LXR uboot/cmd/disk.c

   1/*
   2 * (C) Copyright 2000-2011
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7#include <common.h>
   8#include <command.h>
   9#include <part.h>
  10
  11int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
  12                    char *const argv[])
  13{
  14        __maybe_unused int dev;
  15        int part;
  16        ulong addr = CONFIG_SYS_LOAD_ADDR;
  17        ulong cnt;
  18        disk_partition_t info;
  19#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
  20        image_header_t *hdr;
  21#endif
  22        struct blk_desc *dev_desc;
  23
  24#if CONFIG_IS_ENABLED(FIT)
  25        const void *fit_hdr = NULL;
  26#endif
  27
  28        bootstage_mark(BOOTSTAGE_ID_IDE_START);
  29        if (argc > 3) {
  30                bootstage_error(BOOTSTAGE_ID_IDE_ADDR);
  31                return CMD_RET_USAGE;
  32        }
  33        bootstage_mark(BOOTSTAGE_ID_IDE_ADDR);
  34
  35        if (argc > 1)
  36                addr = simple_strtoul(argv[1], NULL, 16);
  37
  38        bootstage_mark(BOOTSTAGE_ID_IDE_BOOT_DEVICE);
  39
  40        part = blk_get_device_part_str(intf, (argc == 3) ? argv[2] : NULL,
  41                                        &dev_desc, &info, 1);
  42        if (part < 0) {
  43                bootstage_error(BOOTSTAGE_ID_IDE_TYPE);
  44                return 1;
  45        }
  46
  47        dev = dev_desc->devnum;
  48        bootstage_mark(BOOTSTAGE_ID_IDE_TYPE);
  49
  50        printf("\nLoading from %s device %d, partition %d: "
  51               "Name: %.32s  Type: %.32s\n", intf, dev, part, info.name,
  52               info.type);
  53
  54        debug("First Block: " LBAFU ",  # of blocks: " LBAFU
  55              ", Block Size: %ld\n",
  56              info.start, info.size, info.blksz);
  57
  58        if (blk_dread(dev_desc, info.start, 1, (ulong *)addr) != 1) {
  59                printf("** Read error on %d:%d\n", dev, part);
  60                bootstage_error(BOOTSTAGE_ID_IDE_PART_READ);
  61                return 1;
  62        }
  63        bootstage_mark(BOOTSTAGE_ID_IDE_PART_READ);
  64
  65        switch (genimg_get_format((void *) addr)) {
  66#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
  67        case IMAGE_FORMAT_LEGACY:
  68                hdr = (image_header_t *) addr;
  69
  70                bootstage_mark(BOOTSTAGE_ID_IDE_FORMAT);
  71
  72                if (!image_check_hcrc(hdr)) {
  73                        puts("\n** Bad Header Checksum **\n");
  74                        bootstage_error(BOOTSTAGE_ID_IDE_CHECKSUM);
  75                        return 1;
  76                }
  77                bootstage_mark(BOOTSTAGE_ID_IDE_CHECKSUM);
  78
  79                image_print_contents(hdr);
  80
  81                cnt = image_get_image_size(hdr);
  82                break;
  83#endif
  84#if CONFIG_IS_ENABLED(FIT)
  85        case IMAGE_FORMAT_FIT:
  86                fit_hdr = (const void *) addr;
  87                puts("Fit image detected...\n");
  88
  89                cnt = fit_get_size(fit_hdr);
  90                break;
  91#endif
  92        default:
  93                bootstage_error(BOOTSTAGE_ID_IDE_FORMAT);
  94                puts("** Unknown image type\n");
  95                return 1;
  96        }
  97
  98        cnt += info.blksz - 1;
  99        cnt /= info.blksz;
 100        cnt -= 1;
 101
 102        if (blk_dread(dev_desc, info.start + 1, cnt,
 103                      (ulong *)(addr + info.blksz)) != cnt) {
 104                printf("** Read error on %d:%d\n", dev, part);
 105                bootstage_error(BOOTSTAGE_ID_IDE_READ);
 106                return 1;
 107        }
 108        bootstage_mark(BOOTSTAGE_ID_IDE_READ);
 109
 110#if CONFIG_IS_ENABLED(FIT)
 111        /* This cannot be done earlier,
 112         * we need complete FIT image in RAM first */
 113        if (genimg_get_format((void *) addr) == IMAGE_FORMAT_FIT) {
 114                if (!fit_check_format(fit_hdr)) {
 115                        bootstage_error(BOOTSTAGE_ID_IDE_FIT_READ);
 116                        puts("** Bad FIT image format\n");
 117                        return 1;
 118                }
 119                bootstage_mark(BOOTSTAGE_ID_IDE_FIT_READ_OK);
 120                fit_print_contents(fit_hdr);
 121        }
 122#endif
 123
 124        flush_cache(addr, (cnt+1)*info.blksz);
 125
 126        /* Loading ok, update default load address */
 127        load_addr = addr;
 128
 129        return bootm_maybe_autostart(cmdtp, argv[0]);
 130}
 131