superio/ite/it8720f: add new IT8720F Super I/O

This device is extremely similar to the IT8718F, so support is based on
existing support for the IT8718F. The CIR device is only detected by
Linux/Windows from the ACPI tables, so ACPI support is extended from the
IT8783E/F (for ACPI). This Super I/O is used on the Foxconn G41S-K.

Tested, working:
* Serial port 1
* Environment controller
  - Temperature monitoring
  - Voltage monitoring
  - Fan control (automatic and manual)
* PS/2 keyboard and mouse

Appears, OS driver loads, but otherwise untested:
* Serial port 2
* Consumer IR

Untested:
* Floppy controller
* Parallel port
* GPIO

Change-Id: Ib9a6fe91a772d78f4d122a6c516feff8658ada0a
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-on: https://review.coreboot.org/20026
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

1 files changed, 101 insertions, 0 deletions

diff --git a/src/superio/ite/it8720f/superio.c b/src/superio/ite/it8720f/superio.c
new file mode 100644
index 0000000000..74ffefa44c
--- /dev/null
+++ b/src/superio/ite/it8720f/superio.c
@@ -0,0 +1,101 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 secunet Security Networks AG
+ * Copyright (C) 2017 Samuel Holland <samuel@sholland.org>
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 <device/device.h>
+#include <device/pnp.h>
+#include <pc80/keyboard.h>
+#include <superio/ite/common/env_ctrl.h>
+#include <superio/conf_mode.h>
+
+#include "chip.h"
+#include "it8720f.h"
+
+static void it8720f_init(struct device *dev)
+{
+	const struct superio_ite_it8720f_config *conf;
+	const struct resource *res;
+
+	if (!dev->enabled)
+		return;
+
+	switch (dev->path.pnp.device) {
+	case IT8720F_EC:
+		conf = dev->chip_info;
+		res = find_resource(dev, PNP_IDX_IO0);
+		if (!conf || !res)
+			break;
+		ite_ec_init(res->base, &conf->ec);
+		break;
+	case IT8720F_KBCK:
+		pc_keyboard_init(NO_AUX_DEVICE);
+		break;
+	default:
+		break;
+	}
+}
+
+static struct device_operations ops = {
+	.read_resources   = pnp_read_resources,
+	.set_resources    = pnp_set_resources,
+	.enable_resources = pnp_enable_resources,
+	.enable           = pnp_enable,
+	.init             = it8720f_init,
+	.ops_pnp_mode     = &pnp_conf_mode_870155_aa,
+};
+
+static struct pnp_info pnp_dev_info[] = {
+	{ &ops, IT8720F_FDC,
+		PNP_IO0 | PNP_IRQ0 | PNP_DRQ0 | PNP_MSC0 | PNP_MSC1,
+		{0x0ff8, 0}, },
+	{ &ops, IT8720F_SP1,
+		PNP_IO0 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1,
+		{0x0ff8, 0}, },
+	{ &ops, IT8720F_SP2,
+		PNP_IO0 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1,
+		{0x0ff8, 0}, },
+	{ &ops, IT8720F_PP,
+		PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_DRQ0 | PNP_MSC0,
+		{0x0ff8, 0}, {0x0ffc, 0}, },
+	{ &ops, IT8720F_EC,
+		PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1 | PNP_MSC2 |
+		PNP_MSC3 | PNP_MSC4 | PNP_MSC5 | PNP_MSC6,
+		{0x0ff8, 0}, {0x0ffc, 0}, },
+	{ &ops, IT8720F_KBCK,
+		PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_MSC0,
+		{0x0fff, 0}, {0x0fff, 0}, },
+	{ &ops, IT8720F_KBCM,
+		PNP_IRQ0 | PNP_MSC0, },
+	{ &ops, IT8720F_GPIO,
+		PNP_IO0 | PNP_IO1 | PNP_IO2 | PNP_MSC0 | PNP_MSC1 | PNP_MSC2 |
+		PNP_MSC3 | PNP_MSC4 | PNP_MSC5 | PNP_MSC6 | PNP_MSC7 |
+		PNP_MSC8 | PNP_MSC9 | PNP_MSCA | PNP_MSCB | PNP_MSCD | PNP_MSCE,
+		{0x0ff8, 0}, {0x0ff8, 0}, {0x0ff8, 0}, },
+	{ &ops, IT8720F_CIR,
+		PNP_IO0 | PNP_IRQ0 | PNP_MSC0,
+		{0x0ff8, 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 superio_ite_it8720f_ops = {
+	CHIP_NAME("ITE IT8720F Super I/O")
+	.enable_dev = enable_dev,
+};