Add I2C support for STM32H743 SoC
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@xxxxxx>
---
Version history:
v1:
* Initial
---
---
arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 10 +++++++
arch/arm/boot/dts/stm32h743.dtsi | 48 ++++++++++++++++++++++++++++++++
2 files changed, 58 insertions(+)
diff --git a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
index 0f15dfb..24be8e6 100644
--- a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
@@ -163,6 +163,16 @@
#interrupt-cells = <2>;
};
+ i2c1_pins_a: i2c1@0 {
+ pins {
+ pinmux = <STM32_PINMUX('B', 6, AF4)>, /* I2C1_SCL */
+ <STM32_PINMUX('B', 7, AF4)>; /* I2C1_SDA */
+ bias-disable;
+ drive-open-drain;
+ slew-rate = <0>;
+ };
+ };
+
usart1_pins: usart1@0 {
pins1 {
pinmux = <STM32_PINMUX('B', 14, AF4)>; /* USART1_TX */
diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
index 2bb103e..7b64af0 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -130,6 +130,42 @@
clocks = <&rcc USART2_CK>;
};
+ i2c1: i2c@40005400 {
+ compatible = "st,stm32f7-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x40005400 0x400>;
+ interrupts = <31>,
+ <32>;
+ resets = <&rcc STM32H7_APB1L_RESET(I2C1)>;
+ clocks = <&rcc I2C1_CK>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@40005800 {
+ compatible = "st,stm32f7-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x40005800 0x400>;
+ interrupts = <33>,
+ <34>;
+ resets = <&rcc STM32H7_APB1L_RESET(I2C2)>;
+ clocks = <&rcc I2C2_CK>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@40005C00 {
+ compatible = "st,stm32f7-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x40005C00 0x400>;
+ interrupts = <72>,
+ <73>;
+ resets = <&rcc STM32H7_APB1L_RESET(I2C3)>;
+ clocks = <&rcc I2C3_CK>;
+ status = "disabled";
+ };
+
dac: dac@40007400 {
compatible = "st,stm32h7-dac-core";
reg = <0x40007400 0x400>;
@@ -323,6 +359,18 @@
status = "disabled";
};
+ i2c4: i2c@58001C00 {
+ compatible = "st,stm32f7-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x58001C00 0x400>;
+ interrupts = <95>,
+ <96>;
+ resets = <&rcc STM32H7_APB4_RESET(I2C4)>;
+ clocks = <&rcc I2C4_CK>;
+ status = "disabled";
+ };
+
lptimer2: timer@58002400 {
#address-cells = <1>;
#size-cells = <0>;
--
2.7.4
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