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
);
56 int mmc_load_image_raw_sector(struct spl_image_info
*spl_image
,
57 struct mmc
*mmc
, unsigned long sector
)
60 struct image_header
*header
;
63 header
= (struct image_header
*)(CONFIG_SYS_TEXT_BASE
-
64 sizeof(struct image_header
));
66 /* read image header to find the image size & load address */
67 count
= blk_dread(mmc_get_blk_desc(mmc
), sector
, 1, header
);
68 debug("hdr read sector %lx, count=%lu\n", sector
, count
);
74 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT
) &&
75 image_get_magic(header
) == FDT_MAGIC
) {
76 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(spl_image
, &load
, sector
, header
);
86 ret
= mmc_load_legacy(spl_image
, mmc
, sector
, header
);
91 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
92 puts("mmc_load_image_raw_sector: mmc block read error\n");
100 static int spl_mmc_get_device_index(u32 boot_device
)
102 switch (boot_device
) {
103 case BOOT_DEVICE_MMC1
:
105 case BOOT_DEVICE_MMC2
:
106 case BOOT_DEVICE_MMC2_2
:
110 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
111 printf("spl: unsupported mmc boot device.\n");
117 static int spl_mmc_find_device(struct mmc
**mmcp
, u32 boot_device
)
119 #if CONFIG_IS_ENABLED(DM_MMC)
124 mmc_dev
= spl_mmc_get_device_index(boot_device
);
128 err
= mmc_initialize(NULL
);
130 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
131 printf("spl: could not initialize mmc. error: %d\n", err
);
136 #if CONFIG_IS_ENABLED(DM_MMC)
137 err
= uclass_get_device(UCLASS_MMC
, mmc_dev
, &dev
);
139 *mmcp
= mmc_get_mmc_dev(dev
);
141 *mmcp
= find_mmc_device(mmc_dev
);
142 err
= *mmcp
? 0 : -ENODEV
;
145 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
146 printf("spl: could not find mmc device. error: %d\n", err
);
154 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
155 static int mmc_load_image_raw_partition(struct spl_image_info
*spl_image
,
156 struct mmc
*mmc
, int partition
)
158 disk_partition_t info
;
161 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE
163 /* Only support MBR so DOS_ENTRY_NUMBERS */
164 for (type_part
= 1; type_part
<= DOS_ENTRY_NUMBERS
; type_part
++) {
165 err
= part_get_info(mmc_get_blk_desc(mmc
), type_part
, &info
);
169 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE
) {
170 partition
= type_part
;
176 err
= part_get_info(mmc_get_blk_desc(mmc
), partition
, &info
);
178 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
179 puts("spl: partition error\n");
184 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
185 return mmc_load_image_raw_sector(spl_image
, mmc
,
186 info
.start
+ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
);
188 return mmc_load_image_raw_sector(spl_image
, mmc
, info
.start
);
193 #ifdef CONFIG_SPL_OS_BOOT
194 static int mmc_load_image_raw_os(struct spl_image_info
*spl_image
,
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");
211 ret
= mmc_load_image_raw_sector(spl_image
, mmc
,
212 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR
);
216 if (spl_image
->os
!= IH_OS_LINUX
) {
217 puts("Expected Linux image is not found. Trying to start U-boot\n");
224 int spl_start_uboot(void)
228 static int mmc_load_image_raw_os(struct spl_image_info
*spl_image
,
235 #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
236 static int spl_mmc_do_fs_boot(struct spl_image_info
*spl_image
, struct mmc
*mmc
)
240 #ifdef CONFIG_SPL_FAT_SUPPORT
241 if (!spl_start_uboot()) {
242 err
= spl_load_image_fat_os(spl_image
, mmc_get_blk_desc(mmc
),
243 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
);
247 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
248 err
= spl_load_image_fat(spl_image
, mmc_get_blk_desc(mmc
),
249 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
,
250 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
);
255 #ifdef CONFIG_SPL_EXT_SUPPORT
256 if (!spl_start_uboot()) {
257 err
= spl_load_image_ext_os(spl_image
, mmc_get_blk_desc(mmc
),
258 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
);
262 #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
263 err
= spl_load_image_ext(spl_image
, mmc_get_blk_desc(mmc
),
264 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
,
265 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
);
271 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
278 static int spl_mmc_do_fs_boot(struct spl_image_info
*spl_image
, struct mmc
*mmc
)
284 int spl_mmc_load_image(struct spl_image_info
*spl_image
,
285 struct spl_boot_device
*bootdev
)
287 struct mmc
*mmc
= NULL
;
290 __maybe_unused
int part
;
292 err
= spl_mmc_find_device(&mmc
, bootdev
->boot_device
);
298 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
299 printf("spl: mmc init failed with error: %d\n", err
);
304 boot_mode
= spl_boot_mode(bootdev
->boot_device
);
307 case MMCSD_MODE_EMMCBOOT
:
309 * We need to check what the partition is configured to.
310 * 1 and 2 match up to boot0 / boot1 and 7 is user data
311 * which is the first physical partition (0).
313 part
= (mmc
->part_config
>> 3) & PART_ACCESS_MASK
;
318 if (CONFIG_IS_ENABLED(MMC_TINY
))
319 err
= mmc_switch_part(mmc
, part
);
321 err
= blk_dselect_hwpart(mmc_get_blk_desc(mmc
), part
);
324 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
325 puts("spl: mmc partition switch failed\n");
331 debug("spl: mmc boot mode: raw\n");
333 if (!spl_start_uboot()) {
334 err
= mmc_load_image_raw_os(spl_image
, mmc
);
338 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
339 err
= mmc_load_image_raw_partition(spl_image
, mmc
,
340 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
);
344 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
345 err
= mmc_load_image_raw_sector(spl_image
, mmc
,
346 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
);
350 /* If RAW mode fails, try FS mode. */
352 debug("spl: mmc boot mode: fs\n");
354 err
= spl_mmc_do_fs_boot(spl_image
, mmc
);
359 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
361 puts("spl: mmc: wrong boot mode\n");
368 SPL_LOAD_IMAGE_METHOD("MMC1", 0, BOOT_DEVICE_MMC1
, spl_mmc_load_image
);
369 SPL_LOAD_IMAGE_METHOD("MMC2", 0, BOOT_DEVICE_MMC2
, spl_mmc_load_image
);
370 SPL_LOAD_IMAGE_METHOD("MMC2_2", 0, BOOT_DEVICE_MMC2_2
, spl_mmc_load_image
);