boards: stm32f469i_disco: Conform to default configuration guidelines

Update stm32f469i_disco configuration to match with
default configuration guidelines:
-Configure available connectors
-Update yaml file

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>

boards/arm/stm32f469i_disco/Kconfig.defconfig

@@ -17,4 +17,28 @@ config UART_STM32_PORT_3
 
 endif # UART_CONSOLE
 
+if SERIAL
+
+config UART_STM32_PORT_6
+	default y
+
+endif # SERIAL
+
+if SPI
+
+config SPI_STM32_INTERRUPT
+	default y
+
+config SPI_2
+	default y
+
+endif # SPI
+
+if I2C
+
+config I2C_1
+	default y
+
+endif # I2C
+
 endif # BOARD_STM32F469I_DISCO

boards/arm/stm32f469i_disco/doc/stm32f469i_disco.rst

@@ -115,10 +115,12 @@ For mode details please refer to `32F469IDISCOVERY board User Manual`_.
 
 Default Zephyr Peripheral Mapping:
 ----------------------------------
-- UART_3_TX : PB10
+- UART_3 TX/RX : PB10/PB11 (ST-Link Virtual Port Com)
-- UART_3_RX : PB11
+- UART_6 TX/RX : PG14/PG9 (Arduino Serial)
-- UART_6_TX : PG14
+- I2C1 SCL/SDA : PB8/PB9 (Arduino I2C)
-- UART_6_RX : PG9
+- SPI2 SCK/MISO/MOSI : PD3/PB14/PB15 (Arduino SPI)
+- USB DM : PA11
+- USB DP : PA12
 - USER_PB : PA0
 - LD1 : PG6
 - LD2 : PD4

boards/arm/stm32f469i_disco/pinmux.c

@@ -22,6 +22,20 @@ static const struct pin_config pinconf[] = {
 	{STM32_PIN_PG14, STM32F4_PINMUX_FUNC_PG14_USART6_TX},
 	{STM32_PIN_PG9, STM32F4_PINMUX_FUNC_PG9_USART6_RX},
 #endif	/* CONFIG_UART_STM32_PORT_6 */
+#ifdef CONFIG_I2C_1
+	{STM32_PIN_PB8, STM32F4_PINMUX_FUNC_PB8_I2C1_SCL},
+	{STM32_PIN_PB9, STM32F4_PINMUX_FUNC_PB9_I2C1_SDA},
+#endif /* CONFIG_I2C_1 */
+#ifdef CONFIG_SPI_2
+	{STM32_PIN_PD3, STM32F4_PINMUX_FUNC_PD3_SPI2_SCK},
+	{STM32_PIN_PB14, STM32F4_PINMUX_FUNC_PB14_SPI2_MISO},
+	{STM32_PIN_PB15, STM32F4_PINMUX_FUNC_PB15_SPI2_MOSI},
+#endif /* CONFIG_SPI_2 */
+#ifdef CONFIG_USB_DC_STM32
+	{STM32_PIN_PA11, STM32F4_PINMUX_FUNC_PA11_OTG_FS_DM},
+	{STM32_PIN_PA12, STM32F4_PINMUX_FUNC_PA12_OTG_FS_DP},
+#endif  /* CONFIG_USB_DC_STM32 */
+
 };
 
 static int pinmux_stm32_init(struct device *port)

boards/arm/stm32f469i_disco/stm32f469i_disco.dts

@@ -51,6 +51,10 @@
 	};
 };
 
+arduino_i2c: &i2c1 {};
+arduino_spi: &spi2 {};
+arduino_serial: &usart6 {};
+
 &usart3 {
 	current-speed = <115200>;
 	pinctrl-0 = <&usart3_pins_a>;
@@ -60,11 +64,23 @@
 
 &usart6 {
 	current-speed = <115200>;
-	pinctrl-0 = <&usart6_pins_a>;
+	pinctrl-0 = <&usart6_pins_b>;
 	pinctrl-names = "default";
 	status = "ok";
 };
 
+&i2c1 {
+	status = "ok";
+};
+
+&spi2 {
+	status = "ok";
+};
+
+&usbotg_fs {
+	status = "ok";
+};
+
 &rtc {
 	status = "ok";
 };

boards/arm/stm32f469i_disco/stm32f469i_disco.yaml

@@ -7,3 +7,7 @@ toolchain:
   - gnuarmemb
 supported:
   - rtc
+  - i2c
+  - spi
+  - gpio
+  - usb_device

drivers/pinmux/stm32/pinmux_stm32f4.h

@@ -247,6 +247,9 @@
 #define STM32F4_PINMUX_FUNC_PD2_UART5_RX    \
 	(STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_NOPULL)
 
+#define STM32F4_PINMUX_FUNC_PD3_SPI2_SCK   \
+	(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_NOPULL)
+
 #define STM32F4_PINMUX_FUNC_PD5_USART2_TX   \
 	(STM32_PINMUX_ALT_FUNC_7 | STM32_PUSHPULL_PULLUP)
 

dts/arm/st/f4/stm32f4-pinctrl.dtsi

@@ -51,6 +51,12 @@
 					tx = <STM32_PIN_PC6 (STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_NOPULL)>;
 				};
 			};
+			usart6_pins_b: usart6_b {
+				rx_tx {
+					rx = <STM32_PIN_PG9 (STM32_PINMUX_ALT_FUNC_8 | STM32_PUPDR_NO_PULL)>;
+					tx = <STM32_PIN_PG14 (STM32_PINMUX_ALT_FUNC_8 | STM32_PUSHPULL_NOPULL)>;
+				};
+			};
 		};
 	};
 };