tests: drivers: dma: chan_blen_transfer: add support for nucleo_h753zi

add .conf and .overlay files with appropriate configurations for
nucleo_h753zi.

Signed-off-by: Fabrice DJIATSA <[email protected]>

Author: djiatsaf-st

tests/drivers/dma/chan_blen_transfer/boards/nucleo_h753zi.conf

@@ -0,0 +1,9 @@
+CONFIG_DMA_TRANSFER_CHANNEL_NR_0=4
+CONFIG_DMA_TRANSFER_CHANNEL_NR_1=6
+CONFIG_DMA_LOOP_TRANSFER_NUMBER_OF_DMAS=2
+
+# Required by BDMA which only has access to
+# a NOCACHE SRAM4 section. All other DMAs also
+# has access to this section.
+CONFIG_CODE_DATA_RELOCATION=y
+CONFIG_DMA_LOOP_TRANSFER_RELOCATE_SECTION="SRAM4"

tests/drivers/dma/chan_blen_transfer/boards/nucleo_h753zi.overlay

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2025 STMicroelectronics
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
+
+&dma1 {
+	status = "okay";
+};
+
+&dma2 {
+	status = "okay";
+};
+
+tst_dma0: &dmamux1 {
+	status = "okay";
+};
+
+/* The BDMA driver expects the SRAM4 region
+ * to be non-cachable.
+ */
+&sram4 {
+	zephyr,memory-attr = <DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE)>;
+};
+
+&bdma1 {
+	status = "okay";
+};
+
+tst_dma1: &dmamux2 {
+	status = "okay";
+};