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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 coresystems GmbH
*
* 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 LPC47M15X 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 <uart8250.h>
#include <pc80/keyboard.h>
#include <stdlib.h>
#include "chip.h"
#include "lpc47m15x.h"
/* Forward declarations */
static void enable_dev(device_t dev);
static void lpc47m15x_pnp_set_resources(device_t dev);
static void lpc47m15x_pnp_enable_resources(device_t dev);
static void lpc47m15x_pnp_enable(device_t dev);
static void lpc47m15x_init(device_t dev);
static void pnp_enter_conf_state(device_t dev);
static void pnp_exit_conf_state(device_t dev);
struct chip_operations superio_smsc_lpc47m15x_ops = {
CHIP_NAME("SMSC LPC47M15x/192/997 Super I/O")
.enable_dev = enable_dev
};
static struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = lpc47m15x_pnp_set_resources,
.enable_resources = lpc47m15x_pnp_enable_resources,
.enable = lpc47m15x_pnp_enable,
.init = lpc47m15x_init,
};
static struct pnp_info pnp_dev_info[] = {
{ &ops, LPC47M15X_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
{ &ops, LPC47M15X_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
{ &ops, LPC47M15X_SP1, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, LPC47M15X_SP2, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, LPC47M15X_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, {0x07ff, 0}, {0x07ff, 4}, },
};
static void enable_dev(device_t dev)
{
pnp_enable_devices(dev, &pnp_ops,
ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
static void lpc47m15x_pnp_set_resources(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_set_resources(dev);
pnp_exit_conf_state(dev);
}
static void lpc47m15x_pnp_enable_resources(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_enable_resources(dev);
pnp_exit_conf_state(dev);
}
static void lpc47m15x_pnp_enable(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_set_logical_device(dev);
pnp_set_enable(dev, (dev->enabled) ? 1 : 0);
pnp_exit_conf_state(dev);
}
static void lpc47m15x_init(device_t dev)
{
struct superio_smsc_lpc47m15x_config *conf = dev->chip_info;
struct resource *res0;
if (!dev->enabled)
return;
switch(dev->path.pnp.device) {
case LPC47M15X_SP1:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com1);
break;
case LPC47M15X_SP2:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com2);
break;
case LPC47M15X_KBC:
pc_keyboard_init(&conf->keyboard);
break;
}
}
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);
}
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