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| author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2008-02-06 01:40:08 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-06 10:41:20 -0800 |
| commit | 445a1d3e24b806bff01e422f0ddadf68e0eb5d0f (patch) | |
| tree | 38d3505ad614ea401bd5dde8eb04295e35970ce8 /drivers/atm/horizon.c | |
| parent | 5d38998ed15b31f524bde9a193d60150af30d916 (diff) | |
| download | linux-445a1d3e24b806bff01e422f0ddadf68e0eb5d0f.tar.bz2 | |
PNP: disable Supermicro H8DCE motherboard resources that overlap SATA BARs
Some Supermicro BIOSes describe a SATA PCI BAR as a motherboard resource.
The PNP system driver claims motherboard resources, and this prevents the
sata_nv driver from requesting it later.
This patch disables the PNP0C01/PNP0C02 resources so they won't be claimed
by the PNP system driver, so they'll available for sata_nv.
This fixes the bugs below, where sata_nv detects only two out of four SATA
drives. The signature includes dmesg lines similar to these:
pnp: 00:09: iomem range 0xdfefc000-0xdfefcfff has been reserved
pnp: 00:09: iomem range 0xdfefd000-0xdfefd3ff has been reserved
pnp: 00:09: iomem range 0xdfefe000-0xdfefe3ff has been reserved
PCI: Unable to reserve mem region #6:1000@dfefd000 for device 0000:80:07.0
sata_nv: probe of 0000:80:07.0 failed with error -16
PCI: Unable to reserve mem region #6:1000@dfefe000 for device 0000:80:08.0
sata_nv: probe of 0000:80:08.0 failed with error -16
References:
https://bugzilla.redhat.com/show_bug.cgi?id=280641
https://bugzilla.redhat.com/show_bug.cgi?id=313491
http://lkml.org/lkml/2008/1/9/449
http://thread.gmane.org/gmane.linux.acpi.devel/27312
This is post-2.6.24 material.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/atm/horizon.c')
0 files changed, 0 insertions, 0 deletions