linux-kernel - [PATCH 3/3] riscv: dts: canaan: Add mmc nodes for K230

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Message-ID: <20260204082908.27501-4-jiayu.riscv@isrc.iscas.ac.cn>
Date: Wed,  4 Feb 2026 16:29:08 +0800
From: Jiayu Du <jiayu.riscv@...c.iscas.ac.cn>
To: ulf.hansson@...aro.org,
	adrian.hunter@...el.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: pjw@...nel.org,
	palmer@...belt.com,
	aou@...s.berkeley.edu,
	linux-mmc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	gaohan@...as.ac.cn,
	me@...ao.cc,
	Jiayu Du <jiayu.riscv@...c.iscas.ac.cn>
Subject: [PATCH 3/3] riscv: dts: canaan: Add mmc nodes for K230

Add MMC nodes to K230, including eMMC and SDIO. Enable HS200 eMMC
on the SoM and SDIO high-speed on the board.

Signed-off-by: Jiayu Du <jiayu.riscv@...c.iscas.ac.cn>
---
 .../boot/dts/canaan/k230-canmv-dshanpi.dts    | 17 ++++++++++++
 .../dts/canaan/k230-canmv-module-dshanpi.dtsi |  7 +++++
 arch/riscv/boot/dts/canaan/k230.dtsi          | 26 +++++++++++++++++++
 3 files changed, 50 insertions(+)

diff --git a/arch/riscv/boot/dts/canaan/k230-canmv-dshanpi.dts b/arch/riscv/boot/dts/canaan/k230-canmv-dshanpi.dts
index 55197cfc25b4..fdf6524db09b 100644
--- a/arch/riscv/boot/dts/canaan/k230-canmv-dshanpi.dts
+++ b/arch/riscv/boot/dts/canaan/k230-canmv-dshanpi.dts
@@ -15,6 +15,8 @@ / {
 
 	aliases {
 		serial0 = &uart0;
+		mmc0 = &emmc;
+		mmc1 = &sdio;
 	};
 
 	chosen {
@@ -75,6 +77,21 @@ uart0-rxd-cfg {
 	};
 };
 
+&emmc {
+	vmmc-supply = <&vdd_3v3>;
+	vqmmc-supply = <&vdd_1v8>;
+};
+
+&sdio {
+	bus-width = <4>;
+	max-frequency = <50000000>;
+	vmmc-supply = <&vdd_3v3>;
+	vqmmc-supply = <&vdd_3v3>;
+	cap-sd-highspeed;
+	no-1-8-v;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pins>;
diff --git a/arch/riscv/boot/dts/canaan/k230-canmv-module-dshanpi.dtsi b/arch/riscv/boot/dts/canaan/k230-canmv-module-dshanpi.dtsi
index 566665d39239..1db7569253fe 100644
--- a/arch/riscv/boot/dts/canaan/k230-canmv-module-dshanpi.dtsi
+++ b/arch/riscv/boot/dts/canaan/k230-canmv-module-dshanpi.dtsi
@@ -24,3 +24,10 @@ &sysclk {
 	clocks = <&osc24m>, <&timerx_pulse_in>;
 	clock-names = "osc24m", "timer-pulse-in";
 };
+
+&emmc {
+	bus-width = <8>;
+	max-frequency = <200000000>;
+	mmc-hs200-1_8v;
+	status = "okay";
+};
diff --git a/arch/riscv/boot/dts/canaan/k230.dtsi b/arch/riscv/boot/dts/canaan/k230.dtsi
index b369b7d8dc83..296bf448403d 100644
--- a/arch/riscv/boot/dts/canaan/k230.dtsi
+++ b/arch/riscv/boot/dts/canaan/k230.dtsi
@@ -177,6 +177,32 @@ usb1: usb@...40000 {
 			status = "disabled";
 		};
 
+		emmc: mmc@...80000 {
+			compatible = "canaan,k230-emmc";
+			reg = <0x0 0x91580000 0x0 0x1000>;
+			clocks = <&sysclk K230_HS_SD0_AXI_GATE>,
+				 <&sysclk K230_HS_SD0_CARD_GATE>,
+				 <&sysclk K230_HS_SD0_BASE_GATE>,
+				 <&sysclk K230_HS_SD0_TIMER_GATE>,
+				 <&sysclk K230_HS_SD0_AHB_GATE>;
+			clock-names = "bus", "core", "base", "timer", "ahb";
+			interrupts = <142 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		sdio: mmc@...81000 {
+			compatible = "canaan,k230-sdio";
+			reg = <0x0 0x91581000 0x0 0x1000>;
+			clocks = <&sysclk K230_HS_SD1_AXI_GATE>,
+				 <&sysclk K230_HS_SD1_CARD_GATE>,
+				 <&sysclk K230_HS_SD1_BASE_GATE>,
+				 <&sysclk K230_HS_SD1_TIMER_GATE>,
+				 <&sysclk K230_HS_SD1_AHB_GATE>;
+			clock-names = "bus", "core", "base", "timer", "ahb";
+			interrupts = <144 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
 		usbphy: usb-phy@...85000 {
 			compatible = "canaan,k230-usb-phy";
 			reg = <0x0 0x91585000 0x0 0x400>;
-- 
2.52.0