summaryrefslogtreecommitdiffstats
path: root/flash
blob: 46bfb8005572d1c2fc9c99716f80ce51908047f6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
#!/bin/bash

#  flash script: uses flashrom to flash a libreboot ROM image
#
#	Copyright (C) 2014, 2015 Minifree Ltd <info@minifree.org>
#
#    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/>.
#

# So that I one day find it again
# http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_02

## Don't add here. errors are expected.
[ "x${DEBUG+set}" = 'xset' ] && set -v
# set -u -e

if [ ${EUID} -ne 0 ]; then
   printf "This script must be run as root\n"
   exit 1
fi

arch="unknown"
if [ "$(uname -i)" = "i686" ] || [ "$(uname -m)" = "i686" ]; then
	arch="i686"
elif [ "$(uname -i)" = "x86_64" ] || [ "$(uname -m)" = "x86_64" ]; then
	arch="x86_64"
else
	printf "This script must be run on an i686 or x86_64 host. x86_64 is recommended.\n"
	exit 1
fi

usage="usage: ./flash mode path/to/yourrom.rom"
availablemodes="update, forceupdate, i945lenovo_firstflash, i945lenovo_secondflash, i945apple_firstflash"

mode="unknown"
rompath="unknown"

# User specified no or too few/many parameters
if [ $# -lt 2 ]; then
	printf "%s\n" "${usage}"
	printf "You need to specify exactly one mode, and one file\n"
	printf "%s\n" "${availablemodes}"
	exit 1
fi

mode="${1}"
rompath="${2}"

# User specified an invalid mode of operation
if [ "${mode}" != "update" ] && [ "${mode}" != "forceupdate" ] && [ "${mode}" != "i945lenovo_firstflash" ] && [ "${mode}" != "i945lenovo_secondflash" ] && [ "${mode}" != "i945apple_firstflash" ]; then
	printf "%s\n" "${usage}"
	printf "Invalid mode. Modes available: %s\n" "${availablemodes}"
	exit 1
else
	printf "Mode selected: %s\n" "${mode}"
fi

# The specified file does not exist
if [ ! -f "${rompath}" ]; then
	printf "File not found!\n"
	exit 1
fi

flashrom="unknown"
if [ -f "build" ]; then
	# git or libreboot_src
	flashrom="./flashrom/flashrom"
else
	# libreboot_util
	flashrom="./flashrom/${arch}/flashrom"
fi
if [ ! -f "${flashrom}" ]; then
	printf "flashrom binary not present\n"
	exit 1
fi

# i945 lenovobios
bucts="unknown"
flashrom_lenovobios_sst="unknown"
flashrom_lenovobios_macronix="unknown"
if [ "${mode}" = "i945lenovo_firstflash" ] || [ "${mode}" = "i945lenovo_secondflash" ]; then
	if [ -f "build" ]; then
		# git or libreboot_src
		bucts="./bucts/bucts"
		flashrom_lenovobios_sst="./flashrom/flashrom_lenovobios_sst"
		flashrom_lenovobios_macronix="./flashrom/flashrom_lenovobios_macronix"
	else
		# libreboot_util
		bucts="./bucts/${arch}/bucts"
		flashrom_lenovobios_sst="./flashrom/${arch}/flashrom_lenovobios_sst"
		flashrom_lenovobios_macronix="./flashrom/${arch}/flashrom_lenovobios_macronix"
	fi
	
	# anti-bricking precaution
	if [ ! -f "${bucts}" ]; then
		printf "bucts binary not present. ABORTING so as to protect against bricking the system.\n"
		exit 1
	fi
	
	# fail if flashrom is not present
	if [ ! -f "${flashrom_lenovobios_sst}" ] || [ ! -f "${flashrom_lenovobios_macronix}" ]; then
		printf "Flashrom binaries not present.\n"
		exit 1
	fi
fi

if [ "${mode}" = "update" ]; then
	${flashrom} -p internal -w "${rompath}"
elif [ "${mode}" = "forceupdate" ]; then
	${flashrom} -p internal:boardmismatch=force,laptop=force_I_want_a_brick -w "${rompath}"
elif [ "${mode}" = "i945apple_firstflash" ]; then
	${flashrom} -p internal:laptop=force_I_want_a_brick -w "${rompath}"
elif [ "${mode}" = "i945lenovo_firstflash" ]; then
	${bucts} 1 # needed to prevent bricks.
	# One will fail (this is harmless), and the other will succeed.
	${flashrom_lenovobios_sst} -p internal -w "${rompath}"
	${flashrom_lenovobios_macronix} -p internal -w "${rompath}"
elif [ "${mode}" = "i945lenovo_secondflash" ]; then
	${flashrom} -p internal:laptop=force_I_want_a_brick -w "${rompath}"
	${bucts} 0
fi