cmd/disk.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2000-2011
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  */
   6 #include <common.h>
   7 #include <command.h>
   8 #include <cpu_func.h>
   9 #include <part.h>
  10
  11 int 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_LEGACY_IMAGE_FORMAT)
  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_LEGACY_IMAGE_FORMAT)
  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         image_load_addr = addr;
 128
 129         return bootm_maybe_autostart(cmdtp, argv[0]);
 130 }