diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index d51ba66..ca2d44f 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -185,6 +185,7 @@
 	DCACHE_OFF = 0x12,
 	DCACHE_WRITETHROUGH = 0x1a,
 	DCACHE_WRITEBACK = 0x1e,
+	DCACHE_WRITEALLOC = 0x16,
 };
 
 /* Size of an MMU section */