upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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1449 lines
35 KiB
1449 lines
35 KiB
/*
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* (C) Copyright 2000-2011
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* IDE support
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*/
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#include <common.h>
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#include <config.h>
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#include <watchdog.h>
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#include <command.h>
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#include <image.h>
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#include <asm/byteorder.h>
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#include <asm/io.h>
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#if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA)
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# include <pcmcia.h>
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#endif
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#include <ide.h>
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#include <ata.h>
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#ifdef CONFIG_STATUS_LED
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# include <status_led.h>
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#endif
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#ifdef __PPC__
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# define EIEIO __asm__ volatile ("eieio")
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# define SYNC __asm__ volatile ("sync")
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#else
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# define EIEIO /* nothing */
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# define SYNC /* nothing */
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#endif
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/* ------------------------------------------------------------------------- */
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/* Current I/O Device */
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static int curr_device = -1;
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/* Current offset for IDE0 / IDE1 bus access */
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ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS] = {
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#if defined(CONFIG_SYS_ATA_IDE0_OFFSET)
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CONFIG_SYS_ATA_IDE0_OFFSET,
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#endif
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#if defined(CONFIG_SYS_ATA_IDE1_OFFSET) && (CONFIG_SYS_IDE_MAXBUS > 1)
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CONFIG_SYS_ATA_IDE1_OFFSET,
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#endif
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};
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static int ide_bus_ok[CONFIG_SYS_IDE_MAXBUS];
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block_dev_desc_t ide_dev_desc[CONFIG_SYS_IDE_MAXDEVICE];
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/* ------------------------------------------------------------------------- */
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#ifdef CONFIG_IDE_RESET
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static void ide_reset (void);
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#else
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#define ide_reset() /* dummy */
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#endif
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static void ide_ident (block_dev_desc_t *dev_desc);
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static uchar ide_wait (int dev, ulong t);
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#define IDE_TIME_OUT 2000 /* 2 sec timeout */
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#define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */
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#define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */
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static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
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#ifndef CONFIG_SYS_ATA_PORT_ADDR
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#define CONFIG_SYS_ATA_PORT_ADDR(port) (port)
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#endif
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#ifdef CONFIG_ATAPI
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static void atapi_inquiry(block_dev_desc_t *dev_desc);
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static ulong atapi_read(int device, ulong blknr, lbaint_t blkcnt,
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void *buffer);
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#endif
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/* ------------------------------------------------------------------------- */
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int do_ide(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
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{
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int rcode = 0;
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switch (argc) {
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case 0:
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case 1:
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return CMD_RET_USAGE;
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case 2:
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if (strncmp(argv[1], "res", 3) == 0) {
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puts("\nReset IDE"
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#ifdef CONFIG_IDE_8xx_DIRECT
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" on PCMCIA " PCMCIA_SLOT_MSG
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#endif
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": ");
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ide_init();
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return 0;
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} else if (strncmp(argv[1], "inf", 3) == 0) {
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int i;
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putc('\n');
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for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) {
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if (ide_dev_desc[i].type == DEV_TYPE_UNKNOWN)
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continue; /* list only known devices */
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printf("IDE device %d: ", i);
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dev_print(&ide_dev_desc[i]);
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}
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return 0;
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} else if (strncmp(argv[1], "dev", 3) == 0) {
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if ((curr_device < 0)
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|| (curr_device >= CONFIG_SYS_IDE_MAXDEVICE)) {
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puts("\nno IDE devices available\n");
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return 1;
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}
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printf("\nIDE device %d: ", curr_device);
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dev_print(&ide_dev_desc[curr_device]);
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return 0;
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} else if (strncmp(argv[1], "part", 4) == 0) {
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int dev, ok;
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for (ok = 0, dev = 0;
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dev < CONFIG_SYS_IDE_MAXDEVICE;
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++dev) {
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if (ide_dev_desc[dev].part_type !=
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PART_TYPE_UNKNOWN) {
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++ok;
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if (dev)
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putc('\n');
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print_part(&ide_dev_desc[dev]);
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}
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}
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if (!ok) {
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puts("\nno IDE devices available\n");
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rcode++;
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}
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return rcode;
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}
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return CMD_RET_USAGE;
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case 3:
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if (strncmp(argv[1], "dev", 3) == 0) {
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int dev = (int) simple_strtoul(argv[2], NULL, 10);
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printf("\nIDE device %d: ", dev);
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if (dev >= CONFIG_SYS_IDE_MAXDEVICE) {
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puts("unknown device\n");
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return 1;
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}
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dev_print(&ide_dev_desc[dev]);
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/*ide_print (dev); */
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if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN)
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return 1;
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curr_device = dev;
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puts("... is now current device\n");
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return 0;
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} else if (strncmp(argv[1], "part", 4) == 0) {
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int dev = (int) simple_strtoul(argv[2], NULL, 10);
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if (ide_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
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print_part(&ide_dev_desc[dev]);
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} else {
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printf("\nIDE device %d not available\n",
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dev);
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rcode = 1;
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}
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return rcode;
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}
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return CMD_RET_USAGE;
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default:
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/* at least 4 args */
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if (strcmp(argv[1], "read") == 0) {
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ulong addr = simple_strtoul(argv[2], NULL, 16);
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ulong cnt = simple_strtoul(argv[4], NULL, 16);
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ulong n;
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#ifdef CONFIG_SYS_64BIT_LBA
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lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
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printf("\nIDE read: device %d block # %lld, count %ld ... ",
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curr_device, blk, cnt);
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#else
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lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
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printf("\nIDE read: device %d block # %ld, count %ld ... ",
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curr_device, blk, cnt);
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#endif
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n = ide_dev_desc[curr_device].block_read(curr_device,
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blk, cnt,
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(ulong *)addr);
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/* flush cache after read */
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flush_cache(addr,
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cnt * ide_dev_desc[curr_device].blksz);
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printf("%ld blocks read: %s\n",
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n, (n == cnt) ? "OK" : "ERROR");
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if (n == cnt)
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return 0;
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else
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return 1;
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} else if (strcmp(argv[1], "write") == 0) {
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ulong addr = simple_strtoul(argv[2], NULL, 16);
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ulong cnt = simple_strtoul(argv[4], NULL, 16);
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ulong n;
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#ifdef CONFIG_SYS_64BIT_LBA
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lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
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printf("\nIDE write: device %d block # %lld, count %ld ... ",
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curr_device, blk, cnt);
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#else
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lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
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printf("\nIDE write: device %d block # %ld, count %ld ... ",
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curr_device, blk, cnt);
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#endif
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n = ide_write(curr_device, blk, cnt, (ulong *) addr);
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printf("%ld blocks written: %s\n",
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n, (n == cnt) ? "OK" : "ERROR");
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if (n == cnt)
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return 0;
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else
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return 1;
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} else {
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return CMD_RET_USAGE;
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}
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return rcode;
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}
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}
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int do_diskboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
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{
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return common_diskboot(cmdtp, "ide", argc, argv);
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}
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/* ------------------------------------------------------------------------- */
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__weak void ide_led(uchar led, uchar status)
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{
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#if defined(CONFIG_IDE_LED) && defined(PER8_BASE) /* required by LED_PORT */
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static uchar led_buffer; /* Buffer for current LED status */
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uchar *led_port = LED_PORT;
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if (status) /* switch LED on */
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led_buffer |= led;
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else /* switch LED off */
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led_buffer &= ~led;
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*led_port = led_buffer;
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#endif
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}
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#ifndef CONFIG_IDE_LED /* define LED macros, they are not used anyways */
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# define DEVICE_LED(x) 0
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# define LED_IDE1 1
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# define LED_IDE2 2
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#endif
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/* ------------------------------------------------------------------------- */
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__weak void ide_outb(int dev, int port, unsigned char val)
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{
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debug("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
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dev, port, val,
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(ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)));
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#if defined(CONFIG_IDE_AHB)
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if (port) {
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/* write command */
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ide_write_register(dev, port, val);
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} else {
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/* write data */
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outb(val, (ATA_CURR_BASE(dev)));
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}
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#else
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outb(val, (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)));
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#endif
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}
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__weak unsigned char ide_inb(int dev, int port)
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{
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uchar val;
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#if defined(CONFIG_IDE_AHB)
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val = ide_read_register(dev, port);
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#else
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val = inb((ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)));
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#endif
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debug("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
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dev, port,
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(ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)), val);
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return val;
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}
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void ide_init(void)
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{
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unsigned char c;
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int i, bus;
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#ifdef CONFIG_IDE_8xx_PCCARD
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extern int ide_devices_found; /* Initialized in check_ide_device() */
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#endif /* CONFIG_IDE_8xx_PCCARD */
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#ifdef CONFIG_IDE_PREINIT
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WATCHDOG_RESET();
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if (ide_preinit()) {
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puts("ide_preinit failed\n");
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return;
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}
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#endif /* CONFIG_IDE_PREINIT */
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WATCHDOG_RESET();
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/*
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* Reset the IDE just to be sure.
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* Light LED's to show
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*/
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ide_led((LED_IDE1 | LED_IDE2), 1); /* LED's on */
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/* ATAPI Drives seems to need a proper IDE Reset */
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ide_reset();
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#ifdef CONFIG_IDE_INIT_POSTRESET
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WATCHDOG_RESET();
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if (ide_init_postreset()) {
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puts("ide_preinit_postreset failed\n");
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return;
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}
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#endif /* CONFIG_IDE_INIT_POSTRESET */
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/*
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* Wait for IDE to get ready.
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* According to spec, this can take up to 31 seconds!
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*/
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for (bus = 0; bus < CONFIG_SYS_IDE_MAXBUS; ++bus) {
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int dev =
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bus * (CONFIG_SYS_IDE_MAXDEVICE /
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CONFIG_SYS_IDE_MAXBUS);
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#ifdef CONFIG_IDE_8xx_PCCARD
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/* Skip non-ide devices from probing */
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if ((ide_devices_found & (1 << bus)) == 0) {
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ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */
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continue;
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}
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#endif
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printf("Bus %d: ", bus);
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ide_bus_ok[bus] = 0;
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/* Select device
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*/
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udelay(100000); /* 100 ms */
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ide_outb(dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
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udelay(100000); /* 100 ms */
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i = 0;
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do {
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udelay(10000); /* 10 ms */
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c = ide_inb(dev, ATA_STATUS);
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i++;
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if (i > (ATA_RESET_TIME * 100)) {
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puts("** Timeout **\n");
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/* LED's off */
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ide_led((LED_IDE1 | LED_IDE2), 0);
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return;
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}
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if ((i >= 100) && ((i % 100) == 0))
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putc('.');
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} while (c & ATA_STAT_BUSY);
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if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) {
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puts("not available ");
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debug("Status = 0x%02X ", c);
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#ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */
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} else if ((c & ATA_STAT_READY) == 0) {
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puts("not available ");
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debug("Status = 0x%02X ", c);
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#endif
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} else {
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puts("OK ");
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ide_bus_ok[bus] = 1;
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}
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WATCHDOG_RESET();
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}
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putc('\n');
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ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */
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curr_device = -1;
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for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) {
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int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2;
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ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
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ide_dev_desc[i].if_type = IF_TYPE_IDE;
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ide_dev_desc[i].dev = i;
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ide_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
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ide_dev_desc[i].blksz = 0;
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ide_dev_desc[i].log2blksz =
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LOG2_INVALID(typeof(ide_dev_desc[i].log2blksz));
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ide_dev_desc[i].lba = 0;
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ide_dev_desc[i].block_read = ide_read;
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ide_dev_desc[i].block_write = ide_write;
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if (!ide_bus_ok[IDE_BUS(i)])
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continue;
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ide_led(led, 1); /* LED on */
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ide_ident(&ide_dev_desc[i]);
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ide_led(led, 0); /* LED off */
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dev_print(&ide_dev_desc[i]);
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if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) {
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/* initialize partition type */
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init_part(&ide_dev_desc[i]);
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if (curr_device < 0)
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curr_device = i;
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}
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}
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WATCHDOG_RESET();
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}
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/* ------------------------------------------------------------------------- */
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#ifdef CONFIG_PARTITIONS
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block_dev_desc_t *ide_get_dev(int dev)
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{
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return (dev < CONFIG_SYS_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL;
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}
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#endif
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/* ------------------------------------------------------------------------- */
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/* We only need to swap data if we are running on a big endian cpu. */
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#if defined(__LITTLE_ENDIAN)
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__weak void ide_input_swap_data(int dev, ulong *sect_buf, int words)
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{
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ide_input_data(dev, sect_buf, words);
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}
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#else
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__weak void ide_input_swap_data(int dev, ulong *sect_buf, int words)
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{
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volatile ushort *pbuf =
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(ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
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ushort *dbuf = (ushort *) sect_buf;
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debug("in input swap data base for read is %lx\n",
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(unsigned long) pbuf);
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while (words--) {
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#ifdef __MIPS__
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*dbuf++ = swab16p((u16 *) pbuf);
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*dbuf++ = swab16p((u16 *) pbuf);
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#else
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*dbuf++ = ld_le16(pbuf);
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*dbuf++ = ld_le16(pbuf);
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#endif /* !MIPS */
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}
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}
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#endif /* __LITTLE_ENDIAN */
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|
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#if defined(CONFIG_IDE_SWAP_IO)
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__weak void ide_output_data(int dev, const ulong *sect_buf, int words)
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{
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ushort *dbuf;
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volatile ushort *pbuf;
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pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
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dbuf = (ushort *) sect_buf;
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while (words--) {
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EIEIO;
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*pbuf = *dbuf++;
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EIEIO;
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*pbuf = *dbuf++;
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}
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}
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#else /* ! CONFIG_IDE_SWAP_IO */
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__weak void ide_output_data(int dev, const ulong *sect_buf, int words)
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{
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#if defined(CONFIG_IDE_AHB)
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ide_write_data(dev, sect_buf, words);
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#else
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outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1);
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#endif
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}
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#endif /* CONFIG_IDE_SWAP_IO */
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#if defined(CONFIG_IDE_SWAP_IO)
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__weak void ide_input_data(int dev, ulong *sect_buf, int words)
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{
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ushort *dbuf;
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volatile ushort *pbuf;
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pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
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dbuf = (ushort *) sect_buf;
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debug("in input data base for read is %lx\n", (unsigned long) pbuf);
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while (words--) {
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EIEIO;
|
|
*dbuf++ = *pbuf;
|
|
EIEIO;
|
|
*dbuf++ = *pbuf;
|
|
}
|
|
}
|
|
#else /* ! CONFIG_IDE_SWAP_IO */
|
|
__weak void ide_input_data(int dev, ulong *sect_buf, int words)
|
|
{
|
|
#if defined(CONFIG_IDE_AHB)
|
|
ide_read_data(dev, sect_buf, words);
|
|
#else
|
|
insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1);
|
|
#endif
|
|
}
|
|
|
|
#endif /* CONFIG_IDE_SWAP_IO */
|
|
|
|
/* -------------------------------------------------------------------------
|
|
*/
|
|
static void ide_ident(block_dev_desc_t *dev_desc)
|
|
{
|
|
unsigned char c;
|
|
hd_driveid_t iop;
|
|
|
|
#ifdef CONFIG_ATAPI
|
|
int retries = 0;
|
|
#endif
|
|
int device;
|
|
|
|
device = dev_desc->dev;
|
|
printf(" Device %d: ", device);
|
|
|
|
ide_led(DEVICE_LED(device), 1); /* LED on */
|
|
/* Select device
|
|
*/
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
|
|
dev_desc->if_type = IF_TYPE_IDE;
|
|
#ifdef CONFIG_ATAPI
|
|
|
|
retries = 0;
|
|
|
|
/* Warning: This will be tricky to read */
|
|
while (retries <= 1) {
|
|
/* check signature */
|
|
if ((ide_inb(device, ATA_SECT_CNT) == 0x01) &&
|
|
(ide_inb(device, ATA_SECT_NUM) == 0x01) &&
|
|
(ide_inb(device, ATA_CYL_LOW) == 0x14) &&
|
|
(ide_inb(device, ATA_CYL_HIGH) == 0xEB)) {
|
|
/* ATAPI Signature found */
|
|
dev_desc->if_type = IF_TYPE_ATAPI;
|
|
/*
|
|
* Start Ident Command
|
|
*/
|
|
ide_outb(device, ATA_COMMAND, ATAPI_CMD_IDENT);
|
|
/*
|
|
* Wait for completion - ATAPI devices need more time
|
|
* to become ready
|
|
*/
|
|
c = ide_wait(device, ATAPI_TIME_OUT);
|
|
} else
|
|
#endif
|
|
{
|
|
/*
|
|
* Start Ident Command
|
|
*/
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_IDENT);
|
|
|
|
/*
|
|
* Wait for completion
|
|
*/
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
}
|
|
ide_led(DEVICE_LED(device), 0); /* LED off */
|
|
|
|
if (((c & ATA_STAT_DRQ) == 0) ||
|
|
((c & (ATA_STAT_FAULT | ATA_STAT_ERR)) != 0)) {
|
|
#ifdef CONFIG_ATAPI
|
|
{
|
|
/*
|
|
* Need to soft reset the device
|
|
* in case it's an ATAPI...
|
|
*/
|
|
debug("Retrying...\n");
|
|
ide_outb(device, ATA_DEV_HD,
|
|
ATA_LBA | ATA_DEVICE(device));
|
|
udelay(100000);
|
|
ide_outb(device, ATA_COMMAND, 0x08);
|
|
udelay(500000); /* 500 ms */
|
|
}
|
|
/*
|
|
* Select device
|
|
*/
|
|
ide_outb(device, ATA_DEV_HD,
|
|
ATA_LBA | ATA_DEVICE(device));
|
|
retries++;
|
|
#else
|
|
return;
|
|
#endif
|
|
}
|
|
#ifdef CONFIG_ATAPI
|
|
else
|
|
break;
|
|
} /* see above - ugly to read */
|
|
|
|
if (retries == 2) /* Not found */
|
|
return;
|
|
#endif
|
|
|
|
ide_input_swap_data(device, (ulong *)&iop, ATA_SECTORWORDS);
|
|
|
|
ident_cpy((unsigned char *) dev_desc->revision, iop.fw_rev,
|
|
sizeof(dev_desc->revision));
|
|
ident_cpy((unsigned char *) dev_desc->vendor, iop.model,
|
|
sizeof(dev_desc->vendor));
|
|
ident_cpy((unsigned char *) dev_desc->product, iop.serial_no,
|
|
sizeof(dev_desc->product));
|
|
#ifdef __LITTLE_ENDIAN
|
|
/*
|
|
* firmware revision, model, and serial number have Big Endian Byte
|
|
* order in Word. Convert all three to little endian.
|
|
*
|
|
* See CF+ and CompactFlash Specification Revision 2.0:
|
|
* 6.2.1.6: Identify Drive, Table 39 for more details
|
|
*/
|
|
|
|
strswab(dev_desc->revision);
|
|
strswab(dev_desc->vendor);
|
|
strswab(dev_desc->product);
|
|
#endif /* __LITTLE_ENDIAN */
|
|
|
|
if ((iop.config & 0x0080) == 0x0080)
|
|
dev_desc->removable = 1;
|
|
else
|
|
dev_desc->removable = 0;
|
|
|
|
#ifdef CONFIG_ATAPI
|
|
if (dev_desc->if_type == IF_TYPE_ATAPI) {
|
|
atapi_inquiry(dev_desc);
|
|
return;
|
|
}
|
|
#endif /* CONFIG_ATAPI */
|
|
|
|
#ifdef __BIG_ENDIAN
|
|
/* swap shorts */
|
|
dev_desc->lba = (iop.lba_capacity << 16) | (iop.lba_capacity >> 16);
|
|
#else /* ! __BIG_ENDIAN */
|
|
/*
|
|
* do not swap shorts on little endian
|
|
*
|
|
* See CF+ and CompactFlash Specification Revision 2.0:
|
|
* 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
|
|
*/
|
|
dev_desc->lba = iop.lba_capacity;
|
|
#endif /* __BIG_ENDIAN */
|
|
|
|
#ifdef CONFIG_LBA48
|
|
if (iop.command_set_2 & 0x0400) { /* LBA 48 support */
|
|
dev_desc->lba48 = 1;
|
|
dev_desc->lba = (unsigned long long) iop.lba48_capacity[0] |
|
|
((unsigned long long) iop.lba48_capacity[1] << 16) |
|
|
((unsigned long long) iop.lba48_capacity[2] << 32) |
|
|
((unsigned long long) iop.lba48_capacity[3] << 48);
|
|
} else {
|
|
dev_desc->lba48 = 0;
|
|
}
|
|
#endif /* CONFIG_LBA48 */
|
|
/* assuming HD */
|
|
dev_desc->type = DEV_TYPE_HARDDISK;
|
|
dev_desc->blksz = ATA_BLOCKSIZE;
|
|
dev_desc->log2blksz = LOG2(dev_desc->blksz);
|
|
dev_desc->lun = 0; /* just to fill something in... */
|
|
|
|
#if 0 /* only used to test the powersaving mode,
|
|
* if enabled, the drive goes after 5 sec
|
|
* in standby mode */
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
ide_outb(device, ATA_SECT_CNT, 1);
|
|
ide_outb(device, ATA_LBA_LOW, 0);
|
|
ide_outb(device, ATA_LBA_MID, 0);
|
|
ide_outb(device, ATA_LBA_HIGH, 0);
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
|
|
ide_outb(device, ATA_COMMAND, 0xe3);
|
|
udelay(50);
|
|
c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */
|
|
#endif
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
ulong ide_read(int device, lbaint_t blknr, lbaint_t blkcnt, void *buffer)
|
|
{
|
|
ulong n = 0;
|
|
unsigned char c;
|
|
unsigned char pwrsave = 0; /* power save */
|
|
|
|
#ifdef CONFIG_LBA48
|
|
unsigned char lba48 = 0;
|
|
|
|
if (blknr & 0x0000fffff0000000ULL) {
|
|
/* more than 28 bits used, use 48bit mode */
|
|
lba48 = 1;
|
|
}
|
|
#endif
|
|
debug("ide_read dev %d start " LBAF ", blocks " LBAF " buffer at %lX\n",
|
|
device, blknr, blkcnt, (ulong) buffer);
|
|
|
|
ide_led(DEVICE_LED(device), 1); /* LED on */
|
|
|
|
/* Select device
|
|
*/
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
|
|
if (c & ATA_STAT_BUSY) {
|
|
printf("IDE read: device %d not ready\n", device);
|
|
goto IDE_READ_E;
|
|
}
|
|
|
|
/* first check if the drive is in Powersaving mode, if yes,
|
|
* increase the timeout value */
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_CHK_PWR);
|
|
udelay(50);
|
|
|
|
c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */
|
|
|
|
if (c & ATA_STAT_BUSY) {
|
|
printf("IDE read: device %d not ready\n", device);
|
|
goto IDE_READ_E;
|
|
}
|
|
if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
|
|
printf("No Powersaving mode %X\n", c);
|
|
} else {
|
|
c = ide_inb(device, ATA_SECT_CNT);
|
|
debug("Powersaving %02X\n", c);
|
|
if (c == 0)
|
|
pwrsave = 1;
|
|
}
|
|
|
|
|
|
while (blkcnt-- > 0) {
|
|
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
|
|
if (c & ATA_STAT_BUSY) {
|
|
printf("IDE read: device %d not ready\n", device);
|
|
break;
|
|
}
|
|
#ifdef CONFIG_LBA48
|
|
if (lba48) {
|
|
/* write high bits */
|
|
ide_outb(device, ATA_SECT_CNT, 0);
|
|
ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
|
|
#ifdef CONFIG_SYS_64BIT_LBA
|
|
ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
|
|
ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
|
|
#else
|
|
ide_outb(device, ATA_LBA_MID, 0);
|
|
ide_outb(device, ATA_LBA_HIGH, 0);
|
|
#endif
|
|
}
|
|
#endif
|
|
ide_outb(device, ATA_SECT_CNT, 1);
|
|
ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
|
|
ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
|
|
ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
|
|
|
|
#ifdef CONFIG_LBA48
|
|
if (lba48) {
|
|
ide_outb(device, ATA_DEV_HD,
|
|
ATA_LBA | ATA_DEVICE(device));
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_READ_EXT);
|
|
|
|
} else
|
|
#endif
|
|
{
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA |
|
|
ATA_DEVICE(device) | ((blknr >> 24) & 0xF));
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_READ);
|
|
}
|
|
|
|
udelay(50);
|
|
|
|
if (pwrsave) {
|
|
/* may take up to 4 sec */
|
|
c = ide_wait(device, IDE_SPIN_UP_TIME_OUT);
|
|
pwrsave = 0;
|
|
} else {
|
|
/* can't take over 500 ms */
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
}
|
|
|
|
if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) !=
|
|
ATA_STAT_DRQ) {
|
|
printf("Error (no IRQ) dev %d blk " LBAF ": status "
|
|
"%#02x\n", device, blknr, c);
|
|
break;
|
|
}
|
|
|
|
ide_input_data(device, buffer, ATA_SECTORWORDS);
|
|
(void) ide_inb(device, ATA_STATUS); /* clear IRQ */
|
|
|
|
++n;
|
|
++blknr;
|
|
buffer += ATA_BLOCKSIZE;
|
|
}
|
|
IDE_READ_E:
|
|
ide_led(DEVICE_LED(device), 0); /* LED off */
|
|
return (n);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
|
|
ulong ide_write(int device, lbaint_t blknr, lbaint_t blkcnt, const void *buffer)
|
|
{
|
|
ulong n = 0;
|
|
unsigned char c;
|
|
|
|
#ifdef CONFIG_LBA48
|
|
unsigned char lba48 = 0;
|
|
|
|
if (blknr & 0x0000fffff0000000ULL) {
|
|
/* more than 28 bits used, use 48bit mode */
|
|
lba48 = 1;
|
|
}
|
|
#endif
|
|
|
|
ide_led(DEVICE_LED(device), 1); /* LED on */
|
|
|
|
/* Select device
|
|
*/
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
|
|
|
|
while (blkcnt-- > 0) {
|
|
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
|
|
if (c & ATA_STAT_BUSY) {
|
|
printf("IDE read: device %d not ready\n", device);
|
|
goto WR_OUT;
|
|
}
|
|
#ifdef CONFIG_LBA48
|
|
if (lba48) {
|
|
/* write high bits */
|
|
ide_outb(device, ATA_SECT_CNT, 0);
|
|
ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
|
|
#ifdef CONFIG_SYS_64BIT_LBA
|
|
ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
|
|
ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
|
|
#else
|
|
ide_outb(device, ATA_LBA_MID, 0);
|
|
ide_outb(device, ATA_LBA_HIGH, 0);
|
|
#endif
|
|
}
|
|
#endif
|
|
ide_outb(device, ATA_SECT_CNT, 1);
|
|
ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
|
|
ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
|
|
ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
|
|
|
|
#ifdef CONFIG_LBA48
|
|
if (lba48) {
|
|
ide_outb(device, ATA_DEV_HD,
|
|
ATA_LBA | ATA_DEVICE(device));
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE_EXT);
|
|
|
|
} else
|
|
#endif
|
|
{
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA |
|
|
ATA_DEVICE(device) | ((blknr >> 24) & 0xF));
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE);
|
|
}
|
|
|
|
udelay(50);
|
|
|
|
/* can't take over 500 ms */
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
|
|
if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) !=
|
|
ATA_STAT_DRQ) {
|
|
printf("Error (no IRQ) dev %d blk " LBAF ": status "
|
|
"%#02x\n", device, blknr, c);
|
|
goto WR_OUT;
|
|
}
|
|
|
|
ide_output_data(device, buffer, ATA_SECTORWORDS);
|
|
c = ide_inb(device, ATA_STATUS); /* clear IRQ */
|
|
++n;
|
|
++blknr;
|
|
buffer += ATA_BLOCKSIZE;
|
|
}
|
|
WR_OUT:
|
|
ide_led(DEVICE_LED(device), 0); /* LED off */
|
|
return (n);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* copy src to dest, skipping leading and trailing blanks and null
|
|
* terminate the string
|
|
* "len" is the size of available memory including the terminating '\0'
|
|
*/
|
|
static void ident_cpy(unsigned char *dst, unsigned char *src,
|
|
unsigned int len)
|
|
{
|
|
unsigned char *end, *last;
|
|
|
|
last = dst;
|
|
end = src + len - 1;
|
|
|
|
/* reserve space for '\0' */
|
|
if (len < 2)
|
|
goto OUT;
|
|
|
|
/* skip leading white space */
|
|
while ((*src) && (src < end) && (*src == ' '))
|
|
++src;
|
|
|
|
/* copy string, omitting trailing white space */
|
|
while ((*src) && (src < end)) {
|
|
*dst++ = *src;
|
|
if (*src++ != ' ')
|
|
last = dst;
|
|
}
|
|
OUT:
|
|
*last = '\0';
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* Wait until Busy bit is off, or timeout (in ms)
|
|
* Return last status
|
|
*/
|
|
static uchar ide_wait(int dev, ulong t)
|
|
{
|
|
ulong delay = 10 * t; /* poll every 100 us */
|
|
uchar c;
|
|
|
|
while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
|
|
udelay(100);
|
|
if (delay-- == 0)
|
|
break;
|
|
}
|
|
return (c);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
#ifdef CONFIG_IDE_RESET
|
|
extern void ide_set_reset(int idereset);
|
|
|
|
static void ide_reset(void)
|
|
{
|
|
int i;
|
|
|
|
curr_device = -1;
|
|
for (i = 0; i < CONFIG_SYS_IDE_MAXBUS; ++i)
|
|
ide_bus_ok[i] = 0;
|
|
for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i)
|
|
ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
|
|
|
|
ide_set_reset(1); /* assert reset */
|
|
|
|
/* the reset signal shall be asserted for et least 25 us */
|
|
udelay(25);
|
|
|
|
WATCHDOG_RESET();
|
|
|
|
/* de-assert RESET signal */
|
|
ide_set_reset(0);
|
|
|
|
/* wait 250 ms */
|
|
for (i = 0; i < 250; ++i)
|
|
udelay(1000);
|
|
}
|
|
|
|
#endif /* CONFIG_IDE_RESET */
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_OF_IDE_FIXUP)
|
|
int ide_device_present(int dev)
|
|
{
|
|
if (dev >= CONFIG_SYS_IDE_MAXBUS)
|
|
return 0;
|
|
return (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1);
|
|
}
|
|
#endif
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
#ifdef CONFIG_ATAPI
|
|
/****************************************************************************
|
|
* ATAPI Support
|
|
*/
|
|
|
|
#if defined(CONFIG_IDE_SWAP_IO)
|
|
/* since ATAPI may use commands with not 4 bytes alligned length
|
|
* we have our own transfer functions, 2 bytes alligned */
|
|
__weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
|
|
{
|
|
ushort *dbuf;
|
|
volatile ushort *pbuf;
|
|
|
|
pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
|
|
dbuf = (ushort *) sect_buf;
|
|
|
|
debug("in output data shorts base for read is %lx\n",
|
|
(unsigned long) pbuf);
|
|
|
|
while (shorts--) {
|
|
EIEIO;
|
|
*pbuf = *dbuf++;
|
|
}
|
|
}
|
|
|
|
__weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
|
|
{
|
|
ushort *dbuf;
|
|
volatile ushort *pbuf;
|
|
|
|
pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
|
|
dbuf = (ushort *) sect_buf;
|
|
|
|
debug("in input data shorts base for read is %lx\n",
|
|
(unsigned long) pbuf);
|
|
|
|
while (shorts--) {
|
|
EIEIO;
|
|
*dbuf++ = *pbuf;
|
|
}
|
|
}
|
|
|
|
#else /* ! CONFIG_IDE_SWAP_IO */
|
|
__weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
|
|
{
|
|
outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts);
|
|
}
|
|
|
|
__weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
|
|
{
|
|
insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts);
|
|
}
|
|
|
|
#endif /* CONFIG_IDE_SWAP_IO */
|
|
|
|
/*
|
|
* Wait until (Status & mask) == res, or timeout (in ms)
|
|
* Return last status
|
|
* This is used since some ATAPI CD ROMs clears their Busy Bit first
|
|
* and then they set their DRQ Bit
|
|
*/
|
|
static uchar atapi_wait_mask(int dev, ulong t, uchar mask, uchar res)
|
|
{
|
|
ulong delay = 10 * t; /* poll every 100 us */
|
|
uchar c;
|
|
|
|
/* prevents to read the status before valid */
|
|
c = ide_inb(dev, ATA_DEV_CTL);
|
|
|
|
while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) {
|
|
/* break if error occurs (doesn't make sense to wait more) */
|
|
if ((c & ATA_STAT_ERR) == ATA_STAT_ERR)
|
|
break;
|
|
udelay(100);
|
|
if (delay-- == 0)
|
|
break;
|
|
}
|
|
return (c);
|
|
}
|
|
|
|
/*
|
|
* issue an atapi command
|
|
*/
|
|
unsigned char atapi_issue(int device, unsigned char *ccb, int ccblen,
|
|
unsigned char *buffer, int buflen)
|
|
{
|
|
unsigned char c, err, mask, res;
|
|
int n;
|
|
|
|
ide_led(DEVICE_LED(device), 1); /* LED on */
|
|
|
|
/* Select device
|
|
*/
|
|
mask = ATA_STAT_BUSY | ATA_STAT_DRQ;
|
|
res = 0;
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
|
|
c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
|
|
if ((c & mask) != res) {
|
|
printf("ATAPI_ISSUE: device %d not ready status %X\n", device,
|
|
c);
|
|
err = 0xFF;
|
|
goto AI_OUT;
|
|
}
|
|
/* write taskfile */
|
|
ide_outb(device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */
|
|
ide_outb(device, ATA_SECT_CNT, 0);
|
|
ide_outb(device, ATA_SECT_NUM, 0);
|
|
ide_outb(device, ATA_CYL_LOW, (unsigned char) (buflen & 0xFF));
|
|
ide_outb(device, ATA_CYL_HIGH,
|
|
(unsigned char) ((buflen >> 8) & 0xFF));
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
|
|
|
|
ide_outb(device, ATA_COMMAND, ATAPI_CMD_PACKET);
|
|
udelay(50);
|
|
|
|
mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR;
|
|
res = ATA_STAT_DRQ;
|
|
c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
|
|
|
|
if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */
|
|
printf("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n",
|
|
device, c);
|
|
err = 0xFF;
|
|
goto AI_OUT;
|
|
}
|
|
|
|
/* write command block */
|
|
ide_output_data_shorts(device, (unsigned short *) ccb, ccblen / 2);
|
|
|
|
/* ATAPI Command written wait for completition */
|
|
udelay(5000); /* device must set bsy */
|
|
|
|
mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR;
|
|
/*
|
|
* if no data wait for DRQ = 0 BSY = 0
|
|
* if data wait for DRQ = 1 BSY = 0
|
|
*/
|
|
res = 0;
|
|
if (buflen)
|
|
res = ATA_STAT_DRQ;
|
|
c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
|
|
if ((c & mask) != res) {
|
|
if (c & ATA_STAT_ERR) {
|
|
err = (ide_inb(device, ATA_ERROR_REG)) >> 4;
|
|
debug("atapi_issue 1 returned sense key %X status %02X\n",
|
|
err, c);
|
|
} else {
|
|
printf("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n",
|
|
ccb[0], c);
|
|
err = 0xFF;
|
|
}
|
|
goto AI_OUT;
|
|
}
|
|
n = ide_inb(device, ATA_CYL_HIGH);
|
|
n <<= 8;
|
|
n += ide_inb(device, ATA_CYL_LOW);
|
|
if (n > buflen) {
|
|
printf("ERROR, transfer bytes %d requested only %d\n", n,
|
|
buflen);
|
|
err = 0xff;
|
|
goto AI_OUT;
|
|
}
|
|
if ((n == 0) && (buflen < 0)) {
|
|
printf("ERROR, transfer bytes %d requested %d\n", n, buflen);
|
|
err = 0xff;
|
|
goto AI_OUT;
|
|
}
|
|
if (n != buflen) {
|
|
debug("WARNING, transfer bytes %d not equal with requested %d\n",
|
|
n, buflen);
|
|
}
|
|
if (n != 0) { /* data transfer */
|
|
debug("ATAPI_ISSUE: %d Bytes to transfer\n", n);
|
|
/* we transfer shorts */
|
|
n >>= 1;
|
|
/* ok now decide if it is an in or output */
|
|
if ((ide_inb(device, ATA_SECT_CNT) & 0x02) == 0) {
|
|
debug("Write to device\n");
|
|
ide_output_data_shorts(device,
|
|
(unsigned short *) buffer, n);
|
|
} else {
|
|
debug("Read from device @ %p shorts %d\n", buffer, n);
|
|
ide_input_data_shorts(device,
|
|
(unsigned short *) buffer, n);
|
|
}
|
|
}
|
|
udelay(5000); /* seems that some CD ROMs need this... */
|
|
mask = ATA_STAT_BUSY | ATA_STAT_ERR;
|
|
res = 0;
|
|
c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
|
|
if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
|
|
err = (ide_inb(device, ATA_ERROR_REG) >> 4);
|
|
debug("atapi_issue 2 returned sense key %X status %X\n", err,
|
|
c);
|
|
} else {
|
|
err = 0;
|
|
}
|
|
AI_OUT:
|
|
ide_led(DEVICE_LED(device), 0); /* LED off */
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* sending the command to atapi_issue. If an status other than good
|
|
* returns, an request_sense will be issued
|
|
*/
|
|
|
|
#define ATAPI_DRIVE_NOT_READY 100
|
|
#define ATAPI_UNIT_ATTN 10
|
|
|
|
unsigned char atapi_issue_autoreq(int device,
|
|
unsigned char *ccb,
|
|
int ccblen,
|
|
unsigned char *buffer, int buflen)
|
|
{
|
|
unsigned char sense_data[18], sense_ccb[12];
|
|
unsigned char res, key, asc, ascq;
|
|
int notready, unitattn;
|
|
|
|
unitattn = ATAPI_UNIT_ATTN;
|
|
notready = ATAPI_DRIVE_NOT_READY;
|
|
|
|
retry:
|
|
res = atapi_issue(device, ccb, ccblen, buffer, buflen);
|
|
if (res == 0)
|
|
return 0; /* Ok */
|
|
|
|
if (res == 0xFF)
|
|
return 0xFF; /* error */
|
|
|
|
debug("(auto_req)atapi_issue returned sense key %X\n", res);
|
|
|
|
memset(sense_ccb, 0, sizeof(sense_ccb));
|
|
memset(sense_data, 0, sizeof(sense_data));
|
|
sense_ccb[0] = ATAPI_CMD_REQ_SENSE;
|
|
sense_ccb[4] = 18; /* allocation Length */
|
|
|
|
res = atapi_issue(device, sense_ccb, 12, sense_data, 18);
|
|
key = (sense_data[2] & 0xF);
|
|
asc = (sense_data[12]);
|
|
ascq = (sense_data[13]);
|
|
|
|
debug("ATAPI_CMD_REQ_SENSE returned %x\n", res);
|
|
debug(" Sense page: %02X key %02X ASC %02X ASCQ %02X\n",
|
|
sense_data[0], key, asc, ascq);
|
|
|
|
if ((key == 0))
|
|
return 0; /* ok device ready */
|
|
|
|
if ((key == 6) || (asc == 0x29) || (asc == 0x28)) { /* Unit Attention */
|
|
if (unitattn-- > 0) {
|
|
udelay(200 * 1000);
|
|
goto retry;
|
|
}
|
|
printf("Unit Attention, tried %d\n", ATAPI_UNIT_ATTN);
|
|
goto error;
|
|
}
|
|
if ((asc == 0x4) && (ascq == 0x1)) {
|
|
/* not ready, but will be ready soon */
|
|
if (notready-- > 0) {
|
|
udelay(200 * 1000);
|
|
goto retry;
|
|
}
|
|
printf("Drive not ready, tried %d times\n",
|
|
ATAPI_DRIVE_NOT_READY);
|
|
goto error;
|
|
}
|
|
if (asc == 0x3a) {
|
|
debug("Media not present\n");
|
|
goto error;
|
|
}
|
|
|
|
printf("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n", key, asc,
|
|
ascq);
|
|
error:
|
|
debug("ERROR Sense key %02X ASC %02X ASCQ %02X\n", key, asc, ascq);
|
|
return (0xFF);
|
|
}
|
|
|
|
|
|
static void atapi_inquiry(block_dev_desc_t *dev_desc)
|
|
{
|
|
unsigned char ccb[12]; /* Command descriptor block */
|
|
unsigned char iobuf[64]; /* temp buf */
|
|
unsigned char c;
|
|
int device;
|
|
|
|
device = dev_desc->dev;
|
|
dev_desc->type = DEV_TYPE_UNKNOWN; /* not yet valid */
|
|
dev_desc->block_read = atapi_read;
|
|
|
|
memset(ccb, 0, sizeof(ccb));
|
|
memset(iobuf, 0, sizeof(iobuf));
|
|
|
|
ccb[0] = ATAPI_CMD_INQUIRY;
|
|
ccb[4] = 40; /* allocation Legnth */
|
|
c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 40);
|
|
|
|
debug("ATAPI_CMD_INQUIRY returned %x\n", c);
|
|
if (c != 0)
|
|
return;
|
|
|
|
/* copy device ident strings */
|
|
ident_cpy((unsigned char *) dev_desc->vendor, &iobuf[8], 8);
|
|
ident_cpy((unsigned char *) dev_desc->product, &iobuf[16], 16);
|
|
ident_cpy((unsigned char *) dev_desc->revision, &iobuf[32], 5);
|
|
|
|
dev_desc->lun = 0;
|
|
dev_desc->lba = 0;
|
|
dev_desc->blksz = 0;
|
|
dev_desc->log2blksz = LOG2_INVALID(typeof(dev_desc->log2blksz));
|
|
dev_desc->type = iobuf[0] & 0x1f;
|
|
|
|
if ((iobuf[1] & 0x80) == 0x80)
|
|
dev_desc->removable = 1;
|
|
else
|
|
dev_desc->removable = 0;
|
|
|
|
memset(ccb, 0, sizeof(ccb));
|
|
memset(iobuf, 0, sizeof(iobuf));
|
|
ccb[0] = ATAPI_CMD_START_STOP;
|
|
ccb[4] = 0x03; /* start */
|
|
|
|
c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 0);
|
|
|
|
debug("ATAPI_CMD_START_STOP returned %x\n", c);
|
|
if (c != 0)
|
|
return;
|
|
|
|
memset(ccb, 0, sizeof(ccb));
|
|
memset(iobuf, 0, sizeof(iobuf));
|
|
c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 0);
|
|
|
|
debug("ATAPI_CMD_UNIT_TEST_READY returned %x\n", c);
|
|
if (c != 0)
|
|
return;
|
|
|
|
memset(ccb, 0, sizeof(ccb));
|
|
memset(iobuf, 0, sizeof(iobuf));
|
|
ccb[0] = ATAPI_CMD_READ_CAP;
|
|
c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 8);
|
|
debug("ATAPI_CMD_READ_CAP returned %x\n", c);
|
|
if (c != 0)
|
|
return;
|
|
|
|
debug("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n",
|
|
iobuf[0], iobuf[1], iobuf[2], iobuf[3],
|
|
iobuf[4], iobuf[5], iobuf[6], iobuf[7]);
|
|
|
|
dev_desc->lba = ((unsigned long) iobuf[0] << 24) +
|
|
((unsigned long) iobuf[1] << 16) +
|
|
((unsigned long) iobuf[2] << 8) + ((unsigned long) iobuf[3]);
|
|
dev_desc->blksz = ((unsigned long) iobuf[4] << 24) +
|
|
((unsigned long) iobuf[5] << 16) +
|
|
((unsigned long) iobuf[6] << 8) + ((unsigned long) iobuf[7]);
|
|
dev_desc->log2blksz = LOG2(dev_desc->blksz);
|
|
#ifdef CONFIG_LBA48
|
|
/* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */
|
|
dev_desc->lba48 = 0;
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* atapi_read:
|
|
* we transfer only one block per command, since the multiple DRQ per
|
|
* command is not yet implemented
|
|
*/
|
|
#define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */
|
|
#define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */
|
|
#define ATAPI_READ_MAX_BLOCK (ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE)
|
|
|
|
ulong atapi_read(int device, ulong blknr, lbaint_t blkcnt, void *buffer)
|
|
{
|
|
ulong n = 0;
|
|
unsigned char ccb[12]; /* Command descriptor block */
|
|
ulong cnt;
|
|
|
|
debug("atapi_read dev %d start %lX, blocks " LBAF " buffer at %lX\n",
|
|
device, blknr, blkcnt, (ulong) buffer);
|
|
|
|
do {
|
|
if (blkcnt > ATAPI_READ_MAX_BLOCK)
|
|
cnt = ATAPI_READ_MAX_BLOCK;
|
|
else
|
|
cnt = blkcnt;
|
|
|
|
ccb[0] = ATAPI_CMD_READ_12;
|
|
ccb[1] = 0; /* reserved */
|
|
ccb[2] = (unsigned char) (blknr >> 24) & 0xFF; /* MSB Block */
|
|
ccb[3] = (unsigned char) (blknr >> 16) & 0xFF; /* */
|
|
ccb[4] = (unsigned char) (blknr >> 8) & 0xFF;
|
|
ccb[5] = (unsigned char) blknr & 0xFF; /* LSB Block */
|
|
ccb[6] = (unsigned char) (cnt >> 24) & 0xFF; /* MSB Block cnt */
|
|
ccb[7] = (unsigned char) (cnt >> 16) & 0xFF;
|
|
ccb[8] = (unsigned char) (cnt >> 8) & 0xFF;
|
|
ccb[9] = (unsigned char) cnt & 0xFF; /* LSB Block */
|
|
ccb[10] = 0; /* reserved */
|
|
ccb[11] = 0; /* reserved */
|
|
|
|
if (atapi_issue_autoreq(device, ccb, 12,
|
|
(unsigned char *) buffer,
|
|
cnt * ATAPI_READ_BLOCK_SIZE)
|
|
== 0xFF) {
|
|
return (n);
|
|
}
|
|
n += cnt;
|
|
blkcnt -= cnt;
|
|
blknr += cnt;
|
|
buffer += (cnt * ATAPI_READ_BLOCK_SIZE);
|
|
} while (blkcnt > 0);
|
|
return (n);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
#endif /* CONFIG_ATAPI */
|
|
|
|
U_BOOT_CMD(ide, 5, 1, do_ide,
|
|
"IDE sub-system",
|
|
"reset - reset IDE controller\n"
|
|
"ide info - show available IDE devices\n"
|
|
"ide device [dev] - show or set current device\n"
|
|
"ide part [dev] - print partition table of one or all IDE devices\n"
|
|
"ide read addr blk# cnt\n"
|
|
"ide write addr blk# cnt - read/write `cnt'"
|
|
" blocks starting at block `blk#'\n"
|
|
" to/from memory address `addr'");
|
|
|
|
U_BOOT_CMD(diskboot, 3, 1, do_diskboot,
|
|
"boot from IDE device", "loadAddr dev:part");
|
|
|