boards: nxp: imx95_evk_mimx9596_m7: add uart dma support

- verify in uart_async_api test case.

Signed-off-by: Yongxu Wang <yongxu.wang@nxp.com>

Author: yongxu-wang15

boards/nxp/imx95_evk/imx95_evk-pinctrl.dtsi

@@ -96,6 +96,16 @@
 		};
 	};
 
+	lpuart5_default: lpuart5_default {
+		group0 {
+			pinmux = <&iomuxc_gpio_io01_lpuart_rx_lpuart5_rx>,
+				<&iomuxc_gpio_io00_lpuart_tx_lpuart5_tx>;
+			bias-pull-up;
+			slew-rate = "slightly_fast";
+			drive-strength = "x4";
+		};
+	};
+
 	sai3_default: sai3_default {
 		group0 {
 			pinmux = <&iomuxc_gpio_io16_sai_tx_bclk_sai3_tx_bclk>,

boards/nxp/imx95_evk/imx95_evk_mimx9596_m7.dts

@@ -69,6 +69,13 @@
 	pinctrl-names = "default";
 };
 
+&lpuart5 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&lpuart5_default>;
+	pinctrl-names = "default";
+};
+
 &sai3 {
 	pinctrl-0 = <&sai3_default>;
 	pinctrl-names = "default";
@@ -83,3 +90,7 @@
 &lptmr2 {
 	status = "okay";
 };
+
+&edma2 {
+	status = "okay";
+};

boards/nxp/imx95_evk/imx95_evk_mimx9596_m7.yaml

@@ -20,6 +20,7 @@ supported:
   - spi
   - netif:eth
   - counter
+  - dma
 testing:
   binaries:
     - flash.bin

dts/arm/nxp/nxp_imx95_m7.dtsi

@@ -135,11 +135,16 @@
 		};
 
 		edma2: dma@42000000 {
-			compatible = "nxp,edma";
-			reg = <0x42000000 (DT_SIZE_K(64) * 33)>;
-			valid-channels = <30>, <31>;
-			interrupts = <143 0>, <143 0>;
+			compatible = "nxp,mcux-edma";
+			reg = <0x42000000 0x4000>;
 			#dma-cells = <2>;
+			nxp,version = <5>;
+			dma-channels = <64>;
+			dma-requests = <92>;
+			no-error-irq;
+			interrupts = <128 0>, <129 0>, <143 0>;
+			channels-shared-irq-mask = <0x00000003 0x00000000 0x0000000C 0x00000000
+						0x00000030 0x00000000>;
 			status = "disabled";
 		};
 
@@ -234,6 +239,8 @@
 			reg = <0x42570000 DT_SIZE_K(64)>;
 			interrupts = <64 3>;
 			clocks = <&scmi_clk IMX95_CLK_LPUART3>;
+			dmas = <&edma2 0 17>, <&edma2 1 18>;
+			dma-names = "tx", "rx";
 			status = "disabled";
 		};
 
@@ -250,6 +257,8 @@
 			reg = <0x42590000 DT_SIZE_K(64)>;
 			interrupts = <66 3>;
 			clocks = <&scmi_clk IMX95_CLK_LPUART5>;
+			dmas = <&edma2 2 21>, <&edma2 3 22>;
+			dma-names = "tx", "rx";
 			status = "disabled";
 		};
 
@@ -269,7 +278,7 @@
 			interrupts = <170 0>;
 			dai-index = <3>;
 			mclk-is-output;
-			dmas = <&edma2 30 60>, <&edma2 31 61>;
+			dmas = <&edma2 4 60>, <&edma2 5 61>;
 			dma-names = "tx", "rx";
 			status = "disabled";
 		};

tests/drivers/uart/uart_async_api/boards/imx95_evk_mimx9596_m7.conf

@@ -0,0 +1 @@
+CONFIG_DMA_MCUX_USE_DTCM_FOR_DMA_DESCRIPTORS=n

tests/drivers/uart/uart_async_api/boards/imx95_evk_mimx9596_m7.overlay

@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+dut: &lpuart5 {
+	status = "okay";
+	current-speed = <115200>;
+	nxp,loopback;
+};