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