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-rw-r--r--src/southbridge/intel/lynxpoint/pcie.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/southbridge/intel/lynxpoint/pcie.c b/src/southbridge/intel/lynxpoint/pcie.c
index 077dcd6573..2da14ed5f0 100644
--- a/src/southbridge/intel/lynxpoint/pcie.c
+++ b/src/southbridge/intel/lynxpoint/pcie.c
@@ -676,6 +676,12 @@ static void pch_pcie_early(struct device *dev)
else
pci_update_config32(dev, 0x100, ~0xfffff, (1 << 29));
+ /* Set L1 Sub-State Cap ID to 1Eh and Next Cap Pointer to None. */
+ if (CONFIG(PCIEXP_L1_SUB_STATE))
+ pci_update_config32(dev, 0x200, ~0xfffff, 0x001e);
+ else
+ pci_update_config32(dev, 0x200, ~0xfffff, 0);
+
if (is_lp)
pci_or_config32(dev, 0x100, 1 << 29);