Enable the two i2c busses i2c1 and i2c5 available on the
stm32mp135f-dk Discovery board.
Signed-off-by: Alain Volmat <alain.volmat@xxxxxxxxxxx>
---
arch/arm/boot/dts/stm32mp13-pinctrl.dtsi | 34 ++++++++++++++++++++++++
arch/arm/boot/dts/stm32mp135f-dk.dts | 26 ++++++++++++++++++
2 files changed, 60 insertions(+)
diff --git a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
index d2472cd8f1d0..749078ba9d42 100644
--- a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
@@ -6,6 +6,40 @@
#include <dt-bindings/pinctrl/stm32-pinfunc.h>
&pinctrl {
+ i2c1_pins_a: i2c1-0 {
+ pins {
+ pinmux = <STM32_PINMUX('D', 12, AF5)>, /* I2C1_SCL */
+ <STM32_PINMUX('E', 8, AF5)>; /* I2C1_SDA */
+ bias-disable;
+ drive-open-drain;
+ slew-rate = <0>;
+ };
+ };
+
+ i2c1_sleep_pins_a: i2c1-sleep-0 {
+ pins {
+ pinmux = <STM32_PINMUX('D', 12, ANALOG)>, /* I2C1_SCL */
+ <STM32_PINMUX('E', 8, ANALOG)>; /* I2C1_SDA */
+ };
+ };
+
+ i2c5_pins_a: i2c5-0 {
+ pins {
+ pinmux = <STM32_PINMUX('D', 1, AF4)>, /* I2C5_SCL */
+ <STM32_PINMUX('H', 6, AF4)>; /* I2C5_SDA */
+ bias-disable;
+ drive-open-drain;
+ slew-rate = <0>;
+ };
+ };
+
+ i2c5_sleep_pins_a: i2c5-sleep-0 {
+ pins {
+ pinmux = <STM32_PINMUX('D', 1, ANALOG)>, /* I2C5_SCL */
+ <STM32_PINMUX('H', 6, ANALOG)>; /* I2C5_SDA */
+ };
+ };
+
sdmmc1_b4_pins_a: sdmmc1-b4-0 {
pins {
pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */
diff --git a/arch/arm/boot/dts/stm32mp135f-dk.dts b/arch/arm/boot/dts/stm32mp135f-dk.dts
index e6b8ffd332c7..3e2823332d51 100644
--- a/arch/arm/boot/dts/stm32mp135f-dk.dts
+++ b/arch/arm/boot/dts/stm32mp135f-dk.dts
@@ -68,6 +68,32 @@ vdd_sd: vdd-sd {
};
};
+&i2c1 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&i2c1_pins_a>;
+ pinctrl-1 = <&i2c1_sleep_pins_a>;
+ i2c-scl-rising-time-ns = <96>;
+ i2c-scl-falling-time-ns = <3>;
+ clock-frequency = <1000000>;
+ status = "okay";
+ /* spare dmas for other usage */
+ /delete-property/dmas;
+ /delete-property/dma-names;
+};
+
+&i2c5 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&i2c5_pins_a>;
+ pinctrl-1 = <&i2c5_sleep_pins_a>;
+ i2c-scl-rising-time-ns = <170>;
+ i2c-scl-falling-time-ns = <5>;
+ clock-frequency = <400000>;
+ status = "okay";
+ /* spare dmas for other usage */
+ /delete-property/dmas;
+ /delete-property/dma-names;
+};
+
&iwdg2 {
timeout-sec = <32>;
status = "okay";
--
2.25.1
