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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-03-25 18:31:35 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-03-25 18:31:35 +0000 |
| commit | 8937b7349ca9e25a02b2a72ccb7fba404ddedc5b (patch) | |
| tree | 434ffe23d318f8af55850a26c3431ce8b82ab6f4 /drivers/pci/quirks.c | |
| parent | 997302259f386bca8fe1db67c50296ca426c438f (diff) | |
| parent | ffe7f95bb1a4d1e9ca5d252445dc38476e1a208e (diff) | |
| download | kernel_samsung_smdk4412-8937b7349ca9e25a02b2a72ccb7fba404ddedc5b.zip kernel_samsung_smdk4412-8937b7349ca9e25a02b2a72ccb7fba404ddedc5b.tar.gz kernel_samsung_smdk4412-8937b7349ca9e25a02b2a72ccb7fba404ddedc5b.tar.bz2 | |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index f20d553..92b9efe 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -23,6 +23,7 @@ #include <linux/acpi.h> #include <linux/kallsyms.h> #include <linux/dmi.h> +#include <linux/pci-aspm.h> #include "pci.h" int isa_dma_bridge_buggy; @@ -1749,6 +1750,30 @@ static void __devinit quirk_e100_interrupt(struct pci_dev *dev) } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt); +/* + * The 82575 and 82598 may experience data corruption issues when transitioning + * out of L0S. To prevent this we need to disable L0S on the pci-e link + */ +static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev) +{ + dev_info(&dev->dev, "Disabling L0s\n"); + pci_disable_link_state(dev, PCIE_LINK_STATE_L0S); +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s); + static void __devinit fixup_rev1_53c810(struct pci_dev* dev) { /* rev 1 ncr53c810 chips don't set the class at all which means @@ -2097,7 +2122,7 @@ static void __devinit ht_disable_msi_mapping(struct pci_dev *dev) if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, &flags) == 0) { - dev_info(&dev->dev, "Enabling HT MSI Mapping\n"); + dev_info(&dev->dev, "Disabling HT MSI Mapping\n"); pci_write_config_byte(dev, pos + HT_MSI_FLAGS, flags & ~HT_MSI_FLAGS_ENABLE); @@ -2141,6 +2166,10 @@ static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev) int pos; int found; + /* Enabling HT MSI mapping on this device breaks MCP51 */ + if (dev->device == 0x270) + return; + /* check if there is HT MSI cap or enabled on this device */ found = ht_check_msi_mapping(dev); |