Jaehoon Chung wrote:
>
> In mmc, there are capabilities and use the host_caps.
> That capability is expressed with bit[0:31].
> But now..already filled the bit[0:31]...
> so we need to denote with the other capability field.
> (if we want to use the cache, powerclass, etc for eMMC..this field is
necessary)
>
Hi,
This description is better than previous.
However, I wonder this is _really_ used for eMMC at sdhci-s3c.c driver.
Thanks.
Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.
> Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
> Signed-off-by: Kyungmin Park <Kyungmin.park@xxxxxxxxxxx>
> ---
> Changelog v2:
> - based-on samsung-soc's for-next tree.
>
> arch/arm/plat-samsung/include/plat/sdhci.h | 2 ++
> arch/arm/plat-samsung/platformdata.c | 2 ++
> 2 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-
> samsung/include/plat/sdhci.h
> index dcff7dd..bf33ea1 100644
> --- a/arch/arm/plat-samsung/include/plat/sdhci.h
> +++ b/arch/arm/plat-samsung/include/plat/sdhci.h
> @@ -40,6 +40,7 @@ enum clk_types {
> * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
> * @max_width: The maximum number of data bits supported.
> * @host_caps: Standard MMC host capabilities bit field.
> + * @host_caps2: The Second Standard MMC host capabilities bit field.
> * @cd_type: Type of Card Detection method (see cd_types enum above)
> * @clk_type: Type of clock divider method (see clk_types enum above)
> * @ext_cd_init: Initialize external card detect subsystem. Called on
> @@ -63,6 +64,7 @@ enum clk_types {
> struct s3c_sdhci_platdata {
> unsigned int max_width;
> unsigned int host_caps;
> + unsigned int host_caps2;
> enum cd_types cd_type;
> enum clk_types clk_type;
>
> diff --git a/arch/arm/plat-samsung/platformdata.c b/arch/arm/plat-
> samsung/platformdata.c
> index 4c9a207..5ffcf46 100644
> --- a/arch/arm/plat-samsung/platformdata.c
> +++ b/arch/arm/plat-samsung/platformdata.c
> @@ -54,4 +54,6 @@ void s3c_sdhci_set_platdata(struct s3c_sdhci_platdata
*pd,
> set->host_caps |= pd->host_caps;
> if (pd->clk_type)
> set->clk_type = pd->clk_type;
> + if (pd->host_caps2)
> + set->host_caps2 |= pd->host_caps2;
> }
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