Messages in this thread | | | Date | Mon, 18 Sep 2006 21:49:13 -0700 | From | "Robin H. Johnson" <> | Subject | Re: 2.6.18-rc7-git1: AHCI not seeing devices on ICH8 mobo (DG965RY) |
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On Mon, Sep 18, 2006 at 11:53:39PM -0400, Jeff Garzik wrote: > We can't really know which controllers have a non-linear port mapping, > because that is dependent on both the silicon and whether or not the > chip is connected to port X[0-31]. The BIOS knows this, of course :) I noticed that in my case, when the wrong ioports were probed (base + port_idx*offset) for port_idx being 2/3 - all of the return values were zero, instead of the expected values.
You could probably use this to detect cases where PI claims a port is not present, but it really is.
-- Robin Hugh Johnson E-Mail : robbat2@gentoo.org GnuPG FP : 11AC BA4F 4778 E3F6 E4ED F38E B27B 944E 3488 4E85 [unhandled content-type:application/pgp-signature] | |