#!/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