From: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Date: Mon, 14 Oct 2024 17:54:22 +0000 (-0700)
Subject: riscv: dts: thead: Add TH1520 pinctrl settings for UART0
X-Git-Tag: v6.13-rc1~140^2~39^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d7252a0731ac6dd515e04e1f72e9247d6ded3492;p=thirdparty%2Fkernel%2Flinux.git

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>
---

diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
index 1a4154a6ff3bf..0484fb390be4e 100644
--- a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
+++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
@@ -61,6 +61,30 @@
 	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 @@
 };
 
 &uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
 	status = "okay";
 };
 
diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
index 58ad381fc1c36..f60b1879192da 100644
--- a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
+++ b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
@@ -30,7 +30,33 @@
 	};
 };
 
+&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";
 };