[PATCH 2/3] arm64: dts: ti: k3-j7200-som-p0: Add support for CAN instance 0 in main domain

[Bhavya Kapoor]

CAN instance 0 in the main domain is brought on the J7200 SoM through
header J1. Thus, Add transceiver dt node to add support for this CAN
instance.

Also, add the mux dt nodes to route CAN High and Low lines coming
from the SoC to the Common Processor Board.

Signed-off-by: Bhavya Kapoor <b-kapoor at ti.com>
---
 arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi | 35 +++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
index ea47f10d393a..0010600b8176 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
@@ -5,6 +5,8 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
+
 #include "k3-j7200.dtsi"
 
 / {
@@ -80,6 +82,25 @@ rtos_ipc_memory_region: ipc-memories at a4000000 {
 			no-map;
 		};
 	};
+
+	mux0: mux-controller {
+		compatible = "gpio-mux";
+		#mux-state-cells = <1>;
+		mux-gpios = <&exp_som 1 GPIO_ACTIVE_HIGH>;
+	};
+
+	mux1: mux-controller {
+		compatible = "gpio-mux";
+		#mux-state-cells = <1>;
+		mux-gpios = <&exp_som 2 GPIO_ACTIVE_HIGH>;
+	};
+
+	transceiver0: can-phy0 {
+		/* standby pin has been grounded by default */
+		compatible = "ti,tcan1042";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+	};
 };
 
 &wkup_pmx0 {
@@ -142,6 +163,13 @@ J721E_IOPAD(0xd4, PIN_INPUT_PULLUP, 0) /* (V3) I2C0_SCL */
 			J721E_IOPAD(0xd8, PIN_INPUT_PULLUP, 0) /* (W2) I2C0_SDA */
 		>;
 	};
+
+	main_mcan0_pins_default: main-mcan0-default-pins {
+		pinctrl-single,pins = <
+			J721E_IOPAD(0x24, PIN_INPUT, 0) /* (V20) MCAN0_RX */
+			J721E_IOPAD(0x20, PIN_OUTPUT, 0) /* (V18) MCAN0_TX */
+		>;
+	};
 };
 
 &hbmc {
@@ -478,3 +506,10 @@ partition at 3fc0000 {
 		};
 	};
 };
+
+&main_mcan0 {
+	status = "okay";
+	pinctrl-0 = <&main_mcan0_pins_default>;
+	pinctrl-names = "default";
+	phys = <&transceiver0>;
+};
-- 
2.34.1