[U-Boot] [PATCH] p1022ds: fix switching of DIU/LBC signals

Timur Tabi timur at freescale.com
Thu Dec 2 00:28:28 CET 2010


Scott Wood wrote:
>> You told me that since I'm doing a read following a write to uncached memory,
>> > that I don't need a sync.
> No, I was talking about a write followed by a read, to the same location.

That's what I said. Read following write == write followed by read.

> out_8 should be fixed to behave like the other accessors.

Ok, but I'm not using any of the I/O accessors, so this doesn't affect me.

I just need to make sure that the read is executed after the write, and that the
read completes before I continue.  So I should I put an isync between the write
and the read, and a sync after the read?

-- 
Timur Tabi
Linux kernel developer at Freescale



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