mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 10:46:15 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
219 lines
6.3 KiB
Python
Executable File
219 lines
6.3 KiB
Python
Executable File
#!/usr/bin/env python2
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"""
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A script to generate FIT image source for rockchip boards
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with ARM Trusted Firmware
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and multiple device trees (given on the command line)
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usage: $0 <dt_name> [<dt_name> [<dt_name] ...]
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"""
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import os
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import sys
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import getopt
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# pip install pyelftools
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from elftools.elf.elffile import ELFFile
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ELF_SEG_P_TYPE='p_type'
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ELF_SEG_P_PADDR='p_paddr'
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ELF_SEG_P_VADDR='p_vaddr'
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ELF_SEG_P_OFFSET='p_offset'
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ELF_SEG_P_FILESZ='p_filesz'
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ELF_SEG_P_MEMSZ='p_memsz'
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DT_HEADER="""// SPDX-License-Identifier: GPL-2.0+ OR X11
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/*
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* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd
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*
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* Minimal dts for a SPL FIT image payload.
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*/
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/dts-v1/;
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/ {
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description = "Configuration to load ATF before U-Boot";
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#address-cells = <1>;
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images {
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uboot@1 {
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description = "U-Boot (64-bit)";
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data = /incbin/("u-boot-nodtb.bin");
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type = "standalone";
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os = "U-Boot";
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arch = "arm64";
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compression = "none";
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load = <0x%08x>;
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};
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"""
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DT_IMAGES_NODE_END="""
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};
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"""
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DT_END="""
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};
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"""
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def append_atf_node(file, atf_index, phy_addr):
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"""
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Append ATF DT node to input FIT dts file.
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"""
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data = 'bl31_0x%08x.bin' % phy_addr
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print >> file, '\t\tatf@%d {' % atf_index
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print >> file, '\t\t\tdescription = \"ARM Trusted Firmware\";'
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print >> file, '\t\t\tdata = /incbin/("%s");' % data
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print >> file, '\t\t\ttype = "firmware";'
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print >> file, '\t\t\tarch = "arm64";'
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print >> file, '\t\t\tos = "arm-trusted-firmware";'
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print >> file, '\t\t\tcompression = "none";'
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print >> file, '\t\t\tload = <0x%08x>;' % phy_addr
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if atf_index == 1:
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print >> file, '\t\t\tentry = <0x%08x>;' % phy_addr
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print >> file, '\t\t};'
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print >> file, ''
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def append_fdt_node(file, dtbs):
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"""
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Append FDT nodes.
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"""
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cnt = 1
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for dtb in dtbs:
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dtname = os.path.basename(dtb)
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print >> file, '\t\tfdt@%d {' % cnt
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print >> file, '\t\t\tdescription = "%s";' % dtname
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print >> file, '\t\t\tdata = /incbin/("%s");' % dtb
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print >> file, '\t\t\ttype = "flat_dt";'
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print >> file, '\t\t\tcompression = "none";'
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print >> file, '\t\t};'
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print >> file, ''
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cnt = cnt + 1
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def append_conf_section(file, cnt, dtname, atf_cnt):
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print >> file, '\t\tconfig@%d {' % cnt
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print >> file, '\t\t\tdescription = "%s";' % dtname
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print >> file, '\t\t\tfirmware = "atf@1";'
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print >> file, '\t\t\tloadables = "uboot@1",',
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for i in range(1, atf_cnt):
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print >> file, '"atf@%d"' % (i+1),
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if i != (atf_cnt - 1):
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print >> file, ',',
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else:
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print >> file, ';'
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print >> file, '\t\t\tfdt = "fdt@1";'
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print >> file, '\t\t};'
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print >> file, ''
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def append_conf_node(file, dtbs, atf_cnt):
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"""
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Append configeration nodes.
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"""
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cnt = 1
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print >> file, '\tconfigurations {'
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print >> file, '\t\tdefault = "config@1";'
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for dtb in dtbs:
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dtname = os.path.basename(dtb)
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append_conf_section(file, cnt, dtname, atf_cnt)
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cnt = cnt + 1
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print >> file, '\t};'
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print >> file, ''
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def generate_atf_fit_dts(fit_file_name, bl31_file_name, uboot_file_name, dtbs_file_name):
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"""
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Generate FIT script for ATF image.
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"""
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if fit_file_name != sys.stdout:
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fit_file = open(fit_file_name, "wb")
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else:
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fit_file = sys.stdout
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num_load_seg = 0
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p_paddr = 0xFFFFFFFF
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with open(uboot_file_name) as uboot_file:
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uboot = ELFFile(uboot_file)
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for i in range(uboot.num_segments()):
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seg = uboot.get_segment(i)
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if ('PT_LOAD' == seg.__getitem__(ELF_SEG_P_TYPE)):
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p_paddr = seg.__getitem__(ELF_SEG_P_PADDR)
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num_load_seg = num_load_seg + 1
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assert (p_paddr != 0xFFFFFFFF and num_load_seg == 1)
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print >> fit_file, DT_HEADER % p_paddr
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with open(bl31_file_name) as bl31_file:
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bl31 = ELFFile(bl31_file)
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for i in range(bl31.num_segments()):
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seg = bl31.get_segment(i)
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if ('PT_LOAD' == seg.__getitem__(ELF_SEG_P_TYPE)):
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paddr = seg.__getitem__(ELF_SEG_P_PADDR)
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p= seg.__getitem__(ELF_SEG_P_PADDR)
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append_atf_node(fit_file, i+1, paddr)
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atf_cnt = i+1
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append_fdt_node(fit_file, dtbs_file_name)
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print >> fit_file, '%s' % DT_IMAGES_NODE_END
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append_conf_node(fit_file, dtbs_file_name, atf_cnt)
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print >> fit_file, '%s' % DT_END
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if fit_file_name != sys.stdout:
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fit_file.close()
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def generate_atf_binary(bl31_file_name):
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with open(bl31_file_name) as bl31_file:
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bl31 = ELFFile(bl31_file)
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num = bl31.num_segments()
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for i in range(num):
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seg = bl31.get_segment(i)
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if ('PT_LOAD' == seg.__getitem__(ELF_SEG_P_TYPE)):
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paddr = seg.__getitem__(ELF_SEG_P_PADDR)
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file_name = 'bl31_0x%08x.bin' % paddr
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with open(file_name, "wb") as atf:
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atf.write(seg.data());
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def get_bl31_segments_info(bl31_file_name):
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"""
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Get load offset, physical offset, file size
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from bl31 elf file program headers.
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"""
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with open(bl31_file_name) as bl31_file:
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bl31 = ELFFile(bl31_file)
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num = bl31.num_segments()
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print 'Number of Segments : %d' % bl31.num_segments()
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for i in range(num):
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print 'Segment %d' % i
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seg = bl31.get_segment(i)
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ptype = seg[ELF_SEG_P_TYPE]
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poffset = seg[ELF_SEG_P_OFFSET]
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pmemsz = seg[ELF_SEG_P_MEMSZ]
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pfilesz = seg[ELF_SEG_P_FILESZ]
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print 'type: %s\nfilesz: %08x\nmemsz: %08x\noffset: %08x' % (ptype, pfilesz, pmemsz, poffset)
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paddr = seg[ELF_SEG_P_PADDR]
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print 'paddr: %08x' % paddr
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def main():
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uboot_elf="./u-boot"
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bl31_elf="./bl31.elf"
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FIT_ITS=sys.stdout
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opts, args = getopt.getopt(sys.argv[1:], "o:u:b:h")
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for opt, val in opts:
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if opt == "-o":
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FIT_ITS=val
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elif opt == "-u":
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uboot_elf=val
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elif opt == "-b":
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bl31_elf=val
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elif opt == "-h":
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print __doc__
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sys.exit(2)
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dtbs = args
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#get_bl31_segments_info("u-boot")
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#get_bl31_segments_info("bl31.elf")
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generate_atf_fit_dts(FIT_ITS, bl31_elf, uboot_elf, dtbs)
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generate_atf_binary(bl31_elf);
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if __name__ == "__main__":
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main()
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