[U-Boot] [PATCH v3 1/3] rockchip: add a common script for generate fit its
Kever Yang
kever.yang at rock-chips.com
Fri Dec 15 03:15:03 UTC 2017
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 at rock-chips.com>
---
Changes in v3:
- use python script
- adapt for latest spl atf support
Changes in v2: None
arch/arm/mach-rockchip/make_fit_atf.py | 221 +++++++++++++++++++++++++++++++++
1 file changed, 221 insertions(+)
create mode 100755 arch/arm/mach-rockchip/make_fit_atf.py
diff --git a/arch/arm/mach-rockchip/make_fit_atf.py b/arch/arm/mach-rockchip/make_fit_atf.py
new file mode 100755
index 0000000..7c6dd57
--- /dev/null
+++ b/arch/arm/mach-rockchip/make_fit_atf.py
@@ -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 at 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 at 1";'
+ print >> file, '\t\t\tloadables = "uboot at 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 at 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 at 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()
--
1.9.1
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