src/superio/NSC/pc97307/superio.c

/* Copyright 2000  AG Electronics Ltd. */
/* This code is distributed without warranty under the GPL v2 (see COPYING) */

#include <ppc.h>
#include <ppcreg.h>
#include <types.h>
#include <arch/io.h>

#ifndef PNP_INDEX_REG
#define PNP_INDEX_REG	0x15C
#endif
#ifndef PNP_DATA_REG
#define PNP_DATA_REG	0x15D
#endif
#ifndef SIO_COM1
#define SIO_COM1_BASE	0x3F8
#endif
#ifndef SIO_COM2
#define SIO_COM2_BASE	0x2F8
#endif

void pnp_output(char address, char data)
{
    outb(address, PNP_INDEX_REG);
    outb(data, PNP_DATA_REG);
}

void sio_enable(void)
{
    /* Enable Super IO Chip */
    pnp_output(0x07, 6); /* LD 6 = UART1 */
    pnp_output(0x30, 0); /* Dectivate */
    pnp_output(0x60, SIO_COM1_BASE >> 8); /* IO Base */
    pnp_output(0x61, SIO_COM1_BASE & 0xFF); /* IO Base */
    pnp_output(0x30, 1); /* Activate */
}

#if 0
struct superio_control superio_NSC_pc97307_control = {
	pre_pci_init:   (void *)0,
	init:           (void *)0,
	finishup:       (void *)0,
	defaultport:    SIO_COM1_BASE,
	name:           "NSC 87307"
};
#endif