1 files changed, 54 insertions, 0 deletions
diff --git a/src/mainboard/google/butterfly/smihandler.c b/src/mainboard/google/butterfly/smihandler.c
new file mode 100644
index 0000000000..1f45055b0e
--- /dev/null
+++ b/src/mainboard/google/butterfly/smihandler.c
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <acpi/acpi_gnvs.h>
+#include <console/console.h>
+#include <cpu/x86/smm.h>
+#include <soc/nvs.h>
+#include <southbridge/intel/bd82x6x/pch.h>
+#include <southbridge/intel/bd82x6x/me.h>
+#include <northbridge/intel/sandybridge/sandybridge.h>
+#include <cpu/intel/model_206ax/model_206ax.h>
+
+/* Include EC functions */
+#include <ec/quanta/ene_kb3940q/ec.h>
+#include "ec.h"
+
+void mainboard_smi_gpi(u32 gpi_sts)
+{
+	printk(BIOS_DEBUG, "warn: unknown mainboard_smi_gpi: %x\n", gpi_sts);
+}
+
+void mainboard_smi_sleep(u8 slp_typ)
+{
+	printk(BIOS_DEBUG, "mainboard_smi_sleep: %x\n", slp_typ);
+
+	/* Tell the EC to Enable USB power for S3 if requested */
+	if (gnvs->s3u0 != 0 || gnvs->s3u1 != 0)
+		ec_mem_write(EC_EC_PSW, ec_mem_read(EC_EC_PSW) | EC_PSW_USB);
+
+	/* Disable wake on USB, LAN & RTC */
+	/* Enable Wake from Keyboard */
+	if ((slp_typ == 4) || (slp_typ == 5)) {
+		printk(BIOS_DEBUG, "Disabling wake on RTC\n");
+		ec_mem_write(EC_EC_PSW, EC_PSW_IKB);
+	}
+}
+
+int mainboard_smi_apmc(u8 apmc)
+{
+	printk(BIOS_DEBUG, "mainboard_smi_apmc: %x\n", apmc);
+	switch (apmc) {
+	case APM_CNT_ACPI_ENABLE:
+		printk(BIOS_DEBUG, "APMC: ACPI_EN\n");
+		/* Clear all pending events and enable SCI */
+		ec_write_cmd(EC_CMD_ENABLE_ACPI_MODE);
+		break;
+
+	case APM_CNT_ACPI_DISABLE:
+		printk(BIOS_DEBUG, "APMC: ACPI_DIS\n");
+		/* Clear all pending events and tell the EC that ACPI is disabled */
+		ec_write_cmd(EC_CMD_DISABLE_ACPI_MODE);
+		break;
+	}
+	return 0;
+}