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sh3.h revision 1.2
      1 /* -*-C++-*-	$NetBSD: sh3.h,v 1.2 2004/08/06 18:33:09 uch Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      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 _HPCBOOT_SH_CPU_SH3_H_
     40 #define	_HPCBOOT_SH_CPU_SH3_H_
     41 #include <sh3/cpu/sh.h>
     42 
     43 /*
     44  * SH3 designed for Windows CE (SH7709, SH7709A) common defines.
     45  */
     46 #define	SH3_TRA			0xffffffd0
     47 #define	SH3_EXPEVT		0xffffffd4
     48 #define	SH3_INTEVT		0xffffffd8
     49 #define	SH3_INTEVT2		0xa4000000
     50 
     51 /* Windows CE uses 1Kbyte page for SH3, 4Kbyte for SH4 */
     52 #define	SH3_PAGE_SIZE		0x400
     53 #define	SH3_PAGE_MASK		(~(SH3_PAGE_SIZE - 1))
     54 
     55 /*
     56  * Cache (Windows CE uses normal-mode.)
     57  */
     58 #define	SH3_CCR			0xffffffec
     59 #define	SH3_CCR_CE		  0x00000001
     60 #define	SH3_CCR_WT		  0x00000002
     61 #define	SH3_CCR_CB		  0x00000004
     62 #define	SH3_CCR_CF		  0x00000008
     63 #define	SH3_CCR_RA		  0x00000020
     64 #define	SH3_CCA			0xf0000000
     65 #define	SH3_CCD			0xf1000000
     66 
     67 /*
     68  * 4-way set-associative 32-entry (total 128 entries)
     69  */
     70 #define	SH3_MMU_WAY			4
     71 #define	SH3_MMU_ENTRY			32
     72 
     73 #define	SH3_PTEH			0xfffffff0
     74 #define	  SH3_PTEH_ASID_MASK		  0x0000000f
     75 #define	  SH3_PTEH_VPN_MASK		  0xfffffc00
     76 #define	SH3_MMUCR			0xffffffe0
     77 #define	  SH3_MMUCR_AT			  0x00000001
     78 #define	  SH3_MMUCR_IX			  0x00000002
     79 #define	  SH3_MMUCR_TF			  0x00000004
     80 #define	  SH3_MMUCR_RC			  0x00000030
     81 #define	  SH3_MMUCR_SV			  0x00000100
     82 
     83 /*
     84  * memory-mapped TLB
     85  */
     86 /* Address array */
     87 #define	SH3_MMUAA			0xf2000000
     88 /* address specification */
     89 #define	  SH3_MMU_VPN_SHIFT		  12
     90 #define	  SH3_MMU_VPN_MASK		  0x0001f000	/* [16:12] */
     91 #define	  SH3_MMU_WAY_SHIFT		  8
     92 #define	  SH3_MMU_WAY_MASK		  0x00000300
     93 /* data specification */
     94 #define	  SH3_MMU_D_VALID		  0x00000100
     95 #define	  SH3_MMUAA_D_VPN_MASK		  0xfffe0c00	/* [31:17][11:10] */
     96 #define	  SH3_MMUAA_D_ASID_MASK		  0x0000000f
     97 
     98 /* Data array */
     99 #define	SH3_MMUDA			0xf3000000
    100 #define	  SH3_MMUDA_D_PPN_MASK		  0xfffffc00
    101 #define	  SH3_MMUDA_D_V			  0x00000100
    102 #define	  SH3_MMUDA_D_PR_SHIFT		  5
    103 #define	  SH3_MMUDA_D_PR_MASK		  0x00000060	/* [6:5] */
    104 #define	  SH3_MMUDA_D_SZ		  0x00000010
    105 #define	  SH3_MMUDA_D_C			  0x00000008
    106 #define	  SH3_MMUDA_D_D			  0x00000004
    107 #define	  SH3_MMUDA_D_SH		  0x00000002
    108 
    109 
    110 #define	SH3_MMU_DISABLE()	_reg_write_4(SH3_MMUCR, SH3_MMUCR_TF)
    111 
    112 /*
    113  * Product dependent headers
    114  */
    115 #include <sh3/cpu/7707.h>
    116 #include <sh3/cpu/7709.h>
    117 #include <sh3/cpu/7709a.h>
    118 
    119 #endif // _HPCBOOT_SH_CPU_SH3_H_
    120