Hi, Actually, I have taken the Poulsbo function as source for the tunnel creek support function. AFAIK, disabling the prefetch mechanism should make sure we always get the correct values when reading status registers or flash data for verify.
If that's any help, I have taken our board and tested flashrom with and without clearing prefetch, and both versions seem to work. Best regards, Ingo Es gelten unsere Allgemeinen Leistungsbedingungen die unter http://www.msc-ge.com/alb abrufbar sind. Our standard terms and conditions apply which are available under http://www.msc-ge.com/alb . MSC Vertriebs GmbH Sitz der Gesellschaft: Industriestrasse 16, 76297 Stutensee Handelsregister: Mannheim, HRB Nr. 10 3631 Geschäftsführung: Lothar Kümmerlin, Rüdiger Kuhn, Silvano Geissler, Johannes Alberti Umsatzsteuer ID Nr.: DE 143 585 507 WEEE Reg. Nr. : DE 31011852 Gleichmann & Co. Electronics GmbH Sitz der Gesellschaft: Schraderstrasse 44, 67227 Frankenthal Handelsregister: Ludwigshafen, HRB Nr. 21305 Geschäftsführung: Lothar Kümmerlin, Johannes Alberti, Klaus Hagenacker Umsatzsteuer ID Nr. : DE 148 421 329 WEEE Reg. Nr.: DE 72277043 Diese E-Mail enthält vertrauliche und/ oder rechtlich geschützte Informationen. Wenn Sie nicht der beabsichtigte Empfänger sind, informieren Sie bitte sofort den Absender und löschen Sie diese E-Mail. The information contained in this message is confidential and/ or protected by law. If you are not the intended recipient, please contact the sender and delete this message. -----Ursprüngliche Nachricht----- Von: Stefan Tauner [mailto:[email protected]] Gesendet: Freitag, 24. August 2012 03:54 An: Feldschmid, Ingo Cc: [email protected] Betreff: Re: [flashrom] [PATCH] Add Spi interface support for Tunnel Creek chipset (3) hello ingo, i am trying to refactor your patch and merge it with the poulsbo enable (something i wanted to do before merging your patch, but uwe was faster with committing back then...). i noticed that you try to disable the prefetching and i wonder why. did you have any problems with it? we dont do this for any other intel chipset afaics and i would rather leave it alone/use it. On Mon, 5 Sep 2011 09:58:14 +0200 "Feldschmid, Ingo" <[email protected]> wrote: > > + /* Make sure BIOS prefetch mechanism is disabled */ > + old = pci_read_byte(dev, 0xd9); > + msg_pdbg("BIOS Prefetch Enable: %sabled, ", (old & 1) ? "en" : "dis"); > + new = old & ~1; > + if (new != old) > + rpci_write_byte(dev, 0xd9, new); -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
