tests: drivers: dma: loop_transfer: add stm32h750b_dk config

Run test on stm32h750b_dk board

Signed-off-by: Abderrahmane Jarmouni <[email protected]>

Author: JarmouniA

tests/drivers/dma/loop_transfer/boards/stm32h750b_dk.conf

@@ -0,0 +1,8 @@
+CONFIG_DMA_LOOP_TRANSFER_CHANNEL_NR=3
+CONFIG_DMA_LOOP_TRANSFER_NUMBER_OF_DMAS=2
+
+# Required by BDMA which only has access to
+# SRAM4 & the driver excpects it to be uncached as well.
+# Other DMAs have access to SRAM4 as well.
+CONFIG_CODE_DATA_RELOCATION=y
+CONFIG_DMA_LOOP_TRANSFER_RELOCATE_SECTION="SRAM4"

tests/drivers/dma/loop_transfer/boards/stm32h750b_dk.overlay

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2024 Abderrahmane JARMOUNI
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&sram4 {
+	zephyr,memory-attr = <DT_MEM_ARM_MPU_RAM_NOCACHE>;
+	zephyr,memory-region = "SRAM4";
+	status = "okay";
+};
+
+&dma1 {
+	status = "okay";
+};
+
+&dma2 {
+	status = "okay";
+};
+
+tst_dma0: &dmamux1 {
+	status = "okay";
+};
+
+&bdma1 {
+	status = "okay";
+};
+
+tst_dma1: &dmamux2 {
+	status = "okay";
+};