2 * (C) Copyright 2000-2011
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
34 #include <asm/byteorder.h>
37 #if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA)
44 #ifdef CONFIG_STATUS_LED
45 # include <status_led.h>
49 # define EIEIO __asm__ volatile ("eieio")
50 # define SYNC __asm__ volatile ("sync")
52 # define EIEIO /* nothing */
53 # define SYNC /* nothing */
56 /* ------------------------------------------------------------------------- */
58 /* Current I/O Device */
59 static int curr_device
= -1;
61 /* Current offset for IDE0 / IDE1 bus access */
62 ulong ide_bus_offset
[CONFIG_SYS_IDE_MAXBUS
] = {
63 #if defined(CONFIG_SYS_ATA_IDE0_OFFSET)
64 CONFIG_SYS_ATA_IDE0_OFFSET
,
66 #if defined(CONFIG_SYS_ATA_IDE1_OFFSET) && (CONFIG_SYS_IDE_MAXBUS > 1)
67 CONFIG_SYS_ATA_IDE1_OFFSET
,
71 static int ide_bus_ok
[CONFIG_SYS_IDE_MAXBUS
];
73 block_dev_desc_t ide_dev_desc
[CONFIG_SYS_IDE_MAXDEVICE
];
74 /* ------------------------------------------------------------------------- */
76 #ifdef CONFIG_IDE_RESET
77 static void ide_reset (void);
79 #define ide_reset() /* dummy */
82 static void ide_ident (block_dev_desc_t
*dev_desc
);
83 static uchar
ide_wait (int dev
, ulong t
);
85 #define IDE_TIME_OUT 2000 /* 2 sec timeout */
87 #define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */
89 #define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */
91 static void ident_cpy (unsigned char *dest
, unsigned char *src
, unsigned int len
);
93 #ifndef CONFIG_SYS_ATA_PORT_ADDR
94 #define CONFIG_SYS_ATA_PORT_ADDR(port) (port)
98 static void atapi_inquiry(block_dev_desc_t
*dev_desc
);
99 static ulong
atapi_read(int device
, ulong blknr
, lbaint_t blkcnt
,
104 /* ------------------------------------------------------------------------- */
106 int do_ide(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *const argv
[])
113 return CMD_RET_USAGE
;
115 if (strncmp(argv
[1], "res", 3) == 0) {
117 #ifdef CONFIG_IDE_8xx_DIRECT
118 " on PCMCIA " PCMCIA_SLOT_MSG
124 } else if (strncmp(argv
[1], "inf", 3) == 0) {
129 for (i
= 0; i
< CONFIG_SYS_IDE_MAXDEVICE
; ++i
) {
130 if (ide_dev_desc
[i
].type
== DEV_TYPE_UNKNOWN
)
131 continue; /* list only known devices */
132 printf("IDE device %d: ", i
);
133 dev_print(&ide_dev_desc
[i
]);
137 } else if (strncmp(argv
[1], "dev", 3) == 0) {
138 if ((curr_device
< 0)
139 || (curr_device
>= CONFIG_SYS_IDE_MAXDEVICE
)) {
140 puts("\nno IDE devices available\n");
143 printf("\nIDE device %d: ", curr_device
);
144 dev_print(&ide_dev_desc
[curr_device
]);
146 } else if (strncmp(argv
[1], "part", 4) == 0) {
149 for (ok
= 0, dev
= 0;
150 dev
< CONFIG_SYS_IDE_MAXDEVICE
;
152 if (ide_dev_desc
[dev
].part_type
!=
157 print_part(&ide_dev_desc
[dev
]);
161 puts("\nno IDE devices available\n");
166 return CMD_RET_USAGE
;
168 if (strncmp(argv
[1], "dev", 3) == 0) {
169 int dev
= (int) simple_strtoul(argv
[2], NULL
, 10);
171 printf("\nIDE device %d: ", dev
);
172 if (dev
>= CONFIG_SYS_IDE_MAXDEVICE
) {
173 puts("unknown device\n");
176 dev_print(&ide_dev_desc
[dev
]);
177 /*ide_print (dev); */
179 if (ide_dev_desc
[dev
].type
== DEV_TYPE_UNKNOWN
)
184 puts("... is now current device\n");
187 } else if (strncmp(argv
[1], "part", 4) == 0) {
188 int dev
= (int) simple_strtoul(argv
[2], NULL
, 10);
190 if (ide_dev_desc
[dev
].part_type
!= PART_TYPE_UNKNOWN
) {
191 print_part(&ide_dev_desc
[dev
]);
193 printf("\nIDE device %d not available\n",
200 return CMD_RET_USAGE
;
202 /* at least 4 args */
204 if (strcmp(argv
[1], "read") == 0) {
205 ulong addr
= simple_strtoul(argv
[2], NULL
, 16);
206 ulong cnt
= simple_strtoul(argv
[4], NULL
, 16);
209 #ifdef CONFIG_SYS_64BIT_LBA
210 lbaint_t blk
= simple_strtoull(argv
[3], NULL
, 16);
212 printf("\nIDE read: device %d block # %lld, count %ld ... ",
213 curr_device
, blk
, cnt
);
215 lbaint_t blk
= simple_strtoul(argv
[3], NULL
, 16);
217 printf("\nIDE read: device %d block # %ld, count %ld ... ",
218 curr_device
, blk
, cnt
);
221 n
= ide_dev_desc
[curr_device
].block_read(curr_device
,
224 /* flush cache after read */
226 cnt
* ide_dev_desc
[curr_device
].blksz
);
228 printf("%ld blocks read: %s\n",
229 n
, (n
== cnt
) ? "OK" : "ERROR");
234 } else if (strcmp(argv
[1], "write") == 0) {
235 ulong addr
= simple_strtoul(argv
[2], NULL
, 16);
236 ulong cnt
= simple_strtoul(argv
[4], NULL
, 16);
239 #ifdef CONFIG_SYS_64BIT_LBA
240 lbaint_t blk
= simple_strtoull(argv
[3], NULL
, 16);
242 printf("\nIDE write: device %d block # %lld, count %ld ... ",
243 curr_device
, blk
, cnt
);
245 lbaint_t blk
= simple_strtoul(argv
[3], NULL
, 16);
247 printf("\nIDE write: device %d block # %ld, count %ld ... ",
248 curr_device
, blk
, cnt
);
250 n
= ide_write(curr_device
, blk
, cnt
, (ulong
*) addr
);
252 printf("%ld blocks written: %s\n",
253 n
, (n
== cnt
) ? "OK" : "ERROR");
259 return CMD_RET_USAGE
;
266 int do_diskboot(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *const argv
[])
268 return common_diskboot(cmdtp
, "ide", argc
, argv
);
271 /* ------------------------------------------------------------------------- */
273 void __ide_led(uchar led
, uchar status
)
275 #if defined(CONFIG_IDE_LED) && defined(PER8_BASE) /* required by LED_PORT */
276 static uchar led_buffer
; /* Buffer for current LED status */
278 uchar
*led_port
= LED_PORT
;
280 if (status
) /* switch LED on */
282 else /* switch LED off */
285 *led_port
= led_buffer
;
289 void ide_led(uchar led
, uchar status
)
290 __attribute__ ((weak
, alias("__ide_led")));
292 #ifndef CONFIG_IDE_LED /* define LED macros, they are not used anyways */
293 # define DEVICE_LED(x) 0
298 /* ------------------------------------------------------------------------- */
300 inline void __ide_outb(int dev
, int port
, unsigned char val
)
302 debug("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
304 (ATA_CURR_BASE(dev
) + CONFIG_SYS_ATA_PORT_ADDR(port
)));
306 #if defined(CONFIG_IDE_AHB)
309 ide_write_register(dev
, port
, val
);
312 outb(val
, (ATA_CURR_BASE(dev
)));
315 outb(val
, (ATA_CURR_BASE(dev
) + CONFIG_SYS_ATA_PORT_ADDR(port
)));
319 void ide_outb(int dev
, int port
, unsigned char val
)
320 __attribute__ ((weak
, alias("__ide_outb")));
322 inline unsigned char __ide_inb(int dev
, int port
)
326 #if defined(CONFIG_IDE_AHB)
327 val
= ide_read_register(dev
, port
);
329 val
= inb((ATA_CURR_BASE(dev
) + CONFIG_SYS_ATA_PORT_ADDR(port
)));
332 debug("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
334 (ATA_CURR_BASE(dev
) + CONFIG_SYS_ATA_PORT_ADDR(port
)), val
);
338 unsigned char ide_inb(int dev
, int port
)
339 __attribute__ ((weak
, alias("__ide_inb")));
341 #ifdef CONFIG_TUNE_PIO
342 inline int __ide_set_piomode(int pio_mode
)
347 inline int ide_set_piomode(int pio_mode
)
348 __attribute__ ((weak
, alias("__ide_set_piomode")));
356 #ifdef CONFIG_IDE_8xx_PCCARD
357 extern int ide_devices_found
; /* Initialized in check_ide_device() */
358 #endif /* CONFIG_IDE_8xx_PCCARD */
360 #ifdef CONFIG_IDE_PREINIT
364 puts("ide_preinit failed\n");
367 #endif /* CONFIG_IDE_PREINIT */
372 * Reset the IDE just to be sure.
373 * Light LED's to show
375 ide_led((LED_IDE1
| LED_IDE2
), 1); /* LED's on */
377 /* ATAPI Drives seems to need a proper IDE Reset */
380 #ifdef CONFIG_IDE_INIT_POSTRESET
383 if (ide_init_postreset()) {
384 puts("ide_preinit_postreset failed\n");
387 #endif /* CONFIG_IDE_INIT_POSTRESET */
390 * Wait for IDE to get ready.
391 * According to spec, this can take up to 31 seconds!
393 for (bus
= 0; bus
< CONFIG_SYS_IDE_MAXBUS
; ++bus
) {
395 bus
* (CONFIG_SYS_IDE_MAXDEVICE
/
396 CONFIG_SYS_IDE_MAXBUS
);
398 #ifdef CONFIG_IDE_8xx_PCCARD
399 /* Skip non-ide devices from probing */
400 if ((ide_devices_found
& (1 << bus
)) == 0) {
401 ide_led((LED_IDE1
| LED_IDE2
), 0); /* LED's off */
405 printf("Bus %d: ", bus
);
411 udelay(100000); /* 100 ms */
412 ide_outb(dev
, ATA_DEV_HD
, ATA_LBA
| ATA_DEVICE(dev
));
413 udelay(100000); /* 100 ms */
416 udelay(10000); /* 10 ms */
418 c
= ide_inb(dev
, ATA_STATUS
);
420 if (i
> (ATA_RESET_TIME
* 100)) {
421 puts("** Timeout **\n");
423 ide_led((LED_IDE1
| LED_IDE2
), 0);
426 if ((i
>= 100) && ((i
% 100) == 0))
429 } while (c
& ATA_STAT_BUSY
);
431 if (c
& (ATA_STAT_BUSY
| ATA_STAT_FAULT
)) {
432 puts("not available ");
433 debug("Status = 0x%02X ", c
);
434 #ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */
435 } else if ((c
& ATA_STAT_READY
) == 0) {
436 puts("not available ");
437 debug("Status = 0x%02X ", c
);
448 ide_led((LED_IDE1
| LED_IDE2
), 0); /* LED's off */
451 for (i
= 0; i
< CONFIG_SYS_IDE_MAXDEVICE
; ++i
) {
452 int led
= (IDE_BUS(i
) == 0) ? LED_IDE1
: LED_IDE2
;
453 ide_dev_desc
[i
].type
= DEV_TYPE_UNKNOWN
;
454 ide_dev_desc
[i
].if_type
= IF_TYPE_IDE
;
455 ide_dev_desc
[i
].dev
= i
;
456 ide_dev_desc
[i
].part_type
= PART_TYPE_UNKNOWN
;
457 ide_dev_desc
[i
].blksz
= 0;
458 ide_dev_desc
[i
].log2blksz
=
459 LOG2_INVALID(typeof(ide_dev_desc
[i
].log2blksz
));
460 ide_dev_desc
[i
].lba
= 0;
461 ide_dev_desc
[i
].block_read
= ide_read
;
462 ide_dev_desc
[i
].block_write
= ide_write
;
463 if (!ide_bus_ok
[IDE_BUS(i
)])
465 ide_led(led
, 1); /* LED on */
466 ide_ident(&ide_dev_desc
[i
]);
467 ide_led(led
, 0); /* LED off */
468 dev_print(&ide_dev_desc
[i
]);
470 if ((ide_dev_desc
[i
].lba
> 0) && (ide_dev_desc
[i
].blksz
> 0)) {
471 /* initialize partition type */
472 init_part(&ide_dev_desc
[i
]);
480 /* ------------------------------------------------------------------------- */
482 #ifdef CONFIG_PARTITIONS
483 block_dev_desc_t
*ide_get_dev(int dev
)
485 return (dev
< CONFIG_SYS_IDE_MAXDEVICE
) ? &ide_dev_desc
[dev
] : NULL
;
489 /* ------------------------------------------------------------------------- */
491 void ide_input_swap_data(int dev
, ulong
*sect_buf
, int words
)
492 __attribute__ ((weak
, alias("__ide_input_swap_data")));
494 void ide_input_data(int dev
, ulong
*sect_buf
, int words
)
495 __attribute__ ((weak
, alias("__ide_input_data")));
497 void ide_output_data(int dev
, const ulong
*sect_buf
, int words
)
498 __attribute__ ((weak
, alias("__ide_output_data")));
500 /* We only need to swap data if we are running on a big endian cpu. */
501 #if defined(__LITTLE_ENDIAN)
502 void __ide_input_swap_data(int dev
, ulong
*sect_buf
, int words
)
504 ide_input_data(dev
, sect_buf
, words
);
507 void __ide_input_swap_data(int dev
, ulong
*sect_buf
, int words
)
509 volatile ushort
*pbuf
=
510 (ushort
*) (ATA_CURR_BASE(dev
) + ATA_DATA_REG
);
511 ushort
*dbuf
= (ushort
*) sect_buf
;
513 debug("in input swap data base for read is %lx\n",
514 (unsigned long) pbuf
);
518 *dbuf
++ = swab16p((u16
*) pbuf
);
519 *dbuf
++ = swab16p((u16
*) pbuf
);
521 *dbuf
++ = ld_le16(pbuf
);
522 *dbuf
++ = ld_le16(pbuf
);
526 #endif /* __LITTLE_ENDIAN */
529 #if defined(CONFIG_IDE_SWAP_IO)
530 void __ide_output_data(int dev
, const ulong
*sect_buf
, int words
)
533 volatile ushort
*pbuf
;
535 pbuf
= (ushort
*) (ATA_CURR_BASE(dev
) + ATA_DATA_REG
);
536 dbuf
= (ushort
*) sect_buf
;
544 #else /* ! CONFIG_IDE_SWAP_IO */
545 void __ide_output_data(int dev
, const ulong
*sect_buf
, int words
)
547 #if defined(CONFIG_IDE_AHB)
548 ide_write_data(dev
, sect_buf
, words
);
550 outsw(ATA_CURR_BASE(dev
) + ATA_DATA_REG
, sect_buf
, words
<< 1);
553 #endif /* CONFIG_IDE_SWAP_IO */
555 #if defined(CONFIG_IDE_SWAP_IO)
556 void __ide_input_data(int dev
, ulong
*sect_buf
, int words
)
559 volatile ushort
*pbuf
;
561 pbuf
= (ushort
*) (ATA_CURR_BASE(dev
) + ATA_DATA_REG
);
562 dbuf
= (ushort
*) sect_buf
;
564 debug("in input data base for read is %lx\n", (unsigned long) pbuf
);
573 #else /* ! CONFIG_IDE_SWAP_IO */
574 void __ide_input_data(int dev
, ulong
*sect_buf
, int words
)
576 #if defined(CONFIG_IDE_AHB)
577 ide_read_data(dev
, sect_buf
, words
);
579 insw(ATA_CURR_BASE(dev
) + ATA_DATA_REG
, sect_buf
, words
<< 1);
583 #endif /* CONFIG_IDE_SWAP_IO */
585 /* -------------------------------------------------------------------------
587 static void ide_ident(block_dev_desc_t
*dev_desc
)
596 #ifdef CONFIG_TUNE_PIO
601 int mode
, cycle_time
;
605 device
= dev_desc
->dev
;
606 printf(" Device %d: ", device
);
608 ide_led(DEVICE_LED(device
), 1); /* LED on */
611 ide_outb(device
, ATA_DEV_HD
, ATA_LBA
| ATA_DEVICE(device
));
612 dev_desc
->if_type
= IF_TYPE_IDE
;
617 /* Warning: This will be tricky to read */
618 while (retries
<= 1) {
619 /* check signature */
620 if ((ide_inb(device
, ATA_SECT_CNT
) == 0x01) &&
621 (ide_inb(device
, ATA_SECT_NUM
) == 0x01) &&
622 (ide_inb(device
, ATA_CYL_LOW
) == 0x14) &&
623 (ide_inb(device
, ATA_CYL_HIGH
) == 0xEB)) {
624 /* ATAPI Signature found */
625 dev_desc
->if_type
= IF_TYPE_ATAPI
;
627 * Start Ident Command
629 ide_outb(device
, ATA_COMMAND
, ATAPI_CMD_IDENT
);
631 * Wait for completion - ATAPI devices need more time
634 c
= ide_wait(device
, ATAPI_TIME_OUT
);
639 * Start Ident Command
641 ide_outb(device
, ATA_COMMAND
, ATA_CMD_IDENT
);
644 * Wait for completion
646 c
= ide_wait(device
, IDE_TIME_OUT
);
648 ide_led(DEVICE_LED(device
), 0); /* LED off */
650 if (((c
& ATA_STAT_DRQ
) == 0) ||
651 ((c
& (ATA_STAT_FAULT
| ATA_STAT_ERR
)) != 0)) {
655 * Need to soft reset the device
656 * in case it's an ATAPI...
658 debug("Retrying...\n");
659 ide_outb(device
, ATA_DEV_HD
,
660 ATA_LBA
| ATA_DEVICE(device
));
662 ide_outb(device
, ATA_COMMAND
, 0x08);
663 udelay(500000); /* 500 ms */
668 ide_outb(device
, ATA_DEV_HD
,
669 ATA_LBA
| ATA_DEVICE(device
));
678 } /* see above - ugly to read */
680 if (retries
== 2) /* Not found */
684 ide_input_swap_data(device
, (ulong
*)&iop
, ATA_SECTORWORDS
);
686 ident_cpy((unsigned char *) dev_desc
->revision
, iop
.fw_rev
,
687 sizeof(dev_desc
->revision
));
688 ident_cpy((unsigned char *) dev_desc
->vendor
, iop
.model
,
689 sizeof(dev_desc
->vendor
));
690 ident_cpy((unsigned char *) dev_desc
->product
, iop
.serial_no
,
691 sizeof(dev_desc
->product
));
692 #ifdef __LITTLE_ENDIAN
694 * firmware revision, model, and serial number have Big Endian Byte
695 * order in Word. Convert all three to little endian.
697 * See CF+ and CompactFlash Specification Revision 2.0:
698 * 6.2.1.6: Identify Drive, Table 39 for more details
701 strswab(dev_desc
->revision
);
702 strswab(dev_desc
->vendor
);
703 strswab(dev_desc
->product
);
704 #endif /* __LITTLE_ENDIAN */
706 if ((iop
.config
& 0x0080) == 0x0080)
707 dev_desc
->removable
= 1;
709 dev_desc
->removable
= 0;
711 #ifdef CONFIG_TUNE_PIO
712 /* Mode 0 - 2 only, are directly determined by word 51. */
715 printf("WARNING: Invalid PIO (word 51 = %d).\n", pio_mode
);
716 /* Force it to dead slow, and hope for the best... */
720 /* Any CompactFlash Storage Card that supports PIO mode 3 or above
721 * shall set bit 1 of word 53 to one and support the fields contained
722 * in words 64 through 70.
724 if (iop
.field_valid
& 0x02) {
726 * Mode 3 and above are possible. Check in order from slow
727 * to fast, so we wind up with the highest mode allowed.
729 if (iop
.eide_pio_modes
& 0x01)
731 if (iop
.eide_pio_modes
& 0x02)
733 if (ata_id_is_cfa((u16
*)&iop
)) {
734 if ((iop
.cf_advanced_caps
& 0x07) == 0x01)
736 if ((iop
.cf_advanced_caps
& 0x07) == 0x02)
741 /* System-specific, depends on bus speeds, etc. */
742 ide_set_piomode(pio_mode
);
743 #endif /* CONFIG_TUNE_PIO */
747 * Drive PIO mode autoselection
751 printf("tPIO = 0x%02x = %d\n", mode
, mode
);
752 if (mode
> 2) { /* 2 is maximum allowed tPIO value */
754 debug("Override tPIO -> 2\n");
756 if (iop
.field_valid
& 2) { /* drive implements ATA2? */
757 debug("Drive implements ATA2\n");
758 if (iop
.capability
& 8) { /* drive supports use_iordy? */
759 cycle_time
= iop
.eide_pio_iordy
;
761 cycle_time
= iop
.eide_pio
;
763 debug("cycle time = %d\n", cycle_time
);
765 if (cycle_time
> 120)
766 mode
= 3; /* 120 ns for PIO mode 4 */
767 if (cycle_time
> 180)
768 mode
= 2; /* 180 ns for PIO mode 3 */
769 if (cycle_time
> 240)
770 mode
= 1; /* 240 ns for PIO mode 4 */
771 if (cycle_time
> 383)
772 mode
= 0; /* 383 ns for PIO mode 4 */
774 printf("PIO mode to use: PIO %d\n", mode
);
778 if (dev_desc
->if_type
== IF_TYPE_ATAPI
) {
779 atapi_inquiry(dev_desc
);
782 #endif /* CONFIG_ATAPI */
786 dev_desc
->lba
= (iop
.lba_capacity
<< 16) | (iop
.lba_capacity
>> 16);
787 #else /* ! __BIG_ENDIAN */
789 * do not swap shorts on little endian
791 * See CF+ and CompactFlash Specification Revision 2.0:
792 * 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
794 dev_desc
->lba
= iop
.lba_capacity
;
795 #endif /* __BIG_ENDIAN */
798 if (iop
.command_set_2
& 0x0400) { /* LBA 48 support */
800 dev_desc
->lba
= (unsigned long long) iop
.lba48_capacity
[0] |
801 ((unsigned long long) iop
.lba48_capacity
[1] << 16) |
802 ((unsigned long long) iop
.lba48_capacity
[2] << 32) |
803 ((unsigned long long) iop
.lba48_capacity
[3] << 48);
807 #endif /* CONFIG_LBA48 */
809 dev_desc
->type
= DEV_TYPE_HARDDISK
;
810 dev_desc
->blksz
= ATA_BLOCKSIZE
;
811 dev_desc
->log2blksz
= LOG2(dev_desc
->blksz
);
812 dev_desc
->lun
= 0; /* just to fill something in... */
814 #if 0 /* only used to test the powersaving mode,
815 * if enabled, the drive goes after 5 sec
817 ide_outb(device
, ATA_DEV_HD
, ATA_LBA
| ATA_DEVICE(device
));
818 c
= ide_wait(device
, IDE_TIME_OUT
);
819 ide_outb(device
, ATA_SECT_CNT
, 1);
820 ide_outb(device
, ATA_LBA_LOW
, 0);
821 ide_outb(device
, ATA_LBA_MID
, 0);
822 ide_outb(device
, ATA_LBA_HIGH
, 0);
823 ide_outb(device
, ATA_DEV_HD
, ATA_LBA
| ATA_DEVICE(device
));
824 ide_outb(device
, ATA_COMMAND
, 0xe3);
826 c
= ide_wait(device
, IDE_TIME_OUT
); /* can't take over 500 ms */
831 /* ------------------------------------------------------------------------- */
833 ulong
ide_read(int device
, ulong blknr
, lbaint_t blkcnt
, void *buffer
)
837 unsigned char pwrsave
= 0; /* power save */
840 unsigned char lba48
= 0;
842 if (blknr
& 0x0000fffff0000000ULL
) {
843 /* more than 28 bits used, use 48bit mode */
847 debug("ide_read dev %d start %lX, blocks " LBAF
" buffer at %lX\n",
848 device
, blknr
, blkcnt
, (ulong
) buffer
);
850 ide_led(DEVICE_LED(device
), 1); /* LED on */
854 ide_outb(device
, ATA_DEV_HD
, ATA_LBA
| ATA_DEVICE(device
));
855 c
= ide_wait(device
, IDE_TIME_OUT
);
857 if (c
& ATA_STAT_BUSY
) {
858 printf("IDE read: device %d not ready\n", device
);
862 /* first check if the drive is in Powersaving mode, if yes,
863 * increase the timeout value */
864 ide_outb(device
, ATA_COMMAND
, ATA_CMD_CHK_PWR
);
867 c
= ide_wait(device
, IDE_TIME_OUT
); /* can't take over 500 ms */
869 if (c
& ATA_STAT_BUSY
) {
870 printf("IDE read: device %d not ready\n", device
);
873 if ((c
& ATA_STAT_ERR
) == ATA_STAT_ERR
) {
874 printf("No Powersaving mode %X\n", c
);
876 c
= ide_inb(device
, ATA_SECT_CNT
);
877 debug("Powersaving %02X\n", c
);
883 while (blkcnt
-- > 0) {
885 c
= ide_wait(device
, IDE_TIME_OUT
);
887 if (c
& ATA_STAT_BUSY
) {
888 printf("IDE read: device %d not ready\n", device
);
893 /* write high bits */
894 ide_outb(device
, ATA_SECT_CNT
, 0);
895 ide_outb(device
, ATA_LBA_LOW
, (blknr
>> 24) & 0xFF);
896 #ifdef CONFIG_SYS_64BIT_LBA
897 ide_outb(device
, ATA_LBA_MID
, (blknr
>> 32) & 0xFF);
898 ide_outb(device
, ATA_LBA_HIGH
, (blknr
>> 40) & 0xFF);
900 ide_outb(device
, ATA_LBA_MID
, 0);
901 ide_outb(device
, ATA_LBA_HIGH
, 0);
905 ide_outb(device
, ATA_SECT_CNT
, 1);
906 ide_outb(device
, ATA_LBA_LOW
, (blknr
>> 0) & 0xFF);
907 ide_outb(device
, ATA_LBA_MID
, (blknr
>> 8) & 0xFF);
908 ide_outb(device
, ATA_LBA_HIGH
, (blknr
>> 16) & 0xFF);
912 ide_outb(device
, ATA_DEV_HD
,
913 ATA_LBA
| ATA_DEVICE(device
));
914 ide_outb(device
, ATA_COMMAND
, ATA_CMD_READ_EXT
);
919 ide_outb(device
, ATA_DEV_HD
, ATA_LBA
|
920 ATA_DEVICE(device
) | ((blknr
>> 24) & 0xF));
921 ide_outb(device
, ATA_COMMAND
, ATA_CMD_READ
);
927 /* may take up to 4 sec */
928 c
= ide_wait(device
, IDE_SPIN_UP_TIME_OUT
);
931 /* can't take over 500 ms */
932 c
= ide_wait(device
, IDE_TIME_OUT
);
935 if ((c
& (ATA_STAT_DRQ
| ATA_STAT_BUSY
| ATA_STAT_ERR
)) !=
937 printf("Error (no IRQ) dev %d blk %ld: status %#02x\n",
942 ide_input_data(device
, buffer
, ATA_SECTORWORDS
);
943 (void) ide_inb(device
, ATA_STATUS
); /* clear IRQ */
947 buffer
+= ATA_BLOCKSIZE
;
950 ide_led(DEVICE_LED(device
), 0); /* LED off */
954 /* ------------------------------------------------------------------------- */
957 ulong
ide_write(int device
, ulong blknr
, lbaint_t blkcnt
, const void *buffer
)
963 unsigned char lba48
= 0;
965 if (blknr
& 0x0000fffff0000000ULL
) {
966 /* more than 28 bits used, use 48bit mode */
971 ide_led(DEVICE_LED(device
), 1); /* LED on */
975 ide_outb(device
, ATA_DEV_HD
, ATA_LBA
| ATA_DEVICE(device
));
977 while (blkcnt
-- > 0) {
979 c
= ide_wait(device
, IDE_TIME_OUT
);
981 if (c
& ATA_STAT_BUSY
) {
982 printf("IDE read: device %d not ready\n", device
);
987 /* write high bits */
988 ide_outb(device
, ATA_SECT_CNT
, 0);
989 ide_outb(device
, ATA_LBA_LOW
, (blknr
>> 24) & 0xFF);
990 #ifdef CONFIG_SYS_64BIT_LBA
991 ide_outb(device
, ATA_LBA_MID
, (blknr
>> 32) & 0xFF);
992 ide_outb(device
, ATA_LBA_HIGH
, (blknr
>> 40) & 0xFF);
994 ide_outb(device
, ATA_LBA_MID
, 0);
995 ide_outb(device
, ATA_LBA_HIGH
, 0);
999 ide_outb(device
, ATA_SECT_CNT
, 1);
1000 ide_outb(device
, ATA_LBA_LOW
, (blknr
>> 0) & 0xFF);
1001 ide_outb(device
, ATA_LBA_MID
, (blknr
>> 8) & 0xFF);
1002 ide_outb(device
, ATA_LBA_HIGH
, (blknr
>> 16) & 0xFF);
1006 ide_outb(device
, ATA_DEV_HD
,
1007 ATA_LBA
| ATA_DEVICE(device
));
1008 ide_outb(device
, ATA_COMMAND
, ATA_CMD_WRITE_EXT
);
1013 ide_outb(device
, ATA_DEV_HD
, ATA_LBA
|
1014 ATA_DEVICE(device
) | ((blknr
>> 24) & 0xF));
1015 ide_outb(device
, ATA_COMMAND
, ATA_CMD_WRITE
);
1020 /* can't take over 500 ms */
1021 c
= ide_wait(device
, IDE_TIME_OUT
);
1023 if ((c
& (ATA_STAT_DRQ
| ATA_STAT_BUSY
| ATA_STAT_ERR
)) !=
1025 printf("Error (no IRQ) dev %d blk %ld: status %#02x\n",
1030 ide_output_data(device
, buffer
, ATA_SECTORWORDS
);
1031 c
= ide_inb(device
, ATA_STATUS
); /* clear IRQ */
1034 buffer
+= ATA_BLOCKSIZE
;
1037 ide_led(DEVICE_LED(device
), 0); /* LED off */
1041 /* ------------------------------------------------------------------------- */
1044 * copy src to dest, skipping leading and trailing blanks and null
1045 * terminate the string
1046 * "len" is the size of available memory including the terminating '\0'
1048 static void ident_cpy(unsigned char *dst
, unsigned char *src
,
1051 unsigned char *end
, *last
;
1054 end
= src
+ len
- 1;
1056 /* reserve space for '\0' */
1060 /* skip leading white space */
1061 while ((*src
) && (src
< end
) && (*src
== ' '))
1064 /* copy string, omitting trailing white space */
1065 while ((*src
) && (src
< end
)) {
1074 /* ------------------------------------------------------------------------- */
1077 * Wait until Busy bit is off, or timeout (in ms)
1078 * Return last status
1080 static uchar
ide_wait(int dev
, ulong t
)
1082 ulong delay
= 10 * t
; /* poll every 100 us */
1085 while ((c
= ide_inb(dev
, ATA_STATUS
)) & ATA_STAT_BUSY
) {
1093 /* ------------------------------------------------------------------------- */
1095 #ifdef CONFIG_IDE_RESET
1096 extern void ide_set_reset(int idereset
);
1098 static void ide_reset(void)
1103 for (i
= 0; i
< CONFIG_SYS_IDE_MAXBUS
; ++i
)
1105 for (i
= 0; i
< CONFIG_SYS_IDE_MAXDEVICE
; ++i
)
1106 ide_dev_desc
[i
].type
= DEV_TYPE_UNKNOWN
;
1108 ide_set_reset(1); /* assert reset */
1110 /* the reset signal shall be asserted for et least 25 us */
1115 /* de-assert RESET signal */
1119 for (i
= 0; i
< 250; ++i
)
1123 #endif /* CONFIG_IDE_RESET */
1125 /* ------------------------------------------------------------------------- */
1127 #if defined(CONFIG_OF_IDE_FIXUP)
1128 int ide_device_present(int dev
)
1130 if (dev
>= CONFIG_SYS_IDE_MAXBUS
)
1132 return (ide_dev_desc
[dev
].type
== DEV_TYPE_UNKNOWN
? 0 : 1);
1135 /* ------------------------------------------------------------------------- */
1138 /****************************************************************************
1142 void ide_input_data_shorts(int dev
, ushort
*sect_buf
, int shorts
)
1143 __attribute__ ((weak
, alias("__ide_input_data_shorts")));
1145 void ide_output_data_shorts(int dev
, ushort
*sect_buf
, int shorts
)
1146 __attribute__ ((weak
, alias("__ide_output_data_shorts")));
1149 #if defined(CONFIG_IDE_SWAP_IO)
1150 /* since ATAPI may use commands with not 4 bytes alligned length
1151 * we have our own transfer functions, 2 bytes alligned */
1152 void __ide_output_data_shorts(int dev
, ushort
*sect_buf
, int shorts
)
1155 volatile ushort
*pbuf
;
1157 pbuf
= (ushort
*) (ATA_CURR_BASE(dev
) + ATA_DATA_REG
);
1158 dbuf
= (ushort
*) sect_buf
;
1160 debug("in output data shorts base for read is %lx\n",
1161 (unsigned long) pbuf
);
1169 void __ide_input_data_shorts(int dev
, ushort
*sect_buf
, int shorts
)
1172 volatile ushort
*pbuf
;
1174 pbuf
= (ushort
*) (ATA_CURR_BASE(dev
) + ATA_DATA_REG
);
1175 dbuf
= (ushort
*) sect_buf
;
1177 debug("in input data shorts base for read is %lx\n",
1178 (unsigned long) pbuf
);
1186 #else /* ! CONFIG_IDE_SWAP_IO */
1187 void __ide_output_data_shorts(int dev
, ushort
*sect_buf
, int shorts
)
1189 outsw(ATA_CURR_BASE(dev
) + ATA_DATA_REG
, sect_buf
, shorts
);
1192 void __ide_input_data_shorts(int dev
, ushort
*sect_buf
, int shorts
)
1194 insw(ATA_CURR_BASE(dev
) + ATA_DATA_REG
, sect_buf
, shorts
);
1197 #endif /* CONFIG_IDE_SWAP_IO */
1200 * Wait until (Status & mask) == res, or timeout (in ms)
1201 * Return last status
1202 * This is used since some ATAPI CD ROMs clears their Busy Bit first
1203 * and then they set their DRQ Bit
1205 static uchar
atapi_wait_mask(int dev
, ulong t
, uchar mask
, uchar res
)
1207 ulong delay
= 10 * t
; /* poll every 100 us */
1210 /* prevents to read the status before valid */
1211 c
= ide_inb(dev
, ATA_DEV_CTL
);
1213 while (((c
= ide_inb(dev
, ATA_STATUS
)) & mask
) != res
) {
1214 /* break if error occurs (doesn't make sense to wait more) */
1215 if ((c
& ATA_STAT_ERR
) == ATA_STAT_ERR
)
1225 * issue an atapi command
1227 unsigned char atapi_issue(int device
, unsigned char *ccb
, int ccblen
,
1228 unsigned char *buffer
, int buflen
)
1230 unsigned char c
, err
, mask
, res
;
1233 ide_led(DEVICE_LED(device
), 1); /* LED on */
1237 mask
= ATA_STAT_BUSY
| ATA_STAT_DRQ
;
1239 ide_outb(device
, ATA_DEV_HD
, ATA_LBA
| ATA_DEVICE(device
));
1240 c
= atapi_wait_mask(device
, ATAPI_TIME_OUT
, mask
, res
);
1241 if ((c
& mask
) != res
) {
1242 printf("ATAPI_ISSUE: device %d not ready status %X\n", device
,
1247 /* write taskfile */
1248 ide_outb(device
, ATA_ERROR_REG
, 0); /* no DMA, no overlaped */
1249 ide_outb(device
, ATA_SECT_CNT
, 0);
1250 ide_outb(device
, ATA_SECT_NUM
, 0);
1251 ide_outb(device
, ATA_CYL_LOW
, (unsigned char) (buflen
& 0xFF));
1252 ide_outb(device
, ATA_CYL_HIGH
,
1253 (unsigned char) ((buflen
>> 8) & 0xFF));
1254 ide_outb(device
, ATA_DEV_HD
, ATA_LBA
| ATA_DEVICE(device
));
1256 ide_outb(device
, ATA_COMMAND
, ATAPI_CMD_PACKET
);
1259 mask
= ATA_STAT_DRQ
| ATA_STAT_BUSY
| ATA_STAT_ERR
;
1261 c
= atapi_wait_mask(device
, ATAPI_TIME_OUT
, mask
, res
);
1263 if ((c
& mask
) != res
) { /* DRQ must be 1, BSY 0 */
1264 printf("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n",
1270 /* write command block */
1271 ide_output_data_shorts(device
, (unsigned short *) ccb
, ccblen
/ 2);
1273 /* ATAPI Command written wait for completition */
1274 udelay(5000); /* device must set bsy */
1276 mask
= ATA_STAT_DRQ
| ATA_STAT_BUSY
| ATA_STAT_ERR
;
1278 * if no data wait for DRQ = 0 BSY = 0
1279 * if data wait for DRQ = 1 BSY = 0
1284 c
= atapi_wait_mask(device
, ATAPI_TIME_OUT
, mask
, res
);
1285 if ((c
& mask
) != res
) {
1286 if (c
& ATA_STAT_ERR
) {
1287 err
= (ide_inb(device
, ATA_ERROR_REG
)) >> 4;
1288 debug("atapi_issue 1 returned sense key %X status %02X\n",
1291 printf("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n",
1297 n
= ide_inb(device
, ATA_CYL_HIGH
);
1299 n
+= ide_inb(device
, ATA_CYL_LOW
);
1301 printf("ERROR, transfer bytes %d requested only %d\n", n
,
1306 if ((n
== 0) && (buflen
< 0)) {
1307 printf("ERROR, transfer bytes %d requested %d\n", n
, buflen
);
1312 debug("WARNING, transfer bytes %d not equal with requested %d\n",
1315 if (n
!= 0) { /* data transfer */
1316 debug("ATAPI_ISSUE: %d Bytes to transfer\n", n
);
1317 /* we transfer shorts */
1319 /* ok now decide if it is an in or output */
1320 if ((ide_inb(device
, ATA_SECT_CNT
) & 0x02) == 0) {
1321 debug("Write to device\n");
1322 ide_output_data_shorts(device
,
1323 (unsigned short *) buffer
, n
);
1325 debug("Read from device @ %p shorts %d\n", buffer
, n
);
1326 ide_input_data_shorts(device
,
1327 (unsigned short *) buffer
, n
);
1330 udelay(5000); /* seems that some CD ROMs need this... */
1331 mask
= ATA_STAT_BUSY
| ATA_STAT_ERR
;
1333 c
= atapi_wait_mask(device
, ATAPI_TIME_OUT
, mask
, res
);
1334 if ((c
& ATA_STAT_ERR
) == ATA_STAT_ERR
) {
1335 err
= (ide_inb(device
, ATA_ERROR_REG
) >> 4);
1336 debug("atapi_issue 2 returned sense key %X status %X\n", err
,
1342 ide_led(DEVICE_LED(device
), 0); /* LED off */
1347 * sending the command to atapi_issue. If an status other than good
1348 * returns, an request_sense will be issued
1351 #define ATAPI_DRIVE_NOT_READY 100
1352 #define ATAPI_UNIT_ATTN 10
1354 unsigned char atapi_issue_autoreq(int device
,
1357 unsigned char *buffer
, int buflen
)
1359 unsigned char sense_data
[18], sense_ccb
[12];
1360 unsigned char res
, key
, asc
, ascq
;
1361 int notready
, unitattn
;
1363 unitattn
= ATAPI_UNIT_ATTN
;
1364 notready
= ATAPI_DRIVE_NOT_READY
;
1367 res
= atapi_issue(device
, ccb
, ccblen
, buffer
, buflen
);
1372 return 0xFF; /* error */
1374 debug("(auto_req)atapi_issue returned sense key %X\n", res
);
1376 memset(sense_ccb
, 0, sizeof(sense_ccb
));
1377 memset(sense_data
, 0, sizeof(sense_data
));
1378 sense_ccb
[0] = ATAPI_CMD_REQ_SENSE
;
1379 sense_ccb
[4] = 18; /* allocation Length */
1381 res
= atapi_issue(device
, sense_ccb
, 12, sense_data
, 18);
1382 key
= (sense_data
[2] & 0xF);
1383 asc
= (sense_data
[12]);
1384 ascq
= (sense_data
[13]);
1386 debug("ATAPI_CMD_REQ_SENSE returned %x\n", res
);
1387 debug(" Sense page: %02X key %02X ASC %02X ASCQ %02X\n",
1388 sense_data
[0], key
, asc
, ascq
);
1391 return 0; /* ok device ready */
1393 if ((key
== 6) || (asc
== 0x29) || (asc
== 0x28)) { /* Unit Attention */
1394 if (unitattn
-- > 0) {
1398 printf("Unit Attention, tried %d\n", ATAPI_UNIT_ATTN
);
1401 if ((asc
== 0x4) && (ascq
== 0x1)) {
1402 /* not ready, but will be ready soon */
1403 if (notready
-- > 0) {
1407 printf("Drive not ready, tried %d times\n",
1408 ATAPI_DRIVE_NOT_READY
);
1412 debug("Media not present\n");
1416 printf("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n", key
, asc
,
1419 debug("ERROR Sense key %02X ASC %02X ASCQ %02X\n", key
, asc
, ascq
);
1424 static void atapi_inquiry(block_dev_desc_t
*dev_desc
)
1426 unsigned char ccb
[12]; /* Command descriptor block */
1427 unsigned char iobuf
[64]; /* temp buf */
1431 device
= dev_desc
->dev
;
1432 dev_desc
->type
= DEV_TYPE_UNKNOWN
; /* not yet valid */
1433 dev_desc
->block_read
= atapi_read
;
1435 memset(ccb
, 0, sizeof(ccb
));
1436 memset(iobuf
, 0, sizeof(iobuf
));
1438 ccb
[0] = ATAPI_CMD_INQUIRY
;
1439 ccb
[4] = 40; /* allocation Legnth */
1440 c
= atapi_issue_autoreq(device
, ccb
, 12, (unsigned char *) iobuf
, 40);
1442 debug("ATAPI_CMD_INQUIRY returned %x\n", c
);
1446 /* copy device ident strings */
1447 ident_cpy((unsigned char *) dev_desc
->vendor
, &iobuf
[8], 8);
1448 ident_cpy((unsigned char *) dev_desc
->product
, &iobuf
[16], 16);
1449 ident_cpy((unsigned char *) dev_desc
->revision
, &iobuf
[32], 5);
1453 dev_desc
->blksz
= 0;
1454 dev_desc
->log2blksz
= LOG2_INVALID(typeof(dev_desc
->log2blksz
));
1455 dev_desc
->type
= iobuf
[0] & 0x1f;
1457 if ((iobuf
[1] & 0x80) == 0x80)
1458 dev_desc
->removable
= 1;
1460 dev_desc
->removable
= 0;
1462 memset(ccb
, 0, sizeof(ccb
));
1463 memset(iobuf
, 0, sizeof(iobuf
));
1464 ccb
[0] = ATAPI_CMD_START_STOP
;
1465 ccb
[4] = 0x03; /* start */
1467 c
= atapi_issue_autoreq(device
, ccb
, 12, (unsigned char *) iobuf
, 0);
1469 debug("ATAPI_CMD_START_STOP returned %x\n", c
);
1473 memset(ccb
, 0, sizeof(ccb
));
1474 memset(iobuf
, 0, sizeof(iobuf
));
1475 c
= atapi_issue_autoreq(device
, ccb
, 12, (unsigned char *) iobuf
, 0);
1477 debug("ATAPI_CMD_UNIT_TEST_READY returned %x\n", c
);
1481 memset(ccb
, 0, sizeof(ccb
));
1482 memset(iobuf
, 0, sizeof(iobuf
));
1483 ccb
[0] = ATAPI_CMD_READ_CAP
;
1484 c
= atapi_issue_autoreq(device
, ccb
, 12, (unsigned char *) iobuf
, 8);
1485 debug("ATAPI_CMD_READ_CAP returned %x\n", c
);
1489 debug("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n",
1490 iobuf
[0], iobuf
[1], iobuf
[2], iobuf
[3],
1491 iobuf
[4], iobuf
[5], iobuf
[6], iobuf
[7]);
1493 dev_desc
->lba
= ((unsigned long) iobuf
[0] << 24) +
1494 ((unsigned long) iobuf
[1] << 16) +
1495 ((unsigned long) iobuf
[2] << 8) + ((unsigned long) iobuf
[3]);
1496 dev_desc
->blksz
= ((unsigned long) iobuf
[4] << 24) +
1497 ((unsigned long) iobuf
[5] << 16) +
1498 ((unsigned long) iobuf
[6] << 8) + ((unsigned long) iobuf
[7]);
1499 dev_desc
->log2blksz
= LOG2(dev_desc
->blksz
);
1501 /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */
1502 dev_desc
->lba48
= 0;
1510 * we transfer only one block per command, since the multiple DRQ per
1511 * command is not yet implemented
1513 #define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */
1514 #define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */
1515 #define ATAPI_READ_MAX_BLOCK (ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE)
1517 ulong
atapi_read(int device
, ulong blknr
, lbaint_t blkcnt
, void *buffer
)
1520 unsigned char ccb
[12]; /* Command descriptor block */
1523 debug("atapi_read dev %d start %lX, blocks " LBAF
" buffer at %lX\n",
1524 device
, blknr
, blkcnt
, (ulong
) buffer
);
1527 if (blkcnt
> ATAPI_READ_MAX_BLOCK
)
1528 cnt
= ATAPI_READ_MAX_BLOCK
;
1532 ccb
[0] = ATAPI_CMD_READ_12
;
1533 ccb
[1] = 0; /* reserved */
1534 ccb
[2] = (unsigned char) (blknr
>> 24) & 0xFF; /* MSB Block */
1535 ccb
[3] = (unsigned char) (blknr
>> 16) & 0xFF; /* */
1536 ccb
[4] = (unsigned char) (blknr
>> 8) & 0xFF;
1537 ccb
[5] = (unsigned char) blknr
& 0xFF; /* LSB Block */
1538 ccb
[6] = (unsigned char) (cnt
>> 24) & 0xFF; /* MSB Block cnt */
1539 ccb
[7] = (unsigned char) (cnt
>> 16) & 0xFF;
1540 ccb
[8] = (unsigned char) (cnt
>> 8) & 0xFF;
1541 ccb
[9] = (unsigned char) cnt
& 0xFF; /* LSB Block */
1542 ccb
[10] = 0; /* reserved */
1543 ccb
[11] = 0; /* reserved */
1545 if (atapi_issue_autoreq(device
, ccb
, 12,
1546 (unsigned char *) buffer
,
1547 cnt
* ATAPI_READ_BLOCK_SIZE
)
1554 buffer
+= (cnt
* ATAPI_READ_BLOCK_SIZE
);
1555 } while (blkcnt
> 0);
1559 /* ------------------------------------------------------------------------- */
1561 #endif /* CONFIG_ATAPI */
1563 U_BOOT_CMD(ide
, 5, 1, do_ide
,
1565 "reset - reset IDE controller\n"
1566 "ide info - show available IDE devices\n"
1567 "ide device [dev] - show or set current device\n"
1568 "ide part [dev] - print partition table of one or all IDE devices\n"
1569 "ide read addr blk# cnt\n"
1570 "ide write addr blk# cnt - read/write `cnt'"
1571 " blocks starting at block `blk#'\n"
1572 " to/from memory address `addr'");
1574 U_BOOT_CMD(diskboot
, 3, 1, do_diskboot
,
1575 "boot from IDE device", "loadAddr dev:part");