mb/google/guybrush: Log mainboard events to elog

BUG=b:180653357
TEST=builds

Signed-off-by: Mathew King <mathewk@chromium.org>
Change-Id: Ifd43d9cc1832d8ed8d90c68ba88b5667e3c04f89
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51269
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/mainboard/google/guybrush/Kconfig

@@ -11,6 +11,8 @@ config BOARD_SPECIFIC_OPTIONS
 	select BOARD_ROMSIZE_KB_16384
 	select EC_GOOGLE_CHROMEEC
 	select EC_GOOGLE_CHROMEEC_ESPI
+	select ELOG
+	select ELOG_GSMI
 	select FW_CONFIG
 	select MAINBOARD_HAS_CHROMEOS
 	select SOC_AMD_CEZANNE

src/mainboard/google/guybrush/smihandler.c

@@ -2,7 +2,9 @@
 
 #include <baseboard/variants.h>
 #include <cpu/x86/smm.h>
+#include <ec/google/chromeec/ec.h>
 #include <ec/google/chromeec/smm.h>
+#include <elog.h>
 #include <variant/ec.h>
 
 void mainboard_smi_gpi(u32 gpi_sts)
@@ -27,3 +29,8 @@ int mainboard_smi_apmc(u8 apmc)
 
 	return 0;
 }
+
+void elog_gsmi_cb_mainboard_log_wake_source(void)
+{
+	google_chromeec_log_events(MAINBOARD_EC_LOG_EVENTS | MAINBOARD_EC_S0IX_WAKE_EVENTS);
+}