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-rw-r--r--src/mainboard/lenovo/x230/devicetree.cb5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/mainboard/lenovo/x230/devicetree.cb b/src/mainboard/lenovo/x230/devicetree.cb
index 3a8e5fe852..085b4e137b 100644
--- a/src/mainboard/lenovo/x230/devicetree.cb
+++ b/src/mainboard/lenovo/x230/devicetree.cb
@@ -58,8 +58,9 @@ chip northbridge/intel/sandybridge
register "gen2_dec" = "0x0c15e1"
register "gen4_dec" = "0x0c06a1"
- register "xhci_switchable_ports" = "0xf"
- register "superspeed_capable_ports" = "0xf"
+ # Do not enable xHCI Port 4 since WWAN USB is EHCI-only
+ register "xhci_switchable_ports" = "0x7"
+ register "superspeed_capable_ports" = "0x7"
register "xhci_overcurrent_mapping" = "0x4000201"
# Enable zero-based linear PCIe root port functions