#!/bin/sh

. /env/config

if [ x$kernel_loc = xnet ]; then
	kernel_loc=tftp
fi

if [ x$1 = xnand ]; then
	rootfs_loc=nand
	kernel_loc=nand
elif [ x$1 = xnor ]; then
	rootfs_loc=nor
	kernel_loc=nor
elif [ x$1 = xnfs ]; then
	rootfs_loc=net
	kernel_loc=nfs
elif [ x$1 = xtftp ]; then
	rootfs_loc=net
	kernel_loc=tftp
elif [ x$1 = xdisk ]; then
	rootfs_loc=disk
	kernel_loc=disk
fi

if [ x$ip = xdhcp ]; then
	bootargs="$bootargs ip=dhcp"
elif [ x$ip = xnone ]; then
	bootargs="$bootargs ip=none"
else
	bootargs="$bootargs ip=$eth0.ipaddr:$eth0.serverip:$eth0.gateway:$eth0.netmask::eth0:"
fi


if [ x$rootfs_loc = xnet ]; then
	bootargs="$bootargs root=/dev/nfs nfsroot=$nfsroot,v3,tcp noinitrd"
elif [ x$rootfs_loc = xdisk ]; then
	bootargs="$bootargs root=/dev/$rootfs_part_linux_dev rootfstype=$rootfs_type noinitrd rootwait"
elif [ x$rootfs_loc = xinitrd ]; then
	bootargs="$bootargs root=/dev/ram0 rdinit=/sbin/init"
else
	if [ x$rootfs_loc = xnand ]; then
		rootfs_mtdblock=$rootfs_mtdblock_nand
	else
		rootfs_mtdblock=$rootfs_mtdblock_nor
	fi

	if [ x$rootfs_type = xubifs ]; then
		if [ -z $ubiroot ]; then
			ubiroot="root"
		fi
		bootargs="$bootargs root=ubi0:$ubiroot ubi.mtd=$rootfs_mtdblock"
	else
		bootargs="$bootargs root=/dev/mtdblock$rootfs_mtdblock"
	fi

	bootargs="$bootargs rootfstype=$rootfs_type noinitrd"
fi

if [ -n $nor_parts ]; then
	mtdparts="${mtdparts}physmap-flash.0:${nor_parts}"
fi

if [ -n $nand_parts ]; then
	if [ -n ${mtdparts} ]; then
		mtdparts="${mtdparts};"
	fi
	mtdparts="${mtdparts}${nand_device}:${nand_parts}"
fi

if [ -n $mtdparts ]; then
	bootargs="${bootargs} mtdparts=${mtdparts}"
fi

if [ x$kernel_loc = xnfs -o x$kernel_loc = xtftp ]; then
	if [ x$ip = xdhcp ]; then
		dhcp
	fi
	kdev=/image
	$kernel_loc $kernelimage $kdev || exit 1
elif [ x$kernel_loc = xnor ]; then
	kdev="/dev/nor0.kernel"
elif [ x$kernel_loc = xnand ]; then
	kdev="/dev/nand0.kernel.bb"
elif [ x$kernel_loc = xdisk ]; then
	kdev="/dev/$kernel_part"
else
	echo "error: set kernel_loc to one of 'tftp', 'nfs', 'nand', 'nor' or 'disk'"
	exit 1
fi

echo "booting kernel from $kdev"

bootm $bootm_opt $kdev