diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 2372b03..017defa 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -585,6 +585,14 @@
 
 source "mm/Kconfig"
 
+config LARGE_ALLOCS
+	bool "Allow allocating large blocks (> 1MB) of memory"
+	help
+	  Allow the slab memory allocator to keep chains for very large
+	  memory sizes - upto 32MB. You may need this if your system has
+	  a lot of RAM, and you need to able to allocate very large
+	  contiguous chunks. If unsure, say N.
+
 config BFIN_DMA_5XX
 	bool "Enable DMA Support"
 	depends on (BF533 || BF532 || BF531 || BF537 || BF536 || BF534 || BF561 || BF54x)