[U-Boot] [PATCH 3/6] sunxi: Turn MMC_SUNXI_SLOT_EXTRA into a proper Kconfig option

[Hans de Goede <hdegoede@redhat.com>]

Hi,

On 10/04/2014 10:32 AM, Ian Campbell wrote:
> On Fri, 2014-10-03 at 17:05 +0200, Hans de Goede wrote:
>> Note we also drop the SPL check for initializing the 2nd mmc slot, the SPL
>> check is not necessary with Kconfig, because only options explicitly marked
>> as also being for the SPL get set during SPL builds.
>>
>> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> 
> If we come across a system with e.g. 3 slots then this is just going to
> get more complex, isn't it? Shall we bite the bullet now and got
> straight to a bool option per potential slot?

I think that the current solution is somewhat more KISS then doing a bool
per slot. So lets wait with moving to a bool per mmc controller, until such
a hypothetical board with 3 mmc slots actually shows up, and keep what we've
for now.

Regards,

Hans


> 
>> ---
>>  board/sunxi/Kconfig | 8 ++++++++
>>  board/sunxi/board.c | 2 +-
>>  2 files changed, 9 insertions(+), 1 deletion(-)
>>
>> diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
>> index 72d6dfa..c9b459a 100644
>> --- a/board/sunxi/Kconfig
>> +++ b/board/sunxi/Kconfig
>> @@ -32,6 +32,14 @@ config USB_KEYBOARD
>>  	Say Y here to add support for using a USB keyboard (typically used
>>  	in combination with a graphical console on HDMI).
>>  
>> +config MMC_SUNXI_SLOT_EXTRA
>> +	int "mmc extra slot number"
>> +	default -1
>> +	---help---
>> +	sunxi builds always enable mmc0, some boards also have a sdcard slot
>> +	or emmc on mmc2 or mmc3. Setting this to 2 or 3 will enable support
>> +	for this.
>> +
>>  config MMC0_CD_PIN
>>  	int "Card detect pin for mmc0"
>>  	default -1
>> diff --git a/board/sunxi/board.c b/board/sunxi/board.c
>> index e819b12..4d602ca 100644
>> --- a/board/sunxi/board.c
>> +++ b/board/sunxi/board.c
>> @@ -110,7 +110,7 @@ int board_mmc_init(bd_t *bis)
>>  {
>>  	mmc_pinmux_setup(CONFIG_MMC_SUNXI_SLOT);
>>  	sunxi_mmc_init(CONFIG_MMC_SUNXI_SLOT);
>> -#if !defined (CONFIG_SPL_BUILD) && defined (CONFIG_MMC_SUNXI_SLOT_EXTRA)
>> +#if CONFIG_MMC_SUNXI_SLOT_EXTRA != -1
>>  	mmc_pinmux_setup(CONFIG_MMC_SUNXI_SLOT_EXTRA);
>>  	sunxi_mmc_init(CONFIG_MMC_SUNXI_SLOT_EXTRA);
>>  #endif
> 
>