summaryrefslogtreecommitdiff
path: root/src/mainboard/lenovo
diff options
context:
space:
mode:
authorBill XIE <persmule@gmail.com>2019-02-27 13:22:33 +0800
committerPatrick Georgi <pgeorgi@google.com>2019-09-17 08:18:54 +0000
commit0ffdeef681f5f17b1aa66d9b99f5501089ea7b1a (patch)
treee75c98e32fff114692aab0630a8f97ecba34eb80 /src/mainboard/lenovo
parenteb5fa79723affe6d95dd4b2d56d6205bf396b6ef (diff)
downloadcoreboot-0ffdeef681f5f17b1aa66d9b99f5501089ea7b1a.tar.xz
mb/lenovo/t430s: Open PCIe port #5 for Thunderbolt controller
Some T430s variants have a Thunderbolt controller wired to PCIe port The controller hotplugs itself to the chipset when a downstream device is hotplugged into it, so the hotplug capability should be enabled on PCIe port #5. TODO: find the correct gpio pin to detect the Thunderbolt controller at runtime. There are 3 variants of mainboard for Thinkpad T430s: Basic type (Wistron LSN-4 11263-1), Boards with an additional discreet GPU, Boards with an additional TB controller (Wistron LSN-4 11271-1), each of which has a different schematic. The gpio27 on the last type is set as set as GPIO-INPUT, compared with GPIO-OUTPUT-HIGH on the basic type boards. Change-Id: I61f41db100f398069e50e2da8a378b3a8d1c84bf Signed-off-by: Bill XIE <persmule@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31631 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'src/mainboard/lenovo')
-rw-r--r--src/mainboard/lenovo/t430s/variants/t430s/overridetree.cb5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/lenovo/t430s/variants/t430s/overridetree.cb b/src/mainboard/lenovo/t430s/variants/t430s/overridetree.cb
index ff307027ec..ee949792a7 100644
--- a/src/mainboard/lenovo/t430s/variants/t430s/overridetree.cb
+++ b/src/mainboard/lenovo/t430s/variants/t430s/overridetree.cb
@@ -1,6 +1,11 @@
chip northbridge/intel/sandybridge
device domain 0 on
chip southbridge/intel/bd82x6x # Intel Series 7 Panther Point PCH
+ # Enable hotplug on Port 5 for Thunderbolt controller
+ register "pcie_hotplug_map" = "{ 0, 0, 1, 0, 1, 0, 0, 0 }"
+ device pci 1c.4 on
+ subsystemid 0x17aa 0x21fb
+ end # PCIe Port #5 Thunderbolt controller
device pci 1f.0 on
chip ec/lenovo/h8
register "has_bdc_detection" = "1"