diff --git a/include/configs/CPC45.h b/include/configs/CPC45.h
index 6fb8003..aae7d8c 100644
--- a/include/configs/CPC45.h
+++ b/include/configs/CPC45.h
@@ -496,14 +496,13 @@
 #define CFG_IDE_MAXDEVICE	1	/* max. 1 drive per IDE bus	*/
 
 #define CFG_ATA_IDE0_OFFSET	0x0000
-#define CONFIG_HMI10
 
 #define CFG_ATA_BASE_ADDR	CFG_PCMCIA_MEM_ADDR
 
 #define CFG_ATA_DATA_OFFSET	CFG_PCMCIA_MEM_SIZE
 
 /* Offset for normal register accesses	*/
-#define CFG_ATA_REG_OFFSET	CFG_PCMCIA_MEM_SIZE
+#define CFG_ATA_REG_OFFSET	(CFG_PCMCIA_MEM_SIZE + 0x320)
 
 /* Offset for alternate registers	*/
 #define CFG_ATA_ALT_OFFSET	(CFG_PCMCIA_MEM_SIZE + 0x400)