[U-Boot] [PATCH 3/3] nds32: asm/io.h: add __iormb and __iowmb support

[Marek Vasut]

> This patch add required __iormb and __iowmb to io.h.
> This also fix some misbehavior to periphal drivers.
> 
> This io.h has been fixed with referencing arm/include/asm/io.h.
> 
> Signed-off-by: Macpaul Lin <macpaul at andestech.com>

Hi,

can you possibly implement those as inline functions ? It'd be also great if you 
could convert the other macros to inline functions.

Thanks!