Date: Sun, 21 Sep 2008 13:46:17 -0500 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: Maxim Sobolev <sobomax@FreeBSD.org> Cc: freebsd-ppc@FreeBSD.org Subject: Re: Call for testers: Apple ATA DMA Message-ID: <48D69679.1080701@freebsd.org> In-Reply-To: <48D3AD50.8070505@freebsd.org> References: "b9c23c9f0809100322n1659cb36oa05acf2f13f3c7e1@mail.gmail.com" <48D389EE.9000207@FreeBSD.org> <48D3AD50.8070505@freebsd.org>
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Nathan Whitehorn wrote: > Maxim Sobolev wrote: >> Nathan, >> >> Do you have any news regarding the patch in question? I hope you did >> not give up, the lack of ATA DMA support is IMHO probably the biggest >> issue for the FreeBSD on PowerMacs now. The hardware is very >> attractive for SOHO applications, so that having this feature is >> important. > Right now, modes up to WDMA2 work. The UDMA modes cause hangs for > reasons not entirely clear. I'm investigating it, but am in the > Netherlands at the moment and it will have to wait until I get back. I now have UDMA modes working on my Shasta controller -- there was a stupid bug where I forgot to set the device to accept transfers in the selected mode. Please give this patch a test: I expect that UDMA modes now work everywhere. http://people.freebsd.org/~nwhitehorn/apple-ata-dma.patch -Nathan
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