[PATCH] riscv: dts: sophgo: Add i2c device support for sg2042

[Inochi Amaoto]

The i2c ip of sg2042 is a standard Synopsys i2c ip, which is already
supported by the mainline kernel.

Add i2c device node for sg2042.

Signed-off-by: Inochi Amaoto <inochiama at outlook.com>
---
 arch/riscv/boot/dts/sophgo/sg2042.dtsi | 54 +++++++++++++++++++++++++-
 1 file changed, 53 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/sophgo/sg2042.dtsi b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
index 34c802bd3f9b..eebd6817520e 100644
--- a/arch/riscv/boot/dts/sophgo/sg2042.dtsi
+++ b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
@@ -44,8 +44,61 @@ soc: soc {
 		compatible = "simple-bus";
 		#address-cells = <2>;
 		#size-cells = <2>;
+		interrupt-parent = <&intc>;
 		ranges;

+		i2c0: i2c at 7030005000 {
+			compatible = "snps,designware-i2c";
+			reg = <0x70 0x30005000 0x0 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_APB_I2C>;
+			clock-names = "ref";
+			clock-frequency = <100000>;
+			interrupts = <101 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_I2C0>;
+			status = "disabled";
+		};
+
+		i2c1: i2c at 7030006000 {
+			compatible = "snps,designware-i2c";
+			reg = <0x70 0x30006000 0x0 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_APB_I2C>;
+			clock-names = "ref";
+			clock-frequency = <100000>;
+			interrupts = <102 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_I2C1>;
+			status = "disabled";
+		};
+
+		i2c2: i2c at 7030007000 {
+			compatible = "snps,designware-i2c";
+			reg = <0x70 0x30007000 0x0 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_APB_I2C>;
+			clock-names = "ref";
+			clock-frequency = <100000>;
+			interrupts = <103 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_I2C2>;
+			status = "disabled";
+		};
+
+		i2c3: i2c at 7030008000 {
+			compatible = "snps,designware-i2c";
+			reg = <0x70 0x30008000 0x0 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_APB_I2C>;
+			clock-names = "ref";
+			clock-frequency = <100000>;
+			interrupts = <104 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_I2C3>;
+			status = "disabled";
+		};
+
 		pllclk: clock-controller at 70300100c0 {
 			compatible = "sophgo,sg2042-pll";
 			reg = <0x70 0x300100c0 0x0 0x40>;
@@ -388,7 +441,6 @@ rstgen: reset-controller at 7030013000 {
 		uart0: serial at 7040000000 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0x00000070 0x40000000 0x00000000 0x00001000>;
-			interrupt-parent = <&intc>;
 			interrupts = <112 IRQ_TYPE_LEVEL_HIGH>;
 			clock-frequency = <500000000>;
 			clocks = <&clkgen GATE_CLK_UART_500M>,
--
2.45.2