riscv: dts: spacemit: add MusePi Pro board device tree

Add initial device tree support for the MusePi Pro board [1].
The board is using the SpacemiT K1/M1 SoC.

This device tree is adapted from the SpacemiT vendor tree [2] and
enables basic board functionality, including UART console, LED, eMMC,
Ethernet, and PDMA.

Link: https://developer.spacemit.com/documentation?token=YJtdwnvvViPVcmkoPDpcvwfVnrh&type=pdf
Link: https://gitee.com/bianbu-linux/linux-6.6/blob/k1-bl-v2.2.y/arch/riscv/boot/dts/spacemit/k1-x_MUSE-Pi-Pro.dts
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Link: https://lore.kernel.org/r/20251023-k1-musepi-pro-dts-v4-2-01836303e10f@linux.spacemit.com
Signed-off-by: Yixun Lan <dlan@gentoo.org>

diff --git a/arch/riscv/boot/dts/spacemit/Makefile b/arch/riscv/boot/dts/spacemit/Makefile
index 152832644870624d8fd77684ef33addb42b0baf3..942ecb38bea034ef5fbf2cef74e682ee0b6ad8f4 100644 (file)
--- a/arch/riscv/boot/dts/spacemit/Makefile
+++ b/arch/riscv/boot/dts/spacemit/Makefile
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-bananapi-f3.dtb
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-milkv-jupiter.dtb
+dtb-$(CONFIG_ARCH_SPACEMIT) += k1-musepi-pro.dtb
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-orangepi-rv2.dtb

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
new file mode 100644 (file)
index 0000000..29e333b
--- /dev/null
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2024 Yangyu Chen <cyy@cyyself.name>
+ * Copyright (C) 2025 SpacemiT, Inc
+ * Copyright (C) 2025 Troy Mitchell <troy.mitchell@linux.spacemit.com>
+ */
+
+/dts-v1/;
+
+#include "k1.dtsi"
+#include "k1-pinctrl.dtsi"
+
+/ {
+       model = "SpacemiT MusePi Pro";
+       compatible = "spacemit,musepi-pro", "spacemit,k1";
+
+       aliases {
+               ethernet0 = &eth0;
+               serial0 = &uart0;
+       };
+
+       chosen {
+               stdout-path = "serial0";
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led1 {
+                       label = "sys-led";
+                       gpios = <&gpio K1_GPIO(96) GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger = "heartbeat";
+                       default-state = "on";
+               };
+       };
+};
+
+&emmc {
+       bus-width = <8>;
+       mmc-hs400-1_8v;
+       mmc-hs400-enhanced-strobe;
+       non-removable;
+       no-sd;
+       no-sdio;
+       status = "okay";
+};
+
+&eth0 {
+       phy-handle = <&rgmii0>;
+       phy-mode = "rgmii-id";
+       pinctrl-0 = <&gmac0_cfg>;
+       pinctrl-names = "default";
+       rx-internal-delay-ps = <0>;
+       tx-internal-delay-ps = <0>;
+       status = "okay";
+
+       mdio-bus {
+               #address-cells = <0x1>;
+               #size-cells = <0x0>;
+
+               reset-gpios = <&gpio K1_GPIO(110) GPIO_ACTIVE_LOW>;
+               reset-delay-us = <10000>;
+               reset-post-delay-us = <100000>;
+
+               rgmii0: phy@1 {
+                       reg = <0x1>;
+               };
+       };
+};
+
+&pdma {
+       status = "okay";
+};
+
+&uart0 {
+       pinctrl-0 = <&uart0_2_cfg>;
+       pinctrl-names = "default";
+       status = "okay";
+};