diff --git a/arch/arm/src/arm/pg_macros.h b/arch/arm/src/arm/pg_macros.h
index a4d4dd5222..d30adeb106 100644
--- a/arch/arm/src/arm/pg_macros.h
+++ b/arch/arm/src/arm/pg_macros.h
@@ -93,6 +93,7 @@
 #  define MMU_L2_TEXTFLAGS      (PTE_TYPE_TINY|PTE_EXT_AP_UNO_SRO|PTE_CACHEABLE)
 #  define MMU_L1_DATAFLAGS      (PMD_TYPE_FINE|PMD_BIT4)
 #  define MMU_L2_DATAFLAGS      (PTE_TYPE_TINY|PTE_EXT_AP_UNO_SRW|PTE_CACHEABLE|PTE_BUFFERABLE)
+#  define MMU_L2_ALLOCFLAGS     (PTE_TYPE_TINY|PTE_EXT_AP_UNO_SRW)
 #  define MMU_L1_PGTABFLAGS     (PMD_TYPE_FINE|PMD_BIT4)
 #  define MMU_L2_PGTABFLAGS     (PTE_TYPE_TINY|PTE_EXT_AP_UNO_SRW)
 
diff --git a/arch/arm/src/arm/up_allocpage.c b/arch/arm/src/arm/up_allocpage.c
index 15309f61be..1db32592c6 100755
--- a/arch/arm/src/arm/up_allocpage.c
+++ b/arch/arm/src/arm/up_allocpage.c
@@ -133,12 +133,19 @@ static bool g_pgwrap;
  *  available pages are in-use (the typical case), then this function will
  *  select a page in-use, un-map it, and make it available.
  *
- *  NOTE 2: Allocating and filling a page is a two step process.  up_allocpage()
+ *  NOTE 2: If an in-use page is un-mapped, it may be necessary to flush the
+ *  instruction cache in some architectures.
+ *
+ *  NOTE 3: Allocating and filling a page is a two step process.  up_allocpage()
  *  allocates the page, and up_fillpage() fills it with data from some non-
  *  volatile storage device.  This distinction is made because up_allocpage()
  *  can probably be implemented in board-independent logic whereas up_fillpage()
  *  probably must be implemented as board-specific logic.
  *
+ *  NOTE 4: The initial mapping of vpage should be read-able and write-
+ *  able (but not cached).  No special actions will be required of
+ *  up_fillpage() in order to write into this allocated page.
+ *
  * Input Parameters:
  *   tcb - A reference to the task control block of the task that needs to
  *         have a page fill.  Architecture-specific logic can retrieve page
@@ -210,11 +217,12 @@ int up_allocpage(FAR _TCB *tcb, FAR void **vpage)
 
   /* Now setup up the new mapping.  Get a pointer to the L2 entry
    * corresponding to the new mapping.  Then set it map to the newly
-   * allocated page address.
+   * allocated page address.  The inital mapping is read/write but
+   * non-cached (MMU_L2_ALLOCFLAGS)
    */
 
   pte = up_va2pte(vaddr);
-  *pte = (paddr | MMU_L2_TEXTFLAGS);
+  *pte = (paddr | MMU_L2_ALLOCFLAGS);
 
   /* And save the new L1 index */