duos: support spi

build/boards/cv181x/cv1813h_milkv_duos_emmc/dts_riscv/cv1813h_milkv_duos_emmc.dts

@@ -21,6 +21,14 @@
 	status = "okay";
 };
 
+&spi3 {
+	status = "okay";
+
+	spidev@0 {
+		status = "okay";
+	};
+};
+
 &usb {
 	vbus-gpio = <&portb 6 0>;
 };

build/boards/cv181x/cv1813h_milkv_duos_emmc/linux/cvitek_cv1813h_milkv_duos_emmc_defconfig

@@ -135,6 +135,11 @@ CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_MUX=y
 CONFIG_I2C_DESIGNWARE_PLATFORM=y
+CONFIG_SPI=y
+CONFIG_SPI_MASTER=y
+CONFIG_SPI_DESIGNWARE=y
+CONFIG_SPI_DW_MMIO=y
+CONFIG_SPI_SPIDEV=y
 # CONFIG_PTP_1588_CLOCK is not set
 CONFIG_PINCTRL=y
 CONFIG_CVITEK_PINCTRL_CV1835=y

build/boards/cv181x/cv1813h_milkv_duos_sd/dts_riscv/cv1813h_milkv_duos_sd.dts

@@ -21,6 +21,14 @@
 	status = "okay";
 };
 
+&spi3 {
+	status = "okay";
+
+	spidev@0 {
+		status = "okay";
+	};
+};
+
 &usb {
 	vbus-gpio = <&portb 6 0>;
 };

build/boards/cv181x/cv1813h_milkv_duos_sd/linux/cvitek_cv1813h_milkv_duos_sd_defconfig

@@ -135,6 +135,11 @@ CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_MUX=y
 CONFIG_I2C_DESIGNWARE_PLATFORM=y
+CONFIG_SPI=y
+CONFIG_SPI_MASTER=y
+CONFIG_SPI_DESIGNWARE=y
+CONFIG_SPI_DW_MMIO=y
+CONFIG_SPI_SPIDEV=y
 # CONFIG_PTP_1588_CLOCK is not set
 CONFIG_PINCTRL=y
 CONFIG_CVITEK_PINCTRL_CV1835=y

build/boards/cv181x/cv1813h_milkv_duos_sd/u-boot/cvi_board_init.c

@@ -20,6 +20,12 @@ int cvi_board_init(void)
 	//PINMUX_CONFIG(VIVO_D1, IIC4_SCL);
 	//PINMUX_CONFIG(VIVO_D0, IIC4_SDA);
 
+	// SPI3
+	PINMUX_CONFIG(VIVO_D8, SPI3_SDO);
+	PINMUX_CONFIG(VIVO_D7, SPI3_SDI);
+	PINMUX_CONFIG(VIVO_D6, SPI3_SCK);
+	PINMUX_CONFIG(VIVO_D5, SPI3_CS_X);
+
 	// USB
 	PINMUX_CONFIG(USB_VBUS_EN, XGPIOB_5);
 

build/boards/default/dts/cv181x/cv181x_asic_bga.dtsi

@@ -3,6 +3,46 @@
 	mute-gpio-r = <&porta 30 GPIO_ACTIVE_LOW>;
 };
 
+&spi0 {
+	status = "disabled";
+	num-cs = <1>;
+	spidev@0 {
+		compatible = "rohm,dh2228fv";
+		spi-max-frequency = <1000000>;
+		reg = <0>;
+	};
+};
+
+&spi1 {
+	status = "disabled";
+	num-cs = <1>;
+	spidev@0 {
+		compatible = "rohm,dh2228fv";
+		spi-max-frequency = <1000000>;
+		reg = <0>;
+	};
+};
+
+&spi2 {
+	status = "disabled";
+	num-cs = <1>;
+	spidev@0 {
+		compatible = "rohm,dh2228fv";
+		spi-max-frequency = <1000000>;
+		reg = <0>;
+	};
+};
+
+&spi3 {
+	status = "okay";
+	num-cs = <1>;
+	spidev@0 {
+		compatible = "rohm,dh2228fv";
+		spi-max-frequency = <1000000>;
+		reg = <0>;
+	};
+};
+
 &i2c1 {
 	status = "disabled";
 };