/* * * BRIEF MODULE DESCRIPTION *	ITE Semi IT8712 Super I/O functions. * * Copyright 2001 MontaVista Software Inc. * Author: MontaVista Software, Inc. *         	ppopov@mvista.com or source@mvista.com * *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT, *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *  You should have received a copy of the  GNU General Public License along *  with this program; if not, write  to the Free Software Foundation, Inc., *  675 Mass Ave, Cambridge, MA 02139, USA. */#include <asm/io.h>#include <asm/types.h>#include <asm/it8712.h>#include <asm/it8172/it8172.h>#ifndef TRUE#define TRUE 1#endif#ifndef FALSE#define FALSE 0#endifvoid LPCEnterMBPnP(void){	int i;	unsigned char key[4] = {0x87, 0x01, 0x55, 0x55};	for (i = 0; i<4; i++)		outb(key[i], LPC_KEY_ADDR);}void LPCExitMBPnP(void){	outb(0x02, LPC_KEY_ADDR);	outb(0x02, LPC_DATA_ADDR);}void LPCSetConfig(char LdnNumber, char Index, char data){	LPCEnterMBPnP();				// Enter IT8712 MB PnP mode	outb(0x07, LPC_KEY_ADDR);	outb(LdnNumber, LPC_DATA_ADDR);	outb(Index, LPC_KEY_ADDR);		outb(data, LPC_DATA_ADDR);	LPCExitMBPnP();}char LPCGetConfig(char LdnNumber, char Index){	char rtn;	LPCEnterMBPnP();				// Enter IT8712 MB PnP mode	outb(0x07, LPC_KEY_ADDR);	outb(LdnNumber, LPC_DATA_ADDR);	outb(Index, LPC_KEY_ADDR);		rtn = inb(LPC_DATA_ADDR);	LPCExitMBPnP();	return rtn;}int SearchIT8712(void){	unsigned char Id1, Id2;	unsigned short Id;	LPCEnterMBPnP();	outb(0x20, LPC_KEY_ADDR); /* chip id byte 1 */	Id1 = inb(LPC_DATA_ADDR);	outb(0x21, LPC_KEY_ADDR); /* chip id byte 2 */	Id2 = inb(LPC_DATA_ADDR);	Id = (Id1 << 8) | Id2;	LPCExitMBPnP();	if (Id == 0x8712) 		return TRUE;	else		return FALSE;}void InitLPCInterface(void){	unsigned char bus, dev_fn;	unsigned long data;	bus = 0;	dev_fn = 1<<3 | 4; 	/* pci cmd, SERR# Enable */	IT_WRITE(IT_CONFADDR,  		 (bus         << IT_BUSNUM_SHF)   |		 (dev_fn      << IT_FUNCNUM_SHF) |		 ((0x4 / 4) << IT_REGNUM_SHF));	IT_READ(IT_CONFDATA, data);	data |= 0x0100;	IT_WRITE(IT_CONFADDR,  		 (bus         << IT_BUSNUM_SHF)   |		 (dev_fn      << IT_FUNCNUM_SHF) |		 ((0x4 / 4) << IT_REGNUM_SHF));	IT_WRITE(IT_CONFDATA, data);	/* setup serial irq control register */	IT_WRITE(IT_CONFADDR,  		 (bus         << IT_BUSNUM_SHF)   |		 (dev_fn      << IT_FUNCNUM_SHF) |		 ((0x48 / 4) << IT_REGNUM_SHF));	IT_READ(IT_CONFDATA, data);	data  = (data & 0xffff00ff) | 0xc400;	IT_WRITE(IT_CONFADDR,  		 (bus         << IT_BUSNUM_SHF)   |		 (dev_fn      << IT_FUNCNUM_SHF) |		 ((0x48 / 4) << IT_REGNUM_SHF));	IT_WRITE(IT_CONFDATA, data);	/* Enable I/O Space Subtractive Decode */	/* default 0x4C is 0x3f220000 */	IT_WRITE(IT_CONFADDR,  		 (bus         << IT_BUSNUM_SHF)   |		 (dev_fn      << IT_FUNCNUM_SHF) |		 ((0x4C / 4) << IT_REGNUM_SHF));	IT_WRITE(IT_CONFDATA, 0x3f2200f3);}