whoover
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Re: Linaro

Thu Aug 25, 2011 11:42 am

Any plans for Raspberry Pi + Linaro?

http://www.linaro.org

ShiftPlusOne
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Re: Linaro

Thu Aug 25, 2011 11:58 am

Wouldn't you need to ask them?

whoover
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Re: Linaro

Thu Aug 25, 2011 12:21 pm

Not if there were contributors coming from the Raspberry Pi community. It's a collaborative effort, right?

ShiftPlusOne
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Re: Linaro

Thu Aug 25, 2011 12:38 pm

I don't know, seems too managed and bureaucratic to just jump in.

Svartalf
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Re: Linaro

Thu Aug 25, 2011 4:42 pm

Heh... We're going to need BSP-ish information from the R-Pi bunch before anyone is going to be making embedded distributions for it; even Linaro. I suspect they'll be in on top of it if it takes off; but doing things for a given platform takes resources and unless this goes a bit of a distance or furthers their position, I don't see someone like Linaro initially in on this. Angstrom or Yocto/MeeGo, maybe.

Oxwivi
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Re: Linaro

Fri Dec 09, 2011 8:09 pm

Possibly resurrecting a dead thread here, but is there any possibility of the Foundation working with Linaro? Might help in writing and maintaining drivers and stuff for R-Pi. (On a selfish note, it'd mean Ubuntu would get ported to R-Pi faster) :P

Svartalf
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Re: Linaro

Fri Dec 09, 2011 8:30 pm

Ubuntu won't be porting their distribution to the R-Pi. They're explicitly targeting ARMv7 and the R-Pi's an ARMv6 variant. Linaro might be workable. As it stands, I've just got to sit down and wire in a patchset acceptable to OE-Core from what's been publicly provided to get a baseline BSP set for OE-Core/Yocto out the door.

asb
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Re: Linaro

Fri Dec 09, 2011 11:28 pm

Linaro are really targetting ARMv7+. In addition, Broadcom aren't a member so although many Linaro engineers may be friendly to the project and we may benefit from lots of the work Linaro do, I can't imagine it becoming an official Linaro supported platform.

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abishur
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Re: Linaro

Sun Dec 11, 2011 5:17 am

Why would broadcom not being a member affect the raspberry pi board?
Dear forum: Play nice ;-)

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cnxsoft
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Re: Linaro

Sun Dec 11, 2011 6:52 am

Linaro is a non-profit that get sponsored by their members (Freescale, TI, ST Ericsson etc..) . If Broadcom was a member and had their own development board (Which R-Pi is not) then Linaro would be involved in porting BCM 2835 platform to Ubuntu.

But that's not the case and I'm fine just getting a Fedora/Debian optimized distribution.

hstubbs3
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Re: Linaro

Sun Dec 11, 2011 8:06 am

Even if Ubuntu is explicitly targeting ARMv7, shouldn't it be possible to port it down to ARMv6 ? like automated assembly conversion for the additional instructions? or emulation for them??

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abishur
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Re: Linaro

Sun Dec 11, 2011 4:44 pm

Thanks for the clarification cnx!
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Blars
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Re: Linaro

Mon Dec 12, 2011 4:56 pm

Quote from hstubbs3 on December 11, 2011, 08:06
Even if Ubuntu is explicitly targeting ARMv7, shouldn't it be possible to port it down to ARMv6 ? like automated assembly conversion for the additional instructions? or emulation for them??
All you would really need to do is recompile everything, with occasional changes
in compiler options. But since Ubuntu is based on Debian, it would be easier to
just port whatever you want from Ubuntu to Debian running on your pi.

obarthelemy
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Re: Linaro

Mon Dec 12, 2011 5:36 pm

You would also need to document it, support it, update it... I know: boring stuff !

Svartalf
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Re: Linaro

Mon Dec 12, 2011 7:15 pm

Quote from hstubbs3 on December 11, 2011, 08:06
Even if Ubuntu is explicitly targeting ARMv7, shouldn't it be possible to port it down to ARMv6 ? like automated assembly conversion for the additional instructions? or emulation for them??

You won't be doing conversion/emulation. ARMv7's real difference is explicit superscalar operation and NEON as SIMD capabilities. The only thing you'll be doing is recompiling everything to not expect either. In truth, there's little magic with Ubuntu that you couldn't re-do or find better in some other Debian based distribution. It's only really a name, combined with a company supporting what gets rolled out to the public- and of late, they've made a bunch of Apple-like pushy moves that I question the wisdom of.

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