#!/bin/sh
# based on gabors ralink wisoc implementation

rt2x00_eeprom_die() {
	echo "rt2x00 eeprom: " "$*"
	exit 1
}

rt2x00_eeprom_extract() {
	local part=$1
	local offset=$2
	local count=$3
	local swab=$4
	local mtd

	. /lib/functions.sh

	mtd=$(find_mtd_part $part)
	[ -n "$mtd" ] || \
		rt2x00_eeprom_die "no mtd device found for partition $part"

	if [ $swab -gt 0 ]; then
		dd if=$mtd of=/lib/firmware/$FIRMWARE bs=2 skip=$offset count=$count conv=swab || \
			rt2x00_eeprom_die "failed to extract from $mtd"
	else
		dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count || \
			rt2x00_eeprom_die "failed to extract from $mtd"
	fi
}

[ -e /lib/firmware/$FIRMWARE ] && exit 0
. /lib/functions/lantiq.sh

case "$FIRMWARE" in
"RT2860.eeprom" )
	local board=$(lantiq_board_name)
	case $board in
	ARV7510PW22|ARV7519PW|ARV752DPW|ARV752DPW22)
		rt2x00_eeprom_extract "board_config" 520 256 1
		;;
	ARV7525PW)
		rt2x00_eeprom_extract "board_config" 1040 512 0
		;;
	*)
		rt2x00_eeprom_die "board $board is not supported yet"
		;;
	esac
	;;
esac