drivers/i2c/nct7802y: Add new hardware-monitoring IC

Just another hardware-monitoring chip. Only limited fan control and PECI
configuration is implemented.

Change-Id: I35ea79e12941804e398c6304a08170a776f4ca76
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29475
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

1 files changed, 49 insertions, 0 deletions

diff --git a/src/drivers/i2c/nct7802y/nct7802y.c b/src/drivers/i2c/nct7802y/nct7802y.c
new file mode 100644
index 0000000000..3681383610
--- /dev/null
+++ b/src/drivers/i2c/nct7802y/nct7802y.c
@@ -0,0 +1,49 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2017 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 "nct7802y.h"
+#include "chip.h"
+
+static void nct7802y_init(struct device *const dev)
+{
+	if (!dev->chip_info) {
+		printk(BIOS_WARNING,
+		       "NCT7802Y driver selected but not configured.");
+		return;
+	}
+
+	nct7802y_init_peci(dev);
+	nct7802y_init_fan(dev);
+}
+
+static struct device_operations nct7802y_ops = {
+	.read_resources		= DEVICE_NOOP,
+	.set_resources		= DEVICE_NOOP,
+	.enable_resources	= DEVICE_NOOP,
+	.init			= nct7802y_init,
+};
+
+static void nct7802y_enable(struct device *const dev)
+{
+	dev->ops = &nct7802y_ops;
+}
+
+struct chip_operations drivers_i2c_nct7802y_ops = {
+	CHIP_NAME("NCT7802Y")
+	.enable_dev = nct7802y_enable
+};