145 lines
3.8 KiB
C
145 lines
3.8 KiB
C
/*
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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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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#include <common.h>
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#include <command.h>
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#include <part.h>
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#if defined(CONFIG_CMD_IDE) || defined(CONFIG_CMD_SCSI) || \
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defined(CONFIG_USB_STORAGE)
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int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
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char *const argv[])
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{
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int dev, part;
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ulong addr = CONFIG_SYS_LOAD_ADDR;
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ulong cnt;
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disk_partition_t info;
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image_header_t *hdr;
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block_dev_desc_t *dev_desc;
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#if defined(CONFIG_FIT)
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const void *fit_hdr = NULL;
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#endif
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bootstage_mark(BOOTSTAGE_ID_IDE_START);
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if (argc > 3) {
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bootstage_error(BOOTSTAGE_ID_IDE_ADDR);
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return CMD_RET_USAGE;
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}
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bootstage_mark(BOOTSTAGE_ID_IDE_ADDR);
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if (argc > 1)
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addr = simple_strtoul(argv[1], NULL, 16);
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bootstage_mark(BOOTSTAGE_ID_IDE_BOOT_DEVICE);
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part = get_device_and_partition(intf, (argc == 3) ? argv[2] : NULL,
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&dev_desc, &info, 1);
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if (part < 0) {
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bootstage_error(BOOTSTAGE_ID_IDE_TYPE);
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return 1;
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}
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dev = dev_desc->dev;
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bootstage_mark(BOOTSTAGE_ID_IDE_TYPE);
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printf("\nLoading from %s device %d, partition %d: "
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"Name: %.32s Type: %.32s\n", intf, dev, part, info.name,
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info.type);
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debug("First Block: %ld, # of blocks: %ld, Block Size: %ld\n",
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info.start, info.size, info.blksz);
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if (dev_desc->block_read(dev, info.start, 1, (ulong *) addr) != 1) {
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printf("** Read error on %d:%d\n", dev, part);
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bootstage_error(BOOTSTAGE_ID_IDE_PART_READ);
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return 1;
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}
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bootstage_mark(BOOTSTAGE_ID_IDE_PART_READ);
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switch (genimg_get_format((void *) addr)) {
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case IMAGE_FORMAT_LEGACY:
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hdr = (image_header_t *) addr;
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bootstage_mark(BOOTSTAGE_ID_IDE_FORMAT);
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if (!image_check_hcrc(hdr)) {
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puts("\n** Bad Header Checksum **\n");
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bootstage_error(BOOTSTAGE_ID_IDE_CHECKSUM);
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return 1;
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}
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bootstage_mark(BOOTSTAGE_ID_IDE_CHECKSUM);
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image_print_contents(hdr);
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cnt = image_get_image_size(hdr);
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break;
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#if defined(CONFIG_FIT)
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case IMAGE_FORMAT_FIT:
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fit_hdr = (const void *) addr;
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puts("Fit image detected...\n");
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cnt = fit_get_size(fit_hdr);
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break;
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#endif
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default:
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bootstage_error(BOOTSTAGE_ID_IDE_FORMAT);
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puts("** Unknown image type\n");
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return 1;
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}
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cnt += info.blksz - 1;
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cnt /= info.blksz;
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cnt -= 1;
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if (dev_desc->block_read(dev, info.start + 1, cnt,
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(ulong *)(addr + info.blksz)) != cnt) {
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printf("** Read error on %d:%d\n", dev, part);
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bootstage_error(BOOTSTAGE_ID_IDE_READ);
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return 1;
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}
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bootstage_mark(BOOTSTAGE_ID_IDE_READ);
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#if defined(CONFIG_FIT)
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/* This cannot be done earlier,
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* we need complete FIT image in RAM first */
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if (genimg_get_format((void *) addr) == IMAGE_FORMAT_FIT) {
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if (!fit_check_format(fit_hdr)) {
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bootstage_error(BOOTSTAGE_ID_IDE_FIT_READ);
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puts("** Bad FIT image format\n");
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return 1;
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}
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bootstage_mark(BOOTSTAGE_ID_IDE_FIT_READ_OK);
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fit_print_contents(fit_hdr);
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}
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#endif
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flush_cache(addr, (cnt+1)*info.blksz);
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/* Loading ok, update default load address */
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load_addr = addr;
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return bootm_maybe_autostart(cmdtp, argv[0]);
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}
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#endif
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