1 /* 2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org> 3 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> 4 * Copyright (C) 2006 Michael Buesch <m@bues.ch> 5 * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org> 6 * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de> 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2 of the License, or (at your 11 * option) any later version. 12 * 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 * You should have received a copy of the GNU General Public License along 25 * with this program; if not, write to the Free Software Foundation, Inc., 26 * 675 Mass Ave, Cambridge, MA 02139, USA. 27 */ 28 29 #include <linux/bcm47xx_nvram.h> 30 #include <linux/bcma/bcma.h> 31 #include <linux/etherdevice.h> 32 #include <linux/if_ether.h> 33 #include <linux/ssb/ssb.h> 34 35 static void create_key(const char *prefix, const char *postfix, 36 const char *name, char *buf, int len) 37 { 38 if (prefix && postfix) 39 snprintf(buf, len, "%s%s%s", prefix, name, postfix); 40 else if (prefix) 41 snprintf(buf, len, "%s%s", prefix, name); 42 else if (postfix) 43 snprintf(buf, len, "%s%s", name, postfix); 44 else 45 snprintf(buf, len, "%s", name); 46 } 47 48 static int get_nvram_var(const char *prefix, const char *postfix, 49 const char *name, char *buf, int len, bool fallback) 50 { 51 char key[40]; 52 int err; 53 54 create_key(prefix, postfix, name, key, sizeof(key)); 55 56 err = bcm47xx_nvram_getenv(key, buf, len); 57 if (fallback && err == -ENOENT && prefix) { 58 create_key(NULL, postfix, name, key, sizeof(key)); 59 err = bcm47xx_nvram_getenv(key, buf, len); 60 } 61 return err; 62 } 63 64 #define NVRAM_READ_VAL(type) \ 65 static void nvram_read_ ## type(const char *prefix, \ 66 const char *postfix, const char *name, \ 67 type *val, type allset, bool fallback) \ 68 { \ 69 char buf[100]; \ 70 int err; \ 71 type var; \ 72 \ 73 err = get_nvram_var(prefix, postfix, name, buf, sizeof(buf), \ 74 fallback); \ 75 if (err < 0) \ 76 return; \ 77 err = kstrto ## type(strim(buf), 0, &var); \ 78 if (err) { \ 79 pr_warn("can not parse nvram name %s%s%s with value %s got %i\n", \ 80 prefix, name, postfix, buf, err); \ 81 return; \ 82 } \ 83 if (allset && var == allset) \ 84 return; \ 85 *val = var; \ 86 } 87 88 NVRAM_READ_VAL(u8) 89 NVRAM_READ_VAL(s8) 90 NVRAM_READ_VAL(u16) 91 NVRAM_READ_VAL(u32) 92 93 #undef NVRAM_READ_VAL 94 95 static void nvram_read_u32_2(const char *prefix, const char *name, 96 u16 *val_lo, u16 *val_hi, bool fallback) 97 { 98 char buf[100]; 99 int err; 100 u32 val; 101 102 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback); 103 if (err < 0) 104 return; 105 err = kstrtou32(strim(buf), 0, &val); 106 if (err) { 107 pr_warn("can not parse nvram name %s%s with value %s got %i\n", 108 prefix, name, buf, err); 109 return; 110 } 111 *val_lo = (val & 0x0000FFFFU); 112 *val_hi = (val & 0xFFFF0000U) >> 16; 113 } 114 115 static void nvram_read_leddc(const char *prefix, const char *name, 116 u8 *leddc_on_time, u8 *leddc_off_time, 117 bool fallback) 118 { 119 char buf[100]; 120 int err; 121 u32 val; 122 123 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback); 124 if (err < 0) 125 return; 126 err = kstrtou32(strim(buf), 0, &val); 127 if (err) { 128 pr_warn("can not parse nvram name %s%s with value %s got %i\n", 129 prefix, name, buf, err); 130 return; 131 } 132 133 if (val == 0xffff || val == 0xffffffff) 134 return; 135 136 *leddc_on_time = val & 0xff; 137 *leddc_off_time = (val >> 16) & 0xff; 138 } 139 140 static void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6]) 141 { 142 if (strchr(buf, ':')) 143 sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0], 144 &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4], 145 &macaddr[5]); 146 else if (strchr(buf, '-')) 147 sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0], 148 &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4], 149 &macaddr[5]); 150 else 151 pr_warn("Can not parse mac address: %s\n", buf); 152 } 153 154 static void nvram_read_macaddr(const char *prefix, const char *name, 155 u8 val[6], bool fallback) 156 { 157 char buf[100]; 158 int err; 159 160 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback); 161 if (err < 0) 162 return; 163 164 bcm47xx_nvram_parse_macaddr(buf, val); 165 } 166 167 static void nvram_read_alpha2(const char *prefix, const char *name, 168 char val[2], bool fallback) 169 { 170 char buf[10]; 171 int err; 172 173 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback); 174 if (err < 0) 175 return; 176 if (buf[0] == '0') 177 return; 178 if (strlen(buf) > 2) { 179 pr_warn("alpha2 is too long %s\n", buf); 180 return; 181 } 182 memcpy(val, buf, 2); 183 } 184 185 /* This is one-function-only macro, it uses local "sprom" variable! */ 186 #define ENTRY(_revmask, _type, _prefix, _name, _val, _allset, _fallback) \ 187 if (_revmask & BIT(sprom->revision)) \ 188 nvram_read_ ## _type(_prefix, NULL, _name, &sprom->_val, \ 189 _allset, _fallback) 190 /* 191 * Special version of filling function that can be safely called for any SPROM 192 * revision. For every NVRAM to SPROM mapping it contains bitmask of revisions 193 * for which the mapping is valid. 194 * It obviously requires some hexadecimal/bitmasks knowledge, but allows 195 * writing cleaner code (easy revisions handling). 196 * Note that while SPROM revision 0 was never used, we still keep BIT(0) 197 * reserved for it, just to keep numbering sane. 198 */ 199 static void bcm47xx_sprom_fill_auto(struct ssb_sprom *sprom, 200 const char *prefix, bool fallback) 201 { 202 const char *pre = prefix; 203 bool fb = fallback; 204 205 /* Broadcom extracts it for rev 8+ but it was found on 2 and 4 too */ 206 ENTRY(0xfffffffe, u16, pre, "devid", dev_id, 0, fallback); 207 208 ENTRY(0xfffffffe, u16, pre, "boardrev", board_rev, 0, true); 209 ENTRY(0xfffffffe, u32, pre, "boardflags", boardflags, 0, fb); 210 ENTRY(0xfffffff0, u32, pre, "boardflags2", boardflags2, 0, fb); 211 ENTRY(0xfffff800, u32, pre, "boardflags3", boardflags3, 0, fb); 212 ENTRY(0x00000002, u16, pre, "boardflags", boardflags_lo, 0, fb); 213 ENTRY(0xfffffffc, u16, pre, "boardtype", board_type, 0, true); 214 ENTRY(0xfffffffe, u16, pre, "boardnum", board_num, 0, fb); 215 ENTRY(0x00000002, u8, pre, "cc", country_code, 0, fb); 216 ENTRY(0xfffffff8, u8, pre, "regrev", regrev, 0, fb); 217 218 ENTRY(0xfffffffe, u8, pre, "ledbh0", gpio0, 0xff, fb); 219 ENTRY(0xfffffffe, u8, pre, "ledbh1", gpio1, 0xff, fb); 220 ENTRY(0xfffffffe, u8, pre, "ledbh2", gpio2, 0xff, fb); 221 ENTRY(0xfffffffe, u8, pre, "ledbh3", gpio3, 0xff, fb); 222 223 ENTRY(0x0000070e, u16, pre, "pa0b0", pa0b0, 0, fb); 224 ENTRY(0x0000070e, u16, pre, "pa0b1", pa0b1, 0, fb); 225 ENTRY(0x0000070e, u16, pre, "pa0b2", pa0b2, 0, fb); 226 ENTRY(0x0000070e, u8, pre, "pa0itssit", itssi_bg, 0, fb); 227 ENTRY(0x0000070e, u8, pre, "pa0maxpwr", maxpwr_bg, 0, fb); 228 229 ENTRY(0x0000070c, u8, pre, "opo", opo, 0, fb); 230 ENTRY(0xfffffffe, u8, pre, "aa2g", ant_available_bg, 0, fb); 231 ENTRY(0xfffffffe, u8, pre, "aa5g", ant_available_a, 0, fb); 232 ENTRY(0x000007fe, s8, pre, "ag0", antenna_gain.a0, 0, fb); 233 ENTRY(0x000007fe, s8, pre, "ag1", antenna_gain.a1, 0, fb); 234 ENTRY(0x000007f0, s8, pre, "ag2", antenna_gain.a2, 0, fb); 235 ENTRY(0x000007f0, s8, pre, "ag3", antenna_gain.a3, 0, fb); 236 237 ENTRY(0x0000070e, u16, pre, "pa1b0", pa1b0, 0, fb); 238 ENTRY(0x0000070e, u16, pre, "pa1b1", pa1b1, 0, fb); 239 ENTRY(0x0000070e, u16, pre, "pa1b2", pa1b2, 0, fb); 240 ENTRY(0x0000070c, u16, pre, "pa1lob0", pa1lob0, 0, fb); 241 ENTRY(0x0000070c, u16, pre, "pa1lob1", pa1lob1, 0, fb); 242 ENTRY(0x0000070c, u16, pre, "pa1lob2", pa1lob2, 0, fb); 243 ENTRY(0x0000070c, u16, pre, "pa1hib0", pa1hib0, 0, fb); 244 ENTRY(0x0000070c, u16, pre, "pa1hib1", pa1hib1, 0, fb); 245 ENTRY(0x0000070c, u16, pre, "pa1hib2", pa1hib2, 0, fb); 246 ENTRY(0x0000070e, u8, pre, "pa1itssit", itssi_a, 0, fb); 247 ENTRY(0x0000070e, u8, pre, "pa1maxpwr", maxpwr_a, 0, fb); 248 ENTRY(0x0000070c, u8, pre, "pa1lomaxpwr", maxpwr_al, 0, fb); 249 ENTRY(0x0000070c, u8, pre, "pa1himaxpwr", maxpwr_ah, 0, fb); 250 251 ENTRY(0x00000708, u8, pre, "bxa2g", bxa2g, 0, fb); 252 ENTRY(0x00000708, u8, pre, "rssisav2g", rssisav2g, 0, fb); 253 ENTRY(0x00000708, u8, pre, "rssismc2g", rssismc2g, 0, fb); 254 ENTRY(0x00000708, u8, pre, "rssismf2g", rssismf2g, 0, fb); 255 ENTRY(0x00000708, u8, pre, "bxa5g", bxa5g, 0, fb); 256 ENTRY(0x00000708, u8, pre, "rssisav5g", rssisav5g, 0, fb); 257 ENTRY(0x00000708, u8, pre, "rssismc5g", rssismc5g, 0, fb); 258 ENTRY(0x00000708, u8, pre, "rssismf5g", rssismf5g, 0, fb); 259 ENTRY(0x00000708, u8, pre, "tri2g", tri2g, 0, fb); 260 ENTRY(0x00000708, u8, pre, "tri5g", tri5g, 0, fb); 261 ENTRY(0x00000708, u8, pre, "tri5gl", tri5gl, 0, fb); 262 ENTRY(0x00000708, u8, pre, "tri5gh", tri5gh, 0, fb); 263 ENTRY(0x00000708, s8, pre, "rxpo2g", rxpo2g, 0, fb); 264 ENTRY(0x00000708, s8, pre, "rxpo5g", rxpo5g, 0, fb); 265 ENTRY(0xfffffff0, u8, pre, "txchain", txchain, 0xf, fb); 266 ENTRY(0xfffffff0, u8, pre, "rxchain", rxchain, 0xf, fb); 267 ENTRY(0xfffffff0, u8, pre, "antswitch", antswitch, 0xff, fb); 268 ENTRY(0x00000700, u8, pre, "tssipos2g", fem.ghz2.tssipos, 0, fb); 269 ENTRY(0x00000700, u8, pre, "extpagain2g", fem.ghz2.extpa_gain, 0, fb); 270 ENTRY(0x00000700, u8, pre, "pdetrange2g", fem.ghz2.pdet_range, 0, fb); 271 ENTRY(0x00000700, u8, pre, "triso2g", fem.ghz2.tr_iso, 0, fb); 272 ENTRY(0x00000700, u8, pre, "antswctl2g", fem.ghz2.antswlut, 0, fb); 273 ENTRY(0x00000700, u8, pre, "tssipos5g", fem.ghz5.tssipos, 0, fb); 274 ENTRY(0x00000700, u8, pre, "extpagain5g", fem.ghz5.extpa_gain, 0, fb); 275 ENTRY(0x00000700, u8, pre, "pdetrange5g", fem.ghz5.pdet_range, 0, fb); 276 ENTRY(0x00000700, u8, pre, "triso5g", fem.ghz5.tr_iso, 0, fb); 277 ENTRY(0x00000700, u8, pre, "antswctl5g", fem.ghz5.antswlut, 0, fb); 278 ENTRY(0x000000f0, u8, pre, "txpid2ga0", txpid2g[0], 0, fb); 279 ENTRY(0x000000f0, u8, pre, "txpid2ga1", txpid2g[1], 0, fb); 280 ENTRY(0x000000f0, u8, pre, "txpid2ga2", txpid2g[2], 0, fb); 281 ENTRY(0x000000f0, u8, pre, "txpid2ga3", txpid2g[3], 0, fb); 282 ENTRY(0x000000f0, u8, pre, "txpid5ga0", txpid5g[0], 0, fb); 283 ENTRY(0x000000f0, u8, pre, "txpid5ga1", txpid5g[1], 0, fb); 284 ENTRY(0x000000f0, u8, pre, "txpid5ga2", txpid5g[2], 0, fb); 285 ENTRY(0x000000f0, u8, pre, "txpid5ga3", txpid5g[3], 0, fb); 286 ENTRY(0x000000f0, u8, pre, "txpid5gla0", txpid5gl[0], 0, fb); 287 ENTRY(0x000000f0, u8, pre, "txpid5gla1", txpid5gl[1], 0, fb); 288 ENTRY(0x000000f0, u8, pre, "txpid5gla2", txpid5gl[2], 0, fb); 289 ENTRY(0x000000f0, u8, pre, "txpid5gla3", txpid5gl[3], 0, fb); 290 ENTRY(0x000000f0, u8, pre, "txpid5gha0", txpid5gh[0], 0, fb); 291 ENTRY(0x000000f0, u8, pre, "txpid5gha1", txpid5gh[1], 0, fb); 292 ENTRY(0x000000f0, u8, pre, "txpid5gha2", txpid5gh[2], 0, fb); 293 ENTRY(0x000000f0, u8, pre, "txpid5gha3", txpid5gh[3], 0, fb); 294 295 ENTRY(0xffffff00, u8, pre, "tempthresh", tempthresh, 0, fb); 296 ENTRY(0xffffff00, u8, pre, "tempoffset", tempoffset, 0, fb); 297 ENTRY(0xffffff00, u16, pre, "rawtempsense", rawtempsense, 0, fb); 298 ENTRY(0xffffff00, u8, pre, "measpower", measpower, 0, fb); 299 ENTRY(0xffffff00, u8, pre, "tempsense_slope", tempsense_slope, 0, fb); 300 ENTRY(0xffffff00, u8, pre, "tempcorrx", tempcorrx, 0, fb); 301 ENTRY(0xffffff00, u8, pre, "tempsense_option", tempsense_option, 0, fb); 302 ENTRY(0x00000700, u8, pre, "freqoffset_corr", freqoffset_corr, 0, fb); 303 ENTRY(0x00000700, u8, pre, "iqcal_swp_dis", iqcal_swp_dis, 0, fb); 304 ENTRY(0x00000700, u8, pre, "hw_iqcal_en", hw_iqcal_en, 0, fb); 305 ENTRY(0x00000700, u8, pre, "elna2g", elna2g, 0, fb); 306 ENTRY(0x00000700, u8, pre, "elna5g", elna5g, 0, fb); 307 ENTRY(0xffffff00, u8, pre, "phycal_tempdelta", phycal_tempdelta, 0, fb); 308 ENTRY(0xffffff00, u8, pre, "temps_period", temps_period, 0, fb); 309 ENTRY(0xffffff00, u8, pre, "temps_hysteresis", temps_hysteresis, 0, fb); 310 ENTRY(0xffffff00, u8, pre, "measpower1", measpower1, 0, fb); 311 ENTRY(0xffffff00, u8, pre, "measpower2", measpower2, 0, fb); 312 313 ENTRY(0x000001f0, u16, pre, "cck2gpo", cck2gpo, 0, fb); 314 ENTRY(0x000001f0, u32, pre, "ofdm2gpo", ofdm2gpo, 0, fb); 315 ENTRY(0x000001f0, u32, pre, "ofdm5gpo", ofdm5gpo, 0, fb); 316 ENTRY(0x000001f0, u32, pre, "ofdm5glpo", ofdm5glpo, 0, fb); 317 ENTRY(0x000001f0, u32, pre, "ofdm5ghpo", ofdm5ghpo, 0, fb); 318 ENTRY(0x000001f0, u16, pre, "mcs2gpo0", mcs2gpo[0], 0, fb); 319 ENTRY(0x000001f0, u16, pre, "mcs2gpo1", mcs2gpo[1], 0, fb); 320 ENTRY(0x000001f0, u16, pre, "mcs2gpo2", mcs2gpo[2], 0, fb); 321 ENTRY(0x000001f0, u16, pre, "mcs2gpo3", mcs2gpo[3], 0, fb); 322 ENTRY(0x000001f0, u16, pre, "mcs2gpo4", mcs2gpo[4], 0, fb); 323 ENTRY(0x000001f0, u16, pre, "mcs2gpo5", mcs2gpo[5], 0, fb); 324 ENTRY(0x000001f0, u16, pre, "mcs2gpo6", mcs2gpo[6], 0, fb); 325 ENTRY(0x000001f0, u16, pre, "mcs2gpo7", mcs2gpo[7], 0, fb); 326 ENTRY(0x000001f0, u16, pre, "mcs5gpo0", mcs5gpo[0], 0, fb); 327 ENTRY(0x000001f0, u16, pre, "mcs5gpo1", mcs5gpo[1], 0, fb); 328 ENTRY(0x000001f0, u16, pre, "mcs5gpo2", mcs5gpo[2], 0, fb); 329 ENTRY(0x000001f0, u16, pre, "mcs5gpo3", mcs5gpo[3], 0, fb); 330 ENTRY(0x000001f0, u16, pre, "mcs5gpo4", mcs5gpo[4], 0, fb); 331 ENTRY(0x000001f0, u16, pre, "mcs5gpo5", mcs5gpo[5], 0, fb); 332 ENTRY(0x000001f0, u16, pre, "mcs5gpo6", mcs5gpo[6], 0, fb); 333 ENTRY(0x000001f0, u16, pre, "mcs5gpo7", mcs5gpo[7], 0, fb); 334 ENTRY(0x000001f0, u16, pre, "mcs5glpo0", mcs5glpo[0], 0, fb); 335 ENTRY(0x000001f0, u16, pre, "mcs5glpo1", mcs5glpo[1], 0, fb); 336 ENTRY(0x000001f0, u16, pre, "mcs5glpo2", mcs5glpo[2], 0, fb); 337 ENTRY(0x000001f0, u16, pre, "mcs5glpo3", mcs5glpo[3], 0, fb); 338 ENTRY(0x000001f0, u16, pre, "mcs5glpo4", mcs5glpo[4], 0, fb); 339 ENTRY(0x000001f0, u16, pre, "mcs5glpo5", mcs5glpo[5], 0, fb); 340 ENTRY(0x000001f0, u16, pre, "mcs5glpo6", mcs5glpo[6], 0, fb); 341 ENTRY(0x000001f0, u16, pre, "mcs5glpo7", mcs5glpo[7], 0, fb); 342 ENTRY(0x000001f0, u16, pre, "mcs5ghpo0", mcs5ghpo[0], 0, fb); 343 ENTRY(0x000001f0, u16, pre, "mcs5ghpo1", mcs5ghpo[1], 0, fb); 344 ENTRY(0x000001f0, u16, pre, "mcs5ghpo2", mcs5ghpo[2], 0, fb); 345 ENTRY(0x000001f0, u16, pre, "mcs5ghpo3", mcs5ghpo[3], 0, fb); 346 ENTRY(0x000001f0, u16, pre, "mcs5ghpo4", mcs5ghpo[4], 0, fb); 347 ENTRY(0x000001f0, u16, pre, "mcs5ghpo5", mcs5ghpo[5], 0, fb); 348 ENTRY(0x000001f0, u16, pre, "mcs5ghpo6", mcs5ghpo[6], 0, fb); 349 ENTRY(0x000001f0, u16, pre, "mcs5ghpo7", mcs5ghpo[7], 0, fb); 350 ENTRY(0x000001f0, u16, pre, "cddpo", cddpo, 0, fb); 351 ENTRY(0x000001f0, u16, pre, "stbcpo", stbcpo, 0, fb); 352 ENTRY(0x000001f0, u16, pre, "bw40po", bw40po, 0, fb); 353 ENTRY(0x000001f0, u16, pre, "bwduppo", bwduppo, 0, fb); 354 355 ENTRY(0xfffffe00, u16, pre, "cckbw202gpo", cckbw202gpo, 0, fb); 356 ENTRY(0xfffffe00, u16, pre, "cckbw20ul2gpo", cckbw20ul2gpo, 0, fb); 357 ENTRY(0x00000600, u32, pre, "legofdmbw202gpo", legofdmbw202gpo, 0, fb); 358 ENTRY(0x00000600, u32, pre, "legofdmbw20ul2gpo", legofdmbw20ul2gpo, 0, fb); 359 ENTRY(0x00000600, u32, pre, "legofdmbw205glpo", legofdmbw205glpo, 0, fb); 360 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5glpo", legofdmbw20ul5glpo, 0, fb); 361 ENTRY(0x00000600, u32, pre, "legofdmbw205gmpo", legofdmbw205gmpo, 0, fb); 362 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5gmpo", legofdmbw20ul5gmpo, 0, fb); 363 ENTRY(0x00000600, u32, pre, "legofdmbw205ghpo", legofdmbw205ghpo, 0, fb); 364 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5ghpo", legofdmbw20ul5ghpo, 0, fb); 365 ENTRY(0xfffffe00, u32, pre, "mcsbw202gpo", mcsbw202gpo, 0, fb); 366 ENTRY(0x00000600, u32, pre, "mcsbw20ul2gpo", mcsbw20ul2gpo, 0, fb); 367 ENTRY(0xfffffe00, u32, pre, "mcsbw402gpo", mcsbw402gpo, 0, fb); 368 ENTRY(0xfffffe00, u32, pre, "mcsbw205glpo", mcsbw205glpo, 0, fb); 369 ENTRY(0x00000600, u32, pre, "mcsbw20ul5glpo", mcsbw20ul5glpo, 0, fb); 370 ENTRY(0xfffffe00, u32, pre, "mcsbw405glpo", mcsbw405glpo, 0, fb); 371 ENTRY(0xfffffe00, u32, pre, "mcsbw205gmpo", mcsbw205gmpo, 0, fb); 372 ENTRY(0x00000600, u32, pre, "mcsbw20ul5gmpo", mcsbw20ul5gmpo, 0, fb); 373 ENTRY(0xfffffe00, u32, pre, "mcsbw405gmpo", mcsbw405gmpo, 0, fb); 374 ENTRY(0xfffffe00, u32, pre, "mcsbw205ghpo", mcsbw205ghpo, 0, fb); 375 ENTRY(0x00000600, u32, pre, "mcsbw20ul5ghpo", mcsbw20ul5ghpo, 0, fb); 376 ENTRY(0xfffffe00, u32, pre, "mcsbw405ghpo", mcsbw405ghpo, 0, fb); 377 ENTRY(0x00000600, u16, pre, "mcs32po", mcs32po, 0, fb); 378 ENTRY(0x00000600, u16, pre, "legofdm40duppo", legofdm40duppo, 0, fb); 379 ENTRY(0x00000700, u8, pre, "pcieingress_war", pcieingress_war, 0, fb); 380 381 /* TODO: rev 11 support */ 382 ENTRY(0x00000700, u8, pre, "rxgainerr2ga0", rxgainerr2ga[0], 0, fb); 383 ENTRY(0x00000700, u8, pre, "rxgainerr2ga1", rxgainerr2ga[1], 0, fb); 384 ENTRY(0x00000700, u8, pre, "rxgainerr2ga2", rxgainerr2ga[2], 0, fb); 385 ENTRY(0x00000700, u8, pre, "rxgainerr5gla0", rxgainerr5gla[0], 0, fb); 386 ENTRY(0x00000700, u8, pre, "rxgainerr5gla1", rxgainerr5gla[1], 0, fb); 387 ENTRY(0x00000700, u8, pre, "rxgainerr5gla2", rxgainerr5gla[2], 0, fb); 388 ENTRY(0x00000700, u8, pre, "rxgainerr5gma0", rxgainerr5gma[0], 0, fb); 389 ENTRY(0x00000700, u8, pre, "rxgainerr5gma1", rxgainerr5gma[1], 0, fb); 390 ENTRY(0x00000700, u8, pre, "rxgainerr5gma2", rxgainerr5gma[2], 0, fb); 391 ENTRY(0x00000700, u8, pre, "rxgainerr5gha0", rxgainerr5gha[0], 0, fb); 392 ENTRY(0x00000700, u8, pre, "rxgainerr5gha1", rxgainerr5gha[1], 0, fb); 393 ENTRY(0x00000700, u8, pre, "rxgainerr5gha2", rxgainerr5gha[2], 0, fb); 394 ENTRY(0x00000700, u8, pre, "rxgainerr5gua0", rxgainerr5gua[0], 0, fb); 395 ENTRY(0x00000700, u8, pre, "rxgainerr5gua1", rxgainerr5gua[1], 0, fb); 396 ENTRY(0x00000700, u8, pre, "rxgainerr5gua2", rxgainerr5gua[2], 0, fb); 397 398 ENTRY(0xfffffe00, u8, pre, "sar2g", sar2g, 0, fb); 399 ENTRY(0xfffffe00, u8, pre, "sar5g", sar5g, 0, fb); 400 401 /* TODO: rev 11 support */ 402 ENTRY(0x00000700, u8, pre, "noiselvl2ga0", noiselvl2ga[0], 0, fb); 403 ENTRY(0x00000700, u8, pre, "noiselvl2ga1", noiselvl2ga[1], 0, fb); 404 ENTRY(0x00000700, u8, pre, "noiselvl2ga2", noiselvl2ga[2], 0, fb); 405 ENTRY(0x00000700, u8, pre, "noiselvl5gla0", noiselvl5gla[0], 0, fb); 406 ENTRY(0x00000700, u8, pre, "noiselvl5gla1", noiselvl5gla[1], 0, fb); 407 ENTRY(0x00000700, u8, pre, "noiselvl5gla2", noiselvl5gla[2], 0, fb); 408 ENTRY(0x00000700, u8, pre, "noiselvl5gma0", noiselvl5gma[0], 0, fb); 409 ENTRY(0x00000700, u8, pre, "noiselvl5gma1", noiselvl5gma[1], 0, fb); 410 ENTRY(0x00000700, u8, pre, "noiselvl5gma2", noiselvl5gma[2], 0, fb); 411 ENTRY(0x00000700, u8, pre, "noiselvl5gha0", noiselvl5gha[0], 0, fb); 412 ENTRY(0x00000700, u8, pre, "noiselvl5gha1", noiselvl5gha[1], 0, fb); 413 ENTRY(0x00000700, u8, pre, "noiselvl5gha2", noiselvl5gha[2], 0, fb); 414 ENTRY(0x00000700, u8, pre, "noiselvl5gua0", noiselvl5gua[0], 0, fb); 415 ENTRY(0x00000700, u8, pre, "noiselvl5gua1", noiselvl5gua[1], 0, fb); 416 ENTRY(0x00000700, u8, pre, "noiselvl5gua2", noiselvl5gua[2], 0, fb); 417 } 418 #undef ENTRY /* It's specififc, uses local variable, don't use it (again). */ 419 420 static void bcm47xx_fill_sprom_path_r4589(struct ssb_sprom *sprom, 421 const char *prefix, bool fallback) 422 { 423 char postfix[2]; 424 int i; 425 426 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) { 427 struct ssb_sprom_core_pwr_info *pwr_info; 428 429 pwr_info = &sprom->core_pwr_info[i]; 430 431 snprintf(postfix, sizeof(postfix), "%i", i); 432 nvram_read_u8(prefix, postfix, "maxp2ga", 433 &pwr_info->maxpwr_2g, 0, fallback); 434 nvram_read_u8(prefix, postfix, "itt2ga", 435 &pwr_info->itssi_2g, 0, fallback); 436 nvram_read_u8(prefix, postfix, "itt5ga", 437 &pwr_info->itssi_5g, 0, fallback); 438 nvram_read_u16(prefix, postfix, "pa2gw0a", 439 &pwr_info->pa_2g[0], 0, fallback); 440 nvram_read_u16(prefix, postfix, "pa2gw1a", 441 &pwr_info->pa_2g[1], 0, fallback); 442 nvram_read_u16(prefix, postfix, "pa2gw2a", 443 &pwr_info->pa_2g[2], 0, fallback); 444 nvram_read_u8(prefix, postfix, "maxp5ga", 445 &pwr_info->maxpwr_5g, 0, fallback); 446 nvram_read_u8(prefix, postfix, "maxp5gha", 447 &pwr_info->maxpwr_5gh, 0, fallback); 448 nvram_read_u8(prefix, postfix, "maxp5gla", 449 &pwr_info->maxpwr_5gl, 0, fallback); 450 nvram_read_u16(prefix, postfix, "pa5gw0a", 451 &pwr_info->pa_5g[0], 0, fallback); 452 nvram_read_u16(prefix, postfix, "pa5gw1a", 453 &pwr_info->pa_5g[1], 0, fallback); 454 nvram_read_u16(prefix, postfix, "pa5gw2a", 455 &pwr_info->pa_5g[2], 0, fallback); 456 nvram_read_u16(prefix, postfix, "pa5glw0a", 457 &pwr_info->pa_5gl[0], 0, fallback); 458 nvram_read_u16(prefix, postfix, "pa5glw1a", 459 &pwr_info->pa_5gl[1], 0, fallback); 460 nvram_read_u16(prefix, postfix, "pa5glw2a", 461 &pwr_info->pa_5gl[2], 0, fallback); 462 nvram_read_u16(prefix, postfix, "pa5ghw0a", 463 &pwr_info->pa_5gh[0], 0, fallback); 464 nvram_read_u16(prefix, postfix, "pa5ghw1a", 465 &pwr_info->pa_5gh[1], 0, fallback); 466 nvram_read_u16(prefix, postfix, "pa5ghw2a", 467 &pwr_info->pa_5gh[2], 0, fallback); 468 } 469 } 470 471 static void bcm47xx_fill_sprom_path_r45(struct ssb_sprom *sprom, 472 const char *prefix, bool fallback) 473 { 474 char postfix[2]; 475 int i; 476 477 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) { 478 struct ssb_sprom_core_pwr_info *pwr_info; 479 480 pwr_info = &sprom->core_pwr_info[i]; 481 482 snprintf(postfix, sizeof(postfix), "%i", i); 483 nvram_read_u16(prefix, postfix, "pa2gw3a", 484 &pwr_info->pa_2g[3], 0, fallback); 485 nvram_read_u16(prefix, postfix, "pa5gw3a", 486 &pwr_info->pa_5g[3], 0, fallback); 487 nvram_read_u16(prefix, postfix, "pa5glw3a", 488 &pwr_info->pa_5gl[3], 0, fallback); 489 nvram_read_u16(prefix, postfix, "pa5ghw3a", 490 &pwr_info->pa_5gh[3], 0, fallback); 491 } 492 } 493 494 static bool bcm47xx_is_valid_mac(u8 *mac) 495 { 496 return mac && !(mac[0] == 0x00 && mac[1] == 0x90 && mac[2] == 0x4c); 497 } 498 499 static int bcm47xx_increase_mac_addr(u8 *mac, u8 num) 500 { 501 u8 *oui = mac + ETH_ALEN/2 - 1; 502 u8 *p = mac + ETH_ALEN - 1; 503 504 do { 505 (*p) += num; 506 if (*p > num) 507 break; 508 p--; 509 num = 1; 510 } while (p != oui); 511 512 if (p == oui) { 513 pr_err("unable to fetch mac address\n"); 514 return -ENOENT; 515 } 516 return 0; 517 } 518 519 static int mac_addr_used = 2; 520 521 static void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom, 522 const char *prefix, bool fallback) 523 { 524 bool fb = fallback; 525 526 nvram_read_macaddr(prefix, "et0macaddr", sprom->et0mac, fallback); 527 nvram_read_u8(prefix, NULL, "et0mdcport", &sprom->et0mdcport, 0, 528 fallback); 529 nvram_read_u8(prefix, NULL, "et0phyaddr", &sprom->et0phyaddr, 0, 530 fallback); 531 532 nvram_read_macaddr(prefix, "et1macaddr", sprom->et1mac, fallback); 533 nvram_read_u8(prefix, NULL, "et1mdcport", &sprom->et1mdcport, 0, 534 fallback); 535 nvram_read_u8(prefix, NULL, "et1phyaddr", &sprom->et1phyaddr, 0, 536 fallback); 537 538 nvram_read_macaddr(prefix, "et2macaddr", sprom->et2mac, fb); 539 nvram_read_u8(prefix, NULL, "et2mdcport", &sprom->et2mdcport, 0, fb); 540 nvram_read_u8(prefix, NULL, "et2phyaddr", &sprom->et2phyaddr, 0, fb); 541 542 nvram_read_macaddr(prefix, "macaddr", sprom->il0mac, fallback); 543 nvram_read_macaddr(prefix, "il0macaddr", sprom->il0mac, fallback); 544 545 /* The address prefix 00:90:4C is used by Broadcom in their initial 546 * configuration. When a mac address with the prefix 00:90:4C is used 547 * all devices from the same series are sharing the same mac address. 548 * To prevent mac address collisions we replace them with a mac address 549 * based on the base address. 550 */ 551 if (!bcm47xx_is_valid_mac(sprom->il0mac)) { 552 u8 mac[6]; 553 554 nvram_read_macaddr(NULL, "et0macaddr", mac, false); 555 if (bcm47xx_is_valid_mac(mac)) { 556 int err = bcm47xx_increase_mac_addr(mac, mac_addr_used); 557 558 if (!err) { 559 ether_addr_copy(sprom->il0mac, mac); 560 mac_addr_used++; 561 } 562 } 563 } 564 } 565 566 static void bcm47xx_fill_board_data(struct ssb_sprom *sprom, const char *prefix, 567 bool fallback) 568 { 569 nvram_read_u32_2(prefix, "boardflags", &sprom->boardflags_lo, 570 &sprom->boardflags_hi, fallback); 571 nvram_read_u32_2(prefix, "boardflags2", &sprom->boardflags2_lo, 572 &sprom->boardflags2_hi, fallback); 573 } 574 575 void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix, 576 bool fallback) 577 { 578 bcm47xx_fill_sprom_ethernet(sprom, prefix, fallback); 579 bcm47xx_fill_board_data(sprom, prefix, fallback); 580 581 nvram_read_u8(prefix, NULL, "sromrev", &sprom->revision, 0, fallback); 582 583 /* Entries requiring custom functions */ 584 nvram_read_alpha2(prefix, "ccode", sprom->alpha2, fallback); 585 if (sprom->revision >= 3) 586 nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time, 587 &sprom->leddc_off_time, fallback); 588 589 switch (sprom->revision) { 590 case 4: 591 case 5: 592 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback); 593 bcm47xx_fill_sprom_path_r45(sprom, prefix, fallback); 594 break; 595 case 8: 596 case 9: 597 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback); 598 break; 599 } 600 601 bcm47xx_sprom_fill_auto(sprom, prefix, fallback); 602 } 603 604 #if IS_BUILTIN(CONFIG_SSB) && IS_ENABLED(CONFIG_SSB_SPROM) 605 static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out) 606 { 607 char prefix[10]; 608 609 switch (bus->bustype) { 610 case SSB_BUSTYPE_SSB: 611 bcm47xx_fill_sprom(out, NULL, false); 612 return 0; 613 case SSB_BUSTYPE_PCI: 614 memset(out, 0, sizeof(struct ssb_sprom)); 615 snprintf(prefix, sizeof(prefix), "pci/%u/%u/", 616 bus->host_pci->bus->number + 1, 617 PCI_SLOT(bus->host_pci->devfn)); 618 bcm47xx_fill_sprom(out, prefix, false); 619 return 0; 620 default: 621 pr_warn("Unable to fill SPROM for given bustype.\n"); 622 return -EINVAL; 623 } 624 } 625 #endif 626 627 #if IS_BUILTIN(CONFIG_BCMA) 628 /* 629 * Having many NVRAM entries for PCI devices led to repeating prefixes like 630 * pci/1/1/ all the time and wasting flash space. So at some point Broadcom 631 * decided to introduce prefixes like 0: 1: 2: etc. 632 * If we find e.g. devpath0=pci/2/1 or devpath0=pci/2/1/ we should use 0: 633 * instead of pci/2/1/. 634 */ 635 static void bcm47xx_sprom_apply_prefix_alias(char *prefix, size_t prefix_size) 636 { 637 size_t prefix_len = strlen(prefix); 638 size_t short_len = prefix_len - 1; 639 char nvram_var[10]; 640 char buf[20]; 641 int i; 642 643 /* Passed prefix has to end with a slash */ 644 if (prefix_len <= 0 || prefix[prefix_len - 1] != '/') 645 return; 646 647 for (i = 0; i < 3; i++) { 648 if (snprintf(nvram_var, sizeof(nvram_var), "devpath%d", i) <= 0) 649 continue; 650 if (bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf)) < 0) 651 continue; 652 if (!strcmp(buf, prefix) || 653 (short_len && strlen(buf) == short_len && !strncmp(buf, prefix, short_len))) { 654 snprintf(prefix, prefix_size, "%d:", i); 655 return; 656 } 657 } 658 } 659 660 static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out) 661 { 662 struct bcma_boardinfo *binfo = &bus->boardinfo; 663 struct bcma_device *core; 664 char buf[10]; 665 char *prefix; 666 bool fallback = false; 667 668 switch (bus->hosttype) { 669 case BCMA_HOSTTYPE_PCI: 670 memset(out, 0, sizeof(struct ssb_sprom)); 671 /* On BCM47XX all PCI buses share the same domain */ 672 if (config_enabled(CONFIG_BCM47XX)) 673 snprintf(buf, sizeof(buf), "pci/%u/%u/", 674 bus->host_pci->bus->number + 1, 675 PCI_SLOT(bus->host_pci->devfn)); 676 else 677 snprintf(buf, sizeof(buf), "pci/%u/%u/", 678 pci_domain_nr(bus->host_pci->bus) + 1, 679 bus->host_pci->bus->number); 680 bcm47xx_sprom_apply_prefix_alias(buf, sizeof(buf)); 681 prefix = buf; 682 break; 683 case BCMA_HOSTTYPE_SOC: 684 memset(out, 0, sizeof(struct ssb_sprom)); 685 core = bcma_find_core(bus, BCMA_CORE_80211); 686 if (core) { 687 snprintf(buf, sizeof(buf), "sb/%u/", 688 core->core_index); 689 prefix = buf; 690 fallback = true; 691 } else { 692 prefix = NULL; 693 } 694 break; 695 default: 696 pr_warn("Unable to fill SPROM for given bustype.\n"); 697 return -EINVAL; 698 } 699 700 nvram_read_u16(prefix, NULL, "boardvendor", &binfo->vendor, 0, true); 701 if (!binfo->vendor) 702 binfo->vendor = SSB_BOARDVENDOR_BCM; 703 nvram_read_u16(prefix, NULL, "boardtype", &binfo->type, 0, true); 704 705 bcm47xx_fill_sprom(out, prefix, fallback); 706 707 return 0; 708 } 709 #endif 710 711 static unsigned int bcm47xx_sprom_registered; 712 713 /* 714 * On bcm47xx we need to register SPROM fallback handler very early, so we can't 715 * use anything like platform device / driver for this. 716 */ 717 int bcm47xx_sprom_register_fallbacks(void) 718 { 719 if (bcm47xx_sprom_registered) 720 return 0; 721 722 #if IS_BUILTIN(CONFIG_SSB) && IS_ENABLED(CONFIG_SSB_SPROM) 723 if (ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb)) 724 pr_warn("Failed to register ssb SPROM handler\n"); 725 #endif 726 727 #if IS_BUILTIN(CONFIG_BCMA) 728 if (bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma)) 729 pr_warn("Failed to register bcma SPROM handler\n"); 730 #endif 731 732 bcm47xx_sprom_registered = 1; 733 734 return 0; 735 } 736 737 fs_initcall(bcm47xx_sprom_register_fallbacks); 738