[PATCH v3 1/5] riscv: dts: starfive: add common board dtsi for Milk-V Mars CM variants

E Shattow
2025-09-05T14:41:43Z

Add a common board dtsi for use by Milk-V Mars CM and Milk-V Mars CM Lite.

Signed-off-by: E Shattow <e@freeshell.de>
---
.../dts/starfive/jh7110-milkv-marscm.dtsi | 159 ++++++++++++++++++
1 file changed, 159 insertions(+)
create mode 100644 arch/riscv/boot/dts/starfive/jh7110-milkv-marscm.dtsi

diff --git a/arch/riscv/boot/dts/starfive/jh7110-milkv-marscm.dtsi b/arch/riscv/boot/dts/starfive/jh7110-milkv-marscm.dtsi
new file mode 100644
index 000000000000..25b70af564ee
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/jh7110-milkv-marscm.dtsi
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2025 E Shattow <e@freeshell.de>
+ */
+
+/dts-v1/;
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "jh7110-common.dtsi"
+
+/ {
+ aliases {
+ i2c1 = &i2c1;
+ i2c3 = &i2c3;
+ i2c4 = &i2c4;
+ serial3 = &uart3;
+ };
+
+ sdio_pwrseq: sdio-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&sysgpio 33 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&gmac0 {
+ assigned-clocks = <&aoncrg JH7110_AONCLK_GMAC0_TX>;
+ assigned-clock-parents = <&aoncrg JH7110_AONCLK_GMAC0_RMII_RTX>;
+ starfive,tx-use-rgmii-clk;
+ status = "okay";
+};
+
+&i2c0 {
+ status = "okay";
+};
+
+&i2c2 {
+ status = "disabled";
+};
+
+&i2c6 {
+ status = "disabled";
+};
+
+&mmc1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mmc-pwrseq = <&sdio_pwrseq>;
+ non-removable;
+ status = "okay";
+
+ ap6256: wifi@1 {
+ compatible = "brcm,bcm43456-fmac", "brcm,bcm4329-fmac";
+ reg = <1>;
+ interrupt-parent = <&sysgpio>;
+ interrupts = <34 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "host-wake";
+ pinctrl-0 = <&wifi_host_wake_irq>;
+ pinctrl-names = "default";
+ };
+};
+
+&pcie0 {
+ status = "okay";
+};
+
+&phy0 {
+ rx-internal-delay-ps = <1500>;
+ tx-internal-delay-ps = <1500>;
+ motorcomm,rx-clk-drv-microamp = <3970>;
+ motorcomm,rx-data-drv-microamp = <2910>;
+ motorcomm,tx-clk-10-inverted;
+ motorcomm,tx-clk-100-inverted;
+ motorcomm,tx-clk-1000-inverted;
+ motorcomm,tx-clk-adj-enabled;
+};
+
+&pwm {
+ status = "okay";
+};
+
+&spi0 {
+ status = "okay";
+};
+
+&sysgpio {
+ uart1_pins: uart1-0 {
+ tx-pins {
+ pinmux = <GPIOMUX(16, GPOUT_SYS_UART1_TX,
+ GPOEN_ENABLE,
+ GPI_NONE)>;
+ bias-disable;
+ drive-strength = <12>;
+ input-disable;
+ input-schmitt-disable;
+ };
+
+ rx-pins {
+ pinmux = <GPIOMUX(17, GPOUT_LOW,
+ GPOEN_DISABLE,
+ GPI_SYS_UART1_RX)>;
+ bias-pull-up;
+ input-enable;
+ input-schmitt-enable;
+ };
+
+ cts-pins {
+ pinmux = <GPIOMUX(3, GPOUT_LOW,
+ GPOEN_DISABLE,
+ GPI_SYS_UART1_CTS)>;
+ bias-disable;
+ input-enable;
+ input-schmitt-enable;
+ };
+
+ rts-pins {
+ pinmux = <GPIOMUX(2, GPOUT_SYS_UART1_RTS,
+ GPOEN_ENABLE,
+ GPI_NONE)>;
+ bias-disable;
+ input-disable;
+ input-schmitt-disable;
+ };
+ };
+
+ usb0_pins: usb0-0 {
+ vbus-pins {
+ pinmux = <GPIOMUX(25, GPOUT_SYS_USB_DRIVE_VBUS,
+ GPOEN_ENABLE,
+ GPI_NONE)>;
+ bias-disable;
+ input-disable;
+ input-schmitt-disable;
+ slew-rate = <0>;
+ };
+ };
+
+ wifi_host_wake_irq: wifi-host-wake-irq-0 {
+ wake-pins {
+ pinmux = <GPIOMUX(34, GPOUT_LOW,
+ GPOEN_DISABLE,
+ GPI_NONE)>;
+ input-enable;
+ };
+ };
+};
+
+&uart1 {
+ uart-has-rtscts;
+ pinctrl-0 = <&uart1_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&usb0 {
+ dr_mode = "host";
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb0_pins>;
+ status = "okay";
+};
--
2.50.0