1 // SPDX-License-Identifier: GPL-2.0+
4 * Texas Instruments, <www.ti.com>
6 * Aneesh V <aneesh@ti.com>
13 #include <linux/compiler.h>
15 #include <asm/u-boot.h>
20 static int mmc_load_legacy(struct spl_image_info *spl_image, struct mmc *mmc,
21 ulong sector, struct image_header *header)
23 u32 image_size_sectors;
27 ret = spl_parse_image_header(spl_image, header);
31 /* convert size to sectors - round up */
32 image_size_sectors = (spl_image->size + mmc->read_bl_len - 1) /
35 /* Read the header too to avoid extra memcpy */
36 count = blk_dread(mmc_get_blk_desc(mmc), sector, image_size_sectors,
37 (void *)(ulong)spl_image->load_addr);
38 debug("read %x sectors to %lx\n", image_size_sectors,
39 spl_image->load_addr);
40 if (count != image_size_sectors)
46 static ulong h_spl_load_read(struct spl_load_info *load, ulong sector,
47 ulong count, void *buf)
49 struct mmc *mmc = load->dev;
51 return blk_dread(mmc_get_blk_desc(mmc), sector, count, buf);
54 static __maybe_unused unsigned long spl_mmc_raw_uboot_offset(int part)
56 #if IS_ENABLED(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR)
58 return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET;
65 int mmc_load_image_raw_sector(struct spl_image_info *spl_image,
66 struct mmc *mmc, unsigned long sector)
69 struct image_header *header;
70 struct blk_desc *bd = mmc_get_blk_desc(mmc);
73 header = spl_get_load_buffer(-sizeof(*header), bd->blksz);
75 /* read image header to find the image size & load address */
76 count = blk_dread(bd, sector, 1, header);
77 debug("hdr read sector %lx, count=%lu\n", sector, count);
83 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
84 image_get_magic(header) == FDT_MAGIC) {
85 struct spl_load_info load;
91 load.bl_len = mmc->read_bl_len;
92 load.read = h_spl_load_read;
93 ret = spl_load_simple_fit(spl_image, &load, sector, header);
94 } else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
95 struct spl_load_info load;
100 load.bl_len = mmc->read_bl_len;
101 load.read = h_spl_load_read;
103 ret = spl_load_imx_container(spl_image, &load, sector);
105 ret = mmc_load_legacy(spl_image, mmc, sector, header);
110 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
111 puts("mmc_load_image_raw_sector: mmc block read error\n");
119 static int spl_mmc_get_device_index(u32 boot_device)
121 switch (boot_device) {
122 case BOOT_DEVICE_MMC1:
124 case BOOT_DEVICE_MMC2:
125 case BOOT_DEVICE_MMC2_2:
129 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
130 printf("spl: unsupported mmc boot device.\n");
136 static int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device)
140 mmc_dev = spl_mmc_get_device_index(boot_device);
144 #if CONFIG_IS_ENABLED(DM_MMC)
145 err = mmc_init_device(mmc_dev);
147 err = mmc_initialize(NULL);
150 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
151 printf("spl: could not initialize mmc. error: %d\n", err);
155 *mmcp = find_mmc_device(mmc_dev);
156 err = *mmcp ? 0 : -ENODEV;
158 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
159 printf("spl: could not find mmc device %d. error: %d\n",
168 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
169 static int mmc_load_image_raw_partition(struct spl_image_info *spl_image,
170 struct mmc *mmc, int partition,
171 unsigned long sector)
173 struct disk_partition info;
176 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE
178 /* Only support MBR so DOS_ENTRY_NUMBERS */
179 for (type_part = 1; type_part <= DOS_ENTRY_NUMBERS; type_part++) {
180 err = part_get_info(mmc_get_blk_desc(mmc), type_part, &info);
184 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE) {
185 partition = type_part;
191 err = part_get_info(mmc_get_blk_desc(mmc), partition, &info);
193 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
194 puts("spl: partition error\n");
199 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
200 return mmc_load_image_raw_sector(spl_image, mmc, info.start + sector);
202 return mmc_load_image_raw_sector(spl_image, mmc, info.start);
207 #ifdef CONFIG_SPL_OS_BOOT
208 static int mmc_load_image_raw_os(struct spl_image_info *spl_image,
213 #if defined(CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR)
216 count = blk_dread(mmc_get_blk_desc(mmc),
217 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
218 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
219 (void *) CONFIG_SYS_SPL_ARGS_ADDR);
220 if (count != CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS) {
221 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
222 puts("mmc_load_image_raw_os: mmc block read error\n");
226 #endif /* CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR */
228 ret = mmc_load_image_raw_sector(spl_image, mmc,
229 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
233 if (spl_image->os != IH_OS_LINUX) {
234 puts("Expected Linux image is not found. Trying to start U-boot\n");
241 int spl_start_uboot(void)
245 static int mmc_load_image_raw_os(struct spl_image_info *spl_image,
252 #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
253 static int spl_mmc_do_fs_boot(struct spl_image_info *spl_image, struct mmc *mmc,
254 const char *filename)
258 #ifdef CONFIG_SPL_FS_FAT
259 if (!spl_start_uboot()) {
260 err = spl_load_image_fat_os(spl_image, mmc_get_blk_desc(mmc),
261 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
265 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
266 err = spl_load_image_fat(spl_image, mmc_get_blk_desc(mmc),
267 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
273 #ifdef CONFIG_SPL_FS_EXT4
274 if (!spl_start_uboot()) {
275 err = spl_load_image_ext_os(spl_image, mmc_get_blk_desc(mmc),
276 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
280 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
281 err = spl_load_image_ext(spl_image, mmc_get_blk_desc(mmc),
282 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
289 #if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
296 static int spl_mmc_do_fs_boot(struct spl_image_info *spl_image, struct mmc *mmc,
297 const char *filename)
303 u32 __weak spl_mmc_boot_mode(const u32 boot_device)
305 #if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
306 return MMCSD_MODE_FS;
307 #elif defined(CONFIG_SUPPORT_EMMC_BOOT)
308 return MMCSD_MODE_EMMCBOOT;
310 return MMCSD_MODE_RAW;
314 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
315 int __weak spl_mmc_boot_partition(const u32 boot_device)
317 return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION;
321 unsigned long __weak spl_mmc_get_uboot_raw_sector(struct mmc *mmc,
322 unsigned long raw_sect)
327 int default_spl_mmc_emmc_boot_partition(struct mmc *mmc)
330 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION
331 part = CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION;
334 * We need to check what the partition is configured to.
335 * 1 and 2 match up to boot0 / boot1 and 7 is user data
336 * which is the first physical partition (0).
338 part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
345 int __weak spl_mmc_emmc_boot_partition(struct mmc *mmc)
347 return default_spl_mmc_emmc_boot_partition(mmc);
350 int spl_mmc_load(struct spl_image_info *spl_image,
351 struct spl_boot_device *bootdev,
352 const char *filename,
354 unsigned long raw_sect)
356 static struct mmc *mmc;
359 __maybe_unused int part = 0;
361 /* Perform peripheral init only once */
363 err = spl_mmc_find_device(&mmc, bootdev->boot_device);
370 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
371 printf("spl: mmc init failed with error: %d\n", err);
377 boot_mode = spl_mmc_boot_mode(bootdev->boot_device);
380 case MMCSD_MODE_EMMCBOOT:
381 part = spl_mmc_emmc_boot_partition(mmc);
383 if (CONFIG_IS_ENABLED(MMC_TINY))
384 err = mmc_switch_part(mmc, part);
386 err = blk_dselect_hwpart(mmc_get_blk_desc(mmc), part);
389 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
390 puts("spl: mmc partition switch failed\n");
396 debug("spl: mmc boot mode: raw\n");
398 if (!spl_start_uboot()) {
399 err = mmc_load_image_raw_os(spl_image, mmc);
404 raw_sect = spl_mmc_get_uboot_raw_sector(mmc, raw_sect);
406 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
407 err = mmc_load_image_raw_partition(spl_image, mmc, raw_part,
412 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
413 err = mmc_load_image_raw_sector(spl_image, mmc,
414 raw_sect + spl_mmc_raw_uboot_offset(part));
418 /* If RAW mode fails, try FS mode. */
420 debug("spl: mmc boot mode: fs\n");
422 err = spl_mmc_do_fs_boot(spl_image, mmc, filename);
427 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
429 puts("spl: mmc: wrong boot mode\n");
436 int spl_mmc_load_image(struct spl_image_info *spl_image,
437 struct spl_boot_device *bootdev)
439 return spl_mmc_load(spl_image, bootdev,
440 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
441 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME,
445 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
446 spl_mmc_boot_partition(bootdev->boot_device),
450 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
451 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
457 SPL_LOAD_IMAGE_METHOD("MMC1", 0, BOOT_DEVICE_MMC1, spl_mmc_load_image);
458 SPL_LOAD_IMAGE_METHOD("MMC2", 0, BOOT_DEVICE_MMC2, spl_mmc_load_image);
459 SPL_LOAD_IMAGE_METHOD("MMC2_2", 0, BOOT_DEVICE_MMC2_2, spl_mmc_load_image);