diff options
Diffstat (limited to 'drivers/mtd/nand/sunxi_nand_spl.c')
| -rw-r--r-- | drivers/mtd/nand/sunxi_nand_spl.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/drivers/mtd/nand/sunxi_nand_spl.c b/drivers/mtd/nand/sunxi_nand_spl.c index 5985534..b0e07aa 100644 --- a/drivers/mtd/nand/sunxi_nand_spl.c +++ b/drivers/mtd/nand/sunxi_nand_spl.c @@ -356,18 +356,32 @@ static int nand_read_buffer(uint32_t offs, unsigned int size, void *dest, int nand_spl_load_image(uint32_t offs, unsigned int size, void *dest) { +#if CONFIG_SYS_NAND_U_BOOT_OFFS == CONFIG_SPL_PAD_TO + /* + * u-boot-dtb.bin appended to SPL, use syndrome (like the BROM does) + * and try different erase block sizes to find the backup. + */ const uint32_t boot_offsets[] = { 0 * 1024 * 1024 + CONFIG_SYS_NAND_U_BOOT_OFFS, 1 * 1024 * 1024 + CONFIG_SYS_NAND_U_BOOT_OFFS, 2 * 1024 * 1024 + CONFIG_SYS_NAND_U_BOOT_OFFS, 4 * 1024 * 1024 + CONFIG_SYS_NAND_U_BOOT_OFFS, }; - int i, syndrome; - - if (CONFIG_SYS_NAND_U_BOOT_OFFS == CONFIG_SPL_PAD_TO) - syndrome = 1; /* u-boot-dtb.bin appended to SPL */ - else - syndrome = 0; /* u-boot-dtb.bin on its own partition */ + const int syndrome = 1; +#else + /* + * u-boot-dtb.bin on its own partition, do not use syndrome, u-boot + * partition sits after 2 eraseblocks (spl, spl-backup), look for + * backup u-boot 1 erase block further. + */ + const uint32_t eraseblock_size = CONFIG_SYS_NAND_U_BOOT_OFFS / 2; + const uint32_t boot_offsets[] = { + CONFIG_SYS_NAND_U_BOOT_OFFS, + CONFIG_SYS_NAND_U_BOOT_OFFS + eraseblock_size, + }; + const int syndrome = 0; +#endif + int i; if (offs == CONFIG_SYS_NAND_U_BOOT_OFFS) { for (i = 0; i < ARRAY_SIZE(boot_offsets); i++) { |