Date: Sat, 15 Dec 2012 18:32:55 -0700 From: Ian Lepore <freebsd@damnhippie.dyndns.org> To: Warner Losh <imp@bsdimp.com> Cc: freebsd-arm@freebsd.org, ticso@cicely.de Subject: Re: SAM9G45 (was: sheevaplug boot from nandfs hangs) Message-ID: <1355621575.1198.100.camel@revolution.hippie.lan> In-Reply-To: <B326EABF-5785-436B-9089-0D71A0EC0CC6@bsdimp.com> References: <op.wo8dciyp8527sy@212-182-167-131.ip.telfort.nl> <1355364418.87661.489.camel@revolution.hippie.lan> <op.wpc9v5ew8527sy@212-182-167-131.ip.telfort.nl> <op.wpdc7xlc8527sy@212-182-167-131.ip.telfort.nl> <1355595537.1198.72.camel@revolution.hippie.lan> <20121216000839.GS16564@cicely7.cicely.de> <1355619852.1198.98.camel@revolution.hippie.lan> <B326EABF-5785-436B-9089-0D71A0EC0CC6@bsdimp.com>
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On Sat, 2012-12-15 at 18:27 -0700, Warner Losh wrote: > On Dec 15, 2012, at 6:04 PM, Ian Lepore wrote: > > > On Sun, 2012-12-16 at 01:08 +0100, Bernd Walter wrote: > >> On Sat, Dec 15, 2012 at 11:18:57AM -0700, Ian Lepore wrote: > >>> Wow, this is all very familiar. I had this exact situation a couple > >>> months ago as I was trying to get freebsd running on my pico-sam9g45 > >> > >> You have a SAM9G45 running? > >> > > > > Yeah, this board: http://www.mini-box.com/pico-SAM9G45-X > > > > The mci driver is stuck in "1 sector at a time" mode (slow) because all > > the workarounds for the rm9200 errata seem to interfere with the new > > less-buggy mci hardware. I think I just need to write a new driver from > > scratch for the new hardware rev. I've also got ehci working for it. > > The G45 also has newer MCI control (with different DMA) than the old RM9200 or the SAM9260 boards. > > > I did some pretty ugly stuff in the at91 directory to get it going. I > > was just hacking to get it working, then I was going to work with Warner > > to clean up what I had done and get it committed, but both his and my > > lives got busy and nothing much has happened for 2 months now. But it > > does sit here on my desk running just fine (and notably not ever > > crashing or anything). Pretty much I've been using it when I need to > > see a freebsd 10 manpage, but not much else. :) > > I've wanted to do more, and had planned on using my G45 for my sprinkler control panel (which would include LCD support), but $WORK has been kinda busy, and life has been over-full... > > > I heard a rumor that the hardware guys at work are taking a look at > > using a G45 for an upcoming project. If that happens, that'll ensure a > > better mci driver gets written. > > Yea, if I don't beat you to it... > > > If you need a patchset and are willing to deal with the ugly half-baked > > nature of what I've got, just let me know. > > Has it changed? I have no idea what I last sent you, but I notice that in my pico sandbox I've got some changes checked in to mercurial and a bunch of uncommitted changes too, so you've probably not seen the latest. -- Ian
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