4 * Ma Haijun <mahaijuns@gmail.com>
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #include <asm/u-boot.h>
27 #include <asm/utils.h>
33 /* should be implemented by board */
34 extern void spl_block_device_init(void);
36 block_dev_desc_t
* spl_get_block_device(void)
38 block_dev_desc_t
* device
;
40 spl_block_device_init();
42 device
= get_dev(CONFIG_SPL_BLOCKDEV_INTERFACE
, CONFIG_SPL_BLOCKDEV_ID
);
44 printf("blk device %s%d not exists\n",
45 CONFIG_SPL_BLOCKDEV_INTERFACE
,
46 CONFIG_SPL_BLOCKDEV_ID
);
53 #ifdef CONFIG_SPL_FAT_SUPPORT
54 static int block_load_image_fat(const char *filename
)
57 struct image_header
*header
;
59 header
= (struct image_header
*)(CONFIG_SYS_TEXT_BASE
-
60 sizeof(struct image_header
));
62 err
= file_fat_read(filename
, header
, sizeof(struct image_header
));
66 spl_parse_image_header(header
);
68 err
= file_fat_read(filename
, (u8
*)spl_image
.load_addr
, 0);
72 printf("spl: error reading image %s, err - %d\n",
78 #ifdef CONFIG_SPL_OS_BOOT
79 static int block_load_image_fat_os(void)
83 err
= file_fat_read(CONFIG_SPL_FAT_LOAD_ARGS_NAME
,
84 (void *)CONFIG_SYS_SPL_ARGS_ADDR
, 0);
89 return block_load_image_fat(CONFIG_SPL_FAT_LOAD_KERNEL_NAME
);
93 void spl_block_load_image(void)
96 block_dev_desc_t
* device
;
98 device
= spl_get_block_device();
99 err
= fat_register_device(device
, CONFIG_BLOCKDEV_FAT_BOOT_PARTITION
);
101 printf("spl: fat register err - %d\n", err
);
104 #ifdef CONFIG_SPL_OS_BOOT
105 if (spl_start_uboot() || block_load_image_fat_os())
108 err
= block_load_image_fat(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME
);
113 #elif defined(CONFIG_SPL_EXT4_SUPPORT) /* end CONFIG_SPL_FAT_SUPPORT */
114 static int block_load_image_ext4(const char *filename
)
117 struct image_header
*header
;
119 header
= (struct image_header
*)(CONFIG_SYS_TEXT_BASE
-
120 sizeof(struct image_header
));
122 err
= ext4_read_file(filename
, header
, 0, sizeof(struct image_header
));
126 spl_parse_image_header(header
);
128 err
= ext4_read_file(filename
, (u8
*)spl_image
.load_addr
, 0, 0);
134 #ifdef CONFIG_SPL_OS_BOOT
135 static int block_load_image_ext4_os(void)
139 err
= ext4_read_file(CONFIG_SPL_EXT4_LOAD_ARGS_NAME
,
140 (void *)CONFIG_SYS_SPL_ARGS_ADDR
, 0, 0);
145 return block_load_image_ext4(CONFIG_SPL_EXT4_LOAD_KERNEL_NAME
);
149 void spl_block_load_image(void)
152 block_dev_desc_t
* device
;
154 device
= spl_get_block_device();
155 err
= ext4_register_device(device
, CONFIG_BLOCKDEV_EXT4_BOOT_PARTITION
);
159 #ifdef CONFIG_SPL_OS_BOOT
160 if (spl_start_uboot() || block_load_image_ext4_os())
163 err
= block_load_image_ext4(CONFIG_SPL_EXT4_LOAD_PAYLOAD_NAME
);
168 #else /* end CONFIG_SPL_EXT4_SUPPORT */
169 static int block_load_image_raw(block_dev_desc_t
* device
, lbaint_t sector
)
172 u32 image_size_sectors
;
173 struct image_header
*header
;
175 header
= (struct image_header
*)(CONFIG_SYS_TEXT_BASE
-
176 sizeof(struct image_header
));
178 /* read image header to find the image size & load address */
179 n
= device
->block_read(device
->dev
, sector
, 1, header
);
182 printf("spl: blk read err\n");
186 spl_parse_image_header(header
);
188 /* convert size to sectors - round up */
189 image_size_sectors
= (spl_image
.size
+ 512 - 1) / 512;
190 n
= device
->block_read(device
->dev
, sector
, image_size_sectors
,
191 (void *)spl_image
.load_addr
);
193 if (n
!= image_size_sectors
) {
194 printf("spl: blk read err\n");
200 #ifdef CONFIG_SPL_OS_BOOT
201 static int block_load_image_raw_os(block_dev_desc_t
* device
)
205 n
= device
->block_read(device
->dev
, CONFIG_SYS_BLOCK_RAW_MODE_ARGS_SECTOR
,
206 CONFIG_SYS_BLOCK_RAW_MODE_ARGS_SECTORS
,
207 (u32
*)CONFIG_SYS_SPL_ARGS_ADDR
);
208 /* flush cache after read */
209 flush_cache(addr
, CONFIG_SYS_BLOCK_RAW_MODE_ARGS_SECTORS
* 512);
211 if (n
!= CONFIG_SYS_BLOCK_RAW_MODE_ARGS_SECTORS
) {
212 printf("args blk read error\n");
216 return block_load_image_raw(device
, CONFIG_SYS_BLOCK_RAW_MODE_KERNEL_SECTOR
);
220 void spl_block_load_image(void)
223 block_dev_desc_t
* device
;
225 device
= spl_get_block_device();
226 #ifdef CONFIG_SPL_OS_BOOT
227 if (spl_start_uboot() || block_load_image_raw_os(device
))
230 err
= block_load_image_raw(device
,
231 CONFIG_SYS_BLOCK_RAW_MODE_U_BOOT_SECTOR
);
236 #endif /* CONFIG_SPL_FAT_SUPPORT */