soc/amd/common/espi,mb/: Allow configuring open drain ALERT#
Some designs might wish to use an open drain eSPI ALERT#. This change
adds an enum that allows setting the eSPI alert mode.
BUG=b:187122344, b:186135022
TEST=Boot guybrush using all 3 alert modes
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ia35fc59a699cf9444b53aad5c9bb71aa27ce9251
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52954
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/mainboard/google/zork/variants/baseboard/devicetree_dalboz.cb b/src/mainboard/google/zork/variants/baseboard/devicetree_dalboz.cb
index f0fcf37..a8c270e 100644
--- a/src/mainboard/google/zork/variants/baseboard/devicetree_dalboz.cb
+++ b/src/mainboard/google/zork/variants/baseboard/devicetree_dalboz.cb
@@ -230,7 +230,7 @@
.io_mode = ESPI_IO_MODE_QUAD,
.op_freq_mhz = ESPI_OP_FREQ_33_MHZ,
.crc_check_enable = 1,
- .dedicated_alert_pin = 1,
+ .alert_pin = ESPI_ALERT_PIN_PUSH_PULL,
.periph_ch_en = 1,
.vw_ch_en = 1,
.oob_ch_en = 0,