mb/supermicro/x11ssh-tf: configure "POST complete" gpio for IPMI driver
Configure the "POST complete" gpio in the devicetree for the BMC/IPMI
driver and set the pad's initial value to 0 since the signal is active-
high and shall be set by the IPMI/BMC driver.
Also add the pad to early gpio config, since it is expected to have an
external pull-up like X11SSM-F, which is wrong and would confuse the BMC.
Test: Boot the machine via the BMC web interface and check that sensors
get read correctly by the IPMI firmware when the payload starts.
Tested successfully.
Change-Id: If344b2271bfc8d50b8b64847109818f96f2abbcb
Tested-by: Patrick Rudolph <siro@das-labor.org>
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48711
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/mainboard/supermicro/x11-lga1151-series/variants/x11ssh-tf/overridetree.cb b/src/mainboard/supermicro/x11-lga1151-series/variants/x11ssh-tf/overridetree.cb
index 093786c..d7f5df8 100644
--- a/src/mainboard/supermicro/x11-lga1151-series/variants/x11ssh-tf/overridetree.cb
+++ b/src/mainboard/supermicro/x11-lga1151-series/variants/x11ssh-tf/overridetree.cb
@@ -76,6 +76,8 @@
end
device pci 1f.0 on # LPC Interface
chip drivers/ipmi
+ use pch_gpio as gpio_dev
+ register "post_complete_gpio" = "GPP_B20"
# On cold boot it takes a while for the BMC to start the IPMI service
register "wait_for_bmc" = "1"
register "bmc_boot_timeout" = "60"