[Gta04-owner] Same GTA04 - now 33% faster :-)

[NeilBrown]

Sometimes bugs can be really useful.
A patch that went into 3.5 causes the GTA04 to hang whenever the MPU clock
speed is raised to 800MHz.  Apparently something to do with power routing -
don't know the full story yet.

But while investigating this I discovered that my 3.x kernels were not
pushing the GTA04 to 800MHz except for a moment or two at boot.  As soon
as cpufreq is enabled, they drop back to 300MHz or 600MHz and never go back
up again.

So I copied some code from board-omap3beagle.c and now get 800MHz on demand.
The required patches have been published in my 3.5 branches.

So it isn't really that it is now 33% faster, but more that all this time it
has been 25% slower than it should have been.

For further reading:
  http://www.mail-archive.com/linux-omap@vger.kernel.org/msg72674.html

NeilBrown
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