Vladimir Serbinenko (phcoder@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8313
-gerrit
commit f8673c886084b0ec00d7470f7abce387afa95e0e Author: Vladimir Serbinenko phcoder@gmail.com Date: Sat Jan 31 17:46:29 2015 +0100
lenovo/x230: Set usb2_3_os_switchable_map.
Fixes USB3 ports degraded to USB2 speeds.
Change-Id: Ie71c9fb6e52a3e72bb1e61351ad1cc0492d93cbc Signed-off-by: Vladimir Serbinenko phcoder@gmail.com --- src/mainboard/lenovo/x230/devicetree.cb | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/src/mainboard/lenovo/x230/devicetree.cb b/src/mainboard/lenovo/x230/devicetree.cb index 5130410..3a05b5a 100644 --- a/src/mainboard/lenovo/x230/devicetree.cb +++ b/src/mainboard/lenovo/x230/devicetree.cb @@ -67,6 +67,9 @@ chip northbridge/intel/sandybridge
register "pcie_hotplug_map" = "{ 0, 0, 1, 0, 0, 0, 0, 0 }"
+ register "xhci_switchable_ports" = "0xf" + register "superspeed_capable_ports" = "0xf" + # Enable zero-based linear PCIe root port functions register "pcie_port_coalesce" = "1" register "c2_latency" = "101" # c2 not supported