soc/cannonlake: Enable SMM code for Cannon Lake

The minimum needed defines are included here and pm.h
will be updated when the PMC code for cannonlake is uploaded.

Change-Id: Idaf2be1258b3ec71fa449b88516bcb06c730d776
Signed-off-by: Brandon Breitenstein <brandon.breitenstein@intel.com>
Reviewed-on: https://review.coreboot.org/20849
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/cannonlake/Kconfig

@@ -32,6 +32,8 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_RTC
 	select SOC_INTEL_COMMON_BLOCK_SA
 	select SOC_INTEL_COMMON_BLOCK_SMBUS
+	select SOC_INTEL_COMMON_BLOCK_SMM
+	select SOC_INTEL_COMMON_BLOCK_SMM_IO_TRAP
 	select SOC_INTEL_COMMON_BLOCK_TIMER
 	select SOC_INTEL_COMMON_BLOCK_UART
 	select SOC_INTEL_COMMON_RESET

src/soc/intel/cannonlake/include/soc/pm.h

@@ -20,6 +20,23 @@
 #include <arch/acpi.h>
 #include <soc/pmc.h>
 
+#define PM1_EN			0x02
+#define  PWRBTN_EN		(1 << 8)
+#define  GBL_EN			(1 << 5)
+#define SMI_EN			0x30
+#define  ESPI_SMI_EN		(1 << 28)
+#define  APMC_EN		(1 <<  5)
+#define  SLP_SMI_EN		(1 <<  4)
+#define  EOS			(1 <<  1)
+#define  GBL_SMI_EN		(1 <<  0)
+
+
+#define GPE0_EN(x)		(0x70 + ((x) * 4))
+#define  PME_B0_EN		(1 << 13)
+
+#define ENABLE_SMI_PARAMS \
+	(APMC_EN | SLP_SMI_EN | GBL_SMI_EN | ESPI_SMI_EN | EOS)
+
 struct chipset_power_state {
 	uint16_t pm1_sts;
 	uint16_t pm1_en;

src/soc/intel/cannonlake/smihandler.c

@@ -0,0 +1,31 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2017 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <intelblocks/smihandler.h>
+
+static smi_handler_t southbridge_smi[SMI_STS_BITS] = {
+	[SMI_ON_SLP_EN_STS_BIT] = smihandler_southbridge_sleep,
+	[APM_STS_BIT] = smihandler_southbridge_apmc,
+	[PM1_STS_BIT] = smihandler_southbridge_pm1,
+	[GPE0_STS_BIT] = smihandler_southbridge_gpe0,
+	[GPIO_STS_BIT] = smihandler_southbridge_gpi,
+	[ESPI_SMI_STS_BIT] = smihandler_southbridge_espi,
+	[MCSMI_STS_BIT] = smihandler_southbridge_mc,
+	[TCO_STS_BIT] = smihandler_southbridge_tco,
+	[PERIODIC_STS_BIT] = smihandler_southbridge_periodic,
+	[MONITOR_STS_BIT] = smihandler_southbridge_monitor,
+};