Hi,We are using STM32mp157DAC som with a custom carrier board.
We have built a custom yocto image.
Yocto Version: Mickledore
Machine: stm32mp15-disco
SoM: STM32MP157DAC
Distro: openstlinux-weston
Linux Kernel: 6.1.82-stm32mp-r2-r0
below is my device tree configuration.
aliases {
serial4 = &usart1
};
&usart1 {
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&usart1_pins_a>;
pinctrl-1 = <&usart1_sleep_pins_a>;
pinctrl-2 = <&usart1_idle_pins_a>;
/delete-property/dmas;
/delete-property/dma-names;
status = "okay";
};
usart1_pins_a: usart1-0 {
pins1 {
pinmux = <STM32_PINMUX('Z', 6, AF7)>; /* USART1_Rx */
drive-push-pull;
bias-disable;
};
pins2 {
pinmux = <STM32_PINMUX('Z', 7, AF7)>; /* USART1_TX */
drive-open-drain;
bias-disable;
};
};
usart1_idle_pins_a: usart1-idle-0 {
pins {
pinmux = <STM32_PINMUX('Z', 7, ANALOG)>, /* USART1_TX */
<STM32_PINMUX('Z', 6, ANALOG)>; /* USART1_RX */
};
};
usart1_sle
