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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 Dynon Avionics
*
* 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.
*
* 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 $
*/
#include <arch/io.h>
#include <device/device.h>
#include <device/pnp.h>
#include <console/console.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include <uart8250.h>
#include <pc80/keyboard.h>
#include "chip.h"
#include "w83627uhg.h"
static void w83627uhg_enter_ext_func_mode(device_t dev)
{
outb(0x87, dev->path.pnp.port);
outb(0x87, dev->path.pnp.port);
}
static void w83627uhg_exit_ext_func_mode(device_t dev)
{
outb(0xaa, dev->path.pnp.port);
}
/*
* Set the UART clock source.
*
* Possible UART clock source speeds are:
*
* 0 = 1.8462 MHz (default)
* 1 = 2 MHz
* 2 = 24 MHz
* 3 = 14.769 MHz
*
* The faster clocks allow for BAUD rates up to 2mbits.
*
* Warning: The kernel will need to be adjusted since it assumes
* a 1.8462 MHz clock.
*/
static void set_uart_clock_source(device_t dev, u8 uart_clock)
{
u8 value;
w83627uhg_enter_ext_func_mode(dev);
pnp_set_logical_device(dev);
value = pnp_read_config(dev, 0xf0);
value &= ~0x03;
value |= (uart_clock & 0x03);
pnp_write_config(dev, 0xf0, value);
w83627uhg_exit_ext_func_mode(dev);
}
static void w83627uhg_init(device_t dev)
{
struct superio_winbond_w83627uhg_config *conf = dev->chip_info;
if (!dev->enabled)
return;
switch(dev->path.pnp.device) {
case W83627UHG_SP1:
/* set_uart_clock_source(dev, 0); */
break;
case W83627UHG_SP2:
/* set_uart_clock_source(dev, 0); */
break;
case W83627UHG_SP3:
/* set_uart_clock_source(dev, 0); */
break;
case W83627UHG_SP4:
/* set_uart_clock_source(dev, 0); */
break;
case W83627UHG_SP5:
/* set_uart_clock_source(dev, 0); */
break;
case W83627UHG_SP6:
/* set_uart_clock_source(dev, 0); */
break;
case W83627UHG_KBC:
pc_keyboard_init(&conf->keyboard);
break;
}
}
static void w83627uhg_set_resources(device_t dev)
{
w83627uhg_enter_ext_func_mode(dev);
pnp_set_resources(dev);
w83627uhg_exit_ext_func_mode(dev);
}
static void w83627uhg_enable_resources(device_t dev)
{
w83627uhg_enter_ext_func_mode(dev);
pnp_enable_resources(dev);
w83627uhg_exit_ext_func_mode(dev);
}
static void w83627uhg_enable(device_t dev)
{
w83627uhg_enter_ext_func_mode(dev);
pnp_enable(dev);
w83627uhg_exit_ext_func_mode(dev);
}
static struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = w83627uhg_set_resources,
.enable_resources = w83627uhg_enable_resources,
.enable = w83627uhg_enable,
.init = w83627uhg_init,
};
static struct pnp_info pnp_dev_info[] = {
{ &ops, W83627UHG_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
{ &ops, W83627UHG_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
{ &ops, W83627UHG_SP1, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, W83627UHG_SP2, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, W83627UHG_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, {0x07ff, 0}, {0x07ff, 4}, },
{ &ops, W83627UHG_SP3, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, W83627UHG_GPIO3_4, },
{ &ops, W83627UHG_WDTO_PLED_GPIO5_6, },
{ &ops, W83627UHG_GPIO1_2, },
{ &ops, W83627UHG_ACPI, PNP_IRQ0, },
{ &ops, W83627UHG_HWM, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
{ &ops, W83627UHG_PECI_SST, },
{ &ops, W83627UHG_SP4, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, W83627UHG_SP5, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, W83627UHG_SP6, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
};
static void enable_dev(device_t dev)
{
pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
struct chip_operations superio_winbond_w83627uhg_ops = {
CHIP_NAME("Winbond W83627UHG Super I/O")
.enable_dev = enable_dev,
};
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