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 <dm.h> 11 #include <spl.h> 12 #include <linux/compiler.h> 13 #include <asm/u-boot.h> 14 #include <mmc.h> 15 #include <image.h> 16 17 DECLARE_GLOBAL_DATA_PTR; 18 19 static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector) 20 { 21 unsigned long count; 22 u32 image_size_sectors; 23 struct image_header *header; 24 25 header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - 26 sizeof(struct image_header)); 27 28 /* read image header to find the image size & load address */ 29 count = mmc->block_dev.block_read(0, sector, 1, header); 30 debug("read sector %lx, count=%lu\n", sector, count); 31 if (count == 0) 32 goto end; 33 34 if (image_get_magic(header) != IH_MAGIC) { 35 puts("bad magic\n"); 36 return -1; 37 } 38 39 spl_parse_image_header(header); 40 41 /* convert size to sectors - round up */ 42 image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) / 43 mmc->read_bl_len; 44 45 /* Read the header too to avoid extra memcpy */ 46 count = mmc->block_dev.block_read(0, sector, image_size_sectors, 47 (void *)spl_image.load_addr); 48 debug("read %x sectors to %x\n", image_size_sectors, 49 spl_image.load_addr); 50 51 end: 52 if (count == 0) { 53 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 54 puts("spl: mmc block read error\n"); 55 #endif 56 return -1; 57 } 58 59 return 0; 60 } 61 62 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION 63 static int mmc_load_image_raw_partition(struct mmc *mmc, int partition) 64 { 65 disk_partition_t info; 66 int err; 67 68 err = get_partition_info(&mmc->block_dev, partition, &info); 69 if (err) { 70 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 71 puts("spl: partition error\n"); 72 #endif 73 return -1; 74 } 75 76 return mmc_load_image_raw_sector(mmc, info.start); 77 } 78 #endif 79 80 #ifdef CONFIG_SPL_OS_BOOT 81 static int mmc_load_image_raw_os(struct mmc *mmc) 82 { 83 unsigned long count; 84 85 count = mmc->block_dev.block_read(0, 86 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR, 87 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS, 88 (void *) CONFIG_SYS_SPL_ARGS_ADDR); 89 if (count == 0) { 90 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 91 puts("spl: mmc block read error\n"); 92 #endif 93 return -1; 94 } 95 96 return mmc_load_image_raw_sector(mmc, 97 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR); 98 } 99 #endif 100 101 void spl_mmc_load_image(void) 102 { 103 struct mmc *mmc; 104 u32 boot_mode; 105 int err = 0; 106 __maybe_unused int part; 107 108 #ifdef CONFIG_DM_MMC 109 struct udevice *dev; 110 111 mmc_initialize(NULL); 112 err = uclass_get_device(UCLASS_MMC, 0, &dev); 113 mmc = NULL; 114 if (!err) 115 mmc = mmc_get_mmc_dev(dev); 116 #else 117 mmc_initialize(gd->bd); 118 119 /* We register only one device. So, the dev id is always 0 */ 120 mmc = find_mmc_device(0); 121 if (!mmc) { 122 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 123 puts("spl: mmc device not found\n"); 124 #endif 125 hang(); 126 } 127 #endif 128 129 if (!err) 130 err = mmc_init(mmc); 131 132 if (err) { 133 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 134 printf("spl: mmc init failed with error: %d\n", err); 135 #endif 136 hang(); 137 } 138 139 boot_mode = spl_boot_mode(); 140 switch (boot_mode) { 141 case MMCSD_MODE_RAW: 142 debug("spl: mmc boot mode: raw\n"); 143 144 #ifdef CONFIG_SPL_OS_BOOT 145 if (!spl_start_uboot()) { 146 err = mmc_load_image_raw_os(mmc); 147 if (!err) 148 return; 149 } 150 #endif 151 #if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION) 152 err = mmc_load_image_raw_partition(mmc, 153 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION); 154 if (!err) 155 return; 156 #elif defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR) 157 err = mmc_load_image_raw_sector(mmc, 158 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR); 159 if (!err) 160 return; 161 #endif 162 case MMCSD_MODE_FS: 163 debug("spl: mmc boot mode: fs\n"); 164 165 #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 166 #ifdef CONFIG_SPL_FAT_SUPPORT 167 #ifdef CONFIG_SPL_OS_BOOT 168 if (!spl_start_uboot()) { 169 err = spl_load_image_fat_os(&mmc->block_dev, 170 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION); 171 if (!err) 172 return; 173 } 174 #endif 175 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME 176 err = spl_load_image_fat(&mmc->block_dev, 177 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION, 178 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME); 179 if (!err) 180 return; 181 #endif 182 #endif 183 #ifdef CONFIG_SPL_EXT_SUPPORT 184 #ifdef CONFIG_SPL_OS_BOOT 185 if (!spl_start_uboot()) { 186 err = spl_load_image_ext_os(&mmc->block_dev, 187 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION); 188 if (!err) 189 return; 190 } 191 #endif 192 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME 193 err = spl_load_image_ext(&mmc->block_dev, 194 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION, 195 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME); 196 if (!err) 197 return; 198 #endif 199 #endif 200 #endif 201 #ifdef CONFIG_SUPPORT_EMMC_BOOT 202 case MMCSD_MODE_EMMCBOOT: 203 /* 204 * We need to check what the partition is configured to. 205 * 1 and 2 match up to boot0 / boot1 and 7 is user data 206 * which is the first physical partition (0). 207 */ 208 part = (mmc->part_config >> 3) & PART_ACCESS_MASK; 209 210 if (part == 7) 211 part = 0; 212 213 if (mmc_switch_part(0, part)) { 214 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 215 puts("spl: mmc partition switch failed\n"); 216 #endif 217 hang(); 218 } 219 220 #ifdef CONFIG_SPL_OS_BOOT 221 if (!spl_start_uboot()) { 222 err = mmc_load_image_raw_os(mmc); 223 if (!err) 224 return; 225 } 226 #endif 227 #if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION) 228 err = mmc_load_image_raw_partition(mmc, 229 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION); 230 if (!err) 231 return; 232 #elif defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR) 233 err = mmc_load_image_raw_sector(mmc, 234 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR); 235 if (!err) 236 return; 237 #endif 238 #endif 239 case MMCSD_MODE_UNDEFINED: 240 default: 241 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 242 if (err) 243 puts("spl: mmc: no boot mode left to try\n"); 244 else 245 puts("spl: mmc: wrong boot mode\n"); 246 #endif 247 hang(); 248 } 249 } 250