linux-kernel - [PATCH] arm64: dts: cix: add DT nodes for all I2C and I3C ports for sky1

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Message-Id: <20250903084713.3221907-1-jun.guo@cixtech.com>
Date: Wed,  3 Sep 2025 16:47:13 +0800
From: Jun Guo <jun.guo@...tech.com>
To: peter.chen@...tech.com,
	fugang.duan@...tech.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: cix-kernel-upstream@...tech.com,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Hongliang Yang <hongliang.yang@...tech.com>,
	Jun Guo <jun.guo@...tech.com>
Subject: [PATCH] arm64: dts: cix: add DT nodes for all I2C and I3C ports for sky1

From: Hongliang Yang <hongliang.yang@...tech.com>

The CIX SKY1 SoC supports the integration of 8 I2C bus controllers and
2 I3C bus controllers.

Signed-off-by: Hongliang Yang <hongliang.yang@...tech.com>
Signed-off-by: Jun Guo <jun.guo@...tech.com>
---
 arch/arm64/boot/dts/cix/sky1.dtsi | 100 ++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)

diff --git a/arch/arm64/boot/dts/cix/sky1.dtsi b/arch/arm64/boot/dts/cix/sky1.dtsi
index 7dfe7677e649..2fb2c99c0796 100644
--- a/arch/arm64/boot/dts/cix/sky1.dtsi
+++ b/arch/arm64/boot/dts/cix/sky1.dtsi
@@ -192,6 +192,78 @@ soc@0 {
 		#address-cells = <2>;
 		#size-cells = <2>;
 
+		i2c0: i2c@...0000 {
+			compatible = "cdns,i2c-r1p14";
+			reg = <0x0 0x04010000 0x0 0x10000>;
+			clock-frequency = <400000>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I2C0_APB>;
+			interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH 0>;
+			status = "disabled";
+		};
+
+		i2c1: i2c@...0000 {
+			compatible = "cdns,i2c-r1p14";
+			reg = <0x0 0x04020000 0x0 0x10000>;
+			clock-frequency = <400000>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I2C1_APB>;
+			interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH 0>;
+			status = "disabled";
+		};
+
+		i2c2: i2c@...0000 {
+			compatible = "cdns,i2c-r1p14";
+			reg = <0x0 0x04030000 0x0 0x10000>;
+			clock-frequency = <400000>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I2C2_APB>;
+			interrupts = <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH 0>;
+			status = "disabled";
+		};
+
+		i2c3: i2c@...0000 {
+			compatible = "cdns,i2c-r1p14";
+			reg = <0x0 0x04040000 0x0 0x10000>;
+			clock-frequency = <400000>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I2C3_APB>;
+			interrupts = <GIC_SPI 289 IRQ_TYPE_LEVEL_HIGH 0>;
+			status = "disabled";
+		};
+
+		i2c4: i2c@...0000 {
+			compatible = "cdns,i2c-r1p14";
+			reg = <0x0 0x04050000 0x0 0x10000>;
+			clock-frequency = <400000>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I2C4_APB>;
+			interrupts = <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH 0>;
+			status = "disabled";
+		};
+
+		i2c5: i2c@...0000 {
+			compatible = "cdns,i2c-r1p14";
+			reg = <0x0 0x04060000 0x0 0x10000>;
+			clock-frequency = <400000>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I2C5_APB>;
+			interrupts = <GIC_SPI 291 IRQ_TYPE_LEVEL_HIGH 0>;
+			status = "disabled";
+		};
+
+		i2c6: i2c@...0000 {
+			compatible = "cdns,i2c-r1p14";
+			reg = <0x0 0x04070000 0x0 0x10000>;
+			clock-frequency = <400000>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I2C6_APB>;
+			interrupts = <GIC_SPI 292 IRQ_TYPE_LEVEL_HIGH 0>;
+			status = "disabled";
+		};
+
+		i2c7: i2c@...0000 {
+			compatible = "cdns,i2c-r1p14";
+			reg = <0x0 0x04080000 0x0 0x10000>;
+			clock-frequency = <400000>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I2C7_APB>;
+			interrupts = <GIC_SPI 293 IRQ_TYPE_LEVEL_HIGH 0>;
+			status = "disabled";
+		};
+
 		uart0: serial@...0000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x0 0x040b0000 0x0 0x1000>;
@@ -228,6 +300,34 @@ uart3: serial@...0000 {
 			status = "disabled";
 		};
 
+		i3c0: i3c@...0000 {
+			compatible = "cdns,i3c-master";
+			reg = <0x0 0x040f0000 0x0 0x10000>;
+			#address-cells = <3>;
+			#size-cells = <0>;
+			interrupts = <GIC_SPI 300 IRQ_TYPE_LEVEL_HIGH 0>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I3C0_APB>,
+				 <&scmi_clk CLK_TREE_FCH_I3C0_FUNC>;
+			clock-names = "pclk", "sysclk";
+			i3c-scl-hz = <400000>;
+			i2c-scl-hz = <100000>;
+			status = "disabled";
+		};
+
+		i3c1: i3c@...0000 {
+			compatible = "cdns,i3c-master";
+			reg = <0x0 0x04100000 0x0 0x10000>;
+			#address-cells = <3>;
+			#size-cells = <0>;
+			interrupts = <GIC_SPI 301 IRQ_TYPE_LEVEL_HIGH 0>;
+			clocks = <&scmi_clk CLK_TREE_FCH_I3C1_APB>,
+				 <&scmi_clk CLK_TREE_FCH_I3C1_FUNC>;
+			clock-names = "pclk", "sysclk";
+			i3c-scl-hz = <400000>;
+			i2c-scl-hz = <100000>;
+			status = "disabled";
+		};
+
 		mbox_ap2se: mailbox@...0000 {
 			compatible = "cix,sky1-mbox";
 			reg = <0x0 0x05060000 0x0 0x10000>;
-- 
2.34.1