mb/google/mancomb: Enable eSPI VW SCI events

Mancomb does not have a dedicated SCI pin so it uses VW.

BUG=b:182211161
TEST=builds

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Id315ab448209d9c93494f7689361e45f8a6ed001
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51627
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mathew King <mathewk@chromium.org>
diff --git a/src/mainboard/google/mancomb/ec.c b/src/mainboard/google/mancomb/ec.c
index 1794acf..f89bc9e 100644
--- a/src/mainboard/google/mancomb/ec.c
+++ b/src/mainboard/google/mancomb/ec.c
@@ -4,8 +4,18 @@
 #include <amdblocks/gpio_banks.h>
 #include <amdblocks/smi.h>
 #include <ec/google/chromeec/ec.h>
+#include <soc/smi.h>
 #include <variant/ec.h>
 
+static const struct sci_source espi_sci_sources[] = {
+	{
+		.scimap = SMITYPE_ESPI_SYS,
+		.gpe = GEVENT_24,
+		.direction = SMI_SCI_LVL,
+		.level = SMI_SCI_LVL_HIGH
+	}
+};
+
 void mainboard_ec_init(void)
 {
 	const struct google_chromeec_event_info info = {
@@ -17,4 +27,7 @@
 	};
 
 	google_chromeec_events_init(&info, acpi_is_wakeup_s3());
+
+	/* Configure eSPI VW SCI events */
+	gpe_configure_sci(espi_sci_sources, ARRAY_SIZE(espi_sci_sources));
 }