1 // SPDX-License-Identifier: GPL-2.0+
4 * Texas Instruments, <www.ti.com>
6 * Aneesh V <aneesh@ti.com>
11 #include <linux/compiler.h>
13 #include <asm/u-boot.h>
18 static int mmc_load_legacy(struct spl_image_info
*spl_image
, struct mmc
*mmc
,
19 ulong sector
, struct image_header
*header
)
21 u32 image_size_sectors
;
25 ret
= spl_parse_image_header(spl_image
, header
);
29 /* convert size to sectors - round up */
30 image_size_sectors
= (spl_image
->size
+ mmc
->read_bl_len
- 1) /
33 /* Read the header too to avoid extra memcpy */
34 count
= blk_dread(mmc_get_blk_desc(mmc
), sector
, image_size_sectors
,
35 (void *)(ulong
)spl_image
->load_addr
);
36 debug("read %x sectors to %lx\n", image_size_sectors
,
37 spl_image
->load_addr
);
38 if (count
!= image_size_sectors
)
44 static ulong
h_spl_load_read(struct spl_load_info
*load
, ulong sector
,
45 ulong count
, void *buf
)
47 struct mmc
*mmc
= load
->dev
;
49 return blk_dread(mmc_get_blk_desc(mmc
), sector
, count
, buf
);
53 int mmc_load_image_raw_sector(struct spl_image_info
*spl_image
,
54 struct mmc
*mmc
, unsigned long sector
)
57 struct image_header
*header
;
58 struct blk_desc
*bd
= mmc_get_blk_desc(mmc
);
61 header
= spl_get_load_buffer(-sizeof(*header
), bd
->blksz
);
63 /* read image header to find the image size & load address */
64 count
= blk_dread(bd
, sector
, 1, header
);
65 debug("hdr read sector %lx, count=%lu\n", sector
, count
);
71 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT
) &&
72 image_get_magic(header
) == FDT_MAGIC
) {
73 struct spl_load_info load
;
79 load
.bl_len
= mmc
->read_bl_len
;
80 load
.read
= h_spl_load_read
;
81 ret
= spl_load_simple_fit(spl_image
, &load
, sector
, header
);
83 ret
= mmc_load_legacy(spl_image
, mmc
, sector
, header
);
88 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
89 puts("mmc_load_image_raw_sector: mmc block read error\n");
97 static int spl_mmc_get_device_index(u32 boot_device
)
99 switch (boot_device
) {
100 case BOOT_DEVICE_MMC1
:
102 case BOOT_DEVICE_MMC2
:
103 case BOOT_DEVICE_MMC2_2
:
107 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
108 printf("spl: unsupported mmc boot device.\n");
114 static int spl_mmc_find_device(struct mmc
**mmcp
, u32 boot_device
)
116 #if CONFIG_IS_ENABLED(DM_MMC)
121 mmc_dev
= spl_mmc_get_device_index(boot_device
);
125 err
= mmc_initialize(NULL
);
127 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
128 printf("spl: could not initialize mmc. error: %d\n", err
);
133 #if CONFIG_IS_ENABLED(DM_MMC)
134 err
= uclass_get_device(UCLASS_MMC
, mmc_dev
, &dev
);
136 *mmcp
= mmc_get_mmc_dev(dev
);
138 *mmcp
= find_mmc_device(mmc_dev
);
139 err
= *mmcp
? 0 : -ENODEV
;
142 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
143 printf("spl: could not find mmc device %d. error: %d\n",
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
, int partition
)
156 disk_partition_t info
;
159 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE
161 /* Only support MBR so DOS_ENTRY_NUMBERS */
162 for (type_part
= 1; type_part
<= DOS_ENTRY_NUMBERS
; type_part
++) {
163 err
= part_get_info(mmc_get_blk_desc(mmc
), type_part
, &info
);
167 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE
) {
168 partition
= type_part
;
174 err
= part_get_info(mmc_get_blk_desc(mmc
), partition
, &info
);
176 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
177 puts("spl: partition error\n");
182 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
183 return mmc_load_image_raw_sector(spl_image
, mmc
,
184 info
.start
+ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
);
186 return mmc_load_image_raw_sector(spl_image
, mmc
, info
.start
);
191 #ifdef CONFIG_SPL_OS_BOOT
192 static int mmc_load_image_raw_os(struct spl_image_info
*spl_image
,
197 #if defined(CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR)
200 count
= blk_dread(mmc_get_blk_desc(mmc
),
201 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR
,
202 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS
,
203 (void *) CONFIG_SYS_SPL_ARGS_ADDR
);
204 if (count
!= CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS
) {
205 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
206 puts("mmc_load_image_raw_os: mmc block read error\n");
210 #endif /* CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR */
212 ret
= mmc_load_image_raw_sector(spl_image
, mmc
,
213 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR
);
217 if (spl_image
->os
!= IH_OS_LINUX
) {
218 puts("Expected Linux image is not found. Trying to start U-boot\n");
225 int spl_start_uboot(void)
229 static int mmc_load_image_raw_os(struct spl_image_info
*spl_image
,
236 #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
237 static int spl_mmc_do_fs_boot(struct spl_image_info
*spl_image
, struct mmc
*mmc
)
241 #ifdef CONFIG_SPL_FS_FAT
242 if (!spl_start_uboot()) {
243 err
= spl_load_image_fat_os(spl_image
, mmc_get_blk_desc(mmc
),
244 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
);
248 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
249 err
= spl_load_image_fat(spl_image
, mmc_get_blk_desc(mmc
),
250 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
,
251 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
);
256 #ifdef CONFIG_SPL_FS_EXT4
257 if (!spl_start_uboot()) {
258 err
= spl_load_image_ext_os(spl_image
, mmc_get_blk_desc(mmc
),
259 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
);
263 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
264 err
= spl_load_image_ext(spl_image
, mmc_get_blk_desc(mmc
),
265 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
,
266 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
);
272 #if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
279 static int spl_mmc_do_fs_boot(struct spl_image_info
*spl_image
, struct mmc
*mmc
)
285 u32 __weak
spl_boot_mode(const u32 boot_device
)
287 #if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
288 return MMCSD_MODE_FS
;
289 #elif defined(CONFIG_SUPPORT_EMMC_BOOT)
290 return MMCSD_MODE_EMMCBOOT
;
292 return MMCSD_MODE_RAW
;
296 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
298 int spl_boot_partition(const u32 boot_device
)
300 return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
;
304 int spl_mmc_load_image(struct spl_image_info
*spl_image
,
305 struct spl_boot_device
*bootdev
)
307 struct mmc
*mmc
= NULL
;
310 __maybe_unused
int part
;
312 err
= spl_mmc_find_device(&mmc
, bootdev
->boot_device
);
318 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
319 printf("spl: mmc init failed with error: %d\n", err
);
324 boot_mode
= spl_boot_mode(bootdev
->boot_device
);
327 case MMCSD_MODE_EMMCBOOT
:
329 * We need to check what the partition is configured to.
330 * 1 and 2 match up to boot0 / boot1 and 7 is user data
331 * which is the first physical partition (0).
333 part
= (mmc
->part_config
>> 3) & PART_ACCESS_MASK
;
338 if (CONFIG_IS_ENABLED(MMC_TINY
))
339 err
= mmc_switch_part(mmc
, part
);
341 err
= blk_dselect_hwpart(mmc_get_blk_desc(mmc
), part
);
344 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
345 puts("spl: mmc partition switch failed\n");
351 debug("spl: mmc boot mode: raw\n");
353 if (!spl_start_uboot()) {
354 err
= mmc_load_image_raw_os(spl_image
, mmc
);
358 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
359 err
= spl_boot_partition(bootdev
->boot_device
);
363 err
= mmc_load_image_raw_partition(spl_image
, mmc
, err
);
367 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
368 err
= mmc_load_image_raw_sector(spl_image
, mmc
,
369 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
);
373 /* If RAW mode fails, try FS mode. */
375 debug("spl: mmc boot mode: fs\n");
377 err
= spl_mmc_do_fs_boot(spl_image
, mmc
);
382 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
384 puts("spl: mmc: wrong boot mode\n");
391 SPL_LOAD_IMAGE_METHOD("MMC1", 0, BOOT_DEVICE_MMC1
, spl_mmc_load_image
);
392 SPL_LOAD_IMAGE_METHOD("MMC2", 0, BOOT_DEVICE_MMC2
, spl_mmc_load_image
);
393 SPL_LOAD_IMAGE_METHOD("MMC2_2", 0, BOOT_DEVICE_MMC2_2
, spl_mmc_load_image
);