Add SPI-NOR controller and flash nodes to device tree for SG2042.

Signed-off-by: Zixian Zeng <sycamoremoon376@gmail.com>
---
 .../riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts | 24 ++++++++++++++++++++++
 arch/riscv/boot/dts/sophgo/sg2042.dtsi             | 24 ++++++++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts b/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
index ef3a602172b1e5bf3dcf54a8cacdad5172b7f50e..554ec14d58453a44a02a82da40a7aedb80d61dc9 100644
--- a/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
+++ b/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
@@ -138,6 +138,30 @@ &sd {
 	status = "okay";
 };
 
+&spifmc0 {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <100000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+	};
+};
+
+&spifmc1 {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <100000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+	};
+};
+
 &uart0 {
 	pinctrl-0 = <&uart0_cfg>;
 	pinctrl-names = "default";
diff --git a/arch/riscv/boot/dts/sophgo/sg2042.dtsi b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
index 85636d1798f11804546ed8606595ace1b4cb2a2f..0e1fcb54480af71147d0e71178a8eb08a31b75c3 100644
--- a/arch/riscv/boot/dts/sophgo/sg2042.dtsi
+++ b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
@@ -48,6 +48,30 @@ soc: soc {
 		interrupt-parent = <&intc>;
 		ranges;
 
+		spifmc0: spi@7000180000 {
+			compatible = "sophgo,sg2042-spifmc-nor", "sophgo,sg2044-spifmc-nor";
+			reg = <0x70 0x00180000 0x0 0x1000000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_AHB_SF>;
+			interrupt-parent = <&intc>;
+			interrupts = <108 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_SF0>;
+			status = "disabled";
+		};
+
+		spifmc1: spi@7002180000 {
+			compatible = "sophgo,sg2042-spifmc-nor", "sophgo,sg2044-spifmc-nor";
+			reg = <0x70 0x02180000 0x0 0x1000000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_AHB_SF>;
+			interrupt-parent = <&intc>;
+			interrupts = <109 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_SF1>;
+			status = "disabled";
+		};
+
 		i2c0: i2c@7030005000 {
 			compatible = "snps,designware-i2c";
 			reg = <0x70 0x30005000 0x0 0x1000>;

-- 
2.49.0

On Sun, Jun 29, 2025 at 04:23:13PM +0800, Zixian Zeng wrote:
> Add SPI-NOR controller and flash nodes to device tree for SG2042.
> 
> Signed-off-by: Zixian Zeng <sycamoremoon376@gmail.com>
> ---
>  .../riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts | 24 ++++++++++++++++++++++
>  arch/riscv/boot/dts/sophgo/sg2042.dtsi             | 24 ++++++++++++++++++++++
>  2 files changed, 48 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts b/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
> index ef3a602172b1e5bf3dcf54a8cacdad5172b7f50e..554ec14d58453a44a02a82da40a7aedb80d61dc9 100644
> --- a/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
> +++ b/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
> @@ -138,6 +138,30 @@ &sd {
>  	status = "okay";
>  };
>  
> +&spifmc0 {
> +	status = "okay";
> +
> +	flash@0 {
> +		compatible = "jedec,spi-nor";
> +		reg = <0>;
> +		spi-max-frequency = <100000000>;
> +		spi-tx-bus-width = <4>;
> +		spi-rx-bus-width = <4>;
> +	};
> +};
> +
> +&spifmc1 {
> +	status = "okay";
> +
> +	flash@0 {
> +		compatible = "jedec,spi-nor";
> +		reg = <0>;
> +		spi-max-frequency = <100000000>;
> +		spi-tx-bus-width = <4>;
> +		spi-rx-bus-width = <4>;
> +	};
> +};
> +
>  &uart0 {
>  	pinctrl-0 = <&uart0_cfg>;
>  	pinctrl-names = "default";
> diff --git a/arch/riscv/boot/dts/sophgo/sg2042.dtsi b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
> index 85636d1798f11804546ed8606595ace1b4cb2a2f..0e1fcb54480af71147d0e71178a8eb08a31b75c3 100644
> --- a/arch/riscv/boot/dts/sophgo/sg2042.dtsi
> +++ b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
> @@ -48,6 +48,30 @@ soc: soc {
>  		interrupt-parent = <&intc>;
>  		ranges;
>  
> +		spifmc0: spi@7000180000 {
> +			compatible = "sophgo,sg2042-spifmc-nor", "sophgo,sg2044-spifmc-nor";

Sorry, This should be compatible = "sophgo,sg2042-spifmc-nor", binding
is changed in this patch series. My git branches are a bit messy, sorry
for taking your time for this issue.
> +			reg = <0x70 0x00180000 0x0 0x1000000>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			clocks = <&clkgen GATE_CLK_AHB_SF>;
> +			interrupt-parent = <&intc>;
> +			interrupts = <108 IRQ_TYPE_LEVEL_HIGH>;
> +			resets = <&rstgen RST_SF0>;
> +			status = "disabled";
> +		};
> +
> +		spifmc1: spi@7002180000 {
> +			compatible = "sophgo,sg2042-spifmc-nor", "sophgo,sg2044-spifmc-nor";

Same as above, sincerely

Best regards,
Zixian
> +			reg = <0x70 0x02180000 0x0 0x1000000>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			clocks = <&clkgen GATE_CLK_AHB_SF>;
> +			interrupt-parent = <&intc>;
> +			interrupts = <109 IRQ_TYPE_LEVEL_HIGH>;
> +			resets = <&rstgen RST_SF1>;
> +			status = "disabled";
> +		};
> +
>  		i2c0: i2c@7030005000 {
>  			compatible = "snps,designware-i2c";
>  			reg = <0x70 0x30005000 0x0 0x1000>;
> 
> -- 
> 2.49.0
>