From 565e582b8dcbe655bb5b1e5a11ad803da085b0db Mon Sep 17 00:00:00 2001
From: Manuel Arguelles <manuel.arguelles@nxp.com>
Date: Thu, 6 Jul 2023 17:29:42 -0300
Subject: [PATCH] boards: arm: mr_canhubk3: enable support for LPSPI
MIME-Version: 1.0
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Configure LPSPI instances on this board. All of them are routed with SDI
and SDO data pins inverted.

Enable SPI tests without DMA support for the moment.

Signed-off-by: Manuel Argüelles <manuel.arguelles@nxp.com>
---
 boards/arm/mr_canhubk3/doc/index.rst          |  1 +
 .../arm/mr_canhubk3/mr_canhubk3-pinctrl.dtsi  | 59 +++++++++++++++++++
 boards/arm/mr_canhubk3/mr_canhubk3.dts        | 30 ++++++++++
 boards/arm/mr_canhubk3/mr_canhubk3.yaml       |  1 +
 .../spi_loopback/boards/mr_canhubk3.overlay   | 21 +++++++
 5 files changed, 112 insertions(+)
 create mode 100644 tests/drivers/spi/spi_loopback/boards/mr_canhubk3.overlay

diff --git a/boards/arm/mr_canhubk3/doc/index.rst b/boards/arm/mr_canhubk3/doc/index.rst
index 0ae9bccccc1..66e0134fe80 100644
--- a/boards/arm/mr_canhubk3/doc/index.rst
+++ b/boards/arm/mr_canhubk3/doc/index.rst
@@ -53,6 +53,7 @@ QSPI          on-chip     flash
 FLEXCAN       on-chip     can
 LPI2C         on-chip     i2c
 ADC SAR       on-chip     adc
+LPSPI         on-chip     spi
 ============  ==========  ================================
 
 The default configuration can be found in the Kconfig file
diff --git a/boards/arm/mr_canhubk3/mr_canhubk3-pinctrl.dtsi b/boards/arm/mr_canhubk3/mr_canhubk3-pinctrl.dtsi
index 460a4e35b46..e3bd65f54a5 100644
--- a/boards/arm/mr_canhubk3/mr_canhubk3-pinctrl.dtsi
+++ b/boards/arm/mr_canhubk3/mr_canhubk3-pinctrl.dtsi
@@ -194,4 +194,63 @@
 			output-enable;
 		};
 	};
+
+	lpspi1_default: lpspi1_default {
+		group1 {
+			pinmux = <PTA28_LPSPI1_SCK_O>, <PTA29_LPSPI1_SIN_O>,
+				<PTA21_LPSPI1_PCS0_O>, <PTE4_LPSPI1_PCS1_O>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <PTA30_LPSPI1_SOUT_I>;
+			input-enable;
+		};
+	};
+
+	lpspi2_default: lpspi2_default {
+		group1 {
+			pinmux = <PTB29_LPSPI2_SCK_O>, <PTB28_LPSPI2_SIN_O>,
+				<PTB25_LPSPI2_PCS0_O>, <PTC19_LPSPI2_PCS1_O>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <PTB27_LPSPI2_SOUT_I>;
+			input-enable;
+		};
+	};
+
+	lpspi3_default: lpspi3_default {
+		group1 {
+			pinmux = <PTD1_LPSPI3_SCK_O>, <PTE10_LPSPI3_SIN_O>,
+				<PTD17_LPSPI3_PCS0_O>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <PTD0_LPSPI3_SOUT_I>;
+			input-enable;
+		};
+	};
+
+	lpspi4_default: lpspi4_default {
+		group1 {
+			pinmux = <PTB10_LPSPI4_SCK_O>, <PTB11_LPSPI4_SIN_O>,
+				<PTB8_LPSPI4_PCS0_O>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <PTB9_LPSPI4_SOUT_I>;
+			input-enable;
+		};
+	};
+
+	lpspi5_default: lpspi5_default {
+		group1 {
+			pinmux = <PTD26_LPSPI5_SCK_O>, <PTD28_LPSPI5_SIN_O>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <PTD27_LPSPI5_SOUT_I>;
+			input-enable;
+		};
+	};
 };
diff --git a/boards/arm/mr_canhubk3/mr_canhubk3.dts b/boards/arm/mr_canhubk3/mr_canhubk3.dts
index df1f85c84b8..9516d52dd35 100644
--- a/boards/arm/mr_canhubk3/mr_canhubk3.dts
+++ b/boards/arm/mr_canhubk3/mr_canhubk3.dts
@@ -320,3 +320,33 @@
 	pinctrl-names = "default";
 	clock-frequency = <I2C_BITRATE_STANDARD>;
 };
+
+&lpspi1 {
+	pinctrl-0 = <&lpspi1_default>;
+	pinctrl-names = "default";
+	data-pin-config = "sdo-in,sdi-out";
+};
+
+&lpspi2 {
+	pinctrl-0 = <&lpspi2_default>;
+	pinctrl-names = "default";
+	data-pin-config = "sdo-in,sdi-out";
+};
+
+&lpspi3 {
+	pinctrl-0 = <&lpspi3_default>;
+	pinctrl-names = "default";
+	data-pin-config = "sdo-in,sdi-out";
+};
+
+&lpspi4 {
+	pinctrl-0 = <&lpspi4_default>;
+	pinctrl-names = "default";
+	data-pin-config = "sdo-in,sdi-out";
+};
+
+&lpspi5 {
+	pinctrl-0 = <&lpspi5_default>;
+	pinctrl-names = "default";
+	data-pin-config = "sdo-in,sdi-out";
+};
diff --git a/boards/arm/mr_canhubk3/mr_canhubk3.yaml b/boards/arm/mr_canhubk3/mr_canhubk3.yaml
index 32648c36efa..a48ea1e78fc 100644
--- a/boards/arm/mr_canhubk3/mr_canhubk3.yaml
+++ b/boards/arm/mr_canhubk3/mr_canhubk3.yaml
@@ -15,3 +15,4 @@ supported:
   - can
   - i2c
   - adc
+  - spi
diff --git a/tests/drivers/spi/spi_loopback/boards/mr_canhubk3.overlay b/tests/drivers/spi/spi_loopback/boards/mr_canhubk3.overlay
new file mode 100644
index 00000000000..928f05a9929
--- /dev/null
+++ b/tests/drivers/spi/spi_loopback/boards/mr_canhubk3.overlay
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2023 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&lpspi1 {
+	status = "okay";
+
+	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 = <5000000>;
+	};
+};