@@ -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@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@3fc0000 {
};
};
};
+
+&main_mcan0 {
+ status = "okay";
+ pinctrl-0 = <&main_mcan0_pins_default>;
+ pinctrl-names = "default";
+ phys = <&transceiver0>;
+};
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@ti.com> --- arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi | 35 +++++++++++++++++++++ 1 file changed, 35 insertions(+)