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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 Advanced Micro Devices, Inc.
*
* 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.
*/
#include <arch/io.h>
#include <device/pnp.h>
#include <stdint.h>
#include "sch4037.h"
static void pnp_enter_conf_state(pnp_devfn_t dev)
{
unsigned port = dev >> 8;
outb(0x55, port);
}
static void pnp_exit_conf_state(pnp_devfn_t dev)
{
unsigned port = dev >> 8;
outb(0xaa, port);
}
void sch4037_early_init(unsigned port)
{
pnp_devfn_t dev;
dev = PNP_DEV(port, SMSCSUPERIO_SP1);
pnp_enter_conf_state(dev);
/* Auto power management */
pnp_write_config(dev, 0x22, 0x38); /* BIT3+BIT4+BIT5 */
pnp_write_config(dev, 0x23, 0 );
/* Enable SMSC UART 0 */
dev = PNP_DEV(port, SMSCSUPERIO_SP1);
pnp_set_logical_device(dev);
pnp_set_enable(dev, 0);
pnp_set_iobase(dev, PNP_IDX_IO0, CONFIG_TTYS0_BASE);
pnp_set_irq(dev, PNP_IDX_IRQ0, 0x4);
/* Enabled High speed, disabled MIDI support. */
pnp_write_config(dev, 0xF0, 0x02);
pnp_set_enable(dev, 1);
/* Enable keyboard */
dev = PNP_DEV(port, SCH4037_KBC);
pnp_set_logical_device(dev);
pnp_set_enable(dev, 0);
pnp_set_irq(dev, 0x70, 1); /* IRQ 1 */
pnp_set_irq(dev, 0x72, 12); /* IRQ 12 */
pnp_set_enable(dev, 1);
pnp_exit_conf_state(dev);
}
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