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

[Ian Campbell <ijc@hellion.org.uk>]

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?

> ---
>  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