bus_space_base.c revision 277465
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-v6.c 277465 2015-01-21 02:35:04Z ian $"); 34 35#include <sys/param.h> 36#include <sys/systm.h> 37#include <machine/bus.h> 38 39/* Prototypes for all the bus_space structure functions */ 40bs_protos(generic); 41bs_protos(generic_armv4); 42 43static void 44bs_unimplemented(void) 45{ 46 47 panic("unimplemented bus_space function called"); 48} 49 50#define BS_UNIMPLEMENTED (void *)bs_unimplemented 51 52/* 53 * The bus space tag. This is constant for all instances, so 54 * we never have to explicitly "create" it. 55 */ 56static struct bus_space _base_tag = { 57 /* privdata is whatever the implementer wants; unused in base tag */ 58 .bs_privdata = NULL, 59 60 /* mapping/unmapping */ 61 .bs_map = generic_bs_map, 62 .bs_unmap = generic_bs_unmap, 63 .bs_subregion = generic_bs_subregion, 64 65 /* allocation/deallocation */ 66 .bs_alloc = generic_bs_alloc, 67 .bs_free = generic_bs_free, 68 69 /* barrier */ 70 .bs_barrier = generic_bs_barrier, 71 72 /* read (single) */ 73 .bs_r_1 = NULL, /* Use inline code in bus.h */ 74 .bs_r_2 = NULL, /* Use inline code in bus.h */ 75 .bs_r_4 = NULL, /* Use inline code in bus.h */ 76 .bs_r_8 = NULL, /* Use inline code in bus.h */ 77 78 /* read multiple */ 79 .bs_rm_1 = generic_bs_rm_1, 80 .bs_rm_2 = generic_armv4_bs_rm_2, 81 .bs_rm_4 = generic_bs_rm_4, 82 .bs_rm_8 = BS_UNIMPLEMENTED, 83 84 /* read region */ 85 .bs_rr_1 = generic_bs_rr_1, 86 .bs_rr_2 = generic_armv4_bs_rr_2, 87 .bs_rr_4 = generic_bs_rr_4, 88 .bs_rr_8 = BS_UNIMPLEMENTED, 89 90 /* write (single) */ 91 .bs_w_1 = NULL, /* Use inline code in bus.h */ 92 .bs_w_2 = NULL, /* Use inline code in bus.h */ 93 .bs_w_4 = NULL, /* Use inline code in bus.h */ 94 .bs_w_8 = NULL, /* Use inline code in bus.h */ 95 96 /* write multiple */ 97 .bs_wm_1 = generic_bs_wm_1, 98 .bs_wm_2 = generic_armv4_bs_wm_2, 99 .bs_wm_4 = generic_bs_wm_4, 100 .bs_wm_8 = BS_UNIMPLEMENTED, 101 102 /* write region */ 103 .bs_wr_1 = generic_bs_wr_1, 104 .bs_wr_2 = generic_armv4_bs_wr_2, 105 .bs_wr_4 = generic_bs_wr_4, 106 .bs_wr_8 = BS_UNIMPLEMENTED, 107 108 /* set multiple */ 109 .bs_sm_1 = BS_UNIMPLEMENTED, 110 .bs_sm_2 = BS_UNIMPLEMENTED, 111 .bs_sm_4 = BS_UNIMPLEMENTED, 112 .bs_sm_8 = BS_UNIMPLEMENTED, 113 114 /* set region */ 115 .bs_sr_1 = generic_bs_sr_1, 116 .bs_sr_2 = generic_armv4_bs_sr_2, 117 .bs_sr_4 = generic_bs_sr_4, 118 .bs_sr_8 = BS_UNIMPLEMENTED, 119 120 /* copy */ 121 .bs_c_1 = BS_UNIMPLEMENTED, 122 .bs_c_2 = generic_armv4_bs_c_2, 123 .bs_c_4 = BS_UNIMPLEMENTED, 124 .bs_c_8 = BS_UNIMPLEMENTED, 125 126 /* read stream (single) */ 127 .bs_r_1_s = NULL, /* Use inline code in bus.h */ 128 .bs_r_2_s = NULL, /* Use inline code in bus.h */ 129 .bs_r_4_s = NULL, /* Use inline code in bus.h */ 130 .bs_r_8_s = NULL, /* Use inline code in bus.h */ 131 132 /* read multiple stream */ 133 .bs_rm_1_s = generic_bs_rm_1, 134 .bs_rm_2_s = generic_armv4_bs_rm_2, 135 .bs_rm_4_s = generic_bs_rm_4, 136 .bs_rm_8_s = BS_UNIMPLEMENTED, 137 138 /* read region stream */ 139 .bs_rr_1_s = generic_bs_rr_1, 140 .bs_rr_2_s = generic_bs_rr_2, 141 .bs_rr_4_s = generic_bs_rr_4, 142 .bs_rr_8_s = BS_UNIMPLEMENTED, 143 144 /* write stream (single) */ 145 .bs_w_1_s = NULL, /* Use inline code in bus.h */ 146 .bs_w_2_s = NULL, /* Use inline code in bus.h */ 147 .bs_w_4_s = NULL, /* Use inline code in bus.h */ 148 .bs_w_8_s = NULL, /* Use inline code in bus.h */ 149 150 /* write multiple stream */ 151 .bs_wm_1_s = generic_bs_wm_1, 152 .bs_wm_2_s = generic_armv4_bs_wm_2, 153 .bs_wm_4_s = generic_bs_wm_4, 154 .bs_wm_8_s = BS_UNIMPLEMENTED, 155 156 /* write region stream */ 157 .bs_wr_1_s = generic_bs_wr_1, 158 .bs_wr_2_s = generic_bs_wr_4, 159 .bs_wr_4_s = generic_bs_wr_8, 160 .bs_wr_8_s = BS_UNIMPLEMENTED, 161}; 162 163bus_space_tag_t fdtbus_bs_tag = &_base_tag; 164