arch: arm: soc: stm32l0: add LPUART1 pinmux options

Add obvious and easily testable PA2/PA3 configuration (same pins as USART2). Signed-off-by: Ilya Tagunov <tagunil@gmail.com>
zephyrproject-rtos · May 25, 2018 · 8b7c3cf · 8b7c3cf
1 parent 1e6d827
commit 8b7c3cf
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diff --git a/drivers/pinmux/stm32/pinmux_stm32l0.h b/drivers/pinmux/stm32/pinmux_stm32l0.h
@@ -31,6 +31,11 @@
 #define STM32L0_PINMUX_FUNC_PA15_USART2_RX \
 	(STM32_PINMUX_ALT_FUNC_4 | STM32_PUPDR_NO_PULL)
 
+#define STM32L0_PINMUX_FUNC_PA2_LPUART1_TX \
+	(STM32_PINMUX_ALT_FUNC_6 | STM32_PUSHPULL_NOPULL)
+#define STM32L0_PINMUX_FUNC_PA3_LPUART1_RX \
+	(STM32_PINMUX_ALT_FUNC_6 | STM32_PUPDR_NO_PULL)
+
 #define STM32L0_PINMUX_FUNC_PB8_I2C1_SCL \
 	(STM32_PINMUX_ALT_FUNC_4 | STM32_OPENDRAIN_PULLUP)
 #define STM32L0_PINMUX_FUNC_PB9_I2C1_SDA \

diff --git a/dts/arm/st/stm32l0-pinctrl.dtsi b/dts/arm/st/stm32l0-pinctrl.dtsi
@@ -21,6 +21,12 @@
 					tx = <STM32_PIN_PA2 (STM32_PINMUX_ALT_FUNC_4 | STM32_PUSHPULL_NOPULL)>;
 				};
 			};
+			lpuart1_pins_a: lpuart1@0 {
+				rx_tx {
+					rx = <STM32_PIN_PA3 (STM32_PINMUX_ALT_FUNC_6 | STM32_PUPDR_NO_PULL)>;
+					tx = <STM32_PIN_PA2 (STM32_PINMUX_ALT_FUNC_6 | STM32_PUSHPULL_NOPULL)>;
+				};
+			};
 		};
 	};
 };