diff --git a/arch/arm/src/imxrt/imxrt_edma_ver2.c b/arch/arm/src/imxrt/imxrt_edma_ver2.c
index 1be42a936ec..4dc15d315e7 100644
--- a/arch/arm/src/imxrt/imxrt_edma_ver2.c
+++ b/arch/arm/src/imxrt/imxrt_edma_ver2.c
@@ -87,7 +87,11 @@
  * invalidation.
  */
 
-#define EDMA_ALIGN        ARMV7M_DCACHE_LINESIZE
+#ifdef CONFIG_ARCH_CORTEXM33
+#  define EDMA_ALIGN      ARMV8M_DCACHE_LINESIZE
+#else
+#  define EDMA_ALIGN      ARMV7M_DCACHE_LINESIZE
+#endif
 #define EDMA_ALIGN_MASK   (EDMA_ALIGN - 1)
 #define EDMA_ALIGN_UP(n)  (((n) + EDMA_ALIGN_MASK) & ~EDMA_ALIGN_MASK)