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-rw-r--r--src/mainboard/lenovo/x220/devicetree.cb8
-rw-r--r--src/mainboard/lenovo/x230/devicetree.cb8
2 files changed, 10 insertions, 6 deletions
diff --git a/src/mainboard/lenovo/x220/devicetree.cb b/src/mainboard/lenovo/x220/devicetree.cb
index 1332cd8548..ae2a03ec09 100644
--- a/src/mainboard/lenovo/x220/devicetree.cb
+++ b/src/mainboard/lenovo/x220/devicetree.cb
@@ -165,9 +165,11 @@ chip northbridge/intel/sandybridge
register "eventd_enable" = "0xff"
register "evente_enable" = "0x0d"
- register "has_bdc_detection" = "1"
- register "bdc_gpio_num" = "54"
- register "bdc_gpio_lvl" = "0"
+ # BDC detection is broken on this board:
+ # BDC shorts pin14 and pin1
+ # BDC's connector pin14 is left floating
+ # BDC's connector pin1 is routed to SB GPIO 54
+ register "has_bdc_detection" = "0"
end
end # LPC bridge
device pci 1f.2 on
diff --git a/src/mainboard/lenovo/x230/devicetree.cb b/src/mainboard/lenovo/x230/devicetree.cb
index d7f56476df..41e13f6c75 100644
--- a/src/mainboard/lenovo/x230/devicetree.cb
+++ b/src/mainboard/lenovo/x230/devicetree.cb
@@ -167,9 +167,11 @@ chip northbridge/intel/sandybridge
register "eventd_enable" = "0xff"
register "evente_enable" = "0x0d"
- register "has_bdc_detection" = "1"
- register "bdc_gpio_num" = "54"
- register "bdc_gpio_lvl" = "0"
+ # BDC detection is broken on this board:
+ # BDC shorts pin14 and pin1
+ # BDC's connector pin14 is left floating
+ # BDC's connector pin1 is routed to SB GPIO 54
+ register "has_bdc_detection" = "0"
end
end # LPC bridge
device pci 1f.2 on