From e5f0075dc65eb0bf37e1a92266be91961943d647 Mon Sep 17 00:00:00 2001
From: Neil Chen <cheng.chen_1@nxp.com>
Date: Tue, 19 Nov 2024 16:32:11 +0800
Subject: [PATCH] board: frdmmcxc444: Add uart support

Add UART configuration and pin control. Set state to disabled,
as it serves as alternative to default LPUART0 or as second
uart only.

Signed-off-by: Neil Chen <cheng.chen_1@nxp.com>
---
 boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi | 8 ++++++++
 boards/nxp/frdm_mcxc444/frdm_mcxc444.dts          | 7 +++++++
 boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml         | 1 +
 3 files changed, 16 insertions(+)

diff --git a/boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi b/boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi
index 7f0010c3cbe..87552988ff8 100644
--- a/boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi
+++ b/boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi
@@ -16,4 +16,12 @@
 			slew-rate = "slow";
 		};
 	};
+	pinmux_uart2: pinmux_uart2 {
+		group0 {
+			pinmux = <UART2_RX_PTD2>,
+				<UART2_TX_PTD3>;
+			drive-strength = "low";
+			slew-rate = "slow";
+		};
+	};
 };
diff --git a/boards/nxp/frdm_mcxc444/frdm_mcxc444.dts b/boards/nxp/frdm_mcxc444/frdm_mcxc444.dts
index f574fdc13a1..0a0c55f730e 100644
--- a/boards/nxp/frdm_mcxc444/frdm_mcxc444.dts
+++ b/boards/nxp/frdm_mcxc444/frdm_mcxc444.dts
@@ -100,3 +100,10 @@
 &lptmr0 {
 	status = "okay";
 };
+
+&uart2 {
+	status = "disabled";
+	current-speed = <115200>;
+	pinctrl-0 = <&pinmux_uart2>;
+	pinctrl-names = "default";
+};
diff --git a/boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml b/boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml
index 1fe20ef5ccd..c32022e2b16 100644
--- a/boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml
+++ b/boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml
@@ -16,6 +16,7 @@ toolchain:
   - xtools
 supported:
   - gpio
+  - uart
   - counter
 testing:
   ignore_tags: