diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h
index b14093f..60e2450 100644
--- a/include/configs/km/km_arm.h
+++ b/include/configs/km/km_arm.h
@@ -57,6 +57,13 @@
 #define CONFIG_CMD_SF
 #define CONFIG_SOFT_I2C		/* I2C bit-banged	*/
 
+#if defined CONFIG_KM_ENV_IS_IN_SPI_NOR
+#define CONFIG_ENV_SPI_BUS		0
+#define CONFIG_ENV_SPI_CS		0
+#define CONFIG_ENV_SPI_MAX_HZ		5000000
+#define CONFIG_ENV_SPI_MODE		SPI_MODE_3
+#endif
+
 #include "asm/arch/config.h"
 
 #define CONFIG_SYS_TEXT_BASE	0x07d00000	/* code address before reloc */
@@ -211,6 +218,15 @@
 /*
  *  Environment variables configurations
  */
+#if defined CONFIG_KM_ENV_IS_IN_SPI_NOR
+#define CONFIG_ENV_IS_IN_SPI_FLASH  /* use SPI-Flash for environment vars */
+#define CONFIG_ENV_OFFSET		0xc0000     /* no bracets! */
+#define CONFIG_ENV_SIZE			0x02000     /* Size of Environment */
+#define CONFIG_ENV_SECT_SIZE		0x10000
+#define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET + \
+					CONFIG_ENV_SECT_SIZE)
+#define CONFIG_ENV_TOTAL_SIZE		0x20000     /* no bracets! */
+#else
 #define CONFIG_ENV_IS_IN_EEPROM		/* use EEPROM for environment vars */
 #define CONFIG_SYS_DEF_EEPROM_ADDR	0x50
 #define CONFIG_ENV_EEPROM_IS_ON_I2C
@@ -218,11 +234,11 @@
 #define CONFIG_ENV_OFFSET		0x0 /* no bracets! */
 #define CONFIG_ENV_SIZE			(0x2000 - CONFIG_ENV_OFFSET)
 #define CONFIG_I2C_ENV_EEPROM_BUS	KM_ENV_BUS "\0"
-
-/* offset redund: (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE) */
-#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
 #define CONFIG_ENV_OFFSET_REDUND	0x2000 /* no bracets! */
 #define CONFIG_ENV_SIZE_REDUND		(CONFIG_ENV_SIZE)
+#endif
+
+#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
 
 #define CONFIG_SPI_FLASH
 #define CONFIG_SPI_FLASH_STMICRO
@@ -248,17 +264,27 @@
 		"sf probe 0;sf erase 0 +${filesize};"			\
 		"sf write ${load_addr_r} 0 ${filesize};\0"
 
-/*
- * Default environment variables
- */
-#define CONFIG_EXTRA_ENV_SETTINGS					\
-	CONFIG_KM_DEF_ENV						\
+#if defined CONFIG_KM_ENV_IS_IN_SPI_NOR
+#define CONFIG_KM_NEW_ENV						\
+	"newenv=sf probe 0;"						\
+		"sf erase " xstr(CONFIG_ENV_OFFSET) " "			\
+		xstr(CONFIG_ENV_TOTAL_SIZE)"\0"
+#else
+#define CONFIG_KM_NEW_ENV						\
 	"newenv=setenv addr 0x100000 && "				\
 		"i2c dev 1; mw.b ${addr} 0 4 && "			\
 		"eeprom write " xstr(CONFIG_SYS_DEF_EEPROM_ADDR)	\
 		" ${addr} " xstr(CONFIG_ENV_OFFSET) " 4 && "		\
 		"eeprom write " xstr(CONFIG_SYS_DEF_EEPROM_ADDR)	\
-		" ${addr} " xstr(CONFIG_ENV_OFFSET_REDUND) " 4\0"	\
+		" ${addr} " xstr(CONFIG_ENV_OFFSET_REDUND) " 4\0"
+#endif
+
+/*
+ * Default environment variables
+ */
+#define CONFIG_EXTRA_ENV_SETTINGS					\
+	CONFIG_KM_DEF_ENV						\
+	CONFIG_KM_NEW_ENV						\
 	"arch=arm\0"							\
 	"EEprom_ivm=" KM_IVM_BUS "\0"					\
 	""
diff --git a/include/configs/km_kirkwood.h b/include/configs/km_kirkwood.h
index f639edc..34dd0a6 100644
--- a/include/configs/km_kirkwood.h
+++ b/include/configs/km_kirkwood.h
@@ -6,8 +6,9 @@
  * (C) Copyright 2009
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
- * (C) Copyright 2011
- * Holger Brunck, Keymile GmbH Hannover, holger.brunck@keymile.de
+ * (C) Copyright 2011-2012
+ * Holger Brunck, Keymile GmbH Hannover, holger.brunck@keymile.com
+ * Valentin Longchamp, Keymile AG, valentin.longchamp@keymile.com
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -36,23 +37,67 @@
 #ifndef _CONFIG_KM_KIRKWOOD_H
 #define _CONFIG_KM_KIRKWOOD_H
 
-/* include common defines/options for all arm based Keymile boards */
-#include "km/km_arm.h"
-
-/*
- * Version number information
- */
 #if defined(CONFIG_KM_KIRKWOOD)
-#define CONFIG_IDENT_STRING	"\nKeymile Kirkwood"
+#define CONFIG_IDENT_STRING		"\nKeymile Kirkwood"
 #undef  CONFIG_KIRKWOOD_PCIE_INIT
+#define KM_IVM_BUS			"pca9544a:70:9"	/* I2C2 (Mux-Port 1)*/
 #elif defined(CONFIG_KM_KIRKWOOD_PCI)
-#define CONFIG_IDENT_STRING	"\nKeymile Kirkwood PCI"
+#define CONFIG_IDENT_STRING		"\nKeymile Kirkwood PCI"
+#define KM_IVM_BUS			"pca9544a:70:9"	/* I2C2 (Mux-Port 1)*/
+/* KM_NUSA */
+#elif defined(CONFIG_KM_NUSA)
+#define KM_IVM_BUS			"pca9547:70:9"	/* I2C2 (Mux-Port 1)*/
+#define CONFIG_IDENT_STRING		"\nKeymile NUSA"
+#undef CONFIG_SYS_KWD_CONFIG
+#define CONFIG_SYS_KWD_CONFIG \
+		$(SRCTREE)/$(CONFIG_BOARDDIR)/kwbimage_128M16_1.cfg
+#define CONFIG_KM_ENV_IS_IN_SPI_NOR
+#define CONFIG_KM_FPGA_CONFIG
+#define CONFIG_KM_PIGGY4_88E6352
+
+#else
+#error ("Board unsupported")
 #endif
 
+/* include common defines/options for all arm based Keymile boards */
+#include "km/km_arm.h"
+
 #define CONFIG_HOSTNAME			km_kirkwood
 
-#define KM_IVM_BUS	"pca9544a:70:9"	/* I2C2 (Mux-Port 1)*/
+#ifndef CONFIG_KM_ENV_IS_IN_SPI_NOR
 #define KM_ENV_BUS	"pca9544a:70:d"	/* I2C2 (Mux-Port 5)*/
+#endif
+
+#if defined(CONFIG_KM_PIGGY4_88E6352)
+/*
+ * Some keymile boards like mgcoge5un & nusa1 have their PIGGY4 connected via
+ * an Marvell 88E6352 simple switch.
+ * In this case we have to change the default settings for the etherent mac.
+ * There is NO ethernet phy. The ARM and Switch are conencted directly over
+ * RGMII in MAC-MAC mode
+ * In this case 1GBit full duplex and autoneg off
+ */
+#define PORT_SERIAL_CONTROL_VALUE		( \
+	MVGBE_FORCE_LINK_PASS			    | \
+	MVGBE_DIS_AUTO_NEG_FOR_DUPLX		| \
+	MVGBE_DIS_AUTO_NEG_FOR_FLOW_CTRL	| \
+	MVGBE_ADV_NO_FLOW_CTRL			    | \
+	MVGBE_FORCE_FC_MODE_NO_PAUSE_DIS_TX	| \
+	MVGBE_FORCE_BP_MODE_NO_JAM		    | \
+	(1 << 9) /* Reserved bit has to be 1 */	| \
+	MVGBE_DO_NOT_FORCE_LINK_FAIL		| \
+	MVGBE_DIS_AUTO_NEG_SPEED_GMII		| \
+	MVGBE_DTE_ADV_0				        | \
+	MVGBE_MIIPHY_MAC_MODE			    | \
+	MVGBE_AUTO_NEG_NO_CHANGE		    | \
+	MVGBE_MAX_RX_PACKET_1552BYTE		| \
+	MVGBE_CLR_EXT_LOOPBACK			    | \
+	MVGBE_SET_FULL_DUPLEX_MODE		    | \
+	MVGBE_EN_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX	|\
+	MVGBE_SET_GMII_SPEED_TO_1000	    |\
+	MVGBE_SET_MII_SPEED_TO_100)
+
+#endif
 
 /* GPIO Pin from kirkwood connected to PROGRAM_B pin of the xilinx FPGA */
 #define KM_XLX_PROGRAM_B_PIN    39