Hi,
Anybody think about this patch?
mmcinfo is produce correctly?
if i miss something, let me know, plz.
Best Regards,
Jaehoon Chung
2012/3/27 Jaehoon Chung <jh80.ch...@samsung.com>:
> eMMC card is introduced the eMMC4.5.
> But now eMMC card is checked up to eMMC4.0.
> This patch is supported until eMMC4.5
>
> Signed-off-by: Jaehoon Chung <jh80.ch...@samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
> ---
> common/cmd_mmc.c | 5 ++++-
> drivers/mmc/mmc.c | 25 +++++++++++++++++++++++++
> include/mmc.h | 8 ++++++++
> 3 files changed, 37 insertions(+), 1 deletions(-)
>
> diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
> index 8f13c22..ff150ca 100644
> --- a/common/cmd_mmc.c
> +++ b/common/cmd_mmc.c
> @@ -106,7 +106,10 @@ static void print_mmcinfo(struct mmc *mmc)
> printf("Rd Block Len: %d\n", mmc->read_bl_len);
>
> printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
> - (mmc->version >> 4) & 0xf, mmc->version & 0xf);
> + (mmc->version >> 4) & 0xf,
> + (mmc->version & 0xf) == EXT_CSD_REV_1_5 ?
> + 41 :((mmc->version & 0xf) > EXT_CSD_REV_1_5 ?
> + (mmc->version & 0xf) - 1 : (mmc->version & 0xf)));
>
> printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
> puts("Capacity: ");
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index 49c3349..e035012 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -651,6 +651,31 @@ int mmc_change_freq(struct mmc *mmc)
> if (err)
> return err;
>
> + switch (ext_csd[EXT_CSD_REV]) {
> + case EXT_CSD_REV_1_0:
> + mmc->version |= EXT_CSD_REV_1_0;
> + break;
> + case EXT_CSD_REV_1_1:
> + mmc->version |= EXT_CSD_REV_1_1;
> + break;
> + case EXT_CSD_REV_1_2:
> + mmc->version |= EXT_CSD_REV_1_2;
> + break;
> + case EXT_CSD_REV_1_3:
> + mmc->version |= EXT_CSD_REV_1_3;
> + break;
> + case EXT_CSD_REV_1_5:
> + mmc->version |= EXT_CSD_REV_1_5;
> + break;
> + case EXT_CSD_REV_1_6:
> + mmc->version |= EXT_CSD_REV_1_6;
> + break;
> + case EXT_CSD_REV_1_4:
> + default:
> + printf("Unknown revision - %x\n", ext_csd[EXT_CSD_REV]);
> + return 0;
> + }
> +
> /* No high-speed support */
> if (!ext_csd[EXT_CSD_HS_TIMING])
> return 0;
> diff --git a/include/mmc.h b/include/mmc.h
> index 30c2375..726da99 100644
> --- a/include/mmc.h
> +++ b/include/mmc.h
> @@ -157,6 +157,14 @@
> #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
> #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */
>
> +#define EXT_CSD_REV_1_0 0
> +#define EXT_CSD_REV_1_1 1
> +#define EXT_CSD_REV_1_2 2
> +#define EXT_CSD_REV_1_3 3
> +#define EXT_CSD_REV_1_4 4
> +#define EXT_CSD_REV_1_5 5
> +#define EXT_CSD_REV_1_6 6
> +
> /*
> * EXT_CSD field definitions
> */
> --
> 1.7.4.1
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