ar_conf.c revision 1.1
1 /* $NetBSD: ar_conf.c,v 1.1 2011/07/07 05:06:44 matt Exp $ */ 2 /*- 3 * Copyright (c) 2011 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Matt Thomas of 3am Software Foundry. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 33 __KERNEL_RCSID(0, "$NetBSD: ar_conf.c,v 1.1 2011/07/07 05:06:44 matt Exp $"); 34 35 #include <sys/param.h> 36 37 #include "opt_wisoc.h" 38 39 #include <mips/cpuregs.h> 40 #include <mips/locore.h> 41 42 #include <mips/atheros/include/platform.h> 43 #include <mips/atheros/include/ar9344reg.h> 44 45 struct atheros_chip { 46 const struct atheros_platformsw *ac_platformsw; 47 const struct atheros_boardsw *ac_boardsw; 48 uint8_t ac_chipid; 49 uint8_t ac_chipmask; 50 uint8_t ac_cid; 51 uint8_t ac_pid; 52 const char ac_name[8]; 53 }; 54 55 static const struct atheros_chip chips[] = { 56 #ifdef WISOC_AR5312 57 { 58 .ac_platformsw = &ar5312_platformsw, 59 .ac_boardsw = &ar5312_boardsw, 60 .ac_chipid = ARCHIP_AR5312, 61 .ac_chipmask = 0xff, 62 .ac_cid = MIPS_PRID_CID_MTI, 63 .ac_pid = MIPS_4Kc, 64 .ac_name = "AR5312" 65 }, 66 #endif 67 #ifdef WISOC_AR5315 68 { 69 .ac_platformsw = &ar5315_platformsw, 70 .ac_boardsw = &ar5315_boardsw, 71 .ac_chipid = ARCHIP_AR5315, 72 .ac_chipmask = 0xf0, 73 .ac_cid = MIPS_PRID_CID_MTI, 74 .ac_pid = MIPS_4Kc, 75 .ac_name = "AR5315" 76 }, 77 #endif 78 #ifdef WISOC_AR7100 79 { 80 .ac_platformsw = &ar7100_platformsw, 81 .ac_chipid = ARCHIP_AR7130, 82 .ac_chipmask = 0xf3, 83 .ac_cid = MIPS_PRID_CID_MTI, 84 .ac_pid = MIPS_24K, 85 .ac_name = "AR7130" 86 }, { 87 .ac_platformsw = &ar7100_platformsw, 88 .ac_chipid = ARCHIP_AR7141, 89 .ac_chipmask = 0xf3, 90 .ac_cid = MIPS_PRID_CID_MTI, 91 .ac_pid = MIPS_24K, 92 .ac_name = "AR7141" 93 }, { 94 .ac_platformsw = &ar7100_platformsw, 95 .ac_chipid = ARCHIP_AR7161, 96 .ac_chipmask = 0xf3, 97 .ac_cid = MIPS_PRID_CID_MTI, 98 .ac_pid = MIPS_24K, 99 .ac_name = "AR7161" 100 }, 101 #endif 102 #ifdef WISOC_AR9344 103 { 104 .ac_platformsw = &ar9344_platformsw, 105 .ac_chipid = ARCHIP_AR9344, 106 .ac_chipmask = 0xff, 107 .ac_cid = MIPS_PRID_CID_MTI, 108 .ac_pid = MIPS_74K, 109 .ac_name = "AR9344" 110 }, 111 #endif 112 }; 113 114 __CTASSERT(__arraycount(chips) > 0); 115 116 const struct atheros_platformsw *platformsw; 117 118 static const struct atheros_chip *my_chip; 119 120 static struct arfreqs chip_freqs; 121 122 const char * 123 atheros_get_cpuname(void) 124 { 125 return my_chip->ac_name; 126 } 127 128 u_int 129 atheros_get_chipid(void) 130 { 131 return my_chip->ac_chipid; 132 } 133 134 uint32_t 135 atheros_get_bus_freq(void) 136 { 137 return chip_freqs.freq_bus; 138 } 139 140 uint32_t 141 atheros_get_cpu_freq(void) 142 { 143 return chip_freqs.freq_cpu; 144 } 145 146 uint32_t 147 atheros_get_mem_freq(void) 148 { 149 return chip_freqs.freq_mem; 150 } 151 152 void 153 atheros_set_platformsw(void) 154 { 155 const u_int cid = MIPS_PRID_CID(mips_options.mips_cpu_id); 156 const u_int pid = MIPS_PRID_IMPL(mips_options.mips_cpu_id); 157 158 for (const struct atheros_chip *ac = chips; 159 ac < chips + __arraycount(chips); 160 ac++) { 161 const struct atheros_platformsw * const apsw = ac->ac_platformsw; 162 if (cid != ac->ac_cid || pid != ac->ac_pid) 163 continue; 164 165 const uint32_t revision_id = *(volatile uint32_t *) 166 MIPS_PHYS_TO_KSEG1(apsw->apsw_revision_id_addr); 167 const uint32_t chipid = AR9344_REVISION_CHIPID(revision_id); 168 169 if ((chipid & ac->ac_chipmask) == ac->ac_chipid) { 170 platformsw = apsw; 171 my_chip = ac; 172 atheros_early_consinit(); 173 printf("Early console started!\n"); 174 (*apsw->apsw_get_freqs)(&chip_freqs); 175 return; 176 } 177 } 178 panic("%s: unrecognized platform", __func__); 179 } 180 181 #include "ath_arbus.h" 182 #if NATH_ARBUS > 0 183 #include <ah_soc.h> 184 185 const struct ar531x_boarddata * 186 atheros_get_board_info(void) 187 { 188 const struct atheros_boardsw * const boardsw = my_chip->ac_boardsw; 189 if (boardsw == NULL) 190 return NULL; 191 return (*boardsw->absw_get_board_info)(); 192 } 193 194 /* 195 * Locate board and radio configuration data in flash. 196 */ 197 int 198 atheros_get_board_config(struct ar531x_config *config) 199 { 200 const struct atheros_boardsw * const boardsw = my_chip->ac_boardsw; 201 if (boardsw == NULL) 202 return ENOENT; 203 204 config->board = (*boardsw->absw_get_board_info)(); 205 if (config->board == NULL) 206 return ENOENT; 207 208 config->radio = (*boardsw->absw_get_radio_info)(); 209 if (config->radio == NULL) 210 return ENOENT; /* XXX distinct code */ 211 212 return 0; 213 } 214 #endif /* NATH_ARBUS > 0 */ 215
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