David Miller wrote:
From: Daniel Hellstrom <daniel@xxxxxxxxxxx>
Date: Wed, 30 Mar 2011 14:41:45 +0200
I see, however that is almost as bad because that would also require
one driver per core but in the LEON IRQ layer of Linux.
This is absolutely unavoidable since the firmware device tree doesn't
pass along the proper set of IRQs. You have to fixup your tree,
because it is broken.
This is sad, as we have designed all LEON architecture to be Plug&Play
as far as possible, and it will be software that limits it in the end. I
think it is quite uncommon (if not unique) to do plug&play on the most
low-level stuff such as timers and IRQ Controller etc., I believe that
part of the idea with the OpenBoot tree is to provide that low-level
plug&play to Linux and LEON that has true PnP in hardware can not do
that fully. I'm starting to think virtual IRQ is a bad thing.. :)
I will give it another thought tomorrow before doing anything. A part of
me thinks that the bootloader should be modified to report the correct
information, however that requires changes to u-boot as well.
Daniel
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