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