blob: 070871d1063158e786385ca59db78369c8de5f18 [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* RAM driver for the SMSC MEC1308 Super I/O chip */
#include <arch/io.h>
#include <device/device.h>
#include <device/pnp.h>
#include <console/console.h>
#include <device/smbus.h>
#include <string.h>
#include <bitops.h>
#include <pc80/keyboard.h>
#include <stdlib.h>
#include "chip.h"
#include "mec1308.h"
#if CONFIG_HAVE_ACPI_RESUME
#include <arch/acpi.h>
#endif
static void pnp_enter_conf_state(device_t dev)
{
outb(0x55, dev->path.pnp.port);
}
static void pnp_exit_conf_state(device_t dev)
{
outb(0xaa, dev->path.pnp.port);
}
static void mec1308_pnp_set_resources(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_set_resources(dev);
pnp_exit_conf_state(dev);
}
static void mec1308_pnp_enable_resources(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_enable_resources(dev);
pnp_exit_conf_state(dev);
}
static void mec1308_pnp_enable(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_set_logical_device(dev);
if(dev->enabled) {
pnp_set_enable(dev, 1);
}
else {
pnp_set_enable(dev, 0);
}
pnp_exit_conf_state(dev);
}
static void mec1308_init(device_t dev)
{
struct superio_smsc_mec1308_config *conf = dev->chip_info;
if (!dev->enabled)
return;
switch(dev->path.pnp.device) {
case MEC1308_KBC:
#if CONFIG_HAVE_ACPI_RESUME
if (acpi_slp_type == 3)
return;
#endif
pc_keyboard_init(&conf->keyboard);
break;
}
}
static struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = mec1308_pnp_set_resources,
.enable_resources = mec1308_pnp_enable_resources,
.enable = mec1308_pnp_enable,
.init = mec1308_init,
};
static struct pnp_info pnp_dev_info[] = {
{ &ops, MEC1308_PM1, PNP_IO0, { 0x7ff, 0 } },
{ &ops, MEC1308_EC1, PNP_IO0, { 0x7ff, 0 } },
{ &ops, MEC1308_EC2, PNP_IO0, { 0x7ff, 0 } },
{ &ops, MEC1308_UART, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
{ &ops, MEC1308_KBC, PNP_IRQ0, { 0, 0 } /* IO Fixed at 0x60/0x64 */ },
{ &ops, MEC1308_EC0, PNP_IO0, { 0x7ff, 0 } },
{ &ops, MEC1308_MBX, PNP_IO0, { 0x7ff, 0 } },
};
static void enable_dev(device_t dev)
{
pnp_enable_devices(dev, &pnp_ops,
ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
struct chip_operations superio_smsc_mec1308_ops = {
CHIP_NAME("SMSC MEC1308 EC SuperIO Interface")
.enable_dev = enable_dev
};