diff --git a/arch/arm64/src/imx9/imx9_dma_alloc.c b/arch/arm64/src/imx9/imx9_dma_alloc.c
index 172e2276db..1708e1ae69 100644
--- a/arch/arm64/src/imx9/imx9_dma_alloc.c
+++ b/arch/arm64/src/imx9/imx9_dma_alloc.c
@@ -89,11 +89,7 @@ int imx9_dma_alloc_init(void)
 {
   /* Allocate 64B granules with 64B alignment */
 
-  /* REVISIT: Use 256B granule size to get 8K maximum allocation. This is a
-   * limitation in the granule allocator itself.
-   */
-
-  dma_allocator = gran_initialize(g_dma_heap, sizeof(g_dma_heap), 8, 6);
+  dma_allocator = gran_initialize(g_dma_heap, sizeof(g_dma_heap), 6, 6);
 
   if (dma_allocator == NULL)
     {