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 spl_image_info
*spl_image
, struct mmc
*mmc
,
22 ulong sector
, struct image_header
*header
)
24 u32 image_size_sectors
;
28 ret
= spl_parse_image_header(spl_image
, 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
= blk_dread(mmc_get_blk_desc(mmc
), sector
, image_size_sectors
,
38 (void *)(ulong
)spl_image
->load_addr
);
39 debug("read %x sectors to %x\n", image_size_sectors
,
40 spl_image
->load_addr
);
41 if (count
!= image_size_sectors
)
47 static ulong
h_spl_load_read(struct spl_load_info
*load
, ulong sector
,
48 ulong count
, void *buf
)
50 struct mmc
*mmc
= load
->dev
;
52 return blk_dread(mmc_get_blk_desc(mmc
), sector
, count
, buf
);
55 static int mmc_load_image_raw_sector(struct spl_image_info
*spl_image
,
56 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
= blk_dread(mmc_get_blk_desc(mmc
), 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(spl_image
, 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 spl_image_info
*spl_image
,
155 struct mmc
*mmc
, int partition
)
157 disk_partition_t info
;
160 err
= part_get_info(mmc_get_blk_desc(mmc
), partition
, &info
);
162 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
163 puts("spl: partition error\n");
168 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
169 return mmc_load_image_raw_sector(spl_image
, mmc
,
170 info
.start
+ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
);
172 return mmc_load_image_raw_sector(spl_image
, mmc
, info
.start
);
176 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION -1
177 static int mmc_load_image_raw_partition(struct spl_image_info
*spl_image
,
178 struct mmc
*mmc
, int partition
)
184 #ifdef CONFIG_SPL_OS_BOOT
185 static int mmc_load_image_raw_os(struct spl_image_info
*spl_image
,
191 count
= blk_dread(mmc_get_blk_desc(mmc
),
192 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR
,
193 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS
,
194 (void *) CONFIG_SYS_SPL_ARGS_ADDR
);
196 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
197 puts("mmc_load_image_raw_os: mmc block read error\n");
202 ret
= mmc_load_image_raw_sector(spl_image
, mmc
,
203 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR
);
207 if (spl_image
->os
!= IH_OS_LINUX
) {
208 puts("Expected Linux image is not found. Trying to start U-boot\n");
215 int spl_start_uboot(void)
219 static int mmc_load_image_raw_os(struct spl_image_info
*spl_image
,
226 #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
227 static int spl_mmc_do_fs_boot(struct spl_image_info
*spl_image
, struct mmc
*mmc
)
231 #ifdef CONFIG_SPL_FAT_SUPPORT
232 if (!spl_start_uboot()) {
233 err
= spl_load_image_fat_os(mmc_get_blk_desc(mmc
),
234 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
);
238 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
239 err
= spl_load_image_fat(mmc_get_blk_desc(mmc
),
240 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
,
241 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
);
246 #ifdef CONFIG_SPL_EXT_SUPPORT
247 if (!spl_start_uboot()) {
248 err
= spl_load_image_ext_os(&mmc
->block_dev
,
249 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
);
253 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
254 err
= spl_load_image_ext(&mmc
->block_dev
,
255 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
,
256 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
);
262 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
269 static int spl_mmc_do_fs_boot(struct spl_image_info
*spl_image
, struct mmc
*mmc
)
275 static int spl_mmc_load_image(struct spl_image_info
*spl_image
,
276 struct spl_boot_device
*bootdev
)
278 struct mmc
*mmc
= NULL
;
281 __maybe_unused
int part
;
283 err
= spl_mmc_find_device(&mmc
, bootdev
->boot_device
);
289 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
290 printf("spl: mmc init failed with error: %d\n", err
);
295 boot_mode
= spl_boot_mode(bootdev
->boot_device
);
298 case MMCSD_MODE_EMMCBOOT
:
300 * We need to check what the partition is configured to.
301 * 1 and 2 match up to boot0 / boot1 and 7 is user data
302 * which is the first physical partition (0).
304 part
= (mmc
->part_config
>> 3) & PART_ACCESS_MASK
;
309 err
= blk_dselect_hwpart(mmc_get_blk_desc(mmc
), part
);
311 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
312 puts("spl: mmc partition switch failed\n");
318 debug("spl: mmc boot mode: raw\n");
320 if (!spl_start_uboot()) {
321 err
= mmc_load_image_raw_os(spl_image
, mmc
);
326 err
= mmc_load_image_raw_partition(spl_image
, mmc
,
327 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
);
330 #if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR)
331 err
= mmc_load_image_raw_sector(spl_image
, mmc
,
332 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
);
336 /* If RAW mode fails, try FS mode. */
338 debug("spl: mmc boot mode: fs\n");
340 err
= spl_mmc_do_fs_boot(spl_image
, mmc
);
345 case MMCSD_MODE_UNDEFINED
:
346 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
348 puts("spl: mmc: wrong boot mode\n");
355 SPL_LOAD_IMAGE_METHOD(0, BOOT_DEVICE_MMC1
, spl_mmc_load_image
);
356 SPL_LOAD_IMAGE_METHOD(0, BOOT_DEVICE_MMC2
, spl_mmc_load_image
);
357 SPL_LOAD_IMAGE_METHOD(0, BOOT_DEVICE_MMC2_2
, spl_mmc_load_image
);