Topic: TEW-634GRU port

I have a bunch of TEW-634GRU access points that I would like to port openwrt to.  I have serial access and I can read and write the flash from the current embedded Linux system.  As far as I can tell all the parts are supported, I believe it is very similar to the TL-WR1043ND which I currently have running openwrt.  Would someone be able to explain what steps I need to add support?

Flash: 4MB
Switch: RTL8366
CPU: AR9100 (AR9102?)
WIFI: AR5416 (?)

Any other information that would be useful?

I've started a wiki page at

Re: TEW-634GRU port

Although I have serial access, I haven't found any way to interrupt the boot loader, so I can't try any images in RAM or on a flash drive.

Re: TEW-634GRU port

What's the output on the serial port as it first boots up?
Does it tell you what kind of bootloader it is running?

~Jonathan Bennett

Re: TEW-634GRU port

Looks like I forgot to mention that the bootloader is u-boot.  Here's the first part of the output from the serial port:

U-Boot 1.1.4 (Mar 18 2009 - 10:29:41)

AP83 (ar9100) U-boot 0.0.6 400 MHz
DRAM:  AP83 initdram

32 MB
Reserving 179k for U-Boot at: 81fd0000                                                        
Reserving 192k for malloc() at: 81fa0000                                                      
Reserving 44 Bytes for Board Info at: 81f9ffd4                               
Reserving 36 Bytes for Global Data at: 81f9ffb0                              
Reserving 128k for boot params() at: 81f7ffb0               
Stack Pointer at: 81f7ff98                                  
Now running in RAM - U-Boot at: 81fd0000                    
ar7100 flash_init                                           
id read 0x10000107                                          
flash size 4MB, sector count = 64                           
Flash:  4 MB
Using default environment

In:    serial
Out:   serial
Err:   serial
Net:   eth_initialize CONFIG_NET_MULTI
rtl8366sr_phy_setup  ethUnit=0
Realtek 8366SR switch ID 0x8366
eth0: 00:14:d1:6f:a5:36
ethernet found.
## Booting image at bf030000 ...
   Image Name:   Linux Kernel Image
   Created:      2009-06-04   9:11:54 UTC
   Image Type:   MIPS Linux Kernel Image (lzma  compressed)
   Data Size:    913378 Bytes = 892 kB
   Load Address: 80060000
   Entry Point:  802dc000
   Verifying Checksum ... OK
   LZMA Umcompressing Kernel Image ...    Image loaded from 80060000-802fd086
   Boot image os 5=IH_OS_LINUX
## do_bootm_linux start....
No initrd
## Transferring control to Linux (at address 802dc000) ...
## Giving linux memsize in bytes, 33554432

##Starting kernel ...

Linux version 2.6.15--LSDK- (root@localhost.localdomain) (gcc version 3.4.4) #637 Thu Jun 4 16:08:39 CST 2009

Re: TEW-634GRU port

Trendnet has now included the u-boot source in their GPL package so hopefully I can make some more progress now.

Re: TEW-634GRU port

Is it possible to connect to serial port using nokia dku-5 cabel? It contains pl2303 3.3v ttl. Is it enough rx,tx,gnd?

and what is your progress in porting?

It is The Great idea to port OpenWRT to this hardware. A usb port should work with lpr or p910nd for example. Storage is good too.

Re: TEW-634GRU port

Yes, I'm using the Nokia cable (or similar).  I haven't had a chance to look at it again for a while.