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Commit be06210b authored by Gustavo Solaira's avatar Gustavo Solaira
Browse files

ARM: dts: msm: Enable CAN controller for msm8996 CV2X boards 



Add a device tree node for the SPI CAN controller to enable
a CAN network interface for msm8996 CV2X boards.

Change-Id: Ib9c1d63bf86e3b823aa8d762065ed374bdfeaa0e
Signed-off-by: default avatarGustavo Solaira <gustavos@codeaurora.org>
parent 79be912c

arch/arm/boot/dts/qcom/msm8996-cv2x.dtsi

+11 −10
Original line number Diff line number Diff line
@@ -216,11 +216,18 @@ 
&spi_9 {

	status = "okay";



	/* CAN controller */

	spi@0 {

		compatible = "nxp,mpc57xx";

	can-controller@0 {

		compatible = "nxp,mpc5746c";

		reg = <0>;

		spi-max-frequency = <19200000>;

		spi-max-frequency = <9600000>;

		interrupt-parent = <&tlmm>;

		interrupts = <78 0>;

		reset-gpio = <&tlmm 71 GPIO_ACTIVE_LOW>;

		bits-per-word = <8>;

		reset-delay-msec = <100>;

		pinctrl-names = "active", "sleep";

		pinctrl-0 = <&can_rst_on>;

		pinctrl-1 = <&can_rst_off>;

	};

};
@@ -400,12 +407,6 @@ 
	status = "okay";

};



&tlmm {

	/* Set these up as hogs */

	pinctrl-names = "default";

	pinctrl-0 = <&can_reset_gpio>;

};



&pm8994_gpios {

	gpio@c700 { /* GPIO 8 - WLAN_EN */

		qcom,mode = <1>;		/* Digital output*/

arch/arm/boot/dts/qcom/msm8996-pinctrl.dtsi

+24 −9
Original line number Diff line number Diff line
@@ -2745,7 +2745,8 @@ 
				};

		};



		can_reset_gpio: can_reset_gpio {

		can_reset {

			can_rst_on: rst_on {

				mux {

					pins = "gpio71";

					function = "gpio";
@@ -2753,10 +2754,24 @@ 


				config {

					pins = "gpio71";

				drive-strength = <2>;

				output-high;

					drive-strength = <2>; /* 2 mA */

					bias-pull-up;

				};

			};



			can_rst_off: rst_off {

				mux {

					pins = "gpio71";

					function = "gpio";

				};



				config {

					pins = "gpio71";

					drive-strength = <2>; /* 2 mA */

					bias-pull-up;

					output-high;

				};

			};

		};

	};

};