[U-Boot] [PATCH] ARM: at91: mmc portA support is only for at91sam9g20ek_2mmc board

[Bo Shen <voice.shen@atmel.com>]

Hi Josh,

On 01/19/2015 03:25 PM, Josh Wu wrote:
> Current the MMC support will enable MCI port A, Which is only exist
> for 2mmc board.
> So by default we need to disable MMC (port A) support. And only enable
> it for 2mmc board. Otherwise, dataflash won't work in at91sam9260ek board
> as MMC has confliction with Dataflash in the CLK pin.
>
> Signed-off-by: Josh Wu <josh.wu@atmel.com>
> ---
>
>   configs/at91sam9g20ek_2mmc_defconfig | 3 +++
>   configs/at91sam9g20ek_mmc_defconfig  | 3 ---
>   include/configs/at91sam9260ek.h      | 6 ++++--
>   3 files changed, 7 insertions(+), 5 deletions(-)
>   create mode 100644 configs/at91sam9g20ek_2mmc_defconfig
>   delete mode 100644 configs/at91sam9g20ek_mmc_defconfig
>
> diff --git a/configs/at91sam9g20ek_2mmc_defconfig b/configs/at91sam9g20ek_2mmc_defconfig
> new file mode 100644
> index 0000000..4eef04f
> --- /dev/null
> +++ b/configs/at91sam9g20ek_2mmc_defconfig
> @@ -0,0 +1,3 @@
> +CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9G20,AT91SAM9G20EK_2MMC,SYS_USE_MMC"
> +CONFIG_ARM=y
> +CONFIG_TARGET_AT91SAM9260EK=y
> diff --git a/configs/at91sam9g20ek_mmc_defconfig b/configs/at91sam9g20ek_mmc_defconfig
> deleted file mode 100644
> index 8cca2e5..0000000
> --- a/configs/at91sam9g20ek_mmc_defconfig
> +++ /dev/null

If removed this default configuration file, we can not use mmc at all, 
am I right?

> @@ -1,3 +0,0 @@
> -CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9G20,SYS_USE_MMC"
> -CONFIG_ARM=y
> -CONFIG_TARGET_AT91SAM9260EK=y
> diff --git a/include/configs/at91sam9260ek.h b/include/configs/at91sam9260ek.h
> index a6a80de..c4b2e16 100644
> --- a/include/configs/at91sam9260ek.h
> +++ b/include/configs/at91sam9260ek.h
> @@ -90,7 +90,6 @@
>   #define CONFIG_CMD_PING		1
>   #define CONFIG_CMD_DHCP		1
>   #define CONFIG_CMD_NAND		1
> -#define CONFIG_CMD_MMC
>   #define CONFIG_CMD_FAT
>   #define CONFIG_CMD_USB		1
>
> @@ -133,14 +132,17 @@
>   # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9260EK
>   #endif
>
> -/* DataFlash */
>   #ifndef CONFIG_AT91SAM9G20EK_2MMC
> +/* DataFlash */
>   #define CONFIG_ATMEL_DATAFLASH_SPI
>   #define CONFIG_HAS_DATAFLASH		1
>   #define CONFIG_SYS_MAX_DATAFLASH_BANKS		2
>   #define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* CS0 */
>   #define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS1	0xD0000000	/* CS1 */
>   #define AT91_SPI_CLK			15000000
> +#else
> +/* Enable MMC. The MCCK is conflicted with DataFlash */
> +#define CONFIG_CMD_MMC
>   #endif
>
>   #ifdef CONFIG_AT91SAM9G20EK
>

Best Regards,
Bo Shen