diff options
| -rw-r--r-- | src/soc/mediatek/mt8173/Makefile.inc | 4 | ||||
| -rwxr-xr-x | util/mtkheader/gen-bl-img.py | 92 |
2 files changed, 96 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8173/Makefile.inc b/src/soc/mediatek/mt8173/Makefile.inc index a9cb9c2114..27ed312095 100644 --- a/src/soc/mediatek/mt8173/Makefile.inc +++ b/src/soc/mediatek/mt8173/Makefile.inc @@ -61,6 +61,10 @@ ramstage-y += wdt.c ################################################################################ +# Generate the actual coreboot bootblock code +$(objcbfs)/bootblock.bin: $(objcbfs)/bootblock.raw.bin + ./util/mtkheader/gen-bl-img.py mt8173 sf $< $@ + CPPFLAGS_common += -Isrc/soc/mediatek/mt8173/include endif diff --git a/util/mtkheader/gen-bl-img.py b/util/mtkheader/gen-bl-img.py new file mode 100755 index 0000000000..5d464311d8 --- /dev/null +++ b/util/mtkheader/gen-bl-img.py @@ -0,0 +1,92 @@ +#!/usr/bin/env python + +# +# This file is part of the coreboot project. +# +# Copyright (c) 2015 MediaTek Inc. +# Author: Tristan Shieh <tristan.shieh@mediatek.com> +# +# 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; version 2 of the License. +# +# 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. +# + + +import struct +import sys +import hashlib + +def read(path): + with open(path, "rb") as f: + return f.read() + +def write(path, data): + with open(path, "wb") as f: + f.write(data) + +def padding(data, size, pattern = '\0'): + return data + pattern * (size - len(data)) + +def align(data, size, pattern = '\0'): + return padding(data, (len(data) + (size - 1)) & ~(size - 1), pattern) + +gfh_infos = { + 'mt8173': struct.pack("44I", + 0x014d4d4d, 0x00000038, 0x454c4946, 0x464e495f, + 0x0000004f, 0x00000001, 0x01050001, 0x000C0f50, + 0xffffffff, 0x00020000, 0x000000a8, 0x00000020, + 0x000000B0, 0x00000001, 0x014d4d4d, 0x0001000c, + 0x00000001, 0x034d4d4d, 0x00070064, 0x00001182, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00006400, 0x00001388, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + )} + +def gen_emmc_header(data): + header = (padding(struct.pack("<12sII", "EMMC_BOOT", 1, 512), 512, '\xff') + + padding(struct.pack("<8sIIIIIIII", "BRLYT", 1, 2048, 2048 + len(data), + 0x42424242, 0x00010005, 2048, 2048 + len(data), 1) + '\0' * 140, 512, '\xff') + + '\0' * 1024) + return header + +def gen_sf_header(data): + header = (padding(struct.pack("<12sII", "SF_BOOT", 1, 512), 512, '\xff') + + padding(struct.pack("<8sIIIIIIII", "BRLYT", 1, 2048, 2048 + len(data), + 0x42424242, 0x00010007, 2048, 2048 + len(data), 1) + '\0' * 140, 512, '\xff') + + '\0' * 1024) + return header + +gen_dev_header = { + "emmc": gen_emmc_header, + "sf": gen_sf_header +} + +def gen_preloader(chip_ver, flash_type, data): + gfh_info = gfh_infos[chip_ver] + gfh_info = gfh_info[0:32] + struct.pack("1I", len(data)+len(gfh_info)+32) + gfh_info[36:len(gfh_info)] + + gfh_hash = hashlib.sha256(gfh_info + data).digest() + + data = align(gfh_info + data + gfh_hash, 512, '\xff') + header = gen_dev_header[flash_type](data) + return header + data + +def main(argv): + if len(argv) != 5: + print "Usage: %s <chip> <flash_type> <input_file> <output_file>" % argv[0] + print "\t flash_type: emmc/sf" + print "\t chip : mt8173" + + exit(1) + write(argv[4], gen_preloader(argv[1], argv[2], read(argv[3]))) + +if __name__ == "__main__": + main(sys.argv) |