bus_space_base.c revision 291131
1/*- 2 * Copyright (C) 2008 MARVELL INTERNATIONAL LTD. 3 * All rights reserved. 4 * 5 * Developed by Semihalf. 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. Neither the name of MARVELL nor the names of contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33__FBSDID("$FreeBSD: head/sys/arm/arm/bus_space_base.c 291131 2015-11-21 13:02:34Z andrew $"); 34 35#include <sys/param.h> 36#include <sys/systm.h> 37#include <machine/bus.h> 38#include <machine/acle-compat.h> 39 40#include "opt_platform.h" 41 42/* Prototypes for all the bus_space structure functions */ 43bs_protos(generic); 44 45/* 46 * The bus space tag. This is constant for all instances, so 47 * we never have to explicitly "create" it. 48 */ 49static struct bus_space arm_base_bus_space __aligned(CACHE_LINE_SIZE) = { 50 /* privdata is whatever the implementer wants; unused in base tag */ 51 .bs_privdata = NULL, 52 53 /* mapping/unmapping */ 54 .bs_map = generic_bs_map, 55 .bs_unmap = generic_bs_unmap, 56 .bs_subregion = generic_bs_subregion, 57 58 /* allocation/deallocation */ 59 .bs_alloc = generic_bs_alloc, 60 .bs_free = generic_bs_free, 61 62 /* barrier */ 63 .bs_barrier = generic_bs_barrier, 64 65 /* read (single) */ 66 .bs_r_1 = NULL, /* Use inline code in bus.h */ 67 .bs_r_2 = NULL, /* Use inline code in bus.h */ 68 .bs_r_4 = NULL, /* Use inline code in bus.h */ 69 .bs_r_8 = NULL, /* Use inline code in bus.h */ 70 71 /* read multiple */ 72 .bs_rm_1 = generic_bs_rm_1, 73 .bs_rm_2 = generic_bs_rm_2, 74 .bs_rm_4 = generic_bs_rm_4, 75 .bs_rm_8 = BS_UNIMPLEMENTED, 76 77 /* read region */ 78 .bs_rr_1 = generic_bs_rr_1, 79 .bs_rr_2 = generic_bs_rr_2, 80 .bs_rr_4 = generic_bs_rr_4, 81 .bs_rr_8 = BS_UNIMPLEMENTED, 82 83 /* write (single) */ 84 .bs_w_1 = NULL, /* Use inline code in bus.h */ 85 .bs_w_2 = NULL, /* Use inline code in bus.h */ 86 .bs_w_4 = NULL, /* Use inline code in bus.h */ 87 .bs_w_8 = NULL, /* Use inline code in bus.h */ 88 89 /* write multiple */ 90 .bs_wm_1 = generic_bs_wm_1, 91 .bs_wm_2 = generic_bs_wm_2, 92 .bs_wm_4 = generic_bs_wm_4, 93 .bs_wm_8 = BS_UNIMPLEMENTED, 94 95 /* write region */ 96 .bs_wr_1 = generic_bs_wr_1, 97 .bs_wr_2 = generic_bs_wr_2, 98 .bs_wr_4 = generic_bs_wr_4, 99 .bs_wr_8 = BS_UNIMPLEMENTED, 100 101 /* set multiple */ 102 .bs_sm_1 = BS_UNIMPLEMENTED, 103 .bs_sm_2 = BS_UNIMPLEMENTED, 104 .bs_sm_4 = BS_UNIMPLEMENTED, 105 .bs_sm_8 = BS_UNIMPLEMENTED, 106 107 /* set region */ 108 .bs_sr_1 = generic_bs_sr_1, 109 .bs_sr_2 = generic_bs_sr_2, 110 .bs_sr_4 = generic_bs_sr_4, 111 .bs_sr_8 = BS_UNIMPLEMENTED, 112 113 /* copy */ 114 .bs_c_1 = BS_UNIMPLEMENTED, 115 .bs_c_2 = generic_bs_c_2, 116 .bs_c_4 = BS_UNIMPLEMENTED, 117 .bs_c_8 = BS_UNIMPLEMENTED, 118 119 /* read stream (single) */ 120 .bs_r_1_s = NULL, /* Use inline code in bus.h */ 121 .bs_r_2_s = NULL, /* Use inline code in bus.h */ 122 .bs_r_4_s = NULL, /* Use inline code in bus.h */ 123 .bs_r_8_s = NULL, /* Use inline code in bus.h */ 124 125 /* read multiple stream */ 126 .bs_rm_1_s = generic_bs_rm_1, 127 .bs_rm_2_s = generic_bs_rm_2, 128 .bs_rm_4_s = generic_bs_rm_4, 129 .bs_rm_8_s = BS_UNIMPLEMENTED, 130 131 /* read region stream */ 132 .bs_rr_1_s = generic_bs_rr_1, 133 .bs_rr_2_s = generic_bs_rr_2, 134 .bs_rr_4_s = generic_bs_rr_4, 135 .bs_rr_8_s = BS_UNIMPLEMENTED, 136 137 /* write stream (single) */ 138 .bs_w_1_s = NULL, /* Use inline code in bus.h */ 139 .bs_w_2_s = NULL, /* Use inline code in bus.h */ 140 .bs_w_4_s = NULL, /* Use inline code in bus.h */ 141 .bs_w_8_s = NULL, /* Use inline code in bus.h */ 142 143 /* write multiple stream */ 144 .bs_wm_1_s = generic_bs_wm_1, 145 .bs_wm_2_s = generic_bs_wm_2, 146 .bs_wm_4_s = generic_bs_wm_4, 147 .bs_wm_8_s = BS_UNIMPLEMENTED, 148 149 /* write region stream */ 150 .bs_wr_1_s = generic_bs_wr_1, 151 .bs_wr_2_s = generic_bs_wr_2, 152 .bs_wr_4_s = generic_bs_wr_4, 153 .bs_wr_8_s = BS_UNIMPLEMENTED, 154}; 155 156#ifdef FDT 157bus_space_tag_t fdtbus_bs_tag = &arm_base_bus_space; 158#endif 159 160#if __ARM_ARCH < 6 161bus_space_tag_t arm_base_bs_tag = &arm_base_bus_space; 162#endif 163