2 * (C) Copyright 2000-2011
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
16 # define EIEIO __asm__ volatile ("eieio")
17 # define SYNC __asm__ volatile ("sync")
19 # define EIEIO /* nothing */
20 # define SYNC /* nothing */
23 /* Current offset for IDE0 / IDE1 bus access */
24 ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS] = {
25 #if defined(CONFIG_SYS_ATA_IDE0_OFFSET)
26 CONFIG_SYS_ATA_IDE0_OFFSET,
28 #if defined(CONFIG_SYS_ATA_IDE1_OFFSET) && (CONFIG_SYS_IDE_MAXBUS > 1)
29 CONFIG_SYS_ATA_IDE1_OFFSET,
33 static int ide_bus_ok[CONFIG_SYS_IDE_MAXBUS];
35 struct blk_desc ide_dev_desc[CONFIG_SYS_IDE_MAXDEVICE];
37 #define IDE_TIME_OUT 2000 /* 2 sec timeout */
39 #define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */
41 #define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */
43 #ifndef CONFIG_SYS_ATA_PORT_ADDR
44 #define CONFIG_SYS_ATA_PORT_ADDR(port) (port)
47 #ifndef CONFIG_IDE_LED /* define LED macros, they are not used anyways */
48 # define DEVICE_LED(x) 0
53 #ifdef CONFIG_IDE_RESET
54 extern void ide_set_reset(int idereset);
56 static void ide_reset(void)
60 for (i = 0; i < CONFIG_SYS_IDE_MAXBUS; ++i)
62 for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i)
63 ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
65 ide_set_reset(1); /* assert reset */
67 /* the reset signal shall be asserted for et least 25 us */
72 /* de-assert RESET signal */
76 for (i = 0; i < 250; ++i)
80 #define ide_reset() /* dummy */
81 #endif /* CONFIG_IDE_RESET */
84 * Wait until Busy bit is off, or timeout (in ms)
87 static uchar ide_wait(int dev, ulong t)
89 ulong delay = 10 * t; /* poll every 100 us */
92 while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
101 * copy src to dest, skipping leading and trailing blanks and null
102 * terminate the string
103 * "len" is the size of available memory including the terminating '\0'
105 static void ident_cpy(unsigned char *dst, unsigned char *src,
108 unsigned char *end, *last;
113 /* reserve space for '\0' */
117 /* skip leading white space */
118 while ((*src) && (src < end) && (*src == ' '))
121 /* copy string, omitting trailing white space */
122 while ((*src) && (src < end)) {
132 /****************************************************************************
136 #if defined(CONFIG_IDE_SWAP_IO)
137 /* since ATAPI may use commands with not 4 bytes alligned length
138 * we have our own transfer functions, 2 bytes alligned */
139 __weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
142 volatile ushort *pbuf;
144 pbuf = (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG);
145 dbuf = (ushort *)sect_buf;
147 debug("in output data shorts base for read is %lx\n",
148 (unsigned long) pbuf);
156 __weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
159 volatile ushort *pbuf;
161 pbuf = (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG);
162 dbuf = (ushort *)sect_buf;
164 debug("in input data shorts base for read is %lx\n",
165 (unsigned long) pbuf);
173 #else /* ! CONFIG_IDE_SWAP_IO */
174 __weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
176 outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts);
179 __weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
181 insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts);
184 #endif /* CONFIG_IDE_SWAP_IO */
187 * Wait until (Status & mask) == res, or timeout (in ms)
189 * This is used since some ATAPI CD ROMs clears their Busy Bit first
190 * and then they set their DRQ Bit
192 static uchar atapi_wait_mask(int dev, ulong t, uchar mask, uchar res)
194 ulong delay = 10 * t; /* poll every 100 us */
197 /* prevents to read the status before valid */
198 c = ide_inb(dev, ATA_DEV_CTL);
200 while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) {
201 /* break if error occurs (doesn't make sense to wait more) */
202 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR)
212 * issue an atapi command
214 unsigned char atapi_issue(int device, unsigned char *ccb, int ccblen,
215 unsigned char *buffer, int buflen)
217 unsigned char c, err, mask, res;
220 ide_led(DEVICE_LED(device), 1); /* LED on */
224 mask = ATA_STAT_BUSY | ATA_STAT_DRQ;
226 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
227 c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
228 if ((c & mask) != res) {
229 printf("ATAPI_ISSUE: device %d not ready status %X\n", device,
235 ide_outb(device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */
236 ide_outb(device, ATA_SECT_CNT, 0);
237 ide_outb(device, ATA_SECT_NUM, 0);
238 ide_outb(device, ATA_CYL_LOW, (unsigned char) (buflen & 0xFF));
239 ide_outb(device, ATA_CYL_HIGH,
240 (unsigned char) ((buflen >> 8) & 0xFF));
241 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
243 ide_outb(device, ATA_COMMAND, ATAPI_CMD_PACKET);
246 mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR;
248 c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
250 if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */
251 printf("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n",
257 /* write command block */
258 ide_output_data_shorts(device, (unsigned short *)ccb, ccblen / 2);
260 /* ATAPI Command written wait for completition */
261 udelay(5000); /* device must set bsy */
263 mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR;
265 * if no data wait for DRQ = 0 BSY = 0
266 * if data wait for DRQ = 1 BSY = 0
271 c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
272 if ((c & mask) != res) {
273 if (c & ATA_STAT_ERR) {
274 err = (ide_inb(device, ATA_ERROR_REG)) >> 4;
275 debug("atapi_issue 1 returned sense key %X status %02X\n",
278 printf("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n",
284 n = ide_inb(device, ATA_CYL_HIGH);
286 n += ide_inb(device, ATA_CYL_LOW);
288 printf("ERROR, transfer bytes %d requested only %d\n", n,
293 if ((n == 0) && (buflen < 0)) {
294 printf("ERROR, transfer bytes %d requested %d\n", n, buflen);
299 debug("WARNING, transfer bytes %d not equal with requested %d\n",
302 if (n != 0) { /* data transfer */
303 debug("ATAPI_ISSUE: %d Bytes to transfer\n", n);
304 /* we transfer shorts */
306 /* ok now decide if it is an in or output */
307 if ((ide_inb(device, ATA_SECT_CNT) & 0x02) == 0) {
308 debug("Write to device\n");
309 ide_output_data_shorts(device, (unsigned short *)buffer,
312 debug("Read from device @ %p shorts %d\n", buffer, n);
313 ide_input_data_shorts(device, (unsigned short *)buffer,
317 udelay(5000); /* seems that some CD ROMs need this... */
318 mask = ATA_STAT_BUSY | ATA_STAT_ERR;
320 c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
321 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
322 err = (ide_inb(device, ATA_ERROR_REG) >> 4);
323 debug("atapi_issue 2 returned sense key %X status %X\n", err,
329 ide_led(DEVICE_LED(device), 0); /* LED off */
334 * sending the command to atapi_issue. If an status other than good
335 * returns, an request_sense will be issued
338 #define ATAPI_DRIVE_NOT_READY 100
339 #define ATAPI_UNIT_ATTN 10
341 unsigned char atapi_issue_autoreq(int device,
344 unsigned char *buffer, int buflen)
346 unsigned char sense_data[18], sense_ccb[12];
347 unsigned char res, key, asc, ascq;
348 int notready, unitattn;
350 unitattn = ATAPI_UNIT_ATTN;
351 notready = ATAPI_DRIVE_NOT_READY;
354 res = atapi_issue(device, ccb, ccblen, buffer, buflen);
359 return 0xFF; /* error */
361 debug("(auto_req)atapi_issue returned sense key %X\n", res);
363 memset(sense_ccb, 0, sizeof(sense_ccb));
364 memset(sense_data, 0, sizeof(sense_data));
365 sense_ccb[0] = ATAPI_CMD_REQ_SENSE;
366 sense_ccb[4] = 18; /* allocation Length */
368 res = atapi_issue(device, sense_ccb, 12, sense_data, 18);
369 key = (sense_data[2] & 0xF);
370 asc = (sense_data[12]);
371 ascq = (sense_data[13]);
373 debug("ATAPI_CMD_REQ_SENSE returned %x\n", res);
374 debug(" Sense page: %02X key %02X ASC %02X ASCQ %02X\n",
375 sense_data[0], key, asc, ascq);
378 return 0; /* ok device ready */
380 if ((key == 6) || (asc == 0x29) || (asc == 0x28)) { /* Unit Attention */
381 if (unitattn-- > 0) {
385 printf("Unit Attention, tried %d\n", ATAPI_UNIT_ATTN);
388 if ((asc == 0x4) && (ascq == 0x1)) {
389 /* not ready, but will be ready soon */
390 if (notready-- > 0) {
394 printf("Drive not ready, tried %d times\n",
395 ATAPI_DRIVE_NOT_READY);
399 debug("Media not present\n");
403 printf("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n", key, asc,
406 debug("ERROR Sense key %02X ASC %02X ASCQ %02X\n", key, asc, ascq);
412 * we transfer only one block per command, since the multiple DRQ per
413 * command is not yet implemented
415 #define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */
416 #define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */
417 #define ATAPI_READ_MAX_BLOCK (ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE)
419 ulong atapi_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt,
422 int device = block_dev->devnum;
424 unsigned char ccb[12]; /* Command descriptor block */
427 debug("atapi_read dev %d start " LBAF " blocks " LBAF
428 " buffer at %lX\n", device, blknr, blkcnt, (ulong) buffer);
431 if (blkcnt > ATAPI_READ_MAX_BLOCK)
432 cnt = ATAPI_READ_MAX_BLOCK;
436 ccb[0] = ATAPI_CMD_READ_12;
437 ccb[1] = 0; /* reserved */
438 ccb[2] = (unsigned char) (blknr >> 24) & 0xFF; /* MSB Block */
439 ccb[3] = (unsigned char) (blknr >> 16) & 0xFF; /* */
440 ccb[4] = (unsigned char) (blknr >> 8) & 0xFF;
441 ccb[5] = (unsigned char) blknr & 0xFF; /* LSB Block */
442 ccb[6] = (unsigned char) (cnt >> 24) & 0xFF; /* MSB Block cnt */
443 ccb[7] = (unsigned char) (cnt >> 16) & 0xFF;
444 ccb[8] = (unsigned char) (cnt >> 8) & 0xFF;
445 ccb[9] = (unsigned char) cnt & 0xFF; /* LSB Block */
446 ccb[10] = 0; /* reserved */
447 ccb[11] = 0; /* reserved */
449 if (atapi_issue_autoreq(device, ccb, 12,
450 (unsigned char *)buffer,
451 cnt * ATAPI_READ_BLOCK_SIZE)
458 buffer += (cnt * ATAPI_READ_BLOCK_SIZE);
459 } while (blkcnt > 0);
463 static void atapi_inquiry(struct blk_desc *dev_desc)
465 unsigned char ccb[12]; /* Command descriptor block */
466 unsigned char iobuf[64]; /* temp buf */
470 device = dev_desc->devnum;
471 dev_desc->type = DEV_TYPE_UNKNOWN; /* not yet valid */
473 dev_desc->block_read = atapi_read;
476 memset(ccb, 0, sizeof(ccb));
477 memset(iobuf, 0, sizeof(iobuf));
479 ccb[0] = ATAPI_CMD_INQUIRY;
480 ccb[4] = 40; /* allocation Legnth */
481 c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *)iobuf, 40);
483 debug("ATAPI_CMD_INQUIRY returned %x\n", c);
487 /* copy device ident strings */
488 ident_cpy((unsigned char *)dev_desc->vendor, &iobuf[8], 8);
489 ident_cpy((unsigned char *)dev_desc->product, &iobuf[16], 16);
490 ident_cpy((unsigned char *)dev_desc->revision, &iobuf[32], 5);
495 dev_desc->log2blksz = LOG2_INVALID(typeof(dev_desc->log2blksz));
496 dev_desc->type = iobuf[0] & 0x1f;
498 if ((iobuf[1] & 0x80) == 0x80)
499 dev_desc->removable = 1;
501 dev_desc->removable = 0;
503 memset(ccb, 0, sizeof(ccb));
504 memset(iobuf, 0, sizeof(iobuf));
505 ccb[0] = ATAPI_CMD_START_STOP;
506 ccb[4] = 0x03; /* start */
508 c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *)iobuf, 0);
510 debug("ATAPI_CMD_START_STOP returned %x\n", c);
514 memset(ccb, 0, sizeof(ccb));
515 memset(iobuf, 0, sizeof(iobuf));
516 c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *)iobuf, 0);
518 debug("ATAPI_CMD_UNIT_TEST_READY returned %x\n", c);
522 memset(ccb, 0, sizeof(ccb));
523 memset(iobuf, 0, sizeof(iobuf));
524 ccb[0] = ATAPI_CMD_READ_CAP;
525 c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *)iobuf, 8);
526 debug("ATAPI_CMD_READ_CAP returned %x\n", c);
530 debug("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n",
531 iobuf[0], iobuf[1], iobuf[2], iobuf[3],
532 iobuf[4], iobuf[5], iobuf[6], iobuf[7]);
534 dev_desc->lba = ((unsigned long) iobuf[0] << 24) +
535 ((unsigned long) iobuf[1] << 16) +
536 ((unsigned long) iobuf[2] << 8) + ((unsigned long) iobuf[3]);
537 dev_desc->blksz = ((unsigned long) iobuf[4] << 24) +
538 ((unsigned long) iobuf[5] << 16) +
539 ((unsigned long) iobuf[6] << 8) + ((unsigned long) iobuf[7]);
540 dev_desc->log2blksz = LOG2(dev_desc->blksz);
542 /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */
548 #endif /* CONFIG_ATAPI */
550 static void ide_ident(struct blk_desc *dev_desc)
560 device = dev_desc->devnum;
561 printf(" Device %d: ", device);
563 ide_led(DEVICE_LED(device), 1); /* LED on */
566 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
567 dev_desc->if_type = IF_TYPE_IDE;
572 /* Warning: This will be tricky to read */
573 while (retries <= 1) {
574 /* check signature */
575 if ((ide_inb(device, ATA_SECT_CNT) == 0x01) &&
576 (ide_inb(device, ATA_SECT_NUM) == 0x01) &&
577 (ide_inb(device, ATA_CYL_LOW) == 0x14) &&
578 (ide_inb(device, ATA_CYL_HIGH) == 0xEB)) {
579 /* ATAPI Signature found */
580 dev_desc->if_type = IF_TYPE_ATAPI;
582 * Start Ident Command
584 ide_outb(device, ATA_COMMAND, ATAPI_CMD_IDENT);
586 * Wait for completion - ATAPI devices need more time
589 c = ide_wait(device, ATAPI_TIME_OUT);
594 * Start Ident Command
596 ide_outb(device, ATA_COMMAND, ATA_CMD_IDENT);
599 * Wait for completion
601 c = ide_wait(device, IDE_TIME_OUT);
603 ide_led(DEVICE_LED(device), 0); /* LED off */
605 if (((c & ATA_STAT_DRQ) == 0) ||
606 ((c & (ATA_STAT_FAULT | ATA_STAT_ERR)) != 0)) {
610 * Need to soft reset the device
611 * in case it's an ATAPI...
613 debug("Retrying...\n");
614 ide_outb(device, ATA_DEV_HD,
615 ATA_LBA | ATA_DEVICE(device));
617 ide_outb(device, ATA_COMMAND, 0x08);
618 udelay(500000); /* 500 ms */
623 ide_outb(device, ATA_DEV_HD,
624 ATA_LBA | ATA_DEVICE(device));
633 } /* see above - ugly to read */
635 if (retries == 2) /* Not found */
639 ide_input_swap_data(device, (ulong *)&iop, ATA_SECTORWORDS);
641 ident_cpy((unsigned char *)dev_desc->revision, iop.fw_rev,
642 sizeof(dev_desc->revision));
643 ident_cpy((unsigned char *)dev_desc->vendor, iop.model,
644 sizeof(dev_desc->vendor));
645 ident_cpy((unsigned char *)dev_desc->product, iop.serial_no,
646 sizeof(dev_desc->product));
647 #ifdef __LITTLE_ENDIAN
649 * firmware revision, model, and serial number have Big Endian Byte
650 * order in Word. Convert all three to little endian.
652 * See CF+ and CompactFlash Specification Revision 2.0:
653 * 6.2.1.6: Identify Drive, Table 39 for more details
656 strswab(dev_desc->revision);
657 strswab(dev_desc->vendor);
658 strswab(dev_desc->product);
659 #endif /* __LITTLE_ENDIAN */
661 if ((iop.config & 0x0080) == 0x0080)
662 dev_desc->removable = 1;
664 dev_desc->removable = 0;
667 if (dev_desc->if_type == IF_TYPE_ATAPI) {
668 atapi_inquiry(dev_desc);
671 #endif /* CONFIG_ATAPI */
675 dev_desc->lba = (iop.lba_capacity << 16) | (iop.lba_capacity >> 16);
676 #else /* ! __BIG_ENDIAN */
678 * do not swap shorts on little endian
680 * See CF+ and CompactFlash Specification Revision 2.0:
681 * 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
683 dev_desc->lba = iop.lba_capacity;
684 #endif /* __BIG_ENDIAN */
687 if (iop.command_set_2 & 0x0400) { /* LBA 48 support */
689 dev_desc->lba = (unsigned long long) iop.lba48_capacity[0] |
690 ((unsigned long long) iop.lba48_capacity[1] << 16) |
691 ((unsigned long long) iop.lba48_capacity[2] << 32) |
692 ((unsigned long long) iop.lba48_capacity[3] << 48);
696 #endif /* CONFIG_LBA48 */
698 dev_desc->type = DEV_TYPE_HARDDISK;
699 dev_desc->blksz = ATA_BLOCKSIZE;
700 dev_desc->log2blksz = LOG2(dev_desc->blksz);
701 dev_desc->lun = 0; /* just to fill something in... */
703 #if 0 /* only used to test the powersaving mode,
704 * if enabled, the drive goes after 5 sec
706 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
707 c = ide_wait(device, IDE_TIME_OUT);
708 ide_outb(device, ATA_SECT_CNT, 1);
709 ide_outb(device, ATA_LBA_LOW, 0);
710 ide_outb(device, ATA_LBA_MID, 0);
711 ide_outb(device, ATA_LBA_HIGH, 0);
712 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
713 ide_outb(device, ATA_COMMAND, 0xe3);
715 c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */
719 __weak void ide_led(uchar led, uchar status)
721 #if defined(CONFIG_IDE_LED) && defined(PER8_BASE) /* required by LED_PORT */
722 static uchar led_buffer; /* Buffer for current LED status */
724 uchar *led_port = LED_PORT;
726 if (status) /* switch LED on */
728 else /* switch LED off */
731 *led_port = led_buffer;
735 __weak void ide_outb(int dev, int port, unsigned char val)
737 debug("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
739 (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)));
741 #if defined(CONFIG_IDE_AHB)
744 ide_write_register(dev, port, val);
747 outb(val, (ATA_CURR_BASE(dev)));
750 outb(val, (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)));
754 __weak unsigned char ide_inb(int dev, int port)
758 #if defined(CONFIG_IDE_AHB)
759 val = ide_read_register(dev, port);
761 val = inb((ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)));
764 debug("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
766 (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)), val);
775 #ifdef CONFIG_IDE_PREINIT
779 puts("ide_preinit failed\n");
782 #endif /* CONFIG_IDE_PREINIT */
787 * Reset the IDE just to be sure.
788 * Light LED's to show
790 ide_led((LED_IDE1 | LED_IDE2), 1); /* LED's on */
792 /* ATAPI Drives seems to need a proper IDE Reset */
795 #ifdef CONFIG_IDE_INIT_POSTRESET
798 if (ide_init_postreset()) {
799 puts("ide_preinit_postreset failed\n");
802 #endif /* CONFIG_IDE_INIT_POSTRESET */
805 * Wait for IDE to get ready.
806 * According to spec, this can take up to 31 seconds!
808 for (bus = 0; bus < CONFIG_SYS_IDE_MAXBUS; ++bus) {
810 bus * (CONFIG_SYS_IDE_MAXDEVICE /
811 CONFIG_SYS_IDE_MAXBUS);
813 printf("Bus %d: ", bus);
819 udelay(100000); /* 100 ms */
820 ide_outb(dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
821 udelay(100000); /* 100 ms */
824 udelay(10000); /* 10 ms */
826 c = ide_inb(dev, ATA_STATUS);
828 if (i > (ATA_RESET_TIME * 100)) {
829 puts("** Timeout **\n");
831 ide_led((LED_IDE1 | LED_IDE2), 0);
834 if ((i >= 100) && ((i % 100) == 0))
837 } while (c & ATA_STAT_BUSY);
839 if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) {
840 puts("not available ");
841 debug("Status = 0x%02X ", c);
842 #ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */
843 } else if ((c & ATA_STAT_READY) == 0) {
844 puts("not available ");
845 debug("Status = 0x%02X ", c);
856 ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */
858 for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) {
859 int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2;
860 ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
861 ide_dev_desc[i].if_type = IF_TYPE_IDE;
862 ide_dev_desc[i].devnum = i;
863 ide_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
864 ide_dev_desc[i].blksz = 0;
865 ide_dev_desc[i].log2blksz =
866 LOG2_INVALID(typeof(ide_dev_desc[i].log2blksz));
867 ide_dev_desc[i].lba = 0;
869 ide_dev_desc[i].block_read = ide_read;
870 ide_dev_desc[i].block_write = ide_write;
872 if (!ide_bus_ok[IDE_BUS(i)])
874 ide_led(led, 1); /* LED on */
875 ide_ident(&ide_dev_desc[i]);
876 ide_led(led, 0); /* LED off */
877 dev_print(&ide_dev_desc[i]);
879 if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) {
880 /* initialize partition type */
881 part_init(&ide_dev_desc[i]);
887 /* We only need to swap data if we are running on a big endian cpu. */
888 #if defined(__LITTLE_ENDIAN)
889 __weak void ide_input_swap_data(int dev, ulong *sect_buf, int words)
891 ide_input_data(dev, sect_buf, words);
894 __weak void ide_input_swap_data(int dev, ulong *sect_buf, int words)
896 volatile ushort *pbuf =
897 (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG);
898 ushort *dbuf = (ushort *)sect_buf;
900 debug("in input swap data base for read is %lx\n",
901 (unsigned long) pbuf);
905 *dbuf++ = swab16p((u16 *)pbuf);
906 *dbuf++ = swab16p((u16 *)pbuf);
908 *dbuf++ = ld_le16(pbuf);
909 *dbuf++ = ld_le16(pbuf);
913 #endif /* __LITTLE_ENDIAN */
916 #if defined(CONFIG_IDE_SWAP_IO)
917 __weak void ide_output_data(int dev, const ulong *sect_buf, int words)
920 volatile ushort *pbuf;
922 pbuf = (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG);
923 dbuf = (ushort *)sect_buf;
931 #else /* ! CONFIG_IDE_SWAP_IO */
932 __weak void ide_output_data(int dev, const ulong *sect_buf, int words)
934 #if defined(CONFIG_IDE_AHB)
935 ide_write_data(dev, sect_buf, words);
937 outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1);
940 #endif /* CONFIG_IDE_SWAP_IO */
942 #if defined(CONFIG_IDE_SWAP_IO)
943 __weak void ide_input_data(int dev, ulong *sect_buf, int words)
946 volatile ushort *pbuf;
948 pbuf = (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG);
949 dbuf = (ushort *)sect_buf;
951 debug("in input data base for read is %lx\n", (unsigned long) pbuf);
960 #else /* ! CONFIG_IDE_SWAP_IO */
961 __weak void ide_input_data(int dev, ulong *sect_buf, int words)
963 #if defined(CONFIG_IDE_AHB)
964 ide_read_data(dev, sect_buf, words);
966 insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1);
970 #endif /* CONFIG_IDE_SWAP_IO */
973 ulong ide_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
976 ulong ide_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt,
981 struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
983 int device = block_dev->devnum;
986 unsigned char pwrsave = 0; /* power save */
989 unsigned char lba48 = 0;
991 if (blknr & 0x0000fffff0000000ULL) {
992 /* more than 28 bits used, use 48bit mode */
996 debug("ide_read dev %d start " LBAF ", blocks " LBAF " buffer at %lX\n",
997 device, blknr, blkcnt, (ulong) buffer);
999 ide_led(DEVICE_LED(device), 1); /* LED on */
1003 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1004 c = ide_wait(device, IDE_TIME_OUT);
1006 if (c & ATA_STAT_BUSY) {
1007 printf("IDE read: device %d not ready\n", device);
1011 /* first check if the drive is in Powersaving mode, if yes,
1012 * increase the timeout value */
1013 ide_outb(device, ATA_COMMAND, ATA_CMD_CHK_PWR);
1016 c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */
1018 if (c & ATA_STAT_BUSY) {
1019 printf("IDE read: device %d not ready\n", device);
1022 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
1023 printf("No Powersaving mode %X\n", c);
1025 c = ide_inb(device, ATA_SECT_CNT);
1026 debug("Powersaving %02X\n", c);
1032 while (blkcnt-- > 0) {
1033 c = ide_wait(device, IDE_TIME_OUT);
1035 if (c & ATA_STAT_BUSY) {
1036 printf("IDE read: device %d not ready\n", device);
1041 /* write high bits */
1042 ide_outb(device, ATA_SECT_CNT, 0);
1043 ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
1044 #ifdef CONFIG_SYS_64BIT_LBA
1045 ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
1046 ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
1048 ide_outb(device, ATA_LBA_MID, 0);
1049 ide_outb(device, ATA_LBA_HIGH, 0);
1053 ide_outb(device, ATA_SECT_CNT, 1);
1054 ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
1055 ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
1056 ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
1060 ide_outb(device, ATA_DEV_HD,
1061 ATA_LBA | ATA_DEVICE(device));
1062 ide_outb(device, ATA_COMMAND, ATA_CMD_READ_EXT);
1067 ide_outb(device, ATA_DEV_HD, ATA_LBA |
1068 ATA_DEVICE(device) | ((blknr >> 24) & 0xF));
1069 ide_outb(device, ATA_COMMAND, ATA_CMD_READ);
1075 /* may take up to 4 sec */
1076 c = ide_wait(device, IDE_SPIN_UP_TIME_OUT);
1079 /* can't take over 500 ms */
1080 c = ide_wait(device, IDE_TIME_OUT);
1083 if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) !=
1085 printf("Error (no IRQ) dev %d blk " LBAF
1086 ": status %#02x\n", device, blknr, c);
1090 ide_input_data(device, buffer, ATA_SECTORWORDS);
1091 (void) ide_inb(device, ATA_STATUS); /* clear IRQ */
1095 buffer += ATA_BLOCKSIZE;
1098 ide_led(DEVICE_LED(device), 0); /* LED off */
1103 ulong ide_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
1106 ulong ide_write(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt,
1111 struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
1113 int device = block_dev->devnum;
1118 unsigned char lba48 = 0;
1120 if (blknr & 0x0000fffff0000000ULL) {
1121 /* more than 28 bits used, use 48bit mode */
1126 ide_led(DEVICE_LED(device), 1); /* LED on */
1130 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1132 while (blkcnt-- > 0) {
1133 c = ide_wait(device, IDE_TIME_OUT);
1135 if (c & ATA_STAT_BUSY) {
1136 printf("IDE read: device %d not ready\n", device);
1141 /* write high bits */
1142 ide_outb(device, ATA_SECT_CNT, 0);
1143 ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
1144 #ifdef CONFIG_SYS_64BIT_LBA
1145 ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
1146 ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
1148 ide_outb(device, ATA_LBA_MID, 0);
1149 ide_outb(device, ATA_LBA_HIGH, 0);
1153 ide_outb(device, ATA_SECT_CNT, 1);
1154 ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
1155 ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
1156 ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
1160 ide_outb(device, ATA_DEV_HD,
1161 ATA_LBA | ATA_DEVICE(device));
1162 ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE_EXT);
1167 ide_outb(device, ATA_DEV_HD, ATA_LBA |
1168 ATA_DEVICE(device) | ((blknr >> 24) & 0xF));
1169 ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE);
1174 /* can't take over 500 ms */
1175 c = ide_wait(device, IDE_TIME_OUT);
1177 if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) !=
1179 printf("Error (no IRQ) dev %d blk " LBAF
1180 ": status %#02x\n", device, blknr, c);
1184 ide_output_data(device, buffer, ATA_SECTORWORDS);
1185 c = ide_inb(device, ATA_STATUS); /* clear IRQ */
1188 buffer += ATA_BLOCKSIZE;
1191 ide_led(DEVICE_LED(device), 0); /* LED off */
1195 #if defined(CONFIG_OF_IDE_FIXUP)
1196 int ide_device_present(int dev)
1198 if (dev >= CONFIG_SYS_IDE_MAXBUS)
1200 return ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1;
1205 static const struct blk_ops ide_blk_ops = {
1210 U_BOOT_DRIVER(ide_blk) = {
1213 .ops = &ide_blk_ops,
1216 U_BOOT_LEGACY_BLK(ide) = {
1217 .if_typename = "ide",
1218 .if_type = IF_TYPE_IDE,
1219 .max_devs = CONFIG_SYS_IDE_MAXDEVICE,
1220 .desc = ide_dev_desc,