tests: update for MPS4

MPS4, similar to MPS3 Corstone-310, splits code between DTCM and SRAM
and thus requires similar handling.

Signed-off-by: Sudan Landge <sudan.landge@arm.com>

boards/arm/mps4/mps4_corstone320_fvp.yaml

@@ -17,6 +17,7 @@ supported:
   - gpio
 testing:
   default: true
+  timeout_multiplier: 4
   ignore_tags:
     - drivers
     - bluetooth

tests/application_development/vector_table_relocation/testcase.yaml

@@ -9,3 +9,4 @@ tests:
     platform_exclude:
       - mps3/corstone310/an555
       - mps3/corstone310/fvp
+      - mps4/corstone320/fvp

tests/arch/arm/arm_mpu_pxn/CMakeLists.txt

@@ -8,3 +8,4 @@ project(arm_mpu_pxn)
 target_sources(app PRIVATE src/main.c)
 zephyr_linker_sources_ifdef(CONFIG_SOC_MPS3_CORSTONE300 RAM_SECTIONS mps3_corstone300.ld)
 zephyr_linker_sources_ifdef(CONFIG_SOC_MPS3_CORSTONE310 RAM_SECTIONS mps3_corstone310.ld)
+zephyr_linker_sources_ifdef(CONFIG_SOC_MPS4_CORSTONE320 RAM_SECTIONS mps4_corstone320.ld)

tests/arch/arm/arm_mpu_pxn/mps4_corstone320.ld

@@ -0,0 +1,11 @@
+/*
+ * Copyright 2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+SECTION_DATA_PROLOGUE(.customramfunc, , )
+{
+	*(.customramfunc) * (".customramfunc.*")
+}
+GROUP_DATA_LINK_IN(DTCM, DTCM)

tests/arch/arm/arm_mpu_pxn/mps4_corstone320_fvp.overlay

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/memory-attr/memory-attr.h>
+#include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
+
+
+/ {
+	dtcm: dtcm@30000000 {
+		compatible = "zephyr,memory-region";
+		reg = <0x30000000 DT_SIZE_K(32)>;
+		zephyr,memory-region = "DTCM";
+		zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM_PXN) )>;
+	};
+};

tests/arch/arm/arm_mpu_pxn/testcase.yaml

@@ -7,6 +7,7 @@ common:
     - mps3/corstone300/an547
     - mps3/corstone300/fvp
     - mps3/corstone310/fvp
+    - mps4/corstone320/fvp
 tests:
   # To verify that region marked with PXN attribute can be executed from unprivileged code
   # and cannot be executed from privileged code