From d404f018a646f701da4fc54295489fd4e0d25cf3 Mon Sep 17 00:00:00 2001
From: Aaron Ye <aye@ambiq.com>
Date: Mon, 25 Sep 2023 12:45:52 +0800
Subject: [PATCH] boards: arm: apollo4p_blue_kxr_evb: Enable MSPI.

This commit enables MSPI instance for apollo4p_blue_kxr_evb board.
Also adds pin configuration for each instance.

Signed-off-by: Aaron Ye <aye@ambiq.com>
---
 .../apollo4p_blue_kxr_evb-pinctrl.dtsi        | 39 +++++++++++++++++++
 .../apollo4p_blue_kxr_evb.dts                 |  6 +++
 2 files changed, 45 insertions(+)

diff --git a/boards/arm/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb-pinctrl.dtsi b/boards/arm/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb-pinctrl.dtsi
index 35965f21a32..4d8f6cb0525 100644
--- a/boards/arm/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb-pinctrl.dtsi
+++ b/boards/arm/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb-pinctrl.dtsi
@@ -153,4 +153,43 @@
 			ambiq,iom-nce-module = <28>;
 		};
 	};
+	mspi0_default: mspi0_default{
+		group1 {
+			pinmux = <MSPI0_0_P64>,
+				 <MSPI0_1_P65>,
+				 <MSPI0_8_P72>;
+		};
+		group2 {
+			pinmux = <NCE57_P57>;
+			drive-push-pull;
+			drive-strength = "0.5";
+			ambiq,iom-nce-module = <32>;
+		};
+	};
+	mspi1_default: mspi1_default{
+		group1 {
+			pinmux = <MSPI1_0_P37>,
+				 <MSPI1_1_P38>,
+				 <MSPI1_8_P45>;
+		};
+		group2 {
+			pinmux = <NCE56_P56>;
+			drive-push-pull;
+			drive-strength = "0.5";
+			ambiq,iom-nce-module = <34>;
+		};
+	};
+	mspi2_default: mspi2_default{
+		group1 {
+			pinmux = <MSPI2_0_P74>,
+				 <MSPI2_1_P75>,
+				 <MSPI2_8_P82>;
+		};
+		group2 {
+			pinmux = <NCE52_P52>;
+			drive-push-pull;
+			drive-strength = "0.5";
+			ambiq,iom-nce-module = <36>;
+		};
+	};
 };
diff --git a/boards/arm/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb.dts b/boards/arm/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb.dts
index b09ba535109..1eca9ae225e 100644
--- a/boards/arm/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb.dts
+++ b/boards/arm/apollo4p_blue_kxr_evb/apollo4p_blue_kxr_evb.dts
@@ -50,3 +50,9 @@
 	clock-frequency = <1000000>;
 	status = "okay";
 };
+
+&mspi0 {
+	pinctrl-0 = <&mspi0_default>;
+	pinctrl-names = "default";
+	status = "okay";
+};