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 <bootstage.h>
   8 #include <command.h>
   9 #include <cpu_func.h>
  10 #include <image.h>
  11 #include <log.h>
  12 #include <part.h>
  13
  14 int common_diskboot(struct cmd_tbl *cmdtp, const char *intf, int argc,
  15                     char *const argv[])
  16 {
  17         __maybe_unused int dev;
  18         int part;
  19         ulong addr = CONFIG_SYS_LOAD_ADDR;
  20         ulong cnt;
  21         struct disk_partition info;
  22 #if defined(CONFIG_LEGACY_IMAGE_FORMAT)
  23         image_header_t *hdr;
  24 #endif
  25         struct blk_desc *dev_desc;
  26
  27 #if CONFIG_IS_ENABLED(FIT)
  28         const void *fit_hdr = NULL;
  29 #endif
  30
  31         bootstage_mark(BOOTSTAGE_ID_IDE_START);
  32         if (argc > 3) {
  33                 bootstage_error(BOOTSTAGE_ID_IDE_ADDR);
  34                 return CMD_RET_USAGE;
  35         }
  36         bootstage_mark(BOOTSTAGE_ID_IDE_ADDR);
  37
  38         if (argc > 1)
  39                 addr = simple_strtoul(argv[1], NULL, 16);
  40
  41         bootstage_mark(BOOTSTAGE_ID_IDE_BOOT_DEVICE);
  42
  43         part = blk_get_device_part_str(intf, (argc == 3) ? argv[2] : NULL,
  44                                         &dev_desc, &info, 1);
  45         if (part < 0) {
  46                 bootstage_error(BOOTSTAGE_ID_IDE_TYPE);
  47                 return 1;
  48         }
  49
  50         dev = dev_desc->devnum;
  51         bootstage_mark(BOOTSTAGE_ID_IDE_TYPE);
  52
  53         printf("\nLoading from %s device %d, partition %d: "
  54                "Name: %.32s  Type: %.32s\n", intf, dev, part, info.name,
  55                info.type);
  56
  57         debug("First Block: " LBAFU ",  # of blocks: " LBAFU
  58               ", Block Size: %ld\n",
  59               info.start, info.size, info.blksz);
  60
  61         if (blk_dread(dev_desc, info.start, 1, (ulong *)addr) != 1) {
  62                 printf("** Read error on %d:%d\n", dev, part);
  63                 bootstage_error(BOOTSTAGE_ID_IDE_PART_READ);
  64                 return 1;
  65         }
  66         bootstage_mark(BOOTSTAGE_ID_IDE_PART_READ);
  67
  68         switch (genimg_get_format((void *) addr)) {
  69 #if defined(CONFIG_LEGACY_IMAGE_FORMAT)
  70         case IMAGE_FORMAT_LEGACY:
  71                 hdr = (image_header_t *) addr;
  72
  73                 bootstage_mark(BOOTSTAGE_ID_IDE_FORMAT);
  74
  75                 if (!image_check_hcrc(hdr)) {
  76                         puts("\n** Bad Header Checksum **\n");
  77                         bootstage_error(BOOTSTAGE_ID_IDE_CHECKSUM);
  78                         return 1;
  79                 }
  80                 bootstage_mark(BOOTSTAGE_ID_IDE_CHECKSUM);
  81
  82                 image_print_contents(hdr);
  83
  84                 cnt = image_get_image_size(hdr);
  85                 break;
  86 #endif
  87 #if CONFIG_IS_ENABLED(FIT)
  88         case IMAGE_FORMAT_FIT:
  89                 fit_hdr = (const void *) addr;
  90                 puts("Fit image detected...\n");
  91
  92                 cnt = fit_get_size(fit_hdr);
  93                 break;
  94 #endif
  95         default:
  96                 bootstage_error(BOOTSTAGE_ID_IDE_FORMAT);
  97                 puts("** Unknown image type\n");
  98                 return 1;
  99         }
 100
 101         cnt += info.blksz - 1;
 102         cnt /= info.blksz;
 103         cnt -= 1;
 104
 105         if (blk_dread(dev_desc, info.start + 1, cnt,
 106                       (ulong *)(addr + info.blksz)) != cnt) {
 107                 printf("** Read error on %d:%d\n", dev, part);
 108                 bootstage_error(BOOTSTAGE_ID_IDE_READ);
 109                 return 1;
 110         }
 111         bootstage_mark(BOOTSTAGE_ID_IDE_READ);
 112
 113 #if CONFIG_IS_ENABLED(FIT)
 114         /* This cannot be done earlier,
 115          * we need complete FIT image in RAM first */
 116         if (genimg_get_format((void *) addr) == IMAGE_FORMAT_FIT) {
 117                 if (!fit_check_format(fit_hdr)) {
 118                         bootstage_error(BOOTSTAGE_ID_IDE_FIT_READ);
 119                         puts("** Bad FIT image format\n");
 120                         return 1;
 121                 }
 122                 bootstage_mark(BOOTSTAGE_ID_IDE_FIT_READ_OK);
 123                 fit_print_contents(fit_hdr);
 124         }
 125 #endif
 126
 127         flush_cache(addr, (cnt+1)*info.blksz);
 128
 129         /* Loading ok, update default load address */
 130         image_load_addr = addr;
 131
 132         return bootm_maybe_autostart(cmdtp, argv[0]);
 133 }