Hi Marc, > Is it possible to use the IDE-Interface in UDMA2 mode with the TQM5200?
As far as I can remember, there were always problems reported on the PowerPC mailing list in connection to using ATA with DMA modes (e.g. [1]). Our latest experiences with 5200B shows that you may be able to get around the problems by disabling bestcomm prefetching and XLB snooping altogether. Yes, I know what that does to performance ;) [...] > Is this a kernel config issue, or a mismatch Denx-Kernel / > Debian-hdparm, or is it just not possible with the TQM5200? In the meantime all of our relevant changes have been merged into upstream, so you should try with the latest and greatest kernel from mainline and report problems on the regular PowerPC mailing list: http://dir.gmane.org/gmane.linux.ports.ppc64.devel "PowerPC developers ML" <[email protected]> Best wishes Detlev [1] http://article.gmane.org/gmane.linux.ports.ppc64.devel/50509 -- Math and Alcohol don't mix, so... PLEASE DON'T DRINK AND DERIVE [Motto of the society: Mathematicians Against Drunk Deriving] -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: [email protected] _______________________________________________ eldk mailing list [email protected] http://lists.denx.de/mailman/listinfo/eldk
