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

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Message-ID:
 <IA1PR20MB49531864C828FE90C4C25D1BBBB42@IA1PR20MB4953.namprd20.prod.outlook.com>
Date: Fri, 26 Jul 2024 09:07:50 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...look.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Guo Ren <guoren@...nel.org>,
	Xiaoguang Xing <xiaoguang.xing@...hgo.com>
Cc: devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] riscv: dts: sophgo: Add i2c device support for sg2042

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@...look.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@...0005000 {
+			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@...0006000 {
+			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@...0007000 {
+			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@...0008000 {
+			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@...00100c0 {
 			compatible = "sophgo,sg2042-pll";
 			reg = <0x70 0x300100c0 0x0 0x40>;
@@ -388,7 +441,6 @@ rstgen: reset-controller@...0013000 {
 		uart0: serial@...0000000 {
 			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