Re: [Ksummit-2009-discuss] Representing Embedded Architectures at the Kernel Summit

[Josh Boyer <jwboyer@linux.vnet.ibm.com>]

On Wed, Jun 03, 2009 at 02:45:37PM +0100, Catalin Marinas wrote:
>On Wed, 2009-06-03 at 09:18 -0400, Josh Boyer wrote:
>> On Wed, Jun 03, 2009 at 02:04:46PM +0100, Catalin Marinas wrote:
>> >      * Mixed endianness devices in the same system - this may only need
>> >        dedicated readl_be/writel_be etc. macros but it could also be
>> >        done by having bus-aware readl/writel-like macros
>> 
>> ioread/iowrite{8,16,32} and ioread/iowrite{8,16,32}_be don't suffice here?
>
>Yes, but there there are many drivers that only use readl/writel (and
>arch/arm makes the assumption, maybe correctly, that this is little
>endian only).

readl/writel are little-endian only.

>I think that's useful even if the outcome of such discussion is better
>documentation on the above functions/macros (grepping Documentation/
>doesn't show any reference).

I think we could perhaps start with just writting some of that documentation
and trying to get it into the kernel.  I'm not sure this specific item is
really worth of a KS topic.

josh