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 <boot_rkimg.h> 11 #include <dm.h> 12 #include <part.h> 13 #include <spl.h> 14 #include <spl_rkfw.h> 15 #include <linux/compiler.h> 16 #include <errno.h> 17 #include <asm/u-boot.h> 18 #include <errno.h> 19 #include <mmc.h> 20 #include <image.h> 21 22 DECLARE_GLOBAL_DATA_PTR; 23 24 static int mmc_load_legacy(struct spl_image_info *spl_image, struct mmc *mmc, 25 ulong sector, struct image_header *header) 26 { 27 u32 image_size_sectors; 28 unsigned long count; 29 int ret; 30 31 ret = spl_parse_image_header(spl_image, header); 32 if (ret) 33 return ret; 34 35 /* convert size to sectors - round up */ 36 image_size_sectors = (spl_image->size + mmc->read_bl_len - 1) / 37 mmc->read_bl_len; 38 39 /* Read the header too to avoid extra memcpy */ 40 count = blk_dread(mmc_get_blk_desc(mmc), sector, image_size_sectors, 41 (void *)(ulong)spl_image->load_addr); 42 debug("read %x sectors to %lx\n", image_size_sectors, 43 spl_image->load_addr); 44 if (count != image_size_sectors) 45 return -EIO; 46 47 return 0; 48 } 49 50 static ulong h_spl_load_read(struct spl_load_info *load, ulong sector, 51 ulong count, void *buf) 52 { 53 return blk_dread(load->dev, sector, count, buf); 54 } 55 56 static __maybe_unused 57 int mmc_load_image_raw_sector(struct spl_image_info *spl_image, 58 struct mmc *mmc, unsigned long sector) 59 { 60 unsigned long count; 61 struct image_header *header; 62 int ret = 0; 63 64 header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - 65 sizeof(struct image_header)); 66 67 /* read image header to find the image size & load address */ 68 count = blk_dread(mmc_get_blk_desc(mmc), sector, 1, header); 69 debug("hdr read sector %lx, count=%lu\n", sector, count); 70 if (count == 0) { 71 ret = -EIO; 72 goto end; 73 } 74 75 #ifdef CONFIG_SPL_FIT_IMAGE_MULTIPLE 76 if ((IS_ENABLED(CONFIG_SPL_LOAD_FIT) && 77 image_get_magic(header) == FDT_MAGIC) || 78 CONFIG_SPL_FIT_IMAGE_MULTIPLE > 1) { 79 #else 80 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) && 81 image_get_magic(header) == FDT_MAGIC) { 82 #endif 83 struct spl_load_info load; 84 85 debug("Found FIT\n"); 86 load.dev = mmc_get_blk_desc(mmc); 87 load.priv = NULL; 88 load.filename = NULL; 89 load.bl_len = mmc->read_bl_len; 90 load.read = h_spl_load_read; 91 ret = spl_load_simple_fit(spl_image, &load, sector, header); 92 } else { 93 ret = mmc_load_legacy(spl_image, mmc, sector, header); 94 } 95 96 end: 97 if (ret) { 98 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 99 debug("mmc_load_image_raw_sector error: ret is %d\n", ret); 100 #endif 101 return -1; 102 } 103 104 return 0; 105 } 106 107 static int spl_mmc_get_device_index(u32 boot_device) 108 { 109 switch (boot_device) { 110 case BOOT_DEVICE_MMC1: 111 return 0; 112 case BOOT_DEVICE_MMC2: 113 case BOOT_DEVICE_MMC2_2: 114 return 1; 115 } 116 117 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 118 printf("spl: unsupported mmc boot device.\n"); 119 #endif 120 121 return -ENODEV; 122 } 123 124 int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device) 125 { 126 int err, mmc_dev; 127 128 mmc_dev = spl_mmc_get_device_index(boot_device); 129 if (mmc_dev < 0) 130 return mmc_dev; 131 132 err = mmc_initialize(NULL); 133 if (err) { 134 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 135 printf("spl: could not initialize mmc. error: %d\n", err); 136 #endif 137 return err; 138 } 139 140 *mmcp = find_mmc_device(mmc_dev); 141 err = *mmcp ? 0 : -ENODEV; 142 if (err) { 143 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 144 printf("spl: could not find mmc device. error: %d\n", err); 145 #endif 146 return err; 147 } 148 149 return 0; 150 } 151 152 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION 153 static int mmc_load_image_raw_partition(struct spl_image_info *spl_image, 154 struct mmc *mmc, 155 const char *partition_name, 156 int partition) 157 { 158 disk_partition_t info; 159 int err; 160 161 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE 162 int type_part; 163 /* Only support MBR so DOS_ENTRY_NUMBERS */ 164 for (type_part = 1; type_part <= DOS_ENTRY_NUMBERS; type_part++) { 165 err = part_get_info(mmc_get_blk_desc(mmc), type_part, &info); 166 if (err) 167 continue; 168 if (info.sys_ind == 169 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE) { 170 partition = type_part; 171 break; 172 } 173 } 174 #endif 175 if (strcmp(partition_name, "")) 176 err = part_get_info_by_name(mmc_get_blk_desc(mmc), 177 partition_name, &info); 178 else 179 err = part_get_info(mmc_get_blk_desc(mmc), partition, &info); 180 if (err < 0) { 181 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 182 puts("spl: partition error\n"); 183 #endif 184 return -1; 185 } 186 187 return mmc_load_image_raw_sector(spl_image, mmc, info.start); 188 } 189 #endif 190 191 #ifdef CONFIG_SPL_OS_BOOT 192 static int mmc_load_image_raw_os(struct spl_image_info *spl_image, 193 struct mmc *mmc) 194 { 195 unsigned long count; 196 int ret; 197 198 count = blk_dread(mmc_get_blk_desc(mmc), 199 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR, 200 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS, 201 (void *) CONFIG_SYS_SPL_ARGS_ADDR); 202 if (count != CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS) { 203 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 204 puts("mmc_load_image_raw_os: mmc block read error\n"); 205 #endif 206 return -1; 207 } 208 209 ret = mmc_load_image_raw_sector(spl_image, mmc, 210 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR); 211 if (ret) 212 return ret; 213 214 if (spl_image->os != IH_OS_LINUX) { 215 puts("Expected Linux image is not found. Trying to start U-boot\n"); 216 return -ENOENT; 217 } 218 219 return 0; 220 } 221 #else 222 int spl_start_uboot(void) 223 { 224 return 1; 225 } 226 static int mmc_load_image_raw_os(struct spl_image_info *spl_image, 227 struct mmc *mmc) 228 { 229 return -ENOSYS; 230 } 231 #endif 232 233 #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 234 static int spl_mmc_do_fs_boot(struct spl_image_info *spl_image, struct mmc *mmc) 235 { 236 int err = -ENOSYS; 237 238 #ifdef CONFIG_SPL_FAT_SUPPORT 239 if (!spl_start_uboot()) { 240 err = spl_load_image_fat_os(spl_image, mmc_get_blk_desc(mmc), 241 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION); 242 if (!err) 243 return err; 244 } 245 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME 246 err = spl_load_image_fat(spl_image, mmc_get_blk_desc(mmc), 247 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION, 248 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME); 249 if (!err) 250 return err; 251 #endif 252 #endif 253 #ifdef CONFIG_SPL_EXT_SUPPORT 254 if (!spl_start_uboot()) { 255 err = spl_load_image_ext_os(spl_image, mmc_get_blk_desc(mmc), 256 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION); 257 if (!err) 258 return err; 259 } 260 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME 261 err = spl_load_image_ext(spl_image, mmc_get_blk_desc(mmc), 262 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION, 263 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME); 264 if (!err) 265 return err; 266 #endif 267 #endif 268 269 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT) 270 err = -ENOENT; 271 #endif 272 273 return err; 274 } 275 #else 276 static int spl_mmc_do_fs_boot(struct spl_image_info *spl_image, struct mmc *mmc) 277 { 278 return -ENOSYS; 279 } 280 #endif 281 282 int spl_mmc_load_image(struct spl_image_info *spl_image, 283 struct spl_boot_device *bootdev) 284 { 285 struct mmc *mmc = NULL; 286 u32 boot_mode; 287 int err = 0; 288 __maybe_unused int part; 289 290 err = spl_mmc_find_device(&mmc, bootdev->boot_device); 291 if (err) 292 return err; 293 294 err = mmc_init(mmc); 295 if (err) { 296 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 297 printf("spl: mmc init failed with error: %d\n", err); 298 #endif 299 return err; 300 } 301 302 #ifdef CONFIG_SPL_LOAD_RKFW 303 struct spl_load_info load; 304 305 load.dev = mmc_get_blk_desc(mmc); 306 load.priv = NULL; 307 load.filename = NULL; 308 load.bl_len = mmc->read_bl_len; 309 load.read = h_spl_load_read; 310 311 err = spl_load_rkfw_image(spl_image, &load); 312 if (!err || err != -EAGAIN) 313 return err; 314 #endif 315 boot_mode = spl_boot_mode(bootdev->boot_device); 316 err = -EINVAL; 317 switch (boot_mode) { 318 case MMCSD_MODE_EMMCBOOT: 319 /* 320 * We need to check what the partition is configured to. 321 * 1 and 2 match up to boot0 / boot1 and 7 is user data 322 * which is the first physical partition (0). 323 */ 324 part = (mmc->part_config >> 3) & PART_ACCESS_MASK; 325 326 if (part == 7) 327 part = 0; 328 329 if (CONFIG_IS_ENABLED(MMC_TINY)) 330 err = mmc_switch_part(mmc, part); 331 else 332 err = blk_dselect_hwpart(mmc_get_blk_desc(mmc), part); 333 334 if (err) { 335 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 336 puts("spl: mmc partition switch failed\n"); 337 #endif 338 return err; 339 } 340 /* Fall through */ 341 case MMCSD_MODE_RAW: 342 debug("spl: mmc boot mode: raw\n"); 343 344 if (!spl_start_uboot()) { 345 err = mmc_load_image_raw_os(spl_image, mmc); 346 if (!err) 347 return err; 348 } 349 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION 350 err = mmc_load_image_raw_partition(spl_image, mmc, 351 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_NAME, 352 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION); 353 if (!err) 354 return err; 355 #endif 356 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR 357 err = mmc_load_image_raw_sector(spl_image, mmc, 358 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR); 359 if (!err) 360 return err; 361 #endif 362 /* If RAW mode fails, try FS mode. */ 363 case MMCSD_MODE_FS: 364 debug("spl: mmc boot mode: fs\n"); 365 366 err = spl_mmc_do_fs_boot(spl_image, mmc); 367 if (!err) 368 return err; 369 370 break; 371 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 372 default: 373 puts("spl: mmc: wrong boot mode\n"); 374 #endif 375 } 376 377 return err; 378 } 379 380 SPL_LOAD_IMAGE_METHOD("MMC1", 0, BOOT_DEVICE_MMC1, spl_mmc_load_image); 381 SPL_LOAD_IMAGE_METHOD("MMC2", 0, BOOT_DEVICE_MMC2, spl_mmc_load_image); 382 SPL_LOAD_IMAGE_METHOD("MMC2_2", 0, BOOT_DEVICE_MMC2_2, spl_mmc_load_image); 383