olimexino_stm32: Enable I2C1

Enable I2C1 on olimexino_stm32 Signed-off-by: Yannis Damigos <[email protected]>
mlaz · Jul 25, 2019 · a4d9c3b · a4d9c3b
1 parent 55684e0
commit a4d9c3b
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Showing 4 changed files with 16 additions and 1 deletion.
diff --git a/boards/arm/olimexino_stm32/Kconfig.defconfig b/boards/arm/olimexino_stm32/Kconfig.defconfig
@@ -19,6 +19,9 @@ endif # UART_CONSOLE
 
 if I2C
 
+config I2C_1
+	default y
+
 config I2C_2
 	default y
 

diff --git a/boards/arm/olimexino_stm32/doc/index.rst b/boards/arm/olimexino_stm32/doc/index.rst
@@ -317,8 +317,11 @@ OLIMEXINO-STM32 board has up to 2 SPIs. The default SPI mapping for Zephyr is:
 I2C
 ===
 
-OLIMEXINO-STM32 board has up to 1 I2C. The default I2C mapping for Zephyr is:
+The OLIMEXINO-STM32 board supports two I2C devices. The default I2C mapping for
+Zephyr is:
 
+- I2C1_SCL : PB6
+- I2C1_SDA : PB7
 - I2C2_SCL : PB10
 - I2C2_SDA : PB11
 

diff --git a/boards/arm/olimexino_stm32/olimexino_stm32.dts b/boards/arm/olimexino_stm32/olimexino_stm32.dts
@@ -68,6 +68,11 @@ uext_serial: &usart1 {};
 	pinctrl-names = "default";
 };
 
+&i2c1 {
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_FAST>;
+};
+
 &i2c2 {
 	status = "okay";
 	clock-frequency = <I2C_BITRATE_FAST>;

diff --git a/boards/arm/olimexino_stm32/pinmux.c b/boards/arm/olimexino_stm32/pinmux.c
@@ -26,6 +26,10 @@ static const struct pin_config pinconf[] = {
 	{STM32_PIN_PB10, STM32F1_PINMUX_FUNC_PB10_USART3_TX},
 	{STM32_PIN_PB11, STM32F1_PINMUX_FUNC_PB11_USART3_RX},
 #endif	/* CONFIG_UART_3 */
+#ifdef CONFIG_I2C_1
+	{STM32_PIN_PB6, STM32F1_PINMUX_FUNC_PB6_I2C1_SCL},
+	{STM32_PIN_PB7, STM32F1_PINMUX_FUNC_PB7_I2C1_SDA},
+#endif /* CONFIG_I2C_1 */
 #ifdef CONFIG_I2C_2
 	{STM32_PIN_PB10, STM32F1_PINMUX_FUNC_PB10_I2C2_SCL},
 	{STM32_PIN_PB11, STM32F1_PINMUX_FUNC_PB11_I2C2_SDA},