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toh:huawei:hg655d [2013/07/05 13:14]
linuxinside
toh:huawei:hg655d [2014/04/15 12:49] (current)
danitool
Line 17: Line 17:
==== JTAG ==== ==== JTAG ====
 +
 +=== URJTAG ===
Using the urJtag with an FT2232H I was able to read the flash chip. Using the urJtag with an FT2232H I was able to read the flash chip.
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readmem 0x38000000 0x020000 hg655d-CFE.bin'' readmem 0x38000000 0x020000 hg655d-CFE.bin''
 +
 +=== ZJTAG ===
 +
 +and using zjtag(i used version 1.5)
 +
 +''zjtag -probeonly /window:18000000 /nompi - to detect flash chip
 +zjtag -backup:custom /window:18000000 /start:18000000 /length:800000 /nompi - to backup all flash''
==== Flash layout ==== ==== Flash layout ====
 +
 +for the HG655b version
The flash chip has two regions: The flash chip has two regions:
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^Phys.Addr ^Lenght ^Description ^ ^Phys.Addr ^Lenght ^Description ^
-| 0x38000000 | 66616 | CFE | +| 0x00000000 | 131072 | CFE | 
-| 0x38020000 | 256 | BCM image tag | +| 0x00020000 | 256 | BCM image tag | 
-| 0x38020100 | 4296704 | rootfs partition | +| 0x00020100 | 5062656 | rootfs partition | 
-| 0x38439000 | 65536 | upnp config XML | +| 0x00439100 | 909932 | kernel partition | 
-| 0x3843A000 | 65536 | ATP_LOG | +| 0x00790000 | 65536 | upnp config XML | 
-| 0x3843B000 | | Div tr96 conf? Env …. | +| 0x007a0000 | 65536 | ATP_LOG | 
-| 0x38440000 | | +| 0x007b0000 | 65536 | Div tr069 conf? Env …. | 
 +| 0x007c0000 | 65536 | ?????
 +| 0x007e0000 | 65536 | ????? |
==== BCM tag ==== ==== BCM tag ====
-''FW_BCM.start = 0x0 +''Tag Version -----------> : 7 
-FW_BCM.vendor = Broadcom Corporatio +Signature 1 -----------> : Broadcom Corporatio 
-FW_BCM.version = ver. 2.0 +Signature 2 -----------> : ver. 2.0 
-FW_BCM.chipid = 6368 +Chip ID ---------------> : 6368 
-FW_BCM.model = HW65x +Board ID --------------> : HW65x 
-FW_BCM._unknown = 1 +Bigendian -------------> : true 
-FW_BCM.image_size = 0x506e92 +Image size ------------> : 005b226c, 5972588 
-FW_BCM.loader_addr = 0xbfc00000 +CFE Address -----------> : 00000000, 0 
-FW_BCM.loader_size = 0x10438 +CFE Length ------------> : 00000000, 0 
-FW_BCM.root_fs_addr = 0xbfc20100 +Flash Root Address ----> : bfc20100, 3217162496 
-FW_BCM.root_fs_size = 0x419000 (4296704) +Flash Root Length -----> : 004d4000, 5062656 
-FW_BCM.kernel_addr = 0xc0039100 +Flash Kernel Address --> : c00f4100, 3222225152 
-FW_BCM.kernel_size = 0xdda5a (907866) +Flash Kernel Length ---> : 000de26c, 909932 
-FW_BCM.base = 0xbfc0fbc8 +Vendor information ----> :  
-FW_BCM.rootfs offset 0x10538 +Compile Information ---> : HG655bV100R001C02B0 
-FW_BCM.kernel_load_addr = 0x80010000 +Image CRC -------------> : f9c4cb2a [Computed Value: f9c4cb2a] 
-FW_BCM.kernel_start_addr = 0x80292000 +Header CRC ------------> : ed34bdfb  [Computed Value: ed34bdfb] 
-FW_BCM.payload_checksum = 0x0 +Kernel CRC ------------> : 4d04fb6f  [Computed Value: 4d04fb6f] 
-FW_BCM.data_crc = 0x72c3fcc5 +Rootfs CRC ------------> : 80e314ce  [Computed Value: 80e314ce]''
-FW_BCM.header_crc = 0xe600ab66''+
==== Serial ==== ==== Serial ====
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For some Help with the Tags, please have a look here: [[meta/tags]] For some Help with the Tags, please have a look here: [[meta/tags]]
-{{tag>bcm63xx bcm6368 FastEthernet 4Port 1USB ADSL2+ VDSL2 64RAM 8Flash fxo MIPS MIPS32}}+{{tag>bcm63xx bcm6368 FastEthernet 4Port 1USB ADSL2+ VDSL2 64RAM 8Flash fxo MIPS MIPS32 trng}}

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toh/huawei/hg655d.1373022898.txt.bz2 · Last modified: 2013/07/05 13:14 by linuxinside