[PATCH v6 0/3] Updated Cortex-M3 series

Hi Will,

On Wed, Sep 26, 2012 at 07:03:49PM +0100, Will Deacon wrote:

On Tue, Sep 25, 2012 at 04:00:26PM +0100, Uwe Kleine-K?nig wrote:

quoted

On Tue, Sep 25, 2012 at 03:47:26PM +0100, Jonathan Austin wrote:

quoted

Looking at the patch series at a very superficial level, I wonder why
you've chosen not to include any Kconfig/NVIC support at this stage,
especially as you've posted some before and there appears to be
something (presumably) working in your efm32 branch...

It would be a shame to spend time on merging the basic support if there
are issues that mean the interrupt support won't follow.

I plan to expand common/gic.c for interrupt support. Currently I don't
do much though because getting feedback and the changes into mainline is
quite hard and I don't want to spend time now and hear later that I did
it wrong or something. So I put my efforts on hold and only ping from
time to time.  :-(

My personal view is that merging the code without support for interrupts is
fairly pointless, so the nvic code should certainly be included. I
wouldn't worry too much about merging it with gic.c initially. That can come

That would be ok for me, too.

later, especially as we'll need to prise the gic into drivers/ at some point
(it should be shared with arm64).

I think one reason for the lack of feedback is the inability for people to
run this code themselves. I believe Jonny was trying to get started with an
FPGA / simulation, but some hardware would be great if there's any available...

I think you can order the efm32 devboard[1] via the usual channels.
I don't know if Energymicro has interest to give out some boards into
the community at an reduced price. I will ask.

Best regards
Uwe

[1] http://www.energymicro.com/tools/efm32-giant-gecko-development-kit

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Pengutronix e.K.                           | Uwe Kleine-K?nig            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |