#!/bin/sh -e
  
  # Script to create header files and links to configure
  # U-Boot for a specific board.
  #

  # Parameters:  Target  Architecture  CPU  Board [VENDOR] [SOC]

  #

  # (C) 2002-2006 DENX Software Engineering, Wolfgang Denk <wd@denx.de>

  #
  
  APPEND=no	# Default: Create new config file

  BOARD_NAME=""	# Name to print in make output

  TARGETS=""

  arch=""
  cpu=""
  board=""
  vendor=""
  soc=""
  
  if [ \( $# -eq 2 \) -a \( "$1" = "-A" \) ] ; then
  	# Automatic mode
  	line=`egrep -i "^[[:space:]]*${2}[[:space:]]" boards.cfg` || {
  		echo "make: *** No rule to make target \`$2_config'.  Stop." >&2
  		exit 1
  	}
  
  	set ${line}
  	# add default board name if needed
  	[ $# = 3 ] && set ${line} ${1}
  fi

  while [ $# -gt 0 ] ; do
  	case "$1" in
  	--) shift ; break ;;
  	-a) shift ; APPEND=yes ;;

  	-n) shift ; BOARD_NAME="${1%_config}" ; shift ;;

  	-t) shift ; TARGETS="`echo $1 | sed 's:_: :g'` ${TARGETS}" ; shift ;;

  	*)  break ;;
  	esac
  done
  
  [ $# -lt 4 ] && exit 1

  [ $# -gt 6 ] && exit 1

  CONFIG_NAME="${1%_config}"
  
  [ "${BOARD_NAME}" ] || BOARD_NAME="${CONFIG_NAME}"
  
  arch="$2"
  cpu="$3"
  if [ "$4" = "-" ] ; then
  	board=${BOARD_NAME}
  else
  	board="$4"
  fi
  [ $# -gt 4 ] && [ "$5" != "-" ] && vendor="$5"
  [ $# -gt 5 ] && [ "$6" != "-" ] && soc="$6"
  
  if [ "${ARCH}" -a "${ARCH}" != "${arch}" ]; then
  	echo "Failed: \$ARCH=${ARCH}, should be '${arch}' for ${BOARD_NAME}" 1>&2

  	exit 1
  fi

  echo "Configuring for ${BOARD_NAME} board..."

  #
  # Create link to architecture specific headers
  #

  if [ "$SRCTREE" != "$OBJTREE" ] ; then
  	mkdir -p ${OBJTREE}/include
  	mkdir -p ${OBJTREE}/include2
  	cd ${OBJTREE}/include2
  	rm -f asm

  	ln -s ${SRCTREE}/arch/${arch}/include/asm asm
  	LNPREFIX=${SRCTREE}/arch/${arch}/include/asm/

  	cd ../include

  	rm -f asm

  	ln -s ${SRCTREE}/arch/${arch}/include/asm asm

  else
  	cd ./include
  	rm -f asm

  	ln -s ../arch/${arch}/include/asm asm

  fi

  rm -f asm/arch

  if [ -z "${soc}" ] ; then
  	ln -s ${LNPREFIX}arch-${cpu} asm/arch

  else

  	ln -s ${LNPREFIX}arch-${soc} asm/arch

  fi

  if [ "${arch}" = "arm" ] ; then

  	rm -f asm/proc
  	ln -s ${LNPREFIX}proc-armv asm/proc

  fi

  #
  # Create include file for Make
  #

  echo "ARCH   = ${arch}"  >  config.mk
  echo "CPU    = ${cpu}"   >> config.mk
  echo "BOARD  = ${board}" >> config.mk

  [ "${vendor}" ] && echo "VENDOR = ${vendor}" >> config.mk

  [ "${soc}"    ] && echo "SOC    = ${soc}"    >> config.mk

  # Assign board directory to BOARDIR variable

  if [ -z "${vendor}" ] ; then
      BOARDDIR=${board}

  else

      BOARDDIR=${vendor}/${board}

  fi

  #
  # Create board specific header file
  #
  if [ "$APPEND" = "yes" ]	# Append to existing config file
  then
  	echo >> config.h
  else
  	> config.h		# Create new config file
  fi
  echo "/* Automatically generated - do not edit */" >>config.h

  
  for i in ${TARGETS} ; do
  	echo "#define CONFIG_MK_${i} 1" >>config.h ;
  done

  cat << EOF >> config.h
  #define CONFIG_BOARDDIR board/$BOARDDIR
  #include <config_defaults.h>

  #include <configs/${CONFIG_NAME}.h>

  #include <asm/config.h>
  EOF

  
  exit 0