Messages in this thread | | | Subject | Re: [linux-sunxi] Re: [PATCH 4/4] Add arch count timer node in dts for Allwinner A20(sunxi 7i). | From | Ian Campbell <> | Date | Thu, 12 Sep 2013 16:44:46 +0100 |
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On Thu, 2013-09-12 at 15:57 +0100, Mark Rutland wrote:
> > + interrupts = <1 13 0x308>, > > + <1 14 0x308>, > > + <1 11 0x308>, > > + <1 10 0x308>; > > + clock-frequency = <24000000>; > > If at all possible, your bootloader should set CNTFREQ, and > clock-frequency should only be used as a last resort when it's > impossible to get it to set CNTFREQ. It's not possible to set CNTFREQ > from the non-secure side, so guests (which might not be Linux, and might > not handle DT in the same way) may see a completely wrong frequency > value.
https://groups.google.com/forum/#!topic/linux-sunxi/56Wj1IT-pKU
Ian.
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