Re: [PATCH] drivers/block/xsysace - replace in(out)_8/in(out)_be16/in(out)_le16with generic iowrite(read)8/16(be)

From: Grant Likely
Date: Thu Feb 07 2013 - 12:16:45 EST


On Thu, Feb 7, 2013 at 4:56 PM, Alexey Brodkin
<Alexey.Brodkin@xxxxxxxxxxxx> wrote:
> On 02/07/2013 08:44 PM, Grant Likely wrote:
>> So, if I'm correct that means that for the data port (specifically
>> copying between RAM and the data port) using ioread16/iowrite16 on the
>> data port results in the correct behaviour. It also means that LE
>> support in the current driver is broken.
>
> That matches my earlier note when I wrote that for correct work on LE (note
> I'm on ARC, not PPC/MB) I needed to use "io{read|write}16" in
> "ace_data{in|out}_le16".
>
> With original "io{read|write}16be" instead data was corrupted.

In which case your bug-fix patch should drop the
ace_datain_le16/ace_dataout_le16 variants entirely and use the be16
ones for both (renaming appropriately).

g.

--
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
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