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70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/* $NetBSD: gpioreg.h,v 1.4 2006/03/13 15:31:11 shige Exp $ */
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/*
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* Copyright 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Simon Burge and Eduardo Horvath for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _IBM4XX_GPIOREG_H_
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#define _IBM4XX_GPIOREG_H_
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/*
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* GPIO Registers
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*/
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/*
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* GPIO ODR Control Logic:
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* ODR OR Out TCR TS_Ctrl Module I/O 3-State Driver
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* 0 X X 0 0 Forced to high impedance state
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* 0 0 0 1 1 Drive 0
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* 0 1 1 1 1 Drive 1
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* 1 0 0 X 1 Drive 0
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* 1 1 0 X 0 Forced to high impedance state
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*/
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/* GPIO pins */
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#define GPIO_NPINS (24)
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/* GPIO Registers 0x00-0x7f */
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#define GPIO_NREG (0x80)
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#define GPIO_PIN_SHIFT(n) (31 - n)
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/* Offset */
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#define GPIO_OR (0x00) /* Output */
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#define GPIO_TCR (0x04) /* Three-State Control */
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#define GPIO_ODR (0x18) /* Open Drain */
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#define GPIO_IR (0x1c) /* Input */
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#endif /* _IBM4XX_GPIOREG_H_ */
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