[U-Boot] [patch 0/3] Improve stability USB memory sticks for the common OHCI USB layer.

[Remy Bohmer]

This series is a set of patches that are required to make USB sticks behave 
robust while using U-Boot on a OHCI host.

Several users complain about ERROR: CTL:TIMEOUT errors while using USB sticks,
and while testing many different USB sticks it showed that some were working
and many don't. It even showed a compiler dependency while debugging this, where
GCC 3.x compilers seemed to work (but not always) and GCC 4.x compilers usually
don't. While debugging this (with a USB analyser of course) it turned out that
U-boot also made several protocol violations that needed to be solved, these
resulted in hanging USB devices and so on.

In a mail thread with Stelian Pop on 28 July it was reported of a known error
on Atmel cores that it did not work.

I tested these series on Atmel AT91SAM9261 Core, with the common OHCI driver,
GCC 4.2.3 (Code Sourcery G++ Lite 2008q1-126)

REMEMBER: U-boot still supports 1 single USB stick at a time...
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