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Date:      Sat, 29 Sep 2012 09:43:43 -0600
From:      Ian Lepore <freebsd@damnhippie.dyndns.org>
To:        Andrew Reilly <areilly@bigpond.net.au>
Cc:        arm@freebsd.org
Subject:   Re: Towards an ARM system-building script
Message-ID:  <1348933423.1113.97.camel@revolution.hippie.lan>
In-Reply-To: <20120929033002.GA18294@johnny.reilly.home>
References:  <DD05E72B9F474BFE96B6A4B050D2A18A@gmail.com> <0DCAC001-FF06-431A-A486-2B50BE913B0D@bsdimp.com> <FAA208C1-2872-4BB6-A7EC-04C757533CA4@kientzle.com> <7E18623F-3945-4EA0-B332-5A5C717B20F0@kientzle.com> <9896AA3E-D8A0-4CE8-8160-4672AA07388F@cheney.net> <6B74ADD7-3266-4919-BEB4-B10E0C1BAB58@kientzle.com> <5679C679-A434-4714-BE61-4DC093DA7F34@kientzle.com> <034F9446-B2FB-44AD-BDEE-4C2FBAC51796@neville-neil.com> <9E070889-190A-42B1-9B46-94B1AEF2C20E@kientzle.com> <B0F429ED-F129-4BF4-9C5D-C32FC589F4A0@bsdimp.com> <20120929033002.GA18294@johnny.reilly.home>

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On Sat, 2012-09-29 at 13:30 +1000, Andrew Reilly wrote:
> As an interested bystander looking for an opportunity to get
> involved, I'm curious: why the emphasis on "armv6" that I've
> seen, regarding these boards that all use processors that are
> ARMv7 architecture devices?  Sure, armv6 is very similar, but
> armv7 is what ARM calls them.
> 
> Cheers,
> 

It's just shorthand... "armv4" in freebsd means v4 and v5, because they
are similar enough that the same code can handle the MMU and interrupts
and traps and so on.  Likewise, armv6 is shorthand for v6 and v7 which
are similar enough to share most of the low-level support code.

-- Ian





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