Andrey V. Elsukov wrote:
...
Linux's libata driver has a quirk for VIA AHCI:
/* vt8251 doesn't clear BSY on signature FIS reception,
* request follow-up softreset.
*/
If i right understand it issues softreset for VIA controllers just
after hardreset. And after softreset it is trying to read device
signature.
FreeBSD CURRENT has similar code, but it is disabled by default.
You can try install CURRENT and rebuild ata_ahci driver with AHCI_PM
option.
May be it will help..
I'm glad this came up. When I asked a few weeks ago about SATA Hotplug
support, I was asking because of a board with a VIA SATA controller I
was planning to add drives too, on a JBOD basis.
Perhaps this hack can be backported to 7.x to actually make VIA
controllers useful?
P.S. VIA's SATA RAID BIOS is a pile of poop, don't bother using VIA for
RAID.
cheers
BMS
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