ec/roda/it8518: Add another embedded controller

The embedded-controller interface of Roda's Ivy Bridge notebooks is
supposedly programmed by AMI.

Change-Id: I153d831fcea8a3132c7bd1927ff3b445d9a8e92c
Signed-off-by: Dennis Wassenberg <dennis.wassenberg@secunet.com>
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/17288
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/src/ec/roda/it8518/ec.c b/src/ec/roda/it8518/ec.c
new file mode 100644
index 0000000000..707d9e9371
--- /dev/null
+++ b/src/ec/roda/it8518/ec.c
@@ -0,0 +1,58 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 secunet Security Networks AG
+ *
+ * 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 <console/console.h>
+#include <device/device.h>
+#include <device/pnp.h>
+#include <pc80/keyboard.h>
+#include <ec/acpi/ec.h>
+#include <stdlib.h>
+
+#include "chip.h"
+
+static void it8518_init(struct device *dev)
+{
+	const struct ec_roda_it8518_config *const conf = dev->chip_info;
+
+	if (!dev->enabled)
+		return;
+
+	if (conf && conf->cpuhot_limit)
+		ec_write(0xb2, conf->cpuhot_limit);
+
+	printk(BIOS_DEBUG, "Roda IT8518: Initializing keyboard.\n");
+	pc_keyboard_init(NO_AUX_DEVICE);
+}
+
+static struct device_operations ops = {
+	.init             = it8518_init,
+	.read_resources   = DEVICE_NOOP,
+	.enable_resources = DEVICE_NOOP,
+};
+
+static struct pnp_info pnp_dev_info[] = {
+	{ &ops, 0, 0, { 0, 0 }, }
+};
+
+static void enable_dev(struct device *dev)
+{
+	pnp_enable_devices(dev, &pnp_ops, ARRAY_SIZE(pnp_dev_info),
+			   pnp_dev_info);
+}
+
+struct chip_operations ec_roda_it8518_ops = {
+	CHIP_NAME("Roda IT8518 EC")
+	.enable_dev = enable_dev
+};