From: Bjørn Mork <bjorn@xxxxxxx>
Date: Thu, 01 Nov 2012 14:38:29 +0100
> Felipe Balbi <balbi@xxxxxx> writes:
>
>> btw, only alpha and x86 seem to be providing all of those, but if you
>> look into our documentation, it's said that drivers are supposed to use
>> write/read{b,w,l,q} for all memory-mapped io. I'd expect all platforms
>> to provide those even if just to allow compilation of drivers.
>
> Only if HAS_IOMEM is true, I believe.
This is correct.
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