git.sur5r.net Git - u-boot/blob - common/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
  11 #if defined(CONFIG_CMD_IDE) || defined(CONFIG_CMD_SCSI) || \
  12         defined(CONFIG_USB_STORAGE)
  13 int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
  14                     char *const argv[])
  15 {
  16         int dev, part;
  17         ulong addr = CONFIG_SYS_LOAD_ADDR;
  18         ulong cnt;
  19         disk_partition_t info;
  20         image_header_t *hdr;
  21         block_dev_desc_t *dev_desc;
  22
  23 #if defined(CONFIG_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 = get_device_and_partition(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->dev;
  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 (dev_desc->block_read(dev, 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         case IMAGE_FORMAT_LEGACY:
  66                 hdr = (image_header_t *) addr;
  67
  68                 bootstage_mark(BOOTSTAGE_ID_IDE_FORMAT);
  69
  70                 if (!image_check_hcrc(hdr)) {
  71                         puts("\n** Bad Header Checksum **\n");
  72                         bootstage_error(BOOTSTAGE_ID_IDE_CHECKSUM);
  73                         return 1;
  74                 }
  75                 bootstage_mark(BOOTSTAGE_ID_IDE_CHECKSUM);
  76
  77                 image_print_contents(hdr);
  78
  79                 cnt = image_get_image_size(hdr);
  80                 break;
  81 #if defined(CONFIG_FIT)
  82         case IMAGE_FORMAT_FIT:
  83                 fit_hdr = (const void *) addr;
  84                 puts("Fit image detected...\n");
  85
  86                 cnt = fit_get_size(fit_hdr);
  87                 break;
  88 #endif
  89         default:
  90                 bootstage_error(BOOTSTAGE_ID_IDE_FORMAT);
  91                 puts("** Unknown image type\n");
  92                 return 1;
  93         }
  94
  95         cnt += info.blksz - 1;
  96         cnt /= info.blksz;
  97         cnt -= 1;
  98
  99         if (dev_desc->block_read(dev, info.start + 1, cnt,
 100                                          (ulong *)(addr + info.blksz)) != cnt) {
 101                 printf("** Read error on %d:%d\n", dev, part);
 102                 bootstage_error(BOOTSTAGE_ID_IDE_READ);
 103                 return 1;
 104         }
 105         bootstage_mark(BOOTSTAGE_ID_IDE_READ);
 106
 107 #if defined(CONFIG_FIT)
 108         /* This cannot be done earlier,
 109          * we need complete FIT image in RAM first */
 110         if (genimg_get_format((void *) addr) == IMAGE_FORMAT_FIT) {
 111                 if (!fit_check_format(fit_hdr)) {
 112                         bootstage_error(BOOTSTAGE_ID_IDE_FIT_READ);
 113                         puts("** Bad FIT image format\n");
 114                         return 1;
 115                 }
 116                 bootstage_mark(BOOTSTAGE_ID_IDE_FIT_READ_OK);
 117                 fit_print_contents(fit_hdr);
 118         }
 119 #endif
 120
 121         flush_cache(addr, (cnt+1)*info.blksz);
 122
 123         /* Loading ok, update default load address */
 124         load_addr = addr;
 125
 126         return bootm_maybe_autostart(cmdtp, argv[0]);
 127 }
 128 #endif