From 134566395fd816673dde860d8e41c147c46bfb23 Mon Sep 17 00:00:00 2001
From: Jon Murphy <jpmurphy@google.com>
Date: Wed, 29 Mar 2023 15:55:32 -0600
Subject: [PATCH] mb/google/myst: Add smihandler

Add SMI handler code for Myst platform.

BUG=b:275858191
TEST=builds

Signed-off-by: Jon Murphy <jpmurphy@google.com>
Change-Id: I92e5e6aef7ab0b84a96d976e29ebf96b56f6f1a1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74100
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
---
 .../myst/variants/baseboard/Makefile.inc      |  2 ++
 .../myst/variants/baseboard/smihandler.c      | 19 +++++++++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 src/mainboard/google/myst/variants/baseboard/smihandler.c

diff --git a/src/mainboard/google/myst/variants/baseboard/Makefile.inc b/src/mainboard/google/myst/variants/baseboard/Makefile.inc
index 9fb63f5f43..ba096230cf 100644
--- a/src/mainboard/google/myst/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/myst/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
 bootblock-y += gpio.c
 
 ramstage-y += gpio.c
+
+smm-y += smihandler.c
diff --git a/src/mainboard/google/myst/variants/baseboard/smihandler.c b/src/mainboard/google/myst/variants/baseboard/smihandler.c
new file mode 100644
index 0000000000..7d439d5c31
--- /dev/null
+++ b/src/mainboard/google/myst/variants/baseboard/smihandler.c
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/variants.h>
+#include <cpu/x86/smm.h>
+#include <ec/google/chromeec/ec.h>
+#include <ec/google/chromeec/smm.h>
+#include <variant/ec.h>
+
+void mainboard_smi_sleep(u8 slp_typ)
+{
+	chromeec_smi_sleep(slp_typ, MAINBOARD_EC_S0IX_WAKE_EVENTS, MAINBOARD_EC_S5_WAKE_EVENTS);
+}
+
+int mainboard_smi_apmc(u8 apmc)
+{
+	chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS, MAINBOARD_EC_SMI_EVENTS);
+
+	return 0;
+}