diff --git a/soc/arm/qemu_cortex_a53/mmu_regions.c b/soc/arm/qemu_cortex_a53/mmu_regions.c
index 52413f6736e..e362738ec60 100644
--- a/soc/arm/qemu_cortex_a53/mmu_regions.c
+++ b/soc/arm/qemu_cortex_a53/mmu_regions.c
@@ -12,13 +12,13 @@
 static const struct arm_mmu_region mmu_regions[] = {
 
 	MMU_REGION_FLAT_ENTRY("GIC",
-			      DT_INST_0_ARM_GIC_BASE_ADDRESS_0,
-			      DT_INST_0_ARM_GIC_SIZE_0 * 2,
+			      DT_REG_ADDR_BY_IDX(DT_INST(0, arm_gic), 0),
+			      DT_REG_SIZE_BY_IDX(DT_INST(0, arm_gic), 0) * 2,
 			      MT_DEVICE_nGnRnE | MT_RW | MT_SECURE),
 
 	MMU_REGION_FLAT_ENTRY("UART",
-			      DT_INST_0_ARM_PL011_BASE_ADDRESS,
-			      DT_INST_0_ARM_PL011_SIZE,
+			      DT_REG_ADDR(DT_INST(0, arm_pl011)),
+			      DT_REG_SIZE(DT_INST(0, arm_pl011)),
 			      MT_DEVICE_nGnRnE | MT_RW | MT_SECURE),
 
 	MMU_REGION_FLAT_ENTRY("SRAM",