From 3c87b7acaa1b7f3f55b304e2a7857f7caffb3be8 Mon Sep 17 00:00:00 2001
From: Thomas Stranger <thomas.stranger@outlook.com>
Date: Wed, 14 Apr 2021 14:57:30 +0200
Subject: [PATCH] tests: spi: add nucleo_g431rb to spi_loopback test in async
 mode

Add nucleo_g431rb to spi_loopback test using spi async configuration.
Such that tests do not only run with syncronous spi configuration
(nucleo_g474re), but also with the asyncronous configuration.

Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
---
 .../spi_loopback/boards/nucleo_g431rb.conf    |  8 ++++++
 .../spi_loopback/boards/nucleo_g431rb.overlay | 27 +++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 tests/drivers/spi/spi_loopback/boards/nucleo_g431rb.conf
 create mode 100644 tests/drivers/spi/spi_loopback/boards/nucleo_g431rb.overlay

diff --git a/tests/drivers/spi/spi_loopback/boards/nucleo_g431rb.conf b/tests/drivers/spi/spi_loopback/boards/nucleo_g431rb.conf
new file mode 100644
index 00000000000..2201fa9b7c0
--- /dev/null
+++ b/tests/drivers/spi/spi_loopback/boards/nucleo_g431rb.conf
@@ -0,0 +1,8 @@
+CONFIG_SPI_LOOPBACK_DRV_NAME="SPI_1"
+
+CONFIG_SPI_STM32_DMA=y
+CONFIG_SPI_STM32_INTERRUPT=n
+
+CONFIG_SPI_ASYNC=y
+
+CONFIG_SPI_LOOPBACK_MODE_LOOP=n
diff --git a/tests/drivers/spi/spi_loopback/boards/nucleo_g431rb.overlay b/tests/drivers/spi/spi_loopback/boards/nucleo_g431rb.overlay
new file mode 100644
index 00000000000..bb5824168e5
--- /dev/null
+++ b/tests/drivers/spi/spi_loopback/boards/nucleo_g431rb.overlay
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2021 Thomas Stranger
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&spi1 {
+	dmas = <&dmamux1 0 11 0x20440 0
+		&dmamux1 1 10 0x20480 0>;
+	dma-names = "tx", "rx";
+};
+
+&dma1 {
+	status = "okay";
+};
+
+&dmamux1 {
+	status = "okay";
+};
+
+&rcc {
+	/*
+	 * Reduce bus clock speed to be able to reach
+	 * SPI_LOOPBACK_SLOW_FREQ = 500000 with max prescaler 256
+	 */
+	apb2-prescaler = <2>;
+};