On Fri, 2011-03-18 at 21:06 +0100, Arnd Bergmann wrote:
In a perfect world, we would need neither the device tree nor
any platform data at all, because we'd be able to ask the hardware
or the fictionary correct firmware about what the properties
of the hardware are. This works to a surprisingly large extent
on server hardware, but much less so on typical embedded systems.
Properties of the HW per-se but also binding information, ie, what is
connected to what outside of the main bus path (think clock/power
control etc...). Even server / desktop is affected here, and nobody sane
thinks ACPI is a -good- solution here tho it works mostly on x86 :-)
Cheers,
Ben.