blob: b780e15e9f321e2c92731efd0b0f8307dfa43c64 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Promise TX2/TX4/TX2000/133 IDE driver
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Split from:
10 * linux/drivers/ide/pdc202xx.c Version 0.35 Mar. 30, 2002
11 * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
Sergei Shtylyovb10a0682006-12-08 02:39:59 -080012 * Copyright (C) 2005-2006 MontaVista Software, Inc.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 * Portions Copyright (C) 1999 Promise Technology, Inc.
14 * Author: Frank Tiernan (frankt@promise.com)
15 * Released under terms of General Public License
16 */
17
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <linux/module.h>
19#include <linux/types.h>
20#include <linux/kernel.h>
21#include <linux/delay.h>
22#include <linux/timer.h>
23#include <linux/mm.h>
24#include <linux/ioport.h>
25#include <linux/blkdev.h>
26#include <linux/hdreg.h>
27#include <linux/interrupt.h>
28#include <linux/pci.h>
29#include <linux/init.h>
30#include <linux/ide.h>
31
32#include <asm/io.h>
33#include <asm/irq.h>
34
35#ifdef CONFIG_PPC_PMAC
36#include <asm/prom.h>
37#include <asm/pci-bridge.h>
38#endif
39
40#define PDC202_DEBUG_CABLE 0
41
Sergei Shtylyov47694bb2006-12-10 02:19:13 -080042#undef DEBUG
43
44#ifdef DEBUG
45#define DBG(fmt, args...) printk("%s: " fmt, __FUNCTION__, ## args)
46#else
47#define DBG(fmt, args...)
48#endif
49
Jesper Juhl3c6bee12006-01-09 20:54:01 -080050static const char *pdc_quirk_drives[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 "QUANTUM FIREBALLlct08 08",
52 "QUANTUM FIREBALLP KA6.4",
53 "QUANTUM FIREBALLP KA9.1",
54 "QUANTUM FIREBALLP LM20.4",
55 "QUANTUM FIREBALLP KX13.6",
56 "QUANTUM FIREBALLP KX20.5",
57 "QUANTUM FIREBALLP KX27.3",
58 "QUANTUM FIREBALLP LM20.5",
59 NULL
60};
61
Sergei Shtylyov47694bb2006-12-10 02:19:13 -080062static u8 max_dma_rate(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -070063{
64 u8 mode;
65
Sergei Shtylyov47694bb2006-12-10 02:19:13 -080066 switch(pdev->device) {
Linus Torvalds1da177e2005-04-16 15:20:36 -070067 case PCI_DEVICE_ID_PROMISE_20277:
68 case PCI_DEVICE_ID_PROMISE_20276:
69 case PCI_DEVICE_ID_PROMISE_20275:
70 case PCI_DEVICE_ID_PROMISE_20271:
71 case PCI_DEVICE_ID_PROMISE_20269:
72 mode = 4;
73 break;
74 case PCI_DEVICE_ID_PROMISE_20270:
75 case PCI_DEVICE_ID_PROMISE_20268:
76 mode = 3;
77 break;
78 default:
79 return 0;
80 }
Sergei Shtylyov47694bb2006-12-10 02:19:13 -080081
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 return mode;
83}
84
Sergei Shtylyov47694bb2006-12-10 02:19:13 -080085static u8 pdcnew_ratemask(ide_drive_t *drive)
86{
87 u8 mode = max_dma_rate(HWIF(drive)->pci_dev);
88
89 if (!eighty_ninty_three(drive))
90 mode = min_t(u8, mode, 1);
91
92 return mode;
93}
94
Sergei Shtylyov47694bb2006-12-10 02:19:13 -080095/**
96 * get_indexed_reg - Get indexed register
97 * @hwif: for the port address
98 * @index: index of the indexed register
99 */
100static u8 get_indexed_reg(ide_hwif_t *hwif, u8 index)
101{
102 u8 value;
103
Bartlomiej Zolnierkiewicz0ecdca22007-02-17 02:40:25 +0100104 outb(index, hwif->dma_vendor1);
105 value = inb(hwif->dma_vendor3);
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800106
107 DBG("index[%02X] value[%02X]\n", index, value);
108 return value;
109}
110
111/**
112 * set_indexed_reg - Set indexed register
113 * @hwif: for the port address
114 * @index: index of the indexed register
115 */
116static void set_indexed_reg(ide_hwif_t *hwif, u8 index, u8 value)
117{
Bartlomiej Zolnierkiewicz0ecdca22007-02-17 02:40:25 +0100118 outb(index, hwif->dma_vendor1);
119 outb(value, hwif->dma_vendor3);
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800120 DBG("index[%02X] value[%02X]\n", index, value);
121}
122
123/*
124 * ATA Timing Tables based on 133 MHz PLL output clock.
125 *
126 * If the PLL outputs 100 MHz clock, the ASIC hardware will set
127 * the timing registers automatically when "set features" command is
128 * issued to the device. However, if the PLL output clock is 133 MHz,
129 * the following tables must be used.
130 */
131static struct pio_timing {
132 u8 reg0c, reg0d, reg13;
133} pio_timings [] = {
134 { 0xfb, 0x2b, 0xac }, /* PIO mode 0, IORDY off, Prefetch off */
135 { 0x46, 0x29, 0xa4 }, /* PIO mode 1, IORDY off, Prefetch off */
136 { 0x23, 0x26, 0x64 }, /* PIO mode 2, IORDY off, Prefetch off */
137 { 0x27, 0x0d, 0x35 }, /* PIO mode 3, IORDY on, Prefetch off */
138 { 0x23, 0x09, 0x25 }, /* PIO mode 4, IORDY on, Prefetch off */
139};
140
141static struct mwdma_timing {
142 u8 reg0e, reg0f;
143} mwdma_timings [] = {
144 { 0xdf, 0x5f }, /* MWDMA mode 0 */
145 { 0x6b, 0x27 }, /* MWDMA mode 1 */
146 { 0x69, 0x25 }, /* MWDMA mode 2 */
147};
148
149static struct udma_timing {
150 u8 reg10, reg11, reg12;
151} udma_timings [] = {
152 { 0x4a, 0x0f, 0xd5 }, /* UDMA mode 0 */
153 { 0x3a, 0x0a, 0xd0 }, /* UDMA mode 1 */
154 { 0x2a, 0x07, 0xcd }, /* UDMA mode 2 */
155 { 0x1a, 0x05, 0xcd }, /* UDMA mode 3 */
156 { 0x1a, 0x03, 0xcd }, /* UDMA mode 4 */
157 { 0x1a, 0x02, 0xcb }, /* UDMA mode 5 */
158 { 0x1a, 0x01, 0xcb }, /* UDMA mode 6 */
159};
160
161static int pdcnew_tune_chipset(ide_drive_t *drive, u8 speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162{
163 ide_hwif_t *hwif = HWIF(drive);
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800164 u8 adj = (drive->dn & 1) ? 0x08 : 0x00;
165 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800167 speed = ide_rate_filter(pdcnew_ratemask(drive), speed);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800169 /*
170 * Issue SETFEATURES_XFER to the drive first. PDC202xx hardware will
171 * automatically set the timing registers based on 100 MHz PLL output.
172 */
173 err = ide_config_drive_speed(drive, speed);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800175 /*
176 * As we set up the PLL to output 133 MHz for UltraDMA/133 capable
177 * chips, we must override the default register settings...
178 */
179 if (max_dma_rate(hwif->pci_dev) == 4) {
180 u8 mode = speed & 0x07;
181
182 switch (speed) {
183 case XFER_UDMA_6:
184 case XFER_UDMA_5:
185 case XFER_UDMA_4:
186 case XFER_UDMA_3:
187 case XFER_UDMA_2:
188 case XFER_UDMA_1:
189 case XFER_UDMA_0:
190 set_indexed_reg(hwif, 0x10 + adj,
191 udma_timings[mode].reg10);
192 set_indexed_reg(hwif, 0x11 + adj,
193 udma_timings[mode].reg11);
194 set_indexed_reg(hwif, 0x12 + adj,
195 udma_timings[mode].reg12);
196 break;
197
198 case XFER_MW_DMA_2:
199 case XFER_MW_DMA_1:
200 case XFER_MW_DMA_0:
201 set_indexed_reg(hwif, 0x0e + adj,
202 mwdma_timings[mode].reg0e);
203 set_indexed_reg(hwif, 0x0f + adj,
204 mwdma_timings[mode].reg0f);
205 break;
206 case XFER_PIO_4:
207 case XFER_PIO_3:
208 case XFER_PIO_2:
209 case XFER_PIO_1:
210 case XFER_PIO_0:
211 set_indexed_reg(hwif, 0x0c + adj,
212 pio_timings[mode].reg0c);
213 set_indexed_reg(hwif, 0x0d + adj,
214 pio_timings[mode].reg0d);
215 set_indexed_reg(hwif, 0x13 + adj,
216 pio_timings[mode].reg13);
217 break;
218 default:
219 printk(KERN_ERR "pdc202xx_new: "
220 "Unknown speed %d ignored\n", speed);
221 }
222 } else if (speed == XFER_UDMA_2) {
223 /* Set tHOLD bit to 0 if using UDMA mode 2 */
224 u8 tmp = get_indexed_reg(hwif, 0x10 + adj);
225
226 set_indexed_reg(hwif, 0x10 + adj, tmp & 0x7f);
227 }
228
229 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230}
231
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
233{
Sergei Shtylyovb10a0682006-12-08 02:39:59 -0800234 pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800235 (void)pdcnew_tune_chipset(drive, XFER_PIO_0 + pio);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236}
237
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800238static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239{
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800240 return get_indexed_reg(hwif, 0x0b) & 0x04;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241}
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800242
243static int config_chipset_for_dma(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244{
245 struct hd_driveid *id = drive->id;
246 ide_hwif_t *hwif = HWIF(drive);
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800247 u8 ultra_66 = (id->dma_ultra & 0x0078) ? 1 : 0;
248 u8 cable = pdcnew_cable_detect(hwif);
249 u8 speed;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250
251 if (ultra_66 && cable) {
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800252 printk(KERN_WARNING "Warning: %s channel "
253 "requires an 80-pin cable for operation.\n",
254 hwif->channel ? "Secondary" : "Primary");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
256 }
257
258 if (drive->media != ide_disk)
259 return 0;
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800260
261 if (id->capability & 4) {
262 /*
263 * Set IORDY_EN & PREFETCH_EN (this seems to have
264 * NO real effect since this register is reloaded
265 * by hardware when the transfer mode is selected)
266 */
267 u8 tmp, adj = (drive->dn & 1) ? 0x08 : 0x00;
268
269 tmp = get_indexed_reg(hwif, 0x13 + adj);
270 set_indexed_reg(hwif, 0x13 + adj, tmp | 0x03);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 }
272
273 speed = ide_dma_speed(drive, pdcnew_ratemask(drive));
274
Sergei Shtylyovb10a0682006-12-08 02:39:59 -0800275 if (!speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277
278 (void) hwif->speedproc(drive, speed);
279 return ide_dma_enable(drive);
280}
281
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800282static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283{
284 ide_hwif_t *hwif = HWIF(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285
286 drive->init_speed = 0;
287
Bartlomiej Zolnierkiewicz7569e8d2007-02-17 02:40:25 +0100288 if (ide_use_dma(drive) && config_chipset_for_dma(drive))
289 return hwif->ide_dma_on(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290
Bartlomiej Zolnierkiewiczd8f44692007-02-17 02:40:25 +0100291 if (ide_use_fast_pio(drive))
Sergei Shtylyovb10a0682006-12-08 02:39:59 -0800292 hwif->tuneproc(drive, 255);
Bartlomiej Zolnierkiewiczd8f44692007-02-17 02:40:25 +0100293
294 return hwif->ide_dma_off_quietly(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295}
296
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800297static int pdcnew_quirkproc(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298{
Sergei Shtylyovd24ec422007-02-07 18:18:39 +0100299 const char **list, *model = drive->id->model;
300
301 for (list = pdc_quirk_drives; *list != NULL; list++)
302 if (strstr(model, *list) != NULL)
303 return 2;
304 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305}
306
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800307static void pdcnew_reset(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308{
309 /*
310 * Deleted this because it is redundant from the caller.
311 */
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800312 printk(KERN_WARNING "pdc202xx_new: %s channel reset.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 HWIF(drive)->channel ? "Secondary" : "Primary");
314}
315
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800316/**
317 * read_counter - Read the byte count registers
318 * @dma_base: for the port address
319 */
320static long __devinit read_counter(u32 dma_base)
321{
322 u32 pri_dma_base = dma_base, sec_dma_base = dma_base + 0x08;
323 u8 cnt0, cnt1, cnt2, cnt3;
324 long count = 0, last;
325 int retry = 3;
326
327 do {
328 last = count;
329
330 /* Read the current count */
331 outb(0x20, pri_dma_base + 0x01);
332 cnt0 = inb(pri_dma_base + 0x03);
333 outb(0x21, pri_dma_base + 0x01);
334 cnt1 = inb(pri_dma_base + 0x03);
335 outb(0x20, sec_dma_base + 0x01);
336 cnt2 = inb(sec_dma_base + 0x03);
337 outb(0x21, sec_dma_base + 0x01);
338 cnt3 = inb(sec_dma_base + 0x03);
339
340 count = (cnt3 << 23) | (cnt2 << 15) | (cnt1 << 8) | cnt0;
341
342 /*
343 * The 30-bit decrementing counter is read in 4 pieces.
344 * Incorrect value may be read when the most significant bytes
345 * are changing...
346 */
347 } while (retry-- && (((last ^ count) & 0x3fff8000) || last < count));
348
349 DBG("cnt0[%02X] cnt1[%02X] cnt2[%02X] cnt3[%02X]\n",
350 cnt0, cnt1, cnt2, cnt3);
351
352 return count;
353}
354
355/**
356 * detect_pll_input_clock - Detect the PLL input clock in Hz.
357 * @dma_base: for the port address
358 * E.g. 16949000 on 33 MHz PCI bus, i.e. half of the PCI clock.
359 */
360static long __devinit detect_pll_input_clock(unsigned long dma_base)
361{
362 long start_count, end_count;
363 long pll_input;
364 u8 scr1;
365
366 start_count = read_counter(dma_base);
367
368 /* Start the test mode */
369 outb(0x01, dma_base + 0x01);
370 scr1 = inb(dma_base + 0x03);
371 DBG("scr1[%02X]\n", scr1);
372 outb(scr1 | 0x40, dma_base + 0x03);
373
374 /* Let the counter run for 10 ms. */
375 mdelay(10);
376
377 end_count = read_counter(dma_base);
378
379 /* Stop the test mode */
380 outb(0x01, dma_base + 0x01);
381 scr1 = inb(dma_base + 0x03);
382 DBG("scr1[%02X]\n", scr1);
383 outb(scr1 & ~0x40, dma_base + 0x03);
384
385 /*
386 * Calculate the input clock in Hz
387 * (the clock counter is 30 bit wide and counts down)
388 */
389 pll_input = ((start_count - end_count) & 0x3ffffff) * 100;
390
391 DBG("start[%ld] end[%ld]\n", start_count, end_count);
392
393 return pll_input;
394}
395
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396#ifdef CONFIG_PPC_PMAC
397static void __devinit apple_kiwi_init(struct pci_dev *pdev)
398{
399 struct device_node *np = pci_device_to_OF_node(pdev);
400 unsigned int class_rev = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 u8 conf;
402
403 if (np == NULL || !device_is_compatible(np, "kiwi-root"))
404 return;
405
406 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
407 class_rev &= 0xff;
408
409 if (class_rev >= 0x03) {
410 /* Setup chip magic config stuff (from darwin) */
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800411 pci_read_config_byte (pdev, 0x40, &conf);
412 pci_write_config_byte(pdev, 0x40, (conf | 0x01));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414}
415#endif /* CONFIG_PPC_PMAC */
416
417static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name)
418{
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800419 unsigned long dma_base = pci_resource_start(dev, 4);
420 unsigned long sec_dma_base = dma_base + 0x08;
421 long pll_input, pll_output, ratio;
422 int f, r;
423 u8 pll_ctl0, pll_ctl1;
424
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 if (dev->resource[PCI_ROM_RESOURCE].start) {
426 pci_write_config_dword(dev, PCI_ROM_ADDRESS,
427 dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
Greg Kroah-Hartman08f46de2006-06-12 15:15:59 -0700428 printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name,
429 (unsigned long)dev->resource[PCI_ROM_RESOURCE].start);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 }
431
432#ifdef CONFIG_PPC_PMAC
433 apple_kiwi_init(dev);
434#endif
435
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800436 /* Calculate the required PLL output frequency */
437 switch(max_dma_rate(dev)) {
438 case 4: /* it's 133 MHz for Ultra133 chips */
439 pll_output = 133333333;
440 break;
441 case 3: /* and 100 MHz for Ultra100 chips */
442 default:
443 pll_output = 100000000;
444 break;
445 }
446
447 /*
448 * Detect PLL input clock.
449 * On some systems, where PCI bus is running at non-standard clock rate
450 * (e.g. 25 or 40 MHz), we have to adjust the cycle time.
451 * PDC20268 and newer chips employ PLL circuit to help correct timing
452 * registers setting.
453 */
454 pll_input = detect_pll_input_clock(dma_base);
455 printk("%s: PLL input clock is %ld kHz\n", name, pll_input / 1000);
456
457 /* Sanity check */
458 if (unlikely(pll_input < 5000000L || pll_input > 70000000L)) {
459 printk(KERN_ERR "%s: Bad PLL input clock %ld Hz, giving up!\n",
460 name, pll_input);
461 goto out;
462 }
463
464#ifdef DEBUG
465 DBG("pll_output is %ld Hz\n", pll_output);
466
467 /* Show the current clock value of PLL control register
468 * (maybe already configured by the BIOS)
469 */
470 outb(0x02, sec_dma_base + 0x01);
471 pll_ctl0 = inb(sec_dma_base + 0x03);
472 outb(0x03, sec_dma_base + 0x01);
473 pll_ctl1 = inb(sec_dma_base + 0x03);
474
475 DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
476#endif
477
478 /*
479 * Calculate the ratio of F, R and NO
480 * POUT = (F + 2) / (( R + 2) * NO)
481 */
482 ratio = pll_output / (pll_input / 1000);
483 if (ratio < 8600L) { /* 8.6x */
484 /* Using NO = 0x01, R = 0x0d */
485 r = 0x0d;
486 } else if (ratio < 12900L) { /* 12.9x */
487 /* Using NO = 0x01, R = 0x08 */
488 r = 0x08;
489 } else if (ratio < 16100L) { /* 16.1x */
490 /* Using NO = 0x01, R = 0x06 */
491 r = 0x06;
492 } else if (ratio < 64000L) { /* 64x */
493 r = 0x00;
494 } else {
495 /* Invalid ratio */
496 printk(KERN_ERR "%s: Bad ratio %ld, giving up!\n", name, ratio);
497 goto out;
498 }
499
500 f = (ratio * (r + 2)) / 1000 - 2;
501
502 DBG("F[%d] R[%d] ratio*1000[%ld]\n", f, r, ratio);
503
504 if (unlikely(f < 0 || f > 127)) {
505 /* Invalid F */
506 printk(KERN_ERR "%s: F[%d] invalid!\n", name, f);
507 goto out;
508 }
509
510 pll_ctl0 = (u8) f;
511 pll_ctl1 = (u8) r;
512
513 DBG("Writing pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
514
515 outb(0x02, sec_dma_base + 0x01);
516 outb(pll_ctl0, sec_dma_base + 0x03);
517 outb(0x03, sec_dma_base + 0x01);
518 outb(pll_ctl1, sec_dma_base + 0x03);
519
520 /* Wait the PLL circuit to be stable */
521 mdelay(30);
522
523#ifdef DEBUG
524 /*
525 * Show the current clock value of PLL control register
526 */
527 outb(0x02, sec_dma_base + 0x01);
528 pll_ctl0 = inb(sec_dma_base + 0x03);
529 outb(0x03, sec_dma_base + 0x01);
530 pll_ctl1 = inb(sec_dma_base + 0x03);
531
532 DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
533#endif
534
535 out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 return dev->irq;
537}
538
539static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
540{
541 hwif->autodma = 0;
542
543 hwif->tuneproc = &pdcnew_tune_drive;
544 hwif->quirkproc = &pdcnew_quirkproc;
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800545 hwif->speedproc = &pdcnew_tune_chipset;
546 hwif->resetproc = &pdcnew_reset;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547
548 hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
549
550 hwif->ultra_mask = 0x7f;
551 hwif->mwdma_mask = 0x07;
552
Alan Cox3706a872006-06-28 04:27:03 -0700553 hwif->err_stops_fifo = 1;
554
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555 hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800556
557 if (!hwif->udma_four)
558 hwif->udma_four = pdcnew_cable_detect(hwif) ? 0 : 1;
559
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560 if (!noautodma)
561 hwif->autodma = 1;
562 hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
Sergei Shtylyov47694bb2006-12-10 02:19:13 -0800563
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564#if PDC202_DEBUG_CABLE
565 printk(KERN_DEBUG "%s: %s-pin cable\n",
566 hwif->name, hwif->udma_four ? "80" : "40");
567#endif /* PDC202_DEBUG_CABLE */
568}
569
570static int __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d)
571{
572 return ide_setup_pci_device(dev, d);
573}
574
575static int __devinit init_setup_pdc20270(struct pci_dev *dev,
576 ide_pci_device_t *d)
577{
578 struct pci_dev *findev = NULL;
Alan Coxb1489002006-12-08 02:39:58 -0800579 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580
581 if ((dev->bus->self &&
582 dev->bus->self->vendor == PCI_VENDOR_ID_DEC) &&
583 (dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) {
584 if (PCI_SLOT(dev->devfn) & 2)
585 return -ENODEV;
586 d->extra = 0;
Alan Coxb1489002006-12-08 02:39:58 -0800587 while ((findev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588 if ((findev->vendor == dev->vendor) &&
589 (findev->device == dev->device) &&
590 (PCI_SLOT(findev->devfn) & 2)) {
591 if (findev->irq != dev->irq) {
592 findev->irq = dev->irq;
593 }
Alan Coxb1489002006-12-08 02:39:58 -0800594 ret = ide_setup_pci_devices(dev, findev, d);
595 pci_dev_put(findev);
596 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 }
598 }
599 }
600 return ide_setup_pci_device(dev, d);
601}
602
603static int __devinit init_setup_pdc20276(struct pci_dev *dev,
604 ide_pci_device_t *d)
605{
606 if ((dev->bus->self) &&
607 (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
608 ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
609 (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
610 printk(KERN_INFO "ide: Skipping Promise PDC20276 "
611 "attached to I2O RAID controller.\n");
612 return -ENODEV;
613 }
614 return ide_setup_pci_device(dev, d);
615}
616
617static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
618 { /* 0 */
619 .name = "PDC20268",
620 .init_setup = init_setup_pdcnew,
621 .init_chipset = init_chipset_pdcnew,
622 .init_hwif = init_hwif_pdc202new,
623 .channels = 2,
624 .autodma = AUTODMA,
625 .bootable = OFF_BOARD,
626 },{ /* 1 */
627 .name = "PDC20269",
628 .init_setup = init_setup_pdcnew,
629 .init_chipset = init_chipset_pdcnew,
630 .init_hwif = init_hwif_pdc202new,
631 .channels = 2,
632 .autodma = AUTODMA,
633 .bootable = OFF_BOARD,
634 },{ /* 2 */
635 .name = "PDC20270",
636 .init_setup = init_setup_pdc20270,
637 .init_chipset = init_chipset_pdcnew,
638 .init_hwif = init_hwif_pdc202new,
639 .channels = 2,
640 .autodma = AUTODMA,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641 .bootable = OFF_BOARD,
642 },{ /* 3 */
643 .name = "PDC20271",
644 .init_setup = init_setup_pdcnew,
645 .init_chipset = init_chipset_pdcnew,
646 .init_hwif = init_hwif_pdc202new,
647 .channels = 2,
648 .autodma = AUTODMA,
649 .bootable = OFF_BOARD,
650 },{ /* 4 */
651 .name = "PDC20275",
652 .init_setup = init_setup_pdcnew,
653 .init_chipset = init_chipset_pdcnew,
654 .init_hwif = init_hwif_pdc202new,
655 .channels = 2,
656 .autodma = AUTODMA,
657 .bootable = OFF_BOARD,
658 },{ /* 5 */
659 .name = "PDC20276",
660 .init_setup = init_setup_pdc20276,
661 .init_chipset = init_chipset_pdcnew,
662 .init_hwif = init_hwif_pdc202new,
663 .channels = 2,
664 .autodma = AUTODMA,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 .bootable = OFF_BOARD,
666 },{ /* 6 */
667 .name = "PDC20277",
668 .init_setup = init_setup_pdcnew,
669 .init_chipset = init_chipset_pdcnew,
670 .init_hwif = init_hwif_pdc202new,
671 .channels = 2,
672 .autodma = AUTODMA,
673 .bootable = OFF_BOARD,
674 }
675};
676
677/**
678 * pdc202new_init_one - called when a pdc202xx is found
679 * @dev: the pdc202new device
680 * @id: the matching pci id
681 *
682 * Called when the PCI registration layer (or the IDE initialization)
683 * finds a device matching our IDE device tables.
684 */
685
686static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id)
687{
688 ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data];
689
690 return d->init_setup(dev, d);
691}
692
693static struct pci_device_id pdc202new_pci_tbl[] = {
694 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
695 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
696 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
697 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
698 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
699 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
700 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
701 { 0, },
702};
703MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl);
704
705static struct pci_driver driver = {
706 .name = "Promise_IDE",
707 .id_table = pdc202new_pci_tbl,
708 .probe = pdc202new_init_one,
709};
710
Bartlomiej Zolnierkiewicz82ab1ee2007-01-27 13:46:56 +0100711static int __init pdc202new_ide_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712{
713 return ide_pci_register_driver(&driver);
714}
715
716module_init(pdc202new_ide_init);
717
718MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
719MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher");
720MODULE_LICENSE("GPL");