boards: frdm_mcxa166, frdm_mcxa276: add spi support

peterwangsz · kartben · commit 2fc2c1dd2a86 · 2025-05-16T19:01:50.000+02:00
1. enable spi support
2. verified tests/drivers/spi/spi_loopback

Signed-off-by: Peter Wang &lt;chaoyi.wang@nxp.com&gt;
diff --git a/boards/nxp/frdm_mcxa166/board.c b/boards/nxp/frdm_mcxa166/board.c
@@ -222,6 +222,18 @@ void board_early_init_hook(void)
 
 #endif
 
+#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(lpspi0))
+	/* Configure input clock to be able to reach the datasheet specified band rate. */
+	CLOCK_SetClockDiv(kCLOCK_DivLPSPI0, 1u);
+	CLOCK_AttachClk(kFRO_LF_DIV_to_LPSPI0);
+#endif
+
+#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(lpspi1))
+	/* Configure input clock to be able to reach the datasheet specified band rate. */
+	CLOCK_SetClockDiv(kCLOCK_DivLPSPI1, 1u);
+	CLOCK_AttachClk(kFRO_LF_DIV_to_LPSPI1);
+#endif
+
 #if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(lptmr0))
 
 /*
diff --git a/boards/nxp/frdm_mcxa166/frdm_mcxa166-pinctrl.dtsi b/boards/nxp/frdm_mcxa166/frdm_mcxa166-pinctrl.dtsi
@@ -69,4 +69,15 @@
 		};
 	};
 
+	pinmux_lpspi0: pinmux_lpspi0 {
+		group0 {
+			pinmux = <LPSPI0_SDO_P1_0>,
+				 <LPSPI0_SCK_P1_1>,
+				 <LPSPI0_SDI_P1_2>,
+				 <LPSPI0_PCS0_P1_3>;
+			slew-rate = "fast";
+			drive-strength = "low";
+			input-enable;
+		};
+	};
 };
diff --git a/boards/nxp/frdm_mcxa166/frdm_mcxa166.dts b/boards/nxp/frdm_mcxa166/frdm_mcxa166.dts
@@ -138,6 +138,12 @@
 	pinctrl-names = "default";
 };
 
+&lpspi0 {
+	status = "okay";
+	pinctrl-0 = <&pinmux_lpspi0>;
+	pinctrl-names = "default";
+};
+
 &flash {
 	partitions {
 		compatible = "fixed-partitions";
diff --git a/boards/nxp/frdm_mcxa166/frdm_mcxa166.yaml b/boards/nxp/frdm_mcxa166/frdm_mcxa166.yaml
@@ -19,6 +19,7 @@ supported:
   - flash
   - adc
   - i2c
+  - spi
   - watchdog
   - counter
   - dma
diff --git a/boards/nxp/frdm_mcxa276/board.c b/boards/nxp/frdm_mcxa276/board.c
@@ -222,6 +222,18 @@ void board_early_init_hook(void)
 
 #endif
 
+#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(lpspi0))
+	/* Configure input clock to be able to reach the datasheet specified band rate. */
+	CLOCK_SetClockDiv(kCLOCK_DivLPSPI0, 1u);
+	CLOCK_AttachClk(kFRO_LF_DIV_to_LPSPI0);
+#endif
+
+#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(lpspi1))
+	/* Configure input clock to be able to reach the datasheet specified band rate. */
+	CLOCK_SetClockDiv(kCLOCK_DivLPSPI1, 1u);
+	CLOCK_AttachClk(kFRO_LF_DIV_to_LPSPI1);
+#endif
+
 #if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(lptmr0))
 
 /*
diff --git a/boards/nxp/frdm_mcxa276/frdm_mcxa276-pinctrl.dtsi b/boards/nxp/frdm_mcxa276/frdm_mcxa276-pinctrl.dtsi
@@ -69,4 +69,15 @@
 		};
 	};
 
+	pinmux_lpspi0: pinmux_lpspi0 {
+		group0 {
+			pinmux = <LPSPI0_SDO_P1_0>,
+				 <LPSPI0_SCK_P1_1>,
+				 <LPSPI0_SDI_P1_2>,
+				 <LPSPI0_PCS0_P1_3>;
+			slew-rate = "fast";
+			drive-strength = "low";
+			input-enable;
+		};
+	};
 };
diff --git a/boards/nxp/frdm_mcxa276/frdm_mcxa276.dts b/boards/nxp/frdm_mcxa276/frdm_mcxa276.dts
@@ -138,6 +138,12 @@
 	pinctrl-names = "default";
 };
 
+&lpspi0 {
+	status = "okay";
+	pinctrl-0 = <&pinmux_lpspi0>;
+	pinctrl-names = "default";
+};
+
 &flash {
 	partitions {
 		compatible = "fixed-partitions";
diff --git a/boards/nxp/frdm_mcxa276/frdm_mcxa276.yaml b/boards/nxp/frdm_mcxa276/frdm_mcxa276.yaml
@@ -19,6 +19,7 @@ supported:
   - flash
   - adc
   - i2c
+  - spi
   - watchdog
   - counter
   - dma
diff --git a/dts/arm/nxp/nxp_mcxa166.dtsi b/dts/arm/nxp/nxp_mcxa166.dtsi
@@ -363,6 +363,30 @@
 			status = "disabled";
 		};
 
+		lpspi0: spi@4009c000 {
+			compatible = "nxp,lpspi";
+			reg = <0x4009c000 0x1000>;
+			interrupts = <28 0>;
+			clocks = <&syscon MCUX_LPSPI0_CLK>;
+			tx-fifo-size = <4>;
+			rx-fifo-size = <4>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		lpspi1: spi@4009d000 {
+			compatible = "nxp,lpspi";
+			reg = <0x4009d000 0x1000>;
+			interrupts = <29 0>;
+			clocks = <&syscon MCUX_LPSPI1_CLK>;
+			tx-fifo-size = <4>;
+			rx-fifo-size = <4>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		wwdt0: watchdog@4000c000 {
 			compatible = "nxp,lpc-wwdt";
 			reg = <0x4000c000 0x1000>;
diff --git a/dts/arm/nxp/nxp_mcxa276.dtsi b/dts/arm/nxp/nxp_mcxa276.dtsi
@@ -363,6 +363,30 @@
 			status = "disabled";
 		};
 
+		lpspi0: spi@4009c000 {
+			compatible = "nxp,lpspi";
+			reg = <0x4009c000 0x1000>;
+			interrupts = <28 0>;
+			clocks = <&syscon MCUX_LPSPI0_CLK>;
+			tx-fifo-size = <4>;
+			rx-fifo-size = <4>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		lpspi1: spi@4009d000 {
+			compatible = "nxp,lpspi";
+			reg = <0x4009d000 0x1000>;
+			interrupts = <29 0>;
+			clocks = <&syscon MCUX_LPSPI1_CLK>;
+			tx-fifo-size = <4>;
+			rx-fifo-size = <4>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		wwdt0: watchdog@4000c000 {
 			compatible = "nxp,lpc-wwdt";
 			reg = <0x4000c000 0x1000>;
diff --git a/tests/drivers/spi/spi_loopback/boards/frdm_mcxa166.overlay b/tests/drivers/spi/spi_loopback/boards/frdm_mcxa166.overlay
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* To test this sample, connect
+ * LPSPI0 MOSI(J6-6, P1_0/LPSPI0_SDO)     -->        LPSPI0 MISO(J6-5, P1_2/LPSPI0_SDI)
+ */
+&lpspi0 {
+	slow@0 {
+		compatible = "test-spi-loopback-slow";
+		reg = <0>;
+		spi-max-frequency = <500000>;
+	};
+	fast@0 {
+		compatible = "test-spi-loopback-fast";
+		reg = <0>;
+		spi-max-frequency = <16000000>;
+	};
+};
diff --git a/tests/drivers/spi/spi_loopback/boards/frdm_mcxa276.overlay b/tests/drivers/spi/spi_loopback/boards/frdm_mcxa276.overlay
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* To test this sample, connect
+ * LPSPI0 MOSI(J6-6, P1_0/LPSPI0_SDO)     -->        LPSPI0 MISO(J6-5, P1_2/LPSPI0_SDI)
+ */
+&lpspi0 {
+	slow@0 {
+		compatible = "test-spi-loopback-slow";
+		reg = <0>;
+		spi-max-frequency = <500000>;
+	};
+	fast@0 {
+		compatible = "test-spi-loopback-fast";
+		reg = <0>;
+		spi-max-frequency = <16000000>;
+	};
+};

-Original file line number
+Diff line change
   - flash
   - adc
   - i2c
 +  - spi
   - watchdog
   - counter
   - dma