[U-Boot] [PATCH v3 1/3] rockchip: add a common script for generate fit its

* [U-Boot] [PATCH v3 1/3] rockchip: add a common script for generate fit its
@ 2017-12-15  3:15 Kever Yang
  2017-12-15  3:15 ` [U-Boot] [PATCH v3 2/3] rockchip: firefly-rk3399: add FIT for rk3399 Kever Yang
                   ` (5 more replies)
  0 siblings, 6 replies; 14+ messages in thread
From: Kever Yang @ 2017-12-15  3:15 UTC (permalink / raw)
  To: u-boot

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>
---

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

^ permalink raw reply related	[flat|nested] 14+ messages in thread