git.sur5r.net Git - u-boot/blob - common/spl/spl_mmc.c

   1 /*
   2  * (C) Copyright 2010
   3  * Texas Instruments, <www.ti.com>
   4  *
   5  * Aneesh V <aneesh@ti.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9 #include <common.h>
  10 #include <spl.h>
  11 #include <linux/compiler.h>
  12 #include <asm/u-boot.h>
  13 #include <mmc.h>
  14 #include <image.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector)
  19 {
  20         unsigned long count;
  21         u32 image_size_sectors;
  22         struct image_header *header;
  23
  24         header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
  25                                          sizeof(struct image_header));
  26
  27         /* read image header to find the image size & load address */
  28         count = mmc->block_dev.block_read(0, sector, 1, header);
  29         if (count == 0)
  30                 goto end;
  31
  32         if (image_get_magic(header) != IH_MAGIC)
  33                 return -1;
  34
  35         spl_parse_image_header(header);
  36
  37         /* convert size to sectors - round up */
  38         image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) /
  39                              mmc->read_bl_len;
  40
  41         /* Read the header too to avoid extra memcpy */
  42         count = mmc->block_dev.block_read(0, sector, image_size_sectors,
  43                                           (void *) spl_image.load_addr);
  44
  45 end:
  46         if (count == 0) {
  47 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
  48                 puts("spl: mmc block read error\n");
  49 #endif
  50                 return -1;
  51         }
  52
  53         return 0;
  54 }
  55
  56 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
  57 static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
  58 {
  59         disk_partition_t info;
  60         int err;
  61
  62         err = get_partition_info(&mmc->block_dev, partition, &info);
  63         if (err) {
  64 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
  65                 puts("spl: partition error\n");
  66 #endif
  67                 return -1;
  68         }
  69
  70         return mmc_load_image_raw_sector(mmc, info.start);
  71 }
  72 #endif
  73
  74 #ifdef CONFIG_SPL_OS_BOOT
  75 static int mmc_load_image_raw_os(struct mmc *mmc)
  76 {
  77         unsigned long count;
  78
  79         count = mmc->block_dev.block_read(0,
  80                 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
  81                 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
  82                 (void *) CONFIG_SYS_SPL_ARGS_ADDR);
  83         if (count == 0) {
  84 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
  85                 puts("spl: mmc block read error\n");
  86 #endif
  87                 return -1;
  88         }
  89
  90         return mmc_load_image_raw_sector(mmc,
  91                 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
  92 }
  93 #endif
  94
  95 void spl_mmc_load_image(void)
  96 {
  97         struct mmc *mmc;
  98         u32 boot_mode;
  99         int err;
 100         __maybe_unused int part;
 101
 102         mmc_initialize(gd->bd);
 103
 104         /* We register only one device. So, the dev id is always 0 */
 105         mmc = find_mmc_device(0);
 106         if (!mmc) {
 107 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 108                 puts("spl: mmc device not found\n");
 109 #endif
 110                 hang();
 111         }
 112
 113         err = mmc_init(mmc);
 114         if (err) {
 115 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 116                 printf("spl: mmc init failed with error: %d\n", err);
 117 #endif
 118                 hang();
 119         }
 120
 121         boot_mode = spl_boot_mode();
 122         switch (boot_mode) {
 123         case MMCSD_MODE_RAW:
 124                 debug("spl: mmc boot mode: raw\n");
 125
 126 #ifdef CONFIG_SPL_OS_BOOT
 127                 if (!spl_start_uboot()) {
 128                         err = mmc_load_image_raw_os(mmc);
 129                         if (!err)
 130                                 return;
 131                 }
 132 #endif
 133 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
 134                 err = mmc_load_image_raw_partition(mmc,
 135                         CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
 136 #else
 137                 err = mmc_load_image_raw_sector(mmc,
 138                         CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
 139 #endif
 140                 if (!err)
 141                         return;
 142 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
 143         case MMCSD_MODE_FS:
 144                 debug("spl: mmc boot mode: fs\n");
 145
 146 #ifdef CONFIG_SPL_FAT_SUPPORT
 147 #ifdef CONFIG_SPL_OS_BOOT
 148                 if (!spl_start_uboot()) {
 149                         err = spl_load_image_fat_os(&mmc->block_dev,
 150                                 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
 151                         if (!err)
 152                                 return;
 153                 }
 154 #endif
 155                 err = spl_load_image_fat(&mmc->block_dev,
 156                                          CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
 157                                          CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
 158                 if (!err)
 159                         return;
 160 #endif
 161 #ifdef CONFIG_SPL_EXT_SUPPORT
 162 #ifdef CONFIG_SPL_OS_BOOT
 163                 if (!spl_start_uboot()) {
 164                         err = spl_load_image_ext_os(&mmc->block_dev,
 165                                 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
 166                         if (!err)
 167                                 return;
 168                 }
 169 #endif
 170                 err = spl_load_image_ext(&mmc->block_dev,
 171                                          CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
 172                                          CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
 173                 if (!err)
 174                         return;
 175 #endif
 176 #endif
 177 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 178         case MMCSD_MODE_EMMCBOOT:
 179                 /*
 180                  * We need to check what the partition is configured to.
 181                  * 1 and 2 match up to boot0 / boot1 and 7 is user data
 182                  * which is the first physical partition (0).
 183                  */
 184                 part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
 185
 186                 if (part == 7)
 187                         part = 0;
 188
 189                 if (mmc_switch_part(0, part)) {
 190 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 191                         puts("spl: mmc partition switch failed\n");
 192 #endif
 193                         hang();
 194                 }
 195
 196 #ifdef CONFIG_SPL_OS_BOOT
 197                 if (!spl_start_uboot()) {
 198                         err = mmc_load_image_raw_os(mmc);
 199                         if (!err)
 200                                 return;
 201                 }
 202 #endif
 203 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
 204                 err = mmc_load_image_raw_partition(mmc,
 205                         CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
 206 #else
 207                 err = mmc_load_image_raw_sector(mmc,
 208                         CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
 209 #endif
 210                 if (!err)
 211                         return;
 212 #endif
 213         case MMCSD_MODE_UNDEFINED:
 214         default:
 215 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
 216                 if (err)
 217                         puts("spl: mmc: no boot mode left to try\n");
 218                 else
 219                         puts("spl: mmc: wrong boot mode\n");
 220 #endif
 221                 hang();
 222         }
 223 }