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[people/ms/u-boot.git] / common / cmd_ide.c
1 /*
2 * (C) Copyright 2000-2005
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 *
23 */
24
25 /*
26 * IDE support
27 */
28 #include <common.h>
29 #include <config.h>
30 #include <watchdog.h>
31 #include <command.h>
32 #include <image.h>
33 #include <asm/byteorder.h>
34 #include <asm/io.h>
35
36 #if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA)
37 # include <pcmcia.h>
38 #endif
39
40 #ifdef CONFIG_8xx
41 # include <mpc8xx.h>
42 #endif
43
44 #ifdef CONFIG_MPC5xxx
45 #include <mpc5xxx.h>
46 #endif
47
48 #include <ide.h>
49 #include <ata.h>
50
51 #ifdef CONFIG_STATUS_LED
52 # include <status_led.h>
53 #endif
54
55 #ifndef __PPC__
56 #include <asm/io.h>
57 #endif
58
59 #ifdef CONFIG_IDE_8xx_DIRECT
60 DECLARE_GLOBAL_DATA_PTR;
61 #endif
62
63 #ifdef __PPC__
64 # define EIEIO __asm__ volatile ("eieio")
65 # define SYNC __asm__ volatile ("sync")
66 #else
67 # define EIEIO /* nothing */
68 # define SYNC /* nothing */
69 #endif
70
71 #ifdef CONFIG_IDE_8xx_DIRECT
72 /* Timings for IDE Interface
73 *
74 * SETUP / LENGTH / HOLD - cycles valid for 50 MHz clk
75 * 70 165 30 PIO-Mode 0, [ns]
76 * 4 9 2 [Cycles]
77 * 50 125 20 PIO-Mode 1, [ns]
78 * 3 7 2 [Cycles]
79 * 30 100 15 PIO-Mode 2, [ns]
80 * 2 6 1 [Cycles]
81 * 30 80 10 PIO-Mode 3, [ns]
82 * 2 5 1 [Cycles]
83 * 25 70 10 PIO-Mode 4, [ns]
84 * 2 4 1 [Cycles]
85 */
86
87 const static pio_config_t pio_config_ns [IDE_MAX_PIO_MODE+1] =
88 {
89 /* Setup Length Hold */
90 { 70, 165, 30 }, /* PIO-Mode 0, [ns] */
91 { 50, 125, 20 }, /* PIO-Mode 1, [ns] */
92 { 30, 101, 15 }, /* PIO-Mode 2, [ns] */
93 { 30, 80, 10 }, /* PIO-Mode 3, [ns] */
94 { 25, 70, 10 }, /* PIO-Mode 4, [ns] */
95 };
96
97 static pio_config_t pio_config_clk [IDE_MAX_PIO_MODE+1];
98
99 #ifndef CFG_PIO_MODE
100 #define CFG_PIO_MODE 0 /* use a relaxed default */
101 #endif
102 static int pio_mode = CFG_PIO_MODE;
103
104 /* Make clock cycles and always round up */
105
106 #define PCMCIA_MK_CLKS( t, T ) (( (t) * (T) + 999U ) / 1000U )
107
108 #endif /* CONFIG_IDE_8xx_DIRECT */
109
110 /* ------------------------------------------------------------------------- */
111
112 /* Current I/O Device */
113 static int curr_device = -1;
114
115 /* Current offset for IDE0 / IDE1 bus access */
116 ulong ide_bus_offset[CFG_IDE_MAXBUS] = {
117 #if defined(CFG_ATA_IDE0_OFFSET)
118 CFG_ATA_IDE0_OFFSET,
119 #endif
120 #if defined(CFG_ATA_IDE1_OFFSET) && (CFG_IDE_MAXBUS > 1)
121 CFG_ATA_IDE1_OFFSET,
122 #endif
123 };
124
125
126 #ifndef CONFIG_AMIGAONEG3SE
127 static int ide_bus_ok[CFG_IDE_MAXBUS];
128 #else
129 static int ide_bus_ok[CFG_IDE_MAXBUS] = {0,};
130 #endif
131
132 block_dev_desc_t ide_dev_desc[CFG_IDE_MAXDEVICE];
133 /* ------------------------------------------------------------------------- */
134
135 #ifdef CONFIG_IDE_LED
136 #if !defined(CONFIG_KUP4K) && !defined(CONFIG_KUP4X) &&!defined(CONFIG_BMS2003) &&!defined(CONFIG_CPC45)
137 static void ide_led (uchar led, uchar status);
138 #else
139 extern void ide_led (uchar led, uchar status);
140 #endif
141 #else
142 #ifndef CONFIG_AMIGAONEG3SE
143 #define ide_led(a,b) /* dummy */
144 #else
145 extern void ide_led(uchar led, uchar status);
146 #define LED_IDE1 1
147 #define LED_IDE2 2
148 #define CONFIG_IDE_LED 1
149 #define DEVICE_LED(x) 1
150 #endif
151 #endif
152
153 #ifdef CONFIG_IDE_RESET
154 static void ide_reset (void);
155 #else
156 #define ide_reset() /* dummy */
157 #endif
158
159 static void ide_ident (block_dev_desc_t *dev_desc);
160 static uchar ide_wait (int dev, ulong t);
161
162 #define IDE_TIME_OUT 2000 /* 2 sec timeout */
163
164 #define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */
165
166 #define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */
167
168 void inline ide_outb(int dev, int port, unsigned char val);
169 unsigned char inline ide_inb(int dev, int port);
170 static void input_data(int dev, ulong *sect_buf, int words);
171 static void output_data(int dev, ulong *sect_buf, int words);
172 static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
173
174 #ifndef CFG_ATA_PORT_ADDR
175 #define CFG_ATA_PORT_ADDR(port) (port)
176 #endif
177
178 #ifdef CONFIG_ATAPI
179 static void atapi_inquiry(block_dev_desc_t *dev_desc);
180 ulong atapi_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer);
181 #endif
182
183
184 #ifdef CONFIG_IDE_8xx_DIRECT
185 static void set_pcmcia_timing (int pmode);
186 #endif
187
188 /* ------------------------------------------------------------------------- */
189
190 int do_ide (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
191 {
192 int rcode = 0;
193
194 switch (argc) {
195 case 0:
196 case 1:
197 printf ("Usage:\n%s\n", cmdtp->usage);
198 return 1;
199 case 2:
200 if (strncmp(argv[1],"res",3) == 0) {
201 puts ("\nReset IDE"
202 #ifdef CONFIG_IDE_8xx_DIRECT
203 " on PCMCIA " PCMCIA_SLOT_MSG
204 #endif
205 ": ");
206
207 ide_init ();
208 return 0;
209 } else if (strncmp(argv[1],"inf",3) == 0) {
210 int i;
211
212 putc ('\n');
213
214 for (i=0; i<CFG_IDE_MAXDEVICE; ++i) {
215 if (ide_dev_desc[i].type==DEV_TYPE_UNKNOWN)
216 continue; /* list only known devices */
217 printf ("IDE device %d: ", i);
218 dev_print(&ide_dev_desc[i]);
219 }
220 return 0;
221
222 } else if (strncmp(argv[1],"dev",3) == 0) {
223 if ((curr_device < 0) || (curr_device >= CFG_IDE_MAXDEVICE)) {
224 puts ("\nno IDE devices available\n");
225 return 1;
226 }
227 printf ("\nIDE device %d: ", curr_device);
228 dev_print(&ide_dev_desc[curr_device]);
229 return 0;
230 } else if (strncmp(argv[1],"part",4) == 0) {
231 int dev, ok;
232
233 for (ok=0, dev=0; dev<CFG_IDE_MAXDEVICE; ++dev) {
234 if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
235 ++ok;
236 if (dev)
237 putc ('\n');
238 print_part(&ide_dev_desc[dev]);
239 }
240 }
241 if (!ok) {
242 puts ("\nno IDE devices available\n");
243 rcode ++;
244 }
245 return rcode;
246 }
247 printf ("Usage:\n%s\n", cmdtp->usage);
248 return 1;
249 case 3:
250 if (strncmp(argv[1],"dev",3) == 0) {
251 int dev = (int)simple_strtoul(argv[2], NULL, 10);
252
253 printf ("\nIDE device %d: ", dev);
254 if (dev >= CFG_IDE_MAXDEVICE) {
255 puts ("unknown device\n");
256 return 1;
257 }
258 dev_print(&ide_dev_desc[dev]);
259 /*ide_print (dev);*/
260
261 if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
262 return 1;
263 }
264
265 curr_device = dev;
266
267 puts ("... is now current device\n");
268
269 return 0;
270 } else if (strncmp(argv[1],"part",4) == 0) {
271 int dev = (int)simple_strtoul(argv[2], NULL, 10);
272
273 if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
274 print_part(&ide_dev_desc[dev]);
275 } else {
276 printf ("\nIDE device %d not available\n", dev);
277 rcode = 1;
278 }
279 return rcode;
280 #if 0
281 } else if (strncmp(argv[1],"pio",4) == 0) {
282 int mode = (int)simple_strtoul(argv[2], NULL, 10);
283
284 if ((mode >= 0) && (mode <= IDE_MAX_PIO_MODE)) {
285 puts ("\nSetting ");
286 pio_mode = mode;
287 ide_init ();
288 } else {
289 printf ("\nInvalid PIO mode %d (0 ... %d only)\n",
290 mode, IDE_MAX_PIO_MODE);
291 }
292 return;
293 #endif
294 }
295
296 printf ("Usage:\n%s\n", cmdtp->usage);
297 return 1;
298 default:
299 /* at least 4 args */
300
301 if (strcmp(argv[1],"read") == 0) {
302 ulong addr = simple_strtoul(argv[2], NULL, 16);
303 ulong cnt = simple_strtoul(argv[4], NULL, 16);
304 ulong n;
305 #ifdef CFG_64BIT_STRTOUL
306 lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
307
308 printf ("\nIDE read: device %d block # %qd, count %ld ... ",
309 curr_device, blk, cnt);
310 #else
311 lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
312
313 printf ("\nIDE read: device %d block # %ld, count %ld ... ",
314 curr_device, blk, cnt);
315 #endif
316
317 n = ide_dev_desc[curr_device].block_read (curr_device,
318 blk, cnt,
319 (ulong *)addr);
320 /* flush cache after read */
321 flush_cache (addr, cnt*ide_dev_desc[curr_device].blksz);
322
323 printf ("%ld blocks read: %s\n",
324 n, (n==cnt) ? "OK" : "ERROR");
325 if (n==cnt) {
326 return 0;
327 } else {
328 return 1;
329 }
330 } else if (strcmp(argv[1],"write") == 0) {
331 ulong addr = simple_strtoul(argv[2], NULL, 16);
332 ulong cnt = simple_strtoul(argv[4], NULL, 16);
333 ulong n;
334 #ifdef CFG_64BIT_STRTOUL
335 lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
336
337 printf ("\nIDE write: device %d block # %qd, count %ld ... ",
338 curr_device, blk, cnt);
339 #else
340 lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
341
342 printf ("\nIDE write: device %d block # %ld, count %ld ... ",
343 curr_device, blk, cnt);
344 #endif
345
346 n = ide_write (curr_device, blk, cnt, (ulong *)addr);
347
348 printf ("%ld blocks written: %s\n",
349 n, (n==cnt) ? "OK" : "ERROR");
350 if (n==cnt) {
351 return 0;
352 } else {
353 return 1;
354 }
355 } else {
356 printf ("Usage:\n%s\n", cmdtp->usage);
357 rcode = 1;
358 }
359
360 return rcode;
361 }
362 }
363
364 int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
365 {
366 char *boot_device = NULL;
367 char *ep;
368 int dev, part = 0;
369 ulong addr, cnt, checksum;
370 disk_partition_t info;
371 image_header_t *hdr;
372 int rcode = 0;
373
374 show_boot_progress (41);
375 switch (argc) {
376 case 1:
377 addr = CFG_LOAD_ADDR;
378 boot_device = getenv ("bootdevice");
379 break;
380 case 2:
381 addr = simple_strtoul(argv[1], NULL, 16);
382 boot_device = getenv ("bootdevice");
383 break;
384 case 3:
385 addr = simple_strtoul(argv[1], NULL, 16);
386 boot_device = argv[2];
387 break;
388 default:
389 printf ("Usage:\n%s\n", cmdtp->usage);
390 show_boot_progress (-42);
391 return 1;
392 }
393 show_boot_progress (42);
394
395 if (!boot_device) {
396 puts ("\n** No boot device **\n");
397 show_boot_progress (-43);
398 return 1;
399 }
400 show_boot_progress (43);
401
402 dev = simple_strtoul(boot_device, &ep, 16);
403
404 if (ide_dev_desc[dev].type==DEV_TYPE_UNKNOWN) {
405 printf ("\n** Device %d not available\n", dev);
406 show_boot_progress (-44);
407 return 1;
408 }
409 show_boot_progress (44);
410
411 if (*ep) {
412 if (*ep != ':') {
413 puts ("\n** Invalid boot device, use `dev[:part]' **\n");
414 show_boot_progress (-45);
415 return 1;
416 }
417 part = simple_strtoul(++ep, NULL, 16);
418 }
419 show_boot_progress (45);
420 if (get_partition_info (&ide_dev_desc[dev], part, &info)) {
421 show_boot_progress (-46);
422 return 1;
423 }
424 show_boot_progress (46);
425 if ((strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
426 (strncmp((char *)info.type, BOOT_PART_COMP, sizeof(info.type)) != 0)) {
427 printf ("\n** Invalid partition type \"%.32s\""
428 " (expect \"" BOOT_PART_TYPE "\")\n",
429 info.type);
430 show_boot_progress (-47);
431 return 1;
432 }
433 show_boot_progress (47);
434
435 printf ("\nLoading from IDE device %d, partition %d: "
436 "Name: %.32s Type: %.32s\n",
437 dev, part, info.name, info.type);
438
439 debug ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n",
440 info.start, info.size, info.blksz);
441
442 if (ide_dev_desc[dev].block_read (dev, info.start, 1, (ulong *)addr) != 1) {
443 printf ("** Read error on %d:%d\n", dev, part);
444 show_boot_progress (-48);
445 return 1;
446 }
447 show_boot_progress (48);
448
449 hdr = (image_header_t *)addr;
450
451 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
452 printf("\n** Bad Magic Number **\n");
453 show_boot_progress (-49);
454 return 1;
455 }
456 show_boot_progress (49);
457
458 checksum = ntohl(hdr->ih_hcrc);
459 hdr->ih_hcrc = 0;
460
461 if (crc32 (0, (uchar *)hdr, sizeof(image_header_t)) != checksum) {
462 puts ("\n** Bad Header Checksum **\n");
463 show_boot_progress (-50);
464 return 1;
465 }
466 show_boot_progress (50);
467 hdr->ih_hcrc = htonl(checksum); /* restore checksum for later use */
468
469 print_image_hdr (hdr);
470
471 cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
472 cnt += info.blksz - 1;
473 cnt /= info.blksz;
474 cnt -= 1;
475
476 if (ide_dev_desc[dev].block_read (dev, info.start+1, cnt,
477 (ulong *)(addr+info.blksz)) != cnt) {
478 printf ("** Read error on %d:%d\n", dev, part);
479 show_boot_progress (-51);
480 return 1;
481 }
482 show_boot_progress (51);
483
484
485 /* Loading ok, update default load address */
486
487 load_addr = addr;
488
489 /* Check if we should attempt an auto-start */
490 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
491 char *local_args[2];
492 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
493
494 local_args[0] = argv[0];
495 local_args[1] = NULL;
496
497 printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
498
499 do_bootm (cmdtp, 0, 1, local_args);
500 rcode = 1;
501 }
502 return rcode;
503 }
504
505 /* ------------------------------------------------------------------------- */
506
507 void ide_init (void)
508 {
509
510 #ifdef CONFIG_IDE_8xx_DIRECT
511 volatile immap_t *immr = (immap_t *)CFG_IMMR;
512 volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
513 #endif
514 unsigned char c;
515 int i, bus;
516 #if defined(CONFIG_AMIGAONEG3SE) || defined(CONFIG_SC3)
517 unsigned int ata_reset_time = ATA_RESET_TIME;
518 char *s;
519 #endif
520 #ifdef CONFIG_AMIGAONEG3SE
521 unsigned int max_bus_scan;
522 #endif
523 #ifdef CONFIG_IDE_8xx_PCCARD
524 extern int pcmcia_on (void);
525 extern int ide_devices_found; /* Initialized in check_ide_device() */
526 #endif /* CONFIG_IDE_8xx_PCCARD */
527
528 #ifdef CONFIG_IDE_PREINIT
529 extern int ide_preinit (void);
530 WATCHDOG_RESET();
531
532 if (ide_preinit ()) {
533 puts ("ide_preinit failed\n");
534 return;
535 }
536 #endif /* CONFIG_IDE_PREINIT */
537
538 #ifdef CONFIG_IDE_8xx_PCCARD
539 extern int pcmcia_on (void);
540 extern int ide_devices_found; /* Initialized in check_ide_device() */
541
542 WATCHDOG_RESET();
543
544 ide_devices_found = 0;
545 /* initialize the PCMCIA IDE adapter card */
546 pcmcia_on();
547 if (!ide_devices_found)
548 return;
549 udelay (1000000); /* 1 s */
550 #endif /* CONFIG_IDE_8xx_PCCARD */
551
552 WATCHDOG_RESET();
553
554 #ifdef CONFIG_IDE_8xx_DIRECT
555 /* Initialize PIO timing tables */
556 for (i=0; i <= IDE_MAX_PIO_MODE; ++i) {
557 pio_config_clk[i].t_setup = PCMCIA_MK_CLKS(pio_config_ns[i].t_setup,
558 gd->bus_clk);
559 pio_config_clk[i].t_length = PCMCIA_MK_CLKS(pio_config_ns[i].t_length,
560 gd->bus_clk);
561 pio_config_clk[i].t_hold = PCMCIA_MK_CLKS(pio_config_ns[i].t_hold,
562 gd->bus_clk);
563 debug ( "PIO Mode %d: setup=%2d ns/%d clk"
564 " len=%3d ns/%d clk"
565 " hold=%2d ns/%d clk\n",
566 i,
567 pio_config_ns[i].t_setup, pio_config_clk[i].t_setup,
568 pio_config_ns[i].t_length, pio_config_clk[i].t_length,
569 pio_config_ns[i].t_hold, pio_config_clk[i].t_hold);
570 }
571 #endif /* CONFIG_IDE_8xx_DIRECT */
572
573 /* Reset the IDE just to be sure.
574 * Light LED's to show
575 */
576 ide_led ((LED_IDE1 | LED_IDE2), 1); /* LED's on */
577 ide_reset (); /* ATAPI Drives seems to need a proper IDE Reset */
578
579 #ifdef CONFIG_IDE_8xx_DIRECT
580 /* PCMCIA / IDE initialization for common mem space */
581 pcmp->pcmc_pgcrb = 0;
582
583 /* start in PIO mode 0 - most relaxed timings */
584 pio_mode = 0;
585 set_pcmcia_timing (pio_mode);
586 #endif /* CONFIG_IDE_8xx_DIRECT */
587
588 /*
589 * Wait for IDE to get ready.
590 * According to spec, this can take up to 31 seconds!
591 */
592 #ifndef CONFIG_AMIGAONEG3SE
593 for (bus=0; bus<CFG_IDE_MAXBUS; ++bus) {
594 int dev = bus * (CFG_IDE_MAXDEVICE / CFG_IDE_MAXBUS);
595 #else
596 s = getenv("ide_maxbus");
597 if (s)
598 max_bus_scan = simple_strtol(s, NULL, 10);
599 else
600 max_bus_scan = CFG_IDE_MAXBUS;
601
602 for (bus=0; bus<max_bus_scan; ++bus) {
603 int dev = bus * (CFG_IDE_MAXDEVICE / max_bus_scan);
604 #endif
605
606 #ifdef CONFIG_IDE_8xx_PCCARD
607 /* Skip non-ide devices from probing */
608 if ((ide_devices_found & (1 << bus)) == 0) {
609 ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
610 continue;
611 }
612 #endif
613 printf ("Bus %d: ", bus);
614
615 ide_bus_ok[bus] = 0;
616
617 /* Select device
618 */
619 udelay (100000); /* 100 ms */
620 ide_outb (dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
621 udelay (100000); /* 100 ms */
622 #if defined(CONFIG_AMIGAONEG3SE) || defined(CONFIG_SC3)
623 if ((s = getenv("ide_reset_timeout")) != NULL)
624 ata_reset_time = simple_strtol(s, NULL, 10);
625 #endif
626 i = 0;
627 do {
628 udelay (10000); /* 10 ms */
629
630 c = ide_inb (dev, ATA_STATUS);
631 i++;
632 #if defined(CONFIG_AMIGAONEG3SE) || defined(CONFIG_SC3)
633 if (i > (ata_reset_time * 100)) {
634 #else
635 if (i > (ATA_RESET_TIME * 100)) {
636 #endif
637 puts ("** Timeout **\n");
638 ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
639 #ifdef CONFIG_AMIGAONEG3SE
640 /* If this is the second bus, the first one was OK */
641 if (bus != 0) {
642 ide_bus_ok[bus] = 0;
643 goto skip_bus;
644 }
645 #endif
646 return;
647 }
648 if ((i >= 100) && ((i%100)==0)) {
649 putc ('.');
650 }
651 } while (c & ATA_STAT_BUSY);
652
653 if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) {
654 puts ("not available ");
655 debug ("Status = 0x%02X ", c);
656 #ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */
657 } else if ((c & ATA_STAT_READY) == 0) {
658 puts ("not available ");
659 debug ("Status = 0x%02X ", c);
660 #endif
661 } else {
662 puts ("OK ");
663 ide_bus_ok[bus] = 1;
664 }
665 WATCHDOG_RESET();
666 }
667
668 #ifdef CONFIG_AMIGAONEG3SE
669 skip_bus:
670 #endif
671 putc ('\n');
672
673 ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
674
675 curr_device = -1;
676 for (i=0; i<CFG_IDE_MAXDEVICE; ++i) {
677 #ifdef CONFIG_IDE_LED
678 int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2;
679 #endif
680 ide_dev_desc[i].type=DEV_TYPE_UNKNOWN;
681 ide_dev_desc[i].if_type=IF_TYPE_IDE;
682 ide_dev_desc[i].dev=i;
683 ide_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
684 ide_dev_desc[i].blksz=0;
685 ide_dev_desc[i].lba=0;
686 ide_dev_desc[i].block_read=ide_read;
687 if (!ide_bus_ok[IDE_BUS(i)])
688 continue;
689 ide_led (led, 1); /* LED on */
690 ide_ident(&ide_dev_desc[i]);
691 ide_led (led, 0); /* LED off */
692 dev_print(&ide_dev_desc[i]);
693 /* ide_print (i); */
694 if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) {
695 init_part (&ide_dev_desc[i]); /* initialize partition type */
696 if (curr_device < 0)
697 curr_device = i;
698 }
699 }
700 WATCHDOG_RESET();
701 }
702
703 /* ------------------------------------------------------------------------- */
704
705 block_dev_desc_t * ide_get_dev(int dev)
706 {
707 return (dev < CFG_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL;
708 }
709
710
711 #ifdef CONFIG_IDE_8xx_DIRECT
712
713 static void
714 set_pcmcia_timing (int pmode)
715 {
716 volatile immap_t *immr = (immap_t *)CFG_IMMR;
717 volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
718 ulong timings;
719
720 debug ("Set timing for PIO Mode %d\n", pmode);
721
722 timings = PCMCIA_SHT(pio_config_clk[pmode].t_hold)
723 | PCMCIA_SST(pio_config_clk[pmode].t_setup)
724 | PCMCIA_SL (pio_config_clk[pmode].t_length)
725 ;
726
727 /* IDE 0
728 */
729 pcmp->pcmc_pbr0 = CFG_PCMCIA_PBR0;
730 pcmp->pcmc_por0 = CFG_PCMCIA_POR0
731 #if (CFG_PCMCIA_POR0 != 0)
732 | timings
733 #endif
734 ;
735 debug ("PBR0: %08x POR0: %08x\n", pcmp->pcmc_pbr0, pcmp->pcmc_por0);
736
737 pcmp->pcmc_pbr1 = CFG_PCMCIA_PBR1;
738 pcmp->pcmc_por1 = CFG_PCMCIA_POR1
739 #if (CFG_PCMCIA_POR1 != 0)
740 | timings
741 #endif
742 ;
743 debug ("PBR1: %08x POR1: %08x\n", pcmp->pcmc_pbr1, pcmp->pcmc_por1);
744
745 pcmp->pcmc_pbr2 = CFG_PCMCIA_PBR2;
746 pcmp->pcmc_por2 = CFG_PCMCIA_POR2
747 #if (CFG_PCMCIA_POR2 != 0)
748 | timings
749 #endif
750 ;
751 debug ("PBR2: %08x POR2: %08x\n", pcmp->pcmc_pbr2, pcmp->pcmc_por2);
752
753 pcmp->pcmc_pbr3 = CFG_PCMCIA_PBR3;
754 pcmp->pcmc_por3 = CFG_PCMCIA_POR3
755 #if (CFG_PCMCIA_POR3 != 0)
756 | timings
757 #endif
758 ;
759 debug ("PBR3: %08x POR3: %08x\n", pcmp->pcmc_pbr3, pcmp->pcmc_por3);
760
761 /* IDE 1
762 */
763 pcmp->pcmc_pbr4 = CFG_PCMCIA_PBR4;
764 pcmp->pcmc_por4 = CFG_PCMCIA_POR4
765 #if (CFG_PCMCIA_POR4 != 0)
766 | timings
767 #endif
768 ;
769 debug ("PBR4: %08x POR4: %08x\n", pcmp->pcmc_pbr4, pcmp->pcmc_por4);
770
771 pcmp->pcmc_pbr5 = CFG_PCMCIA_PBR5;
772 pcmp->pcmc_por5 = CFG_PCMCIA_POR5
773 #if (CFG_PCMCIA_POR5 != 0)
774 | timings
775 #endif
776 ;
777 debug ("PBR5: %08x POR5: %08x\n", pcmp->pcmc_pbr5, pcmp->pcmc_por5);
778
779 pcmp->pcmc_pbr6 = CFG_PCMCIA_PBR6;
780 pcmp->pcmc_por6 = CFG_PCMCIA_POR6
781 #if (CFG_PCMCIA_POR6 != 0)
782 | timings
783 #endif
784 ;
785 debug ("PBR6: %08x POR6: %08x\n", pcmp->pcmc_pbr6, pcmp->pcmc_por6);
786
787 pcmp->pcmc_pbr7 = CFG_PCMCIA_PBR7;
788 pcmp->pcmc_por7 = CFG_PCMCIA_POR7
789 #if (CFG_PCMCIA_POR7 != 0)
790 | timings
791 #endif
792 ;
793 debug ("PBR7: %08x POR7: %08x\n", pcmp->pcmc_pbr7, pcmp->pcmc_por7);
794
795 }
796
797 #endif /* CONFIG_IDE_8xx_DIRECT */
798
799 /* ------------------------------------------------------------------------- */
800
801 void inline
802 __ide_outb(int dev, int port, unsigned char val)
803 {
804 debug ("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
805 dev, port, val, (ATA_CURR_BASE(dev)+CFG_ATA_PORT_ADDR(port)));
806 outb(val, (ATA_CURR_BASE(dev)+CFG_ATA_PORT_ADDR(port)));
807 }
808 void inline ide_outb (int dev, int port, unsigned char val)
809 __attribute__((weak, alias("__ide_outb")));
810
811 unsigned char inline
812 __ide_inb(int dev, int port)
813 {
814 uchar val;
815 val = inb((ATA_CURR_BASE(dev)+CFG_ATA_PORT_ADDR(port)));
816 debug ("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
817 dev, port, (ATA_CURR_BASE(dev)+CFG_ATA_PORT_ADDR(port)), val);
818 return val;
819 }
820 unsigned char inline ide_inb(int dev, int port)
821 __attribute__((weak, alias("__ide_inb")));
822
823 #ifdef __PPC__
824 # ifdef CONFIG_AMIGAONEG3SE
825 static void
826 output_data_short(int dev, ulong *sect_buf, int words)
827 {
828 ushort *dbuf;
829 volatile ushort *pbuf;
830
831 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
832 dbuf = (ushort *)sect_buf;
833 while (words--) {
834 EIEIO;
835 *pbuf = *dbuf++;
836 EIEIO;
837 }
838
839 if (words&1)
840 *pbuf = 0;
841 }
842 # endif /* CONFIG_AMIGAONEG3SE */
843 #endif /* __PPC_ */
844
845 /* We only need to swap data if we are running on a big endian cpu. */
846 /* But Au1x00 cpu:s already swaps data in big endian mode! */
847 #if defined(__LITTLE_ENDIAN) || ( defined(CONFIG_AU1X00) && !defined(CONFIG_GTH2) )
848 #define input_swap_data(x,y,z) input_data(x,y,z)
849 #else
850 static void
851 input_swap_data(int dev, ulong *sect_buf, int words)
852 {
853 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
854 uchar i;
855 volatile uchar *pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
856 volatile uchar *pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
857 ushort *dbuf = (ushort *)sect_buf;
858
859 while (words--) {
860 for (i=0; i<2; i++) {
861 *(((uchar *)(dbuf)) + 1) = *pbuf_even;
862 *(uchar *)dbuf = *pbuf_odd;
863 dbuf+=1;
864 }
865 }
866 #else
867 volatile ushort *pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
868 ushort *dbuf = (ushort *)sect_buf;
869
870 debug("in input swap data base for read is %lx\n", (unsigned long) pbuf);
871
872 while (words--) {
873 #ifdef __MIPS__
874 *dbuf++ = swab16p((u16*)pbuf);
875 *dbuf++ = swab16p((u16*)pbuf);
876 #elif defined(CONFIG_PCS440EP)
877 *dbuf++ = *pbuf;
878 *dbuf++ = *pbuf;
879 #else
880 *dbuf++ = ld_le16(pbuf);
881 *dbuf++ = ld_le16(pbuf);
882 #endif /* !MIPS */
883 }
884 #endif
885 }
886 #endif /* __LITTLE_ENDIAN || CONFIG_AU1X00 */
887
888
889 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) || defined(CONFIG_SH)
890 static void
891 output_data(int dev, ulong *sect_buf, int words)
892 {
893 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
894 uchar *dbuf;
895 volatile uchar *pbuf_even;
896 volatile uchar *pbuf_odd;
897
898 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
899 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
900 dbuf = (uchar *)sect_buf;
901 while (words--) {
902 EIEIO;
903 *pbuf_even = *dbuf++;
904 EIEIO;
905 *pbuf_odd = *dbuf++;
906 EIEIO;
907 *pbuf_even = *dbuf++;
908 EIEIO;
909 *pbuf_odd = *dbuf++;
910 }
911 #else
912 ushort *dbuf;
913 volatile ushort *pbuf;
914
915 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
916 dbuf = (ushort *)sect_buf;
917 while (words--) {
918 #if defined(CONFIG_PCS440EP)
919 /* not tested, because CF was write protected */
920 EIEIO;
921 *pbuf = ld_le16(dbuf++);
922 EIEIO;
923 *pbuf = ld_le16(dbuf++);
924 #else
925 EIEIO;
926 *pbuf = *dbuf++;
927 EIEIO;
928 *pbuf = *dbuf++;
929 #endif
930 }
931 #endif
932 }
933 #else /* ! __PPC__ */
934 static void
935 output_data(int dev, ulong *sect_buf, int words)
936 {
937 outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words<<1);
938 }
939 #endif /* __PPC__ */
940
941 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) || defined(CONFIG_SH)
942 static void
943 input_data(int dev, ulong *sect_buf, int words)
944 {
945 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
946 uchar *dbuf;
947 volatile uchar *pbuf_even;
948 volatile uchar *pbuf_odd;
949
950 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
951 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
952 dbuf = (uchar *)sect_buf;
953 while (words--) {
954 *dbuf++ = *pbuf_even;
955 EIEIO;
956 SYNC;
957 *dbuf++ = *pbuf_odd;
958 EIEIO;
959 SYNC;
960 *dbuf++ = *pbuf_even;
961 EIEIO;
962 SYNC;
963 *dbuf++ = *pbuf_odd;
964 EIEIO;
965 SYNC;
966 }
967 #else
968 ushort *dbuf;
969 volatile ushort *pbuf;
970
971 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
972 dbuf = (ushort *)sect_buf;
973
974 debug("in input data base for read is %lx\n", (unsigned long) pbuf);
975
976 while (words--) {
977 #if defined(CONFIG_PCS440EP)
978 EIEIO;
979 *dbuf++ = ld_le16(pbuf);
980 EIEIO;
981 *dbuf++ = ld_le16(pbuf);
982 #else
983 EIEIO;
984 *dbuf++ = *pbuf;
985 EIEIO;
986 *dbuf++ = *pbuf;
987 #endif
988 }
989 #endif
990 }
991 #else /* ! __PPC__ */
992 static void
993 input_data(int dev, ulong *sect_buf, int words)
994 {
995 insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1);
996 }
997
998 #endif /* __PPC__ */
999
1000 #ifdef CONFIG_AMIGAONEG3SE
1001 static void
1002 input_data_short(int dev, ulong *sect_buf, int words)
1003 {
1004 ushort *dbuf;
1005 volatile ushort *pbuf;
1006
1007 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
1008 dbuf = (ushort *)sect_buf;
1009 while (words--) {
1010 EIEIO;
1011 *dbuf++ = *pbuf;
1012 EIEIO;
1013 }
1014
1015 if (words&1) {
1016 ushort dummy;
1017 dummy = *pbuf;
1018 }
1019 }
1020 #endif
1021
1022 /* -------------------------------------------------------------------------
1023 */
1024 static void ide_ident (block_dev_desc_t *dev_desc)
1025 {
1026 ulong iobuf[ATA_SECTORWORDS];
1027 unsigned char c;
1028 hd_driveid_t *iop = (hd_driveid_t *)iobuf;
1029
1030 #ifdef CONFIG_AMIGAONEG3SE
1031 int max_bus_scan;
1032 char *s;
1033 #endif
1034 #ifdef CONFIG_ATAPI
1035 int retries = 0;
1036 int do_retry = 0;
1037 #endif
1038
1039 #if 0
1040 int mode, cycle_time;
1041 #endif
1042 int device;
1043 device=dev_desc->dev;
1044 printf (" Device %d: ", device);
1045
1046 #ifdef CONFIG_AMIGAONEG3SE
1047 s = getenv("ide_maxbus");
1048 if (s) {
1049 max_bus_scan = simple_strtol(s, NULL, 10);
1050 } else {
1051 max_bus_scan = CFG_IDE_MAXBUS;
1052 }
1053 if (device >= max_bus_scan*2) {
1054 dev_desc->type=DEV_TYPE_UNKNOWN;
1055 return;
1056 }
1057 #endif
1058
1059 ide_led (DEVICE_LED(device), 1); /* LED on */
1060 /* Select device
1061 */
1062 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1063 dev_desc->if_type=IF_TYPE_IDE;
1064 #ifdef CONFIG_ATAPI
1065
1066 do_retry = 0;
1067 retries = 0;
1068
1069 /* Warning: This will be tricky to read */
1070 while (retries <= 1) {
1071 /* check signature */
1072 if ((ide_inb(device,ATA_SECT_CNT) == 0x01) &&
1073 (ide_inb(device,ATA_SECT_NUM) == 0x01) &&
1074 (ide_inb(device,ATA_CYL_LOW) == 0x14) &&
1075 (ide_inb(device,ATA_CYL_HIGH) == 0xEB)) {
1076 /* ATAPI Signature found */
1077 dev_desc->if_type=IF_TYPE_ATAPI;
1078 /* Start Ident Command
1079 */
1080 ide_outb (device, ATA_COMMAND, ATAPI_CMD_IDENT);
1081 /*
1082 * Wait for completion - ATAPI devices need more time
1083 * to become ready
1084 */
1085 c = ide_wait (device, ATAPI_TIME_OUT);
1086 } else
1087 #endif
1088 {
1089 /* Start Ident Command
1090 */
1091 ide_outb (device, ATA_COMMAND, ATA_CMD_IDENT);
1092
1093 /* Wait for completion
1094 */
1095 c = ide_wait (device, IDE_TIME_OUT);
1096 }
1097 ide_led (DEVICE_LED(device), 0); /* LED off */
1098
1099 if (((c & ATA_STAT_DRQ) == 0) ||
1100 ((c & (ATA_STAT_FAULT|ATA_STAT_ERR)) != 0) ) {
1101 #ifdef CONFIG_ATAPI
1102 #ifdef CONFIG_AMIGAONEG3SE
1103 s = getenv("ide_doreset");
1104 if (s && strcmp(s, "on") == 0)
1105 #endif
1106 {
1107 /* Need to soft reset the device in case it's an ATAPI... */
1108 debug ("Retrying...\n");
1109 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1110 udelay(100000);
1111 ide_outb (device, ATA_COMMAND, 0x08);
1112 udelay (500000); /* 500 ms */
1113 }
1114 /* Select device
1115 */
1116 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1117 retries++;
1118 #else
1119 return;
1120 #endif
1121 }
1122 #ifdef CONFIG_ATAPI
1123 else
1124 break;
1125 } /* see above - ugly to read */
1126
1127 if (retries == 2) /* Not found */
1128 return;
1129 #endif
1130
1131 input_swap_data (device, iobuf, ATA_SECTORWORDS);
1132
1133 ident_cpy ((unsigned char*)dev_desc->revision, iop->fw_rev, sizeof(dev_desc->revision));
1134 ident_cpy ((unsigned char*)dev_desc->vendor, iop->model, sizeof(dev_desc->vendor));
1135 ident_cpy ((unsigned char*)dev_desc->product, iop->serial_no, sizeof(dev_desc->product));
1136 #ifdef __LITTLE_ENDIAN
1137 /*
1138 * firmware revision and model number have Big Endian Byte
1139 * order in Word. Convert both to little endian.
1140 *
1141 * See CF+ and CompactFlash Specification Revision 2.0:
1142 * 6.2.1.6: Identfy Drive, Table 39 for more details
1143 */
1144
1145 strswab (dev_desc->revision);
1146 strswab (dev_desc->vendor);
1147 #endif /* __LITTLE_ENDIAN */
1148
1149 if ((iop->config & 0x0080)==0x0080)
1150 dev_desc->removable = 1;
1151 else
1152 dev_desc->removable = 0;
1153
1154 #if 0
1155 /*
1156 * Drive PIO mode autoselection
1157 */
1158 mode = iop->tPIO;
1159
1160 printf ("tPIO = 0x%02x = %d\n",mode, mode);
1161 if (mode > 2) { /* 2 is maximum allowed tPIO value */
1162 mode = 2;
1163 debug ("Override tPIO -> 2\n");
1164 }
1165 if (iop->field_valid & 2) { /* drive implements ATA2? */
1166 debug ("Drive implements ATA2\n");
1167 if (iop->capability & 8) { /* drive supports use_iordy? */
1168 cycle_time = iop->eide_pio_iordy;
1169 } else {
1170 cycle_time = iop->eide_pio;
1171 }
1172 debug ("cycle time = %d\n", cycle_time);
1173 mode = 4;
1174 if (cycle_time > 120) mode = 3; /* 120 ns for PIO mode 4 */
1175 if (cycle_time > 180) mode = 2; /* 180 ns for PIO mode 3 */
1176 if (cycle_time > 240) mode = 1; /* 240 ns for PIO mode 4 */
1177 if (cycle_time > 383) mode = 0; /* 383 ns for PIO mode 4 */
1178 }
1179 printf ("PIO mode to use: PIO %d\n", mode);
1180 #endif /* 0 */
1181
1182 #ifdef CONFIG_ATAPI
1183 if (dev_desc->if_type==IF_TYPE_ATAPI) {
1184 atapi_inquiry(dev_desc);
1185 return;
1186 }
1187 #endif /* CONFIG_ATAPI */
1188
1189 #ifdef __BIG_ENDIAN
1190 /* swap shorts */
1191 dev_desc->lba = (iop->lba_capacity << 16) | (iop->lba_capacity >> 16);
1192 #else /* ! __BIG_ENDIAN */
1193 /*
1194 * do not swap shorts on little endian
1195 *
1196 * See CF+ and CompactFlash Specification Revision 2.0:
1197 * 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
1198 */
1199 dev_desc->lba = iop->lba_capacity;
1200 #endif /* __BIG_ENDIAN */
1201
1202 #ifdef CONFIG_LBA48
1203 if (iop->command_set_2 & 0x0400) { /* LBA 48 support */
1204 dev_desc->lba48 = 1;
1205 dev_desc->lba = (unsigned long long)iop->lba48_capacity[0] |
1206 ((unsigned long long)iop->lba48_capacity[1] << 16) |
1207 ((unsigned long long)iop->lba48_capacity[2] << 32) |
1208 ((unsigned long long)iop->lba48_capacity[3] << 48);
1209 } else {
1210 dev_desc->lba48 = 0;
1211 }
1212 #endif /* CONFIG_LBA48 */
1213 /* assuming HD */
1214 dev_desc->type=DEV_TYPE_HARDDISK;
1215 dev_desc->blksz=ATA_BLOCKSIZE;
1216 dev_desc->lun=0; /* just to fill something in... */
1217
1218 #if 0 /* only used to test the powersaving mode,
1219 * if enabled, the drive goes after 5 sec
1220 * in standby mode */
1221 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1222 c = ide_wait (device, IDE_TIME_OUT);
1223 ide_outb (device, ATA_SECT_CNT, 1);
1224 ide_outb (device, ATA_LBA_LOW, 0);
1225 ide_outb (device, ATA_LBA_MID, 0);
1226 ide_outb (device, ATA_LBA_HIGH, 0);
1227 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1228 ide_outb (device, ATA_COMMAND, 0xe3);
1229 udelay (50);
1230 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1231 #endif
1232 }
1233
1234
1235 /* ------------------------------------------------------------------------- */
1236
1237 ulong ide_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer)
1238 {
1239 ulong n = 0;
1240 unsigned char c;
1241 unsigned char pwrsave=0; /* power save */
1242 #ifdef CONFIG_LBA48
1243 unsigned char lba48 = 0;
1244
1245 if (blknr & 0x0000fffff0000000) {
1246 /* more than 28 bits used, use 48bit mode */
1247 lba48 = 1;
1248 }
1249 #endif
1250 debug ("ide_read dev %d start %qX, blocks %lX buffer at %lX\n",
1251 device, blknr, blkcnt, (ulong)buffer);
1252
1253 ide_led (DEVICE_LED(device), 1); /* LED on */
1254
1255 /* Select device
1256 */
1257 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1258 c = ide_wait (device, IDE_TIME_OUT);
1259
1260 if (c & ATA_STAT_BUSY) {
1261 printf ("IDE read: device %d not ready\n", device);
1262 goto IDE_READ_E;
1263 }
1264
1265 /* first check if the drive is in Powersaving mode, if yes,
1266 * increase the timeout value */
1267 ide_outb (device, ATA_COMMAND, ATA_CMD_CHK_PWR);
1268 udelay (50);
1269
1270 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1271
1272 if (c & ATA_STAT_BUSY) {
1273 printf ("IDE read: device %d not ready\n", device);
1274 goto IDE_READ_E;
1275 }
1276 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
1277 printf ("No Powersaving mode %X\n", c);
1278 } else {
1279 c = ide_inb(device,ATA_SECT_CNT);
1280 debug ("Powersaving %02X\n",c);
1281 if(c==0)
1282 pwrsave=1;
1283 }
1284
1285
1286 while (blkcnt-- > 0) {
1287
1288 c = ide_wait (device, IDE_TIME_OUT);
1289
1290 if (c & ATA_STAT_BUSY) {
1291 printf ("IDE read: device %d not ready\n", device);
1292 break;
1293 }
1294 #ifdef CONFIG_LBA48
1295 if (lba48) {
1296 /* write high bits */
1297 ide_outb (device, ATA_SECT_CNT, 0);
1298 ide_outb (device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
1299 ide_outb (device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
1300 ide_outb (device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
1301 }
1302 #endif
1303 ide_outb (device, ATA_SECT_CNT, 1);
1304 ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
1305 ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
1306 ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
1307
1308 #ifdef CONFIG_LBA48
1309 if (lba48) {
1310 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) );
1311 ide_outb (device, ATA_COMMAND, ATA_CMD_READ_EXT);
1312
1313 } else
1314 #endif
1315 {
1316 ide_outb (device, ATA_DEV_HD, ATA_LBA |
1317 ATA_DEVICE(device) |
1318 ((blknr >> 24) & 0xF) );
1319 ide_outb (device, ATA_COMMAND, ATA_CMD_READ);
1320 }
1321
1322 udelay (50);
1323
1324 if(pwrsave) {
1325 c = ide_wait (device, IDE_SPIN_UP_TIME_OUT); /* may take up to 4 sec */
1326 pwrsave=0;
1327 } else {
1328 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1329 }
1330
1331 if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) {
1332 #if defined(CFG_64BIT_LBA) && defined(CFG_64BIT_VSPRINTF)
1333 printf ("Error (no IRQ) dev %d blk %qd: status 0x%02x\n",
1334 device, blknr, c);
1335 #else
1336 printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n",
1337 device, (ulong)blknr, c);
1338 #endif
1339 break;
1340 }
1341
1342 input_data (device, buffer, ATA_SECTORWORDS);
1343 (void) ide_inb (device, ATA_STATUS); /* clear IRQ */
1344
1345 ++n;
1346 ++blknr;
1347 buffer += ATA_BLOCKSIZE;
1348 }
1349 IDE_READ_E:
1350 ide_led (DEVICE_LED(device), 0); /* LED off */
1351 return (n);
1352 }
1353
1354 /* ------------------------------------------------------------------------- */
1355
1356
1357 ulong ide_write (int device, lbaint_t blknr, ulong blkcnt, void *buffer)
1358 {
1359 ulong n = 0;
1360 unsigned char c;
1361 #ifdef CONFIG_LBA48
1362 unsigned char lba48 = 0;
1363
1364 if (blknr & 0x0000fffff0000000) {
1365 /* more than 28 bits used, use 48bit mode */
1366 lba48 = 1;
1367 }
1368 #endif
1369
1370 ide_led (DEVICE_LED(device), 1); /* LED on */
1371
1372 /* Select device
1373 */
1374 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1375
1376 while (blkcnt-- > 0) {
1377
1378 c = ide_wait (device, IDE_TIME_OUT);
1379
1380 if (c & ATA_STAT_BUSY) {
1381 printf ("IDE read: device %d not ready\n", device);
1382 goto WR_OUT;
1383 }
1384 #ifdef CONFIG_LBA48
1385 if (lba48) {
1386 /* write high bits */
1387 ide_outb (device, ATA_SECT_CNT, 0);
1388 ide_outb (device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
1389 ide_outb (device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
1390 ide_outb (device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
1391 }
1392 #endif
1393 ide_outb (device, ATA_SECT_CNT, 1);
1394 ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
1395 ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
1396 ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
1397
1398 #ifdef CONFIG_LBA48
1399 if (lba48) {
1400 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) );
1401 ide_outb (device, ATA_COMMAND, ATA_CMD_WRITE_EXT);
1402
1403 } else
1404 #endif
1405 {
1406 ide_outb (device, ATA_DEV_HD, ATA_LBA |
1407 ATA_DEVICE(device) |
1408 ((blknr >> 24) & 0xF) );
1409 ide_outb (device, ATA_COMMAND, ATA_CMD_WRITE);
1410 }
1411
1412 udelay (50);
1413
1414 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1415
1416 if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) {
1417 #if defined(CFG_64BIT_LBA) && defined(CFG_64BIT_VSPRINTF)
1418 printf ("Error (no IRQ) dev %d blk %qd: status 0x%02x\n",
1419 device, blknr, c);
1420 #else
1421 printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n",
1422 device, (ulong)blknr, c);
1423 #endif
1424 goto WR_OUT;
1425 }
1426
1427 output_data (device, buffer, ATA_SECTORWORDS);
1428 c = ide_inb (device, ATA_STATUS); /* clear IRQ */
1429 ++n;
1430 ++blknr;
1431 buffer += ATA_BLOCKSIZE;
1432 }
1433 WR_OUT:
1434 ide_led (DEVICE_LED(device), 0); /* LED off */
1435 return (n);
1436 }
1437
1438 /* ------------------------------------------------------------------------- */
1439
1440 /*
1441 * copy src to dest, skipping leading and trailing blanks and null
1442 * terminate the string
1443 * "len" is the size of available memory including the terminating '\0'
1444 */
1445 static void ident_cpy (unsigned char *dst, unsigned char *src, unsigned int len)
1446 {
1447 unsigned char *end, *last;
1448
1449 last = dst;
1450 end = src + len - 1;
1451
1452 /* reserve space for '\0' */
1453 if (len < 2)
1454 goto OUT;
1455
1456 /* skip leading white space */
1457 while ((*src) && (src<end) && (*src==' '))
1458 ++src;
1459
1460 /* copy string, omitting trailing white space */
1461 while ((*src) && (src<end)) {
1462 *dst++ = *src;
1463 if (*src++ != ' ')
1464 last = dst;
1465 }
1466 OUT:
1467 *last = '\0';
1468 }
1469
1470 /* ------------------------------------------------------------------------- */
1471
1472 /*
1473 * Wait until Busy bit is off, or timeout (in ms)
1474 * Return last status
1475 */
1476 static uchar ide_wait (int dev, ulong t)
1477 {
1478 ulong delay = 10 * t; /* poll every 100 us */
1479 uchar c;
1480
1481 while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
1482 udelay (100);
1483 if (delay-- == 0) {
1484 break;
1485 }
1486 }
1487 return (c);
1488 }
1489
1490 /* ------------------------------------------------------------------------- */
1491
1492 #ifdef CONFIG_IDE_RESET
1493 extern void ide_set_reset(int idereset);
1494
1495 static void ide_reset (void)
1496 {
1497 #if defined(CFG_PB_12V_ENABLE) || defined(CFG_PB_IDE_MOTOR)
1498 volatile immap_t *immr = (immap_t *)CFG_IMMR;
1499 #endif
1500 int i;
1501
1502 curr_device = -1;
1503 for (i=0; i<CFG_IDE_MAXBUS; ++i)
1504 ide_bus_ok[i] = 0;
1505 for (i=0; i<CFG_IDE_MAXDEVICE; ++i)
1506 ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
1507
1508 ide_set_reset (1); /* assert reset */
1509
1510 WATCHDOG_RESET();
1511
1512 #ifdef CFG_PB_12V_ENABLE
1513 immr->im_cpm.cp_pbdat &= ~(CFG_PB_12V_ENABLE); /* 12V Enable output OFF */
1514 immr->im_cpm.cp_pbpar &= ~(CFG_PB_12V_ENABLE);
1515 immr->im_cpm.cp_pbodr &= ~(CFG_PB_12V_ENABLE);
1516 immr->im_cpm.cp_pbdir |= CFG_PB_12V_ENABLE;
1517
1518 /* wait 500 ms for the voltage to stabilize
1519 */
1520 for (i=0; i<500; ++i) {
1521 udelay (1000);
1522 }
1523
1524 immr->im_cpm.cp_pbdat |= CFG_PB_12V_ENABLE; /* 12V Enable output ON */
1525 #endif /* CFG_PB_12V_ENABLE */
1526
1527 #ifdef CFG_PB_IDE_MOTOR
1528 /* configure IDE Motor voltage monitor pin as input */
1529 immr->im_cpm.cp_pbpar &= ~(CFG_PB_IDE_MOTOR);
1530 immr->im_cpm.cp_pbodr &= ~(CFG_PB_IDE_MOTOR);
1531 immr->im_cpm.cp_pbdir &= ~(CFG_PB_IDE_MOTOR);
1532
1533 /* wait up to 1 s for the motor voltage to stabilize
1534 */
1535 for (i=0; i<1000; ++i) {
1536 if ((immr->im_cpm.cp_pbdat & CFG_PB_IDE_MOTOR) != 0) {
1537 break;
1538 }
1539 udelay (1000);
1540 }
1541
1542 if (i == 1000) { /* Timeout */
1543 printf ("\nWarning: 5V for IDE Motor missing\n");
1544 # ifdef CONFIG_STATUS_LED
1545 # ifdef STATUS_LED_YELLOW
1546 status_led_set (STATUS_LED_YELLOW, STATUS_LED_ON );
1547 # endif
1548 # ifdef STATUS_LED_GREEN
1549 status_led_set (STATUS_LED_GREEN, STATUS_LED_OFF);
1550 # endif
1551 # endif /* CONFIG_STATUS_LED */
1552 }
1553 #endif /* CFG_PB_IDE_MOTOR */
1554
1555 WATCHDOG_RESET();
1556
1557 /* de-assert RESET signal */
1558 ide_set_reset(0);
1559
1560 /* wait 250 ms */
1561 for (i=0; i<250; ++i) {
1562 udelay (1000);
1563 }
1564 }
1565
1566 #endif /* CONFIG_IDE_RESET */
1567
1568 /* ------------------------------------------------------------------------- */
1569
1570 #if defined(CONFIG_IDE_LED) && \
1571 !defined(CONFIG_AMIGAONEG3SE)&& \
1572 !defined(CONFIG_CPC45) && \
1573 !defined(CONFIG_HMI10) && \
1574 !defined(CONFIG_KUP4K) && \
1575 !defined(CONFIG_KUP4X)
1576
1577 static uchar led_buffer = 0; /* Buffer for current LED status */
1578
1579 static void ide_led (uchar led, uchar status)
1580 {
1581 uchar *led_port = LED_PORT;
1582
1583 if (status) { /* switch LED on */
1584 led_buffer |= led;
1585 } else { /* switch LED off */
1586 led_buffer &= ~led;
1587 }
1588
1589 *led_port = led_buffer;
1590 }
1591
1592 #endif /* CONFIG_IDE_LED */
1593
1594 /* ------------------------------------------------------------------------- */
1595
1596 #ifdef CONFIG_ATAPI
1597 /****************************************************************************
1598 * ATAPI Support
1599 */
1600
1601 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
1602 /* since ATAPI may use commands with not 4 bytes alligned length
1603 * we have our own transfer functions, 2 bytes alligned */
1604 static void
1605 output_data_shorts(int dev, ushort *sect_buf, int shorts)
1606 {
1607 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
1608 uchar *dbuf;
1609 volatile uchar *pbuf_even;
1610 volatile uchar *pbuf_odd;
1611
1612 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
1613 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
1614 while (shorts--) {
1615 EIEIO;
1616 *pbuf_even = *dbuf++;
1617 EIEIO;
1618 *pbuf_odd = *dbuf++;
1619 }
1620 #else
1621 ushort *dbuf;
1622 volatile ushort *pbuf;
1623
1624 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
1625 dbuf = (ushort *)sect_buf;
1626
1627 debug ("in output data shorts base for read is %lx\n", (unsigned long) pbuf);
1628
1629 while (shorts--) {
1630 EIEIO;
1631 *pbuf = *dbuf++;
1632 }
1633 #endif
1634 }
1635
1636 static void
1637 input_data_shorts(int dev, ushort *sect_buf, int shorts)
1638 {
1639 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
1640 uchar *dbuf;
1641 volatile uchar *pbuf_even;
1642 volatile uchar *pbuf_odd;
1643
1644 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
1645 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
1646 while (shorts--) {
1647 EIEIO;
1648 *dbuf++ = *pbuf_even;
1649 EIEIO;
1650 *dbuf++ = *pbuf_odd;
1651 }
1652 #else
1653 ushort *dbuf;
1654 volatile ushort *pbuf;
1655
1656 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
1657 dbuf = (ushort *)sect_buf;
1658
1659 debug("in input data shorts base for read is %lx\n", (unsigned long) pbuf);
1660
1661 while (shorts--) {
1662 EIEIO;
1663 *dbuf++ = *pbuf;
1664 }
1665 #endif
1666 }
1667
1668 #else /* ! __PPC__ */
1669 static void
1670 output_data_shorts(int dev, ushort *sect_buf, int shorts)
1671 {
1672 outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
1673 }
1674
1675 static void
1676 input_data_shorts(int dev, ushort *sect_buf, int shorts)
1677 {
1678 insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
1679 }
1680
1681 #endif /* __PPC__ */
1682
1683 /*
1684 * Wait until (Status & mask) == res, or timeout (in ms)
1685 * Return last status
1686 * This is used since some ATAPI CD ROMs clears their Busy Bit first
1687 * and then they set their DRQ Bit
1688 */
1689 static uchar atapi_wait_mask (int dev, ulong t,uchar mask, uchar res)
1690 {
1691 ulong delay = 10 * t; /* poll every 100 us */
1692 uchar c;
1693
1694 c = ide_inb(dev,ATA_DEV_CTL); /* prevents to read the status before valid */
1695 while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) {
1696 /* break if error occurs (doesn't make sense to wait more) */
1697 if((c & ATA_STAT_ERR)==ATA_STAT_ERR)
1698 break;
1699 udelay (100);
1700 if (delay-- == 0) {
1701 break;
1702 }
1703 }
1704 return (c);
1705 }
1706
1707 /*
1708 * issue an atapi command
1709 */
1710 unsigned char atapi_issue(int device,unsigned char* ccb,int ccblen, unsigned char * buffer,int buflen)
1711 {
1712 unsigned char c,err,mask,res;
1713 int n;
1714 ide_led (DEVICE_LED(device), 1); /* LED on */
1715
1716 /* Select device
1717 */
1718 mask = ATA_STAT_BUSY|ATA_STAT_DRQ;
1719 res = 0;
1720 #ifdef CONFIG_AMIGAONEG3SE
1721 # warning THF: Removed LBA mode ???
1722 #endif
1723 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1724 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1725 if ((c & mask) != res) {
1726 printf ("ATAPI_ISSUE: device %d not ready status %X\n", device,c);
1727 err=0xFF;
1728 goto AI_OUT;
1729 }
1730 /* write taskfile */
1731 ide_outb (device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */
1732 ide_outb (device, ATA_SECT_CNT, 0);
1733 ide_outb (device, ATA_SECT_NUM, 0);
1734 ide_outb (device, ATA_CYL_LOW, (unsigned char)(buflen & 0xFF));
1735 ide_outb (device, ATA_CYL_HIGH, (unsigned char)((buflen>>8) & 0xFF));
1736 #ifdef CONFIG_AMIGAONEG3SE
1737 # warning THF: Removed LBA mode ???
1738 #endif
1739 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1740
1741 ide_outb (device, ATA_COMMAND, ATAPI_CMD_PACKET);
1742 udelay (50);
1743
1744 mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR;
1745 res = ATA_STAT_DRQ;
1746 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1747
1748 if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */
1749 printf ("ATTAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n",device,c);
1750 err=0xFF;
1751 goto AI_OUT;
1752 }
1753
1754 output_data_shorts (device, (unsigned short *)ccb,ccblen/2); /* write command block */
1755 /* ATAPI Command written wait for completition */
1756 udelay (5000); /* device must set bsy */
1757
1758 mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR;
1759 /* if no data wait for DRQ = 0 BSY = 0
1760 * if data wait for DRQ = 1 BSY = 0 */
1761 res=0;
1762 if(buflen)
1763 res = ATA_STAT_DRQ;
1764 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1765 if ((c & mask) != res ) {
1766 if (c & ATA_STAT_ERR) {
1767 err=(ide_inb(device,ATA_ERROR_REG))>>4;
1768 debug ("atapi_issue 1 returned sense key %X status %02X\n",err,c);
1769 } else {
1770 printf ("ATTAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n", ccb[0],c);
1771 err=0xFF;
1772 }
1773 goto AI_OUT;
1774 }
1775 n=ide_inb(device, ATA_CYL_HIGH);
1776 n<<=8;
1777 n+=ide_inb(device, ATA_CYL_LOW);
1778 if(n>buflen) {
1779 printf("ERROR, transfer bytes %d requested only %d\n",n,buflen);
1780 err=0xff;
1781 goto AI_OUT;
1782 }
1783 if((n==0)&&(buflen<0)) {
1784 printf("ERROR, transfer bytes %d requested %d\n",n,buflen);
1785 err=0xff;
1786 goto AI_OUT;
1787 }
1788 if(n!=buflen) {
1789 debug ("WARNING, transfer bytes %d not equal with requested %d\n",n,buflen);
1790 }
1791 if(n!=0) { /* data transfer */
1792 debug ("ATAPI_ISSUE: %d Bytes to transfer\n",n);
1793 /* we transfer shorts */
1794 n>>=1;
1795 /* ok now decide if it is an in or output */
1796 if ((ide_inb(device, ATA_SECT_CNT)&0x02)==0) {
1797 debug ("Write to device\n");
1798 output_data_shorts(device,(unsigned short *)buffer,n);
1799 } else {
1800 debug ("Read from device @ %p shorts %d\n",buffer,n);
1801 input_data_shorts(device,(unsigned short *)buffer,n);
1802 }
1803 }
1804 udelay(5000); /* seems that some CD ROMs need this... */
1805 mask = ATA_STAT_BUSY|ATA_STAT_ERR;
1806 res=0;
1807 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1808 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
1809 err=(ide_inb(device,ATA_ERROR_REG) >> 4);
1810 debug ("atapi_issue 2 returned sense key %X status %X\n",err,c);
1811 } else {
1812 err = 0;
1813 }
1814 AI_OUT:
1815 ide_led (DEVICE_LED(device), 0); /* LED off */
1816 return (err);
1817 }
1818
1819 /*
1820 * sending the command to atapi_issue. If an status other than good
1821 * returns, an request_sense will be issued
1822 */
1823
1824 #define ATAPI_DRIVE_NOT_READY 100
1825 #define ATAPI_UNIT_ATTN 10
1826
1827 unsigned char atapi_issue_autoreq (int device,
1828 unsigned char* ccb,
1829 int ccblen,
1830 unsigned char *buffer,
1831 int buflen)
1832 {
1833 unsigned char sense_data[18],sense_ccb[12];
1834 unsigned char res,key,asc,ascq;
1835 int notready,unitattn;
1836
1837 #ifdef CONFIG_AMIGAONEG3SE
1838 char *s;
1839 unsigned int timeout, retrycnt;
1840
1841 s = getenv("ide_cd_timeout");
1842 timeout = s ? (simple_strtol(s, NULL, 10)*1000000)/5 : 0;
1843
1844 retrycnt = 0;
1845 #endif
1846
1847 unitattn=ATAPI_UNIT_ATTN;
1848 notready=ATAPI_DRIVE_NOT_READY;
1849
1850 retry:
1851 res= atapi_issue(device,ccb,ccblen,buffer,buflen);
1852 if (res==0)
1853 return (0); /* Ok */
1854
1855 if (res==0xFF)
1856 return (0xFF); /* error */
1857
1858 debug ("(auto_req)atapi_issue returned sense key %X\n",res);
1859
1860 memset(sense_ccb,0,sizeof(sense_ccb));
1861 memset(sense_data,0,sizeof(sense_data));
1862 sense_ccb[0]=ATAPI_CMD_REQ_SENSE;
1863 sense_ccb[4]=18; /* allocation Length */
1864
1865 res=atapi_issue(device,sense_ccb,12,sense_data,18);
1866 key=(sense_data[2]&0xF);
1867 asc=(sense_data[12]);
1868 ascq=(sense_data[13]);
1869
1870 debug ("ATAPI_CMD_REQ_SENSE returned %x\n",res);
1871 debug (" Sense page: %02X key %02X ASC %02X ASCQ %02X\n",
1872 sense_data[0],
1873 key,
1874 asc,
1875 ascq);
1876
1877 if((key==0))
1878 return 0; /* ok device ready */
1879
1880 if((key==6)|| (asc==0x29) || (asc==0x28)) { /* Unit Attention */
1881 if(unitattn-->0) {
1882 udelay(200*1000);
1883 goto retry;
1884 }
1885 printf("Unit Attention, tried %d\n",ATAPI_UNIT_ATTN);
1886 goto error;
1887 }
1888 if((asc==0x4) && (ascq==0x1)) { /* not ready, but will be ready soon */
1889 if (notready-->0) {
1890 udelay(200*1000);
1891 goto retry;
1892 }
1893 printf("Drive not ready, tried %d times\n",ATAPI_DRIVE_NOT_READY);
1894 goto error;
1895 }
1896 if(asc==0x3a) {
1897 debug ("Media not present\n");
1898 goto error;
1899 }
1900
1901 #ifdef CONFIG_AMIGAONEG3SE
1902 if ((sense_data[2]&0xF)==0x0B) {
1903 debug ("ABORTED COMMAND...retry\n");
1904 if (retrycnt++ < 4)
1905 goto retry;
1906 return (0xFF);
1907 }
1908
1909 if ((sense_data[2]&0xf) == 0x02 &&
1910 sense_data[12] == 0x04 &&
1911 sense_data[13] == 0x01 ) {
1912 debug ("Waiting for unit to become active\n");
1913 udelay(timeout);
1914 if (retrycnt++ < 4)
1915 goto retry;
1916 return 0xFF;
1917 }
1918 #endif /* CONFIG_AMIGAONEG3SE */
1919
1920 printf ("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq);
1921 error:
1922 debug ("ERROR Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq);
1923 return (0xFF);
1924 }
1925
1926
1927 static void atapi_inquiry(block_dev_desc_t * dev_desc)
1928 {
1929 unsigned char ccb[12]; /* Command descriptor block */
1930 unsigned char iobuf[64]; /* temp buf */
1931 unsigned char c;
1932 int device;
1933
1934 device=dev_desc->dev;
1935 dev_desc->type=DEV_TYPE_UNKNOWN; /* not yet valid */
1936 dev_desc->block_read=atapi_read;
1937
1938 memset(ccb,0,sizeof(ccb));
1939 memset(iobuf,0,sizeof(iobuf));
1940
1941 ccb[0]=ATAPI_CMD_INQUIRY;
1942 ccb[4]=40; /* allocation Legnth */
1943 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,40);
1944
1945 debug ("ATAPI_CMD_INQUIRY returned %x\n",c);
1946 if (c!=0)
1947 return;
1948
1949 /* copy device ident strings */
1950 ident_cpy((unsigned char*)dev_desc->vendor,&iobuf[8],8);
1951 ident_cpy((unsigned char*)dev_desc->product,&iobuf[16],16);
1952 ident_cpy((unsigned char*)dev_desc->revision,&iobuf[32],5);
1953
1954 dev_desc->lun=0;
1955 dev_desc->lba=0;
1956 dev_desc->blksz=0;
1957 dev_desc->type=iobuf[0] & 0x1f;
1958
1959 if ((iobuf[1]&0x80)==0x80)
1960 dev_desc->removable = 1;
1961 else
1962 dev_desc->removable = 0;
1963
1964 memset(ccb,0,sizeof(ccb));
1965 memset(iobuf,0,sizeof(iobuf));
1966 ccb[0]=ATAPI_CMD_START_STOP;
1967 ccb[4]=0x03; /* start */
1968
1969 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0);
1970
1971 debug ("ATAPI_CMD_START_STOP returned %x\n",c);
1972 if (c!=0)
1973 return;
1974
1975 memset(ccb,0,sizeof(ccb));
1976 memset(iobuf,0,sizeof(iobuf));
1977 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0);
1978
1979 debug ("ATAPI_CMD_UNIT_TEST_READY returned %x\n",c);
1980 if (c!=0)
1981 return;
1982
1983 memset(ccb,0,sizeof(ccb));
1984 memset(iobuf,0,sizeof(iobuf));
1985 ccb[0]=ATAPI_CMD_READ_CAP;
1986 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,8);
1987 debug ("ATAPI_CMD_READ_CAP returned %x\n",c);
1988 if (c!=0)
1989 return;
1990
1991 debug ("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n",
1992 iobuf[0],iobuf[1],iobuf[2],iobuf[3],
1993 iobuf[4],iobuf[5],iobuf[6],iobuf[7]);
1994
1995 dev_desc->lba =((unsigned long)iobuf[0]<<24) +
1996 ((unsigned long)iobuf[1]<<16) +
1997 ((unsigned long)iobuf[2]<< 8) +
1998 ((unsigned long)iobuf[3]);
1999 dev_desc->blksz=((unsigned long)iobuf[4]<<24) +
2000 ((unsigned long)iobuf[5]<<16) +
2001 ((unsigned long)iobuf[6]<< 8) +
2002 ((unsigned long)iobuf[7]);
2003 #ifdef CONFIG_LBA48
2004 dev_desc->lba48 = 0; /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */
2005 #endif
2006 return;
2007 }
2008
2009
2010 /*
2011 * atapi_read:
2012 * we transfer only one block per command, since the multiple DRQ per
2013 * command is not yet implemented
2014 */
2015 #define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */
2016 #define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */
2017 #define ATAPI_READ_MAX_BLOCK ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE /* max blocks */
2018
2019 ulong atapi_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer)
2020 {
2021 ulong n = 0;
2022 unsigned char ccb[12]; /* Command descriptor block */
2023 ulong cnt;
2024
2025 debug ("atapi_read dev %d start %lX, blocks %lX buffer at %lX\n",
2026 device, blknr, blkcnt, (ulong)buffer);
2027
2028 do {
2029 if (blkcnt>ATAPI_READ_MAX_BLOCK) {
2030 cnt=ATAPI_READ_MAX_BLOCK;
2031 } else {
2032 cnt=blkcnt;
2033 }
2034 ccb[0]=ATAPI_CMD_READ_12;
2035 ccb[1]=0; /* reserved */
2036 ccb[2]=(unsigned char) (blknr>>24) & 0xFF; /* MSB Block */
2037 ccb[3]=(unsigned char) (blknr>>16) & 0xFF; /* */
2038 ccb[4]=(unsigned char) (blknr>> 8) & 0xFF;
2039 ccb[5]=(unsigned char) blknr & 0xFF; /* LSB Block */
2040 ccb[6]=(unsigned char) (cnt >>24) & 0xFF; /* MSB Block count */
2041 ccb[7]=(unsigned char) (cnt >>16) & 0xFF;
2042 ccb[8]=(unsigned char) (cnt >> 8) & 0xFF;
2043 ccb[9]=(unsigned char) cnt & 0xFF; /* LSB Block */
2044 ccb[10]=0; /* reserved */
2045 ccb[11]=0; /* reserved */
2046
2047 if (atapi_issue_autoreq(device,ccb,12,
2048 (unsigned char *)buffer,
2049 cnt*ATAPI_READ_BLOCK_SIZE) == 0xFF) {
2050 return (n);
2051 }
2052 n+=cnt;
2053 blkcnt-=cnt;
2054 blknr+=cnt;
2055 buffer+=(cnt*ATAPI_READ_BLOCK_SIZE);
2056 } while (blkcnt > 0);
2057 return (n);
2058 }
2059
2060 /* ------------------------------------------------------------------------- */
2061
2062 #endif /* CONFIG_ATAPI */
2063
2064 U_BOOT_CMD(
2065 ide, 5, 1, do_ide,
2066 "ide - IDE sub-system\n",
2067 "reset - reset IDE controller\n"
2068 "ide info - show available IDE devices\n"
2069 "ide device [dev] - show or set current device\n"
2070 "ide part [dev] - print partition table of one or all IDE devices\n"
2071 "ide read addr blk# cnt\n"
2072 "ide write addr blk# cnt - read/write `cnt'"
2073 " blocks starting at block `blk#'\n"
2074 " to/from memory address `addr'\n"
2075 );
2076
2077 U_BOOT_CMD(
2078 diskboot, 3, 1, do_diskboot,
2079 "diskboot- boot from IDE device\n",
2080 "loadAddr dev:part\n"
2081 );
"Das U-Boot" Source Tree