Re: [beagleboard] Re: USB EHCI problems

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Hi

On Sat, 15 Aug 2009, Siarhei Siamashka wrote:

> But this wiki page has comment:
> "Enables SmartReflex autocompensation on VDD2 (Note: This feature can only be 
> tested on a ES3.1 silicon):
> # echo 1 > /sys/power/sr_vdd2_autocomp"
> 
> And AFAIK beagleboard revision C has ES3.0 silicon. So no luck here. Or can
> something still be done?

It should be possible to enable SmartReflex on <ES3.1, but the SR register 
values need to be programmed at runtime.  (ES3.1 has the SR register 
values blown in to eFUSE OTPROM)

As far as I know, only TI has this information, so it's up to them to 
release it.  Although one of the device vendor kernel patches/tarballs 
might have something useful here - I haven't looked recently.


- Paul
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