diff options
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/intel/bd82x6x/pcie.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/southbridge/intel/bd82x6x/pcie.c b/src/southbridge/intel/bd82x6x/pcie.c index da6e00750191..2658fd31ef2f 100644 --- a/src/southbridge/intel/bd82x6x/pcie.c +++ b/src/southbridge/intel/bd82x6x/pcie.c @@ -126,17 +126,19 @@ static void pch_pcie_pm_early(struct device *dev) reg32 &= ~(1 << 31); /* Disable PME# SCI for native PME handling */ pci_write_config32(dev, 0xd8, reg32); + cap = pci_find_capability(dev, PCI_CAP_ID_PCIE); + /* Adjust ASPM L1 exit latency */ - reg32 = pci_read_config32(dev, 0x4c); - reg32 &= ~((1 << 17) | (1 << 16) | (1 << 15)); + reg32 = pci_read_config32(dev, cap + PCI_EXP_LNKCAP); + reg32 &= ~PCI_EXP_LNKCAP_L1EL; if (RCBA32(CIR9) & (1 << 16)) { /* If RCBA+2320[15]=1 set ASPM L1 to 8-16us */ - reg32 |= (1 << 17); + reg32 |= (4 << 15); } else { /* Else set ASPM L1 to 2-4us */ - reg32 |= (1 << 16); + reg32 |= (2 << 15); } - pci_write_config32(dev, 0x4c, reg32); + pci_write_config32(dev, cap + PCI_EXP_LNKCAP, reg32); /* * PCI device enumeration hasn't started yet, thus any downstream device here @@ -147,8 +149,6 @@ static void pch_pcie_pm_early(struct device *dev) child = pcidev_path_behind(dev->link_list, PCI_DEVFN(0, 0)); /* Set slot power limit as configured above */ - cap = pci_find_capability(dev, PCI_CAP_ID_PCIE); - reg32 = pci_read_config32(dev, cap + PCI_EXP_SLTCAP); if (pci_is_hotplugable(dev)) reg32 |= (PCI_EXP_SLTCAP_HPS | PCI_EXP_SLTCAP_HPC); |