ARM: vf-colibri: add SPI support and enable MCP2515 CAN

MCP2515 CAN controller is available on Colibri Evaluation board.
Hence enable MCP2515 CAN.

Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi b/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
index 36cafbf..606753e 100644 (file)
--- a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
+++ b/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
@@ -12,6 +12,12 @@
                bootargs = "console=ttyLP0,115200";
        };
 
+       clk16m: clk16m {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <16000000>;
+       };
+
        regulators {
                compatible = "simple-bus";
                #address-cells = <1>;
@@ -47,6 +53,21 @@
        status  = "okay";
 };
 
+&dspi1 {
+       status = "okay";
+
+       mcp2515can: can@0 {
+               compatible = "microchip,mcp2515";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_can_int>;
+               reg = <0>;
+               clocks = <&clk16m>;
+               spi-max-frequency = <10000000>;
+               interrupt-parent = <&gpio1>;
+               interrupts = <11 GPIO_ACTIVE_LOW>;
+       };
+};
+
 &esdhc1 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_esdhc1>;
@@ -94,3 +115,13 @@
 &usbh1 {
        vbus-supply = <&usbh_vbus_reg>;
 };
+
+&iomuxc {
+       vf610-colibri {
+               pinctrl_can_int: can_int {
+                       fsl,pins = <
+                               VF610_PAD_PTB21__GPIO_43        0x22ed
+                       >;
+               };
+       };
+};

diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi
index 5c2b732..fbef082 100644 (file)
--- a/arch/arm/boot/dts/vf-colibri.dtsi
+++ b/arch/arm/boot/dts/vf-colibri.dtsi
@@ -23,6 +23,12 @@
        status = "okay";
 };
 
+&dspi1 {
+       bus-num = <1>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_dspi1>;
+};
+
 &edma0 {
        status = "okay";
 };
@@ -107,6 +113,15 @@
                        >;
                };
 
+               pinctrl_dspi1: dspi1grp {
+                       fsl,pins = <
+                               VF610_PAD_PTD5__DSPI1_CS0               0x33e2
+                               VF610_PAD_PTD6__DSPI1_SIN               0x33e1
+                               VF610_PAD_PTD7__DSPI1_SOUT              0x33e2
+                               VF610_PAD_PTD8__DSPI1_SCK               0x33e2
+                       >;
+               };
+
                pinctrl_esdhc1: esdhc1grp {
                        fsl,pins = <
                                VF610_PAD_PTA24__ESDHC1_CLK     0x31ef