openwrt/target/linux/layerscape/image/gen_sdcard_head_img.sh

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright 2018 NXP
set -x
[ $# -eq 5 ] || {
echo "SYNTAX: $0 <file> <kernel part offset> <kernel size> <rootfs part offset> <rootfs size>"
exit 1
}
OUTPUT="$1"
KERNELOFFSET="$(($2 * 1024))"
KERNELSIZE="$3"
ROOTFSOFFSET="$(($4 * 1024))"
ROOTFSSIZE="$5"
head=4
sect=63
set $(ptgen -o $OUTPUT -h $head -s $sect -t 83 -p ${KERNELSIZE}M@${KERNELOFFSET} -p ${ROOTFSSIZE}M@${ROOTFSOFFSET})