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 %lx\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(spl_image
, &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_USE_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 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE
162 /* Only support MBR so DOS_ENTRY_NUMBERS */
163 for (type_part
= 1; type_part
<= DOS_ENTRY_NUMBERS
; type_part
++) {
164 err
= part_get_info(mmc_get_blk_desc(mmc
), type_part
, &info
);
168 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE
) {
169 partition
= type_part
;
175 err
= part_get_info(mmc_get_blk_desc(mmc
), partition
, &info
);
177 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
178 puts("spl: partition error\n");
183 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
184 return mmc_load_image_raw_sector(spl_image
, mmc
,
185 info
.start
+ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
);
187 return mmc_load_image_raw_sector(spl_image
, mmc
, info
.start
);
192 #ifdef CONFIG_SPL_OS_BOOT
193 static int mmc_load_image_raw_os(struct spl_image_info
*spl_image
,
199 count
= blk_dread(mmc_get_blk_desc(mmc
),
200 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR
,
201 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS
,
202 (void *) CONFIG_SYS_SPL_ARGS_ADDR
);
204 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
205 puts("mmc_load_image_raw_os: mmc block read error\n");
210 ret
= mmc_load_image_raw_sector(spl_image
, mmc
,
211 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR
);
215 if (spl_image
->os
!= IH_OS_LINUX
) {
216 puts("Expected Linux image is not found. Trying to start U-boot\n");
223 int spl_start_uboot(void)
227 static int mmc_load_image_raw_os(struct spl_image_info
*spl_image
,
234 #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
235 static int spl_mmc_do_fs_boot(struct spl_image_info
*spl_image
, struct mmc
*mmc
)
239 #ifdef CONFIG_SPL_FAT_SUPPORT
240 if (!spl_start_uboot()) {
241 err
= spl_load_image_fat_os(spl_image
, mmc_get_blk_desc(mmc
),
242 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
);
246 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
247 err
= spl_load_image_fat(spl_image
, mmc_get_blk_desc(mmc
),
248 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
,
249 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
);
254 #ifdef CONFIG_SPL_EXT_SUPPORT
255 if (!spl_start_uboot()) {
256 err
= spl_load_image_ext_os(spl_image
, mmc_get_blk_desc(mmc
),
257 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
);
261 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
262 err
= spl_load_image_ext(spl_image
, mmc_get_blk_desc(mmc
),
263 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
,
264 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
);
270 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
277 static int spl_mmc_do_fs_boot(struct spl_image_info
*spl_image
, struct mmc
*mmc
)
283 int spl_mmc_load_image(struct spl_image_info
*spl_image
,
284 struct spl_boot_device
*bootdev
)
286 struct mmc
*mmc
= NULL
;
289 __maybe_unused
int part
;
291 err
= spl_mmc_find_device(&mmc
, bootdev
->boot_device
);
297 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
298 printf("spl: mmc init failed with error: %d\n", err
);
303 boot_mode
= spl_boot_mode(bootdev
->boot_device
);
306 case MMCSD_MODE_EMMCBOOT
:
308 * We need to check what the partition is configured to.
309 * 1 and 2 match up to boot0 / boot1 and 7 is user data
310 * which is the first physical partition (0).
312 part
= (mmc
->part_config
>> 3) & PART_ACCESS_MASK
;
317 if (CONFIG_IS_ENABLED(MMC_TINY
))
318 err
= mmc_switch_part(mmc
, part
);
320 err
= blk_dselect_hwpart(mmc_get_blk_desc(mmc
), part
);
323 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
324 puts("spl: mmc partition switch failed\n");
330 debug("spl: mmc boot mode: raw\n");
332 if (!spl_start_uboot()) {
333 err
= mmc_load_image_raw_os(spl_image
, mmc
);
337 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
338 err
= mmc_load_image_raw_partition(spl_image
, mmc
,
339 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
);
343 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
344 err
= mmc_load_image_raw_sector(spl_image
, mmc
,
345 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
);
349 /* If RAW mode fails, try FS mode. */
351 debug("spl: mmc boot mode: fs\n");
353 err
= spl_mmc_do_fs_boot(spl_image
, mmc
);
358 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
360 puts("spl: mmc: wrong boot mode\n");
367 SPL_LOAD_IMAGE_METHOD("MMC1", 0, BOOT_DEVICE_MMC1
, spl_mmc_load_image
);
368 SPL_LOAD_IMAGE_METHOD("MMC2", 0, BOOT_DEVICE_MMC2
, spl_mmc_load_image
);
369 SPL_LOAD_IMAGE_METHOD("MMC2_2", 0, BOOT_DEVICE_MMC2_2
, spl_mmc_load_image
);