[U-Boot] [PATCH 1/2] sunxi-mmc: use new mode on A64

Maxime Ripard maxime.ripard at bootlin.com
Wed May 2 12:04:49 UTC 2018


Hi,

On Sat, Apr 28, 2018 at 02:16:27PM -0700, Vasily Khoruzhick wrote:
> That is necessary for using automatic calibration on A64 eMMC.
> 
> Signed-off-by: Vasily khoruzhick <anarsoul at gmail.com>
> ---
>  arch/arm/mach-sunxi/Kconfig | 1 +
>  drivers/mmc/sunxi_mmc.c     | 4 ++++
>  2 files changed, 5 insertions(+)
> 
> diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> index b868f0e350..774a39f580 100644
> --- a/arch/arm/mach-sunxi/Kconfig
> +++ b/arch/arm/mach-sunxi/Kconfig
> @@ -256,6 +256,7 @@ config MACH_SUN50I
>  	select SUNXI_DE2
>  	select SUNXI_GEN_SUN6I
>  	select SUNXI_HIGH_SRAM
> +	select MMC_SUNXI_HAS_NEW_MODE
>  	select SUPPORT_SPL
>  	select SUNXI_DRAM_DW
>  	select SUNXI_DRAM_DW_32BIT
> diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
> index df6f32850e..06b0fd491c 100644
> --- a/drivers/mmc/sunxi_mmc.c
> +++ b/drivers/mmc/sunxi_mmc.c
> @@ -167,8 +167,12 @@ static int mmc_set_mod_clk(struct sunxi_mmc_priv *priv, unsigned int hz)
>  
>  	if (new_mode) {
>  #ifdef CONFIG_MMC_SUNXI_HAS_NEW_MODE
> +#ifdef CONFIG_MACH_SUN50I
> +		val = 0;
> +#else
>  		val = CCM_MMC_CTRL_MODE_SEL_NEW;
>  		setbits_le32(&priv->reg->ntsr, SUNXI_MMC_NTSR_MODE_SEL_NEW);
> +#endif

Maybe we just can have #ifdef CONFIG_MMC_SUNXI_HAS_NEW_MODE && !CONFIG_MACH_SUN50I ?

Thanks!
maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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