Messages in this thread | | | Date | Sat, 13 Jan 2001 14:42:36 +0100 | From | Vojtech Pavlik <> | Subject | Re: ide.2.4.1-p3.01112001.patch |
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On Sat, Jan 13, 2001 at 02:43:30AM +0000, davej@suse.de wrote:
> > |The system is an AMD K6-3 on a FIC PA-2013 mobo with 3 IDE disks. The > > |size of hda is 4.3 GB, the size of hdb is 854 MB and the size of hdc is > > |1.2 GB. Hdd is an IDE CDROM drive > > > > I think its significant that two reports I have are FIC PA-2013 but not all. > > What combination of chips is on the 2013 ? > > The FIC PA-2013 is one of the stranger types of MVP3. > (A mixture of 82c597 host bridge and 82c598 PCI bridge).
598 + 586b
> As discussed some time ago on this list, there are some of these > boards, which initially seem to be an MVP3, but have the host bridge ID > set to an VP3. (Real reasoning behind this never figured out).
Windows driver compatibility, so that VP3 drivers would work on MVP3 as well.
> 2.4 has code in the pci quirks to disable the register which makes > the chip masquerade as a VP3, and forces it to identify itself as > an MVP3 part. I'm curious whether this has an interaction here.
This doesn't do anything but change the ID so that Linux drivers are not confused anymore. This caused a lot of trouble in 2.2, especially with the old VIA IDE driver.
> I have a list of known 'hybrid' boards, and known true (both halves) MVP3 > boards and also a collection of lspci -xxx outputs from a selection of > them. If anyone wants any of this stuff, shout and I'll put it up > for ftp/www.
Actually, the definitions of what's a 'true VIA xxx chipset' change over time, as VIA upgrades the southbridges in the specs. You'll now fing that the VPX chipset is 587vpx + 586b, but when released the 587vpx was coupled with the old 586 south.
Fortunately all these chips use PIIX-compatible extensions to the PCI bus, so they are all interchangeable to some degree.
> I'm curious if all of the other boards in Alans bug reports also > fall into the stranger category.
It's possible. I have a board (VA-503A), which has a masqueraded 598, which identifies itself as 597, and a 686a southbridge. This got the 2.2 ide driver completely confused, for example.
-- Vojtech Pavlik SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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