Messages in this thread | | | Date | Mon, 07 Jan 2008 18:10:29 -0600 | From | Robert Hancock <> | Subject | Re: sata_nv + ADMA + Samsung disk problem |
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Allen Martin wrote: > >>> Dunno about the NVidia version. >> Theirs works rather differently - the GO bit is there, but there's >> another append register which is used to tell the controller >> that a new >> tag has been added to the CPB list. >> >> The only thing we currently use the GO bit for is to switch >> between ADMA >> and port register mode. Could be there's something we need to >> do there, >> though, who knows.. >> > > You shouldn't ever need to touch GO other than the ADMA / legacy mode > switch as you say. > > The NVIDIA ADMA hw is not based on the Pacific Digital core.
Gabor, I just noticed you said that it worked OK in 2.6.20, yet 2.6.22 fails. 2.6.20 had ADMA support as well, so I wonder what change started causing the problem. Would it be possible for you to do a git bisect (or at least try 2.6.21 to try and narrow it down)?
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