diff --git a/include/configs/pxa255_idp.h b/include/configs/pxa255_idp.h
index 0e884fc..4a9cadb 100644
--- a/include/configs/pxa255_idp.h
+++ b/include/configs/pxa255_idp.h
@@ -38,10 +38,11 @@
 #include <asm/arch/pxa-regs.h>
 
 /*
- * If we are developing, we might want to start armboot from ram
+ * If we are developing, we might want to start U-Boot from RAM
  * so we MUST NOT initialize critical regs like mem-timing ...
  */
-#define CONFIG_INIT_CRITICAL			/* undef for developing */
+#undef CONFIG_SKIP_LOWLEVEL_INIT			/* define for developing */
+#undef CONFIG_SKIP_RELOCATE_UBOOT			/* define for developing */
 
 /*
  * define the following to enable debug blinks.  A debug blink function
@@ -62,6 +63,7 @@
 #endif
 
 #define CONFIG_MMC		1
+#define CONFIG_DOS_PARTITION	1
 #define BOARD_LATE_INIT		1
 
 #undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff */
@@ -121,7 +123,6 @@
 #define CONFIG_CMD_FAT
 #define CONFIG_CMD_DHCP
 
-
 #define CONFIG_BOOTDELAY	3
 #define CONFIG_BOOTCOMMAND	"bootm 40000"
 #define CONFIG_BOOTARGS		"root=/dev/mtdblock2 rootfstype=cramfs console=ttyS0,115200"
@@ -332,7 +333,7 @@
 #define CFG_FLASH_CFI_DRIVER	1
 
 #define CFG_MONITOR_BASE	0
-#define CFG_MONITOR_LEN		0x40000
+#define CFG_MONITOR_LEN		PHYS_FLASH_SECT_SIZE
 
 #define CFG_MAX_FLASH_BANKS	1	/* max number of memory banks		*/
 #define CFG_MAX_FLASH_SECT	128  /* max number of sectors on one chip    */
@@ -347,7 +348,7 @@
 #define CFG_ENV_IS_IN_FLASH	1
  /* Addr of Environment Sector	*/
 #define CFG_ENV_ADDR		(PHYS_FLASH_1 + PHYS_FLASH_SIZE - 0x40000)
-#define CFG_ENV_SIZE		0x40000	/* Total Size of Environment Sector	*/
-#define	CFG_ENV_SECT_SIZE	0x40000
+#define CFG_ENV_SIZE		PHYS_FLASH_SECT_SIZE	/* Total Size of Environment Sector	*/
+#define	CFG_ENV_SECT_SIZE	(PHYS_FLASH_SECT_SIZE / 16)
 
 #endif	/* __CONFIG_H */
diff --git a/include/part.h b/include/part.h
index 29c0320..37b2b68 100644
--- a/include/part.h
+++ b/include/part.h
@@ -38,9 +38,9 @@
 #endif
 	lbaint_t		lba;	  	/* number of blocks */
 	unsigned long	blksz;		/* block size */
-	unsigned char	vendor [40+1]; 	/* IDE model, SCSI Vendor */
-	unsigned char	product[20+1];	/* IDE Serial no, SCSI product */
-	unsigned char	revision[8+1];	/* firmware revision */
+	char		vendor [40+1]; 	/* IDE model, SCSI Vendor */
+	char		product[20+1];	/* IDE Serial no, SCSI product */
+	char		revision[8+1];	/* firmware revision */
 	unsigned long	(*block_read)(int dev,
 				      unsigned long start,
 				      lbaint_t blkcnt,