Subject: [PATCH 08/10] ARM: dts: sun9i: Enable mmc0 on A80 Optimus Board

From: [email-masked] (Maxime Ripard)
Date: Sun, 7 Dec 2014 16:02:49 +0100

Hi,

On Wed, Dec 03, 2014 at 02:36:03PM +0800, Chen-Yu Tsai wrote:
> Enable the micro-sd slot on the A80 Optimus Board, which is connected to
> mmc0. This adds the card-detect gpio and enables mmc0.
> 
> This patch also adds a 3V fixed regulator, which is the default I/O
> voltage level.
> 
> Signed-off-by: Chen-Yu Tsai <[email-masked]>
> Signed-off-by: Andreas F?rber <[email-masked]>
> ---
>  arch/arm/boot/dts/sun9i-a80-optimus.dts | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts
> index 506948f..02a4aa7 100644
> --- a/arch/arm/boot/dts/sun9i-a80-optimus.dts
> +++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts
> @@ -59,6 +59,16 @@
>  	};
>  
>  	soc {
> +		mmc0: mmc at 01c0f000 {
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&mmc0_pins>, <&mmc0_cd_pin_optimus>;
> +			vmmc-supply = <&reg_vcc3v0>;
> +			bus-width = <4>;
> +			cd-gpios = <&pio 7 18 0>; /* PH8 */
> +			cd-inverted;
> +			status = "okay";
> +		};
> +
>  		pio: pinctrl at 06000800 {
>  			i2c3_pins_a: i2c3 at 0 {
>  				/* Enable internal pull-up */
> @@ -72,6 +82,13 @@
>  				allwinner,pull = <0>;
>  			};
>  
> +			mmc0_cd_pin_optimus: mmc0_cd_pin at 0 {
> +				allwinner,pins = "PH18";
> +				allwinner,function = "gpio_in";
> +				allwinner,drive = <0>;
> +				allwinner,pull = <1>;
> +			};
> +
>  			uart4_pins_a: uart4 at 0 {
>  				/* Enable internal pull-up */
>  				allwinner,pull = <1>;
> @@ -116,4 +133,11 @@
>  			gpios = <&pio 7 0 0>;
>  		};
>  	};
> +
> +	reg_vcc3v0: vcc3v0 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc3v0";
> +		regulator-min-microvolt = <3000000>;
> +		regulator-max-microvolt = <3000000>;
> +	};

There's already such a regulator in sunxi-common-regulators.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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