Commit d7252a07 authored Oct 14, 2024 by Emil Renner Berthing Committed by Drew Fustini Oct 15, 2024

riscv: dts: thead: Add TH1520 pinctrl settings for UART0



Add pinctrl settings for UART0 used as the default debug console on
both the Lichee Pi 4A and BeagleV Ahead boards.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Signed-off-by: Drew Fustini <dfustini@tenstorrent.com>

parent 3893d1bf

arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts

+26 −0

Original line number	Diff line number	Diff line
		@@ -61,6 +61,30 @@ &emmc {
		status = "okay";
		};

		&padctrl0_apsys {
		uart0_pins: uart0-0 {
		tx-pins {
		pins = "UART0_TXD";
		function = "uart";
		bias-disable;
		drive-strength = <3>;
		input-disable;
		input-schmitt-disable;
		slew-rate = <0>;
		};

		rx-pins {
		pins = "UART0_RXD";
		function = "uart";
		bias-pull-up;
		drive-strength = <1>;
		input-enable;
		input-schmitt-enable;
		slew-rate = <0>;
		};
		};
		};

		&sdio0 {
		bus-width = <4>;
		max-frequency = <198000000>;
		@@ -68,6 +92,8 @@ &sdio0 {
		};

		&uart0 {
		pinctrl-names = "default";
		pinctrl-0 = <&uart0_pins>;
		status = "okay";
		};

arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts

+26 −0

Original line number	Diff line number	Diff line
		@@ -30,7 +30,33 @@ chosen {
		};
		};

		&padctrl0_apsys {
		uart0_pins: uart0-0 {
		tx-pins {
		pins = "UART0_TXD";
		function = "uart";
		bias-disable;
		drive-strength = <3>;
		input-disable;
		input-schmitt-disable;
		slew-rate = <0>;
		};

		rx-pins {
		pins = "UART0_RXD";
		function = "uart";
		bias-disable;
		drive-strength = <1>;
		input-enable;
		input-schmitt-enable;
		slew-rate = <0>;
		};
		};
		};

		&uart0 {
		pinctrl-names = "default";
		pinctrl-0 = <&uart0_pins>;
		status = "okay";
		};