsets[] __devinitdata = {
1584 .init_setup = init_setup_hpt366,
1585 .init_chipset = init_chipset_hpt366,
1586 .init_hwif = init_hwif_hpt366,
1587 .init_dma = init_dma_hpt366,
1589 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1590 .bootable = OFF_BOARD,
1592 .pio_mask = ATA_PIO4,
1595 .init_setup = init_setup_hpt372a,
1596 .init_chipset = init_chipset_hpt366,
1597 .init_hwif = init_hwif_hpt366,
1598 .init_dma = init_dma_hpt366,
1600 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1601 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
1602 .bootable = OFF_BOARD,
1604 .pio_mask = ATA_PIO4,
1607 .init_setup = init_setup_hpt302,
1608 .init_chipset = init_chipset_hpt366,
1609 .init_hwif = init_hwif_hpt366,
1610 .init_dma = init_dma_hpt366,
1612 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1613 .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
1614 .bootable = OFF_BOARD,
1616 .pio_mask = ATA_PIO4,
1619 .init_setup = init_setup_hpt371,
1620 .init_chipset = init_chipset_hpt366,
1621 .init_hwif = init_hwif_hpt366,
1622 .init_dma = init_dma_hpt366,
1624 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1625 .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
1626 .bootable = OFF_BOARD,
1628 .pio_mask = ATA_PIO4,
1631 .init_setup = init_setup_hpt374,
1632 .init_chipset = init_chipset_hpt366,
1633 .init_hwif = init_hwif_hpt366,
1634 .init_dma = init_dma_hpt366,
1636 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1637 .udma_mask = ATA_UDMA5,
1638 .bootable = OFF_BOARD,
1640 .pio_mask = ATA_PIO4,
1643 .init_setup = init_setup_hpt372n,
1644 .init_chipset = init_chipset_hpt366,
1645 .init_hwif = init_hwif_hpt366,
1646 .init_dma = init_dma_hpt366,
1648 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1649 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
1650 .bootable = OFF_BOARD,
1652 .pio_mask = ATA_PIO4,
1657 * hpt366_init_one - called when an HPT366 is found
1658 * @dev: the hpt366 device
1659 * @id: the matching pci id
1661 * Called when the PCI registration layer (or the IDE initialization)
1662 * finds a device matching our IDE device tables.
1664 * NOTE: since we'll have to modify some fields of the ide_pci_device_t
1665 * structure depending on the chip's revision, we'd better pass a local
1666 * copy down the call chain...
1668 static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id)
1670 ide_pci_device_t d = hpt366_chipsets[id->driver_data];
1672 return d.init_setup(dev, &d);
1675 static struct pci_device_id hpt366_pci_tbl[] = {
1676 { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT366, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1677 { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1678 { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT302, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
1679 { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
1680 { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT374, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
1681 { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372N, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
1684 MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl);
1686 static struct pci_driver driver = {
1687 .name = "HPT366_IDE",
1688 .id_table = hpt366_pci_tbl,
1689 .probe = hpt366_init_one,
1692 static int __init hpt366_ide_init(void)
1694 return ide_pci_register_driver(&driver);
1697 module_init(hpt366_ide_init);
1699 MODULE_AUTHOR("Andre Hedrick");
1700 MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE");
1701 MODULE_LICENSE("GPL");