From owner-freebsd-ppc@FreeBSD.ORG Fri Aug 28 20:46:16 2009 Return-Path: Delivered-To: freebsd-ppc@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2CB4B106566C for ; Fri, 28 Aug 2009 20:46:16 +0000 (UTC) (envelope-from hselasky@c2i.net) Received: from swip.net (mailfe13.tele2.se [212.247.155.129]) by mx1.freebsd.org (Postfix) with ESMTP id 821D28FC08 for ; Fri, 28 Aug 2009 20:46:15 +0000 (UTC) X-Cloudmark-Score: 0.000000 [] X-Cloudmark-Analysis: v=1.0 c=1 a=MnI1ikcADjEx7bvsp0jZvQ==:17 a=oCJs8q-oAAAA:8 a=6I5d2MoRAAAA:8 a=X9rCK6l3AAAA:8 a=OtmVtXIxIRdPCXlza8QA:9 a=46GkfkVBVSYD_RyVJUN6nbbyGZUA:4 a=jj60i5uE5qAA:10 Received: from [188.126.201.140] (account mc467741@c2i.net HELO laptop.adsl.tele2.no) by mailfe13.swip.net (CommuniGate Pro SMTP 5.2.13) with ESMTPA id 913059384; Fri, 28 Aug 2009 21:46:12 +0200 From: Hans Petter Selasky To: Daan Vreeken Date: Fri, 28 Aug 2009 21:46:27 +0200 User-Agent: KMail/1.11.4 (FreeBSD/8.0-BETA2; KDE/4.2.4; i386; ; ) References: <35914876-0CFF-427B-8F80-B1BEEA5A7A18@semihalf.com> <200908282127.28482.Daan@vehosting.nl> In-Reply-To: <200908282127.28482.Daan@vehosting.nl> X-Face: (%:6u[ldzJ`0qjD7sCkfdMmD*RxpO< =?iso-8859-1?q?Q0yAl=7E=3F=60=27F=3FjDVb=5DE6TQ7=27=23h-VlLs=7Dk/=0A=09?=(yxg(p!IL.`#ng"%`BMrham7%UK,}VH\wUOm=^>wEEQ+KWt[{J#x6ow~JO:,zwp.(t; @ =?iso-8859-1?q?Aq=0A=09=3A4=3A=26nFCgDb8=5B3oIeTb=5E=27?=",; u{5{}C9>"PuY\)!=#\u9SSM-nz8+SR~B\!qBv MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Message-Id: <200908282146.28715.hselasky@c2i.net> Cc: Michal Mazur , Andrew Turner , freebsd-ppc@freebsd.org Subject: Re: FreeBSD/powerpc on MPC5200 X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2009 20:46:16 -0000 On Friday 28 August 2009 21:27:28 Daan Vreeken wrote: > Hi Rafal (and the list), > > On Sunday 24 May 2009 21:15:44 Rafal Jaworowski wrote: > > On 2009-05-23, at 07:21, Andrew Turner wrote: > > > On Fri, 22 May 2009 12:21:01 +0200 > > > > > > Rafal Jaworowski wrote: > > >> On 2009-05-11, at 15:15, Peter Czanik wrote: > > >>> Rafal Jaworowski =EDrta: > > >>>> I'd like to let people know that FreeBSD/powerpc is now able to > > >>>> boot into single user on the Freescale MPC5200 system-on-chip > > >>>> (EFIKA board). The environment is very simplistic: RAM disk based > > >>>> root fs, as > > >>>> there's no peripherals drivers besides serial console and the > > >>>> built- in > > >>>> PIC. See this log: http://people.freebsd.org/~raj/logs/efika.log > > >>> > > >>> Wow, great news! Two questions: > > >>> - are there any plans to support additional devices? > > >> > > >> We don't have immediate plans for other devices drivers, but this > > >> basic support will be merged into SVN, and it would be greatly > > >> welcome to see people help with remaining items. > > > > > > Is there a patch available? I would like to get back to working on the > > > EFIKA. > > > > Preliminary diff against 2009.04.06 HEAD is here: > > http://people.freebsd.org/~raj/patches/powerpc/efika.diff > > > > Comments or questions welcome. Some bits need to be streamlined so > > that all AIM/OF variations work together, and the code has to be > > rebased against up-to-date HEAD. > > I have downloaded your diff and succesfully patched it to -HEAD (checked > out on 2009-08-25). > Right now I'm looking into getting the USB controller working. (That would > allow me to use network & disks all in one go.) > > I have written the OHCI attachment code (inspired by a mix of Warner's > atmel version, mpc5xxx/ic.c and uart_dev_psc.c) and gotten it to > succesfully attach to the OHCI controller when booting the Efika board. > USB is not (yet) working correctly. Near the end of ohci_init(), the board > seems to halt completely for about 30 seconds and after that, the OHCI > controller sets the 'unrecoverable error' flag. > > A complete dmesg dump can be found here : > http://vehosting.nl/pub_diffs/efika-daan-2009-08-28-ohci_attaching_but_fa= il >ing.txt The kernel that produced this can be downloaded here : > http://vehosting.nl/pub_diffs/efika-daan-2009-08-28-ohci_attaching_but_fa= il >ing.kernel > > The files I added/changed to get the attachment of the OHCI controller > to 'work' can be found here : > http://vehosting.nl/pub_diffs/efika-daan-2009-08-28_changed_files.tar.gz > (Warning : Ugly! and full of printf's for now!) > (I could have missed one, let me know if you can't get it to work.) > > The above dmesg shows a number of printf's I've added to ohci.c . My > mutilated version can be found here : > http://vehosting.nl/pub_diffs/efika-daan-2009-08-28_ohci.c > > As you can see, I printf() the interrupt status register at various points > during ohci_init(). The 'unrecoverable error' flag gets set just a couple > of miliseconds after the following command has been executed : > > /* And finally start it! */ > OWRITE4(sc, OHCI_CONTROL, ctl); > > After that OWRITE4(), the board sits for about 30 seconds and then > continues. I'm just guessing what's going on here, but could it be that > (one of?) the endpoint lists isn't properly setup and that the OHCI > controller keeps the CPU from accessing memory while it's racing through > memory following corrupt/invalid 'next' pointers? Maybe busdma is not computing correct physical addresses for the kernel=20 virtual memory loaded into DMA. =2D-HPS