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("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <machine/bus.h> 38 39 #include "opt_platform.h" 40 41 /* Prototypes for all the bus_space structure functions */ 42 bs_protos(generic); 43 44 /* 45 * The bus space tag. This is constant for all instances, so 46 * we never have to explicitly "create" it. 47 */ 48 static struct bus_space arm_base_bus_space __aligned(CACHE_LINE_SIZE) = { 49 /* privdata is whatever the implementer wants; unused in base tag */ 50 .bs_privdata = NULL, 51 52 /* mapping/unmapping */ 53 .bs_map = generic_bs_map, 54 .bs_unmap = generic_bs_unmap, 55 .bs_subregion = generic_bs_subregion, 56 57 /* allocation/deallocation */ 58 .bs_alloc = generic_bs_alloc, 59 .bs_free = generic_bs_free, 60 61 /* barrier */ 62 .bs_barrier = generic_bs_barrier, 63 64 /* read (single) */ 65 .bs_r_1 = NULL, /* Use inline code in bus.h */ 66 .bs_r_2 = NULL, /* Use inline code in bus.h */ 67 .bs_r_4 = NULL, /* Use inline code in bus.h */ 68 .bs_r_8 = NULL, /* Use inline code in bus.h */ 69 70 /* read multiple */ 71 .bs_rm_1 = generic_bs_rm_1, 72 .bs_rm_2 = generic_bs_rm_2, 73 .bs_rm_4 = generic_bs_rm_4, 74 .bs_rm_8 = BS_UNIMPLEMENTED, 75 76 /* read region */ 77 .bs_rr_1 = generic_bs_rr_1, 78 .bs_rr_2 = generic_bs_rr_2, 79 .bs_rr_4 = generic_bs_rr_4, 80 .bs_rr_8 = BS_UNIMPLEMENTED, 81 82 /* write (single) */ 83 .bs_w_1 = NULL, /* Use inline code in bus.h */ 84 .bs_w_2 = NULL, /* Use inline code in bus.h */ 85 .bs_w_4 = NULL, /* Use inline code in bus.h */ 86 .bs_w_8 = NULL, /* Use inline code in bus.h */ 87 88 /* write multiple */ 89 .bs_wm_1 = generic_bs_wm_1, 90 .bs_wm_2 = generic_bs_wm_2, 91 .bs_wm_4 = generic_bs_wm_4, 92 .bs_wm_8 = BS_UNIMPLEMENTED, 93 94 /* write region */ 95 .bs_wr_1 = generic_bs_wr_1, 96 .bs_wr_2 = generic_bs_wr_2, 97 .bs_wr_4 = generic_bs_wr_4, 98 .bs_wr_8 = BS_UNIMPLEMENTED, 99 100 /* set multiple */ 101 .bs_sm_1 = BS_UNIMPLEMENTED, 102 .bs_sm_2 = BS_UNIMPLEMENTED, 103 .bs_sm_4 = BS_UNIMPLEMENTED, 104 .bs_sm_8 = BS_UNIMPLEMENTED, 105 106 /* set region */ 107 .bs_sr_1 = generic_bs_sr_1, 108 .bs_sr_2 = generic_bs_sr_2, 109 .bs_sr_4 = generic_bs_sr_4, 110 .bs_sr_8 = BS_UNIMPLEMENTED, 111 112 /* copy */ 113 .bs_c_1 = BS_UNIMPLEMENTED, 114 .bs_c_2 = generic_bs_c_2, 115 .bs_c_4 = BS_UNIMPLEMENTED, 116 .bs_c_8 = BS_UNIMPLEMENTED, 117 118 /* read stream (single) */ 119 .bs_r_1_s = NULL, /* Use inline code in bus.h */ 120 .bs_r_2_s = NULL, /* Use inline code in bus.h */ 121 .bs_r_4_s = NULL, /* Use inline code in bus.h */ 122 .bs_r_8_s = NULL, /* Use inline code in bus.h */ 123 124 /* read multiple stream */ 125 .bs_rm_1_s = generic_bs_rm_1, 126 .bs_rm_2_s = generic_bs_rm_2, 127 .bs_rm_4_s = generic_bs_rm_4, 128 .bs_rm_8_s = BS_UNIMPLEMENTED, 129 130 /* read region stream */ 131 .bs_rr_1_s = generic_bs_rr_1, 132 .bs_rr_2_s = generic_bs_rr_2, 133 .bs_rr_4_s = generic_bs_rr_4, 134 .bs_rr_8_s = BS_UNIMPLEMENTED, 135 136 /* write stream (single) */ 137 .bs_w_1_s = NULL, /* Use inline code in bus.h */ 138 .bs_w_2_s = NULL, /* Use inline code in bus.h */ 139 .bs_w_4_s = NULL, /* Use inline code in bus.h */ 140 .bs_w_8_s = NULL, /* Use inline code in bus.h */ 141 142 /* write multiple stream */ 143 .bs_wm_1_s = generic_bs_wm_1, 144 .bs_wm_2_s = generic_bs_wm_2, 145 .bs_wm_4_s = generic_bs_wm_4, 146 .bs_wm_8_s = BS_UNIMPLEMENTED, 147 148 /* write region stream */ 149 .bs_wr_1_s = generic_bs_wr_1, 150 .bs_wr_2_s = generic_bs_wr_2, 151 .bs_wr_4_s = generic_bs_wr_4, 152 .bs_wr_8_s = BS_UNIMPLEMENTED, 153 }; 154 155 #ifdef FDT 156 bus_space_tag_t fdtbus_bs_tag = &arm_base_bus_space; 157 #endif 158 159