diff options
| author | Haijun.Zhang <Haijun.Zhang@freescale.com> | 2014-01-10 13:52:19 +0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-01-22 08:56:44 -0800 |
| commit | f28bea0003536976ebe2fb299cfc140702fec489 (patch) | |
| tree | e6550435d4b4f314ced7952274bd2ab3b62b2f75 /board/freescale/common/sdhc_boot.c | |
| parent | d47e3d27078dd7419c41e1f8f56dcc221511dd5d (diff) | |
eSDHC: Calculate envaddr accroding to the address format
On BSC9131, BSC9132, P1010 : For High Capacity SD Cards (> 2 GBytes), the
32-bit source address specifies the memory address in block address
format. Block length is fixed to 512 bytes as per the SD High Capacity
specification. So we need to convert the block address format
to byte address format to calculate the envaddr.
If there is no enough space for environment variables or envaddr
is larger than 4GiB, we relocate the envaddr to 0x400. The address
relocated is in the front of the first partition that is assigned
for sdboot only.
Signed-off-by: Haijun Zhang <haijun.zhang@freescale.com>
Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/common/sdhc_boot.c')
| -rw-r--r-- | board/freescale/common/sdhc_boot.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/board/freescale/common/sdhc_boot.c b/board/freescale/common/sdhc_boot.c index f6e2b2bbd6..022f38b117 100644 --- a/board/freescale/common/sdhc_boot.c +++ b/board/freescale/common/sdhc_boot.c @@ -16,6 +16,8 @@ #define ESDHC_BOOT_IMAGE_SIZE 0x48 #define ESDHC_BOOT_IMAGE_ADDR 0x50 +#define ESDHC_DEFAULT_ENVADDR 0x400 + int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr) { u8 *tmp_buf; @@ -39,6 +41,33 @@ int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr) /* Get the code size from offset 0x48 */ code_len = *(u32 *)(tmp_buf + ESDHC_BOOT_IMAGE_SIZE); +#ifdef CONFIG_ESDHC_HC_BLK_ADDR + /* + * On soc BSC9131, BSC9132: + * In High Capacity SD Cards (> 2 GBytes), the 32-bit source address and + * code length of these soc specify the memory address in block address + * format. Block length is fixed to 512 bytes as per the SD High + * Capacity specification. + */ + u64 tmp; + + if (mmc->high_capacity) { + tmp = (u64)code_offset * blklen; + tmp += code_len * blklen; + } else + tmp = code_offset + code_len; + + if ((tmp + CONFIG_ENV_SIZE > mmc->capacity) || + (tmp > 0xFFFFFFFFU)) + *env_addr = ESDHC_DEFAULT_ENVADDR; + else + *env_addr = tmp; + + free(tmp_buf); + + return 0; +#endif + *env_addr = code_offset + code_len; free(tmp_buf); |