On 2024/7/26 9:07, Inochi Amaoto wrote:
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@xxxxxxxxxxx>
---
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>;
I would suggest this change (use common interrupt-parent for soc) in
another separated patch and this would looks more clear.
Then this patch is only for i2c related changes.
ranges;
+ i2c0: i2c@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@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@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@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@70300100c0 {
compatible = "sophgo,sg2042-pll";
reg = <0x70 0x300100c0 0x0 0x40>;
@@ -388,7 +441,6 @@ rstgen: reset-controller@7030013000 {
uart0: serial@7040000000 {
compatible = "snps,dw-apb-uart";
reg = <0x00000070 0x40000000 0x00000000 0x00001000>;
- interrupt-parent = <&intc>;
I would prefer this change in a separated patch which has been mentioned
upon.
interrupts = <112 IRQ_TYPE_LEVEL_HIGH>;
clock-frequency = <500000000>;
clocks = <&clkgen GATE_CLK_UART_500M>,
--
2.45.2
