1 /* $OpenBSD: mmu_sh3.h,v 1.2 2008/06/26 05:42:12 ray Exp $ */ 2 /* $NetBSD: mmu_sh3.h,v 1.6 2006/03/04 01:55:03 uwe Exp $ */ 3 4 /*- 5 * Copyright (c) 2002 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by UCHIYAMA Yasushi. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef _SH_MMU_SH3_H_ 34 #define _SH_MMU_SH3_H_ 35 #include <sh/devreg.h> 36 37 /* 128-entry 4-way set-associative */ 38 #define SH3_MMU_WAY 4 39 #define SH3_MMU_ENTRY 32 40 41 #define SH3_PTEH 0xfffffff0 42 #define SH3_PTEH_ASID_MASK 0x000000ff 43 #define SH3_PTEH_VPN_MASK 0xfffffc00 44 #define SH3_PTEL 0xfffffff4 45 #define SH3_PTEL_HWBITS 0x1ffff17e /* [28:12][8][6:1] */ 46 #define SH3_TTB 0xfffffff8 47 #define SH3_TEA 0xfffffffc 48 #define SH3_MMUCR 0xffffffe0 49 #define SH3_MMUCR_AT 0x00000001 50 #define SH3_MMUCR_IX 0x00000002 51 #define SH3_MMUCR_TF 0x00000004 52 #define SH3_MMUCR_RC 0x00000030 53 #define SH3_MMUCR_SV 0x00000100 54 55 /* 56 * memory-mapped TLB 57 */ 58 /* Address array */ 59 #define SH3_MMUAA 0xf2000000 60 /* address specification */ 61 #define SH3_MMU_VPN_SHIFT 12 62 #define SH3_MMU_VPN_MASK 0x0001f000 /* [16:12] */ 63 #define SH3_MMU_WAY_SHIFT 8 64 #define SH3_MMU_WAY_MASK 0x00000300 /* [9:8] */ 65 /* data specification */ 66 #define SH3_MMU_D_VALID 0x00000100 67 #define SH3_MMUAA_D_VPN_MASK_1K 0xfffe0c00 /* [31:17][11:10] */ 68 #define SH3_MMUAA_D_VPN_MASK_4K 0xfffe0000 /* [31:17] */ 69 #define SH3_MMUAA_D_ASID_MASK 0x000000ff 70 71 /* Data array */ 72 #define SH3_MMUDA 0xf3000000 73 #define SH3_MMUDA_D_PPN_MASK 0xfffffc00 74 #define SH3_MMUDA_D_V 0x00000100 75 #define SH3_MMUDA_D_PR_SHIFT 5 76 #define SH3_MMUDA_D_PR_MASK 0x00000060 /* [6:5] */ 77 #define SH3_MMUDA_D_SZ 0x00000010 78 #define SH3_MMUDA_D_C 0x00000008 79 #define SH3_MMUDA_D_D 0x00000004 80 #define SH3_MMUDA_D_SH 0x00000002 81 82 #define SH3_TLB_DISABLE *(volatile uint32_t *)SH3_MMUCR = SH3_MMUCR_TF 83 #endif /* !_SH_MMU_SH3_H_ */ 84