[U-Boot] [PATCH v3] ARM: Avoid compiler optimization for usages of readb, writeb and friends.

[Wolfgang Denk]

Dear Dirk Behme,

In message <4D1F1841.5060508 at googlemail.com> you wrote:
>
> Do you like to test the patch in the attachment? I named it 'v4'.

Please send patches inline.

> After some thinking and testing, it seems to me that the volatile 
> optimization issue this patch shall fix is only with the readx() 
> macros. So the idea is to drop all writex() changes done in the v3 
> version of this patch. With dropping the writex() changes, we would 
> drop all issues we discussed with e.g. the GCC statement-expression 
> and the do while workaround, too.

This makes no sense. Even if we experience problems only with read*()
at the moment, we should to the Rigth Thing (TM) and fix both the
read*() and write*() functions.

Please have a look a the patch I just posted,
http://patchwork.ozlabs.org/patch/78056/

Best regards,

Wolfgang Denk

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