Replace Chromebook mentions with CrOS, that is more generic

Not all CrOS devices are Chromebooks (laptops) or run on ARM, not all RK3288
CrOS devices are Chromebooks, either.

We want to support more CrOS devices, including some that are not Chromebooks,
such as the ASUS Chromebit!

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

1 files changed, 96 insertions, 0 deletions

diff --git a/resources/libreboot/install/depthcharge/cros-flash-replace b/resources/libreboot/install/depthcharge/cros-flash-replace
new file mode 100755
index 00000000..4ad3fabd
--- /dev/null
+++ b/resources/libreboot/install/depthcharge/cros-flash-replace
@@ -0,0 +1,96 @@
+#!/bin/bash
+
+#  replace the requested parts in the flash image with separate parts images
+#
+#	Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+[ "x${DEBUG+set}" = 'xset' ] && set -v
+
+regex="\([0-9a-fA-F]*\):\([0-9a-fA-F]*\)[[:space:]]*\(.*\)"
+block=256
+layout="layout.txt"
+flash=$1
+
+shift 1
+
+if [ ! -f "$flash" ]
+then
+	echo "Usage: $0 [flash image] [image] ..."
+	exit 1
+fi
+
+if [ ! -f "$layout" ]
+then
+	echo "Missing layout file: $layout"
+	exit 1
+fi
+
+flashsize=$( stat $flash -c "%s" )
+
+for image in $@; do
+	range=$( grep "$image" "$layout" )
+	name=$( echo "$range" | sed "s/$regex/\3/g" )
+	file="$name.img"
+
+	if [ -z "$range" ] || [ ! -f "$file" ]
+	then
+		echo "Invalid image name: $name"
+		continue
+	fi
+
+	start=$( echo "$range" | sed "s/$regex/\1/g" )
+	start=$( printf "%d\n" "0x$start" )
+	stop=$( echo "$range" | sed "s/$regex/\2/g" )
+	stop=$( printf "%d\n" "0x$stop" )
+
+	size=$(( $stop - $start + 1 ))
+	filesize=$( stat $file -c "%s" )
+
+	if [ $size -ne $filesize ]
+	then
+		echo "Invalid file size: expected $size, read $filesize"
+		continue
+	fi
+
+	if [ $size -gt $flashsize ]
+	then
+		echo "Image size too big for flash"
+		continue
+	fi
+
+	printf "Replacing $image in $flash\n\n"
+
+	if [ $start -gt 0 ]
+	then
+		dd if=$flash of=before.img bs=$block count=$(( $start / $block ))
+	else
+		touch before.img
+	fi
+
+	if [ $(( $stop + 1 )) -lt $flashsize ]
+	then
+		dd if=$flash of=after.img skip=$(( ($stop + 1) / $block )) bs=$block count=$(( ($flashsize - $stop - 1) / $block ))
+	else
+		touch after.img
+	fi
+
+	cat before.img $file after.img > $flash
+
+	rm before.img after.img
+
+	printf "\n"
+done