68 lines
1.9 KiB
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68 lines
1.9 KiB
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TP-LINK MR3020
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The TP-LINK MR3020 wireless router has
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* Atheros ar9331 SoC;
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* 32 MiB SDRAM;
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* 4 MiB NOR type SPI Flash Memory;
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* RS232 serial interface (LV-TTL levels on board!);
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* 1 USB interface;
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* 1 Ethernet interfaces;
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* 802.11b/g/n (WiFi) interface;
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* LEDs & buttons.
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The router uses U-Boot 1.1.4 as firmware.
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Running barebox
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---------------
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Barebox can be started from U-Boot using tftp.
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But you have to encode barebox image in a very special way.
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First obtain ``lzma`` and ``mktplinkfw`` utilities.
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The ``lzma`` utility can be obtained in Debian/Ubuntu
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distro by installing lzma package.
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The ``mktplinkfw`` utility can be obtained from openwrt, e.g.::
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$ OWRTPREF=https://raw.githubusercontent.com/mirrors/openwrt/master
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$ curl -OL $OWRTPREF/tools/firmware-utils/src/mktplinkfw.c \
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-OL $OWRTPREF/tools/firmware-utils/src/md5.c \
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-OL $OWRTPREF/tools/firmware-utils/src/md5.h
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$ cc -o mktplinkfw mktplinkfw.c md5.c
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To convert your barebox.bin to U-Boot-loadable image (``6F01A8C0.img``)
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use this command sequence::
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$ lzma -c -k barebox.bin > barebox.lzma
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$ ./FW/mktplinkfw -c -H 0x07200103 -W 1 -N TL-WR720N-v3 \
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-s -F 4Mlzma -k barebox.lzma -o 6F01A8C0.img
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You must setup tftp-server on host 192.168.0.1.
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Put your ``6F01A8C0.img`` to tftp-server directory
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(usual ``/tftpboot`` or ``/srv/tftp``).
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Connect your board to your tftp-server network via Ethernet.
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Next, setup network on MR3020 and run ``6F01A8C0.img``, e.g.::
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hornet> set ipaddr 192.168.0.2
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hornet> set serverip 192.168.0.1
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hornet> tftpboot 0x81000000 6F01A8C0.img
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hornet> bootm 0x81000000
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Links
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-----
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* http://www.tp-link.com/en/products/details/?model=TL-MR3020
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* http://wiki.openwrt.org/toh/tp-link/tl-mr3020
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* https://wikidevi.com/wiki/TP-LINK_TL-MR3020
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See also
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* http://www.eeboard.com/wp-content/uploads/downloads/2013/08/AR9331.pdf
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* http://squonk42.github.io/TL-WR703N/
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