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| author | Tejun Heo <tj@kernel.org> | 2010-06-17 11:42:22 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-07-01 15:34:46 -0400 |
| commit | c6353b4520788e34098bbf61c73fb9618ca7fdd6 (patch) | |
| tree | 89146e7b8e282b907021bae657b4bf18c74d9858 /drivers/ata/ahci.c | |
| parent | f9ce889b8f8384ee29e1be4b34091a932e6e40f3 (diff) | |
| download | linux-c6353b4520788e34098bbf61c73fb9618ca7fdd6.tar.gz linux-c6353b4520788e34098bbf61c73fb9618ca7fdd6.tar.bz2 linux-c6353b4520788e34098bbf61c73fb9618ca7fdd6.zip | |
ahci,ata_generic: let ata_generic handle new MBP w/ MCP89
For yet unknown reason, MCP89 on MBP 7,1 doesn't work w/ ahci under
linux but the controller doesn't require explicit mode setting and
works fine with ata_generic. Make ahci ignore the controller on MBP
7,1 and let ata_generic take it for now.
Reported in bko#15923.
https://bugzilla.kernel.org/show_bug.cgi?id=15923
NVIDIA is investigating why ahci mode doesn't work.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Cc: stable@kernel.org
Reported-by: Anders Østhus <grapz666@gmail.com>
Reported-by: Andreas Graf <andreas_graf@csgraf.de>
Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
Reported-by: Damien Cassou <damien.cassou@gmail.com>
Reported-by: tixetsal@juno.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/ahci.c')
| -rw-r--r-- | drivers/ata/ahci.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 8ca16f54e1ed..f2522534ae63 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1053,6 +1053,16 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable) return -ENODEV; + /* + * For some reason, MCP89 on MacBook 7,1 doesn't work with + * ahci, use ata_generic instead. + */ + if (pdev->vendor == PCI_VENDOR_ID_NVIDIA && + pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA && + pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE && + pdev->subsystem_device == 0xcb89) + return -ENODEV; + /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode. * At the moment, we can only use the AHCI mode. Let the users know * that for SAS drives they're out of luck. |