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ARM: dts: stm32: add usart3 node to stm32mp157c-ev1

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Adds the usart3 node to stm32mp157c-ev1 board. usart3 pins are connected to
GPIO Expansion connector. usart3 is disabled by default.

Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
This commit is contained in:
Erwan Le Ray 2020-06-18 15:06:49 +02:00 committed by Alexandre Torgue
parent ec84790896
commit afc0666d03
1 changed files with 15 additions and 0 deletions
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15
arch/arm/boot/dts/stm32mp157c-ev1.dts
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@ -19,6 +19,7 @@ chosen {
aliases {
serial0 = &uart4;
serial1 = &usart3;
ethernet0 = &ethernet0;
};
@ -341,6 +342,20 @@ timer@11 {
};
};
&usart3 {
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&usart3_pins_b>;
pinctrl-1 = <&usart3_sleep_pins_b>;
pinctrl-2 = <&usart3_idle_pins_b>;
/*
* HW flow control USART3_RTS is optional, and isn't default wired to
* the connector. SB23 needs to be soldered in order to use it, and R77
* (ETH_CLK) should be removed.
*/
uart-has-rtscts;
status = "disabled";
};
&usbh_ehci {
phys = <&usbphyc_port0>;
status = "okay";