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/*
* 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; 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 <arch/io.h>
#include <device/pnp_def.h>
#include "it8772f.h"
/* NOTICE: This file is deprecated, use ite/common instead */
/* RAMstage equiv */
/* u8 pnp_read_config(pnp_devfn_t dev, u8 reg) */
u8 it8772f_sio_read(pnp_devfn_t dev, u8 reg)
{
u16 port = dev >> 8;
outb(reg, port);
return inb(port + 1);
}
/* RAMstage equiv */
/* void pnp_write_config(pnp_devfn_t dev, u8 reg, u8 value) */
void it8772f_sio_write(pnp_devfn_t dev, u8 reg, u8 value)
{
u16 port = dev >> 8;
outb(reg, port);
outb(value, port + 1);
}
void it8772f_enter_conf(pnp_devfn_t dev)
{
u16 port = dev >> 8;
outb(0x87, port);
outb(0x01, port);
outb(0x55, port);
outb((port == 0x4e) ? 0xaa : 0x55, port);
}
void it8772f_exit_conf(pnp_devfn_t dev)
{
it8772f_sio_write(dev, IT8772F_CONFIG_REG_CC, 0x02);
}
/* Set AC resume to be up to the Southbridge */
void it8772f_ac_resume_southbridge(pnp_devfn_t dev)
{
it8772f_enter_conf(dev);
it8772f_sio_write(dev, IT8772F_CONFIG_REG_LDN, IT8772F_EC);
it8772f_sio_write(dev, 0xf4, 0x60);
it8772f_exit_conf(dev);
}
/* Configure a set of GPIOs */
void it8772f_gpio_setup(pnp_devfn_t dev, int set, u8 select, u8 polarity,
u8 pullup, u8 output, u8 enable)
{
set--; /* Set 1 is offset 0 */
it8772f_enter_conf(dev);
it8772f_sio_write(dev, IT8772F_CONFIG_REG_LDN, IT8772F_GPIO);
if (set < 5) {
it8772f_sio_write(dev, GPIO_REG_SELECT(set), select);
it8772f_sio_write(dev, GPIO_REG_ENABLE(set), enable);
it8772f_sio_write(dev, GPIO_REG_POLARITY(set), polarity);
}
it8772f_sio_write(dev, GPIO_REG_OUTPUT(set), output);
it8772f_sio_write(dev, GPIO_REG_PULLUP(set), pullup);
it8772f_exit_conf(dev);
}
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