boards: frdm_mcxn947: Add support for SPI and DMA

Add support for SPI and DMA

Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>

boards/nxp/frdm_mcxn947/board.c

@@ -94,6 +94,11 @@ static int frdm_mcxn947_init(void)
 	/* Set AHBCLKDIV divider to value 1 */
 	CLOCK_SetClkDiv(kCLOCK_DivAhbClk, 1U);
 
+#if DT_NODE_HAS_STATUS(DT_NODELABEL(flexcomm1), okay)
+	CLOCK_SetClkDiv(kCLOCK_DivFlexcom1Clk, 1u);
+	CLOCK_AttachClk(kFRO12M_to_FLEXCOMM1);
+#endif
+
 #if DT_NODE_HAS_STATUS(DT_NODELABEL(flexcomm4), okay)
 	CLOCK_SetClkDiv(kCLOCK_DivFlexcom4Clk, 1u);
 	CLOCK_AttachClk(kFRO12M_to_FLEXCOMM4);

boards/nxp/frdm_mcxn947/doc/index.rst

@@ -59,6 +59,10 @@ The FRDM-MCXN947 board configuration supports the following hardware features:
 | UART      | on-chip    | serial port-polling;                |
 |           |            | serial port-interrupt               |
 +-----------+------------+-------------------------------------+
+| SPI       | on-chip    | spi                                 |
++-----------+------------+-------------------------------------+
+| DMA       | on-chip    | dma                                 |
++-----------+------------+-------------------------------------+
 | CLOCK     | on-chip    | clock_control                       |
 +-----------+------------+-------------------------------------+
 | FLASH     | on-chip    | soc flash                           |

boards/nxp/frdm_mcxn947/frdm_mcxn947-pinctrl.dtsi

@@ -7,6 +7,18 @@
 #include <nxp/mcx/MCXN947VDF-pinctrl.h>
 
 &pinctrl {
+	pinmux_flexcomm1_lpspi: pinmux_flexcomm1_lpspi {
+		group0 {
+			pinmux = <FC1_P0_PIO0_24>,
+				<FC1_P1_PIO0_25>,
+				<FC1_P2_PIO0_26>,
+				<FC1_P3_PIO0_27>;
+			slew-rate = "fast";
+			drive-strength = "low";
+			input-enable;
+		};
+	};
+
 	pinmux_flexcomm4_lpuart: pinmux_flexcomm4_lpuart {
 		group0 {
 			pinmux = <FC4_P0_PIO1_8>,

boards/nxp/frdm_mcxn947/frdm_mcxn947.dtsi

@@ -49,6 +49,11 @@
 	};
 };
 
+&flexcomm1_lpspi1 {
+	pinctrl-0 = <&pinmux_flexcomm1_lpspi>;
+	pinctrl-names = "default";
+};
+
 &flexcomm4_lpuart4 {
 	current-speed = <115200>;
 	pinctrl-0 = <&pinmux_flexcomm4_lpuart>;

boards/nxp/frdm_mcxn947/frdm_mcxn947_mcxn947_cpu0.dts

@@ -65,6 +65,18 @@
 	status = "okay";
 };
 
+&edma0 {
+	status = "okay";
+};
+
+&flexcomm1 {
+	status = "okay";
+};
+
+&flexcomm1_lpspi1 {
+	status = "okay";
+};
+
 &flexcomm4 {
 	status = "okay";
 };

boards/nxp/frdm_mcxn947/frdm_mcxn947_mcxn947_cpu0.yaml

@@ -15,5 +15,7 @@ toolchain:
   - gnuarmemb
   - xtools
 supported:
+  - dma
   - gpio
+  - spi
 vendor: nxp