Rockchip release bl31.elf file for armv8 SoCs like rk3399, rk3328, the elf have more than one section, we need to decode it first and packed them into u-boot.itb with its file. This script is to generate the its script. Need default bl31.elf in root directory of U-Boot source and dtb as parameter. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>master
parent
1a066c22f2
commit
cbe503793a
@ -0,0 +1,221 @@ |
|||||||
|
#!/usr/bin/env python2 |
||||||
|
""" |
||||||
|
A script to generate FIT image source for rockchip boards |
||||||
|
with ARM Trusted Firmware |
||||||
|
and multiple device trees (given on the command line) |
||||||
|
|
||||||
|
usage: $0 <dt_name> [<dt_name> [<dt_name] ...] |
||||||
|
""" |
||||||
|
|
||||||
|
import os |
||||||
|
import sys |
||||||
|
import getopt |
||||||
|
|
||||||
|
# pip install pyelftools |
||||||
|
from elftools.elf.elffile import ELFFile |
||||||
|
from elftools.elf.sections import SymbolTableSection |
||||||
|
from elftools.elf.segments import Segment, InterpSegment, NoteSegment |
||||||
|
|
||||||
|
ELF_SEG_P_TYPE='p_type' |
||||||
|
ELF_SEG_P_PADDR='p_paddr' |
||||||
|
ELF_SEG_P_VADDR='p_vaddr' |
||||||
|
ELF_SEG_P_OFFSET='p_offset' |
||||||
|
ELF_SEG_P_FILESZ='p_filesz' |
||||||
|
ELF_SEG_P_MEMSZ='p_memsz' |
||||||
|
|
||||||
|
DT_HEADER="""/* |
||||||
|
* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd |
||||||
|
* |
||||||
|
* Minimal dts for a SPL FIT image payload. |
||||||
|
* |
||||||
|
* SPDX-License-Identifier: GPL-2.0+ X11 |
||||||
|
*/ |
||||||
|
/dts-v1/; |
||||||
|
|
||||||
|
/ { |
||||||
|
description = "Configuration to load ATF before U-Boot"; |
||||||
|
#address-cells = <1>; |
||||||
|
|
||||||
|
images { |
||||||
|
uboot@1 { |
||||||
|
description = "U-Boot (64-bit)"; |
||||||
|
data = /incbin/("u-boot-nodtb.bin"); |
||||||
|
type = "standalone"; |
||||||
|
os = "U-Boot"; |
||||||
|
arch = "arm64"; |
||||||
|
compression = "none"; |
||||||
|
load = <0x%08x>; |
||||||
|
}; |
||||||
|
""" |
||||||
|
|
||||||
|
DT_IMAGES_NODE_END=""" |
||||||
|
}; |
||||||
|
""" |
||||||
|
|
||||||
|
DT_END=""" |
||||||
|
}; |
||||||
|
""" |
||||||
|
|
||||||
|
def append_atf_node(file, atf_index, phy_addr): |
||||||
|
""" |
||||||
|
Append ATF DT node to input FIT dts file. |
||||||
|
""" |
||||||
|
data = 'bl31_0x%08x.bin' % phy_addr |
||||||
|
print >> file, '\t\tatf@%d {' % atf_index |
||||||
|
print >> file, '\t\t\tdescription = \"ARM Trusted Firmware\";' |
||||||
|
print >> file, '\t\t\tdata = /incbin/("%s");' % data |
||||||
|
print >> file, '\t\t\ttype = "firmware";' |
||||||
|
print >> file, '\t\t\tarch = "arm64";' |
||||||
|
print >> file, '\t\t\tos = "arm-trusted-firmware";' |
||||||
|
print >> file, '\t\t\tcompression = "none";' |
||||||
|
print >> file, '\t\t\tload = <0x%08x>;' % phy_addr |
||||||
|
if atf_index == 1: |
||||||
|
print >> file, '\t\t\tentry = <0x%08x>;' % phy_addr |
||||||
|
print >> file, '\t\t};' |
||||||
|
print >> file, '' |
||||||
|
|
||||||
|
def append_fdt_node(file, dtbs): |
||||||
|
""" |
||||||
|
Append FDT nodes. |
||||||
|
""" |
||||||
|
cnt = 1 |
||||||
|
for dtb in dtbs: |
||||||
|
dtname = os.path.basename(dtb) |
||||||
|
print >> file, '\t\tfdt@%d {' % cnt |
||||||
|
print >> file, '\t\t\tdescription = "%s";' % dtname |
||||||
|
print >> file, '\t\t\tdata = /incbin/("%s");' % dtb |
||||||
|
print >> file, '\t\t\ttype = "flat_dt";' |
||||||
|
print >> file, '\t\t\tcompression = "none";' |
||||||
|
print >> file, '\t\t};' |
||||||
|
print >> file, '' |
||||||
|
cnt = cnt + 1 |
||||||
|
|
||||||
|
def append_conf_section(file, cnt, dtname, atf_cnt): |
||||||
|
print >> file, '\t\tconfig@%d {' % cnt |
||||||
|
print >> file, '\t\t\tdescription = "%s";' % dtname |
||||||
|
print >> file, '\t\t\tfirmware = "atf@1";' |
||||||
|
print >> file, '\t\t\tloadables = "uboot@1",', |
||||||
|
for i in range(1, atf_cnt): |
||||||
|
print >> file, '"atf@%d"' % (i+1), |
||||||
|
if i != (atf_cnt - 1): |
||||||
|
print >> file, ',', |
||||||
|
else: |
||||||
|
print >> file, ';' |
||||||
|
print >> file, '\t\t\tfdt = "fdt@1";' |
||||||
|
print >> file, '\t\t};' |
||||||
|
print >> file, '' |
||||||
|
|
||||||
|
def append_conf_node(file, dtbs, atf_cnt): |
||||||
|
""" |
||||||
|
Append configeration nodes. |
||||||
|
""" |
||||||
|
cnt = 1 |
||||||
|
print >> file, '\tconfigurations {' |
||||||
|
print >> file, '\t\tdefault = "config@1";' |
||||||
|
for dtb in dtbs: |
||||||
|
dtname = os.path.basename(dtb) |
||||||
|
append_conf_section(file, cnt, dtname, atf_cnt) |
||||||
|
cnt = cnt + 1 |
||||||
|
print >> file, '\t};' |
||||||
|
print >> file, '' |
||||||
|
|
||||||
|
def generate_atf_fit_dts(fit_file_name, bl31_file_name, uboot_file_name, dtbs_file_name): |
||||||
|
""" |
||||||
|
Generate FIT script for ATF image. |
||||||
|
""" |
||||||
|
if fit_file_name != sys.stdout: |
||||||
|
fit_file = open(fit_file_name, "wb") |
||||||
|
else: |
||||||
|
fit_file = sys.stdout |
||||||
|
|
||||||
|
num_load_seg = 0 |
||||||
|
p_paddr = 0xFFFFFFFF |
||||||
|
with open(uboot_file_name) as uboot_file: |
||||||
|
uboot = ELFFile(uboot_file) |
||||||
|
for i in range(uboot.num_segments()): |
||||||
|
seg = uboot.get_segment(i) |
||||||
|
if ('PT_LOAD' == seg.__getitem__(ELF_SEG_P_TYPE)): |
||||||
|
p_paddr = seg.__getitem__(ELF_SEG_P_PADDR) |
||||||
|
num_load_seg = num_load_seg + 1 |
||||||
|
|
||||||
|
assert (p_paddr != 0xFFFFFFFF and num_load_seg == 1) |
||||||
|
|
||||||
|
print >> fit_file, DT_HEADER % p_paddr |
||||||
|
|
||||||
|
with open(bl31_file_name) as bl31_file: |
||||||
|
bl31 = ELFFile(bl31_file) |
||||||
|
for i in range(bl31.num_segments()): |
||||||
|
seg = bl31.get_segment(i) |
||||||
|
if ('PT_LOAD' == seg.__getitem__(ELF_SEG_P_TYPE)): |
||||||
|
paddr = seg.__getitem__(ELF_SEG_P_PADDR) |
||||||
|
p= seg.__getitem__(ELF_SEG_P_PADDR) |
||||||
|
append_atf_node(fit_file, i+1, paddr) |
||||||
|
atf_cnt = i+1 |
||||||
|
append_fdt_node(fit_file, dtbs_file_name) |
||||||
|
print >> fit_file, '%s' % DT_IMAGES_NODE_END |
||||||
|
append_conf_node(fit_file, dtbs_file_name, atf_cnt) |
||||||
|
print >> fit_file, '%s' % DT_END |
||||||
|
|
||||||
|
if fit_file_name != sys.stdout: |
||||||
|
fit_file.close() |
||||||
|
|
||||||
|
def generate_atf_binary(bl31_file_name): |
||||||
|
with open(bl31_file_name) as bl31_file: |
||||||
|
bl31 = ELFFile(bl31_file) |
||||||
|
|
||||||
|
num = bl31.num_segments() |
||||||
|
for i in range(num): |
||||||
|
seg = bl31.get_segment(i) |
||||||
|
if ('PT_LOAD' == seg.__getitem__(ELF_SEG_P_TYPE)): |
||||||
|
paddr = seg.__getitem__(ELF_SEG_P_PADDR) |
||||||
|
file_name = 'bl31_0x%08x.bin' % paddr |
||||||
|
with open(file_name, "wb") as atf: |
||||||
|
atf.write(seg.data()); |
||||||
|
|
||||||
|
def get_bl31_segments_info(bl31_file_name): |
||||||
|
""" |
||||||
|
Get load offset, physical offset, file size |
||||||
|
from bl31 elf file program headers. |
||||||
|
""" |
||||||
|
with open(bl31_file_name) as bl31_file: |
||||||
|
bl31 = ELFFile(bl31_file) |
||||||
|
|
||||||
|
num = bl31.num_segments() |
||||||
|
print 'Number of Segments : %d' % bl31.num_segments() |
||||||
|
for i in range(num): |
||||||
|
print 'Segment %d' % i |
||||||
|
seg = bl31.get_segment(i) |
||||||
|
ptype = seg[ELF_SEG_P_TYPE] |
||||||
|
poffset = seg[ELF_SEG_P_OFFSET] |
||||||
|
pmemsz = seg[ELF_SEG_P_MEMSZ] |
||||||
|
pfilesz = seg[ELF_SEG_P_FILESZ] |
||||||
|
print 'type: %s\nfilesz: %08x\nmemsz: %08x\noffset: %08x' % (ptype, pfilesz, pmemsz, poffset) |
||||||
|
paddr = seg[ELF_SEG_P_PADDR] |
||||||
|
print 'paddr: %08x' % paddr |
||||||
|
|
||||||
|
def main(): |
||||||
|
uboot_elf="./u-boot" |
||||||
|
bl31_elf="./bl31.elf" |
||||||
|
FIT_ITS=sys.stdout |
||||||
|
|
||||||
|
opts, args = getopt.getopt(sys.argv[1:], "o:u:b:h") |
||||||
|
for opt, val in opts: |
||||||
|
if opt == "-o": |
||||||
|
FIT_ITS=val |
||||||
|
elif opt == "-u": |
||||||
|
uboot_elf=val |
||||||
|
elif opt == "-b": |
||||||
|
bl31_elf=val |
||||||
|
elif opt == "-h": |
||||||
|
print __doc__ |
||||||
|
sys.exit(2) |
||||||
|
|
||||||
|
dtbs = args |
||||||
|
#get_bl31_segments_info("u-boot") |
||||||
|
#get_bl31_segments_info("bl31.elf") |
||||||
|
|
||||||
|
generate_atf_fit_dts(FIT_ITS, bl31_elf, uboot_elf, dtbs) |
||||||
|
generate_atf_binary(bl31_elf); |
||||||
|
|
||||||
|
if __name__ == "__main__": |
||||||
|
main() |
Loading…
Reference in new issue