boards: ambiq: add adc to apollo3 and 3 plus boards

Add adc to apollo3 and 3 plus boards Signed-off-by: BH Li <bli@ambiq.com>
2024-08-12 18:12:30 +08:00 · 2024-08-12 18:12:30 +08:00 · 9384e48f8a
commit 9384e48f8a
parent 41381fa707
6 changed files with 30 additions and 0 deletions
--- a/boards/ambiq/apollo3_evb/apollo3_evb-pinctrl.dtsi
+++ b/boards/ambiq/apollo3_evb/apollo3_evb-pinctrl.dtsi
@ -96,6 +96,13 @@
 		};
 	};

+	adc0_default: adc0_default{
+		group1 {
+			pinmux = <ADCSE4_P32>, <ADCSE7_P35>;
+			drive-strength = "0.1";
+		};
+	};
+
 	mspi0_default: mspi0_default{
 		group1 {
 			pinmux = <MSPI0_0_P22>,
--- a/boards/ambiq/apollo3_evb/apollo3_evb.dts
+++ b/boards/ambiq/apollo3_evb/apollo3_evb.dts
@ -151,6 +151,13 @@
 	status = "okay";
 };

+&adc0 {
+	compatible = "ambiq,adc";
+	pinctrl-0 = <&adc0_default>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
 &gpio0_31 {
 	status = "okay";
 };
--- a/boards/ambiq/apollo3_evb/apollo3_evb.yaml
+++ b/boards/ambiq/apollo3_evb/apollo3_evb.yaml
@ -9,6 +9,7 @@ toolchain:
  - gnuarmemb
 supported:
  - uart
+  - adc
  - watchdog
  - counter
  - gpio
--- a/boards/ambiq/apollo3p_evb/apollo3p_evb-pinctrl.dtsi
+++ b/boards/ambiq/apollo3p_evb/apollo3p_evb-pinctrl.dtsi
@ -96,6 +96,13 @@
 		};
 	};

+	adc0_default: adc0_default{
+		group1 {
+			pinmux = <ADCSE4_P32>, <ADCSE7_P35>;
+			drive-strength = "0.1";
+		};
+	};
+
 	mspi0_default: mspi0_default{
 		group1 {
 			pinmux = <MSPI0_0_P22>,
--- a/boards/ambiq/apollo3p_evb/apollo3p_evb.dts
+++ b/boards/ambiq/apollo3p_evb/apollo3p_evb.dts
@ -151,6 +151,13 @@
 	status = "okay";
 };

+&adc0 {
+	compatible = "ambiq,adc";
+	pinctrl-0 = <&adc0_default>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
 &gpio0_31 {
 	status = "okay";
 };
--- a/boards/ambiq/apollo3p_evb/apollo3p_evb.yaml
+++ b/boards/ambiq/apollo3p_evb/apollo3p_evb.yaml
@ -9,6 +9,7 @@ toolchain:
  - gnuarmemb
 supported:
  - uart
+  - adc
  - watchdog
  - counter
  - gpio