diff --git a/board/avionic-design/common/tamonten.c b/board/avionic-design/common/tamonten.c
index f23b657..d9ecd23 100644
--- a/board/avionic-design/common/tamonten.c
+++ b/board/avionic-design/common/tamonten.c
@@ -1,7 +1,7 @@
 /*
  *  (C) Copyright 2010,2011
  *  NVIDIA Corporation <www.nvidia.com>
- *  (C) Copyright 2011
+ *  (C) Copyright 2011-2012
  *  Avionic Design GmbH <www.avionic-design.de>
  *
  * See file CREDITS for list of people who contributed to this
@@ -36,25 +36,17 @@
 #include <asm/arch/pinmux.h>
 #include <asm/arch/uart.h>
 #include <asm/arch/mmc.h>
-#include "tamonten.h"
 
 #ifdef CONFIG_TEGRA2_MMC
 #include <mmc.h>
 #endif
 
-DECLARE_GLOBAL_DATA_PTR;
-
-const struct tegra2_sysinfo sysinfo = {
-	CONFIG_TEGRA2_BOARD_STRING
-};
-
 /*
- * Routine: timer_init
- * Description: init the timestamp and lastinc value
+ * Routine: gpio_config_uart
+ * Description: Does nothing on Tamonten - no conflict w/SPI.
  */
-int timer_init(void)
+void gpio_config_uart(void)
 {
-	return 0;
 }
 
 #ifdef CONFIG_TEGRA2_MMC
@@ -65,46 +57,19 @@
 static void pin_mux_mmc(void)
 {
 	funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
-}
-#endif
-
-/*
- * Routine: board_init
- * Description: Early hardware init.
- */
-int board_init(void)
-{
-	clock_init();
-	clock_verify();
-
-	/* boot param addr */
-	gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
-
-	return 0;
+	/* for CD GPIO PH2 */
+	pinmux_tristate_disable(PINGRP_ATD);
 }
 
-#ifdef CONFIG_TEGRA2_MMC
 /* this is a weak define that we are overriding */
 int board_mmc_init(bd_t *bd)
 {
-	debug("board_mmc_init called\n");
 	/* Enable muxes, etc. for SDMMC controllers */
 	pin_mux_mmc();
-	gpio_config_mmc();
 
-	debug("board_mmc_init: init eMMC\n");
-	/* init dev 0, eMMC chip, with 4-bit bus */
+	/* init dev 0, SD slot, with 4-bit bus */
 	tegra2_mmc_init(0, 4, -1, GPIO_PH2);
 
 	return 0;
 }
 #endif
-
-#ifdef CONFIG_BOARD_EARLY_INIT_F
-int board_early_init_f(void)
-{
-	/* Initialize selected UARTs */
-	board_init_uart_f();
-	return 0;
-}
-#endif /* EARLY_INIT */
diff --git a/board/avionic-design/common/tamonten.h b/board/avionic-design/common/tamonten.h
deleted file mode 100644
index 0e60b0f..0000000
--- a/board/avionic-design/common/tamonten.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- *  (C) Copyright 2010,2011
- *  NVIDIA Corporation <www.nvidia.com>
- *  (C) Copyright 2011
- *  Avionic Design GmbH <www.avionic-design.de>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#ifndef _TAMONTEN_H_
-#define _TAMONTEN_H_
-
-void tegra2_start(void);
-void gpio_config_mmc(void);
-
-#endif /* TAMONTEN_H */
diff --git a/board/avionic-design/medcom/Makefile b/board/avionic-design/medcom/Makefile
index b0c318c..d96d043 100644
--- a/board/avionic-design/medcom/Makefile
+++ b/board/avionic-design/medcom/Makefile
@@ -1,7 +1,7 @@
 #
 #  (C) Copyright 2010,2011
 #  NVIDIA Corporation <www.nvidia.com>
-#  (C) Copyright 2011
+#  (C) Copyright 2011,2012
 #  Avionic Design GmbH <www.avionic-design.de>
 #
 #  See file CREDITS for list of people who contributed to this
@@ -26,12 +26,12 @@
 include $(TOPDIR)/config.mk
 
 ifneq ($(OBJTREE),$(SRCTREE))
-$(shell mkdir -p $(obj)../common)
+$(shell mkdir -p $(obj)../common $(obj)../../nvidia/common)
 endif
 
 LIB	= $(obj)lib$(BOARD).o
 
-COBJS	:= $(BOARD).o
+COBJS	:= ../../nvidia/common/board.o
 COBJS	+= ../common/tamonten.o
 
 SRCS	:= $(COBJS:.o=.c)
diff --git a/board/avionic-design/medcom/medcom.c b/board/avionic-design/medcom/medcom.c
deleted file mode 100644
index 42c8094..0000000
--- a/board/avionic-design/medcom/medcom.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- *  (C) Copyright 2010,2011
- *  NVIDIA Corporation <www.nvidia.com>
- *  (C) Copyright 2011
- *  Avionic Design GmbH <www.avionic-design.de>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/gpio.h>
-#include <asm/arch/tegra2.h>
-#ifdef CONFIG_TEGRA2_MMC
-#include <mmc.h>
-#endif
-
-#ifdef CONFIG_TEGRA2_MMC
-/*
- * Routine: gpio_config_mmc
- * Description: Set GPIOs for SD card
- */
-void gpio_config_mmc(void)
-{
-	/* configure pin as input for card detect */
-	gpio_request(GPIO_PH2, "SD4 CD");
-	gpio_direction_input(GPIO_PH2);
-}
-#endif
diff --git a/board/avionic-design/plutux/Makefile b/board/avionic-design/plutux/Makefile
index b0c318c..d96d043 100644
--- a/board/avionic-design/plutux/Makefile
+++ b/board/avionic-design/plutux/Makefile
@@ -1,7 +1,7 @@
 #
 #  (C) Copyright 2010,2011
 #  NVIDIA Corporation <www.nvidia.com>
-#  (C) Copyright 2011
+#  (C) Copyright 2011,2012
 #  Avionic Design GmbH <www.avionic-design.de>
 #
 #  See file CREDITS for list of people who contributed to this
@@ -26,12 +26,12 @@
 include $(TOPDIR)/config.mk
 
 ifneq ($(OBJTREE),$(SRCTREE))
-$(shell mkdir -p $(obj)../common)
+$(shell mkdir -p $(obj)../common $(obj)../../nvidia/common)
 endif
 
 LIB	= $(obj)lib$(BOARD).o
 
-COBJS	:= $(BOARD).o
+COBJS	:= ../../nvidia/common/board.o
 COBJS	+= ../common/tamonten.o
 
 SRCS	:= $(COBJS:.o=.c)
diff --git a/board/avionic-design/plutux/plutux.c b/board/avionic-design/plutux/plutux.c
deleted file mode 100644
index 42c8094..0000000
--- a/board/avionic-design/plutux/plutux.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- *  (C) Copyright 2010,2011
- *  NVIDIA Corporation <www.nvidia.com>
- *  (C) Copyright 2011
- *  Avionic Design GmbH <www.avionic-design.de>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/gpio.h>
-#include <asm/arch/tegra2.h>
-#ifdef CONFIG_TEGRA2_MMC
-#include <mmc.h>
-#endif
-
-#ifdef CONFIG_TEGRA2_MMC
-/*
- * Routine: gpio_config_mmc
- * Description: Set GPIOs for SD card
- */
-void gpio_config_mmc(void)
-{
-	/* configure pin as input for card detect */
-	gpio_request(GPIO_PH2, "SD4 CD");
-	gpio_direction_input(GPIO_PH2);
-}
-#endif