1 /* $NetBSD: mmu_sh3.h,v 1.7 2008/04/28 20:23:35 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _SH3_MMU_SH3_H_ 33 #define _SH3_MMU_SH3_H_ 34 #include <sh3/devreg.h> 35 36 /* 128-entry 4-way set-associative */ 37 #define SH3_MMU_WAY 4 38 #define SH3_MMU_ENTRY 32 39 40 #define SH3_PTEH 0xfffffff0 41 #define SH3_PTEH_ASID_MASK 0x000000ff 42 #define SH3_PTEH_VPN_MASK 0xfffffc00 43 #define SH3_PTEL 0xfffffff4 44 #define SH3_PTEL_HWBITS 0x1ffff17e /* [28:12][8][6:1] */ 45 #define SH3_TTB 0xfffffff8 46 #define SH3_TEA 0xfffffffc 47 #define SH3_MMUCR 0xffffffe0 48 #define SH3_MMUCR_AT 0x00000001 49 #define SH3_MMUCR_IX 0x00000002 50 #define SH3_MMUCR_TF 0x00000004 51 #define SH3_MMUCR_RC 0x00000030 52 #define SH3_MMUCR_SV 0x00000100 53 54 /* 55 * memory-mapped TLB 56 */ 57 /* Address array */ 58 #define SH3_MMUAA 0xf2000000 59 /* address specification */ 60 #define SH3_MMU_VPN_SHIFT 12 61 #define SH3_MMU_VPN_MASK 0x0001f000 /* [16:12] */ 62 #define SH3_MMU_WAY_SHIFT 8 63 #define SH3_MMU_WAY_MASK 0x00000300 /* [9:8] */ 64 /* data specification */ 65 #define SH3_MMU_D_VALID 0x00000100 66 #define SH3_MMUAA_D_VPN_MASK_1K 0xfffe0c00 /* [31:17][11:10] */ 67 #define SH3_MMUAA_D_VPN_MASK_4K 0xfffe0000 /* [31:17] */ 68 #define SH3_MMUAA_D_ASID_MASK 0x000000ff 69 70 /* Data array */ 71 #define SH3_MMUDA 0xf3000000 72 #define SH3_MMUDA_D_PPN_MASK 0xfffffc00 73 #define SH3_MMUDA_D_V 0x00000100 74 #define SH3_MMUDA_D_PR_SHIFT 5 75 #define SH3_MMUDA_D_PR_MASK 0x00000060 /* [6:5] */ 76 #define SH3_MMUDA_D_SZ 0x00000010 77 #define SH3_MMUDA_D_C 0x00000008 78 #define SH3_MMUDA_D_D 0x00000004 79 #define SH3_MMUDA_D_SH 0x00000002 80 81 #define SH3_TLB_DISABLE *(volatile uint32_t *)SH3_MMUCR = SH3_MMUCR_TF 82 #endif /* !_SH3_MMU_SH3_H_ */ 83