3 * Texas Instruments, <www.ti.com>
5 * Aneesh V <aneesh@ti.com>
7 * SPDX-License-Identifier: GPL-2.0+
12 #include <linux/compiler.h>
14 #include <asm/u-boot.h>
19 DECLARE_GLOBAL_DATA_PTR;
21 static int mmc_load_legacy(struct mmc *mmc, ulong sector,
22 struct image_header *header)
24 u32 image_size_sectors;
28 ret = spl_parse_image_header(header);
32 /* convert size to sectors - round up */
33 image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) /
36 /* Read the header too to avoid extra memcpy */
37 count = mmc->block_dev.block_read(&mmc->block_dev, sector,
39 (void *)(ulong)spl_image.load_addr);
40 debug("read %x sectors to %x\n", image_size_sectors,
42 if (count != image_size_sectors)
48 static ulong h_spl_load_read(struct spl_load_info *load, ulong sector,
49 ulong count, void *buf)
51 struct mmc *mmc = load->dev;
53 return mmc->block_dev.block_read(&mmc->block_dev, sector, count, buf);
56 static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector)
59 struct image_header *header;
62 header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
63 sizeof(struct image_header));
65 /* read image header to find the image size & load address */
66 count = mmc->block_dev.block_read(&mmc->block_dev, sector, 1, header);
67 debug("hdr read sector %lx, count=%lu\n", sector, count);
73 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
74 image_get_magic(header) == FDT_MAGIC) {
75 struct spl_load_info load;
81 load.bl_len = mmc->read_bl_len;
82 load.read = h_spl_load_read;
83 ret = spl_load_simple_fit(&load, sector, header);
85 ret = mmc_load_legacy(mmc, sector, header);
90 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
91 puts("mmc_load_image_raw_sector: mmc block read error\n");
99 int spl_mmc_get_device_index(u32 boot_device)
101 switch (boot_device) {
102 case BOOT_DEVICE_MMC1:
104 case BOOT_DEVICE_MMC2:
105 case BOOT_DEVICE_MMC2_2:
109 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
110 printf("spl: unsupported mmc boot device.\n");
116 static int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device)
123 mmc_dev = spl_mmc_get_device_index(boot_device);
127 err = mmc_initialize(NULL);
129 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
130 printf("spl: could not initialize mmc. error: %d\n", err);
136 err = uclass_get_device(UCLASS_MMC, mmc_dev, &dev);
138 *mmcp = mmc_get_mmc_dev(dev);
140 *mmcp = find_mmc_device(mmc_dev);
141 err = *mmcp ? 0 : -ENODEV;
144 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
145 printf("spl: could not find mmc device. error: %d\n", err);
153 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
154 static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
156 disk_partition_t info;
159 err = part_get_info(&mmc->block_dev, partition, &info);
161 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
162 puts("spl: partition error\n");
167 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
168 return mmc_load_image_raw_sector(mmc, info.start +
169 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
171 return mmc_load_image_raw_sector(mmc, info.start);
175 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION -1
176 static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
182 #ifdef CONFIG_SPL_OS_BOOT
183 static int mmc_load_image_raw_os(struct mmc *mmc)
188 count = mmc->block_dev.block_read(&mmc->block_dev,
189 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
190 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
191 (void *) CONFIG_SYS_SPL_ARGS_ADDR);
193 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
194 puts("mmc_load_image_raw_os: mmc block read error\n");
199 ret = mmc_load_image_raw_sector(mmc,
200 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
204 if (spl_image.os != IH_OS_LINUX) {
205 puts("Expected Linux image is not found. Trying to start U-boot\n");
212 int spl_start_uboot(void)
216 static int mmc_load_image_raw_os(struct mmc *mmc)
222 #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
223 int spl_mmc_do_fs_boot(struct mmc *mmc)
227 #ifdef CONFIG_SPL_FAT_SUPPORT
228 if (!spl_start_uboot()) {
229 err = spl_load_image_fat_os(&mmc->block_dev,
230 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
234 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
235 err = spl_load_image_fat(&mmc->block_dev,
236 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
237 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
242 #ifdef CONFIG_SPL_EXT_SUPPORT
243 if (!spl_start_uboot()) {
244 err = spl_load_image_ext_os(&mmc->block_dev,
245 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
249 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
250 err = spl_load_image_ext(&mmc->block_dev,
251 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
252 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
258 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
265 int spl_mmc_do_fs_boot(struct mmc *mmc)
271 int spl_mmc_load_image(u32 boot_device)
273 struct mmc *mmc = NULL;
276 __maybe_unused int part;
278 err = spl_mmc_find_device(&mmc, boot_device);
284 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
285 printf("spl: mmc init failed with error: %d\n", err);
290 boot_mode = spl_boot_mode();
293 case MMCSD_MODE_EMMCBOOT:
295 * We need to check what the partition is configured to.
296 * 1 and 2 match up to boot0 / boot1 and 7 is user data
297 * which is the first physical partition (0).
299 part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
304 err = blk_dselect_hwpart(mmc_get_blk_desc(mmc), part);
306 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
307 puts("spl: mmc partition switch failed\n");
313 debug("spl: mmc boot mode: raw\n");
315 if (!spl_start_uboot()) {
316 err = mmc_load_image_raw_os(mmc);
321 err = mmc_load_image_raw_partition(mmc,
322 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
325 #if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR)
326 err = mmc_load_image_raw_sector(mmc,
327 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
331 /* If RAW mode fails, try FS mode. */
333 debug("spl: mmc boot mode: fs\n");
335 err = spl_mmc_do_fs_boot(mmc);
340 case MMCSD_MODE_UNDEFINED:
341 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
343 puts("spl: mmc: wrong boot mode\n");