boards: microchip: sam: add spi device for sama7g5

Add flexcom11 spi device, mount a sst26vf064 qspi flash on it.

Signed-off-by: CHEN Xing <xing.chen@microchip.com>

Author: MCHP-MPU-Solutions-SHA

boards/microchip/sam/sama7g54_ek/sama7g54_ek.dts

@@ -121,6 +121,28 @@
 	};
 };
 
+&flx11 {
+	mchp,flexcom-mode = <SAM_FLEXCOM_MODE_SPI>;
+	status = "okay";
+
+	spi11: spi@400 {
+		pinctrl-0 = <&pinctrl_spi11_default>;
+		pinctrl-names = "default";
+		cs-gpios = <&piob 6 GPIO_ACTIVE_LOW>;
+		status = "okay";
+
+		nor_flash: sst26vf064@0 {
+			compatible ="jedec,spi-nor";
+			reg = <0>;
+			spi-max-frequency = <10000000>;
+			size = <DT_SIZE_M(64)>; /* 64 Mbits */
+			jedec-id = [bf 26 43];
+			requires-ulbpr;
+			status = "okay";
+		};
+	};
+};
+
 &pinctrl {
 	pinctrl_flx3_default: flx3_default {
 		group1 {
@@ -179,6 +201,15 @@
 		};
 	};
 
+	pinctrl_spi11_default: spi11_default {
+		group1 {
+			pinmux = <PIN_PB3__FLEXCOM11_IO0>,
+				 <PIN_PB4__FLEXCOM11_IO1>,
+				 <PIN_PB5__FLEXCOM11_IO2>,
+				 <PIN_PB6__GPIO>; /* GPIO CS */
+			bias-pull-up;
+		};
+	};
 };
 
 &pit64b0 {

boards/microchip/sam/sama7g54_ek/sama7g54_ek.yaml

@@ -11,5 +11,6 @@ ram: 128
 supported:
   - sdhc
   - shell
+  - spi
   - uart
 vendor: microchip