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-rw-r--r--src/soc/intel/broadwell/pcie.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/soc/intel/broadwell/pcie.c b/src/soc/intel/broadwell/pcie.c
index 12d278fce7..db948596a5 100644
--- a/src/soc/intel/broadwell/pcie.c
+++ b/src/soc/intel/broadwell/pcie.c
@@ -559,7 +559,10 @@ static void pch_pcie_early(struct device *dev)
(1 << 29) | 0x10001);
/* Set L1 Sub-State Cap ID to 1Eh and Next Cap Pointer to None. */
- pci_update_config32(dev, 0x200, ~0xffff, 0x001e);
+ if (IS_ENABLED(CONFIG_PCIEXP_L1_SUB_STATE))
+ pci_update_config32(dev, 0x200, ~0xfffff, 0x001e);
+ else
+ pci_update_config32(dev, 0x200, ~0xfffff, 0);
pci_update_config32(dev, 0x320, ~(3 << 20) & ~(7 << 6),
(1 << 20) | (3 << 6));