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authorMaxime Coquelin <mcoquelin.stm32@gmail.com>2015-10-14 18:15:04 +0200
committerMaxime Coquelin <mcoquelin.stm32@gmail.com>2016-02-11 12:02:58 +0100
commit521df6f56dac222c4ad46f27148535ebb68ffefe (patch)
tree6a46ad4625b640a52340aaf76f09f38511870645
parentARM: dts: Add pinctrl node to STM32F429 (diff)
downloadlinux-521df6f56dac222c4ad46f27148535ebb68ffefe.tar.xz
linux-521df6f56dac222c4ad46f27148535ebb68ffefe.zip
ARM: dts: Add USART1 pin config to STM32F429 boards
This patch selects USART1 pin configuration on PA9/PA10 pins for both Eval and Disco boards. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
-rw-r--r--arch/arm/boot/dts/stm32429i-eval.dts2
-rw-r--r--arch/arm/boot/dts/stm32f429-disco.dts2
-rw-r--r--arch/arm/boot/dts/stm32f429.dtsi13
3 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/stm32429i-eval.dts b/arch/arm/boot/dts/stm32429i-eval.dts
index 6964fc9e97cf..71fe17adf13a 100644
--- a/arch/arm/boot/dts/stm32429i-eval.dts
+++ b/arch/arm/boot/dts/stm32429i-eval.dts
@@ -71,5 +71,7 @@
};
&usart1 {
+ pinctrl-0 = <&usart1_pins_a>;
+ pinctrl-names = "default";
status = "okay";
};
diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index f0b731db6f53..e3ce796424c3 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -71,5 +71,7 @@
};
&usart1 {
+ pinctrl-0 = <&usart1_pins_a>;
+ pinctrl-names = "default";
status = "okay";
};
diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index 3fed69ce0b9f..aa6c67d99921 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -263,6 +263,19 @@
clocks = <&rcc 0 266>;
st,bank-name = "GPIOK";
};
+
+ usart1_pins_a: usart1@0 {
+ pins1 {
+ pinmux = <STM32F429_PA9_FUNC_USART1_TX>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <0>;
+ };
+ pins2 {
+ pinmux = <STM32F429_PA10_FUNC_USART1_RX>;
+ bias-disable;
+ };
+ };
};
rcc: rcc@40023810 {