boards: add gd35q16 flash to gd32f450i_eval and gd32vf103v_eval boards

Add gd25q16 as "jedec,spi-nor" compatible flash to gd32f450i_eval and
gd32vf103v_eval boards.

Signed-off-by: HaiLong Yang <[email protected]>

Author: cameled

boards/arm/gd32f450i_eval/gd32f450i_eval-pinctrl.dtsi

@@ -30,4 +30,13 @@
 			drive-open-drain;
 		};
 	};
+
+	spi5_default: spi5_default {
+		group1 {
+			pinmux = <SPI5_SCK_PG13>, <SPI5_MOSI_PG14>,
+				 <SPI5_MISO_PG12>,
+				 /* Use pinmux to pullup pg10 and pg11. */
+				 <SPI5_IO2_PG10>, <SPI5_IO3_PG11>;
+		};
+	};
 };

boards/arm/gd32f450i_eval/gd32f450i_eval.dts

@@ -89,6 +89,14 @@
 	status = "okay";
 };
 
+&gpioi {
+	status = "okay";
+};
+
+&gpiog {
+	status = "okay";
+};
+
 &usart0 {
 	status = "okay";
 	current-speed = <115200>;
@@ -128,3 +136,20 @@
 		timeout = <5>;
 	};
 };
+
+&spi5 {
+	status = "okay";
+	pinctrl-0 = <&spi5_default>;
+	pinctrl-names = "default";
+	cs-gpios = <&gpioi 8 GPIO_ACTIVE_LOW>;
+
+	nor_flash: gd25q16@0 {
+		compatible ="jedec,spi-nor";
+		size = <0x1000000>;
+		label = "GD25Q16";
+		reg = <0>;
+		spi-max-frequency = <4000000>;
+		status = "okay";
+		jedec-id = [c8 40 15];
+	};
+};

boards/riscv/gd32vf103v_eval/gd32vf103v_eval-pinctrl.dtsi

@@ -23,4 +23,11 @@
 			pinmux = <TIMER0_CH0_PA8_OUT_NORMP>;
 		};
 	};
+
+	spi0_default: spi0_default {
+		group1 {
+			pinmux = <SPI0_SCK_PA5_OUT_NORMP>, <SPI0_MOSI_PA7_OUT_NORMP>,
+				 <SPI0_MISO_PA6_OUT_NORMP>;
+		};
+	};
 };

boards/riscv/gd32vf103v_eval/gd32vf103v_eval.dts

@@ -120,3 +120,20 @@
 		pinctrl-names = "default";
 	};
 };
+
+&spi0 {
+	status = "okay";
+	pinctrl-0 = <&spi0_default>;
+	pinctrl-names = "default";
+	cs-gpios = <&gpioe 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+
+	nor_flash: gd25q16@0 {
+		compatible ="jedec,spi-nor";
+		size = <0x1000000>;
+		label = "GD25Q16";
+		reg = <0>;
+		spi-max-frequency = <4000000>;
+		status = "okay";
+		jedec-id = [c8 40 15];
+	};
+};