Date: Sat, 28 May 2016 14:40:41 +0200 From: Sylvain Garrigues <sylgar@gmail.com> To: freebsd-arm@freebsd.org Subject: =?utf-8?Q?R=C3=A9p_=3A_Are_there_SPARC_=5Bor_other=5D_aligned_me?= =?utf-8?Q?mory_access_requirements_to_avoid_exceptions=3F_=5Bnow?= =?utf-8?Q?_that_11=2E0=27s_armv6/v7_is_allowing_more_unaligned_a?= =?utf-8?Q?ccesses=5D?= Message-ID: <C6722CF1-A700-43E3-BC0B-2ACD1E9318E1@gmail.com> In-Reply-To: <mailman.62.1464436801.9180.freebsd-arm@freebsd.org> References: <mailman.62.1464436801.9180.freebsd-arm@freebsd.org>
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Hello Ian, > De: Ian Lepore <ian@freebsd.org> >=20 > [=E2=80=A6] > Original rpi is indeed 1176JZF-S, which IS armv6. The differences > between it and armv7 are almost entirely in the cache maintenence > routines, and notably not in handling unaligned access the way we now > configure the hardware. Does that mean we now don=E2=80=99t support the RPI A/B version 1, or = more importantly the Raspberry Pi Zero, which is to my knowledge still = based on 1176JZF-S? I was planning to run FreeBSD on the Pi Zero for an important embedded = project, and would like to know better about the implications you = mentioned of the new way the hardware is now configured, as regards this = =C2=AB old =C2=BB armv6 cpu which doesn=E2=80=99t handle unaligned = access properly. Thank you very much, Sylvain.=
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