riscv: dts: k1: add pinctrl property in dts.
Add pinctrl node in device tree and update
in bananapi f3 dts.
Signed-off-by: Huan Zhou <me@per1cycle.org>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
diff --git a/arch/riscv/dts/k1-bananapi-f3.dts b/arch/riscv/dts/k1-bananapi-f3.dts
index d2486f7..6b5b83b 100644
--- a/arch/riscv/dts/k1-bananapi-f3.dts
+++ b/arch/riscv/dts/k1-bananapi-f3.dts
@@ -5,6 +5,7 @@
#include "k1.dtsi"
#include "binman.dtsi"
+#include "k1-pinctrl.dtsi"
/ {
model = "Banana Pi BPI-F3";
@@ -21,5 +22,7 @@
};
&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_2_cfg>;
status = "okay";
};
diff --git a/arch/riscv/dts/k1-pinctrl.dtsi b/arch/riscv/dts/k1-pinctrl.dtsi
new file mode 100644
index 0000000..14e7096
--- /dev/null
+++ b/arch/riscv/dts/k1-pinctrl.dtsi
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2022 Spacemit Inc.
+ * Copyright (C) 2025 Yixun Lan <dlan@gentoo.org>
+ */
+
+#define K1_PADCONF(pin, func) (((pin) << 16) | (func))
+
+&pinctrl {
+ uart0_2_cfg: uart0-2-cfg {
+ uart0-2-pins {
+ pinmux = <K1_PADCONF(68, 2)>,
+ <K1_PADCONF(69, 2)>;
+
+ bias-pull-up = <0>;
+ drive-strength = <32>;
+ };
+ };
+};
diff --git a/arch/riscv/dts/k1.dtsi b/arch/riscv/dts/k1.dtsi
index 7c0f1b9..a633e43 100644
--- a/arch/riscv/dts/k1.dtsi
+++ b/arch/riscv/dts/k1.dtsi
@@ -470,5 +470,11 @@
#reset-cells = <1>;
status = "disabled";
};
+
+ pinctrl: pinctrl@d401e000 {
+ compatible = "spacemit,k1-pinctrl", "pinctrl-single";
+ reg = <0x0 0xd401e000 0x0 0x400>;
+ pinctrl-single,register-width = <32>;
+ };
};
-};
\ No newline at end of file
+};