mb/intel/icelake_rvp: Add EC acpi support code

This implementation adds below changes:

1. Add chrome ec asl support for iclrvp.
2. EC SCI, SMI, S3/S5 wake events.
3. Wake pin and EC SMI GPE confiiguration.

Change-Id: Ie95da92f7125e56fe9ef9d57a1098278c308918e
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/c/29797
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/intel/icelake_rvp/acpi/mainboard.asl

@@ -0,0 +1,24 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2018 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.
+ */
+
+#if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC)
+Scope (\_SB)
+{
+	Device (PWRB)
+	{
+		Name (_HID, EisaId ("PNP0C0C"))
+	}
+}
+#endif

src/mainboard/intel/icelake_rvp/dsdt.asl

@@ -14,6 +14,9 @@
  */
 
 #include <arch/acpi.h>
+#include "variant/ec.h"
+#include "variant/gpio.h"
+
 DefinitionBlock(
 	"dsdt.aml",
 	"DSDT",
@@ -45,7 +48,21 @@ DefinitionBlock(
 	#include <vendorcode/google/chromeos/acpi/chromeos.asl>
 #endif
 
+#if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC)
+	/* Chrome OS Embedded Controller */
+		Scope (\_SB.PCI0.LPCB)
+		{
+			/* ACPI code for EC SuperIO functions */
+			#include <ec/google/chromeec/acpi/superio.asl>
+			/* ACPI code for EC functions */
+			#include <ec/google/chromeec/acpi/ec.asl>
+		}
+#endif
+
 	// Chipset specific sleep states
 	#include <soc/intel/icelake/acpi/sleepstates.asl>
 
+	// Mainboard specific
+	#include "acpi/mainboard.asl"
+
 }

src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/ec.h

@@ -0,0 +1,82 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2018 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.
+ */
+
+#ifndef __BASEBOARD_EC_H__
+#define __BASEBOARD_EC_H__
+
+#include <ec/ec.h>
+#include <ec/google/chromeec/ec_commands.h>
+
+#include <variant/gpio.h>
+
+
+#define MAINBOARD_EC_SCI_EVENTS \
+	(EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_CLOSED)        |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_OPEN)          |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_CONNECTED)      |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED)   |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_LOW)       |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_CRITICAL)  |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY)           |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_STATUS)    |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_THRESHOLD) |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THROTTLE_START)    |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THROTTLE_STOP)     |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_PD_MCU)            |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_MODE_CHANGE)       |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_MKBP))
+
+#define MAINBOARD_EC_SMI_EVENTS \
+	(EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_CLOSED))
+
+/* EC can wake from S5 with lid or power button */
+#define MAINBOARD_EC_S5_WAKE_EVENTS \
+	(EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_OPEN) |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_POWER_BUTTON))
+
+/*
+ * EC can wake from S3 with lid or power button or key press or
+ * mode change event.
+ */
+#define MAINBOARD_EC_S3_WAKE_EVENTS \
+	(MAINBOARD_EC_S5_WAKE_EVENTS |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEY_PRESSED) |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_MODE_CHANGE))
+
+/* Log EC wake events plus EC shutdown events */
+#define MAINBOARD_EC_LOG_EVENTS \
+	(EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_SHUTDOWN) |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_SHUTDOWN) |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_PANIC))
+
+/*
+ * ACPI related definitions for ASL code.
+ */
+
+/* Enable EC backed ALS device in ACPI */
+#define EC_ENABLE_ALS_DEVICE
+
+/* Enable EC backed PD MCU device in ACPI */
+#define EC_ENABLE_PD_MCU_DEVICE
+
+/* Enable LID switch and provide wake pin for EC */
+#define EC_ENABLE_LID_SWITCH
+#define EC_ENABLE_WAKE_PIN	GPE_EC_WAKE
+
+#define SIO_EC_MEMMAP_ENABLE	/* EC Memory Map Resources */
+#define SIO_EC_HOST_ENABLE	/* EC Host Interface Resources */
+#define SIO_EC_ENABLE_PS2K      /* Enable PS/2 Keyboard */
+
+#endif /* __BASEBOARD_EC_H__ */

src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/gpio.h

@@ -16,6 +16,13 @@
 #ifndef __BASEBOARD_GPIO_H__
 #define __BASEBOARD_GPIO_H__
 
+#include <soc/gpe.h>
 #include <soc/gpio.h>
 
+/* eSPI virtual wire reporting */
+#define EC_SCI_GPI	GPE0_ESPI
+
+/* EC wake is LAN_WAKE# which is a special DeepSX wake pin */
+#define GPE_EC_WAKE	GPE0_LAN_WAK
+
 #endif /* __BASEBOARD_GPIO_H__ */

src/mainboard/intel/icelake_rvp/variants/icl_u/include/variant/ec.h

@@ -0,0 +1,21 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2018 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.
+ */
+
+#ifndef __MAINBOARD_EC_H__
+#define __MAINBOARD_EC_H__
+
+#include <baseboard/ec.h>
+
+#endif /* __MAINBOARD_EC_H__ */

src/mainboard/intel/icelake_rvp/variants/icl_y/include/variant/ec.h

@@ -0,0 +1,21 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2018 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.
+ */
+
+#ifndef __MAINBOARD_EC_H__
+#define __MAINBOARD_EC_H__
+
+#include <baseboard/ec.h>
+
+#endif /* __MAINBOARD_EC_H__ */