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Date: Tue, 18 Feb 2014 15:22:21 +0100
From: Maxime Ripard <maxime.ripard@...e-electrons.com>
To: David Lanzendörfer <david.lanzendoerfer@....ch>
Cc: devicetree@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>,
Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
Mike Turquette <mturquette@...aro.org>,
Simon Baatz <gmbnomis@...il.com>,
Hans de Goede <hdegoede@...hat.com>,
Emilio López <emilio@...pez.com.ar>,
linux-mmc@...r.kernel.org, Chris Ball <chris@...ntf.net>,
linux-kernel@...r.kernel.org,
H Hartley Sweeten <hsweeten@...ionengravers.com>,
linux-sunxi@...glegroups.com, Tejun Heo <tj@...nel.org>,
Guennadi Liakhovetski <g.liakhovetski@....de>,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v7 5/8] ARM: dts: sun7i: Add support for mmc
On Mon, Feb 17, 2014 at 11:02:41AM +0100, David Lanzendörfer wrote:
> Signed-off-by: David Lanzendörfer <david.lanzendoerfer@....ch>
> Signed-off-by: Hans de Goede <hdegoede@...hat.com>
> ---
> arch/arm/boot/dts/sun7i-a20-cubieboard2.dts | 8 +++
> arch/arm/boot/dts/sun7i-a20-cubietruck.dts | 8 +++
> arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts | 23 +++++++++
> arch/arm/boot/dts/sun7i-a20.dtsi | 61 +++++++++++++++++++++++
> 4 files changed, 100 insertions(+)
>
I'd prefer to have three patches here:
- One that add the controllers
- One that add the pin muxing options
- One that enable the controllers on the various boards.
> diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> index 5c51cb8..ae800b6 100644
> --- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> @@ -34,6 +34,14 @@
> };
> };
>
> + mmc0: mmc@...0f000 {
> + pinctrl-names = "default", "default";
> + pinctrl-0 = <&mmc0_pins_a>;
> + pinctrl-1 = <&mmc0_cd_pin_reference_design>;
This can be made a single pinctrl group, you don't need the pinctrl-1
stuff, it only complicates the node.
> + cd-gpios = <&pio 7 1 0>; /* PH1 */
> + status = "okay";
> + };
> +
> pinctrl@...20800 {
> led_pins_cubieboard2: led_pins@0 {
> allwinner,pins = "PH20", "PH21";
> diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> index f9dcb61..370cef84 100644
> --- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> @@ -19,6 +19,14 @@
> compatible = "cubietech,cubietruck", "allwinner,sun7i-a20";
>
> soc@...00000 {
> + mmc0: mmc@...0f000 {
> + pinctrl-names = "default", "default";
> + pinctrl-0 = <&mmc0_pins_a>;
> + pinctrl-1 = <&mmc0_cd_pin_reference_design>;
> + cd-gpios = <&pio 7 1 0>; /* PH1 */
> + status = "okay";
> + };
> +
> pinctrl@...20800 {
> led_pins_cubietruck: led_pins@0 {
> allwinner,pins = "PH7", "PH11", "PH20", "PH21";
> diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> index ead3013..685ec06 100644
> --- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> @@ -34,7 +34,30 @@
> };
> };
>
> + mmc0: mmc@...0f000 {
> + pinctrl-names = "default", "default";
> + pinctrl-0 = <&mmc0_pins_a>;
> + pinctrl-1 = <&mmc0_cd_pin_reference_design>;
> + cd-gpios = <&pio 7 1 0>; /* PH1 */
> + status = "okay";
> + };
> +
> + mmc3: mmc@...12000 {
> + pinctrl-names = "default", "default";
> + pinctrl-0 = <&mmc3_pins_a>;
> + pinctrl-1 = <&mmc3_cd_pin_olinuxinom>;
> + cd-gpios = <&pio 7 11 0>; /* PH11 */
> + status = "okay";
> + };
> +
> pinctrl@...20800 {
> + mmc3_cd_pin_olinuxinom: mmc3_cd_pin@0 {
> + allwinner,pins = "PH11";
> + allwinner,function = "gpio_in";
> + allwinner,drive = <0>;
> + allwinner,pull = <1>;
> + };
> +
> led_pins_olinuxino: led_pins@0 {
> allwinner,pins = "PH2";
> allwinner,function = "gpio_out";
> diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
> index 9ff0948..5b55414 100644
> --- a/arch/arm/boot/dts/sun7i-a20.dtsi
> +++ b/arch/arm/boot/dts/sun7i-a20.dtsi
> @@ -355,6 +355,46 @@
> #size-cells = <0>;
> };
>
> + mmc0: mmc@...0f000 {
> + compatible = "allwinner,sun5i-a13-mmc";
> + reg = <0x01c0f000 0x1000>;
> + clocks = <&ahb_gates 8>, <&mmc0_clk>;
> + clock-names = "ahb", "mod";
> + interrupts = <0 32 4>;
> + bus-width = <4>;
This belongs to the board, the controller itself is able to handle
several bus width.
> + status = "disabled";
> + };
> +
> + mmc1: mmc@...10000 {
> + compatible = "allwinner,sun5i-a13-mmc";
> + reg = <0x01c10000 0x1000>;
> + clocks = <&ahb_gates 9>, <&mmc1_clk>;
> + clock-names = "ahb", "mod";
> + interrupts = <0 33 4>;
> + bus-width = <4>;
> + status = "disabled";
> + };
> +
> + mmc2: mmc@...11000 {
> + compatible = "allwinner,sun5i-a13-mmc";
> + reg = <0x01c11000 0x1000>;
> + clocks = <&ahb_gates 10>, <&mmc2_clk>;
> + clock-names = "ahb", "mod";
> + interrupts = <0 34 4>;
> + bus-width = <4>;
> + status = "disabled";
> + };
> +
> + mmc3: mmc@...12000 {
> + compatible = "allwinner,sun5i-a13-mmc";
> + reg = <0x01c12000 0x1000>;
> + clocks = <&ahb_gates 11>, <&mmc3_clk>;
> + clock-names = "ahb", "mod";
> + interrupts = <0 35 4>;
> + bus-width = <4>;
> + status = "disabled";
> + };
> +
> pio: pinctrl@...20800 {
> compatible = "allwinner,sun7i-a20-pinctrl";
> reg = <0x01c20800 0x400>;
> @@ -432,6 +472,27 @@
> allwinner,drive = <0>;
> allwinner,pull = <0>;
> };
> +
> + mmc0_pins_a: mmc0@0 {
> + allwinner,pins = "PF0","PF1","PF2","PF3","PF4","PF5";
> + allwinner,function = "mmc0";
> + allwinner,drive = <3>;
> + allwinner,pull = <0>;
> + };
> +
> + mmc0_cd_pin_reference_design: mmc0_cd_pin@0 {
> + allwinner,pins = "PH1";
> + allwinner,function = "gpio_in";
> + allwinner,drive = <0>;
> + allwinner,pull = <1>;
> + };
> +
> + mmc3_pins_a: mmc3@0 {
> + allwinner,pins = "PI4","PI5","PI6","PI7","PI8","PI9";
> + allwinner,function = "mmc3";
> + allwinner,drive = <3>;
> + allwinner,pull = <0>;
> + };
> };
>
> timer@...20c00 {
>
Looks good otherwise.
Thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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