[U-Boot] [PATCH 2/2] ARM: at91sam9x5: enable MCI0 support for 9x5ek board.

[Josh Wu]

Hi, Voice

On 9/12/2012 6:21 PM, Josh Wu wrote:
> Hi, Voice
>
> On 9/10/2012 4:07 PM, Bo Shen wrote:
>> Hi Josh,
>>
>> On 9/7/2012 18:39, Josh Wu wrote:
>>>
>>> Signed-off-by: Josh Wu <josh.wu at atmel.com>
>>> ---
>>>   arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c |   13 +++++++++++++
>>>   board/atmel/at91sam9x5ek/at91sam9x5ek.c          |   16 
>>> ++++++++++++++++
>>>   include/configs/at91sam9x5ek.h                   |    8 ++++++++
>>>   3 files changed, 37 insertions(+)
>>>
>>
>> I think add MCI1 support at the same time will be better. Otherwise,

After checking the datasheet, The SPI0 has conflict with MCI1 in pin 
PA11, PA12, PA13.
So I decide NOT enable MCI1 in 9x5ek u-boot since SPI0 is maybe most 
used for common cases.

>>
>> Acked-by: voice.shen at atmel.com
>> Tested-by: voice.shen at atmel.com
>>
>
> Thanks for the testing. If this patch will be accepted. then I will 
> add MCI1 support in later patch.
>
> Best Regards,
> Josh Wu
>
>>> diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c 
>>> b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
>>> index 6d77219..3608e7c 100644
>>> --- a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
>>> +++ b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
>>> @@ -230,3 +230,16 @@ void at91_macb_hw_init(void)
>>>   #endif
>>>   }
>>>   #endif
>>> +
>>> +#if defined(CONFIG_GENERIC_ATMEL_MCI)
>>> +void at91_mci_hw_init(void)
>>> +{
>>> +    /* Initialize the MCI0 */
>>> +    at91_set_a_periph(AT91_PIO_PORTA, 17, 1);    /* MCCK */
>>> +    at91_set_a_periph(AT91_PIO_PORTA, 16, 1);    /* MCCDA */
>>> +    at91_set_a_periph(AT91_PIO_PORTA, 15, 1);    /* MCDA0 */
>>> +    at91_set_a_periph(AT91_PIO_PORTA, 18, 1);    /* MCDA1 */
>>> +    at91_set_a_periph(AT91_PIO_PORTA, 19, 1);    /* MCDA2 */
>>> +    at91_set_a_periph(AT91_PIO_PORTA, 20, 1);    /* MCDA3 */
>>> +}
>>> +#endif
>>> diff --git a/board/atmel/at91sam9x5ek/at91sam9x5ek.c 
>>> b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
>>> index 06028aa..d1f05ef 100644
>>> --- a/board/atmel/at91sam9x5ek/at91sam9x5ek.c
>>> +++ b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
>>> @@ -42,6 +42,9 @@
>>>   #ifdef CONFIG_ATMEL_SPI
>>>   #include <spi.h>
>>>   #endif
>>> +#ifdef CONFIG_GENERIC_ATMEL_MCI
>>> +#include <mmc.h>
>>> +#endif
>>>
>>>   DECLARE_GLOBAL_DATA_PTR;
>>>
>>> @@ -258,6 +261,19 @@ void spi_cs_deactivate(struct spi_slave *slave)
>>>   }
>>>   #endif /* CONFIG_ATMEL_SPI */
>>>
>>> +#ifdef CONFIG_GENERIC_ATMEL_MCI
>>> +int board_mmc_init(bd_t *bd)
>>> +{
>>> +    /* Enable clock */
>>> +    struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
>>> +    writel(1 << ATMEL_ID_HSMCI0, &pmc->pcer);
>>> +
>>> +    at91_mci_hw_init();
>>> +
>>> +    return atmel_mci_init((void *)ATMEL_BASE_HSMCI0);
>>> +}
>>> +#endif
>>> +
>>>   int board_early_init_f(void)
>>>   {
>>>       at91_seriald_hw_init();
>>> diff --git a/include/configs/at91sam9x5ek.h 
>>> b/include/configs/at91sam9x5ek.h
>>> index 1ceb31a..974e08f 100644
>>> --- a/include/configs/at91sam9x5ek.h
>>> +++ b/include/configs/at91sam9x5ek.h
>>> @@ -136,6 +136,14 @@
>>>   #define CONFIG_CMD_UBIFS
>>>   #endif
>>>
>>> +/* MMC */
>>> +#define CONFIG_MMC
>>> +#define CONFIG_CMD_MMC
>>> +#define CONFIG_CMD_FAT
>>> +#define CONFIG_GENERIC_MMC
>>> +#define CONFIG_GENERIC_ATMEL_MCI
>>> +#define CONFIG_DOS_PARTITION
>>> +
>>>   /* Ethernet */
>>>   #define CONFIG_MACB
>>>   #define CONFIG_RMII
>>>
>>
>