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Old 31-January-2012, 21:21
unlokia unlokia is offline
Join Date: Jun 2006
Posts: 237
Default Netgear DG632 (old router - no wireless) serial pinouts

I bought an old Netgear DG632 last year. I've just got around to working out the serial port pinout for hacking it:


Boot log:

ADAM2 Revision 0.22.02
(C) Copyright 1996-2003 Texas Instruments Inc. All Rights Reserved.
(C) Copyright 2003 Telogy Networks, Inc.
Usage: setmfreq [-d] [-s sys_freq, in MHz] [cpu_freq, in MHz]
Memory optimization Complete!
Adam2_AR7RD > 
Press 'Enter' key to abort OS load, or wait 5 seconds for OS to boot...
Launching kernel decompressor.
Starting LZMA Uncompression Algorithm.
Copyright (C) 2003 Texas Instruments Incorporated; Copyright (C) 1999-2003 Igor Pavlov.
Compressed file is LZMA format.
Kernel decompressor was successful ... launching kernel.

LINUX started...
Config serial console: ttyS0,38400
Auto Detection SANGAM chip
This SOC has MDIX cababilities on chip.
CPU revision is: 00018448
Primary instruction cache 16kb, linesize 16 bytes (4 ways)
Primary data cache 16kb, linesize 16 bytes (4 ways)
Number of TLB entries 16.
Linux version 2.4.17_mvl21-malta-mips_fp_le (root@adslrick) (gcc version 2.95.3 20010315 (release/MontaVista)) #1 Thu Oct 25
Determined physical RAM map:
 memory: 14000000 @ 00000000 (reserved)
 memory: 00020000 @ 14000000 (ROM data)
 memory: 007e0000 @ 14020000 (usable)
On node 0 totalpages: 2048
zone(0): 2048 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: 
calculating r4koff... 000b71b0(750000)
CPU frequency 150.00 MHz
Calibrating delay loop... 149.91 BogoMIPS
Freeing Adam2 reserved memory [0x14001000,0x0001f000]
Memory: 6308k/8192k available (1472k kernel code, 1884k reserved, 119k data, 60k init)
Dentry-cache hash table entries: 1024 (order: 1, 8192 bytes)
Inode-cache hash table entries: 512 (order: 0, 4096 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 2048 (order: 1, 8192 bytes)
Checking for 'wait' instruction...  unavailable.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
TI Optimizations: Allocating TI-Cached Memory Pool.
Warning: Number of buffers is not configured.Setting default to 120
Using 120 Buffers for TI-Cached Memory Pool.
DEBUG: Using Hybrid Mode.
NSP Optimizations: Succesfully allocated TI-Cached Memory Pool.
Initializing RT netlink socket
Starting kswapd
Disabling the Out Of Memory Killer
devfs: v1.7 (20011216) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
Adam2 environment variables API installed.
pty: 32 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at 0xa8610e00 (irq = 15) is a 16550A
ttyS01 at 0xa8610f00 (irq = 16) is a 16550A
block: 64 slots per queue, batch=16
DEBUG: Initializing the voice port management module. 
DEBUG: Initialization of the voice port management module successful..
Using the MAC with internal PHY
Cpmac driver is allocating buffer memory at init time.
Cpmac driver Disable TX complete interrupt setting threshold to 20.
Default Asymmetric MTU for eth0 1500
PPP generic driver version 2.4.1
avalanche flash device: 0x400000 at 0x10000000.
Physically mapped flash:0: Found 1 x16 devices at 0x200000 in 16-bit mode
 Amd/Fujitsu Extended Query Table v1.0 at 0x0040
number of CFI chips: 2
Looking for mtd device :mtd0:
Found a mtd0 image (0x90000), with size (0x160000).
Creating 1 MTD partitions on "Physically mapped flash:0":
0x00090000-0x001f0000 : "mtd0"
Looking for mtd device :mtd1:
Found a mtd1 image (0x10000), with size (0x80000).
Creating 1 MTD partitions on "Physically mapped flash:0":
0x00010000-0x00090000 : "mtd1"
Looking for mtd device :mtd2:
Found a mtd2 image (0x0), with size (0x10000).
Creating 1 MTD partitions on "Physically mapped flash:0":
0x00000000-0x00010000 : "mtd2"
Looking for mtd device :mtd3:
Found a mtd3 image (0x1f0000), with size (0x10000).
Creating 1 MTD partitions on "Physically mapped flash:0":
0x001f0000-0x00200000 : "mtd3"
Looking for mtd device :mtd4:
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 512 bind 512)
Linux IP multicast router 0.06 plus PIM-SM
ip_conntrack version 2.0_use_NSP340_netfilter (128 buckets, 1024 max) - 364 bytes per conntrack
ip_tables: (c)2000 Netfilter core team
netfilter PSD loaded - (c) astaro AG
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Ethernet Bridge 008 for NET4.0
Initializing the WAN Bridge.
Please set the MAC Address for the WAN Bridge.
Set the Environment variable 'wan_br_mac'. 
MAC Address should be in the following format: xx.xx.xx.xx.xx.xx
VFS: Mounted root (squashfs filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 60k freed
serial console detected.  Disabling virtual terminals.
init started:  BusyBox v0.61.pre (2005.10.20-05:21+0000) multi-call binary
Starting pid 9, console /dev/tts/0: '/etc/init.d/rcS'
Algorithmics/MIPS FPU Emulator v1.5
 Reading Standard Configuration File /etc/led.conf
Segmentation fault
Using /lib/modules/2.4.17_mvl21-malta-mips_fp_le/kernel/drivers/net/avalanche_usb/avalanche_usb.o
USB: Entering USB_init_module.
USB Driver built for RNDIS-CDC protocols.
Error getting protocol configuration from bootloader environment.
Defaulting to "RNDIS-CDC" mode.
Start usb_clk_check
VID = 0x451
PID = 0x6060
No Serial Number String present.
Manufacturer = Texas Instruments                      
Product description = NETGEAR USB MODEM
USB: Entering USB_Init.
USB: Leaving USB_Init.
Default Asymmetric MTU for usb0 1500
USB: Leaving USB_init_module.
Using /lib/modules/2.4.17_mvl21-malta-mips_fp_le/kernel/drivers/atm/tiatm.o
registered device TI Avalanche SAR
Sangam detected
DSP binary filesize = 357754 bytes
Texas Instruments ATM driver: version:[]
Waiting for enter to start '/bin/sh' (pid 38, terminal /dev/tts/0)

Please press Enter to activate this console. SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
00:00:00 cfgmgr(sar): DSL Polling Timer Started succesfully.
00:00:01 cfgmgr(fdb): Firewall NAT service started
Default Asymmetric MTU for br0 1500
00:00:01 cfgmgr(lanbridge0): Bridge Created: br0
Doing BRCTL ...
setfilter br0 0 
00:00:02 cfgmgr(lanbridge0): Bridge Interface Added: eth0
Doing BRCTL ...
setfilter br0 0 
00:00:03 cfgmgr(lanbridge0): Bridge Interface Added: usb0
Doing BRCTL ...
setfilter br0 0 
00:00:10 cfgmgr(sar): DSL Carrier is down
Process '-/bin/sh' (pid 38) exited.  Scheduling it for restart.
Waiting for enter to start '/bin/sh' (pid 143, terminal /dev/tts/0)

Please press Enter to activate this console. 
Starting pid 143, console /dev/tts/0: '/bin/sh'

BusyBox v0.61.pre (2005.10.20-05:21+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

Yes. I *love* hacking embedded devices
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chips, computer, delay, flash, hacking, key, nat, netgear, port, router, wireless

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