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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-11-25 07:42:03 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-11-25 07:42:03 +0900 |
| commit | 47143b094d4700842e42b0a7cc2548d7ae292690 (patch) | |
| tree | ab1e7fb7cdedd29c8a9b953e58110ff3870946e4 /drivers/pci/quirks.c | |
| parent | 0b9466ccea3c4ec363737288dd9467bf978c9c2d (diff) | |
| parent | f02cbbe657939489347cbda598401a56913ffcbd (diff) | |
| download | linux-47143b094d4700842e42b0a7cc2548d7ae292690.tar.gz | |
Merge branch 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
* 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
pci root complex: support for tile architecture
drivers/net/tile/: on-chip network drivers for the tile architecture
MAINTAINERS: add drivers/char/hvc_tile.c as maintained by tile
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index f5c63fe9db5c..6f9350cabbd5 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2136,6 +2136,24 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, quirk_unhide_mch_dev6); +#ifdef CONFIG_TILE +/* + * The Tilera TILEmpower platform needs to set the link speed + * to 2.5GT(Giga-Transfers)/s (Gen 1). The default link speed + * setting is 5GT/s (Gen 2). 0x98 is the Link Control2 PCIe + * capability register of the PEX8624 PCIe switch. The switch + * supports link speed auto negotiation, but falsely sets + * the link speed to 5GT/s. + */ +static void __devinit quirk_tile_plx_gen1(struct pci_dev *dev) +{ + if (tile_plx_gen1) { + pci_write_config_dword(dev, 0x98, 0x1); + mdelay(50); + } +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1); +#endif /* CONFIG_TILE */ #ifdef CONFIG_PCI_MSI /* Some chipsets do not support MSI. We cannot easily rely on setting |