[PATCH v1 20/20] riscv: dts: starfive: jhb100: Add pinctrl nodes

Changhuang Liang
2026-04-24T11:31:41Z

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.

Signed-off-by: Lianfeng Ouyang <lianfeng.ouyang@starfivetech.com>
Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
---
.../boot/dts/starfive/jhb100-evb1-eth.dts | 27 +++++
arch/riscv/boot/dts/starfive/jhb100-evb1.dtsi | 4 +
.../boot/dts/starfive/jhb100-pinctrl.dtsi | 19 ++++
arch/riscv/boot/dts/starfive/jhb100.dtsi | 107 ++++++++++++++++++
4 files changed, 157 insertions(+)
create mode 100644 arch/riscv/boot/dts/starfive/jhb100-pinctrl.dtsi

diff --git a/arch/riscv/boot/dts/starfive/jhb100-evb1-eth.dts b/arch/riscv/boot/dts/starfive/jhb100-evb1-eth.dts
index 62cd046e1224..f7e82f9d0ff1 100644
--- a/arch/riscv/boot/dts/starfive/jhb100-evb1-eth.dts
+++ b/arch/riscv/boot/dts/starfive/jhb100-evb1-eth.dts
@@ -4,3 +4,30 @@
*/

#include "jhb100-evb1.dtsi"
+
+&pinctrl_per0 {
+ gpioe-i3c0-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOB8-11, 32-33 */
+ gpioe-i3c1-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOB12-15, 34-35 */
+ gpioe-i3c2-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOB16-23 */
+ gpioe-i3c4-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOB36-43 */
+};
+
+&pinctrl_per1 {
+ gpioe-spi-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOC0-4 */
+ gpioe-qspi0-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOC5-11 */
+ gpioe-qspi1-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOC12-19 */
+ gpioe-qspi2-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOC20-27 */
+};
+
+&pinctrl_per2 {
+ gpionw-vref = <JHB100_PINVREF_1_8V>; /* VREF for GPIOD19-30 */
+};
+
+&pinctrl_per3 {
+ gpios-vref = <JHB100_PINVREF_1_8V>; /* VREF for GPIOE0-10 */
+};
+
+&pinctrl_sys2 {
+ gpiow-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOA36-39 */
+ gpiow-inner-vref = <JHB100_PINVREF_3_3V>; /* VREF for GPIOA40-43 */
+};
diff --git a/arch/riscv/boot/dts/starfive/jhb100-evb1.dtsi b/arch/riscv/boot/dts/starfive/jhb100-evb1.dtsi
index 462b6fb7953b..acd5949bcfdb 100644
--- a/arch/riscv/boot/dts/starfive/jhb100-evb1.dtsi
+++ b/arch/riscv/boot/dts/starfive/jhb100-evb1.dtsi
@@ -3,7 +3,9 @@
* Copyright (c) 2024-2026 StarFive Technology Co., Ltd.
*/

+#include "jhb100-pinfunc.h"
#include "jhb100.dtsi"
+#include "jhb100-pinctrl.dtsi"

/ {
model = "StarFive JHB100 EVB-1";
@@ -29,4 +31,6 @@ 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..d12b79376521
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/jhb100-pinctrl.dtsi
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (c) 2025-2026 StarFive Technology Co., Ltd.
+ */
+
+&pinctrl_sys2 {
+ uart6_pins: uart6-grp {
+ uart6-tx-pins {
+ pinmux = <PINMUX(PADNUM_SYS2_GPIO_A38,
+ FUNC_SYS2_UART6_TX)>;
+ };
+
+ uart6-rx-pins {
+ pinmux = <PINMUX(PADNUM_SYS2_GPIO_A39,
+ FUNC_SYS2_UART6_RX)>;
+ input-enable;
+ };
+ };
+};
diff --git a/arch/riscv/boot/dts/starfive/jhb100.dtsi b/arch/riscv/boot/dts/starfive/jhb100.dtsi
index 700d00f800bc..74d427d7f2df 100644
--- a/arch/riscv/boot/dts/starfive/jhb100.dtsi
+++ b/arch/riscv/boot/dts/starfive/jhb100.dtsi
@@ -425,6 +425,18 @@ 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 = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_per0 0 0 60>;
+ };
+
per1crg: clock-controller@11b40000 {
compatible = "starfive,jhb100-per1crg";
reg = <0x0 0x11b40000 0x0 0x1000>;
@@ -440,6 +452,18 @@ 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 = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_per1 0 0 36>;
+ };
+
per2crg: clock-controller@11bc0000 {
compatible = "starfive,jhb100-per2crg";
reg = <0x0 0x11bc0000 0x0 0x1000>;
@@ -461,6 +485,30 @@ 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 = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_per2 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 = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_per2pok 0 0 18>;
+ };
+
per3crg: clock-controller@11c40000 {
compatible = "starfive,jhb100-per3crg";
reg = <0x0 0x11c40000 0x0 0x1000>;
@@ -480,6 +528,18 @@ 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 = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_per3 0 0 11>;
+ };
+
sys0crg: clock-controller@13000000 {
compatible = "starfive,jhb100-sys0crg";
reg = <0x0 0x13000000 0x0 0x4000>;
@@ -513,6 +573,53 @@ sys2crg: clock-controller@13008000 {
#clock-cells = <1>;
#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 = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_sys0 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 = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_sys0h 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 = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_sys1 0 0 8>;
+ };
+
+ pinctrl_sys2: pinctrl@13082000 {
+ compatible = "starfive,jhb100-sys2-pinctrl";
+ reg = <0x0 0x13082000 0x0 0x1000>;
+ interrupts = <59>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_sys2 0 0 37>;
+ };
};
};
};
--
2.25.1