[U-Boot] [PATCH 1/9] ARM: sunxi: Fix build break when CONFIG_MMC is not defined

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

Hi,

On 10/11/2014 05:50 PM, Ian Campbell wrote:
> On Tue, 2014-10-07 at 15:11 +0800, Chen-Yu Tsai wrote:
>> BOOT_TARGET_DEVICES includes MMC unconditionally. This breaks when
>> CONFIG_CMD_MMC is not defined. Use a secondary macro to conditionally
>> include it when CONFIG_MMC is enabled, as we do for CONFIG_AHCI.
>>
>> This is used when we want to use uart0 from port F, which conflicts
>> with mmc0.
>>
>> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> 
> Acked-by: Ian Campbell <ijc@hellion.org.uk>
> 
> Hans, this made me think back to your " Enable second sdcard slot found
> on some boards" series -- do you not want to add mmc1 as a boot target
> device when  MMC_SUNXI_SLOT_EXTRA is enabled?

An interesting question. u-boot itself is always running of mmc 0, or loaded
through FEL, but that does not mean that e.g. extlinux.conf + the kernel and dts
could not be on mmc 1. So yes I guess we do want to add mmc 1 as boot target.

First lets get Chen's patches + my existing second mmc slot set merged into
u-boot-sunxi next, and then I'll do a patch on top of that.

Regards,

Hans


> 
>> ---
>>  include/configs/sunxi-common.h | 8 +++++++-
>>  1 file changed, 7 insertions(+), 1 deletion(-)
>>
>> diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
>> index a31656e..7571e0e 100644
>> --- a/include/configs/sunxi-common.h
>> +++ b/include/configs/sunxi-common.h
>> @@ -227,6 +227,12 @@
>>  	"pxefile_addr_r=0x43200000\0" \
>>  	"ramdisk_addr_r=0x43300000\0"
>>  
>> +#ifdef CONFIG_MMC
>> +#define BOOT_TARGET_DEVICES_MMC(func) func(MMC, mmc, 0)
>> +#else
>> +#define BOOT_TARGET_DEVICES_MMC(func)
>> +#endif
>> +
>>  #ifdef CONFIG_AHCI
>>  #define BOOT_TARGET_DEVICES_SCSI(func) func(SCSI, scsi, 0)
>>  #else
>> @@ -240,7 +246,7 @@
>>  #endif
>>  
>>  #define BOOT_TARGET_DEVICES(func) \
>> -	func(MMC, mmc, 0) \
>> +	BOOT_TARGET_DEVICES_MMC(func) \
>>  	BOOT_TARGET_DEVICES_SCSI(func) \
>>  	BOOT_TARGET_DEVICES_USB(func) \
>>  	func(PXE, pxe, na) \
> 
>