--- uc-origs/uClinux-2.4.27-uc1/drivers/block/blkmem.c	2004-12-12 21:48:46.000000000 +0100
+++ uClinux-2.4.27-uc1/drivers/block/blkmem.c	2005-02-11 18:35:19.000000000 +0100
@@ -44,7 +44,11 @@
 #define MAJOR_NR BLKMEM_MAJOR
 
 #if defined(CONFIG_ARCH_CX821XX)
+#ifdef CONFIG_BD_TIBURON
+#define	FIXED_ROMARRAY	0x4b0000
+#else
 #define	FIXED_ROMARRAY	0x500000
+#endif
 #elif defined(CONFIG_ARCH_CNXT)
 #define	CONFIG_FLASH_SNAPGEAR	1
 #define DEVEL  1 /* everything in SDRAM for now */