Re: [PATCH v5 14/14] ARM: sun7i: dts: Add ahci / sata support

[Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>]

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On Wed, Jan 22, 2014 at 08:04:49PM +0100, Hans de Goede wrote:
> This patch adds sunxi sata support to A20 boards that have such a connector.
> Some boards also feature a regulator via a GPIO and support for this is also
> added.
> 
> Signed-off-by: Olliver Schinagl <oliver-dxLnbx3+1qmEVqv0pETR8A@public.gmane.org>
> Signed-off-by: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
>  arch/arm/boot/dts/sun7i-a20-cubieboard2.dts     |  6 ++++++
>  arch/arm/boot/dts/sun7i-a20-cubietruck.dts      | 20 ++++++++++++++++++++
>  arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts |  6 ++++++
>  arch/arm/boot/dts/sun7i-a20.dtsi                |  8 ++++++++
>  4 files changed, 40 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> index 48777cd..1cab521 100644
> --- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> @@ -13,6 +13,7 @@
>  
>  /dts-v1/;
>  /include/ "sun7i-a20.dtsi"
> +/include/ "sunxi-ahci-reg.dtsi"
>  
>  / {
>  	model = "Cubietech Cubieboard2";
> @@ -28,6 +29,11 @@
>  			status = "okay";
>  		};
>  
> +		ahci: sata@01c18000 {
> +			target-supply = <&reg_ahci_5v>;
> +			status = "okay";
> +		};
> +
>  		pinctrl@01c20800 {
>  			mmc0_cd_pin_cubieboard2: mmc0_cd_pin@0 {
>  				allwinner,pins = "PH1";
> diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> index 2684f27..1247ea1 100644
> --- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> @@ -13,6 +13,7 @@
>  
>  /dts-v1/;
>  /include/ "sun7i-a20.dtsi"
> +/include/ "sunxi-ahci-reg.dtsi"
>  
>  / {
>  	model = "Cubietech Cubietruck";
> @@ -28,6 +29,11 @@
>  			status = "okay";
>  		};
>  
> +		ahci: sata@01c18000 {
> +			target-supply = <&reg_ahci_5v>;
> +			status = "okay";
> +		};
> +
>  		pinctrl@01c20800 {
>  			mmc0_cd_pin_cubietruck: mmc0_cd_pin@0 {
>  				allwinner,pins = "PH1";
> @@ -36,6 +42,13 @@
>  				allwinner,pull = <0>;
>  			};
>  
> +			ahci_pwr_pin_cubietruck: ahci_pwr_pin@1 {
> +				allwinner,pins = "PH12";
> +				allwinner,function = "gpio_out";
> +				allwinner,drive = <0>;
> +				allwinner,pull = <0>;
> +			};
> +
>  			led_pins_cubietruck: led_pins@0 {
>  				allwinner,pins = "PH7", "PH11", "PH20", "PH21";
>  				allwinner,function = "gpio_out";
> @@ -84,4 +97,11 @@
>  			gpios = <&pio 7 7 0>;
>  		};
>  	};
> +
> +	regulators {
> +		reg_ahci_5v: ahci-5v {
> +			pinctrl-0 = <&ahci_pwr_pin_cubietruck>;
> +			gpio = <&pio 7 12 0>;
> +		};
> +	};
>  };
> diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> index bf6f6c8..f135886 100644
> --- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> @@ -13,6 +13,7 @@
>  
>  /dts-v1/;
>  /include/ "sun7i-a20.dtsi"
> +/include/ "sunxi-ahci-reg.dtsi"
>  
>  / {
>  	model = "Olimex A20-Olinuxino Micro";
> @@ -37,6 +38,11 @@
>  			status = "okay";
>  		};
>  
> +		ahci: sata@01c18000 {
> +			target-supply = <&reg_ahci_5v>;
> +			status = "okay";
> +		};
> +
>  		pinctrl@01c20800 {
>  			mmc0_cd_pin_olinuxinom: mmc0_cd_pin@0 {
>  				allwinner,pins = "PH1";
> diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
> index c9c123a..0657bad 100644
> --- a/arch/arm/boot/dts/sun7i-a20.dtsi
> +++ b/arch/arm/boot/dts/sun7i-a20.dtsi
> @@ -347,6 +347,14 @@
>  			status = "disabled";
>  		};
>  
> +		ahci: sata@01c18000 {
> +			compatible = "allwinner,sun4i-a10-ahci";
> +			reg = <0x01c18000 0x1000>;
> +			interrupts = <0 56 1>;

This is supposed to be a level triggered interrupt, not an edge
triggered one.

Thanks for your work!
Maxime

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

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