Date: Sun, 2 Jun 2013 13:16:11 +0100 From: Andrew Turner <andrew@fubar.geek.nz> To: Warner Losh <imp@bsdimp.com> Cc: freebsd-arm@freebsd.org Subject: Re: Cortex A50 Series? Message-ID: <20130602131611.5fd959af@bender.Home> In-Reply-To: <3F4EA2FC-FC2D-471E-8133-1D3AF603F908@bsdimp.com> References: <CANq260sD69KMEDRGfR1Ck1ktXTEyKv4QCrhsXxutaOF2iXFKTw@mail.gmail.com> <20130530091525.00b5be20@bender.Home> <3F4EA2FC-FC2D-471E-8133-1D3AF603F908@bsdimp.com>
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On Thu, 30 May 2013 07:57:47 -0600 Warner Losh <imp@bsdimp.com> wrote: > > On May 30, 2013, at 2:15 AM, Andrew Turner wrote: > > > On Wed, 29 May 2013 10:24:02 -0500 > > Matthew Alton <matthew.alton@gmail.com> wrote: > > > >> Hi, everybody. Is there any work underway to port FreeBSD to the > >> ARM Cortex A-50 series 64-bit CPUs? I would like to help with > >> this. > >> > >> Thanks! > >> > > > > There is not support for AArch64 yet. I have started looking at it, > > however this is still in the early stages as not all required > > documentation was available from ARM, for example how to initialise > > the MMU. I can figure out some of this from Linux but not the > > meaning of some of the magic numbers they used. > > There's also a port being done by Semihalf that's under NDA with > access to simulators and such until certain chips ship, I've been > told. Is anyone from Semihalf able to comment on this? If this is the case it would be useful if the code could be made public as there is: 1. A Linux port 2. Support in llvm, gcc and binutils 3. A publicly available AArch64 simulator [1] My understanding is various companies are working on designing silicon with the 64-bit cores, it would be useful if we could have preliminary support before they are released rather than waiting years, as happened with armv6. Andrew [1] http://www.arm.com/products/tools/models/fast-models/foundation-model.php
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