boards: ambiq: apollo4p: Add USB nodes

Add USB node to apollo4p and apollo4p_blue qualifier, and apollo4p_evb
and apollo4p_blue_kxr_evb board to enableUSB support on the MCU and
its EVB.

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

Author: zeonchew

boards/ambiq/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb.dts

@@ -137,6 +137,12 @@
 	status = "okay";
 };
 
+zephyr_udc0: &usb {
+	vddusb33-gpios = <&gpio0_31 13 (GPIO_PULL_UP)>;
+	vddusb0p9-gpios = <&gpio0_31 15 (GPIO_PULL_UP)>;
+	status = "okay";
+};
+
 &gpio0_31 {
 	status = "okay";
 };

boards/ambiq/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb.yaml

@@ -16,6 +16,7 @@ supported:
   - i2c
   - clock_control
   - ble
+  - usbd
 testing:
   ignore_tags:
     - net

boards/ambiq/apollo4p_evb/apollo4p_evb.dts

@@ -143,6 +143,12 @@ compatible = "ambiq,adc";
 	};
 };
 
+zephyr_udc0: &usb {
+	vddusb33-gpios = <&gpio96_127 7 (GPIO_PULL_UP)>;
+	vddusb0p9-gpios = <&gpio96_127 5 (GPIO_PULL_UP)>;
+	status = "okay";
+};
+
 &gpio0_31 {
 	status = "okay";
 };

boards/ambiq/apollo4p_evb/apollo4p_evb.yaml

@@ -17,6 +17,7 @@ supported:
   - rtc
   - adc
   - hwinfo
+  - usbd
 testing:
   ignore_tags:
     - net

dts/arm/ambiq/ambiq_apollo4p.dtsi

@@ -338,6 +338,16 @@
 			status = "disabled";
 		};
 
+		usb: usb@400b0000 {
+			compatible = "ambiq,usb";
+			reg = <0x400B0000 0x4100>;
+			interrupts = <27 0>;
+			num-bidir-endpoints = <6>;
+			maximum-speed = "full-speed";
+			status = "disabled";
+			ambiq,pwrcfg = <&pwrcfg 0x4 0x400000>;
+		};
+
 		pinctrl: pin-controller@40010000 {
 			compatible = "ambiq,apollo4-pinctrl";
 			reg = <0x40010000 0x800>;

dts/arm/ambiq/ambiq_apollo4p_blue.dtsi

@@ -313,6 +313,16 @@
 			ambiq,pwrcfg = <&pwrcfg 0x4 0x10000>;
 		};
 
+		usb: usb@400b0000 {
+			compatible = "ambiq,usb";
+			reg = <0x400B0000 0x4100>;
+			interrupts = <27 0>;
+			num-bidir-endpoints = <6>;
+			maximum-speed = "full-speed";
+			status = "disabled";
+			ambiq,pwrcfg = <&pwrcfg 0x4 0x400000>;
+		};
+
 		pinctrl: pin-controller@40010000 {
 			compatible = "ambiq,apollo4-pinctrl";
 			reg = <0x40010000 0x800>;