board: nucleo_g0b1re: add CAN support

This commit adds CAN support to the nucleo_g0b1re board.

Signed-off-by: Thomas Stranger <[email protected]>

Author: str4t0m

boards/arm/nucleo_g0b1re/doc/index.rst

@@ -96,6 +96,8 @@ The Zephyr nucleo_g0b1re board configuration supports the following hardware fea
 +-----------+------------+-------------------------------------+
 | SPI       | on-chip    | spi                                 |
 +-----------+------------+-------------------------------------+
+| CAN       | on-chip    | CAN 2.0 and CAN FD compliant        |
++-----------+------------+-------------------------------------+
 | CLOCK     | on-chip    | reset and clock control             |
 +-----------+------------+-------------------------------------+
 | COUNTER   | on-chip    | rtc                                 |
@@ -131,6 +133,7 @@ Default Zephyr Peripheral Mapping:
 - I2C2 SCL/SDA : PA11/PA12
 - SPI1 NSS/SCK/MISO/MOSI : PB0/PA5/PA6/PA7 (Arduino SPI)
 - SPI2 NSS/SCK/MISO/MOSI : PB12/PB13/PB14/PB15
+- CAN1 TX/RX : PA11/PA12
 - USER_PB   : PC13
 - LD4       : PA5
 - PWM       : PA6

boards/arm/nucleo_g0b1re/nucleo_g0b1re.dts

@@ -20,6 +20,7 @@
 		zephyr,sram = &sram0;
 		zephyr,flash = &flash0;
 		zephyr,code-partition = &slot0_partition;
+		zephyr,can-primary = &can1;
 	};
 
 	leds {
@@ -128,6 +129,17 @@
 	pinctrl-0 = <&dac1_out1_pa4>;
 };
 
+&can1 {
+	pinctrl-0 = <&fdcan1_rx_pa11 &fdcan1_tx_pa12>;
+	bus-speed = <125000>;
+	sjw = <1>;
+	sample-point = <875>;
+	bus-speed-data = <1000000>;
+	sjw-data = <1>;
+	sample-point-data = <875>;
+	status = "okay";
+};
+
 &flash0 {
 	partitions {
 		compatible = "fixed-partitions";

boards/arm/nucleo_g0b1re/nucleo_g0b1re.yaml

@@ -18,3 +18,5 @@ supported:
   - spi
   - nvs
   - dma
+  - can
+  - canfd