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toh:linksys:wag160nv2 [2011/02/28 00:07] – added pictures jal2toh:linksys:wag160nv2 [2015/10/18 17:50] (current) – ↷ Links adapted because of a move operation tmomas
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 +====== Linksys WAG160Nv2 ======
  
 +This page describes the differences between WAG160Nv2  and [[.:wag160n|WAG160N]].
 +
 +**Caveat**: Before trying to run OpenWRT, do backup the flash, especially the bootloader
 +and the ath_data area, as described [[.:wag160n#hints| here]]. The nvram data embedded in the bootloader and
 +the WLAN calibration data in ath_data are specific for your device and difficult to restore otherwise. They cannot
 +be restored by flashing back a vendor firmware. Running OpenWRT voids any guarantee and may brick your device!
 +
 +===== Hardware =====
 +
 +Version 2 utilizes an Atheros AR9223 WLAN chip.
 +
 +==== PCB Top ====
 +
 +(soldered antenna cables were removed earlier)
 +
 +{{ media:linksys:wag160n:wag160nv2_top.jpg?640 }}
 +
 +{{ media:linksys:wag160n:wag160nv2_top_2.jpg?640 }}
 +
 +==== PCB Bottom ====
 +
 +{{ media:linksys:wag160n:wag160nv2_bot.jpg?640 }}
 + 
 +
 +
 +
 +===== Serial Port =====
 +
 +Same as version1: 115200, 8N1 at J10, pins are labeled.
 +
 +===== JTAG =====
 +
 + Similar to version 1: at J1 (backside of the PCB), 2x6 pins, same layout as WRT54GL:
 +<code>
 + nTRST  1   2 GND
 + TDI    3   4 GND
 + TDO    5   6 GND
 + TMS    7   8 GND
 + TCK    9  10 GND
 + nSRST 11  12 GND</code>
 +
 +If you have problems with JTAG access you may need to solder an resistor array (e.g. 4 x 10k) into RN11.
 +
 +
 +===== Bootloader =====
 +
 +The bootloader
 +
 +<code> 
 +CFE version 1.0.37-5.4 for BCM96358 (32bit,SP,BE)
 +Build Date: 2009年 03�𹴜� 31��日 ��星��期��二 17:07:55 CST (root@localhost.loca)Copyright (C) 2000-2005 Broadcom Corporation.
 +</code>
 +
 +looks for a so-called pid2 at flash offset >= 0x200000 during startup. If it cannot find one it says
 +
 +<code>
 +no pid2
 +WARNING!! - FIRMWARE HAD BEEN DESTORYED!!
 +            YOU NEED RE-DOWNLOAD FIRMWARE!!
 +</code>
 +
 +and you cannot access the bootloader menu (i.e. no tftp possible). The only way to load a new firmware is //download mode// (aka upgrade mode in the nslu2)
 +
 +==== Download Mode ====
 +
 +Power off the device, hold the reset button while powering on and wait until the power LED flashes red and green. You may now use a
 +sercomm tool (either [4] or [6]) to load either the vendor firmware or an OpenWRT image.
 +
 +===== OpenWRT Status =====
 + 
 +At the moment (svn trunk r25712) the OpenWRT image doesn't contain a pid2, i.e. you may boot OpenWRT once and get the pid2 error described above on the second run
 +(as the pid2 left from the vendor image got overwritten by the rootfs).
 +
 +Patch [2] will fix this. Patch [3] adds support for the ath_data partition, without it OpenWRT will silently overwrite the calibration data.
 +You may use the file ''openwrt-WAG160Nv2-annex_a-squashfs-web.bin'' or ''openwrt-WAG160Nv2-annex_b-squashfs-web.bin'' with either the sercomm tool ([4] or [6])
 +or the vendor firmware web interface. As it contains a dummy CFE there is a slight chance that the web interface could damage the CFE which would brick your device
 +until you reflash the CFE backup using JTAG.
 +
 +Ethernet access is fine, but WLAN is currently not working as we miss some PCI configuration for the AR9223.
 +
 +===== Links =====
 +  * [1] [[https://forum.openwrt.org/viewtopic.php?id=27801|OpenWRT forum thread]]
 +  * [2] [[https://dev.openwrt.org/ticket/8938|patch for imagetag and Makefile]]
 +  * [3] [[https://dev.openwrt.org/ticket/8953|patch for ath_data flash partition]]
 +  * [4] [[https://github.com/jal2/WAG160Nv2|sercomm tool (Linux)]]
 +  * [5] [[http://www.stud.fit.vutbr.cz/~xproch21/doku.php?id=openwrt-linksys-en.|Tomas' wiki page]]
 +  * [6] [[http://www.nslu2-linux.org/wiki/Main/SercommFirmwareUpdater|NSLU2 sercomm updater]] (Windows)
 +  * [7] [[http://downloads.linksysbycisco.com/downloads/firmware/1224645224484/WAG160Nv2-EU-ANNEXA-ETSI-2.00.20-code.zip|Annex A binary vendor firmware 2.00.20]]
 +  * [8] [[http://downloads.linksysbycisco.com/downloads/firmware/WAG160Nv2-EU-ANNEXB-ETSI-2.00.20-code.zip|Annex B binary vendor firmware 2.00.20]]
 +  * [9] [[http://downloads.linksysbycisco.com/downloads/gplcode/wag160nv2_v2.00.17_eu_annexA,0.tgz|Annex A vendor firmware 2.00.17 source tarball]]
 +  * [10] [[http://downloads.linksysbycisco.com/downloads/gplcode/wag160nv2_v2.00.17_eu_annexB,0.tgz|Annex B vendor firmware 2.00.17 source tarball]]
 +
 +===== Tags =====
 +{{tag>bcm63xx bcm6358}}