diff --git a/include/configs/walnut.h b/include/configs/walnut.h
index adc420b..e19c5f3 100644
--- a/include/configs/walnut.h
+++ b/include/configs/walnut.h
@@ -38,122 +38,44 @@
 #define CONFIG_WALNUT		1	/* ...on a WALNUT board		*/
 					/* ...and on a SYCAMORE board	*/
 
+/*
+ * Include common defines/options for all AMCC eval boards
+ */
+#define CONFIG_HOSTNAME		walnut
+#include "amcc-common.h"
+
 #define CONFIG_BOARD_EARLY_INIT_F 1	/* Call board_early_init_f	*/
 
 #define CONFIG_SYS_CLK_FREQ	33333333 /* external frequency to pll	*/
 
-#define CONFIG_PREBOOT	"echo;" \
-	"echo Type \\\"run flash_nfs\\\" to mount root filesystem over NFS;" \
-	"echo"
-
-#undef	CONFIG_BOOTARGS
-
-#define CONFIG_EXTRA_ENV_SETTINGS					\
-	"netdev=eth0\0"							\
-	"hostname=walnut\0"						\
-	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
-		"nfsroot=${serverip}:${rootpath}\0"			\
-	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
-	"addip=setenv bootargs ${bootargs} "				\
-		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"	\
-		":${hostname}:${netdev}:off panic=1\0"			\
-	"addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
-	"flash_nfs=run nfsargs addip addtty;"				\
-		"bootm ${kernel_addr}\0"				\
-	"flash_self=run ramargs addip addtty;"				\
-		"bootm ${kernel_addr} ${ramdisk_addr}\0"		\
-	"net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;"	\
-		"bootm\0"						\
-	"rootpath=/opt/eldk/ppc_4xx\0"					\
-	"bootfile=/tftpboot/walnut/uImage\0"				\
+/*
+ * Default environment variables
+ */
+#define	CONFIG_EXTRA_ENV_SETTINGS					\
+	CONFIG_AMCC_DEF_ENV						\
+	CONFIG_AMCC_DEF_ENV_POWERPC					\
+	CONFIG_AMCC_DEF_ENV_PPC_OLD					\
+	CONFIG_AMCC_DEF_ENV_NOR_UPD					\
 	"kernel_addr=fff80000\0"					\
 	"ramdisk_addr=fff80000\0"					\
-	"initrd_high=30000000\0"					\
-	"load=tftp 100000 /tftpboot/walnut/u-boot.bin\0"		\
-	"update=protect off fffc0000 ffffffff;era fffc0000 ffffffff;"	\
-		"cp.b 100000 fffc0000 40000;"				\
-		"setenv filesize;saveenv\0"				\
-	"upd=run load update\0"						\
 	""
-#define CONFIG_BOOTCOMMAND	"run net_nfs"
 
-#if 0
-#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
-#else
-#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
-#endif
-
-#define CONFIG_BAUDRATE		115200
-
-#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
-#define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change	*/
-
-#define CONFIG_MII		1	/* MII PHY management		*/
 #define CONFIG_PHY_ADDR		1	/* PHY address			*/
-
-#define CFG_RX_ETH_BUFFER	16	/* use 16 rx buffer on 405 emac */
 #define CONFIG_HAS_ETH0		1
 
-#define CONFIG_NETCONSOLE		/* include NetConsole support	*/
-#define CONFIG_NET_MULTI		/* needed for NetConsole	*/
-
 #define CONFIG_RTC_DS174x	1	/* use DS1743 RTC in Walnut	*/
 
-
 /*
- * BOOTP options
+ * Commands additional to the ones defined in amcc-common.h
  */
-#define CONFIG_BOOTP_BOOTFILESIZE
-#define CONFIG_BOOTP_BOOTPATH
-#define CONFIG_BOOTP_GATEWAY
-#define CONFIG_BOOTP_HOSTNAME
-
-
-/*
- * Command line configuration.
- */
-#include <config_cmd_default.h>
-
-#define CONFIG_CMD_ASKENV
 #define CONFIG_CMD_DATE
-#define CONFIG_CMD_DHCP
-#define CONFIG_CMD_DIAG
-#define CONFIG_CMD_EEPROM
-#define CONFIG_CMD_ELF
-#define CONFIG_CMD_I2C
-#define CONFIG_CMD_IRQ
-#define CONFIG_CMD_MII
-#define CONFIG_CMD_NET
-#define CONFIG_CMD_NFS
 #define CONFIG_CMD_PCI
-#define CONFIG_CMD_PING
-#define CONFIG_CMD_REGINFO
 #define CONFIG_CMD_SDRAM
 #define CONFIG_CMD_SNTP
 
-
-#undef CONFIG_WATCHDOG			/* watchdog disabled		*/
-
 #define CONFIG_SPD_EEPROM      1       /* use SPD EEPROM for setup    */
 
 /*
- * Miscellaneous configurable options
- */
-#define CFG_LONGHELP			/* undef to save memory		*/
-#define CFG_PROMPT	"=> "		/* Monitor Command Prompt	*/
-#if defined(CONFIG_CMD_KGDB)
-#define CFG_CBSIZE	1024		/* Console I/O Buffer Size	*/
-#else
-#define CFG_CBSIZE	256		/* Console I/O Buffer Size	*/
-#endif
-#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
-#define CFG_MAXARGS	16		/* max number of command args	*/
-#define CFG_BARGSIZE	CFG_CBSIZE	/* Boot Argument Buffer Size	*/
-
-#define CFG_MEMTEST_START	0x0400000	/* memtest works on	*/
-#define CFG_MEMTEST_END		0x0C00000	/* 4 ... 12 MB in DRAM	*/
-
-/*
  * If CFG_EXT_SERIAL_CLOCK, then the UART divisor is 1.
  * If CFG_405_UART_ERRATA_59, then UART divisor is 31.
  * Otherwise, UART divisor is determined by CPU Clock and CFG_BASE_BAUD value.
@@ -167,29 +89,11 @@
 #undef	CFG_405_UART_ERRATA_59	       /* 405GP/CR Rev. D silicon */
 #define CFG_BASE_BAUD	    691200
 
-/* The following table includes the supported baudrates */
-#define CFG_BAUDRATE_TABLE  \
-    {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
-
-#define CFG_LOAD_ADDR		0x100000	/* default load address */
-#define CFG_EXTBDINFO		1	/* To use extended board_into (bd_t) */
-
-#define CFG_HZ		1000		/* decrementer freq: 1 ms ticks */
-
-#define CONFIG_CMDLINE_EDITING	1	/* add command line history	*/
-#define CONFIG_LOOPW		1	/* enable loopw command		*/
-#define CONFIG_MX_CYCLIC        1       /* enable mdc/mwc commands      */
-#define CONFIG_ZERO_BOOTDELAY_CHECK	/* check for keypress on bootdelay==0 */
-#define CONFIG_VERSION_VARIABLE 1	/* include version env variable */
-
 /*-----------------------------------------------------------------------
  * I2C stuff
  *-----------------------------------------------------------------------
  */
-#define CONFIG_HARD_I2C		1	/* I2C with hardware support	*/
-#undef	CONFIG_SOFT_I2C			/* I2C bit-banged		*/
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
-#define CFG_I2C_SLAVE		0x7F
 
 #define CFG_I2C_MULTI_EEPROMS
 #define CFG_I2C_EEPROM_ADDR	(0xa8>>1)
@@ -224,13 +128,8 @@
 /*-----------------------------------------------------------------------
  * Start addresses for the final memory configuration
  * (Set up by the startup code)
- * Please note that CFG_SDRAM_BASE _must_ start at 0
  */
-#define CFG_SDRAM_BASE		0x00000000
 #define CFG_FLASH_BASE		0xFFF80000
-#define CFG_MONITOR_LEN		(256 * 1024)	/* Reserve 256 kB for Monitor	*/
-#define CFG_MALLOC_LEN		(128 * 1024)	/* Reserve 128 kB for malloc()	*/
-#define CFG_MONITOR_BASE	(-CFG_MONITOR_LEN)
 
 /*
  * Define here the location of the environment variables (FLASH or NVRAM).
@@ -243,13 +142,6 @@
 #define CFG_ENV_IS_IN_NVRAM	1	/* use NVRAM for environment vars	*/
 #endif
 
-/*
- * For booting Linux, the board info and command line data
- * have to be in the first 8 MB of memory, since this is
- * the maximum mapped by the Linux kernel during initialization.
- */
-#define CFG_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux */
-
 /*-----------------------------------------------------------------------
  * FLASH organization
  */
@@ -335,21 +227,4 @@
  */
 #define SPD_EEPROM_ADDRESS	0x50
 
-/*
- * Internal Definitions
- *
- * Boot Flags
- */
-#define BOOTFLAG_COLD	0x01		/* Normal Power-On: Boot from FLASH	*/
-#define BOOTFLAG_WARM	0x02		/* Software reboot			*/
-
-#if defined(CONFIG_CMD_KGDB)
-#define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */
-#define CONFIG_KGDB_SER_INDEX	2	/* which serial port to use */
-#endif
-
-/* pass open firmware flat tree */
-#define CONFIG_OF_LIBFDT	1
-#define CONFIG_OF_BOARD_SETUP	1
-
 #endif	/* __CONFIG_H */