boards: arm: nucleo_g0b1re: add fdcan2 support

The nucleo_g0b1re board is based on stm32g0 that supports 2 can
controllers. This commit adds support for the second can controller.
Add also can label in yml board file.

Signed-off-by: Adrien MARTIN <adrienmar@kickmaker.net>

boards/arm/nucleo_g0b1re/doc/index.rst

@@ -108,7 +108,7 @@ The Zephyr nucleo_g0b1re board configuration supports the following hardware fea
 +-----------+------------+-------------------------------------+
 | die-temp  | on-chip    | die temperature sensor              |
 +-----------+------------+-------------------------------------+
-| FDCAN1    | on-chip    | CAN controller                      |
+| FDCAN     | on-chip    | CAN controller                      |
 +-----------+------------+-------------------------------------+
 
 Other hardware features are not yet supported in this Zephyr port.
@@ -140,6 +140,7 @@ Default Zephyr Peripheral Mapping:
 - ADC1 IN1  : PA1
 - DAC1_OUT1 : PA4
 - FDCAN1 RX/TX: PA11/PA12
+- FDCAN2 RX/TX: PB0/PB1
 
 For more details please refer to `STM32 Nucleo-64 board User Manual`_.
 

boards/arm/nucleo_g0b1re/nucleo_g0b1re.dts

@@ -187,6 +187,16 @@ zephyr_udc0: &usb {
 	status = "okay";
 };
 
+&fdcan2 {
+	clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00001000>,
+		 <&rcc STM32_SRC_PLL_Q FDCAN_SEL(1)>;
+	pinctrl-0 = <&fdcan2_rx_pb0 &fdcan2_tx_pb1>;
+	pinctrl-names = "default";
+	bus-speed = <125000>;
+	bus-speed-data = <1000000>;
+	status = "okay";
+};
+
 &flash0 {
 	partitions {
 		compatible = "fixed-partitions";

boards/arm/nucleo_g0b1re/nucleo_g0b1re.yaml

@@ -14,6 +14,7 @@ supported:
   - arduino_i2c
   - arduino_spi
   - arduino_serial
+  - can
   - uart
   - gpio
   - i2c