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

[Josh Wu]

Hi, Bo

On 1/19/2015 4:30 PM, Bo Shen wrote:
> 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 at 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?
I change this file name from 'at91sam9g20ek_mmc_defconfig' to 
'at91sam9g20ek_2mmc_defconfig'.
So only when you use 'at91sam9g20ek_2mmc_defconfig', the mmc is enabled.

Best Regards,
Josh Wu

>
>> @@ -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