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sr_601.h revision 1.4 
      1 /*	$NetBSD: sr_601.h,v 1.4 2007/04/09 17:35:14 garbled Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002, 2004 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Klaus J. Klein.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _POWERPC_OEA_SR_601_H_
     40 #define _POWERPC_OEA_SR_601_H_
     41 
     42 /*
     43  * I/O Controller Interface Address Translation segment register
     44  * format specific to the PowerPC 601, per PowerPC 601 RISC
     45  * Microprocessor User's Manual, section 6.10.1.
     46  *
     47  * This format applies to a segment register only when its T bit is set.
     48  */
     49 
     50 #define	SR601_T		0x80000000	/* Selects this format */
     51 #define	SR601_Ks	0x40000000	/* Key-supervisor */
     52 #define	SR601_Ku	0x20000000	/* Key-user */
     53 #define	SR601_BUID	0x1ff00000	/* Bus unit ID */
     54 #define	SR601_BUID_SHFT	20
     55 #define	SR601_CSI	0x000ffff0	/* Controller Specific Information */
     56 #define	SR601_CSI_SHFT	4
     57 #define	SR601_PACKET1	0x0000000f	/* Address bits 0:3 of packet 1 cycle */
     58 
     59 #define	SR601_BUID_MEMFORCED	0x07f	/* Translate to memory access, taking
     60 					   PA[0:3] from the PACKET1 field */
     61 
     62 #define	SR601(key, buid, csi, p1)				\
     63 	(SR601_T |						\
     64 	 (key) |						\
     65 	 (buid) << SR601_BUID_SHFT |				\
     66 	 (csi) << SR601_CSI_SHFT | (p1))
     67 
     68 #define SR601_VALID_P(sr)					\
     69 	((sr) & SR601_T)
     70 
     71 #define	SR601_PA_MATCH_P(sr, pa) 				\
     72 	 (((sr) & SR601_PACKET1) == ((pa) >> ADDR_SR_SHFT))
     73 
     74 #ifdef _KERNEL
     75 void mpc601_ioseg_add(paddr_t, register_t);
     76 #endif
     77 
     78 #endif /* !_POWERPC_OEA_SR_601_H_ */
     79