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ARM: dts: stm32: add uart nodes and uart aliases on stm32mp135f-dk

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Update device-tree stm32mp135f-dk.dts to add usart1, uart8, usart2
and uart aliases.

- Usart2 is used to interface a BT device, enable it by default.
- Usart1 and uart8 are available on expansion connector.
  They are kept disabled. So, the pins are kept in analog state to
  lower power consumption by default or can be used as GPIO.
- Uart4 is used for console.

Signed-off-by: Valentin Caron <valentin.caron@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
This commit is contained in:
Valentin Caron
2023-03-28 17:37:23 +02:00
committed by Alexandre Torgue
parent 8d696053f3
commit 623ac593a3
1 changed files with 41 additions and 1 deletions
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42
arch/arm/boot/dts/stm32mp135f-dk.dts
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@@ -19,6 +19,13 @@
aliases {
serial0 = &uart4;
serial1 = &usart1;
serial2 = &uart8;
serial3 = &usart2;
};
chosen {
stdout-path = "serial0:115200n8";
};
memory@c0000000 {
@@ -267,8 +274,41 @@
};
&uart4 {
pinctrl-names = "default";
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&uart4_pins_a>;
pinctrl-1 = <&uart4_sleep_pins_a>;
pinctrl-2 = <&uart4_idle_pins_a>;
/delete-property/dmas;
/delete-property/dma-names;
status = "okay";
};
&uart8 {
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&uart8_pins_a>;
pinctrl-1 = <&uart8_sleep_pins_a>;
pinctrl-2 = <&uart8_idle_pins_a>;
/delete-property/dmas;
/delete-property/dma-names;
status = "disabled";
};
&usart1 {
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&usart1_pins_a>;
pinctrl-1 = <&usart1_sleep_pins_a>;
pinctrl-2 = <&usart1_idle_pins_a>;
uart-has-rtscts;
status = "disabled";
};
/* Bluetooth */
&usart2 {
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&usart2_pins_a>;
pinctrl-1 = <&usart2_sleep_pins_a>;
pinctrl-2 = <&usart2_idle_pins_a>;
uart-has-rtscts;
status = "okay";
};