diff options
Diffstat (limited to 'package/boot/uboot-oxnas/files/common/spl/spl_block.c')
| -rw-r--r-- | package/boot/uboot-oxnas/files/common/spl/spl_block.c | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/package/boot/uboot-oxnas/files/common/spl/spl_block.c b/package/boot/uboot-oxnas/files/common/spl/spl_block.c new file mode 100644 index 0000000..f16413a --- /dev/null +++ b/package/boot/uboot-oxnas/files/common/spl/spl_block.c @@ -0,0 +1,236 @@ +/* + * (C) Copyright 2013 + * + * Ma Haijun <mahaijuns@gmail.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> +#include <spl.h> +#include <asm/u-boot.h> +#include <asm/utils.h> +#include <version.h> +#include <part.h> +#include <fat.h> +#include <ext4fs.h> + +/* should be implemented by board */ +extern void spl_block_device_init(void); + +block_dev_desc_t * spl_get_block_device(void) +{ + block_dev_desc_t * device; + + spl_block_device_init(); + + device = get_dev(CONFIG_SPL_BLOCKDEV_INTERFACE, CONFIG_SPL_BLOCKDEV_ID); + if (!device) { + printf("blk device %s%d not exists\n", + CONFIG_SPL_BLOCKDEV_INTERFACE, + CONFIG_SPL_BLOCKDEV_ID); + hang(); + } + + return device; +} + +#ifdef CONFIG_SPL_FAT_SUPPORT +static int block_load_image_fat(const char *filename) +{ + int err; + struct image_header *header; + + header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - + sizeof(struct image_header)); + + err = file_fat_read(filename, header, sizeof(struct image_header)); + if (err <= 0) + goto end; + + spl_parse_image_header(header); + + err = file_fat_read(filename, (u8 *)spl_image.load_addr, 0); + +end: + if (err <= 0) + printf("spl: error reading image %s, err - %d\n", + filename, err); + + return (err <= 0); +} + +#ifdef CONFIG_SPL_OS_BOOT +static int block_load_image_fat_os(void) +{ + int err; + + err = file_fat_read(CONFIG_SPL_FAT_LOAD_ARGS_NAME, + (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0); + if (err <= 0) { + return -1; + } + + return block_load_image_fat(CONFIG_SPL_FAT_LOAD_KERNEL_NAME); +} +#endif + +void spl_block_load_image(void) +{ + int err; + block_dev_desc_t * device; + + device = spl_get_block_device(); + err = fat_register_device(device, CONFIG_BLOCKDEV_FAT_BOOT_PARTITION); + if (err) { + printf("spl: fat register err - %d\n", err); + hang(); + } +#ifdef CONFIG_SPL_OS_BOOT + if (spl_start_uboot() || block_load_image_fat_os()) +#endif + { + err = block_load_image_fat(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME); + if (err) + hang(); + } +} +#elif defined(CONFIG_SPL_EXT4_SUPPORT) /* end CONFIG_SPL_FAT_SUPPORT */ +static int block_load_image_ext4(const char *filename) +{ + int err; + struct image_header *header; + + header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - + sizeof(struct image_header)); + + err = ext4_read_file(filename, header, 0, sizeof(struct image_header)); + if (err <= 0) + goto end; + + spl_parse_image_header(header); + + err = ext4_read_file(filename, (u8 *)spl_image.load_addr, 0, 0); + +end: + return (err <= 0); +} + +#ifdef CONFIG_SPL_OS_BOOT +static int block_load_image_ext4_os(void) +{ + int err; + + err = ext4_read_file(CONFIG_SPL_EXT4_LOAD_ARGS_NAME, + (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0, 0); + if (err <= 0) { + return -1; + } + + return block_load_image_ext4(CONFIG_SPL_EXT4_LOAD_KERNEL_NAME); +} +#endif + +void spl_block_load_image(void) +{ + int err; + block_dev_desc_t * device; + + device = spl_get_block_device(); + err = ext4_register_device(device, CONFIG_BLOCKDEV_EXT4_BOOT_PARTITION); + if (err) { + hang(); + } +#ifdef CONFIG_SPL_OS_BOOT + if (spl_start_uboot() || block_load_image_ext4_os()) +#endif + { + err = block_load_image_ext4(CONFIG_SPL_EXT4_LOAD_PAYLOAD_NAME); + if (err) + hang(); + } +} +#else /* end CONFIG_SPL_EXT4_SUPPORT */ +static int block_load_image_raw(block_dev_desc_t * device, lbaint_t sector) +{ + int n; + u32 image_size_sectors; + struct image_header *header; + + header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - + sizeof(struct image_header)); + + /* read image header to find the image size & load address */ + n = device->block_read(device->dev, sector, 1, header); + + if (n != 1) { + printf("spl: blk read err\n"); + return 1; + } + + spl_parse_image_header(header); + + /* convert size to sectors - round up */ + image_size_sectors = (spl_image.size + 512 - 1) / 512; + n = device->block_read(device->dev, sector, image_size_sectors, + (void *)spl_image.load_addr); + + if (n != image_size_sectors) { + printf("spl: blk read err\n"); + return 1; + } + return 0; +} + +#ifdef CONFIG_SPL_OS_BOOT +static int block_load_image_raw_os(block_dev_desc_t * device) +{ + int n; + + n = device->block_read(device->dev, CONFIG_SYS_BLOCK_RAW_MODE_ARGS_SECTOR, + CONFIG_SYS_BLOCK_RAW_MODE_ARGS_SECTORS, + (u32 *)CONFIG_SYS_SPL_ARGS_ADDR); + /* flush cache after read */ + flush_cache(addr, CONFIG_SYS_BLOCK_RAW_MODE_ARGS_SECTORS * 512); + + if (n != CONFIG_SYS_BLOCK_RAW_MODE_ARGS_SECTORS) { + printf("args blk read error\n"); + return -1; + } + + return block_load_image_raw(device, CONFIG_SYS_BLOCK_RAW_MODE_KERNEL_SECTOR); +} +#endif + +void spl_block_load_image(void) +{ + int err; + block_dev_desc_t * device; + + device = spl_get_block_device(); +#ifdef CONFIG_SPL_OS_BOOT + if (spl_start_uboot() || block_load_image_raw_os(device)) +#endif + { + err = block_load_image_raw(device, + CONFIG_SYS_BLOCK_RAW_MODE_U_BOOT_SECTOR); + if (err) + hang(); + } +} +#endif /* CONFIG_SPL_FAT_SUPPORT */ |