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 #ifdef CONFIG_IDE_8xx_DIRECT
56 DECLARE_GLOBAL_DATA_PTR;
57 #endif
58
59 #ifdef __PPC__
60 # define EIEIO __asm__ volatile ("eieio")
61 # define SYNC __asm__ volatile ("sync")
62 #else
63 # define EIEIO /* nothing */
64 # define SYNC /* nothing */
65 #endif
66
67 #ifdef CONFIG_IDE_8xx_DIRECT
68 /* Timings for IDE Interface
69 *
70 * SETUP / LENGTH / HOLD - cycles valid for 50 MHz clk
71 * 70 165 30 PIO-Mode 0, [ns]
72 * 4 9 2 [Cycles]
73 * 50 125 20 PIO-Mode 1, [ns]
74 * 3 7 2 [Cycles]
75 * 30 100 15 PIO-Mode 2, [ns]
76 * 2 6 1 [Cycles]
77 * 30 80 10 PIO-Mode 3, [ns]
78 * 2 5 1 [Cycles]
79 * 25 70 10 PIO-Mode 4, [ns]
80 * 2 4 1 [Cycles]
81 */
82
83 const static pio_config_t pio_config_ns [IDE_MAX_PIO_MODE+1] =
84 {
85 /* Setup Length Hold */
86 { 70, 165, 30 }, /* PIO-Mode 0, [ns] */
87 { 50, 125, 20 }, /* PIO-Mode 1, [ns] */
88 { 30, 101, 15 }, /* PIO-Mode 2, [ns] */
89 { 30, 80, 10 }, /* PIO-Mode 3, [ns] */
90 { 25, 70, 10 }, /* PIO-Mode 4, [ns] */
91 };
92
93 static pio_config_t pio_config_clk [IDE_MAX_PIO_MODE+1];
94
95 #ifndef CONFIG_SYS_PIO_MODE
96 #define CONFIG_SYS_PIO_MODE 0 /* use a relaxed default */
97 #endif
98 static int pio_mode = CONFIG_SYS_PIO_MODE;
99
100 /* Make clock cycles and always round up */
101
102 #define PCMCIA_MK_CLKS( t, T ) (( (t) * (T) + 999U ) / 1000U )
103
104 #endif /* CONFIG_IDE_8xx_DIRECT */
105
106 /* ------------------------------------------------------------------------- */
107
108 /* Current I/O Device */
109 static int curr_device = -1;
110
111 /* Current offset for IDE0 / IDE1 bus access */
112 ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS] = {
113 #if defined(CONFIG_SYS_ATA_IDE0_OFFSET)
114 CONFIG_SYS_ATA_IDE0_OFFSET,
115 #endif
116 #if defined(CONFIG_SYS_ATA_IDE1_OFFSET) && (CONFIG_SYS_IDE_MAXBUS > 1)
117 CONFIG_SYS_ATA_IDE1_OFFSET,
118 #endif
119 };
120
121
122 #ifndef CONFIG_AMIGAONEG3SE
123 static int ide_bus_ok[CONFIG_SYS_IDE_MAXBUS];
124 #else
125 static int ide_bus_ok[CONFIG_SYS_IDE_MAXBUS] = {0,};
126 #endif
127
128 block_dev_desc_t ide_dev_desc[CONFIG_SYS_IDE_MAXDEVICE];
129 /* ------------------------------------------------------------------------- */
130
131 #ifdef CONFIG_IDE_LED
132 #if !defined(CONFIG_KUP4K) && !defined(CONFIG_KUP4X) &&!defined(CONFIG_BMS2003) &&!defined(CONFIG_CPC45)
133 static void ide_led (uchar led, uchar status);
134 #else
135 extern void ide_led (uchar led, uchar status);
136 #endif
137 #else
138 #ifndef CONFIG_AMIGAONEG3SE
139 #define ide_led(a,b) /* dummy */
140 #else
141 extern void ide_led(uchar led, uchar status);
142 #define LED_IDE1 1
143 #define LED_IDE2 2
144 #define CONFIG_IDE_LED 1
145 #define DEVICE_LED(x) 1
146 #endif
147 #endif
148
149 #ifdef CONFIG_IDE_RESET
150 static void ide_reset (void);
151 #else
152 #define ide_reset() /* dummy */
153 #endif
154
155 static void ide_ident (block_dev_desc_t *dev_desc);
156 static uchar ide_wait (int dev, ulong t);
157
158 #define IDE_TIME_OUT 2000 /* 2 sec timeout */
159
160 #define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */
161
162 #define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */
163
164 static void input_data(int dev, ulong *sect_buf, int words);
165 static void output_data(int dev, ulong *sect_buf, int words);
166 static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
167
168 #ifndef CONFIG_SYS_ATA_PORT_ADDR
169 #define CONFIG_SYS_ATA_PORT_ADDR(port) (port)
170 #endif
171
172 #ifdef CONFIG_ATAPI
173 static void atapi_inquiry(block_dev_desc_t *dev_desc);
174 ulong atapi_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer);
175 #endif
176
177
178 #ifdef CONFIG_IDE_8xx_DIRECT
179 static void set_pcmcia_timing (int pmode);
180 #endif
181
182 /* ------------------------------------------------------------------------- */
183
do_ide(cmd_tbl_t * cmdtp,int flag,int argc,char * argv[])184 int do_ide (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
185 {
186 int rcode = 0;
187
188 switch (argc) {
189 case 0:
190 case 1:
191 cmd_usage(cmdtp);
192 return 1;
193 case 2:
194 if (strncmp(argv[1],"res",3) == 0) {
195 puts ("\nReset IDE"
196 #ifdef CONFIG_IDE_8xx_DIRECT
197 " on PCMCIA " PCMCIA_SLOT_MSG
198 #endif
199 ": ");
200
201 ide_init ();
202 return 0;
203 } else if (strncmp(argv[1],"inf",3) == 0) {
204 int i;
205
206 putc ('\n');
207
208 for (i=0; i<CONFIG_SYS_IDE_MAXDEVICE; ++i) {
209 if (ide_dev_desc[i].type==DEV_TYPE_UNKNOWN)
210 continue; /* list only known devices */
211 printf ("IDE device %d: ", i);
212 dev_print(&ide_dev_desc[i]);
213 }
214 return 0;
215
216 } else if (strncmp(argv[1],"dev",3) == 0) {
217 if ((curr_device < 0) || (curr_device >= CONFIG_SYS_IDE_MAXDEVICE)) {
218 puts ("\nno IDE devices available\n");
219 return 1;
220 }
221 printf ("\nIDE device %d: ", curr_device);
222 dev_print(&ide_dev_desc[curr_device]);
223 return 0;
224 } else if (strncmp(argv[1],"part",4) == 0) {
225 int dev, ok;
226
227 for (ok=0, dev=0; dev<CONFIG_SYS_IDE_MAXDEVICE; ++dev) {
228 if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
229 ++ok;
230 if (dev)
231 putc ('\n');
232 print_part(&ide_dev_desc[dev]);
233 }
234 }
235 if (!ok) {
236 puts ("\nno IDE devices available\n");
237 rcode ++;
238 }
239 return rcode;
240 }
241 cmd_usage(cmdtp);
242 return 1;
243 case 3:
244 if (strncmp(argv[1],"dev",3) == 0) {
245 int dev = (int)simple_strtoul(argv[2], NULL, 10);
246
247 printf ("\nIDE device %d: ", dev);
248 if (dev >= CONFIG_SYS_IDE_MAXDEVICE) {
249 puts ("unknown device\n");
250 return 1;
251 }
252 dev_print(&ide_dev_desc[dev]);
253 /*ide_print (dev);*/
254
255 if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
256 return 1;
257 }
258
259 curr_device = dev;
260
261 puts ("... is now current device\n");
262
263 return 0;
264 } else if (strncmp(argv[1],"part",4) == 0) {
265 int dev = (int)simple_strtoul(argv[2], NULL, 10);
266
267 if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
268 print_part(&ide_dev_desc[dev]);
269 } else {
270 printf ("\nIDE device %d not available\n", dev);
271 rcode = 1;
272 }
273 return rcode;
274 #if 0
275 } else if (strncmp(argv[1],"pio",4) == 0) {
276 int mode = (int)simple_strtoul(argv[2], NULL, 10);
277
278 if ((mode >= 0) && (mode <= IDE_MAX_PIO_MODE)) {
279 puts ("\nSetting ");
280 pio_mode = mode;
281 ide_init ();
282 } else {
283 printf ("\nInvalid PIO mode %d (0 ... %d only)\n",
284 mode, IDE_MAX_PIO_MODE);
285 }
286 return;
287 #endif
288 }
289
290 cmd_usage(cmdtp);
291 return 1;
292 default:
293 /* at least 4 args */
294
295 if (strcmp(argv[1],"read") == 0) {
296 ulong addr = simple_strtoul(argv[2], NULL, 16);
297 ulong cnt = simple_strtoul(argv[4], NULL, 16);
298 ulong n;
299 #ifdef CONFIG_SYS_64BIT_LBA
300 lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
301
302 printf ("\nIDE read: device %d block # %Ld, count %ld ... ",
303 curr_device, blk, cnt);
304 #else
305 lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
306
307 printf ("\nIDE read: device %d block # %ld, count %ld ... ",
308 curr_device, blk, cnt);
309 #endif
310
311 n = ide_dev_desc[curr_device].block_read (curr_device,
312 blk, cnt,
313 (ulong *)addr);
314 /* flush cache after read */
315 flush_cache (addr, cnt*ide_dev_desc[curr_device].blksz);
316
317 printf ("%ld blocks read: %s\n",
318 n, (n==cnt) ? "OK" : "ERROR");
319 if (n==cnt) {
320 return 0;
321 } else {
322 return 1;
323 }
324 } else if (strcmp(argv[1],"write") == 0) {
325 ulong addr = simple_strtoul(argv[2], NULL, 16);
326 ulong cnt = simple_strtoul(argv[4], NULL, 16);
327 ulong n;
328 #ifdef CONFIG_SYS_64BIT_LBA
329 lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
330
331 printf ("\nIDE write: device %d block # %Ld, count %ld ... ",
332 curr_device, blk, cnt);
333 #else
334 lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
335
336 printf ("\nIDE write: device %d block # %ld, count %ld ... ",
337 curr_device, blk, cnt);
338 #endif
339
340 n = ide_write (curr_device, blk, cnt, (ulong *)addr);
341
342 printf ("%ld blocks written: %s\n",
343 n, (n==cnt) ? "OK" : "ERROR");
344 if (n==cnt) {
345 return 0;
346 } else {
347 return 1;
348 }
349 } else {
350 cmd_usage(cmdtp);
351 rcode = 1;
352 }
353
354 return rcode;
355 }
356 }
357
do_diskboot(cmd_tbl_t * cmdtp,int flag,int argc,char * argv[])358 int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
359 {
360 char *boot_device = NULL;
361 char *ep;
362 int dev, part = 0;
363 ulong addr, cnt;
364 disk_partition_t info;
365 image_header_t *hdr;
366 int rcode = 0;
367 #if defined(CONFIG_FIT)
368 const void *fit_hdr = NULL;
369 #endif
370
371 show_boot_progress (41);
372 switch (argc) {
373 case 1:
374 addr = CONFIG_SYS_LOAD_ADDR;
375 boot_device = getenv ("bootdevice");
376 break;
377 case 2:
378 addr = simple_strtoul(argv[1], NULL, 16);
379 boot_device = getenv ("bootdevice");
380 break;
381 case 3:
382 addr = simple_strtoul(argv[1], NULL, 16);
383 boot_device = argv[2];
384 break;
385 default:
386 cmd_usage(cmdtp);
387 show_boot_progress (-42);
388 return 1;
389 }
390 show_boot_progress (42);
391
392 if (!boot_device) {
393 puts ("\n** No boot device **\n");
394 show_boot_progress (-43);
395 return 1;
396 }
397 show_boot_progress (43);
398
399 dev = simple_strtoul(boot_device, &ep, 16);
400
401 if (ide_dev_desc[dev].type==DEV_TYPE_UNKNOWN) {
402 printf ("\n** Device %d not available\n", dev);
403 show_boot_progress (-44);
404 return 1;
405 }
406 show_boot_progress (44);
407
408 if (*ep) {
409 if (*ep != ':') {
410 puts ("\n** Invalid boot device, use `dev[:part]' **\n");
411 show_boot_progress (-45);
412 return 1;
413 }
414 part = simple_strtoul(++ep, NULL, 16);
415 }
416 show_boot_progress (45);
417 if (get_partition_info (&ide_dev_desc[dev], part, &info)) {
418 show_boot_progress (-46);
419 return 1;
420 }
421 show_boot_progress (46);
422 if ((strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
423 (strncmp((char *)info.type, BOOT_PART_COMP, sizeof(info.type)) != 0)) {
424 printf ("\n** Invalid partition type \"%.32s\""
425 " (expect \"" BOOT_PART_TYPE "\")\n",
426 info.type);
427 show_boot_progress (-47);
428 return 1;
429 }
430 show_boot_progress (47);
431
432 printf ("\nLoading from IDE device %d, partition %d: "
433 "Name: %.32s Type: %.32s\n",
434 dev, part, info.name, info.type);
435
436 debug ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n",
437 info.start, info.size, info.blksz);
438
439 if (ide_dev_desc[dev].block_read (dev, info.start, 1, (ulong *)addr) != 1) {
440 printf ("** Read error on %d:%d\n", dev, part);
441 show_boot_progress (-48);
442 return 1;
443 }
444 show_boot_progress (48);
445
446 switch (genimg_get_format ((void *)addr)) {
447 case IMAGE_FORMAT_LEGACY:
448 hdr = (image_header_t *)addr;
449
450 show_boot_progress (49);
451
452 if (!image_check_hcrc (hdr)) {
453 puts ("\n** Bad Header Checksum **\n");
454 show_boot_progress (-50);
455 return 1;
456 }
457 show_boot_progress (50);
458
459 image_print_contents (hdr);
460
461 cnt = image_get_image_size (hdr);
462 break;
463 #if defined(CONFIG_FIT)
464 case IMAGE_FORMAT_FIT:
465 fit_hdr = (const void *)addr;
466 puts ("Fit image detected...\n");
467
468 cnt = fit_get_size (fit_hdr);
469 break;
470 #endif
471 default:
472 show_boot_progress (-49);
473 puts ("** Unknown image type\n");
474 return 1;
475 }
476
477 cnt += info.blksz - 1;
478 cnt /= info.blksz;
479 cnt -= 1;
480
481 if (ide_dev_desc[dev].block_read (dev, info.start+1, cnt,
482 (ulong *)(addr+info.blksz)) != cnt) {
483 printf ("** Read error on %d:%d\n", dev, part);
484 show_boot_progress (-51);
485 return 1;
486 }
487 show_boot_progress (51);
488
489 #if defined(CONFIG_FIT)
490 /* This cannot be done earlier, we need complete FIT image in RAM first */
491 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
492 if (!fit_check_format (fit_hdr)) {
493 show_boot_progress (-140);
494 puts ("** Bad FIT image format\n");
495 return 1;
496 }
497 show_boot_progress (141);
498 fit_print_contents (fit_hdr);
499 }
500 #endif
501
502 /* Loading ok, update default load address */
503
504 load_addr = addr;
505
506 /* Check if we should attempt an auto-start */
507 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
508 char *local_args[2];
509 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
510
511 local_args[0] = argv[0];
512 local_args[1] = NULL;
513
514 printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
515
516 do_bootm (cmdtp, 0, 1, local_args);
517 rcode = 1;
518 }
519 return rcode;
520 }
521
522 /* ------------------------------------------------------------------------- */
523
524 void inline
__ide_outb(int dev,int port,unsigned char val)525 __ide_outb(int dev, int port, unsigned char val)
526 {
527 debug ("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
528 dev, port, val, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)));
529 outb(val, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)));
530 }
531 void ide_outb (int dev, int port, unsigned char val)
532 __attribute__((weak, alias("__ide_outb")));
533
534 unsigned char inline
__ide_inb(int dev,int port)535 __ide_inb(int dev, int port)
536 {
537 uchar val;
538 val = inb((ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)));
539 debug ("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
540 dev, port, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)), val);
541 return val;
542 }
543 unsigned char ide_inb(int dev, int port)
544 __attribute__((weak, alias("__ide_inb")));
545
546 #ifdef CONFIG_TUNE_PIO
547 int inline
__ide_set_piomode(int pio_mode)548 __ide_set_piomode(int pio_mode)
549 {
550 return 0;
551 }
552 int inline ide_set_piomode(int pio_mode)
553 __attribute__((weak, alias("__ide_set_piomode")));
554 #endif
555
ide_init(void)556 void ide_init (void)
557 {
558
559 #ifdef CONFIG_IDE_8xx_DIRECT
560 volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
561 volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
562 #endif
563 unsigned char c;
564 int i, bus;
565 #if defined(CONFIG_AMIGAONEG3SE) || defined(CONFIG_SC3)
566 unsigned int ata_reset_time = ATA_RESET_TIME;
567 char *s;
568 #endif
569 #ifdef CONFIG_AMIGAONEG3SE
570 unsigned int max_bus_scan;
571 #endif
572 #ifdef CONFIG_IDE_8xx_PCCARD
573 extern int pcmcia_on (void);
574 extern int ide_devices_found; /* Initialized in check_ide_device() */
575 #endif /* CONFIG_IDE_8xx_PCCARD */
576
577 #ifdef CONFIG_IDE_PREINIT
578 extern int ide_preinit (void);
579 WATCHDOG_RESET();
580
581 if (ide_preinit ()) {
582 puts ("ide_preinit failed\n");
583 return;
584 }
585 #endif /* CONFIG_IDE_PREINIT */
586
587 #ifdef CONFIG_IDE_8xx_PCCARD
588 extern int pcmcia_on (void);
589 extern int ide_devices_found; /* Initialized in check_ide_device() */
590
591 WATCHDOG_RESET();
592
593 ide_devices_found = 0;
594 /* initialize the PCMCIA IDE adapter card */
595 pcmcia_on();
596 if (!ide_devices_found)
597 return;
598 udelay (1000000); /* 1 s */
599 #endif /* CONFIG_IDE_8xx_PCCARD */
600
601 WATCHDOG_RESET();
602
603 #ifdef CONFIG_IDE_8xx_DIRECT
604 /* Initialize PIO timing tables */
605 for (i=0; i <= IDE_MAX_PIO_MODE; ++i) {
606 pio_config_clk[i].t_setup = PCMCIA_MK_CLKS(pio_config_ns[i].t_setup,
607 gd->bus_clk);
608 pio_config_clk[i].t_length = PCMCIA_MK_CLKS(pio_config_ns[i].t_length,
609 gd->bus_clk);
610 pio_config_clk[i].t_hold = PCMCIA_MK_CLKS(pio_config_ns[i].t_hold,
611 gd->bus_clk);
612 debug ( "PIO Mode %d: setup=%2d ns/%d clk"
613 " len=%3d ns/%d clk"
614 " hold=%2d ns/%d clk\n",
615 i,
616 pio_config_ns[i].t_setup, pio_config_clk[i].t_setup,
617 pio_config_ns[i].t_length, pio_config_clk[i].t_length,
618 pio_config_ns[i].t_hold, pio_config_clk[i].t_hold);
619 }
620 #endif /* CONFIG_IDE_8xx_DIRECT */
621
622 /* Reset the IDE just to be sure.
623 * Light LED's to show
624 */
625 ide_led ((LED_IDE1 | LED_IDE2), 1); /* LED's on */
626 ide_reset (); /* ATAPI Drives seems to need a proper IDE Reset */
627
628 #ifdef CONFIG_IDE_8xx_DIRECT
629 /* PCMCIA / IDE initialization for common mem space */
630 pcmp->pcmc_pgcrb = 0;
631
632 /* start in PIO mode 0 - most relaxed timings */
633 pio_mode = 0;
634 set_pcmcia_timing (pio_mode);
635 #endif /* CONFIG_IDE_8xx_DIRECT */
636
637 /*
638 * Wait for IDE to get ready.
639 * According to spec, this can take up to 31 seconds!
640 */
641 #ifndef CONFIG_AMIGAONEG3SE
642 for (bus=0; bus<CONFIG_SYS_IDE_MAXBUS; ++bus) {
643 int dev = bus * (CONFIG_SYS_IDE_MAXDEVICE / CONFIG_SYS_IDE_MAXBUS);
644 #else
645 s = getenv("ide_maxbus");
646 if (s)
647 max_bus_scan = simple_strtol(s, NULL, 10);
648 else
649 max_bus_scan = CONFIG_SYS_IDE_MAXBUS;
650
651 for (bus=0; bus<max_bus_scan; ++bus) {
652 int dev = bus * (CONFIG_SYS_IDE_MAXDEVICE / max_bus_scan);
653 #endif
654
655 #ifdef CONFIG_IDE_8xx_PCCARD
656 /* Skip non-ide devices from probing */
657 if ((ide_devices_found & (1 << bus)) == 0) {
658 ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
659 continue;
660 }
661 #endif
662 printf ("Bus %d: ", bus);
663
664 ide_bus_ok[bus] = 0;
665
666 /* Select device
667 */
668 udelay (100000); /* 100 ms */
669 ide_outb (dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
670 udelay (100000); /* 100 ms */
671 #if defined(CONFIG_AMIGAONEG3SE) || defined(CONFIG_SC3)
672 if ((s = getenv("ide_reset_timeout")) != NULL)
673 ata_reset_time = simple_strtol(s, NULL, 10);
674 #endif
675 i = 0;
676 do {
677 udelay (10000); /* 10 ms */
678
679 c = ide_inb (dev, ATA_STATUS);
680 i++;
681 #if defined(CONFIG_AMIGAONEG3SE) || defined(CONFIG_SC3)
682 if (i > (ata_reset_time * 100)) {
683 #else
684 if (i > (ATA_RESET_TIME * 100)) {
685 #endif
686 puts ("** Timeout **\n");
687 ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
688 #ifdef CONFIG_AMIGAONEG3SE
689 /* If this is the second bus, the first one was OK */
690 if (bus != 0) {
691 ide_bus_ok[bus] = 0;
692 goto skip_bus;
693 }
694 #endif
695 return;
696 }
697 if ((i >= 100) && ((i%100)==0)) {
698 putc ('.');
699 }
700 } while (c & ATA_STAT_BUSY);
701
702 if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) {
703 puts ("not available ");
704 debug ("Status = 0x%02X ", c);
705 #ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */
706 } else if ((c & ATA_STAT_READY) == 0) {
707 puts ("not available ");
708 debug ("Status = 0x%02X ", c);
709 #endif
710 } else {
711 puts ("OK ");
712 ide_bus_ok[bus] = 1;
713 }
714 WATCHDOG_RESET();
715 }
716
717 #ifdef CONFIG_AMIGAONEG3SE
718 skip_bus:
719 #endif
720 putc ('\n');
721
722 ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
723
724 curr_device = -1;
725 for (i=0; i<CONFIG_SYS_IDE_MAXDEVICE; ++i) {
726 #ifdef CONFIG_IDE_LED
727 int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2;
728 #endif
729 ide_dev_desc[i].type=DEV_TYPE_UNKNOWN;
730 ide_dev_desc[i].if_type=IF_TYPE_IDE;
731 ide_dev_desc[i].dev=i;
732 ide_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
733 ide_dev_desc[i].blksz=0;
734 ide_dev_desc[i].lba=0;
735 ide_dev_desc[i].block_read=ide_read;
736 if (!ide_bus_ok[IDE_BUS(i)])
737 continue;
738 ide_led (led, 1); /* LED on */
739 ide_ident(&ide_dev_desc[i]);
740 ide_led (led, 0); /* LED off */
741 dev_print(&ide_dev_desc[i]);
742 /* ide_print (i); */
743 if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) {
744 init_part (&ide_dev_desc[i]); /* initialize partition type */
745 if (curr_device < 0)
746 curr_device = i;
747 }
748 }
749 WATCHDOG_RESET();
750 }
751
752 /* ------------------------------------------------------------------------- */
753
754 block_dev_desc_t * ide_get_dev(int dev)
755 {
756 return (dev < CONFIG_SYS_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL;
757 }
758
759
760 #ifdef CONFIG_IDE_8xx_DIRECT
761
762 static void
763 set_pcmcia_timing (int pmode)
764 {
765 volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
766 volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
767 ulong timings;
768
769 debug ("Set timing for PIO Mode %d\n", pmode);
770
771 timings = PCMCIA_SHT(pio_config_clk[pmode].t_hold)
772 | PCMCIA_SST(pio_config_clk[pmode].t_setup)
773 | PCMCIA_SL (pio_config_clk[pmode].t_length)
774 ;
775
776 /* IDE 0
777 */
778 pcmp->pcmc_pbr0 = CONFIG_SYS_PCMCIA_PBR0;
779 pcmp->pcmc_por0 = CONFIG_SYS_PCMCIA_POR0
780 #if (CONFIG_SYS_PCMCIA_POR0 != 0)
781 | timings
782 #endif
783 ;
784 debug ("PBR0: %08x POR0: %08x\n", pcmp->pcmc_pbr0, pcmp->pcmc_por0);
785
786 pcmp->pcmc_pbr1 = CONFIG_SYS_PCMCIA_PBR1;
787 pcmp->pcmc_por1 = CONFIG_SYS_PCMCIA_POR1
788 #if (CONFIG_SYS_PCMCIA_POR1 != 0)
789 | timings
790 #endif
791 ;
792 debug ("PBR1: %08x POR1: %08x\n", pcmp->pcmc_pbr1, pcmp->pcmc_por1);
793
794 pcmp->pcmc_pbr2 = CONFIG_SYS_PCMCIA_PBR2;
795 pcmp->pcmc_por2 = CONFIG_SYS_PCMCIA_POR2
796 #if (CONFIG_SYS_PCMCIA_POR2 != 0)
797 | timings
798 #endif
799 ;
800 debug ("PBR2: %08x POR2: %08x\n", pcmp->pcmc_pbr2, pcmp->pcmc_por2);
801
802 pcmp->pcmc_pbr3 = CONFIG_SYS_PCMCIA_PBR3;
803 pcmp->pcmc_por3 = CONFIG_SYS_PCMCIA_POR3
804 #if (CONFIG_SYS_PCMCIA_POR3 != 0)
805 | timings
806 #endif
807 ;
808 debug ("PBR3: %08x POR3: %08x\n", pcmp->pcmc_pbr3, pcmp->pcmc_por3);
809
810 /* IDE 1
811 */
812 pcmp->pcmc_pbr4 = CONFIG_SYS_PCMCIA_PBR4;
813 pcmp->pcmc_por4 = CONFIG_SYS_PCMCIA_POR4
814 #if (CONFIG_SYS_PCMCIA_POR4 != 0)
815 | timings
816 #endif
817 ;
818 debug ("PBR4: %08x POR4: %08x\n", pcmp->pcmc_pbr4, pcmp->pcmc_por4);
819
820 pcmp->pcmc_pbr5 = CONFIG_SYS_PCMCIA_PBR5;
821 pcmp->pcmc_por5 = CONFIG_SYS_PCMCIA_POR5
822 #if (CONFIG_SYS_PCMCIA_POR5 != 0)
823 | timings
824 #endif
825 ;
826 debug ("PBR5: %08x POR5: %08x\n", pcmp->pcmc_pbr5, pcmp->pcmc_por5);
827
828 pcmp->pcmc_pbr6 = CONFIG_SYS_PCMCIA_PBR6;
829 pcmp->pcmc_por6 = CONFIG_SYS_PCMCIA_POR6
830 #if (CONFIG_SYS_PCMCIA_POR6 != 0)
831 | timings
832 #endif
833 ;
834 debug ("PBR6: %08x POR6: %08x\n", pcmp->pcmc_pbr6, pcmp->pcmc_por6);
835
836 pcmp->pcmc_pbr7 = CONFIG_SYS_PCMCIA_PBR7;
837 pcmp->pcmc_por7 = CONFIG_SYS_PCMCIA_POR7
838 #if (CONFIG_SYS_PCMCIA_POR7 != 0)
839 | timings
840 #endif
841 ;
842 debug ("PBR7: %08x POR7: %08x\n", pcmp->pcmc_pbr7, pcmp->pcmc_por7);
843
844 }
845
846 #endif /* CONFIG_IDE_8xx_DIRECT */
847
848 /* ------------------------------------------------------------------------- */
849
850 /* We only need to swap data if we are running on a big endian cpu. */
851 /* But Au1x00 cpu:s already swaps data in big endian mode! */
852 #if defined(__LITTLE_ENDIAN) || ( defined(CONFIG_AU1X00) && !defined(CONFIG_GTH2) )
853 #define input_swap_data(x,y,z) input_data(x,y,z)
854 #else
855 static void
856 input_swap_data(int dev, ulong *sect_buf, int words)
857 {
858 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
859 uchar i;
860 volatile uchar *pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
861 volatile uchar *pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
862 ushort *dbuf = (ushort *)sect_buf;
863
864 while (words--) {
865 for (i=0; i<2; i++) {
866 *(((uchar *)(dbuf)) + 1) = *pbuf_even;
867 *(uchar *)dbuf = *pbuf_odd;
868 dbuf+=1;
869 }
870 }
871 #else
872 volatile ushort *pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
873 ushort *dbuf = (ushort *)sect_buf;
874
875 debug("in input swap data base for read is %lx\n", (unsigned long) pbuf);
876
877 while (words--) {
878 #ifdef __MIPS__
879 *dbuf++ = swab16p((u16*)pbuf);
880 *dbuf++ = swab16p((u16*)pbuf);
881 #elif defined(CONFIG_PCS440EP)
882 *dbuf++ = *pbuf;
883 *dbuf++ = *pbuf;
884 #else
885 *dbuf++ = ld_le16(pbuf);
886 *dbuf++ = ld_le16(pbuf);
887 #endif /* !MIPS */
888 }
889 #endif
890 }
891 #endif /* __LITTLE_ENDIAN || CONFIG_AU1X00 */
892
893
894 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) || defined(CONFIG_SH)
895 static void
896 output_data(int dev, ulong *sect_buf, int words)
897 {
898 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
899 uchar *dbuf;
900 volatile uchar *pbuf_even;
901 volatile uchar *pbuf_odd;
902
903 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
904 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
905 dbuf = (uchar *)sect_buf;
906 while (words--) {
907 EIEIO;
908 *pbuf_even = *dbuf++;
909 EIEIO;
910 *pbuf_odd = *dbuf++;
911 EIEIO;
912 *pbuf_even = *dbuf++;
913 EIEIO;
914 *pbuf_odd = *dbuf++;
915 }
916 #else
917 ushort *dbuf;
918 volatile ushort *pbuf;
919
920 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
921 dbuf = (ushort *)sect_buf;
922 while (words--) {
923 #if defined(CONFIG_PCS440EP)
924 /* not tested, because CF was write protected */
925 EIEIO;
926 *pbuf = ld_le16(dbuf++);
927 EIEIO;
928 *pbuf = ld_le16(dbuf++);
929 #else
930 EIEIO;
931 *pbuf = *dbuf++;
932 EIEIO;
933 *pbuf = *dbuf++;
934 #endif
935 }
936 #endif
937 }
938 #else /* ! __PPC__ */
939 static void
940 output_data(int dev, ulong *sect_buf, int words)
941 {
942 outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words<<1);
943 }
944 #endif /* __PPC__ */
945
946 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) || defined(CONFIG_SH)
947 static void
948 input_data(int dev, ulong *sect_buf, int words)
949 {
950 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
951 uchar *dbuf;
952 volatile uchar *pbuf_even;
953 volatile uchar *pbuf_odd;
954
955 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
956 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
957 dbuf = (uchar *)sect_buf;
958 while (words--) {
959 *dbuf++ = *pbuf_even;
960 EIEIO;
961 SYNC;
962 *dbuf++ = *pbuf_odd;
963 EIEIO;
964 SYNC;
965 *dbuf++ = *pbuf_even;
966 EIEIO;
967 SYNC;
968 *dbuf++ = *pbuf_odd;
969 EIEIO;
970 SYNC;
971 }
972 #else
973 ushort *dbuf;
974 volatile ushort *pbuf;
975
976 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
977 dbuf = (ushort *)sect_buf;
978
979 debug("in input data base for read is %lx\n", (unsigned long) pbuf);
980
981 while (words--) {
982 #if defined(CONFIG_PCS440EP)
983 EIEIO;
984 *dbuf++ = ld_le16(pbuf);
985 EIEIO;
986 *dbuf++ = ld_le16(pbuf);
987 #else
988 EIEIO;
989 *dbuf++ = *pbuf;
990 EIEIO;
991 *dbuf++ = *pbuf;
992 #endif
993 }
994 #endif
995 }
996 #else /* ! __PPC__ */
997 static void
998 input_data(int dev, ulong *sect_buf, int words)
999 {
1000 insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1);
1001 }
1002
1003 #endif /* __PPC__ */
1004
1005 /* -------------------------------------------------------------------------
1006 */
1007 static void ide_ident (block_dev_desc_t *dev_desc)
1008 {
1009 ulong iobuf[ATA_SECTORWORDS];
1010 unsigned char c;
1011 hd_driveid_t *iop = (hd_driveid_t *)iobuf;
1012
1013 #ifdef CONFIG_AMIGAONEG3SE
1014 int max_bus_scan;
1015 char *s;
1016 #endif
1017 #ifdef CONFIG_ATAPI
1018 int retries = 0;
1019 int do_retry = 0;
1020 #endif
1021
1022 #ifdef CONFIG_TUNE_PIO
1023 int pio_mode;
1024 #endif
1025
1026 #if 0
1027 int mode, cycle_time;
1028 #endif
1029 int device;
1030 device=dev_desc->dev;
1031 printf (" Device %d: ", device);
1032
1033 #ifdef CONFIG_AMIGAONEG3SE
1034 s = getenv("ide_maxbus");
1035 if (s) {
1036 max_bus_scan = simple_strtol(s, NULL, 10);
1037 } else {
1038 max_bus_scan = CONFIG_SYS_IDE_MAXBUS;
1039 }
1040 if (device >= max_bus_scan*2) {
1041 dev_desc->type=DEV_TYPE_UNKNOWN;
1042 return;
1043 }
1044 #endif
1045
1046 ide_led (DEVICE_LED(device), 1); /* LED on */
1047 /* Select device
1048 */
1049 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1050 dev_desc->if_type=IF_TYPE_IDE;
1051 #ifdef CONFIG_ATAPI
1052
1053 do_retry = 0;
1054 retries = 0;
1055
1056 /* Warning: This will be tricky to read */
1057 while (retries <= 1) {
1058 /* check signature */
1059 if ((ide_inb(device,ATA_SECT_CNT) == 0x01) &&
1060 (ide_inb(device,ATA_SECT_NUM) == 0x01) &&
1061 (ide_inb(device,ATA_CYL_LOW) == 0x14) &&
1062 (ide_inb(device,ATA_CYL_HIGH) == 0xEB)) {
1063 /* ATAPI Signature found */
1064 dev_desc->if_type=IF_TYPE_ATAPI;
1065 /* Start Ident Command
1066 */
1067 ide_outb (device, ATA_COMMAND, ATAPI_CMD_IDENT);
1068 /*
1069 * Wait for completion - ATAPI devices need more time
1070 * to become ready
1071 */
1072 c = ide_wait (device, ATAPI_TIME_OUT);
1073 } else
1074 #endif
1075 {
1076 /* Start Ident Command
1077 */
1078 ide_outb (device, ATA_COMMAND, ATA_CMD_IDENT);
1079
1080 /* Wait for completion
1081 */
1082 c = ide_wait (device, IDE_TIME_OUT);
1083 }
1084 ide_led (DEVICE_LED(device), 0); /* LED off */
1085
1086 if (((c & ATA_STAT_DRQ) == 0) ||
1087 ((c & (ATA_STAT_FAULT|ATA_STAT_ERR)) != 0) ) {
1088 #ifdef CONFIG_ATAPI
1089 #ifdef CONFIG_AMIGAONEG3SE
1090 s = getenv("ide_doreset");
1091 if (s && strcmp(s, "on") == 0)
1092 #endif
1093 {
1094 /* Need to soft reset the device in case it's an ATAPI... */
1095 debug ("Retrying...\n");
1096 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1097 udelay(100000);
1098 ide_outb (device, ATA_COMMAND, 0x08);
1099 udelay (500000); /* 500 ms */
1100 }
1101 /* Select device
1102 */
1103 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1104 retries++;
1105 #else
1106 return;
1107 #endif
1108 }
1109 #ifdef CONFIG_ATAPI
1110 else
1111 break;
1112 } /* see above - ugly to read */
1113
1114 if (retries == 2) /* Not found */
1115 return;
1116 #endif
1117
1118 input_swap_data (device, iobuf, ATA_SECTORWORDS);
1119
1120 ident_cpy ((unsigned char*)dev_desc->revision, iop->fw_rev, sizeof(dev_desc->revision));
1121 ident_cpy ((unsigned char*)dev_desc->vendor, iop->model, sizeof(dev_desc->vendor));
1122 ident_cpy ((unsigned char*)dev_desc->product, iop->serial_no, sizeof(dev_desc->product));
1123 #ifdef __LITTLE_ENDIAN
1124 /*
1125 * firmware revision, model, and serial number have Big Endian Byte
1126 * order in Word. Convert all three to little endian.
1127 *
1128 * See CF+ and CompactFlash Specification Revision 2.0:
1129 * 6.2.1.6: Identify Drive, Table 39 for more details
1130 */
1131
1132 strswab (dev_desc->revision);
1133 strswab (dev_desc->vendor);
1134 strswab (dev_desc->product);
1135 #endif /* __LITTLE_ENDIAN */
1136
1137 if ((iop->config & 0x0080)==0x0080)
1138 dev_desc->removable = 1;
1139 else
1140 dev_desc->removable = 0;
1141
1142 #ifdef CONFIG_TUNE_PIO
1143 /* Mode 0 - 2 only, are directly determined by word 51. */
1144 pio_mode = iop->tPIO;
1145 if (pio_mode > 2) {
1146 printf("WARNING: Invalid PIO (word 51 = %d).\n", pio_mode);
1147 pio_mode = 0; /* Force it to dead slow, and hope for the best... */
1148 }
1149
1150 /* Any CompactFlash Storage Card that supports PIO mode 3 or above
1151 * shall set bit 1 of word 53 to one and support the fields contained
1152 * in words 64 through 70.
1153 */
1154 if (iop->field_valid & 0x02) {
1155 /* Mode 3 and above are possible. Check in order from slow
1156 * to fast, so we wind up with the highest mode allowed.
1157 */
1158 if (iop->eide_pio_modes & 0x01)
1159 pio_mode = 3;
1160 if (iop->eide_pio_modes & 0x02)
1161 pio_mode = 4;
1162 if (ata_id_is_cfa((u16 *)iop)) {
1163 if ((iop->cf_advanced_caps & 0x07) == 0x01)
1164 pio_mode = 5;
1165 if ((iop->cf_advanced_caps & 0x07) == 0x02)
1166 pio_mode = 6;
1167 }
1168 }
1169
1170 /* System-specific, depends on bus speeds, etc. */
1171 ide_set_piomode(pio_mode);
1172 #endif /* CONFIG_TUNE_PIO */
1173
1174 #if 0
1175 /*
1176 * Drive PIO mode autoselection
1177 */
1178 mode = iop->tPIO;
1179
1180 printf ("tPIO = 0x%02x = %d\n",mode, mode);
1181 if (mode > 2) { /* 2 is maximum allowed tPIO value */
1182 mode = 2;
1183 debug ("Override tPIO -> 2\n");
1184 }
1185 if (iop->field_valid & 2) { /* drive implements ATA2? */
1186 debug ("Drive implements ATA2\n");
1187 if (iop->capability & 8) { /* drive supports use_iordy? */
1188 cycle_time = iop->eide_pio_iordy;
1189 } else {
1190 cycle_time = iop->eide_pio;
1191 }
1192 debug ("cycle time = %d\n", cycle_time);
1193 mode = 4;
1194 if (cycle_time > 120) mode = 3; /* 120 ns for PIO mode 4 */
1195 if (cycle_time > 180) mode = 2; /* 180 ns for PIO mode 3 */
1196 if (cycle_time > 240) mode = 1; /* 240 ns for PIO mode 4 */
1197 if (cycle_time > 383) mode = 0; /* 383 ns for PIO mode 4 */
1198 }
1199 printf ("PIO mode to use: PIO %d\n", mode);
1200 #endif /* 0 */
1201
1202 #ifdef CONFIG_ATAPI
1203 if (dev_desc->if_type==IF_TYPE_ATAPI) {
1204 atapi_inquiry(dev_desc);
1205 return;
1206 }
1207 #endif /* CONFIG_ATAPI */
1208
1209 #ifdef __BIG_ENDIAN
1210 /* swap shorts */
1211 dev_desc->lba = (iop->lba_capacity << 16) | (iop->lba_capacity >> 16);
1212 #else /* ! __BIG_ENDIAN */
1213 /*
1214 * do not swap shorts on little endian
1215 *
1216 * See CF+ and CompactFlash Specification Revision 2.0:
1217 * 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
1218 */
1219 dev_desc->lba = iop->lba_capacity;
1220 #endif /* __BIG_ENDIAN */
1221
1222 #ifdef CONFIG_LBA48
1223 if (iop->command_set_2 & 0x0400) { /* LBA 48 support */
1224 dev_desc->lba48 = 1;
1225 dev_desc->lba = (unsigned long long)iop->lba48_capacity[0] |
1226 ((unsigned long long)iop->lba48_capacity[1] << 16) |
1227 ((unsigned long long)iop->lba48_capacity[2] << 32) |
1228 ((unsigned long long)iop->lba48_capacity[3] << 48);
1229 } else {
1230 dev_desc->lba48 = 0;
1231 }
1232 #endif /* CONFIG_LBA48 */
1233 /* assuming HD */
1234 dev_desc->type=DEV_TYPE_HARDDISK;
1235 dev_desc->blksz=ATA_BLOCKSIZE;
1236 dev_desc->lun=0; /* just to fill something in... */
1237
1238 #if 0 /* only used to test the powersaving mode,
1239 * if enabled, the drive goes after 5 sec
1240 * in standby mode */
1241 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1242 c = ide_wait (device, IDE_TIME_OUT);
1243 ide_outb (device, ATA_SECT_CNT, 1);
1244 ide_outb (device, ATA_LBA_LOW, 0);
1245 ide_outb (device, ATA_LBA_MID, 0);
1246 ide_outb (device, ATA_LBA_HIGH, 0);
1247 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1248 ide_outb (device, ATA_COMMAND, 0xe3);
1249 udelay (50);
1250 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1251 #endif
1252 }
1253
1254
1255 /* ------------------------------------------------------------------------- */
1256
1257 ulong ide_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer)
1258 {
1259 ulong n = 0;
1260 unsigned char c;
1261 unsigned char pwrsave=0; /* power save */
1262 #ifdef CONFIG_LBA48
1263 unsigned char lba48 = 0;
1264
1265 if (blknr & 0x0000fffff0000000ULL) {
1266 /* more than 28 bits used, use 48bit mode */
1267 lba48 = 1;
1268 }
1269 #endif
1270 debug ("ide_read dev %d start %LX, blocks %lX buffer at %lX\n",
1271 device, blknr, blkcnt, (ulong)buffer);
1272
1273 ide_led (DEVICE_LED(device), 1); /* LED on */
1274
1275 /* Select device
1276 */
1277 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1278 c = ide_wait (device, IDE_TIME_OUT);
1279
1280 if (c & ATA_STAT_BUSY) {
1281 printf ("IDE read: device %d not ready\n", device);
1282 goto IDE_READ_E;
1283 }
1284
1285 /* first check if the drive is in Powersaving mode, if yes,
1286 * increase the timeout value */
1287 ide_outb (device, ATA_COMMAND, ATA_CMD_CHK_PWR);
1288 udelay (50);
1289
1290 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1291
1292 if (c & ATA_STAT_BUSY) {
1293 printf ("IDE read: device %d not ready\n", device);
1294 goto IDE_READ_E;
1295 }
1296 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
1297 printf ("No Powersaving mode %X\n", c);
1298 } else {
1299 c = ide_inb(device,ATA_SECT_CNT);
1300 debug ("Powersaving %02X\n",c);
1301 if(c==0)
1302 pwrsave=1;
1303 }
1304
1305
1306 while (blkcnt-- > 0) {
1307
1308 c = ide_wait (device, IDE_TIME_OUT);
1309
1310 if (c & ATA_STAT_BUSY) {
1311 printf ("IDE read: device %d not ready\n", device);
1312 break;
1313 }
1314 #ifdef CONFIG_LBA48
1315 if (lba48) {
1316 /* write high bits */
1317 ide_outb (device, ATA_SECT_CNT, 0);
1318 ide_outb (device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
1319 #ifdef CONFIG_SYS_64BIT_LBA
1320 ide_outb (device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
1321 ide_outb (device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
1322 #else
1323 ide_outb (device, ATA_LBA_MID, 0);
1324 ide_outb (device, ATA_LBA_HIGH, 0);
1325 #endif
1326 }
1327 #endif
1328 ide_outb (device, ATA_SECT_CNT, 1);
1329 ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
1330 ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
1331 ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
1332
1333 #ifdef CONFIG_LBA48
1334 if (lba48) {
1335 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) );
1336 ide_outb (device, ATA_COMMAND, ATA_CMD_READ_EXT);
1337
1338 } else
1339 #endif
1340 {
1341 ide_outb (device, ATA_DEV_HD, ATA_LBA |
1342 ATA_DEVICE(device) |
1343 ((blknr >> 24) & 0xF) );
1344 ide_outb (device, ATA_COMMAND, ATA_CMD_READ);
1345 }
1346
1347 udelay (50);
1348
1349 if(pwrsave) {
1350 c = ide_wait (device, IDE_SPIN_UP_TIME_OUT); /* may take up to 4 sec */
1351 pwrsave=0;
1352 } else {
1353 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1354 }
1355
1356 if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) {
1357 #if defined(CONFIG_SYS_64BIT_LBA)
1358 printf ("Error (no IRQ) dev %d blk %Ld: status 0x%02x\n",
1359 device, blknr, c);
1360 #else
1361 printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n",
1362 device, (ulong)blknr, c);
1363 #endif
1364 break;
1365 }
1366
1367 input_data (device, buffer, ATA_SECTORWORDS);
1368 (void) ide_inb (device, ATA_STATUS); /* clear IRQ */
1369
1370 ++n;
1371 ++blknr;
1372 buffer += ATA_BLOCKSIZE;
1373 }
1374 IDE_READ_E:
1375 ide_led (DEVICE_LED(device), 0); /* LED off */
1376 return (n);
1377 }
1378
1379 /* ------------------------------------------------------------------------- */
1380
1381
1382 ulong ide_write (int device, lbaint_t blknr, ulong blkcnt, void *buffer)
1383 {
1384 ulong n = 0;
1385 unsigned char c;
1386 #ifdef CONFIG_LBA48
1387 unsigned char lba48 = 0;
1388
1389 if (blknr & 0x0000fffff0000000ULL) {
1390 /* more than 28 bits used, use 48bit mode */
1391 lba48 = 1;
1392 }
1393 #endif
1394
1395 ide_led (DEVICE_LED(device), 1); /* LED on */
1396
1397 /* Select device
1398 */
1399 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1400
1401 while (blkcnt-- > 0) {
1402
1403 c = ide_wait (device, IDE_TIME_OUT);
1404
1405 if (c & ATA_STAT_BUSY) {
1406 printf ("IDE read: device %d not ready\n", device);
1407 goto WR_OUT;
1408 }
1409 #ifdef CONFIG_LBA48
1410 if (lba48) {
1411 /* write high bits */
1412 ide_outb (device, ATA_SECT_CNT, 0);
1413 ide_outb (device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
1414 #ifdef CONFIG_SYS_64BIT_LBA
1415 ide_outb (device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
1416 ide_outb (device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
1417 #else
1418 ide_outb (device, ATA_LBA_MID, 0);
1419 ide_outb (device, ATA_LBA_HIGH, 0);
1420 #endif
1421 }
1422 #endif
1423 ide_outb (device, ATA_SECT_CNT, 1);
1424 ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
1425 ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
1426 ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
1427
1428 #ifdef CONFIG_LBA48
1429 if (lba48) {
1430 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) );
1431 ide_outb (device, ATA_COMMAND, ATA_CMD_WRITE_EXT);
1432
1433 } else
1434 #endif
1435 {
1436 ide_outb (device, ATA_DEV_HD, ATA_LBA |
1437 ATA_DEVICE(device) |
1438 ((blknr >> 24) & 0xF) );
1439 ide_outb (device, ATA_COMMAND, ATA_CMD_WRITE);
1440 }
1441
1442 udelay (50);
1443
1444 c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
1445
1446 if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) {
1447 #if defined(CONFIG_SYS_64BIT_LBA)
1448 printf ("Error (no IRQ) dev %d blk %Ld: status 0x%02x\n",
1449 device, blknr, c);
1450 #else
1451 printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n",
1452 device, (ulong)blknr, c);
1453 #endif
1454 goto WR_OUT;
1455 }
1456
1457 output_data (device, buffer, ATA_SECTORWORDS);
1458 c = ide_inb (device, ATA_STATUS); /* clear IRQ */
1459 ++n;
1460 ++blknr;
1461 buffer += ATA_BLOCKSIZE;
1462 }
1463 WR_OUT:
1464 ide_led (DEVICE_LED(device), 0); /* LED off */
1465 return (n);
1466 }
1467
1468 /* ------------------------------------------------------------------------- */
1469
1470 /*
1471 * copy src to dest, skipping leading and trailing blanks and null
1472 * terminate the string
1473 * "len" is the size of available memory including the terminating '\0'
1474 */
1475 static void ident_cpy (unsigned char *dst, unsigned char *src, unsigned int len)
1476 {
1477 unsigned char *end, *last;
1478
1479 last = dst;
1480 end = src + len - 1;
1481
1482 /* reserve space for '\0' */
1483 if (len < 2)
1484 goto OUT;
1485
1486 /* skip leading white space */
1487 while ((*src) && (src<end) && (*src==' '))
1488 ++src;
1489
1490 /* copy string, omitting trailing white space */
1491 while ((*src) && (src<end)) {
1492 *dst++ = *src;
1493 if (*src++ != ' ')
1494 last = dst;
1495 }
1496 OUT:
1497 *last = '\0';
1498 }
1499
1500 /* ------------------------------------------------------------------------- */
1501
1502 /*
1503 * Wait until Busy bit is off, or timeout (in ms)
1504 * Return last status
1505 */
1506 static uchar ide_wait (int dev, ulong t)
1507 {
1508 ulong delay = 10 * t; /* poll every 100 us */
1509 uchar c;
1510
1511 while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
1512 udelay (100);
1513 if (delay-- == 0) {
1514 break;
1515 }
1516 }
1517 return (c);
1518 }
1519
1520 /* ------------------------------------------------------------------------- */
1521
1522 #ifdef CONFIG_IDE_RESET
1523 extern void ide_set_reset(int idereset);
1524
1525 static void ide_reset (void)
1526 {
1527 #if defined(CONFIG_SYS_PB_12V_ENABLE) || defined(CONFIG_SYS_PB_IDE_MOTOR)
1528 volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
1529 #endif
1530 int i;
1531
1532 curr_device = -1;
1533 for (i=0; i<CONFIG_SYS_IDE_MAXBUS; ++i)
1534 ide_bus_ok[i] = 0;
1535 for (i=0; i<CONFIG_SYS_IDE_MAXDEVICE; ++i)
1536 ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
1537
1538 ide_set_reset (1); /* assert reset */
1539
1540 /* the reset signal shall be asserted for et least 25 us */
1541 udelay(25);
1542
1543 WATCHDOG_RESET();
1544
1545 #ifdef CONFIG_SYS_PB_12V_ENABLE
1546 immr->im_cpm.cp_pbdat &= ~(CONFIG_SYS_PB_12V_ENABLE); /* 12V Enable output OFF */
1547 immr->im_cpm.cp_pbpar &= ~(CONFIG_SYS_PB_12V_ENABLE);
1548 immr->im_cpm.cp_pbodr &= ~(CONFIG_SYS_PB_12V_ENABLE);
1549 immr->im_cpm.cp_pbdir |= CONFIG_SYS_PB_12V_ENABLE;
1550
1551 /* wait 500 ms for the voltage to stabilize
1552 */
1553 for (i=0; i<500; ++i) {
1554 udelay (1000);
1555 }
1556
1557 immr->im_cpm.cp_pbdat |= CONFIG_SYS_PB_12V_ENABLE; /* 12V Enable output ON */
1558 #endif /* CONFIG_SYS_PB_12V_ENABLE */
1559
1560 #ifdef CONFIG_SYS_PB_IDE_MOTOR
1561 /* configure IDE Motor voltage monitor pin as input */
1562 immr->im_cpm.cp_pbpar &= ~(CONFIG_SYS_PB_IDE_MOTOR);
1563 immr->im_cpm.cp_pbodr &= ~(CONFIG_SYS_PB_IDE_MOTOR);
1564 immr->im_cpm.cp_pbdir &= ~(CONFIG_SYS_PB_IDE_MOTOR);
1565
1566 /* wait up to 1 s for the motor voltage to stabilize
1567 */
1568 for (i=0; i<1000; ++i) {
1569 if ((immr->im_cpm.cp_pbdat & CONFIG_SYS_PB_IDE_MOTOR) != 0) {
1570 break;
1571 }
1572 udelay (1000);
1573 }
1574
1575 if (i == 1000) { /* Timeout */
1576 printf ("\nWarning: 5V for IDE Motor missing\n");
1577 # ifdef CONFIG_STATUS_LED
1578 # ifdef STATUS_LED_YELLOW
1579 status_led_set (STATUS_LED_YELLOW, STATUS_LED_ON );
1580 # endif
1581 # ifdef STATUS_LED_GREEN
1582 status_led_set (STATUS_LED_GREEN, STATUS_LED_OFF);
1583 # endif
1584 # endif /* CONFIG_STATUS_LED */
1585 }
1586 #endif /* CONFIG_SYS_PB_IDE_MOTOR */
1587
1588 WATCHDOG_RESET();
1589
1590 /* de-assert RESET signal */
1591 ide_set_reset(0);
1592
1593 /* wait 250 ms */
1594 for (i=0; i<250; ++i) {
1595 udelay (1000);
1596 }
1597 }
1598
1599 #endif /* CONFIG_IDE_RESET */
1600
1601 /* ------------------------------------------------------------------------- */
1602
1603 #if defined(CONFIG_IDE_LED) && \
1604 !defined(CONFIG_AMIGAONEG3SE)&& \
1605 !defined(CONFIG_CPC45) && \
1606 !defined(CONFIG_HMI10) && \
1607 !defined(CONFIG_KUP4K) && \
1608 !defined(CONFIG_KUP4X)
1609
1610 static uchar led_buffer = 0; /* Buffer for current LED status */
1611
1612 static void ide_led (uchar led, uchar status)
1613 {
1614 uchar *led_port = LED_PORT;
1615
1616 if (status) { /* switch LED on */
1617 led_buffer |= led;
1618 } else { /* switch LED off */
1619 led_buffer &= ~led;
1620 }
1621
1622 *led_port = led_buffer;
1623 }
1624
1625 #endif /* CONFIG_IDE_LED */
1626
1627 #if defined(CONFIG_OF_IDE_FIXUP)
1628 int ide_device_present(int dev)
1629 {
1630 if (dev >= CONFIG_SYS_IDE_MAXBUS)
1631 return 0;
1632 return (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1);
1633 }
1634 #endif
1635 /* ------------------------------------------------------------------------- */
1636
1637 #ifdef CONFIG_ATAPI
1638 /****************************************************************************
1639 * ATAPI Support
1640 */
1641
1642 #if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
1643 /* since ATAPI may use commands with not 4 bytes alligned length
1644 * we have our own transfer functions, 2 bytes alligned */
1645 static void
1646 output_data_shorts(int dev, ushort *sect_buf, int shorts)
1647 {
1648 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
1649 uchar *dbuf;
1650 volatile uchar *pbuf_even;
1651 volatile uchar *pbuf_odd;
1652
1653 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
1654 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
1655 while (shorts--) {
1656 EIEIO;
1657 *pbuf_even = *dbuf++;
1658 EIEIO;
1659 *pbuf_odd = *dbuf++;
1660 }
1661 #else
1662 ushort *dbuf;
1663 volatile ushort *pbuf;
1664
1665 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
1666 dbuf = (ushort *)sect_buf;
1667
1668 debug ("in output data shorts base for read is %lx\n", (unsigned long) pbuf);
1669
1670 while (shorts--) {
1671 EIEIO;
1672 *pbuf = *dbuf++;
1673 }
1674 #endif
1675 }
1676
1677 static void
1678 input_data_shorts(int dev, ushort *sect_buf, int shorts)
1679 {
1680 #if defined(CONFIG_HMI10) || defined(CONFIG_CPC45)
1681 uchar *dbuf;
1682 volatile uchar *pbuf_even;
1683 volatile uchar *pbuf_odd;
1684
1685 pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
1686 pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
1687 while (shorts--) {
1688 EIEIO;
1689 *dbuf++ = *pbuf_even;
1690 EIEIO;
1691 *dbuf++ = *pbuf_odd;
1692 }
1693 #else
1694 ushort *dbuf;
1695 volatile ushort *pbuf;
1696
1697 pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
1698 dbuf = (ushort *)sect_buf;
1699
1700 debug("in input data shorts base for read is %lx\n", (unsigned long) pbuf);
1701
1702 while (shorts--) {
1703 EIEIO;
1704 *dbuf++ = *pbuf;
1705 }
1706 #endif
1707 }
1708
1709 #else /* ! __PPC__ */
1710 static void
1711 output_data_shorts(int dev, ushort *sect_buf, int shorts)
1712 {
1713 outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
1714 }
1715
1716 static void
1717 input_data_shorts(int dev, ushort *sect_buf, int shorts)
1718 {
1719 insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
1720 }
1721
1722 #endif /* __PPC__ */
1723
1724 /*
1725 * Wait until (Status & mask) == res, or timeout (in ms)
1726 * Return last status
1727 * This is used since some ATAPI CD ROMs clears their Busy Bit first
1728 * and then they set their DRQ Bit
1729 */
1730 static uchar atapi_wait_mask (int dev, ulong t,uchar mask, uchar res)
1731 {
1732 ulong delay = 10 * t; /* poll every 100 us */
1733 uchar c;
1734
1735 c = ide_inb(dev,ATA_DEV_CTL); /* prevents to read the status before valid */
1736 while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) {
1737 /* break if error occurs (doesn't make sense to wait more) */
1738 if((c & ATA_STAT_ERR)==ATA_STAT_ERR)
1739 break;
1740 udelay (100);
1741 if (delay-- == 0) {
1742 break;
1743 }
1744 }
1745 return (c);
1746 }
1747
1748 /*
1749 * issue an atapi command
1750 */
1751 unsigned char atapi_issue(int device,unsigned char* ccb,int ccblen, unsigned char * buffer,int buflen)
1752 {
1753 unsigned char c,err,mask,res;
1754 int n;
1755 ide_led (DEVICE_LED(device), 1); /* LED on */
1756
1757 /* Select device
1758 */
1759 mask = ATA_STAT_BUSY|ATA_STAT_DRQ;
1760 res = 0;
1761 #ifdef CONFIG_AMIGAONEG3SE
1762 # warning THF: Removed LBA mode ???
1763 #endif
1764 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1765 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1766 if ((c & mask) != res) {
1767 printf ("ATAPI_ISSUE: device %d not ready status %X\n", device,c);
1768 err=0xFF;
1769 goto AI_OUT;
1770 }
1771 /* write taskfile */
1772 ide_outb (device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */
1773 ide_outb (device, ATA_SECT_CNT, 0);
1774 ide_outb (device, ATA_SECT_NUM, 0);
1775 ide_outb (device, ATA_CYL_LOW, (unsigned char)(buflen & 0xFF));
1776 ide_outb (device, ATA_CYL_HIGH, (unsigned char)((buflen>>8) & 0xFF));
1777 #ifdef CONFIG_AMIGAONEG3SE
1778 # warning THF: Removed LBA mode ???
1779 #endif
1780 ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1781
1782 ide_outb (device, ATA_COMMAND, ATAPI_CMD_PACKET);
1783 udelay (50);
1784
1785 mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR;
1786 res = ATA_STAT_DRQ;
1787 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1788
1789 if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */
1790 printf ("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n",device,c);
1791 err=0xFF;
1792 goto AI_OUT;
1793 }
1794
1795 output_data_shorts (device, (unsigned short *)ccb,ccblen/2); /* write command block */
1796 /* ATAPI Command written wait for completition */
1797 udelay (5000); /* device must set bsy */
1798
1799 mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR;
1800 /* if no data wait for DRQ = 0 BSY = 0
1801 * if data wait for DRQ = 1 BSY = 0 */
1802 res=0;
1803 if(buflen)
1804 res = ATA_STAT_DRQ;
1805 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1806 if ((c & mask) != res ) {
1807 if (c & ATA_STAT_ERR) {
1808 err=(ide_inb(device,ATA_ERROR_REG))>>4;
1809 debug ("atapi_issue 1 returned sense key %X status %02X\n",err,c);
1810 } else {
1811 printf ("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n", ccb[0],c);
1812 err=0xFF;
1813 }
1814 goto AI_OUT;
1815 }
1816 n=ide_inb(device, ATA_CYL_HIGH);
1817 n<<=8;
1818 n+=ide_inb(device, ATA_CYL_LOW);
1819 if(n>buflen) {
1820 printf("ERROR, transfer bytes %d requested only %d\n",n,buflen);
1821 err=0xff;
1822 goto AI_OUT;
1823 }
1824 if((n==0)&&(buflen<0)) {
1825 printf("ERROR, transfer bytes %d requested %d\n",n,buflen);
1826 err=0xff;
1827 goto AI_OUT;
1828 }
1829 if(n!=buflen) {
1830 debug ("WARNING, transfer bytes %d not equal with requested %d\n",n,buflen);
1831 }
1832 if(n!=0) { /* data transfer */
1833 debug ("ATAPI_ISSUE: %d Bytes to transfer\n",n);
1834 /* we transfer shorts */
1835 n>>=1;
1836 /* ok now decide if it is an in or output */
1837 if ((ide_inb(device, ATA_SECT_CNT)&0x02)==0) {
1838 debug ("Write to device\n");
1839 output_data_shorts(device,(unsigned short *)buffer,n);
1840 } else {
1841 debug ("Read from device @ %p shorts %d\n",buffer,n);
1842 input_data_shorts(device,(unsigned short *)buffer,n);
1843 }
1844 }
1845 udelay(5000); /* seems that some CD ROMs need this... */
1846 mask = ATA_STAT_BUSY|ATA_STAT_ERR;
1847 res=0;
1848 c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
1849 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
1850 err=(ide_inb(device,ATA_ERROR_REG) >> 4);
1851 debug ("atapi_issue 2 returned sense key %X status %X\n",err,c);
1852 } else {
1853 err = 0;
1854 }
1855 AI_OUT:
1856 ide_led (DEVICE_LED(device), 0); /* LED off */
1857 return (err);
1858 }
1859
1860 /*
1861 * sending the command to atapi_issue. If an status other than good
1862 * returns, an request_sense will be issued
1863 */
1864
1865 #define ATAPI_DRIVE_NOT_READY 100
1866 #define ATAPI_UNIT_ATTN 10
1867
1868 unsigned char atapi_issue_autoreq (int device,
1869 unsigned char* ccb,
1870 int ccblen,
1871 unsigned char *buffer,
1872 int buflen)
1873 {
1874 unsigned char sense_data[18],sense_ccb[12];
1875 unsigned char res,key,asc,ascq;
1876 int notready,unitattn;
1877
1878 #ifdef CONFIG_AMIGAONEG3SE
1879 char *s;
1880 unsigned int timeout, retrycnt;
1881
1882 s = getenv("ide_cd_timeout");
1883 timeout = s ? (simple_strtol(s, NULL, 10)*1000000)/5 : 0;
1884
1885 retrycnt = 0;
1886 #endif
1887
1888 unitattn=ATAPI_UNIT_ATTN;
1889 notready=ATAPI_DRIVE_NOT_READY;
1890
1891 retry:
1892 res= atapi_issue(device,ccb,ccblen,buffer,buflen);
1893 if (res==0)
1894 return (0); /* Ok */
1895
1896 if (res==0xFF)
1897 return (0xFF); /* error */
1898
1899 debug ("(auto_req)atapi_issue returned sense key %X\n",res);
1900
1901 memset(sense_ccb,0,sizeof(sense_ccb));
1902 memset(sense_data,0,sizeof(sense_data));
1903 sense_ccb[0]=ATAPI_CMD_REQ_SENSE;
1904 sense_ccb[4]=18; /* allocation Length */
1905
1906 res=atapi_issue(device,sense_ccb,12,sense_data,18);
1907 key=(sense_data[2]&0xF);
1908 asc=(sense_data[12]);
1909 ascq=(sense_data[13]);
1910
1911 debug ("ATAPI_CMD_REQ_SENSE returned %x\n",res);
1912 debug (" Sense page: %02X key %02X ASC %02X ASCQ %02X\n",
1913 sense_data[0],
1914 key,
1915 asc,
1916 ascq);
1917
1918 if((key==0))
1919 return 0; /* ok device ready */
1920
1921 if((key==6)|| (asc==0x29) || (asc==0x28)) { /* Unit Attention */
1922 if(unitattn-->0) {
1923 udelay(200*1000);
1924 goto retry;
1925 }
1926 printf("Unit Attention, tried %d\n",ATAPI_UNIT_ATTN);
1927 goto error;
1928 }
1929 if((asc==0x4) && (ascq==0x1)) { /* not ready, but will be ready soon */
1930 if (notready-->0) {
1931 udelay(200*1000);
1932 goto retry;
1933 }
1934 printf("Drive not ready, tried %d times\n",ATAPI_DRIVE_NOT_READY);
1935 goto error;
1936 }
1937 if(asc==0x3a) {
1938 debug ("Media not present\n");
1939 goto error;
1940 }
1941
1942 #ifdef CONFIG_AMIGAONEG3SE
1943 if ((sense_data[2]&0xF)==0x0B) {
1944 debug ("ABORTED COMMAND...retry\n");
1945 if (retrycnt++ < 4)
1946 goto retry;
1947 return (0xFF);
1948 }
1949
1950 if ((sense_data[2]&0xf) == 0x02 &&
1951 sense_data[12] == 0x04 &&
1952 sense_data[13] == 0x01 ) {
1953 debug ("Waiting for unit to become active\n");
1954 udelay(timeout);
1955 if (retrycnt++ < 4)
1956 goto retry;
1957 return 0xFF;
1958 }
1959 #endif /* CONFIG_AMIGAONEG3SE */
1960
1961 printf ("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq);
1962 error:
1963 debug ("ERROR Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq);
1964 return (0xFF);
1965 }
1966
1967
1968 static void atapi_inquiry(block_dev_desc_t * dev_desc)
1969 {
1970 unsigned char ccb[12]; /* Command descriptor block */
1971 unsigned char iobuf[64]; /* temp buf */
1972 unsigned char c;
1973 int device;
1974
1975 device=dev_desc->dev;
1976 dev_desc->type=DEV_TYPE_UNKNOWN; /* not yet valid */
1977 dev_desc->block_read=atapi_read;
1978
1979 memset(ccb,0,sizeof(ccb));
1980 memset(iobuf,0,sizeof(iobuf));
1981
1982 ccb[0]=ATAPI_CMD_INQUIRY;
1983 ccb[4]=40; /* allocation Legnth */
1984 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,40);
1985
1986 debug ("ATAPI_CMD_INQUIRY returned %x\n",c);
1987 if (c!=0)
1988 return;
1989
1990 /* copy device ident strings */
1991 ident_cpy((unsigned char*)dev_desc->vendor,&iobuf[8],8);
1992 ident_cpy((unsigned char*)dev_desc->product,&iobuf[16],16);
1993 ident_cpy((unsigned char*)dev_desc->revision,&iobuf[32],5);
1994
1995 dev_desc->lun=0;
1996 dev_desc->lba=0;
1997 dev_desc->blksz=0;
1998 dev_desc->type=iobuf[0] & 0x1f;
1999
2000 if ((iobuf[1]&0x80)==0x80)
2001 dev_desc->removable = 1;
2002 else
2003 dev_desc->removable = 0;
2004
2005 memset(ccb,0,sizeof(ccb));
2006 memset(iobuf,0,sizeof(iobuf));
2007 ccb[0]=ATAPI_CMD_START_STOP;
2008 ccb[4]=0x03; /* start */
2009
2010 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0);
2011
2012 debug ("ATAPI_CMD_START_STOP returned %x\n",c);
2013 if (c!=0)
2014 return;
2015
2016 memset(ccb,0,sizeof(ccb));
2017 memset(iobuf,0,sizeof(iobuf));
2018 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0);
2019
2020 debug ("ATAPI_CMD_UNIT_TEST_READY returned %x\n",c);
2021 if (c!=0)
2022 return;
2023
2024 memset(ccb,0,sizeof(ccb));
2025 memset(iobuf,0,sizeof(iobuf));
2026 ccb[0]=ATAPI_CMD_READ_CAP;
2027 c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,8);
2028 debug ("ATAPI_CMD_READ_CAP returned %x\n",c);
2029 if (c!=0)
2030 return;
2031
2032 debug ("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n",
2033 iobuf[0],iobuf[1],iobuf[2],iobuf[3],
2034 iobuf[4],iobuf[5],iobuf[6],iobuf[7]);
2035
2036 dev_desc->lba =((unsigned long)iobuf[0]<<24) +
2037 ((unsigned long)iobuf[1]<<16) +
2038 ((unsigned long)iobuf[2]<< 8) +
2039 ((unsigned long)iobuf[3]);
2040 dev_desc->blksz=((unsigned long)iobuf[4]<<24) +
2041 ((unsigned long)iobuf[5]<<16) +
2042 ((unsigned long)iobuf[6]<< 8) +
2043 ((unsigned long)iobuf[7]);
2044 #ifdef CONFIG_LBA48
2045 dev_desc->lba48 = 0; /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */
2046 #endif
2047 return;
2048 }
2049
2050
2051 /*
2052 * atapi_read:
2053 * we transfer only one block per command, since the multiple DRQ per
2054 * command is not yet implemented
2055 */
2056 #define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */
2057 #define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */
2058 #define ATAPI_READ_MAX_BLOCK ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE /* max blocks */
2059
2060 ulong atapi_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer)
2061 {
2062 ulong n = 0;
2063 unsigned char ccb[12]; /* Command descriptor block */
2064 ulong cnt;
2065
2066 debug ("atapi_read dev %d start %lX, blocks %lX buffer at %lX\n",
2067 device, blknr, blkcnt, (ulong)buffer);
2068
2069 do {
2070 if (blkcnt>ATAPI_READ_MAX_BLOCK) {
2071 cnt=ATAPI_READ_MAX_BLOCK;
2072 } else {
2073 cnt=blkcnt;
2074 }
2075 ccb[0]=ATAPI_CMD_READ_12;
2076 ccb[1]=0; /* reserved */
2077 ccb[2]=(unsigned char) (blknr>>24) & 0xFF; /* MSB Block */
2078 ccb[3]=(unsigned char) (blknr>>16) & 0xFF; /* */
2079 ccb[4]=(unsigned char) (blknr>> 8) & 0xFF;
2080 ccb[5]=(unsigned char) blknr & 0xFF; /* LSB Block */
2081 ccb[6]=(unsigned char) (cnt >>24) & 0xFF; /* MSB Block count */
2082 ccb[7]=(unsigned char) (cnt >>16) & 0xFF;
2083 ccb[8]=(unsigned char) (cnt >> 8) & 0xFF;
2084 ccb[9]=(unsigned char) cnt & 0xFF; /* LSB Block */
2085 ccb[10]=0; /* reserved */
2086 ccb[11]=0; /* reserved */
2087
2088 if (atapi_issue_autoreq(device,ccb,12,
2089 (unsigned char *)buffer,
2090 cnt*ATAPI_READ_BLOCK_SIZE) == 0xFF) {
2091 return (n);
2092 }
2093 n+=cnt;
2094 blkcnt-=cnt;
2095 blknr+=cnt;
2096 buffer+=(cnt*ATAPI_READ_BLOCK_SIZE);
2097 } while (blkcnt > 0);
2098 return (n);
2099 }
2100
2101 /* ------------------------------------------------------------------------- */
2102
2103 #endif /* CONFIG_ATAPI */
2104
2105 U_BOOT_CMD(
2106 ide, 5, 1, do_ide,
2107 "IDE sub-system",
2108 "reset - reset IDE controller\n"
2109 "ide info - show available IDE devices\n"
2110 "ide device [dev] - show or set current device\n"
2111 "ide part [dev] - print partition table of one or all IDE devices\n"
2112 "ide read addr blk# cnt\n"
2113 "ide write addr blk# cnt - read/write `cnt'"
2114 " blocks starting at block `blk#'\n"
2115 " to/from memory address `addr'"
2116 );
2117
2118 U_BOOT_CMD(
2119 diskboot, 3, 1, do_diskboot,
2120 "boot from IDE device",
2121 "loadAddr dev:part"
2122 );
2123