/* * i810-tco 0.02: TCO timer driver for i810 chipsets * * (c) Copyright 2000 kernel concepts , All Rights Reserved. * http://www.kernelconcepts.de * * 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. * * Neither kernel concepts nor Nils Faerber admit liability nor provide * warranty for any of this software. This material is provided * "AS-IS" and at no charge. * * (c) Copyright 2000 kernel concepts * developed for * Jentro AG, Haar/Munich (Germany) * * TCO timer driver for i810 chipsets * based on softdog.c by Alan Cox * * The TCO timer is implemented in the 82801AA (82801AB) chip, * see intel documentation from http://developer.intel.com, * order number 290655-003 * * For history see i810-tco.c */ /* * Some address definitions for the i810 TCO */ #define TCOBASE ACPIBASE + 0x60 /* TCO base address */ #define TCO1_RLD TCOBASE + 0x00 /* TCO Timer Reload and Current Value */ #define TCO1_TMR TCOBASE + 0x01 /* TCO Timer Initial Value */ #define TCO1_DAT_IN TCOBASE + 0x02 /* TCO Data In Register */ #define TCO1_DAT_OUT TCOBASE + 0x03 /* TCO Data Out Register */ #define TCO1_STS TCOBASE + 0x04 /* TCO1 Status Register */ #define TCO2_STS TCOBASE + 0x06 /* TCO2 Status Register */ #define TCO1_CNT TCOBASE + 0x08 /* TCO1 Control Register */ #define TCO2_CNT TCOBASE + 0x0a /* TCO2 Control Register */ #define SMI_EN ACPIBASE + 0x30 /* SMI Control and Enable Register */