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to make u-boot work for fat32 filesystem
[jz_uboot.git] / common / cmd_ide.c
bloba4155029a7b8ddb7755619056af7c5c29a1e0ef7
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 #if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA)
35 # include <pcmcia.h>
36 #endif
37 #ifdef CONFIG_8xx
38 # include <mpc8xx.h>
39 #endif
40 #ifdef CONFIG_MPC5xxx
41 #include <mpc5xxx.h>
42 #endif
43 #include <ide.h>
44 #include <ata.h>
45 #ifdef CONFIG_STATUS_LED
46 # include <status_led.h>
47 #endif
48 #ifndef __PPC__
49 #include <asm/io.h>
50 #ifdef __MIPS__
51 /* Macros depend on this variable */
52 unsigned long mips_io_port_base = 0;
53 #endif
54 #endif
55
56 #ifdef CONFIG_SHOW_BOOT_PROGRESS
57 # include <status_led.h>
58 # define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
59 #else
60 # define SHOW_BOOT_PROGRESS(arg)
61 #endif
62
63 #ifdef CONFIG_IDE_8xx_DIRECT
64 DECLARE_GLOBAL_DATA_PTR;
65 #endif
66
67 #ifdef __PPC__
68 # define EIEIO __asm__ volatile ("eieio")
69 # define SYNC __asm__ volatile ("sync")
70 #else
71 # define EIEIO /* nothing */
72 # define SYNC /* nothing */
73 #endif
74
75 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
76
77 #ifdef CONFIG_IDE_8xx_DIRECT
78 /* Timings for IDE Interface
79 *
80 * SETUP / LENGTH / HOLD - cycles valid for 50 MHz clk
81 * 70 165 30 PIO-Mode 0, [ns]
82 * 4 9 2 [Cycles]
83 * 50 125 20 PIO-Mode 1, [ns]
84 * 3 7 2 [Cycles]
85 * 30 100 15 PIO-Mode 2, [ns]
86 * 2 6 1 [Cycles]
87 * 30 80 10 PIO-Mode 3, [ns]
88 * 2 5 1 [Cycles]
89 * 25 70 10 PIO-Mode 4, [ns]
90 * 2 4 1 [Cycles]
91 */
92
93 const static pio_config_t pio_config_ns [IDE_MAX_PIO_MODE+1] =
94 {
95 /* Setup Length Hold */
96 { 70, 165, 30 }, /* PIO-Mode 0, [ns] */
97 { 50, 125, 20 }, /* PIO-Mode 1, [ns] */
98 { 30, 101, 15 }, /* PIO-Mode 2, [ns] */
99 { 30, 80, 10 }, /* PIO-Mode 3, [ns] */
100 { 25, 70, 10 }, /* PIO-Mode 4, [ns] */
101 };
102
103 static pio_config_t pio_config_clk [IDE_MAX_PIO_MODE+1];
104
105 #ifndef CFG_PIO_MODE
106 #define CFG_PIO_MODE 0 /* use a relaxed default */
107 #endif
108 static int pio_mode = CFG_PIO_MODE;
109
110 /* Make clock cycles and always round up */
111
112 #define PCMCIA_MK_CLKS( t, T ) (( (t) * (T) + 999U ) / 1000U )
113
114 #endif /* CONFIG_IDE_8xx_DIRECT */
115
116 /* ------------------------------------------------------------------------- */
117
118 /* Current I/O Device */
119 static int curr_device = -1;
120
121 /* Current offset for IDE0 / IDE1 bus access */
122 ulong ide_bus_offset[CFG_IDE_MAXBUS] = {
123 #if defined(CFG_ATA_IDE0_OFFSET)
124 CFG_ATA_IDE0_OFFSET,
125 #endif
126 #if defined(CFG_ATA_IDE1_OFFSET) && (CFG_IDE_MAXBUS > 1)
127 CFG_ATA_IDE1_OFFSET,
128 #endif
129 };
130
131
132 #define ATA_CURR_BASE(dev) (CFG_ATA_BASE_ADDR+ide_bus_offset[IDE_BUS(dev)])
133
134 #ifndef CONFIG_AMIGAONEG3SE
135 static int ide_bus_ok[CFG_IDE_MAXBUS];
136 #else
137 static int ide_bus_ok[CFG_IDE_MAXBUS] = {0,};
138 #endif
139
140 block_dev_desc_t ide_dev_desc[CFG_IDE_MAXDEVICE];
141 /* ------------------------------------------------------------------------- */
142
143 #ifdef CONFIG_IDE_LED
144 #if !defined(CONFIG_KUP4K) && !defined(CONFIG_KUP4X) &&!defined(CONFIG_BMS2003) &&!defined(CONFIG_CPC45)
145 static void ide_led (uchar led, uchar status);
146 #else
147 extern void ide_led (uchar led, uchar status);
148 #endif
149 #else
150 #ifndef CONFIG_AMIGAONEG3SE
151 #define ide_led(a,b) /* dummy */
152 #else
153 extern void ide_led(uchar led, uchar status);
154 #define LED_IDE1 1
155 #define LED_IDE2 2
156 #define CONFIG_IDE_LED 1
157 #define DEVICE_LED(x) 1
158 #endif
159 #endif
160
161 #ifdef CONFIG_IDE_RESET
162 static void ide_reset (void);
163 #else
164 #define ide_reset() /* dummy */
165 #endif
166
167 static void ide_ident (block_dev_desc_t *dev_desc);
168 static uchar ide_wait (int dev, ulong t);
169
170 #define IDE_TIME_OUT 2000 /* 2 sec timeout */
171
172 #define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */
173
174 #define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */
175
176 static void __inline__ ide_outb(int dev, int port, unsigned char val);
177 static unsigned char __inline__ ide_inb(int dev, int port);
178 static void input_data(int dev, ulong *sect_buf, int words);
179 static void output_data(int dev, ulong *sect_buf, int words);
180 static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
181
182
183 #ifdef CONFIG_ATAPI
184 static void atapi_inquiry(block_dev_desc_t *dev_desc);
185 ulong atapi_read (int device, lbaint_t blknr, ulong blkcnt, ulong *buffer);
186 #endif
187
188
189 #ifdef CONFIG_IDE_8xx_DIRECT
190 static void set_pcmcia_timing (int pmode);
191 #endif
192
193 /* ------------------------------------------------------------------------- */
194
195 int do_ide (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
196 {
197 int rcode = 0;
198
199 switch (argc) {
200 case 0:
201 case 1:
202 printf ("Usage:\n%s\n", cmdtp->usage);
203 return 1;
204 case 2:
205 if (strncmp(argv[1],"res",3) == 0) {
206 puts ("\nReset IDE"
207 #ifdef CONFIG_IDE_8xx_DIRECT
208 " on PCMCIA " PCMCIA_SLOT_MSG
209 #endif
210 ": ");
211
212 ide_init ();
213 return 0;
214 } else if (strncmp(argv[1],"inf",3) == 0) {
215 int i;
216
217 putc ('\n');
218
219 for (i=0; i<CFG_IDE_MAXDEVICE; ++i) {
220 if (ide_dev_desc[i].type==DEV_TYPE_UNKNOWN)
221 continue; /* list only known devices */
222 printf ("IDE device %d: ", i);
223 dev_print(&ide_dev_desc[i]);
224 }
225 return 0;
226
227 } else if (strncmp(argv[1],"dev",3) == 0) {
228 if ((curr_device < 0) || (curr_device >= CFG_IDE_MAXDEVICE)) {
229 puts ("\nno IDE devices available\n");
230 return 1;
231 }
232 printf ("\nIDE device %d: ", curr_device);
233 dev_print(&ide_dev_desc[curr_device]);
234 return 0;
235 } else if (strncmp(argv[1],"part",4) == 0) {
236 int dev, ok;
237
238 for (ok=0, dev=0; dev<CFG_IDE_MAXDEVICE; ++dev) {
239 if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
240 ++ok;
241 if (dev)
242 putc ('\n');
243 print_part(&ide_dev_desc[dev]);
244 }
245 }
246 if (!ok) {
247 puts ("\nno IDE devices available\n");
248 rcode ++;
249 }
250 return rcode;
251 }
252 printf ("Usage:\n%s\n", cmdtp->usage);
253 return 1;
254 case 3:
255 if (strncmp(argv[1],"dev",3) == 0) {
256 int dev = (int)simple_strtoul(argv[2], NULL, 10);
257
258 printf ("\nIDE device %d: ", dev);
259 if (dev >= CFG_IDE_MAXDEVICE) {
260 puts ("unknown device\n");
261 return 1;
262 }
263 dev_print(&ide_dev_desc[dev]);
264 /*ide_print (dev);*/
265
266 if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
267 return 1;
268 }
269
270 curr_device = dev;
271
272 puts ("... is now current device\n");
273
274 return 0;
275 } else if (strncmp(argv[1],"part",4) == 0) {
276 int dev = (int)simple_strtoul(argv[2], NULL, 10);
277
278 if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
279 print_part(&ide_dev_desc[dev]);
280 } else {
281 printf ("\nIDE device %d not available\n", dev);
282 rcode = 1;
283 }
284 return rcode;
285 #if 0
286 } else if (strncmp(argv[1],"pio",4) == 0) {
287 int mode = (int)simple_strtoul(argv[2], NULL, 10);
288
289 if ((mode >= 0) && (mode <= IDE_MAX_PIO_MODE)) {
290 puts ("\nSetting ");
291 pio_mode = mode;
292 ide_init ();
293 } else {
294 printf ("\nInvalid PIO mode %d (0 ... %d only)\n",
295 mode, IDE_MAX_PIO_MODE);
296 }
297 return;
298 #endif
299 }
300
301 printf ("Usage:\n%s\n", cmdtp->usage);
302 return 1;
303 default:
304 /* at least 4 args */
305
306 if (strcmp(argv[1],"read") == 0) {
307 ulong addr = simple_strtoul(argv[2], NULL, 16);
308 ulong cnt = simple_strtoul(argv[4], NULL, 16);
309 ulong n;
310 #ifdef CFG_64BIT_STRTOUL
311 lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
312
313 printf ("\nIDE read: device %d block # %qd, count %ld ... ",
314 curr_device, blk, cnt);
315 #else
316 lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
317
318 printf ("\nIDE read: device %d block # %ld, count %ld ... ",
319 curr_device, blk, cnt);
320 #endif
321
322 n = ide_dev_desc[curr_device].block_read (curr_device,
323 blk, cnt,
324 (ulong *)addr);
325 /* flush cache after read */
326 flush_cache (addr, cnt*ide_dev_desc[curr_device].blksz);
327
328 printf ("%ld blocks read: %s\n",
329 n, (n==cnt) ? "OK" : "ERROR");
330 if (n==cnt) {
331 return 0;
332 } else {
333 return 1;
334 }
335 } else if (strcmp(argv[1],"write") == 0) {
336 ulong addr = simple_strtoul(argv[2], NULL, 16);
337 ulong cnt = simple_strtoul(argv[4], NULL, 16);
338 ulong n;
339 #ifdef CFG_64BIT_STRTOUL
340 lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
341
342 printf ("\nIDE write: device %d block # %qd, count %ld ... ",
343 curr_device, blk, cnt);
344 #else
345 lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
346
347 printf ("\nIDE write: device %d block # %ld, count %ld ... ",
348 curr_device, blk, cnt);
349 #endif
350
351 n = ide_write (curr_device, blk, cnt, (ulong *)addr);
352
353 printf ("%ld blocks written: %s\n",
354 n, (n==cnt) ? "OK" : "ERROR");
355 if (n==cnt) {
356 return 0;
357 } else {
358 return 1;
359 }
360 } else {
361 printf ("Usage:\n%s\n", cmdtp->usage);
362 rcode = 1;
363 }
364
365 return rcode;
366 }
367 }
368
369 int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
370 {
371 char *boot_device = NULL;
372 char *ep;
373 int dev, part = 0;
374 ulong addr, cnt, checksum;
375 disk_partition_t info;
376 image_header_t *hdr;
377 int rcode = 0;
378
379 switch (argc) {
380 case 1:
381 addr = CFG_LOAD_ADDR;
382 boot_device = getenv ("bootdevice");
383 break;
384 case 2:
385 addr = simple_strtoul(argv[1], NULL, 16);
386 boot_device = getenv ("bootdevice");
387 break;
388 case 3:
389 addr = simple_strtoul(argv[1], NULL, 16);
390 boot_device = argv[2];
391 break;
392 default:
393 printf ("Usage:\n%s\n", cmdtp->usage);
394 SHOW_BOOT_PROGRESS (-1);
395 return 1;
396 }
397
398 if (!boot_device) {
399 puts ("\n** No boot device **\n");
400 SHOW_BOOT_PROGRESS (-1);
401 return 1;
402 }
403
404 dev = simple_strtoul(boot_device, &ep, 16);
405
406 if (ide_dev_desc[dev].type==DEV_TYPE_UNKNOWN) {
407 printf ("\n** Device %d not available\n", dev);
408 SHOW_BOOT_PROGRESS (-1);
409 return 1;
410 }
411
412 if (*ep) {
413 if (*ep != ':') {
414 puts ("\n** Invalid boot device, use `dev[:part]' **\n");
415 SHOW_BOOT_PROGRESS (-1);
416 return 1;
417 }
418 part = simple_strtoul(++ep, NULL, 16);
419 }
420 if (get_partition_info (ide_dev_desc, part, &info)) {
421 SHOW_BOOT_PROGRESS (-1);
422 return 1;
423 }
424 if ((strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
425 (strncmp((char *)info.type, BOOT_PART_COMP, sizeof(info.type)) != 0)) {
426 printf ("\n** Invalid partition type \"%.32s\""
427 " (expect \"" BOOT_PART_TYPE "\")\n",
428 info.type);
429 SHOW_BOOT_PROGRESS (-1);
430 return 1;
431 }
432
433 printf ("\nLoading from IDE device %d, partition %d: "
434 "Name: %.32s Type: %.32s\n",
435 dev, part, info.name, info.type);
436
437 debug ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n",
438 info.start, info.size, info.blksz);
439
440 if (ide_dev_desc[dev].block_read (dev, info.start, 1, (ulong *)addr) != 1) {
441 printf ("** Read error on %d:%d\n", dev, part);
442 SHOW_BOOT_PROGRESS (-1);
443 return 1;
444 }
445
446 hdr = (image_header_t *)addr;
447
448 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
449 printf("\n** Bad Magic Number **\n");
450 SHOW_BOOT_PROGRESS (-1);
451 return 1;
452 }
453
454 checksum = ntohl(hdr->ih_hcrc);
455 hdr->ih_hcrc = 0;
456
457 if (crc32 (0, (uchar *)hdr, sizeof(image_header_t)) != checksum) {
458 puts ("\n** Bad Header Checksum **\n");
459 SHOW_BOOT_PROGRESS (-2);
460 return 1;
461 }
462 hdr->ih_hcrc = htonl(checksum); /* restore checksum for later use */
463
464 print_image_hdr (hdr);
465
466 cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
467 cnt += info.blksz - 1;
468 cnt /= info.blksz;
469 cnt -= 1;
470
471 if (ide_dev_desc[dev].block_read (dev, info.start+1, cnt,
472 (ulong *)(addr+info.blksz)) != cnt) {
473 printf ("** Read error on %d:%d\n", dev, part);
474 SHOW_BOOT_PROGRESS (-1);
475 return 1;
476 }
477
478
479 /* Loading ok, update default load address */
480
481 load_addr = addr;
482
483 /* Check if we should attempt an auto-start */
484 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
485 char *local_args[2];
486 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
487
488 local_args[0] = argv[0];
489 local_args[1] = NULL;
490
491 printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
492
493 do_bootm (cmdtp, 0, 1, local_args);
494 rcode = 1;
495 }
496 return rcode;
497 }
498
499 /* ------------------------------------------------------------------------- */
500
501 void ide_init (void)
502 {
503
504 #ifdef CONFIG_IDE_8xx_DIRECT
505 volatile immap_t *immr = (immap_t *)CFG_IMMR;
506 volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
507 #endif
508 unsigned char c;
509 int i, bus;
510 #ifdef CONFIG_AMIGAONEG3SE
511 unsigned int max_bus_scan;
512 unsigned int ata_reset_time;
513 char *s;
514 #endif
515 #ifdef CONFIG_IDE_8xx_PCCARD
516 extern int pcmcia_on (void);
517 extern int ide_devices_found; /* Initialized in check_ide_device() */
518 #endif /* CONFIG_IDE_8xx_PCCARD */
519
520 #ifdef CONFIG_IDE_PREINIT
521 extern int ide_preinit (void);
522 WATCHDOG_RESET();
523
524 if (ide_preinit ()) {
525 puts ("ide_preinit failed\n");
526 return;
527 }
528 #endif /* CONFIG_IDE_PREINIT */
529
530 #ifdef CONFIG_IDE_8xx_PCCARD
531 extern int pcmcia_on (void);
532 extern int ide_devices_found; /* Initialized in check_ide_device() */
533
534 WATCHDOG_RESET();
535
536 ide_devices_found = 0;
537 /* initialize the PCMCIA IDE adapter card */
538 pcmcia_on();
539 if (!ide_devices_found)
540 return;
541 udelay (1000000); /* 1 s */
542 #endif /* CONFIG_IDE_8xx_PCCARD */
543
544 WATCHDOG_RESET();
545
546 #ifdef CONFIG_IDE_8xx_DIRECT
547 /* Initialize PIO timing tables */
548 for (i=0; i <= IDE_MAX_PIO_MODE; ++i) {
549 pio_config_clk[i].t_setup = PCMCIA_MK_CLKS(pio_config_ns[i].t_setup,
550 gd->bus_clk);
551 pio_config_clk[i].t_length = PCMCIA_MK_CLKS(pio_config_ns[i].t_length,
552 gd->bus_clk);
553 pio_config_clk[i].t_hold = PCMCIA_MK_CLKS(pio_config_ns[i].t_hold,
554 gd->bus_clk);
555 debug ( "PIO Mode %d: setup=%2d ns/%d clk"
556 " len=%3d ns/%d clk"
557 " hold=%2d ns/%d clk\n",
558 i,
559 pio_config_ns[i].t_setup, pio_config_clk[i].t_setup,
560 pio_config_ns[i].t_length, pio_config_clk[i].t_length,
561 pio_config_ns[i].t_hold, pio_config_clk[i].t_hold);
562 }
563 #endif /* CONFIG_IDE_8xx_DIRECT */
564
565 /* Reset the IDE just to be sure.
566 * Light LED's to show
567 */
568 ide_led ((LED_IDE1 | LED_IDE2), 1); /* LED's on */
569 ide_reset (); /* ATAPI Drives seems to need a proper IDE Reset */
570
571 #ifdef CONFIG_IDE_8xx_DIRECT
572 /* PCMCIA / IDE initialization for common mem space */
573 pcmp->pcmc_pgcrb = 0;
574
575 /* start in PIO mode 0 - most relaxed timings */
576 pio_mode = 0;
577 set_pcmcia_timing (pio_mode);
578 #endif /* CONFIG_IDE_8xx_DIRECT */
579
580 /*
581 * Wait for IDE to get ready.
582 * According to spec, this can take up to 31 seconds!
583 */
584 #ifndef CONFIG_AMIGAONEG3SE
585 for (bus=0; bus<CFG_IDE_MAXBUS; ++bus) {
586 int dev = bus * (CFG_IDE_MAXDEVICE / CFG_IDE_MAXBUS);
587 #else
588 s = getenv("ide_maxbus");
589 if (s)
590 max_bus_scan = simple_strtol(s, NULL, 10);
591 else
592 max_bus_scan = CFG_IDE_MAXBUS;
593
594 for (bus=0; bus<max_bus_scan; ++bus) {
595 int dev = bus * (CFG_IDE_MAXDEVICE / max_bus_scan);
596 #endif
597
598 #ifdef CONFIG_IDE_8xx_PCCARD
599 /* Skip non-ide devices from probing */
600 if ((ide_devices_found & (1 << bus)) == 0) {
601 ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
602 continue;
603 }
604 #endif
605 printf ("Bus %d: ", bus);
606
607 ide_bus_ok[bus] = 0;
608
609 /* Select device
610 */
611 udelay (100000); /* 100 ms */
612 ide_outb (dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
613 udelay (100000); /* 100 ms */
614 #ifdef CONFIG_AMIGAONEG3SE
615 ata_reset_time = ATA_RESET_TIME;
616 s = getenv("ide_reset_timeout");
617 if (s) ata_reset_time = 2*simple_strtol(s, NULL, 10);
618 #endif
619 i = 0;
620 do {
621 udelay (10000); /* 10 ms */
622
623 c = ide_inb (dev, ATA_STATUS);
624 i++;
625 #ifdef CONFIG_AMIGAONEG3SE
626 if (i > (ata_reset_time * 100)) {
627 #else
628 if (i > (ATA_RESET_TIME * 100)) {
629 #endif
630 puts ("** Timeout **\n");
631 ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
632 #ifdef CONFIG_AMIGAONEG3SE
633 /* If this is the second bus, the first one was OK */
634 if (bus != 0) {
635 ide_bus_ok[bus] = 0;
636 goto skip_bus;
637 }
638 #endif
639 return;
640 }
641 if ((i >= 100) && ((i%100)==0)) {
642 putc ('.');
643 }
644 } while (c & ATA_STAT_BUSY);
645
646 if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) {
647 puts ("not available ");
648 debug ("Status = 0x%02X ", c);
649 #ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */
650 } else if ((c & ATA_STAT_READY) == 0) {
651 puts ("not available ");
652 debug ("Status = 0x%02X ", c);
653 #endif
654 } else {
655 puts ("OK ");
656 ide_bus_ok[bus] = 1;
657 }
658 WATCHDOG_RESET();
659 }
660
661 #ifdef CONFIG_AMIGAONEG3SE
662 skip_bus:
663 #endif
664 putc ('\n');
665
666 ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
667
668 curr_device = -1;
669 for (i=0; i<CFG_IDE_MAXDEVICE; ++i) {
670 #ifdef CONFIG_IDE_LED
671 int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2;
672 #endif
673 ide_dev_desc[i].type=DEV_TYPE_UNKNOWN;
674 ide_dev_desc[i].if_type=IF_TYPE_IDE;
675 ide_dev_desc[i].dev=i;
676 ide_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
677 ide_dev_desc[i].blksz=0;
678 ide_dev_desc[i].lba=0;
679 ide_dev_desc[i].block_read=ide_read;
680 if (!ide_bus_ok[IDE_BUS(i)])
681 continue;
682 ide_led (led, 1); /* LED on */
683 ide_ident(&ide_dev_desc[i]);
684 ide_led (led, 0); /* LED off */
685 dev_print(&ide_dev_desc[i]);
686 /* ide_print (i); */
687 if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) {
688 init_part (&ide_dev_desc[i]); /* initialize partition type */
689 if (curr_device < 0)
690 curr_device = i;
691 }
692 }
693 WATCHDOG_RESET();
694 }
695
696 /* ------------------------------------------------------------------------- */
697
698 block_dev_desc_t * ide_get_dev(int dev)
699 {
700 return ((block_dev_desc_t *)&ide_dev_desc[dev]);
701 }
702
703
704 #ifdef CONFIG_IDE_8xx_DIRECT
705
706 static void
707 set_pcmcia_timing (int pmode)
708 {
709 volatile immap_t *immr = (immap_t *)CFG_IMMR;
710 volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
711 ulong timings;
712
713 debug ("Set timing for PIO Mode %d\n", pmode);
714
715 timings = PCMCIA_SHT(pio_config_clk[pmode].t_hold)
716 | PCMCIA_SST(pio_config_clk[pmode].t_setup)
717 | PCMCIA_SL (pio_config_clk[pmode].t_length)
718 ;
719
720 /* IDE 0
721 */
722 pcmp->pcmc_pbr0 = CFG_PCMCIA_PBR0;
723 pcmp->pcmc_por0 = CFG_PCMCIA_POR0
724 #if (CFG_PCMCIA_POR0 != 0)
725 | timings
726 #endif
727 ;
728 debug ("PBR0: %08x POR0: %08x\n", pcmp->pcmc_pbr0, pcmp->pcmc_por0);
729
730 pcmp->pcmc_pbr1 = CFG_PCMCIA_PBR1;
731 pcmp->pcmc_por1 = CFG_PCMCIA_POR1
732 #if (CFG_PCMCIA_POR1 != 0)
733 | timings
734 #endif
735 ;
736 debug ("PBR1: %08x POR1: %08x\n", pcmp->pcmc_pbr1, pcmp->pcmc_por1);
737
738 pcmp->pcmc_pbr2 = CFG_PCMCIA_PBR2;
739 pcmp->pcmc_por2 = CFG_PCMCIA_POR2
740 #if (CFG_PCMCIA_POR2 != 0)
741 | timings
742 #endif
743 ;
744 debug ("PBR2: %08x POR2: %08x\n", pcmp->pcmc_pbr2, pcmp->pcmc_por2);
745
746 pcmp->pcmc_pbr3 = CFG_PCMCIA_PBR3;
747 pcmp->pcmc_por3 = CFG_PCMCIA_POR3
748 #if (CFG_PCMCIA_POR3 != 0)
749 | timings
750 #endif
751 ;
752 debug ("PBR3: %08x POR3: %08x\n", pcmp->pcmc_pbr3, pcmp->pcmc_por3);
753
754 /* IDE 1
755 */
756 pcmp->pcmc_pbr4 = CFG_PCMCIA_PBR4;
757 pcmp->pcmc_por4 = CFG_PCMCIA_POR4
758 #if (CFG_PCMCIA_POR4 != 0)
759 | timings
760 #endif
761 ;
762 debug ("PBR4: %08x POR4: %08x\n", pcmp->pcmc_pbr4, pcmp->pcmc_por4);
763
764 pcmp->pcmc_pbr5 = CFG_PCMCIA_PBR5;
765 pcmp->pcmc_por5 = CFG_PCMCIA_POR5
766 #if (CFG_PCMCIA_POR5 != 0)
767 | timings
768 #endif
769 ;
770 debug ("PBR5: %08x POR5: %08x\n", pcmp->pcmc_pbr5, pcmp->pcmc_por5);
771
772 pcmp->pcmc_pbr6 = CFG_PCMCIA_PBR6;
773 pcmp->pcmc_por6 = CFG_PCMCIA_POR6
774 #if (CFG_PCMCIA_POR6 != 0)
775 | timings
776 #endif
777 ;
778 debug ("PBR6: %08x POR6: %08x\n", pcmp->pcmc_pbr6, pcmp->pcmc_por6);
779
780 pcmp->pcmc_pbr7 = CFG_PCMCIA_PBR7;
781 pcmp->pcmc_por7 = CFG_PCMCIA_POR7
782 #if (CFG_PCMCIA_POR7 != 0)
783 | timings
784 #endif
785 ;
786 debug ("PBR7: %08x POR7: %08x\n", pcmp->pcmc_pbr7, pcmp->pcmc_por7);
787
788 }
789
790 #endif /* CONFIG_IDE_8xx_DIRECT */
791
792 /* ------------------------------------------------------------------------- */
793
794 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
795 static void __inline__
796 ide_outb(int dev, int port, unsigned char val)
797 {
798 debug ("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
799 dev, port, val, (ATA_CURR_BASE(dev)+port));
800
801 /* Ensure I/O operations complete */
802 EIEIO;
803 *((uchar *)(ATA_CURR_BASE(dev)+port)) = val;
804 }
805 #else /* ! __PPC__ */
806 static void __inline__
807 ide_outb(int dev, int port, unsigned char val)
808 {
809 outb(val, ATA_CURR_BASE(dev)+port);
810 }
811 #endif /* __PPC__ */
812
813
814 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
815 static unsigned char __inline__
816 ide_inb(int dev, int port)
817 {
818 uchar val;
819 /* Ensure I/O operations complete */
820 EIEIO;
821 val = *((uchar *)(ATA_CURR_BASE(dev)+port));
822 debug ("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
823 dev, port, (ATA_CURR_BASE(dev)+port), val);
824 return (val);
825 }
826 #else /* ! __PPC__ */
827 static unsigned char __inline__
828 ide_inb(int dev, int port)
829 {
830 return inb(ATA_CURR_BASE(dev)+port);
831 }
832 #endif /* __PPC__ */
833
834 #ifdef __PPC__
835 # ifdef CONFIG_AMIGAONEG3SE
836 static void
837 output_data_short(int dev, ulong *sect_buf, int words)
838 {
839 ushort *dbuf;
840 volatile ushort *pbuf;
841
842 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
843 dbuf = (ushort *)sect_buf;
844 while (words--) {
845 EIEIO;
846 *pbuf = *dbuf++;
847 EIEIO;
848 }
849
850 if (words&1)
851 *pbuf = 0;
852 }
853 # endif /* CONFIG_AMIGAONEG3SE */
854 #endif /* __PPC_ */
855
856 /* We only need to swap data if we are running on a big endian cpu. */
857 /* But Au1x00 cpu:s already swaps data in big endian mode! */
858 #if defined(__LITTLE_ENDIAN) || ( defined(CONFIG_AU1X00) && !defined(CONFIG_GTH2) )
859 #define input_swap_data(x,y,z) input_data(x,y,z)
860 #else
861 static void
862 input_swap_data(int dev, ulong *sect_buf, int words)
863 {
864 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
865 uchar i;
866 volatile uchar *pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
867 volatile uchar *pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
868 ushort *dbuf = (ushort *)sect_buf;
869
870 while (words--) {
871 for (i=0; i<2; i++) {
872 *(((uchar *)(dbuf)) + 1) = *pbuf_even;
873 *(uchar *)dbuf = *pbuf_odd;
874 dbuf+=1;
875 }
876 }
877 #else
878 volatile ushort *pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
879 ushort *dbuf = (ushort *)sect_buf;
880
881 debug("in input swap data base for read is %lx\n", (unsigned long) pbuf);
882
883 while (words--) {
884 #ifdef __MIPS__
885 *dbuf++ = swab16p((u16*)pbuf);
886 *dbuf++ = swab16p((u16*)pbuf);
887 #else
888 *dbuf++ = ld_le16(pbuf);
889 *dbuf++ = ld_le16(pbuf);
890 #endif /* !MIPS */
891 }
892 #endif
893 }
894 #endif /* __LITTLE_ENDIAN || CONFIG_AU1X00 */
895
896
897 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
898 static void
899 output_data(int dev, ulong *sect_buf, int words)
900 {
901 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
902 uchar *dbuf;
903 volatile uchar *pbuf_even;
904 volatile uchar *pbuf_odd;
905
906 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
907 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
908 dbuf = (uchar *)sect_buf;
909 while (words--) {
910 EIEIO;
911 *pbuf_even = *dbuf++;
912 EIEIO;
913 *pbuf_odd = *dbuf++;
914 EIEIO;
915 *pbuf_even = *dbuf++;
916 EIEIO;
917 *pbuf_odd = *dbuf++;
918 }
919 #else
920 ushort *dbuf;
921 volatile ushort *pbuf;
922
923 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
924 dbuf = (ushort *)sect_buf;
925 while (words--) {
926 EIEIO;
927 *pbuf = *dbuf++;
928 EIEIO;
929 *pbuf = *dbuf++;
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)
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 EIEIO;
978 *dbuf++ = *pbuf;
979 EIEIO;
980 *dbuf++ = *pbuf;
981 }
982 #endif
983 }
984 #else /* ! __PPC__ */
985 static void
986 input_data(int dev, ulong *sect_buf, int words)
987 {
988 insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1);
989 }
990
991 #endif /* __PPC__ */
992
993 #ifdef CONFIG_AMIGAONEG3SE
994 static void
995 input_data_short(int dev, ulong *sect_buf, int words)
996 {
997 ushort *dbuf;
998 volatile ushort *pbuf;
999
1000 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
1001 dbuf = (ushort *)sect_buf;
1002 while (words--) {
1003 EIEIO;
1004 *dbuf++ = *pbuf;
1005 EIEIO;
1006 }
1007
1008 if (words&1) {
1009 ushort dummy;
1010 dummy = *pbuf;
1011 }
1012 }
1013 #endif
1014
1015 /* -------------------------------------------------------------------------
1016 */
1017 static void ide_ident (block_dev_desc_t *dev_desc)
1018 {
1019 ulong iobuf[ATA_SECTORWORDS];
1020 unsigned char c;
1021 hd_driveid_t *iop = (hd_driveid_t *)iobuf;
1022
1023 #ifdef CONFIG_AMIGAONEG3SE
1024 int max_bus_scan;
1025 char *s;
1026 #endif
1027 #ifdef CONFIG_ATAPI
1028 int retries = 0;
1029 int do_retry = 0;
1030 #endif
1031
1032 #if 0
1033 int mode, cycle_time;
1034 #endif
1035 int device;
1036 device=dev_desc->dev;
1037 printf (" Device %d: ", device);
1038
1039 #ifdef CONFIG_AMIGAONEG3SE
1040 s = getenv("ide_maxbus");
1041 if (s) {
1042 max_bus_scan = simple_strtol(s, NULL, 10);
1043 } else {
1044 max_bus_scan = CFG_IDE_MAXBUS;
1045 }
1046 if (device >= max_bus_scan*2) {
1047 dev_desc->type=DEV_TYPE_UNKNOWN;
1048 return;
1049 }
1050 #endif
1051
1052 ide_led (DEVICE_LED(device), 1); /* LED on */
1053 /* Select device
1054 */
1055 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1056 dev_desc->if_type=IF_TYPE_IDE;
1057 #ifdef CONFIG_ATAPI
1058
1059 do_retry = 0;
1060 retries = 0;
1061
1062 /* Warning: This will be tricky to read */
1063 while (retries <= 1) {
1064 /* check signature */
1065 if ((ide_inb(device,ATA_SECT_CNT) == 0x01) &&
1066 (ide_inb(device,ATA_SECT_NUM) == 0x01) &&
1067 (ide_inb(device,ATA_CYL_LOW) == 0x14) &&
1068 (ide_inb(device,ATA_CYL_HIGH) == 0xEB)) {
1069 /* ATAPI Signature found */
1070 dev_desc->if_type=IF_TYPE_ATAPI;
1071 /* Start Ident Command
1072 */
1073 ide_outb (device, ATA_COMMAND, ATAPI_CMD_IDENT);
1074 /*
1075 * Wait for completion - ATAPI devices need more time
1076 * to become ready
1077 */
1078 c = ide_wait (device, ATAPI_TIME_OUT);
1079 } else
1080 #endif
1081 {
1082 /* Start Ident Command
1083 */
1084 ide_outb (device, ATA_COMMAND, ATA_CMD_IDENT);
1085
1086 /* Wait for completion
1087 */
1088 c = ide_wait (device, IDE_TIME_OUT);
1089 }
1090 ide_led (DEVICE_LED(device), 0); /* LED off */
1091
1092 if (((c & ATA_STAT_DRQ) == 0) ||
1093 ((c & (ATA_STAT_FAULT|ATA_STAT_ERR)) != 0) ) {
1094 #ifdef CONFIG_ATAPI
1095 #ifdef CONFIG_AMIGAONEG3SE
1096 s = getenv("ide_doreset");
1097 if (s && strcmp(s, "on") == 0)
1098 #endif
1099 {
1100 /* Need to soft reset the device in case it's an ATAPI... */
1101 debug ("Retrying...\n");
1102 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1103 udelay(100000);
1104 ide_outb (device, ATA_COMMAND, 0x08);
1105 udelay (500000); /* 500 ms */
1106 }
1107 /* Select device
1108 */
1109 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1110 retries++;
1111 #else
1112 return;
1113 #endif
1114 }
1115 #ifdef CONFIG_ATAPI
1116 else
1117 break;
1118 } /* see above - ugly to read */
1119
1120 if (retries == 2) /* Not found */
1121 return;
1122 #endif
1123
1124 input_swap_data (device, iobuf, ATA_SECTORWORDS);
1125
1126 ident_cpy (dev_desc->revision, iop->fw_rev, sizeof(dev_desc->revision));
1127 ident_cpy (dev_desc->vendor, iop->model, sizeof(dev_desc->vendor));
1128 ident_cpy (dev_desc->product, iop->serial_no, sizeof(dev_desc->product));
1129 #ifdef __LITTLE_ENDIAN
1130 /*
1131 * firmware revision and model number have Big Endian Byte
1132 * order in Word. Convert both to little endian.
1133 *
1134 * See CF+ and CompactFlash Specification Revision 2.0:
1135 * 6.2.1.6: Identfy Drive, Table 39 for more details
1136 */
1137
1138 strswab (dev_desc->revision);
1139 strswab (dev_desc->vendor);
1140 #endif /* __LITTLE_ENDIAN */
1141
1142 if ((iop->config & 0x0080)==0x0080)
1143 dev_desc->removable = 1;
1144 else
1145 dev_desc->removable = 0;
1146
1147 #if 0
1148 /*
1149 * Drive PIO mode autoselection
1150 */
1151 mode = iop->tPIO;
1152
1153 printf ("tPIO = 0x%02x = %d\n",mode, mode);
1154 if (mode > 2) { /* 2 is maximum allowed tPIO value */
1155 mode = 2;
1156 debug ("Override tPIO -> 2\n");
1157 }
1158 if (iop->field_valid & 2) { /* drive implements ATA2? */
1159 debug ("Drive implements ATA2\n");
1160 if (iop->capability & 8) { /* drive supports use_iordy? */
1161 cycle_time = iop->eide_pio_iordy;
1162 } else {
1163 cycle_time = iop->eide_pio;
1164 }
1165 debug ("cycle time = %d\n", cycle_time);
1166 mode = 4;
1167 if (cycle_time > 120) mode = 3; /* 120 ns for PIO mode 4 */
1168 if (cycle_time > 180) mode = 2; /* 180 ns for PIO mode 3 */
1169 if (cycle_time > 240) mode = 1; /* 240 ns for PIO mode 4 */
1170 if (cycle_time > 383) mode = 0; /* 383 ns for PIO mode 4 */
1171 }
1172 printf ("PIO mode to use: PIO %d\n", mode);
1173 #endif /* 0 */
1174
1175 #ifdef CONFIG_ATAPI
1176 if (dev_desc->if_type==IF_TYPE_ATAPI) {
1177 atapi_inquiry(dev_desc);
1178 return;
1179 }
1180 #endif /* CONFIG_ATAPI */
1181
1182 #ifdef __BIG_ENDIAN
1183 /* swap shorts */
1184 dev_desc->lba = (iop->lba_capacity << 16) | (iop->lba_capacity >> 16);
1185 #else /* ! __BIG_ENDIAN */
1186 /*
1187 * do not swap shorts on little endian
1188 *
1189 * See CF+ and CompactFlash Specification Revision 2.0:
1190 * 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
1191 */
1192 dev_desc->lba = iop->lba_capacity;
1193 #endif /* __BIG_ENDIAN */
1194
1195 #ifdef CONFIG_LBA48
1196 if (iop->command_set_2 & 0x0400) { /* LBA 48 support */
1197 dev_desc->lba48 = 1;
1198 dev_desc->lba = (unsigned long long)iop->lba48_capacity[0] |
1199 ((unsigned long long)iop->lba48_capacity[1] << 16) |
1200 ((unsigned long long)iop->lba48_capacity[2] << 32) |
1201 ((unsigned long long)iop->lba48_capacity[3] << 48);
1202 } else {
1203 dev_desc->lba48 = 0;
1204 }
1205 #endif /* CONFIG_LBA48 */
1206 /* assuming HD */
1207 dev_desc->type=DEV_TYPE_HARDDISK;
1208 dev_desc->blksz=ATA_BLOCKSIZE;
1209 dev_desc->lun=0; /* just to fill something in... */
1210
1211 #if 0 /* only used to test the powersaving mode,
1212 * if enabled, the drive goes after 5 sec
1213 * in standby mode */
1214 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1215 c = ide_wait (device, IDE_TIME_OUT);
1216 ide_outb (device, ATA_SECT_CNT, 1);
1217 ide_outb (device, ATA_LBA_LOW, 0);
1218 ide_outb (device, ATA_LBA_MID, 0);
1219 ide_outb (device, ATA_LBA_HIGH, 0);
1220 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1221 ide_outb (device, ATA_COMMAND, 0xe3);
1222 udelay (50);
1223 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1224 #endif
1225 }
1226
1227
1228 /* ------------------------------------------------------------------------- */
1229
1230 ulong ide_read (int device, lbaint_t blknr, ulong blkcnt, ulong *buffer)
1231 {
1232 ulong n = 0;
1233 unsigned char c;
1234 unsigned char pwrsave=0; /* power save */
1235 #ifdef CONFIG_LBA48
1236 unsigned char lba48 = 0;
1237
1238 if (blknr & 0x0000fffff0000000) {
1239 /* more than 28 bits used, use 48bit mode */
1240 lba48 = 1;
1241 }
1242 #endif
1243 debug ("ide_read dev %d start %qX, blocks %lX buffer at %lX\n",
1244 device, blknr, blkcnt, (ulong)buffer);
1245
1246 ide_led (DEVICE_LED(device), 1); /* LED on */
1247
1248 /* Select device
1249 */
1250 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1251 c = ide_wait (device, IDE_TIME_OUT);
1252
1253 if (c & ATA_STAT_BUSY) {
1254 printf ("IDE read: device %d not ready\n", device);
1255 goto IDE_READ_E;
1256 }
1257
1258 /* first check if the drive is in Powersaving mode, if yes,
1259 * increase the timeout value */
1260 ide_outb (device, ATA_COMMAND, ATA_CMD_CHK_PWR);
1261 udelay (50);
1262
1263 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1264
1265 if (c & ATA_STAT_BUSY) {
1266 printf ("IDE read: device %d not ready\n", device);
1267 goto IDE_READ_E;
1268 }
1269 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
1270 printf ("No Powersaving mode %X\n", c);
1271 } else {
1272 c = ide_inb(device,ATA_SECT_CNT);
1273 debug ("Powersaving %02X\n",c);
1274 if(c==0)
1275 pwrsave=1;
1276 }
1277
1278
1279 while (blkcnt-- > 0) {
1280
1281 c = ide_wait (device, IDE_TIME_OUT);
1282
1283 if (c & ATA_STAT_BUSY) {
1284 printf ("IDE read: device %d not ready\n", device);
1285 break;
1286 }
1287 #ifdef CONFIG_LBA48
1288 if (lba48) {
1289 /* write high bits */
1290 ide_outb (device, ATA_SECT_CNT, 0);
1291 ide_outb (device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
1292 ide_outb (device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
1293 ide_outb (device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
1294 }
1295 #endif
1296 ide_outb (device, ATA_SECT_CNT, 1);
1297 ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
1298 ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
1299 ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
1300
1301 #ifdef CONFIG_LBA48
1302 if (lba48) {
1303 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) );
1304 ide_outb (device, ATA_COMMAND, ATA_CMD_READ_EXT);
1305
1306 } else
1307 #endif
1308 {
1309 ide_outb (device, ATA_DEV_HD, ATA_LBA |
1310 ATA_DEVICE(device) |
1311 ((blknr >> 24) & 0xF) );
1312 ide_outb (device, ATA_COMMAND, ATA_CMD_READ);
1313 }
1314
1315 udelay (50);
1316
1317 if(pwrsave) {
1318 c = ide_wait (device, IDE_SPIN_UP_TIME_OUT); /* may take up to 4 sec */
1319 pwrsave=0;
1320 } else {
1321 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1322 }
1323
1324 if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) {
1325 #if defined(CFG_64BIT_LBA) && defined(CFG_64BIT_VSPRINTF)
1326 printf ("Error (no IRQ) dev %d blk %qd: status 0x%02x\n",
1327 device, blknr, c);
1328 #else
1329 printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n",
1330 device, (ulong)blknr, c);
1331 #endif
1332 break;
1333 }
1334
1335 input_data (device, buffer, ATA_SECTORWORDS);
1336 (void) ide_inb (device, ATA_STATUS); /* clear IRQ */
1337
1338 ++n;
1339 ++blknr;
1340 buffer += ATA_SECTORWORDS;
1341 }
1342 IDE_READ_E:
1343 ide_led (DEVICE_LED(device), 0); /* LED off */
1344 return (n);
1345 }
1346
1347 /* ------------------------------------------------------------------------- */
1348
1349
1350 ulong ide_write (int device, lbaint_t blknr, ulong blkcnt, ulong *buffer)
1351 {
1352 ulong n = 0;
1353 unsigned char c;
1354 #ifdef CONFIG_LBA48
1355 unsigned char lba48 = 0;
1356
1357 if (blknr & 0x0000fffff0000000) {
1358 /* more than 28 bits used, use 48bit mode */
1359 lba48 = 1;
1360 }
1361 #endif
1362
1363 ide_led (DEVICE_LED(device), 1); /* LED on */
1364
1365 /* Select device
1366 */
1367 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1368
1369 while (blkcnt-- > 0) {
1370
1371 c = ide_wait (device, IDE_TIME_OUT);
1372
1373 if (c & ATA_STAT_BUSY) {
1374 printf ("IDE read: device %d not ready\n", device);
1375 goto WR_OUT;
1376 }
1377 #ifdef CONFIG_LBA48
1378 if (lba48) {
1379 /* write high bits */
1380 ide_outb (device, ATA_SECT_CNT, 0);
1381 ide_outb (device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
1382 ide_outb (device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
1383 ide_outb (device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
1384 }
1385 #endif
1386 ide_outb (device, ATA_SECT_CNT, 1);
1387 ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
1388 ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
1389 ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
1390
1391 #ifdef CONFIG_LBA48
1392 if (lba48) {
1393 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) );
1394 ide_outb (device, ATA_COMMAND, ATA_CMD_WRITE_EXT);
1395
1396 } else
1397 #endif
1398 {
1399 ide_outb (device, ATA_DEV_HD, ATA_LBA |
1400 ATA_DEVICE(device) |
1401 ((blknr >> 24) & 0xF) );
1402 ide_outb (device, ATA_COMMAND, ATA_CMD_WRITE);
1403 }
1404
1405 udelay (50);
1406
1407 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1408
1409 if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) {
1410 #if defined(CFG_64BIT_LBA) && defined(CFG_64BIT_VSPRINTF)
1411 printf ("Error (no IRQ) dev %d blk %qd: status 0x%02x\n",
1412 device, blknr, c);
1413 #else
1414 printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n",
1415 device, (ulong)blknr, c);
1416 #endif
1417 goto WR_OUT;
1418 }
1419
1420 output_data (device, buffer, ATA_SECTORWORDS);
1421 c = ide_inb (device, ATA_STATUS); /* clear IRQ */
1422 ++n;
1423 ++blknr;
1424 buffer += ATA_SECTORWORDS;
1425 }
1426 WR_OUT:
1427 ide_led (DEVICE_LED(device), 0); /* LED off */
1428 return (n);
1429 }
1430
1431 /* ------------------------------------------------------------------------- */
1432
1433 /*
1434 * copy src to dest, skipping leading and trailing blanks and null
1435 * terminate the string
1436 * "len" is the size of available memory including the terminating '\0'
1437 */
1438 static void ident_cpy (unsigned char *dst, unsigned char *src, unsigned int len)
1439 {
1440 unsigned char *end, *last;
1441
1442 last = dst;
1443 end = src + len - 1;
1444
1445 /* reserve space for '\0' */
1446 if (len < 2)
1447 goto OUT;
1448
1449 /* skip leading white space */
1450 while ((*src) && (src<end) && (*src==' '))
1451 ++src;
1452
1453 /* copy string, omitting trailing white space */
1454 while ((*src) && (src<end)) {
1455 *dst++ = *src;
1456 if (*src++ != ' ')
1457 last = dst;
1458 }
1459 OUT:
1460 *last = '\0';
1461 }
1462
1463 /* ------------------------------------------------------------------------- */
1464
1465 /*
1466 * Wait until Busy bit is off, or timeout (in ms)
1467 * Return last status
1468 */
1469 static uchar ide_wait (int dev, ulong t)
1470 {
1471 ulong delay = 10 * t; /* poll every 100 us */
1472 uchar c;
1473
1474 while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
1475 udelay (100);
1476 if (delay-- == 0) {
1477 break;
1478 }
1479 }
1480 return (c);
1481 }
1482
1483 /* ------------------------------------------------------------------------- */
1484
1485 #ifdef CONFIG_IDE_RESET
1486 extern void ide_set_reset(int idereset);
1487
1488 static void ide_reset (void)
1489 {
1490 #if defined(CFG_PB_12V_ENABLE) || defined(CFG_PB_IDE_MOTOR)
1491 volatile immap_t *immr = (immap_t *)CFG_IMMR;
1492 #endif
1493 int i;
1494
1495 curr_device = -1;
1496 for (i=0; i<CFG_IDE_MAXBUS; ++i)
1497 ide_bus_ok[i] = 0;
1498 for (i=0; i<CFG_IDE_MAXDEVICE; ++i)
1499 ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
1500
1501 ide_set_reset (1); /* assert reset */
1502
1503 WATCHDOG_RESET();
1504
1505 #ifdef CFG_PB_12V_ENABLE
1506 immr->im_cpm.cp_pbdat &= ~(CFG_PB_12V_ENABLE); /* 12V Enable output OFF */
1507 immr->im_cpm.cp_pbpar &= ~(CFG_PB_12V_ENABLE);
1508 immr->im_cpm.cp_pbodr &= ~(CFG_PB_12V_ENABLE);
1509 immr->im_cpm.cp_pbdir |= CFG_PB_12V_ENABLE;
1510
1511 /* wait 500 ms for the voltage to stabilize
1512 */
1513 for (i=0; i<500; ++i) {
1514 udelay (1000);
1515 }
1516
1517 immr->im_cpm.cp_pbdat |= CFG_PB_12V_ENABLE; /* 12V Enable output ON */
1518 #endif /* CFG_PB_12V_ENABLE */
1519
1520 #ifdef CFG_PB_IDE_MOTOR
1521 /* configure IDE Motor voltage monitor pin as input */
1522 immr->im_cpm.cp_pbpar &= ~(CFG_PB_IDE_MOTOR);
1523 immr->im_cpm.cp_pbodr &= ~(CFG_PB_IDE_MOTOR);
1524 immr->im_cpm.cp_pbdir &= ~(CFG_PB_IDE_MOTOR);
1525
1526 /* wait up to 1 s for the motor voltage to stabilize
1527 */
1528 for (i=0; i<1000; ++i) {
1529 if ((immr->im_cpm.cp_pbdat & CFG_PB_IDE_MOTOR) != 0) {
1530 break;
1531 }
1532 udelay (1000);
1533 }
1534
1535 if (i == 1000) { /* Timeout */
1536 printf ("\nWarning: 5V for IDE Motor missing\n");
1537 # ifdef CONFIG_STATUS_LED
1538 # ifdef STATUS_LED_YELLOW
1539 status_led_set (STATUS_LED_YELLOW, STATUS_LED_ON );
1540 # endif
1541 # ifdef STATUS_LED_GREEN
1542 status_led_set (STATUS_LED_GREEN, STATUS_LED_OFF);
1543 # endif
1544 # endif /* CONFIG_STATUS_LED */
1545 }
1546 #endif /* CFG_PB_IDE_MOTOR */
1547
1548 WATCHDOG_RESET();
1549
1550 /* de-assert RESET signal */
1551 ide_set_reset(0);
1552
1553 /* wait 250 ms */
1554 for (i=0; i<250; ++i) {
1555 udelay (1000);
1556 }
1557 }
1558
1559 #endif /* CONFIG_IDE_RESET */
1560
1561 /* ------------------------------------------------------------------------- */
1562
1563 #if defined(CONFIG_IDE_LED) && \
1564 !defined(CONFIG_AMIGAONEG3SE)&& \
1565 !defined(CONFIG_CPC45) && \
1566 !defined(CONFIG_HMI10) && \
1567 !defined(CONFIG_KUP4K) && \
1568 !defined(CONFIG_KUP4X)
1569
1570 static uchar led_buffer = 0; /* Buffer for current LED status */
1571
1572 static void ide_led (uchar led, uchar status)
1573 {
1574 uchar *led_port = LED_PORT;
1575
1576 if (status) { /* switch LED on */
1577 led_buffer |= led;
1578 } else { /* switch LED off */
1579 led_buffer &= ~led;
1580 }
1581
1582 *led_port = led_buffer;
1583 }
1584
1585 #endif /* CONFIG_IDE_LED */
1586
1587 /* ------------------------------------------------------------------------- */
1588
1589 #ifdef CONFIG_ATAPI
1590 /****************************************************************************
1591 * ATAPI Support
1592 */
1593
1594 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
1595 /* since ATAPI may use commands with not 4 bytes alligned length
1596 * we have our own transfer functions, 2 bytes alligned */
1597 static void
1598 output_data_shorts(int dev, ushort *sect_buf, int shorts)
1599 {
1600 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
1601 uchar *dbuf;
1602 volatile uchar *pbuf_even;
1603 volatile uchar *pbuf_odd;
1604
1605 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
1606 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
1607 while (shorts--) {
1608 EIEIO;
1609 *pbuf_even = *dbuf++;
1610 EIEIO;
1611 *pbuf_odd = *dbuf++;
1612 }
1613 #else
1614 ushort *dbuf;
1615 volatile ushort *pbuf;
1616
1617 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
1618 dbuf = (ushort *)sect_buf;
1619
1620 debug ("in output data shorts base for read is %lx\n", (unsigned long) pbuf);
1621
1622 while (shorts--) {
1623 EIEIO;
1624 *pbuf = *dbuf++;
1625 }
1626 #endif
1627 }
1628
1629 static void
1630 input_data_shorts(int dev, ushort *sect_buf, int shorts)
1631 {
1632 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
1633 uchar *dbuf;
1634 volatile uchar *pbuf_even;
1635 volatile uchar *pbuf_odd;
1636
1637 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
1638 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
1639 while (shorts--) {
1640 EIEIO;
1641 *dbuf++ = *pbuf_even;
1642 EIEIO;
1643 *dbuf++ = *pbuf_odd;
1644 }
1645 #else
1646 ushort *dbuf;
1647 volatile ushort *pbuf;
1648
1649 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
1650 dbuf = (ushort *)sect_buf;
1651
1652 debug("in input data shorts base for read is %lx\n", (unsigned long) pbuf);
1653
1654 while (shorts--) {
1655 EIEIO;
1656 *dbuf++ = *pbuf;
1657 }
1658 #endif
1659 }
1660
1661 #else /* ! __PPC__ */
1662 static void
1663 output_data_shorts(int dev, ushort *sect_buf, int shorts)
1664 {
1665 outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
1666 }
1667
1668 static void
1669 input_data_shorts(int dev, ushort *sect_buf, int shorts)
1670 {
1671 insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
1672 }
1673
1674 #endif /* __PPC__ */
1675
1676 /*
1677 * Wait until (Status & mask) == res, or timeout (in ms)
1678 * Return last status
1679 * This is used since some ATAPI CD ROMs clears their Busy Bit first
1680 * and then they set their DRQ Bit
1681 */
1682 static uchar atapi_wait_mask (int dev, ulong t,uchar mask, uchar res)
1683 {
1684 ulong delay = 10 * t; /* poll every 100 us */
1685 uchar c;
1686
1687 c = ide_inb(dev,ATA_DEV_CTL); /* prevents to read the status before valid */
1688 while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) {
1689 /* break if error occurs (doesn't make sense to wait more) */
1690 if((c & ATA_STAT_ERR)==ATA_STAT_ERR)
1691 break;
1692 udelay (100);
1693 if (delay-- == 0) {
1694 break;
1695 }
1696 }
1697 return (c);
1698 }
1699
1700 /*
1701 * issue an atapi command
1702 */
1703 unsigned char atapi_issue(int device,unsigned char* ccb,int ccblen, unsigned char * buffer,int buflen)
1704 {
1705 unsigned char c,err,mask,res;
1706 int n;
1707 ide_led (DEVICE_LED(device), 1); /* LED on */
1708
1709 /* Select device
1710 */
1711 mask = ATA_STAT_BUSY|ATA_STAT_DRQ;
1712 res = 0;
1713 #ifdef CONFIG_AMIGAONEG3SE
1714 # warning THF: Removed LBA mode ???
1715 #endif
1716 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1717 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1718 if ((c & mask) != res) {
1719 printf ("ATAPI_ISSUE: device %d not ready status %X\n", device,c);
1720 err=0xFF;
1721 goto AI_OUT;
1722 }
1723 /* write taskfile */
1724 ide_outb (device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */
1725 ide_outb (device, ATA_SECT_CNT, 0);
1726 ide_outb (device, ATA_SECT_NUM, 0);
1727 ide_outb (device, ATA_CYL_LOW, (unsigned char)(buflen & 0xFF));
1728 ide_outb (device, ATA_CYL_HIGH, (unsigned char)((buflen>>8) & 0xFF));
1729 #ifdef CONFIG_AMIGAONEG3SE
1730 # warning THF: Removed LBA mode ???
1731 #endif
1732 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1733
1734 ide_outb (device, ATA_COMMAND, ATAPI_CMD_PACKET);
1735 udelay (50);
1736
1737 mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR;
1738 res = ATA_STAT_DRQ;
1739 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1740
1741 if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */
1742 printf ("ATTAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n",device,c);
1743 err=0xFF;
1744 goto AI_OUT;
1745 }
1746
1747 output_data_shorts (device, (unsigned short *)ccb,ccblen/2); /* write command block */
1748 /* ATAPI Command written wait for completition */
1749 udelay (5000); /* device must set bsy */
1750
1751 mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR;
1752 /* if no data wait for DRQ = 0 BSY = 0
1753 * if data wait for DRQ = 1 BSY = 0 */
1754 res=0;
1755 if(buflen)
1756 res = ATA_STAT_DRQ;
1757 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1758 if ((c & mask) != res ) {
1759 if (c & ATA_STAT_ERR) {
1760 err=(ide_inb(device,ATA_ERROR_REG))>>4;
1761 debug ("atapi_issue 1 returned sense key %X status %02X\n",err,c);
1762 } else {
1763 printf ("ATTAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n", ccb[0],c);
1764 err=0xFF;
1765 }
1766 goto AI_OUT;
1767 }
1768 n=ide_inb(device, ATA_CYL_HIGH);
1769 n<<=8;
1770 n+=ide_inb(device, ATA_CYL_LOW);
1771 if(n>buflen) {
1772 printf("ERROR, transfer bytes %d requested only %d\n",n,buflen);
1773 err=0xff;
1774 goto AI_OUT;
1775 }
1776 if((n==0)&&(buflen<0)) {
1777 printf("ERROR, transfer bytes %d requested %d\n",n,buflen);
1778 err=0xff;
1779 goto AI_OUT;
1780 }
1781 if(n!=buflen) {
1782 debug ("WARNING, transfer bytes %d not equal with requested %d\n",n,buflen);
1783 }
1784 if(n!=0) { /* data transfer */
1785 debug ("ATAPI_ISSUE: %d Bytes to transfer\n",n);
1786 /* we transfer shorts */
1787 n>>=1;
1788 /* ok now decide if it is an in or output */
1789 if ((ide_inb(device, ATA_SECT_CNT)&0x02)==0) {
1790 debug ("Write to device\n");
1791 output_data_shorts(device,(unsigned short *)buffer,n);
1792 } else {
1793 debug ("Read from device @ %p shorts %d\n",buffer,n);
1794 input_data_shorts(device,(unsigned short *)buffer,n);
1795 }
1796 }
1797 udelay(5000); /* seems that some CD ROMs need this... */
1798 mask = ATA_STAT_BUSY|ATA_STAT_ERR;
1799 res=0;
1800 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1801 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
1802 err=(ide_inb(device,ATA_ERROR_REG) >> 4);
1803 debug ("atapi_issue 2 returned sense key %X status %X\n",err,c);
1804 } else {
1805 err = 0;
1806 }
1807 AI_OUT:
1808 ide_led (DEVICE_LED(device), 0); /* LED off */
1809 return (err);
1810 }
1811
1812 /*
1813 * sending the command to atapi_issue. If an status other than good
1814 * returns, an request_sense will be issued
1815 */
1816
1817 #define ATAPI_DRIVE_NOT_READY 100
1818 #define ATAPI_UNIT_ATTN 10
1819
1820 unsigned char atapi_issue_autoreq (int device,
1821 unsigned char* ccb,
1822 int ccblen,
1823 unsigned char *buffer,
1824 int buflen)
1825 {
1826 unsigned char sense_data[18],sense_ccb[12];
1827 unsigned char res,key,asc,ascq;
1828 int notready,unitattn;
1829
1830 #ifdef CONFIG_AMIGAONEG3SE
1831 char *s;
1832 unsigned int timeout, retrycnt;
1833
1834 s = getenv("ide_cd_timeout");
1835 timeout = s ? (simple_strtol(s, NULL, 10)*1000000)/5 : 0;
1836
1837 retrycnt = 0;
1838 #endif
1839
1840 unitattn=ATAPI_UNIT_ATTN;
1841 notready=ATAPI_DRIVE_NOT_READY;
1842
1843 retry:
1844 res= atapi_issue(device,ccb,ccblen,buffer,buflen);
1845 if (res==0)
1846 return (0); /* Ok */
1847
1848 if (res==0xFF)
1849 return (0xFF); /* error */
1850
1851 debug ("(auto_req)atapi_issue returned sense key %X\n",res);
1852
1853 memset(sense_ccb,0,sizeof(sense_ccb));
1854 memset(sense_data,0,sizeof(sense_data));
1855 sense_ccb[0]=ATAPI_CMD_REQ_SENSE;
1856 sense_ccb[4]=18; /* allocation Length */
1857
1858 res=atapi_issue(device,sense_ccb,12,sense_data,18);
1859 key=(sense_data[2]&0xF);
1860 asc=(sense_data[12]);
1861 ascq=(sense_data[13]);
1862
1863 debug ("ATAPI_CMD_REQ_SENSE returned %x\n",res);
1864 debug (" Sense page: %02X key %02X ASC %02X ASCQ %02X\n",
1865 sense_data[0],
1866 key,
1867 asc,
1868 ascq);
1869
1870 if((key==0))
1871 return 0; /* ok device ready */
1872
1873 if((key==6)|| (asc==0x29) || (asc==0x28)) { /* Unit Attention */
1874 if(unitattn-->0) {
1875 udelay(200*1000);
1876 goto retry;
1877 }
1878 printf("Unit Attention, tried %d\n",ATAPI_UNIT_ATTN);
1879 goto error;
1880 }
1881 if((asc==0x4) && (ascq==0x1)) { /* not ready, but will be ready soon */
1882 if (notready-->0) {
1883 udelay(200*1000);
1884 goto retry;
1885 }
1886 printf("Drive not ready, tried %d times\n",ATAPI_DRIVE_NOT_READY);
1887 goto error;
1888 }
1889 if(asc==0x3a) {
1890 debug ("Media not present\n");
1891 goto error;
1892 }
1893
1894 #ifdef CONFIG_AMIGAONEG3SE
1895 if ((sense_data[2]&0xF)==0x0B) {
1896 debug ("ABORTED COMMAND...retry\n");
1897 if (retrycnt++ < 4)
1898 goto retry;
1899 return (0xFF);
1900 }
1901
1902 if ((sense_data[2]&0xf) == 0x02 &&
1903 sense_data[12] == 0x04 &&
1904 sense_data[13] == 0x01 ) {
1905 debug ("Waiting for unit to become active\n");
1906 udelay(timeout);
1907 if (retrycnt++ < 4)
1908 goto retry;
1909 return 0xFF;
1910 }
1911 #endif /* CONFIG_AMIGAONEG3SE */
1912
1913 printf ("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq);
1914 error:
1915 debug ("ERROR Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq);
1916 return (0xFF);
1917 }
1918
1919
1920 static void atapi_inquiry(block_dev_desc_t * dev_desc)
1921 {
1922 unsigned char ccb[12]; /* Command descriptor block */
1923 unsigned char iobuf[64]; /* temp buf */
1924 unsigned char c;
1925 int device;
1926
1927 device=dev_desc->dev;
1928 dev_desc->type=DEV_TYPE_UNKNOWN; /* not yet valid */
1929 dev_desc->block_read=atapi_read;
1930
1931 memset(ccb,0,sizeof(ccb));
1932 memset(iobuf,0,sizeof(iobuf));
1933
1934 ccb[0]=ATAPI_CMD_INQUIRY;
1935 ccb[4]=40; /* allocation Legnth */
1936 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,40);
1937
1938 debug ("ATAPI_CMD_INQUIRY returned %x\n",c);
1939 if (c!=0)
1940 return;
1941
1942 /* copy device ident strings */
1943 ident_cpy(dev_desc->vendor,&iobuf[8],8);
1944 ident_cpy(dev_desc->product,&iobuf[16],16);
1945 ident_cpy(dev_desc->revision,&iobuf[32],5);
1946
1947 dev_desc->lun=0;
1948 dev_desc->lba=0;
1949 dev_desc->blksz=0;
1950 dev_desc->type=iobuf[0] & 0x1f;
1951
1952 if ((iobuf[1]&0x80)==0x80)
1953 dev_desc->removable = 1;
1954 else
1955 dev_desc->removable = 0;
1956
1957 memset(ccb,0,sizeof(ccb));
1958 memset(iobuf,0,sizeof(iobuf));
1959 ccb[0]=ATAPI_CMD_START_STOP;
1960 ccb[4]=0x03; /* start */
1961
1962 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0);
1963
1964 debug ("ATAPI_CMD_START_STOP returned %x\n",c);
1965 if (c!=0)
1966 return;
1967
1968 memset(ccb,0,sizeof(ccb));
1969 memset(iobuf,0,sizeof(iobuf));
1970 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0);
1971
1972 debug ("ATAPI_CMD_UNIT_TEST_READY returned %x\n",c);
1973 if (c!=0)
1974 return;
1975
1976 memset(ccb,0,sizeof(ccb));
1977 memset(iobuf,0,sizeof(iobuf));
1978 ccb[0]=ATAPI_CMD_READ_CAP;
1979 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,8);
1980 debug ("ATAPI_CMD_READ_CAP returned %x\n",c);
1981 if (c!=0)
1982 return;
1983
1984 debug ("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n",
1985 iobuf[0],iobuf[1],iobuf[2],iobuf[3],
1986 iobuf[4],iobuf[5],iobuf[6],iobuf[7]);
1987
1988 dev_desc->lba =((unsigned long)iobuf[0]<<24) +
1989 ((unsigned long)iobuf[1]<<16) +
1990 ((unsigned long)iobuf[2]<< 8) +
1991 ((unsigned long)iobuf[3]);
1992 dev_desc->blksz=((unsigned long)iobuf[4]<<24) +
1993 ((unsigned long)iobuf[5]<<16) +
1994 ((unsigned long)iobuf[6]<< 8) +
1995 ((unsigned long)iobuf[7]);
1996 #ifdef CONFIG_LBA48
1997 dev_desc->lba48 = 0; /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */
1998 #endif
1999 return;
2000 }
2001
2002
2003 /*
2004 * atapi_read:
2005 * we transfer only one block per command, since the multiple DRQ per
2006 * command is not yet implemented
2007 */
2008 #define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */
2009 #define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */
2010 #define ATAPI_READ_MAX_BLOCK ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE /* max blocks */
2011
2012 ulong atapi_read (int device, lbaint_t blknr, ulong blkcnt, ulong *buffer)
2013 {
2014 ulong n = 0;
2015 unsigned char ccb[12]; /* Command descriptor block */
2016 ulong cnt;
2017
2018 debug ("atapi_read dev %d start %lX, blocks %lX buffer at %lX\n",
2019 device, blknr, blkcnt, (ulong)buffer);
2020
2021 do {
2022 if (blkcnt>ATAPI_READ_MAX_BLOCK) {
2023 cnt=ATAPI_READ_MAX_BLOCK;
2024 } else {
2025 cnt=blkcnt;
2026 }
2027 ccb[0]=ATAPI_CMD_READ_12;
2028 ccb[1]=0; /* reserved */
2029 ccb[2]=(unsigned char) (blknr>>24) & 0xFF; /* MSB Block */
2030 ccb[3]=(unsigned char) (blknr>>16) & 0xFF; /* */
2031 ccb[4]=(unsigned char) (blknr>> 8) & 0xFF;
2032 ccb[5]=(unsigned char) blknr & 0xFF; /* LSB Block */
2033 ccb[6]=(unsigned char) (cnt >>24) & 0xFF; /* MSB Block count */
2034 ccb[7]=(unsigned char) (cnt >>16) & 0xFF;
2035 ccb[8]=(unsigned char) (cnt >> 8) & 0xFF;
2036 ccb[9]=(unsigned char) cnt & 0xFF; /* LSB Block */
2037 ccb[10]=0; /* reserved */
2038 ccb[11]=0; /* reserved */
2039
2040 if (atapi_issue_autoreq(device,ccb,12,
2041 (unsigned char *)buffer,
2042 cnt*ATAPI_READ_BLOCK_SIZE) == 0xFF) {
2043 return (n);
2044 }
2045 n+=cnt;
2046 blkcnt-=cnt;
2047 blknr+=cnt;
2048 buffer+=cnt*(ATAPI_READ_BLOCK_SIZE/4); /* ulong blocksize in ulong */
2049 } while (blkcnt > 0);
2050 return (n);
2051 }
2052
2053 /* ------------------------------------------------------------------------- */
2054
2055 #endif /* CONFIG_ATAPI */
2056
2057 U_BOOT_CMD(
2058 ide, 5, 1, do_ide,
2059 "ide - IDE sub-system\n",
2060 "reset - reset IDE controller\n"
2061 "ide info - show available IDE devices\n"
2062 "ide device [dev] - show or set current device\n"
2063 "ide part [dev] - print partition table of one or all IDE devices\n"
2064 "ide read addr blk# cnt\n"
2065 "ide write addr blk# cnt - read/write `cnt'"
2066 " blocks starting at block `blk#'\n"
2067 " to/from memory address `addr'\n"
2068 );
2069
2070 U_BOOT_CMD(
2071 diskboot, 3, 1, do_diskboot,
2072 "diskboot- boot from IDE device\n",
2073 "loadAddr dev:part\n"
2074 );
2075
2076 #endif /* CONFIG_COMMANDS & CFG_CMD_IDE */
uboot for JZ soc