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