mb/lenovo/*/devicetree: Add BDC detection support
Add support for BDC detection, based on the schematics for each board.
Support for boards without schematics needs further testing.
Needs test on all boards.
Change-Id: If33ef88fb808f36b050393fa83eb1b541ce936b9
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/19810
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
diff --git a/src/mainboard/lenovo/t420/devicetree.cb b/src/mainboard/lenovo/t420/devicetree.cb
index 934c589..bed406a 100644
--- a/src/mainboard/lenovo/t420/devicetree.cb
+++ b/src/mainboard/lenovo/t420/devicetree.cb
@@ -158,6 +158,10 @@
register "eventc_enable" = "0xff"
register "eventd_enable" = "0xff"
register "evente_enable" = "0x0d"
+
+ register "has_bdc_detection" = "1"
+ register "bdc_gpio_num" = "54"
+ register "bdc_gpio_lvl" = "0"
end
chip drivers/lenovo/hybrid_graphics
device pnp ff.f on end # dummy