RFC Cortex-M3 support
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Cover letter [RFC PATCH 00/11] Cortex-M3 support
Quoted 22 lines · Uwe Kleine-K?nig
Quoted 11 lines · Uwe Kleine-K?nig
this series is mostly a port of patches done by Catalin Marinas for 2.6.33. It's based on 3.3-rc1. There are still a few rough edges and I'm sure I'm not aware of all of them as this deep architecture stuff is mostly news for me. Some things are noted in the respective patches, I'm sure you can find more.
My target machine is the EFM32 Giant Gecko by Energy Micro and my complete tree can be found at
git://git.pengutronix.de/git/ukl/linux.gitefm32Quoted 7 lines
(with a gitweb being available at
http://git.pengutronix.de/?p=ukl/linux.git;a=shortlog;h=efm32).
I look forward to your comments.
I didn't get much comments apart from a few trivial ones. I'd like to plan how to go forward here.
Quoted 6 lines
Catalin, Russell, I guess it's just lack of time on your side that you didn't comment?
There are a few things to fix and follow up (e.g. platform support, ftrace, adapt unwinding to the v7m model), but I first want to see the base patches in before I invest the time to address these.
I improved a few things, most notably I fixed a stack overflow. Other than that the following changes are included, too:
- update to 3.3-rc3
- only check bit 3 of lr to determine which mode the machine was in when the current exception triggered
- several updates to the efm32 platform (that should IMHO only go in when the M3 support is available in mainline)
I'd be really happy to get some feedback on Catalin's and my patches and will repost the patches I think are mature enough to go in for a start.
The updated and complete stack is available from the URLs above.
Best regards
Uwe
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Pengutronix e.K. | Uwe Kleine-K?nig | Industrial Linux Solutions | http://www.pengutronix.de/ |