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      1 /*	$NetBSD: gtbrgreg.h,v 1.3 2016/01/15 12:09:15 joerg Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2002 Allegro Networks, Inc., Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed for the NetBSD Project by
     18  *      Allegro Networks, Inc., and Wasabi Systems, Inc.
     19  * 4. The name of Allegro Networks, Inc. may not be used to endorse
     20  *    or promote products derived from this software without specific prior
     21  *    written permission.
     22  * 5. The name of Wasabi Systems, Inc. may not be used to endorse
     23  *    or promote products derived from this software without specific prior
     24  *    written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY ALLEGRO NETWORKS, INC. AND
     27  * WASABI SYSTEMS, INC. ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
     28  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
     29  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     30  * IN NO EVENT SHALL EITHER ALLEGRO NETWORKS, INC. OR WASABI SYSTEMS, INC.
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 /*
     41  * gtbrgreg.h - register defines for GT-64260 Baud Rate Generator
     42  *
     43  * creation	Thu Apr 12 21:47:54 PDT 2001	cliff
     44  */
     45 
     46 #ifndef _GTBRGREG_H
     47 #define _GTBRGREG_H
     48 
     49 #define GTBRG_NCHAN	3               /* Number of MPSC channels */
     50 
     51 /*******************************************************************************
     52  *
     53  * BRG register address offsets relative to the base mapping
     54  */
     55 #define BRG_BCR(c)	(0xb200 + ((c) << 3))	/* Baud Config Register */
     56 #define BRG_BTR(c)	(0xb204 + ((c) << 3))	/* Baud Tuning Register */
     57 #define BRG_CAUSE	0xb834			/* BRG Cause Register */
     58 #define BRG_MASK	0xb8b4			/* BRG Cause Register */
     59 
     60 /*******************************************************************************
     61  *
     62  * BRG register values & bit defines
     63  */
     64 /*
     65  * BRG Configuration Register bits
     66  */
     67 #define BRG_BCR_CDV		__BITS(15,0)	/* Count Down Value */
     68 #define BRG_BCR_EN		__BIT(16)	/* Enable BRG */
     69 #define BRG_BCR_RST		__BIT(17)	/* Reset BRG */
     70 #define BRG_BCR_CLKS_MASK	__BITS(22,18)	/* Clock Source */
     71 #define BRG_BCR_CLKS_BCLKIN	(0 << 18)	/* from MPP */
     72 #define BRG_BCR_CLKS_SCLK0	(2 << 18)	/* from S0 port */
     73 #define BRG_BCR_CLKS_TSCLK0	(3 << 18)	/* from S0 port */
     74 #define BRG_BCR_CLKS_SCLK1	(6 << 18)	/* from S1 port */
     75 #define BRG_BCR_CLKS_TSCLK1	(7 << 18)	/* from S1 port */
     76 #define BRG_BCR_CLKS_TCLK	(8 << 18)	/* "Tclk" ??? */
     77 						/* all other values resvd. */
     78 #define BRG_BCR_RES		__BITS(31,23)
     79 /*
     80  * BRG Baud Tuning Register bits
     81  */
     82 #define BRG_BTR_CUV		__BITS(15,0)	/* Count Up Value */
     83 #define BRG_BTR_RES		__BITS(31,16)
     84 /*
     85  * BRG Cause and Mask interrupt Register bits
     86  */
     87 #define BRG_INTR_BTR0		__BIT(0)	/* Baud Tuning 0 irpt. */
     88 #define BRG_INTR_BTR1		__BIT(1)	/* Baud Tuning 1 irpt. */
     89 #define BRG_INTR_BTR2		__BIT(2)	/* Baud Tuning 2 irpt. */
     90 #define BRG_INTR_RES		__BITS(31,3)
     91 
     92 #endif	/* _GTBRGREG_H */
     93