[PATCH v1] ARM: dts: nitrogen6x: add CAN support

Shawn Guo
2015-05-21T01:33:52Z

On Wed, May 20, 2015 at 11:49:29PM +0200, Peter Seiderer wrote:
> Regulator stuff copied from imx6qdl-tx6.dtsi, pin configuration
> taken from Boundary Devices linux kernel tree ([1] and [2]).
>
> [1] https://github.com/boundarydevices/linux-imx6/blob/boundary-imx_3.10.17_1.0.2_ga/arch/arm/boot/dts/imx6qdl-nitrogen6x.dts
> [2] https://github.com/boundarydevices/linux-imx6/blob/boundary-imx_3.10.17_1.0.2_ga/arch/arm/boot/dts/imx6qdl.dtsi
>
> Signed-off-by: Peter Seiderer <ps.report@gmx.net>
> ---
> arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi | 32 +++++++++++++++++++++++++++++++
> 1 file changed, 32 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> index fd096dc..1c415e4 100644
> --- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> @@ -54,6 +54,17 @@
> gpio = <&gpio3 22 0>;
> enable-active-high;
> };
> +
> + reg_can_xcvr: regulator at 3 {
> + compatible = "regulator-fixed";
> + reg = <3>;
> + regulator-name = "CAN XCVR";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_can_xcvr>;
> + gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
> + };
> };
>
> gpio-keys {
> @@ -138,6 +149,13 @@
> status = "okay";
> };
>
> +&can1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_can1_1>;
> + xceiver-supply = <&reg_can_xcvr>;
> + status = "okay";
> +};
> +
> &ecspi1 {
> fsl,spi-num-chipselects = <1>;
> cs-gpios = <&gpio3 19 0>;
> @@ -234,6 +252,20 @@
> >;
> };
>
> + pinctrl_can1_1: can1grp-1 {

The '_1' suffix is meaningless.

pinctrl_can1: can1grp {

Shawn

> + fsl,pins = <
> + MX6QDL_PAD_KEY_COL2__FLEXCAN1_TX 0x80000000
> + MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX 0x80000000
> + >;
> + };
> +
> + pinctrl_can_xcvr: can-xcvrgrp {
> + fsl,pins = <
> + /* Flexcan XCVR enable */
> + MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x1b0b0
> + >;
> + };
> +
> pinctrl_ecspi1: ecspi1grp {
> fsl,pins = <
> MX6QDL_PAD_EIM_D17__ECSPI1_MISO 0x100b1
> --
> 2.1.4
>
> --
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