/* $NetBSD: gpioreg.h,v 1.4 2006/03/13 15:31:11 shige Exp $ */ /* * Copyright 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Simon Burge and Eduardo Horvath for Wasabi Systems, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC * 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. */ #ifndef _IBM4XX_GPIOREG_H_ #define _IBM4XX_GPIOREG_H_ /* * GPIO Registers */ /* * GPIO ODR Control Logic: * ODR OR Out TCR TS_Ctrl Module I/O 3-State Driver * 0 X X 0 0 Forced to high impedance state * 0 0 0 1 1 Drive 0 * 0 1 1 1 1 Drive 1 * 1 0 0 X 1 Drive 0 * 1 1 0 X 0 Forced to high impedance state */ /* GPIO pins */ #define GPIO_NPINS (24) /* GPIO Registers 0x00-0x7f */ #define GPIO_NREG (0x80) #define GPIO_PIN_SHIFT(n) (31 - n) /* Offset */ #define GPIO_OR (0x00) /* Output */ #define GPIO_TCR (0x04) /* Three-State Control */ #define GPIO_ODR (0x18) /* Open Drain */ #define GPIO_IR (0x1c) /* Input */ #endif /* _IBM4XX_GPIOREG_H_ */ |