boards: arm: mimxrt1170_evkb: add support for SPI

Add support for SPI on RT1170 EVKB, verified using SPI loopback sample.

Signed-off-by: Daniel DeGrasse <[email protected]>

Author: danieldegrasse

boards/arm/mimxrt1170_evk/doc/index.rst

@@ -104,7 +104,7 @@ RT1170 EVKB (`mimxrt1170_evkb_cm7/cm4`)
 +-----------+------------+-------------------------------------+-----------------+-----------------+
 | CAN       | on-chip    | flexcan                             | Supported (M7)  | Supported (M7)  |
 +-----------+------------+-------------------------------------+-----------------+-----------------+
-| SPI       | on-chip    | spi                                 | Supported (M7)  | No support      |
+| SPI       | on-chip    | spi                                 | Supported (M7)  | Supported       |
 +-----------+------------+-------------------------------------+-----------------+-----------------+
 | I2C       | on-chip    | i2c                                 | Supported       | Supported       |
 +-----------+------------+-------------------------------------+-----------------+-----------------+

boards/arm/mimxrt1170_evk/mimxrt1170_evkb_cm4.dts

@@ -70,6 +70,10 @@
 	};
 };
 
+&lpspi1 {
+	status = "okay";
+};
+
 &lpi2c5 {
 	/* FXOS accelerometer is not present in this board */
 	/delete-node/ fxos8700@1f;

boards/arm/mimxrt1170_evk/mimxrt1170_evkb_cm4.yaml

@@ -18,4 +18,5 @@ supported:
   - dma
   - gpio
   - i2c
+  - spi
   - pwm

boards/arm/mimxrt1170_evk/mimxrt1170_evkb_cm7.yaml

@@ -22,5 +22,6 @@ supported:
   - gpio
   - hwinfo
   - i2c
+  - spi
   - usb_device
   - watchdog

tests/drivers/spi/spi_loopback/boards/mimxrt1170_evkb_cm4.overlay

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2023 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&lpspi1 {
+	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>;
+	};
+};

tests/drivers/spi/spi_loopback/boards/mimxrt1170_evkb_cm7.overlay

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2023 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&lpspi1 {
+	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>;
+	};
+};