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/param.h> 33 #include <sys/systm.h> 34 #include <machine/bus.h> 35 36 #include "opt_platform.h" 37 38 /* Prototypes for all the bus_space structure functions */ 39 bs_protos(generic); 40 41 /* 42 * The bus space tag. This is constant for all instances, so 43 * we never have to explicitly "create" it. 44 */ 45 static struct bus_space arm_base_bus_space __aligned(CACHE_LINE_SIZE) = { 46 /* privdata is whatever the implementer wants; unused in base tag */ 47 .bs_privdata = NULL, 48 49 /* mapping/unmapping */ 50 .bs_map = generic_bs_map, 51 .bs_unmap = generic_bs_unmap, 52 .bs_subregion = generic_bs_subregion, 53 54 /* allocation/deallocation */ 55 .bs_alloc = generic_bs_alloc, 56 .bs_free = generic_bs_free, 57 58 /* barrier */ 59 .bs_barrier = generic_bs_barrier, 60 61 /* read (single) */ 62 .bs_r_1 = NULL, /* Use inline code in bus.h */ 63 .bs_r_2 = NULL, /* Use inline code in bus.h */ 64 .bs_r_4 = NULL, /* Use inline code in bus.h */ 65 .bs_r_8 = NULL, /* Use inline code in bus.h */ 66 67 /* read multiple */ 68 .bs_rm_1 = generic_bs_rm_1, 69 .bs_rm_2 = generic_bs_rm_2, 70 .bs_rm_4 = generic_bs_rm_4, 71 .bs_rm_8 = BS_UNIMPLEMENTED, 72 73 /* read region */ 74 .bs_rr_1 = generic_bs_rr_1, 75 .bs_rr_2 = generic_bs_rr_2, 76 .bs_rr_4 = generic_bs_rr_4, 77 .bs_rr_8 = BS_UNIMPLEMENTED, 78 79 /* write (single) */ 80 .bs_w_1 = NULL, /* Use inline code in bus.h */ 81 .bs_w_2 = NULL, /* Use inline code in bus.h */ 82 .bs_w_4 = NULL, /* Use inline code in bus.h */ 83 .bs_w_8 = NULL, /* Use inline code in bus.h */ 84 85 /* write multiple */ 86 .bs_wm_1 = generic_bs_wm_1, 87 .bs_wm_2 = generic_bs_wm_2, 88 .bs_wm_4 = generic_bs_wm_4, 89 .bs_wm_8 = BS_UNIMPLEMENTED, 90 91 /* write region */ 92 .bs_wr_1 = generic_bs_wr_1, 93 .bs_wr_2 = generic_bs_wr_2, 94 .bs_wr_4 = generic_bs_wr_4, 95 .bs_wr_8 = BS_UNIMPLEMENTED, 96 97 /* set multiple */ 98 .bs_sm_1 = BS_UNIMPLEMENTED, 99 .bs_sm_2 = BS_UNIMPLEMENTED, 100 .bs_sm_4 = BS_UNIMPLEMENTED, 101 .bs_sm_8 = BS_UNIMPLEMENTED, 102 103 /* set region */ 104 .bs_sr_1 = generic_bs_sr_1, 105 .bs_sr_2 = generic_bs_sr_2, 106 .bs_sr_4 = generic_bs_sr_4, 107 .bs_sr_8 = BS_UNIMPLEMENTED, 108 109 /* copy */ 110 .bs_c_1 = BS_UNIMPLEMENTED, 111 .bs_c_2 = generic_bs_c_2, 112 .bs_c_4 = BS_UNIMPLEMENTED, 113 .bs_c_8 = BS_UNIMPLEMENTED, 114 115 /* read stream (single) */ 116 .bs_r_1_s = NULL, /* Use inline code in bus.h */ 117 .bs_r_2_s = NULL, /* Use inline code in bus.h */ 118 .bs_r_4_s = NULL, /* Use inline code in bus.h */ 119 .bs_r_8_s = NULL, /* Use inline code in bus.h */ 120 121 /* read multiple stream */ 122 .bs_rm_1_s = generic_bs_rm_1, 123 .bs_rm_2_s = generic_bs_rm_2, 124 .bs_rm_4_s = generic_bs_rm_4, 125 .bs_rm_8_s = BS_UNIMPLEMENTED, 126 127 /* read region stream */ 128 .bs_rr_1_s = generic_bs_rr_1, 129 .bs_rr_2_s = generic_bs_rr_2, 130 .bs_rr_4_s = generic_bs_rr_4, 131 .bs_rr_8_s = BS_UNIMPLEMENTED, 132 133 /* write stream (single) */ 134 .bs_w_1_s = NULL, /* Use inline code in bus.h */ 135 .bs_w_2_s = NULL, /* Use inline code in bus.h */ 136 .bs_w_4_s = NULL, /* Use inline code in bus.h */ 137 .bs_w_8_s = NULL, /* Use inline code in bus.h */ 138 139 /* write multiple stream */ 140 .bs_wm_1_s = generic_bs_wm_1, 141 .bs_wm_2_s = generic_bs_wm_2, 142 .bs_wm_4_s = generic_bs_wm_4, 143 .bs_wm_8_s = BS_UNIMPLEMENTED, 144 145 /* write region stream */ 146 .bs_wr_1_s = generic_bs_wr_1, 147 .bs_wr_2_s = generic_bs_wr_2, 148 .bs_wr_4_s = generic_bs_wr_4, 149 .bs_wr_8_s = BS_UNIMPLEMENTED, 150 }; 151 152 #ifdef FDT 153 bus_space_tag_t fdtbus_bs_tag = &arm_base_bus_space; 154 #endif 155 156