/* ns8730xSuperIo.c - National Semiconductor 8730x Super IO initialization *//* Copyright 1984-1998 Wind River Systems, Inc. *//* Copyright 1996,1997,1998 Motorola, Inc., All Rights Reserved *//*modification history--------------------01b,17jul00,dmw  updated memory defines to new naming conventions.01a,12dec97,rhk  created by Motorola.*//*DESCRIPTIONThis module provides the necessary initialization of the National Semiconductor 87307 and 87308 Super I/O chips.  This chip provides supportfor a Floppy Disk Controller, 2 serial ports, a parallel port, a real-time clock, keyboard controller and Auxillary I/O..CS    Upon completion, SIO resource registers are mapped as follows:    Resource    Enabled     Address    FDC          Yes     PRI     3F0-3F7    UART1        Yes     COM1    3F8-3FF    UART2        Yes     COM2    2F8-2FF    PARALLEL     Yes     LPT1    3BC-3BE    RTC          Yes             070, 071    KBC          Yes             060, 064.CE*//* includes */#include "ns8730xSuperIo.h"/* defines *//* typedefs *//* globals *//* forward declarations *//* externals */IMPORT UINT8 sysSioRead();IMPORT void  sysSioWrite();/********************************************************************************* ns8730xSuperIoInit - Super I/O initialization** This function performs the necessary initialization for the National* Semiconductor chips pc87307 and pc87308.** RETURNS: OK or ERROR if chip base address not found.*/STATUS ns8730xSuperIoInit (void)    {    UINT32	sioBaseAdr;    UINT8	sioType;    UINT8	dataIn;    sioBaseAdr = 0;    /*      * determine the chip type and base address for the super IO.     * Probe the two possible base addresses that the 307/308 chip      * can reside at.     */    sioType = sysSioRead( (ISA_MSTR_IO_LOCAL + SUPER_IO_BASE1), SIO_SIDPNP );    sioType = (sioType & SIO_SIDMASK);    if (( sioType == SIO_SID87307 ) || ( sioType == SIO_SID87308 ))	sioBaseAdr = (ISA_MSTR_IO_LOCAL + SUPER_IO_BASE1);    if ( sioBaseAdr == 0 )	{	sioType = sysSioRead( (ISA_MSTR_IO_LOCAL + SUPER_IO_BASE2), 			       SIO_SIDPNP );	sioType = (sioType & SIO_SIDMASK);	if (( sioType == SIO_SID87307 ) || ( sioType == SIO_SID87308 ))	    sioBaseAdr = (ISA_MSTR_IO_LOCAL + SUPER_IO_BASE2);	}    /* if no device is present, return an error */    if ( sioBaseAdr == 0 )	return (ERROR);    /*      * Do the initialization for the 308 or 307 super IO chip.     *     * First, enable the PS/2 mode in configuration register #1     */    dataIn = sysSioRead( sioBaseAdr, SIO_CNFG1 );    dataIn = (dataIn & SIO_CNFG1_MASK);    sysSioWrite( sioBaseAdr, SIO_CNFG1, dataIn );    /* do the Keyboard Controller, LUN 0 */    sysSioWrite( sioBaseAdr, SIO_LUNINDEX, SIO_LUN_KBC );    sysSioWrite( sioBaseAdr, SIO_ACTIVATE, SIO_LUNDISABLE ); /* disable KBC */    sysSioWrite( sioBaseAdr, SIO_LUNCNFGR, 0 ); /* 8 MHz clock */    sysSioWrite( sioBaseAdr, SIO_DBASEHI, 0 );    sysSioWrite( sioBaseAdr, SIO_DBASELO, SUPER_IO_KBC_BASE_ADR );    sysSioWrite( sioBaseAdr, SIO_CBASEHI, 0 );    sysSioWrite( sioBaseAdr, SIO_CBASELO, SUPER_IO_KBC_CMND_ADR );    sysSioWrite( sioBaseAdr, SIO_ACTIVATE, SIO_LUNENABLE ); /* enable the KBC */    /* do the Floppy Disk Controller, LUN 3 */    sysSioWrite( sioBaseAdr, SIO_LUNINDEX, SIO_LUN_FDC );    sysSioWrite( sioBaseAdr, SIO_IOBASEHI, SUPER_IO_FDC_BASEHI );    sysSioWrite( sioBaseAdr, SIO_IOBASELO, SUPER_IO_FDC_BASELO );    sysSioWrite( sioBaseAdr, SIO_LUNCNFGR, SUPER_IO_FDC_PS2 );    sysSioWrite( sioBaseAdr, SIO_ACTIVATE, SIO_LUNENABLE );    /* do Serial Port 2 */    sysSioWrite( sioBaseAdr, SIO_LUNINDEX, SIO_LUN_COM2 );    sysSioWrite( sioBaseAdr, SIO_IOBASEHI, SUPER_IO_COM2_BASEHI );    sysSioWrite( sioBaseAdr, SIO_IOBASELO, SUPER_IO_COM2_BASELO );    sysSioWrite( sioBaseAdr, SIO_ACTIVATE, SIO_LUNENABLE );    /* do Serial Port 1 */    sysSioWrite( sioBaseAdr, SIO_LUNINDEX, SIO_LUN_COM1 );    sysSioWrite( sioBaseAdr, SIO_IOBASEHI, SUPER_IO_COM1_BASEHI );    sysSioWrite( sioBaseAdr, SIO_IOBASELO, SUPER_IO_COM1_BASELO );    sysSioWrite( sioBaseAdr, SIO_ACTIVATE, SIO_LUNENABLE );    /* do the Parallel Port */    sysSioWrite( sioBaseAdr, SIO_LUNINDEX, SIO_LUN_PP );    sysSioWrite( sioBaseAdr, SIO_IOBASEHI, SUPER_IO_PP_BASEHI );    sysSioWrite( sioBaseAdr, SIO_IOBASELO, SUPER_IO_PP_BASELO );    sysSioWrite( sioBaseAdr, SIO_LUNCNFGR, SUPER_IO_PP_CFG );    sysSioWrite( sioBaseAdr, SIO_ACTIVATE, SIO_LUNENABLE );    return (OK);    }