dts: add stm32h7 can binding and node

* Add can peripheral to stm32h7.dtsi.
* Add binding for m_can stm32h7 driver.

Signed-off-by: Jeremy Wood <[email protected]>

Author: JeremyBCD

dts/arm/st/h7/stm32h7.dtsi

@@ -441,6 +441,35 @@
 			label = "SPI_6";
 		};
 
+		can {
+			compatible = "bosch,m-can-base";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			std-filter-elements = <28>;
+			ext-filter-elements = <8>;
+			rx-fifo0-elements = <3>;
+			rx-fifo1-elements = <3>;
+			rx-buffer-elements = <3>;
+			tx-buffer-elements = <3>;
+
+			can1: can@4000a000 {
+				compatible = "st,stm32h7-fdcan";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x4000a000 0x400>, <0x4000ac00 0x350>;
+				reg-names = "m_can", "message_ram";
+				clocks = <&rcc STM32_CLOCK_BUS_APB1_2 0x00000100>;
+				interrupts = <19 0>, <21 0>, <63 0>;
+				interrupt-names = "LINE_0", "LINE_1", "CALIB";
+				status = "disabled";
+				label = "CAN_1";
+				sjw = <1>;
+				sample-point = <875>;
+				sjw-data = <1>;
+				sample-point-data = <875>;
+			};
+		};
+
 		timers1: timers@40010000 {
 			compatible = "st,stm32-timers";
 			reg = <0x40010000 0x400>;

dts/bindings/can/st,stm32h7-fdcan.yaml

@@ -0,0 +1,9 @@
+description: Bosch m_can CAN-FD controller for STM32H7 series
+
+compatible: "st,stm32h7-fdcan"
+
+include: ["bosch,m-can.yaml", "pinctrl-device.yaml"]
+
+properties:
+    clocks:
+      required: true