diff --git a/nand.c b/nand.c
index 925d515..bd5cfcd 100644
--- a/nand.c
+++ b/nand.c
@@ -48,10 +48,6 @@ type *name = (type*)(((u32)(_al__##name)) + ((alignment) - (( \
 #define NAND_FLAGS_RD	0x2000
 #define NAND_FLAGS_ECC	0x1000
 
-#define	PAGE_SIZE			2048
-#define PAGE_SPARE_SIZE		64
-#define ECC_BUFFER_SIZE		(PAGE_SPARE_SIZE+16)
-#define NAND_MAX_PAGE		0x40000
 
 ipc_request current_request;
 
diff --git a/nand.h b/nand.h
index 171443e..6f009a8 100644
--- a/nand.h
+++ b/nand.h
@@ -4,6 +4,13 @@
 #include "types.h"
 #include "ipc.h"
 
+#define PAGE_SIZE			2048
+#define PAGE_SPARE_SIZE		64
+#define ECC_BUFFER_SIZE		(PAGE_SPARE_SIZE+16)
+#define ECC_BUFFER_ALLOC	(PAGE_SPARE_SIZE+32)
+#define BLOCK_SIZE			64
+#define NAND_MAX_PAGE		0x40000
+
 void nand_irq(void);
 
 void nand_send_command(u32 command, u32 bitmask, u32 flags, u32 num_bytes);