Patrick Georgi (pgeorgi@google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/12613
-gerrit
commit 2b3539bd65fe81249c08c0ffdaca0577a647ef5f Author: Yidi Lin yidi.lin@mediatek.com Date: Fri Jul 31 17:10:48 2015 +0800
mediatek/mt8173: Add gen-bl-img.py for mt8173 bootblock code
BUG=none TEST=emerge-oak coreboot BRANCH=none
Change-Id: I7486e548d356c5bd27261851f1f1bed620715e91 Signed-off-by: Patrick Georgi pgeorgi@chromium.org Original-Commit-Id: fbcd7959e0fda595de91899ace7236037ac833d3 Original-Change-Id: Ib9df440bfa95cf06e8041491ecdb34c357047acd Original-Signed-off-by: Yidi Lin yidi.lin@mediatek.com Original-Reviewed-on: https://chromium-review.googlesource.com/292664 Original-Reviewed-by: Julius Werner jwerner@chromium.org --- src/soc/mediatek/mt8173/Makefile.inc | 4 ++ util/mtkheader/gen-bl-img.py | 95 ++++++++++++++++++++++++++++++++++++ 2 files changed, 99 insertions(+)
diff --git a/src/soc/mediatek/mt8173/Makefile.inc b/src/soc/mediatek/mt8173/Makefile.inc index 53dc9ff..4321989 100644 --- a/src/soc/mediatek/mt8173/Makefile.inc +++ b/src/soc/mediatek/mt8173/Makefile.inc @@ -65,6 +65,10 @@ 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 0000000..700ebe0 --- /dev/null +++ b/util/mtkheader/gen-bl-img.py @@ -0,0 +1,95 @@ +#!/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. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# + +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)