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Diff: targets/REALTEK_RTL8195AM.py
- Revision:
- 36:96847d42f010
- Child:
- 40:7d3fa6b99b2b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/REALTEK_RTL8195AM.py Thu Jun 22 11:12:28 2017 -0500
@@ -0,0 +1,141 @@
+"""
+mbed REALTEK_RTL8195AM elf2bin script
+Copyright (c) 2011-2016 Realtek Semiconductor Corp.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+LIBRARIES BUILD
+"""
+
+import sys, array, struct, os, re, subprocess
+import hashlib
+
+from tools.paths import TOOLS_BOOTLOADERS
+from datetime import datetime
+
+# Constant Variables
+RAM2_RSVD = 0x3131373835393138
+
+def write_fixed_width_string(value, width, output):
+ # cut string to list & reverse
+ line = [value[i:i+2] for i in range(0, len(value), 2)]
+ output.write("".join([chr(long(b, 16)) for b in line]))
+
+def write_fixed_width_value(value, width, output):
+ # convert to string
+ line = format(value, '0%dx' % (width))
+ if len(line) > width:
+ print "[ERROR] value 0x%s cannot fit width %d" % (line, width)
+ sys.exit(-1)
+ # cut string to list & reverse
+ line = [line[i:i+2] for i in range(0, len(line), 2)]
+ line.reverse()
+ # convert to write buffer
+ output.write("".join([chr(long(b, 16)) for b in line]))
+
+def append_image_file(image, output):
+ input = open(image, "rb")
+ output.write(input.read())
+ input.close()
+
+def prepend(image, image_prepend, toolchain, info):
+ output = open(image_prepend, "wb")
+ write_fixed_width_value(info['size'], 8, output)
+ write_fixed_width_value(info['addr'], 8, output)
+ write_fixed_width_value(RAM2_RSVD, 16, output)
+ with open(image, "rb") as input:
+ if toolchain == "IAR":
+ input.seek(info['addr'])
+ output.write(input.read(info['size']))
+ output.close()
+
+def parse_section(toolchain, elf, section):
+ info = {'addr':None, 'size':0};
+ if toolchain not in ["GCC_ARM", "ARM_STD", "ARM", "ARM_MICRO", "IAR"]:
+ print "[ERROR] unsupported toolchain " + toolchain
+ sys.exit(-1)
+
+ mapfile = elf.rsplit(".", 1)[0] + ".map"
+
+ with open(mapfile, 'r') as infile:
+ # Search area to parse
+ for line in infile:
+ if toolchain == "GCC_ARM":
+ # .image2.table 0x[00000000]30000000 0x18
+ # 0x[00000000]30000000 __image2_start__ = .
+ # 0x[00000000]30000000 __image2_entry_func__ = .
+ match = re.match(r'^' + section + \
+ r'\s+0x0{,8}(?P<addr>[0-9A-Fa-f]{8})\s+0x(?P<size>[0-9A-Fa-f]+).*$', line)
+ elif toolchain in ["ARM_STD", "ARM", "ARM_MICRO"]:
+ # Memory Map of the image
+ # Load Region LR_DRAM (Base: 0x30000000, Size: 0x00006a74, Max: 0x00200000, ABSOLUTE)
+ # Execution Region IMAGE2_TABLE (Base: 0x30000000, Size: 0x00000018, Max: 0xffffffff, ABSOLUTE, FIXED)
+ # Base Addr Size Type Attr Idx E Section Name Object
+ # 0x30000000 0x00000004 Data RO 5257 .image2.ram.data rtl8195a_init.o
+ match = re.match(r'^.*Region\s+' + section + \
+ r'\s+\(Base: 0x(?P<addr>[0-9A-Fa-f]{8}),\s+Size: 0x(?P<size>[0-9A-Fa-f]+), .*\)$', line)
+ elif toolchain == "IAR":
+ # Section Kind Address Size Object
+ # ------- ---- ------- ---- ------
+ # "A3": 0x8470
+ # IMAGE2 0x10006000 0x5d18 <Block>
+ # .ram_image2.text 0x10006000 0x5bbc <Block>
+ # .rodata const 0x10006000 0x14 retarget.o [17]
+ match = re.match(r'^\s+' + section + \
+ r'\s+0x(?P<addr>[0-9A-Fa-f]{8})\s+0x(?P<size>[0-9A-Fa-f]+)\s+.*<Block>$', line)
+ if match:
+ info['addr'] = int(match.group("addr"), 16)
+ try:
+ info['size'] = int(match.group("size"), 16)
+ except IndexError:
+ print "[WARNING] cannot find the size of section " + section
+ return info
+
+ print "[ERROR] cannot find the address of section " + section
+ return info
+
+# ----------------------------
+# main function
+# ----------------------------
+def rtl8195a_elf2bin(toolchain, image_elf, image_bin):
+ if toolchain == "GCC_ARM":
+ img2_sections = [".image2.table", ".text", ".data"]
+ elif toolchain in ["ARM_STD", "ARM", "ARM_MICRO"]:
+ img2_sections = [".image2.table", ".text", ".data"]
+ elif toolchain == "IAR":
+ # actually it's block
+ img2_sections = ["IMAGE2"]
+ else:
+ print("[error] unsupported toolchain") + toolchain
+ return
+ ram2_info = {'addr':None, 'size':0}
+ image_name = os.path.splitext(image_elf)[0]
+
+ ram1_prepend_bin = os.path.join(TOOLS_BOOTLOADERS, "REALTEK_RTL8195AM", "ram_1_prepend.bin")
+ ram2_prepend_bin = image_name + '-ram_2_prepend.bin'
+
+ old_bin = image_name + '.bin'
+ for section in img2_sections:
+ section_info = parse_section(toolchain, image_elf, section)
+ if ram2_info['addr'] is None or ram2_info['addr'] > section_info['addr']:
+ ram2_info['addr'] = section_info['addr']
+ ram2_info['size'] = ram2_info['size'] + section_info['size']
+
+ prepend(old_bin, ram2_prepend_bin, toolchain, ram2_info)
+ # write output file
+ output = open(image_bin, "wb")
+ append_image_file(ram1_prepend_bin, output)
+ append_image_file(ram2_prepend_bin, output)
+ output.close()
+ # post built done
+
