Date: Thu, 23 May 2013 11:15:49 -0400 From: George Neville-Neil <gnn@freebsd.org> To: Ruslan Bukin <br@bsdpad.com> Cc: arm@freebsd.org Subject: Re: [CFT] Exynos5250 Message-ID: <48222C2A-91C7-431A-BCB4-696956BB6B8F@freebsd.org> In-Reply-To: <20130523150155.GA10587@mail.bsdpad.com> References: <20130523150155.GA10587@mail.bsdpad.com>
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On May 23, 2013, at 11:01 , Ruslan Bukin <br@bsdpad.com> wrote: > Hi! > > I'm happy to introduce freebsd/arm port for Samsung Exynos processors. > THe port covers initial, very limited support for Exynos5250 > and includes: GIC, ARMv7 Generic Timer, USB EHCI, UART. > Clocks still handled by uboot. > > For develop and tests I used Arndale Board and u-boot by linaro > (git://git.linaro.org/boot/u-boot-linaro-stable.git) > > One thing that stumped me for a while is that the interrupt controller > driver, gic.c, do works with Group 0 (secure) type of interrupts, > but u-boot switches them all to be in Group 1 (non-secure). > So I had to switch them back in gic.c. > > Big thanks to ray@ for help and understanding. Thanks, Ray! :) > > code lives here: > http://hg.bsdpad.com/ > > Known problems: > 1. If specify more than 512MB RAM then panic occurs: > panic: kmem_suballoc: bad status return of 3 > 2. SMP code exists, but don't properly works due to some > problems in SMP on arm > Excellent! I may have a board to test this on, and will take a look. Best, George
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