mb/google/poppy: Allow variants to provide event info at runtime

This change adds a variant callback to read google_chromeec_event_info
from variant at runtime to allow override of any events based on
factors like board id.

This callback is used in ramstage and smm to get
google_chromeec_event_info structure for performing various actions
like setting masks and logging wake events from EC.

BUG=b:112366846,b:112112483,b:112111610

Change-Id: If89e904c92372530a0f555952f87702f068e0b03
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/28983
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Enrico Granata <egranata@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/mainboard/google/poppy/Makefile.inc

@@ -26,6 +26,7 @@ ramstage-y += mainboard.c
 ramstage-y += ramstage.c
 
 smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c
+smm-$(CONFIG_EC_GOOGLE_CHROMEEC) += ec.c
 
 subdirs-y += variants/baseboard
 CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/variants/baseboard/include

src/mainboard/google/poppy/ec.c

@@ -14,13 +14,14 @@
  */
 
 #include <arch/acpi.h>
+#include <baseboard/variants.h>
 #include <ec/google/chromeec/ec.h>
 
 #include <variant/ec.h>
 
-void mainboard_ec_init(void)
+__weak const struct google_chromeec_event_info *variant_get_event_info(void)
 {
-	const struct google_chromeec_event_info info = {
+	static const struct google_chromeec_event_info info = {
 		.log_events = MAINBOARD_EC_LOG_EVENTS,
 		.sci_events = MAINBOARD_EC_SCI_EVENTS,
 		.s3_wake_events = MAINBOARD_EC_S3_WAKE_EVENTS,
@@ -28,6 +29,11 @@ void mainboard_ec_init(void)
 		.s0ix_wake_events = MAINBOARD_EC_S0IX_WAKE_EVENTS,
 	};
 
-	google_chromeec_events_init(&info, acpi_is_wakeup_s3());
-
+	return &info;
+}
+
+void mainboard_ec_init(void)
+{
+	google_chromeec_events_init(variant_get_event_info(),
+				    acpi_is_wakeup_s3());
 }

src/mainboard/google/poppy/smihandler.c

@@ -34,20 +34,30 @@ void __weak variant_smi_sleep(u8 slp_typ) {}
 
 void mainboard_smi_sleep(u8 slp_typ)
 {
+	const struct google_chromeec_event_info *info;
+
+	info = variant_get_event_info();
+
 	variant_smi_sleep(slp_typ);
-	chromeec_smi_sleep(slp_typ, MAINBOARD_EC_S3_WAKE_EVENTS,
-			MAINBOARD_EC_S5_WAKE_EVENTS);
+	chromeec_smi_sleep(slp_typ, info->s3_wake_events, info->s5_wake_events);
 }
 
 int mainboard_smi_apmc(u8 apmc)
 {
-	chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS,
-			MAINBOARD_EC_SMI_EVENTS);
+	const struct google_chromeec_event_info *info;
+
+	info = variant_get_event_info();
+
+	chromeec_smi_apmc(apmc, info->sci_events, info->smi_events);
+
 	return 0;
 }
 
 void elog_gsmi_cb_mainboard_log_wake_source(void)
 {
-	google_chromeec_log_events(MAINBOARD_EC_LOG_EVENTS |
-					MAINBOARD_EC_S0IX_WAKE_EVENTS);
+	const struct google_chromeec_event_info *info;
+
+	info = variant_get_event_info();
+
+	google_chromeec_log_events(info->log_events | info->s0ix_wake_events);
 }

src/mainboard/google/poppy/variants/baseboard/include/baseboard/variants.h

@@ -73,4 +73,11 @@ void variant_nhlt_init(struct nhlt *nhlt);
 void variant_nhlt_oem_overrides(const char **oem_id, const char **oem_table_id,
 				uint32_t *oem_revision);
 
+struct google_chromeec_event_info;
+/*
+ * Read google_chromeec_event_info structure from variant to set different masks
+ * on the EC e.g. SCI, S3, S5, S0ix, SMI.
+ */
+const struct google_chromeec_event_info *variant_get_event_info(void);
+
 #endif /* __BASEBOARD_VARIANTS_H__ */