[PATCH v3 21/21] riscv: dts: starfive: jhb100: Add pinctrl nodes

[Changhuang Liang <changhuang.liang@starfivetech.com>]

Add pinctrl nodes for starfive JHB100 SoC. They contain
pinctrl_per0/pinctrl_per1/pinctrl_per2/pinctrl_per2pok/pinctrl_per3/
pinctrl_sys0/pinctrl_sys0h/pinctrl_sys1/pinctrl_sys2.

Simultaneously add the pinctrl reference for uart6.

Co-developed-by: Lianfeng Ouyang <lianfeng.ouyang@starfivetech.com>
Signed-off-by: Lianfeng Ouyang <lianfeng.ouyang@starfivetech.com>
Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
---
 arch/riscv/boot/dts/starfive/jhb100-evb1.dts  |   3 +
 .../boot/dts/starfive/jhb100-pinctrl.dtsi     |  23 ++++
 arch/riscv/boot/dts/starfive/jhb100.dtsi      | 110 ++++++++++++++++++
 3 files changed, 136 insertions(+)
 create mode 100644 arch/riscv/boot/dts/starfive/jhb100-pinctrl.dtsi

diff --git a/arch/riscv/boot/dts/starfive/jhb100-evb1.dts b/arch/riscv/boot/dts/starfive/jhb100-evb1.dts
index 462b6fb7953b..8ad2b30a4e0b 100644
--- a/arch/riscv/boot/dts/starfive/jhb100-evb1.dts
+++ b/arch/riscv/boot/dts/starfive/jhb100-evb1.dts
@@ -4,6 +4,7 @@
  */
 
 #include "jhb100.dtsi"
+#include "jhb100-pinctrl.dtsi"
 
 / {
 	model = "StarFive JHB100 EVB-1";
@@ -29,4 +30,6 @@ memory@40000000 {
 
 &uart6 {
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart6_pins>;
 };
diff --git a/arch/riscv/boot/dts/starfive/jhb100-pinctrl.dtsi b/arch/riscv/boot/dts/starfive/jhb100-pinctrl.dtsi
new file mode 100644
index 000000000000..acc357e98548
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/jhb100-pinctrl.dtsi
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (c) 2025-2026 StarFive Technology Co., Ltd.
+ */
+
+#include <dt-bindings/pinctrl/starfive,jhb100-pinctrl.h>
+
+&pinctrl_sys2 {
+	uart6_pins: uart6-grp {
+		uart6-tx-pins {
+			pins = <PADNUM_SYS2_GPIO_A38>;
+			function = "uart";
+			power-source = <JHB100_PINVREF_3_3V>;
+		};
+
+		uart6-rx-pins {
+			pins = <PADNUM_SYS2_GPIO_A39>;
+			function = "uart";
+			input-enable;
+			power-source = <JHB100_PINVREF_3_3V>;
+		};
+	};
+};
diff --git a/arch/riscv/boot/dts/starfive/jhb100.dtsi b/arch/riscv/boot/dts/starfive/jhb100.dtsi
index 943324b3b2fd..f9a7fa9d37e3 100644
--- a/arch/riscv/boot/dts/starfive/jhb100.dtsi
+++ b/arch/riscv/boot/dts/starfive/jhb100.dtsi
@@ -428,6 +428,19 @@ per0crg: clock-controller@11a08000 {
 				#reset-cells = <1>;
 			};
 
+			pinctrl_per0: pinctrl@11a0a000 {
+				compatible = "starfive,jhb100-per0-pinctrl";
+				reg = <0x0 0x11a0a000 0x0 0x1000>;
+				resets = <&per0crg JHB100_PER0RST_GPIO_IOMUX_PRESETN>;
+				interrupts = <60>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				gpio-ranges = <&pinctrl_per0 0 0 0 32>,
+					      <&pinctrl_per0 1 0 32 28>;
+			};
+
 			per1crg: clock-controller@11b40000 {
 				compatible = "starfive,jhb100-per1crg";
 				reg = <0x0 0x11b40000 0x0 0x1000>;
@@ -443,6 +456,19 @@ per1crg: clock-controller@11b40000 {
 				#reset-cells = <1>;
 			};
 
+			pinctrl_per1: pinctrl@11b42000 {
+				compatible = "starfive,jhb100-per1-pinctrl";
+				reg = <0x0 0x11b42000 0x0 0x800>;
+				resets = <&per1crg JHB100_PER1RST_IOMUX_PRESETN>;
+				interrupts = <61>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				gpio-ranges = <&pinctrl_per1 0 0 0 32>,
+					      <&pinctrl_per1 1 0 32 4>;
+			};
+
 			per2crg: clock-controller@11bc0000 {
 				compatible = "starfive,jhb100-per2crg";
 				reg = <0x0 0x11bc0000 0x0 0x1000>;
@@ -464,6 +490,30 @@ per2crg: clock-controller@11bc0000 {
 				#reset-cells = <1>;
 			};
 
+			pinctrl_per2: pinctrl@11bc2000 {
+				compatible = "starfive,jhb100-per2-pinctrl";
+				reg = <0x0 0x11bc2000 0x0 0x400>;
+				resets = <&per2crg JHB100_PER2RST_IOMUX_PRESETN>;
+				interrupts = <62>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				gpio-ranges = <&pinctrl_per2 0 0 0 31>;
+			};
+
+			pinctrl_per2pok: pinctrl@11bc2400 {
+				compatible = "starfive,jhb100-per2pok-pinctrl";
+				reg = <0x0 0x11bc2400 0x0 0x400>;
+				resets = <&per2crg JHB100_PER2RST_POK_IOMUX_PRESETN>;
+				interrupts = <63>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				gpio-ranges = <&pinctrl_per2pok 0 0 0 18>;
+			};
+
 			per3crg: clock-controller@11c40000 {
 				compatible = "starfive,jhb100-per3crg";
 				reg = <0x0 0x11c40000 0x0 0x1000>;
@@ -483,6 +533,18 @@ per3crg: clock-controller@11c40000 {
 				#reset-cells = <1>;
 			};
 
+			pinctrl_per3: pinctrl@11c42000 {
+				compatible = "starfive,jhb100-per3-pinctrl";
+				reg = <0x0 0x11c42000 0x0 0x1000>;
+				resets = <&per3crg JHB100_PER3RST_IOMUX_PRESETN>;
+				interrupts = <64>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				gpio-ranges = <&pinctrl_per3 0 0 0 11>;
+			};
+
 			sys0crg: clock-controller@13000000 {
 				compatible = "starfive,jhb100-sys0crg";
 				reg = <0x0 0x13000000 0x0 0x4000>;
@@ -517,6 +579,54 @@ sys2crg: clock-controller@13008000 {
 				#reset-cells = <1>;
 			};
 
+			pinctrl_sys0: pinctrl@13080000 {
+				compatible = "starfive,jhb100-sys0-pinctrl";
+				reg = <0x0 0x13080000 0x0 0x800>;
+				resets = <&sys0crg JHB100_SYS0RST_SYS0_IOMUX_PRESETN>;
+				interrupts = <56>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				gpio-ranges = <&pinctrl_sys0 0 0 0 4>;
+			};
+
+			pinctrl_sys0h: pinctrl@13080800 {
+				compatible = "starfive,jhb100-sys0h-pinctrl";
+				reg = <0x0 0x13080800 0x0 0x800>;
+				resets = <&sys0crg JHB100_SYS0RST_SYS0H_IOMUX_PRESETN>;
+				interrupts = <57>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				gpio-ranges = <&pinctrl_sys0h 0 0 0 12>;
+			};
+
+			pinctrl_sys1: pinctrl@13081000 {
+				compatible = "starfive,jhb100-sys1-pinctrl";
+				reg = <0x0 0x13081000 0x0 0x1000>;
+				resets = <&sys1crg JHB100_SYS1RST_SYS1_IOMUX_PRESETN>;
+				interrupts = <58>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				gpio-ranges = <&pinctrl_sys1 0 0 0 8>;
+			};
+
+			pinctrl_sys2: pinctrl@13082000 {
+				compatible = "starfive,jhb100-sys2-pinctrl";
+				reg = <0x0 0x13082000 0x0 0x1000>;
+				interrupts = <59>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				gpio-ranges = <&pinctrl_sys2 0 0 0 32>,
+					      <&pinctrl_sys2 1 0 32 5>;
+			};
+
 			intc: interrupt-controller@13220000 {
 				compatible = "starfive,jhb100-intc";
 				reg = <0x0 0x13220000 0x0 0x80>;
-- 
2.25.1