[PATCH v3 7/8] riscv: dts: thead: Add TH1520 pinctrl settings for UART0

[Drew Fustini]

From: Emil Renner Berthing <emil.renner.berthing at canonical.com>

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

Tested-by: Thomas Bonnefille <thomas.bonnefille at bootlin.com>
Signed-off-by: Emil Renner Berthing <emil.renner.berthing at canonical.com>
Signed-off-by: Drew Fustini <dfustini at tenstorrent.com>
---
 arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts | 26 ++++++++++++++++++++++
 arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts  | 26 ++++++++++++++++++++++
 2 files changed, 52 insertions(+)

diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
index 69f82e7afd0b..6c0b768e8d17 100644
--- a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
+++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
@@ -71,7 +71,33 @@ &sdio0 {
 	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-disable;
+			drive-strength = <1>;
+			input-enable;
+			input-schmitt-enable;
+			slew-rate = <0>;
+		};
+	};
+};
+
 &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 58ad381fc1c3..f60b1879192d 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 @@ 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";
 };
 

-- 
2.34.1