[PATCH 1/3] add USB setup code for 8349emds PB

[Kumar Gala]

On Feb 7, 2007, at 4:44 AM, Arnd Bergmann wrote:

> On Wednesday 07 February 2007 11:10, Li Yang-r58472 wrote:
>> How about a non-PCI ehci driver for all architectures (such as  
>> arm, m68k)?
>> Then, platform_bus is a more generic interface than of_platform.
>
> Yes, that's right. The main difference is that if you scan all of  
> devices
> at boot time, you already have a node for the USB controller and you
> shouldn't need to create another node that does not reflect the actual
> hierarchy in the linux device tree.
>
> A platform_device is really meant to be 'something that can't be  
> probed
> but we know it is there', like the interrupt controller on a PC.
> With the of device tree, we can probe anything, so ideally, we should
> not need to create any platform devices at all.

I think the concern is how to handle the case on something like ARM w/ 
o the device-tree.  We can support both mechanisms in the driver

However, the bigger issue is getting so we can remove arch/ppc  
consumers.

- k