2018-04-20 09:07:52

by Pierre-Yves MORDRET

Subject: [PATCH v1 0/2] Add I2C support for STM32H743

Add I2C support on STM32H743 SoC.
Activate I2C1 on STM32H743I Evaluation Board.
---
Version history:
v1:
* Initial
---

Pierre-Yves MORDRET (2):
ARM: dts: stm32: Add I2C support for STM32H743 SoC
ARM: dts: stm32: Add I2C1 support for STM32H743I-EVAL Board

arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 10 +++++++
arch/arm/boot/dts/stm32h743.dtsi | 48 ++++++++++++++++++++++++++++++++
arch/arm/boot/dts/stm32h743i-eval.dts | 8 ++++++
3 files changed, 66 insertions(+)

--
2.7.4

2018-04-20 09:07:17

by Pierre-Yves MORDRET

Subject: [PATCH v1 2/2] ARM: dts: stm32: Add I2C1 support for STM32H743I-EVAL Board

Add I2C1 support for STM32H743I-EVAL Board

Signed-off-by: Pierre-Yves MORDRET <[email protected]>
---
Version history:
v1:
* Initial
---
---
arch/arm/boot/dts/stm32h743i-eval.dts | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/stm32h743i-eval.dts b/arch/arm/boot/dts/stm32h743i-eval.dts
index c7187e1..3f8e0c4 100644
--- a/arch/arm/boot/dts/stm32h743i-eval.dts
+++ b/arch/arm/boot/dts/stm32h743i-eval.dts
@@ -92,6 +92,14 @@
clock-frequency = <25000000>;
};

+&i2c1 {
+ pinctrl-0 = <&i2c1_pins_a>;
+ pinctrl-names = "default";
+ i2c-scl-rising-time-ns = <185>;
+ i2c-scl-falling-time-ns = <20>;
+ status = "okay";
+};
+
&rtc {
status = "okay";
};
--
2.7.4

2018-04-20 09:07:27

by Pierre-Yves MORDRET

Subject: [PATCH v1 1/2] ARM: dts: stm32: Add I2C support for STM32H743 SoC

Add I2C support for STM32H743 SoC

Signed-off-by: Pierre-Yves MORDRET <[email protected]>
---
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

2018-05-03 15:40:24

by Alexandre Torgue

Subject: Re: [PATCH v1 0/2] Add I2C support for STM32H743

Hi,

On 04/20/2018 11:05 AM, Pierre-Yves MORDRET wrote:
> Add I2C support on STM32H743 SoC.
> Activate I2C1 on STM32H743I Evaluation Board.
> ---
> Version history:
> v1:
> * Initial
> ---
>
> Pierre-Yves MORDRET (2):
> ARM: dts: stm32: Add I2C support for STM32H743 SoC
> ARM: dts: stm32: Add I2C1 support for STM32H743I-EVAL Board
>
> arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 10 +++++++
> arch/arm/boot/dts/stm32h743.dtsi | 48 ++++++++++++++++++++++++++++++++
> arch/arm/boot/dts/stm32h743i-eval.dts | 8 ++++++
> 3 files changed, 66 insertions(+)
>

Series applied on stm32-next.

Regards
Alex