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;
27 spl_parse_image_header(header);
28 /* convert size to sectors - round up */
29 image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) /
32 /* Read the header too to avoid extra memcpy */
33 count = mmc->block_dev.block_read(&mmc->block_dev, sector,
35 (void *)(ulong)spl_image.load_addr);
36 debug("read %x sectors to %x\n", image_size_sectors,
38 if (count != image_size_sectors)
44 #ifdef CONFIG_SPL_LOAD_FIT
45 static ulong h_spl_load_read(struct spl_load_info *load, ulong sector,
46 ulong count, void *buf)
48 struct mmc *mmc = load->dev;
50 return mmc->block_dev.block_read(&mmc->block_dev, sector, count, buf);
54 static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector)
57 struct image_header *header;
60 header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
61 sizeof(struct image_header));
63 /* read image header to find the image size & load address */
64 count = mmc->block_dev.block_read(&mmc->block_dev, sector, 1, header);
65 debug("hdr read sector %lx, count=%lu\n", sector, count);
71 switch (image_get_magic(header)) {
73 ret = mmc_load_legacy(mmc, sector, header);
75 #ifdef CONFIG_SPL_LOAD_FIT
77 struct spl_load_info load;
82 load.bl_len = mmc->read_bl_len;
83 load.read = h_spl_load_read;
84 ret = spl_load_simple_fit(&load, sector, header);
95 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
96 puts("spl: mmc block read error\n");
104 int spl_mmc_get_device_index(u32 boot_device)
106 switch (boot_device) {
107 case BOOT_DEVICE_MMC1:
109 case BOOT_DEVICE_MMC2:
110 case BOOT_DEVICE_MMC2_2:
114 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
115 printf("spl: unsupported mmc boot device.\n");
121 static int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device)
128 mmc_dev = spl_mmc_get_device_index(boot_device);
132 err = mmc_initialize(NULL);
134 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
135 printf("spl: could not initialize mmc. error: %d\n", err);
141 err = uclass_get_device(UCLASS_MMC, mmc_dev, &dev);
143 *mmcp = mmc_get_mmc_dev(dev);
145 *mmcp = find_mmc_device(mmc_dev);
146 err = *mmcp ? 0 : -ENODEV;
149 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
150 printf("spl: could not find mmc device. error: %d\n", err);
158 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
159 static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
161 disk_partition_t info;
164 err = part_get_info(&mmc->block_dev, partition, &info);
166 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
167 puts("spl: partition error\n");
172 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
173 return mmc_load_image_raw_sector(mmc, info.start +
174 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
176 return mmc_load_image_raw_sector(mmc, info.start);
180 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION -1
181 static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
187 #ifdef CONFIG_SPL_OS_BOOT
188 static int mmc_load_image_raw_os(struct mmc *mmc)
192 count = mmc->block_dev.block_read(&mmc->block_dev,
193 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
194 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
195 (void *) CONFIG_SYS_SPL_ARGS_ADDR);
197 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
198 puts("spl: mmc block read error\n");
203 return mmc_load_image_raw_sector(mmc,
204 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
207 int spl_start_uboot(void)
211 static int mmc_load_image_raw_os(struct mmc *mmc)
217 #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
218 int spl_mmc_do_fs_boot(struct mmc *mmc)
222 #ifdef CONFIG_SPL_FAT_SUPPORT
223 if (!spl_start_uboot()) {
224 err = spl_load_image_fat_os(&mmc->block_dev,
225 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
229 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
230 err = spl_load_image_fat(&mmc->block_dev,
231 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
232 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
237 #ifdef CONFIG_SPL_EXT_SUPPORT
238 if (!spl_start_uboot()) {
239 err = spl_load_image_ext_os(&mmc->block_dev,
240 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
244 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
245 err = spl_load_image_ext(&mmc->block_dev,
246 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
247 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
253 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
260 int spl_mmc_do_fs_boot(struct mmc *mmc)
266 int spl_mmc_load_image(u32 boot_device)
268 struct mmc *mmc = NULL;
271 __maybe_unused int part;
273 err = spl_mmc_find_device(&mmc, boot_device);
279 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
280 printf("spl: mmc init failed with error: %d\n", err);
285 boot_mode = spl_boot_mode();
288 case MMCSD_MODE_EMMCBOOT:
290 * We need to check what the partition is configured to.
291 * 1 and 2 match up to boot0 / boot1 and 7 is user data
292 * which is the first physical partition (0).
294 part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
299 err = mmc_switch_part(0, part);
301 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
302 puts("spl: mmc partition switch failed\n");
308 debug("spl: mmc boot mode: raw\n");
310 if (!spl_start_uboot()) {
311 err = mmc_load_image_raw_os(mmc);
316 err = mmc_load_image_raw_partition(mmc,
317 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
320 #if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR)
321 err = mmc_load_image_raw_sector(mmc,
322 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
326 /* If RAW mode fails, try FS mode. */
328 debug("spl: mmc boot mode: fs\n");
330 err = spl_mmc_do_fs_boot(mmc);
335 case MMCSD_MODE_UNDEFINED:
336 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
338 puts("spl: mmc: wrong boot mode\n");