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Message-ID: <20251229061318.16756-3-jiayu.riscv@isrc.iscas.ac.cn>
Date: Mon, 29 Dec 2025 14:13:18 +0800
From: Jiayu Du <jiayu.riscv@...c.iscas.ac.cn>
To: conor@...nel.org
Cc: robh@...nel.org,
krzk+dt@...nel.org,
pjw@...nel.org,
palmer@...belt.com,
aou@...s.berkeley.edu,
devicetree@...r.kernel.org,
linux-riscv@...ts.infradead.org,
linux-kernel@...r.kernel.org,
alex@...ti.fr,
jiayu.riscv@...c.iscas.ac.cn,
cyy@...self.name,
kingxukai@...omail.com,
TroyMitchell988@...il.com,
gaohan@...as.ac.cn,
me@...ao.cc
Subject: [PATCH 2/2] riscv: dts: canaan: Add initial dshanpi board DT files
Add board devicetree for 100ask K230 dashanpi, and also the SoM
device utilized by the board. UART0 is enabled as the default
console.
Signed-off-by: Jiayu Du <jiayu.riscv@...c.iscas.ac.cn>
---
arch/riscv/boot/dts/canaan/Makefile | 1 +
.../boot/dts/canaan/k230-canmv-dshanpi.dts | 82 +++++++++++++++++++
.../dts/canaan/k230-canmv-module-dshanpi.dtsi | 30 +++++++
3 files changed, 113 insertions(+)
create mode 100644 arch/riscv/boot/dts/canaan/k230-canmv-dshanpi.dts
create mode 100644 arch/riscv/boot/dts/canaan/k230-canmv-module-dshanpi.dtsi
diff --git a/arch/riscv/boot/dts/canaan/Makefile b/arch/riscv/boot/dts/canaan/Makefile
index 7d54ea5c6f3d..89cb64bde440 100644
--- a/arch/riscv/boot/dts/canaan/Makefile
+++ b/arch/riscv/boot/dts/canaan/Makefile
@@ -2,6 +2,7 @@
dtb-$(CONFIG_ARCH_CANAAN) += canaan_kd233.dtb
dtb-$(CONFIG_ARCH_CANAAN) += k210_generic.dtb
dtb-$(CONFIG_ARCH_CANAAN) += k230-canmv.dtb
+dtb-$(CONFIG_ARCH_CANAAN) += k230-canmv-dshanpi.dtb
dtb-$(CONFIG_ARCH_CANAAN) += k230-evb.dtb
dtb-$(CONFIG_ARCH_CANAAN) += sipeed_maix_bit.dtb
dtb-$(CONFIG_ARCH_CANAAN) += sipeed_maix_dock.dtb
diff --git a/arch/riscv/boot/dts/canaan/k230-canmv-dshanpi.dts b/arch/riscv/boot/dts/canaan/k230-canmv-dshanpi.dts
new file mode 100644
index 000000000000..4f95b534ee87
--- /dev/null
+++ b/arch/riscv/boot/dts/canaan/k230-canmv-dshanpi.dts
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2025 Jiayu Du <jiayu.riscv@...c.iscas.ac.cn>
+ */
+
+/dts-v1/;
+
+#include "k230-canmv-module-dshanpi.dtsi"
+
+/ {
+ model = "100ask CanMV-K230-dshanpi";
+ compatible = "100ask,canmv-k230-dshanpi",
+ "100ask,canmv-k230-module-dshanpi",
+ "canaan,kendryte-k230";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ vdd_5v: regulator-vdd-5v {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_5v";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vdd_3v3: regulator-vdd-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vdd_5v>;
+ };
+
+ vdd_1v8: regulator-vdd-1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vdd_5v>;
+ };
+};
+
+&pinctrl {
+ uart0_pins: uart0-pins {
+ uart0-txd-cfg {
+ pinmux = <K230_PINMUX(38, 1)>;
+ slew-rate = <0>;
+ drive-strength = <7>;
+ power-source = <K230_MSC_1V8>;
+ output-enable;
+ bias-disable;
+ input-schmitt-enable;
+ };
+
+ uart0-rxd-cfg {
+ pinmux = <K230_PINMUX(39, 1)>;
+ slew-rate = <0>;
+ drive-strength = <7>;
+ power-source = <K230_MSC_1V8>;
+ input-enable;
+ bias-disable;
+ input-schmitt-enable;
+ };
+ };
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins>;
+ status = "okay";
+};
diff --git a/arch/riscv/boot/dts/canaan/k230-canmv-module-dshanpi.dtsi b/arch/riscv/boot/dts/canaan/k230-canmv-module-dshanpi.dtsi
new file mode 100644
index 000000000000..ed0abc68f321
--- /dev/null
+++ b/arch/riscv/boot/dts/canaan/k230-canmv-module-dshanpi.dtsi
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2025 Jiayu Du <jiayu.riscv@...c.iscas.ac.cn>
+ */
+
+/dts-v1/;
+
+#include "k230.dtsi"
+
+/ {
+ model = "100ask CanMV-K230-Module-dshanpi";
+ compatible = "100ask,canmv-k230-module-dshanpi",
+ "canaan,kendryte-k230";
+
+ ddr: memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x40000000>;
+ };
+
+ timerx_pulse_in: clock-50m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ };
+};
+
+&sysclk {
+ clocks = <&osc24m>, <&timerx_pulse_in>;
+ clock-names = "osc24m", "timer-pulse-in";
+};
--
2.52.0
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