2.6.32-stable review patch. If anyone has any objections, please let us know.
------------------ From: Tejun Heo <[email protected]> commit c6353b4520788e34098bbf61c73fb9618ca7fdd6 upstream. 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 <[email protected]> Cc: Peer Chen <[email protected]> Reported-by: Anders Ãsthus <[email protected]> Reported-by: Andreas Graf <[email protected]> Reported-by: Benoit Gschwind <[email protected]> Reported-by: Damien Cassou <[email protected]> Reported-by: [email protected] Signed-off-by: Jeff Garzik <[email protected]> Cc: Nobuhiro Iwamatsu <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/ata/ahci.c | 10 ++++++++++ drivers/ata/ata_generic.c | 6 ++++++ include/linux/pci_ids.h | 1 + 3 files changed, 17 insertions(+) --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -3037,6 +3037,16 @@ static int ahci_init_one(struct pci_dev 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; + /* acquire resources */ rc = pcim_enable_device(pdev); if (rc) --- a/drivers/ata/ata_generic.c +++ b/drivers/ata/ata_generic.c @@ -169,6 +169,12 @@ static struct pci_device_id ata_generic[ { PCI_DEVICE(PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558), }, { PCI_DEVICE(PCI_VENDOR_ID_CENATEK,PCI_DEVICE_ID_CENATEK_IDE), }, { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO), }, + /* + * For some reason, MCP89 on MacBook 7,1 doesn't work with + * ahci, use ata_generic instead. + */ + { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA, + PCI_VENDOR_ID_APPLE, 0xcb89, }, { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), }, { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), }, /* Must come last. If you add entries adjust this table appropriately */ --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1265,6 +1265,7 @@ #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE 0x0759 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_SMBUS 0x07D8 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP79_SMBUS 0x0AA2 +#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA 0x0D85 #define PCI_VENDOR_ID_IMS 0x10e0 #define PCI_DEVICE_ID_IMS_TT128 0x9128
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