Subject: [PATCH 6/8] arm: mach-armada: add support for Armada XP board with device tree

From: [email-masked] (Ben Dooks)
Date: Tue, 15 May 2012 15:35:03 +0100

On 15/05/12 15:25, Arnd Bergmann wrote:
> On Tuesday 15 May 2012, Thomas Petazzoni wrote:
>> Le Tue, 15 May 2012 14:53:45 +0100,
>> Ben Dooks<[email-masked]>  a ?crit :
>>
>>> Since the two board support files are identical, except for the names
>>> they print, I'd say this is the job of one file. It can always be
>>> split later.
>>
>> The initial motivation for keeping two files here is that the two SoC
>> have a different number of PCIe memory areas, and those areas are
>> typically mapped in ->map_io(). However:
>>
>>   * Maybe those mappings can be done using a normal ioremap() rather
>>     than in ->map_io(), according to DT informations (but most other ARM
>>     SoC support at the moment seem to do PCI mappings using static
>>     mappings in ->map_io)
>
> I'm pretty sure we can use ioremap for new PCI implementations now.
> Also, you can scan the device tree in map_io() if necesary, to see which
> PCIe ports are enabled.

To be honest, if you need it, then it'd be a good idea to fix anyway.

And at worst you can always construct map_desc entries on the stack
and call iotable_init()

-- 
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius