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The Linksys WAG200G router has a TI AR7 SoC and a 4MB Flash layout similar to the Netgear DG834v3 router [1]. Below is an example of a successful flash recovery, using a TUMPA, connected to the MIPS EJTAG 2.6 header (JP102) of the router. WAG200G [2] TUMPA [3] Desc Pin Pin Desc ------------------------ nTRST 1 3 nTRST TDI 3 5 TDI TDO 5 13 TDO TMS 7 7 TMS TCK 9 9 TCK nSRST 11 15 RST GND 2 4 GND Note that nSRST is optional to halt the CPU, but is required to probe the flash. For instance, recover the kernel with: $ sudo ./src/openocd -s tcl \ -f interface/ftdi/tumpa.cfg \ -f tools/firmware-recovery.tcl \ -c 'board linksys-wag200g; reset_config srst_only; flash_part kernel /path/to/kernel.bin; shutdown' [1] https://wiki.openwrt.org/toh/linksys/wag200g [2] https://www.linux-mips.org/wiki/JTAG#JTAG_headers [3] http://www.tiaowiki.com/w/TIAO_USB_Multi_Protocol_Adapter_User's_Manual#20_PIN_JTAG_Connector Change-Id: I952ba9f706e2e4f8f95ca03a5fa58f391ca030b6 Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-on: http://openocd.zylin.com/3776 Tested-by: jenkins Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk> |
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firmware-recovery.tcl | ||
memtest.tcl |