Topic: OpenWrt on a Netgear WGU624
As a proof of concept, I successfully flashed the first segment (16k) of the flash chip (MX 29LV160BBTC) where the reset vector resides (0xBFC00000) using HairyDairyMaid's indispensable utility. I used the following command line from a win32 machine -
wrt54g -flash:custom /skipdetect /instrlen:05 /window:be000000 /start:be000000 /length:4000 /fc:43 /wiggler
However, I needed to byte swap the backup that I had taken. See below.
These units are now available for $40 US (refurb) and can operate concurrently in both the 2.4 GHz (802.11b/g) and 5 GHz (802.11a) spectrum.
They sport an AR5312 CPU (dual baseband) and two radios (AR5112A, AR2112A). Operating in 5 GHz is a big plus for those of us who live in densely populated urban areas, where the 2.4 GHz spectrum is getting _very_ crowded.
Now the bad news - only 2M of flash and 8M of RAM.
Now the good news - it supports Bootp on power up (under vXWorks), so you can specifiy your image file(s) with a Bootp host and point the target to an image using a TFTP server, without having to do a serial console mod up front.
I am surprised that this model does not appear on the equipment list under Netgear. It's been around since Q4 '04.
Now that the Atheros AR531x code has been [nearly] ported to OpenWrt it may make sense to consider this unit.
You can find details and pics here - https://gullfoss2.fcc.gov/prod/oet/cf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout=500&calledFromFrame=N&application_id=356086&fcc_id='PY3WGU624'.