linux-vybrid_public/arch/sh/boards/se/770x/setup.c

/* $Id: setup.c,v 1.1.2.4 2002/03/02 21:57:07 lethal Exp $
 *
 * linux/arch/sh/boards/se/770x/setup.c
 *
 * Copyright (C) 2000  Kazumoto Kojima
 *
 * Hitachi SolutionEngine Support.
 *
 */

#include <linux/config.h>
#include <linux/init.h>
#include <linux/irq.h>

#include <linux/hdreg.h>
#include <linux/ide.h>
#include <asm/io.h>
#include <asm/se/se.h>
#include <asm/se/smc37c93x.h>

/*
 * Configure the Super I/O chip
 */
static void __init smsc_config(int index, int data)
{
	outb_p(index, INDEX_PORT);
	outb_p(data, DATA_PORT);
}

static void __init init_smsc(void)
{
	outb_p(CONFIG_ENTER, CONFIG_PORT);
	outb_p(CONFIG_ENTER, CONFIG_PORT);

	/* FDC */
	smsc_config(CURRENT_LDN_INDEX, LDN_FDC);
	smsc_config(ACTIVATE_INDEX, 0x01);
	smsc_config(IRQ_SELECT_INDEX, 6); /* IRQ6 */

	/* IDE1 */
	smsc_config(CURRENT_LDN_INDEX, LDN_IDE1);
	smsc_config(ACTIVATE_INDEX, 0x01);
	smsc_config(IRQ_SELECT_INDEX, 14); /* IRQ14 */

	/* AUXIO (GPIO): to use IDE1 */
	smsc_config(CURRENT_LDN_INDEX, LDN_AUXIO);
	smsc_config(GPIO46_INDEX, 0x00); /* nIOROP */
	smsc_config(GPIO47_INDEX, 0x00); /* nIOWOP */

	/* COM1 */
	smsc_config(CURRENT_LDN_INDEX, LDN_COM1);
	smsc_config(ACTIVATE_INDEX, 0x01);
	smsc_config(IO_BASE_HI_INDEX, 0x03);
	smsc_config(IO_BASE_LO_INDEX, 0xf8);
	smsc_config(IRQ_SELECT_INDEX, 4); /* IRQ4 */

	/* COM2 */
	smsc_config(CURRENT_LDN_INDEX, LDN_COM2);
	smsc_config(ACTIVATE_INDEX, 0x01);
	smsc_config(IO_BASE_HI_INDEX, 0x02);
	smsc_config(IO_BASE_LO_INDEX, 0xf8);
	smsc_config(IRQ_SELECT_INDEX, 3); /* IRQ3 */

	/* RTC */
	smsc_config(CURRENT_LDN_INDEX, LDN_RTC);
	smsc_config(ACTIVATE_INDEX, 0x01);
	smsc_config(IRQ_SELECT_INDEX, 8); /* IRQ8 */

	/* XXX: PARPORT, KBD, and MOUSE will come here... */
	outb_p(CONFIG_EXIT, CONFIG_PORT);
}

const char *get_system_type(void)
{
	return "SolutionEngine";
}

/*
 * Initialize the board
 */
void __init platform_setup(void)
{
	init_smsc();
	/* XXX: RTC setting comes here */
}