#11969: EOC-1650 Squashfs RootFS not working
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Reporter: djanice1980@… | Owner: developers
Type: defect | Status: new
Priority: high | Milestone: Barrier Breaker 14.07
Component: packages | Version: Trunk
Resolution: | Keywords:
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Comment (by anonymous):
Hardware investigation reveals the EOC1650 board has an AND gate which
will gate off the CS line to the flash chip when GPIO 3 is low. This
blocks attempts to read or write the flash.
Early in the booting, the software should reserve GPIO 3 and configure it
as an output and set it high. Presently the software assumes it is an LED
and initializes it low to turn the LED off. Booting then fails because
the JFFS filesystem is not accessible.
I've hardware modified mine to bypass the gate. This allows it to run the
distribution 14.07rc3 binary directly. The hardware mod which seems
simplest to do is to remove R159 and move it onto the blank pads for R161.
These parts are on the other side of the board under the flash chip, so
you will need to remove the internal antenna for access.
With the gate bypassed, GPIO 3 is a don't care to the flash chip and can
be used for general purposes. It is available on pin 2 of U11.
--
Ticket URL: <https://dev.openwrt.org/ticket/11969#comment:13>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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