David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 1 | /***********************license start*************** |
| 2 | * Author: Cavium Networks |
| 3 | * |
| 4 | * Contact: support@caviumnetworks.com |
| 5 | * This file is part of the OCTEON SDK |
| 6 | * |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 7 | * Copyright (c) 2003-2010 Cavium Networks |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 8 | * |
| 9 | * This file is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License, Version 2, as |
| 11 | * published by the Free Software Foundation. |
| 12 | * |
| 13 | * This file is distributed in the hope that it will be useful, but |
| 14 | * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty |
| 15 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or |
| 16 | * NONINFRINGEMENT. See the GNU General Public License for more |
| 17 | * details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this file; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | * or visit http://www.gnu.org/licenses/. |
| 23 | * |
| 24 | * This file may also be available under a different license from Cavium. |
| 25 | * Contact Cavium Networks for more information |
| 26 | ***********************license end**************************************/ |
| 27 | |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 28 | #include <asm/octeon/octeon.h> |
| 29 | |
| 30 | /** |
Aaro Koskinen | 0f24017 | 2014-09-08 18:25:40 +0300 | [diff] [blame] | 31 | * Read a byte of fuse data |
| 32 | * @byte_addr: address to read |
| 33 | * |
| 34 | * Returns fuse value: 0 or 1 |
| 35 | */ |
Aaro Koskinen | da85e364 | 2014-09-08 18:25:43 +0300 | [diff] [blame] | 36 | static uint8_t __init cvmx_fuse_read_byte(int byte_addr) |
Aaro Koskinen | 0f24017 | 2014-09-08 18:25:40 +0300 | [diff] [blame] | 37 | { |
| 38 | union cvmx_mio_fus_rcmd read_cmd; |
| 39 | |
| 40 | read_cmd.u64 = 0; |
| 41 | read_cmd.s.addr = byte_addr; |
| 42 | read_cmd.s.pend = 1; |
| 43 | cvmx_write_csr(CVMX_MIO_FUS_RCMD, read_cmd.u64); |
| 44 | while ((read_cmd.u64 = cvmx_read_csr(CVMX_MIO_FUS_RCMD)) |
| 45 | && read_cmd.s.pend) |
| 46 | ; |
| 47 | return read_cmd.s.dat; |
| 48 | } |
| 49 | |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 50 | /* |
| 51 | * Version of octeon_model_get_string() that takes buffer as argument, |
| 52 | * as running early in u-boot static/global variables don't work when |
| 53 | * running from flash. |
| 54 | */ |
Aaro Koskinen | da85e364 | 2014-09-08 18:25:43 +0300 | [diff] [blame] | 55 | static const char *__init octeon_model_get_string_buffer(uint32_t chip_id, |
| 56 | char *buffer) |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 57 | { |
| 58 | const char *family; |
| 59 | const char *core_model; |
| 60 | char pass[4]; |
| 61 | int clock_mhz; |
| 62 | const char *suffix; |
| 63 | union cvmx_l2d_fus3 fus3; |
| 64 | int num_cores; |
| 65 | union cvmx_mio_fus_dat2 fus_dat2; |
| 66 | union cvmx_mio_fus_dat3 fus_dat3; |
| 67 | char fuse_model[10]; |
| 68 | uint32_t fuse_data = 0; |
| 69 | |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 70 | fus3.u64 = 0; |
| 71 | if (!OCTEON_IS_MODEL(OCTEON_CN6XXX)) |
| 72 | fus3.u64 = cvmx_read_csr(CVMX_L2D_FUS3); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 73 | fus_dat2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2); |
| 74 | fus_dat3.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT3); |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 75 | num_cores = cvmx_pop(cvmx_read_csr(CVMX_CIU_FUSE)); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 76 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 77 | /* Make sure the non existent devices look disabled */ |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 78 | switch ((chip_id >> 8) & 0xff) { |
| 79 | case 6: /* CN50XX */ |
| 80 | case 2: /* CN30XX */ |
| 81 | fus_dat3.s.nodfa_dte = 1; |
| 82 | fus_dat3.s.nozip = 1; |
| 83 | break; |
| 84 | case 4: /* CN57XX or CN56XX */ |
| 85 | fus_dat3.s.nodfa_dte = 1; |
| 86 | break; |
| 87 | default: |
| 88 | break; |
| 89 | } |
| 90 | |
| 91 | /* Make a guess at the suffix */ |
| 92 | /* NSP = everything */ |
| 93 | /* EXP = No crypto */ |
| 94 | /* SCP = No DFA, No zip */ |
| 95 | /* CP = No DFA, No crypto, No zip */ |
| 96 | if (fus_dat3.s.nodfa_dte) { |
| 97 | if (fus_dat2.s.nocrypto) |
| 98 | suffix = "CP"; |
| 99 | else |
| 100 | suffix = "SCP"; |
| 101 | } else if (fus_dat2.s.nocrypto) |
| 102 | suffix = "EXP"; |
| 103 | else |
| 104 | suffix = "NSP"; |
| 105 | |
| 106 | /* |
| 107 | * Assume pass number is encoded using <5:3><2:0>. Exceptions |
| 108 | * will be fixed later. |
| 109 | */ |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 110 | sprintf(pass, "%d.%d", (int)((chip_id >> 3) & 7) + 1, (int)chip_id & 7); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 111 | |
| 112 | /* |
| 113 | * Use the number of cores to determine the last 2 digits of |
| 114 | * the model number. There are some exceptions that are fixed |
| 115 | * later. |
| 116 | */ |
| 117 | switch (num_cores) { |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 118 | case 32: |
| 119 | core_model = "80"; |
| 120 | break; |
| 121 | case 24: |
| 122 | core_model = "70"; |
| 123 | break; |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 124 | case 16: |
| 125 | core_model = "60"; |
| 126 | break; |
| 127 | case 15: |
| 128 | core_model = "58"; |
| 129 | break; |
| 130 | case 14: |
| 131 | core_model = "55"; |
| 132 | break; |
| 133 | case 13: |
| 134 | core_model = "52"; |
| 135 | break; |
| 136 | case 12: |
| 137 | core_model = "50"; |
| 138 | break; |
| 139 | case 11: |
| 140 | core_model = "48"; |
| 141 | break; |
| 142 | case 10: |
| 143 | core_model = "45"; |
| 144 | break; |
| 145 | case 9: |
| 146 | core_model = "42"; |
| 147 | break; |
| 148 | case 8: |
| 149 | core_model = "40"; |
| 150 | break; |
| 151 | case 7: |
| 152 | core_model = "38"; |
| 153 | break; |
| 154 | case 6: |
| 155 | core_model = "34"; |
| 156 | break; |
| 157 | case 5: |
| 158 | core_model = "32"; |
| 159 | break; |
| 160 | case 4: |
| 161 | core_model = "30"; |
| 162 | break; |
| 163 | case 3: |
| 164 | core_model = "25"; |
| 165 | break; |
| 166 | case 2: |
| 167 | core_model = "20"; |
| 168 | break; |
| 169 | case 1: |
| 170 | core_model = "10"; |
| 171 | break; |
| 172 | default: |
| 173 | core_model = "XX"; |
| 174 | break; |
| 175 | } |
| 176 | |
| 177 | /* Now figure out the family, the first two digits */ |
| 178 | switch ((chip_id >> 8) & 0xff) { |
| 179 | case 0: /* CN38XX, CN37XX or CN36XX */ |
| 180 | if (fus3.cn38xx.crip_512k) { |
| 181 | /* |
| 182 | * For some unknown reason, the 16 core one is |
| 183 | * called 37 instead of 36. |
| 184 | */ |
| 185 | if (num_cores >= 16) |
| 186 | family = "37"; |
| 187 | else |
| 188 | family = "36"; |
| 189 | } else |
| 190 | family = "38"; |
| 191 | /* |
| 192 | * This series of chips didn't follow the standard |
| 193 | * pass numbering. |
| 194 | */ |
| 195 | switch (chip_id & 0xf) { |
| 196 | case 0: |
| 197 | strcpy(pass, "1.X"); |
| 198 | break; |
| 199 | case 1: |
| 200 | strcpy(pass, "2.X"); |
| 201 | break; |
| 202 | case 3: |
| 203 | strcpy(pass, "3.X"); |
| 204 | break; |
| 205 | default: |
| 206 | strcpy(pass, "X.X"); |
| 207 | break; |
| 208 | } |
| 209 | break; |
| 210 | case 1: /* CN31XX or CN3020 */ |
| 211 | if ((chip_id & 0x10) || fus3.cn31xx.crip_128k) |
| 212 | family = "30"; |
| 213 | else |
| 214 | family = "31"; |
| 215 | /* |
| 216 | * This series of chips didn't follow the standard |
| 217 | * pass numbering. |
| 218 | */ |
| 219 | switch (chip_id & 0xf) { |
| 220 | case 0: |
| 221 | strcpy(pass, "1.0"); |
| 222 | break; |
| 223 | case 2: |
| 224 | strcpy(pass, "1.1"); |
| 225 | break; |
| 226 | default: |
| 227 | strcpy(pass, "X.X"); |
| 228 | break; |
| 229 | } |
| 230 | break; |
| 231 | case 2: /* CN3010 or CN3005 */ |
| 232 | family = "30"; |
| 233 | /* A chip with half cache is an 05 */ |
| 234 | if (fus3.cn30xx.crip_64k) |
| 235 | core_model = "05"; |
| 236 | /* |
| 237 | * This series of chips didn't follow the standard |
| 238 | * pass numbering. |
| 239 | */ |
| 240 | switch (chip_id & 0xf) { |
| 241 | case 0: |
| 242 | strcpy(pass, "1.0"); |
| 243 | break; |
| 244 | case 2: |
| 245 | strcpy(pass, "1.1"); |
| 246 | break; |
| 247 | default: |
| 248 | strcpy(pass, "X.X"); |
| 249 | break; |
| 250 | } |
| 251 | break; |
| 252 | case 3: /* CN58XX */ |
| 253 | family = "58"; |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 254 | /* Special case. 4 core, half cache (CP with half cache) */ |
| 255 | if ((num_cores == 4) && fus3.cn58xx.crip_1024k && !strncmp(suffix, "CP", 2)) |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 256 | core_model = "29"; |
| 257 | |
| 258 | /* Pass 1 uses different encodings for pass numbers */ |
| 259 | if ((chip_id & 0xFF) < 0x8) { |
| 260 | switch (chip_id & 0x3) { |
| 261 | case 0: |
| 262 | strcpy(pass, "1.0"); |
| 263 | break; |
| 264 | case 1: |
| 265 | strcpy(pass, "1.1"); |
| 266 | break; |
| 267 | case 3: |
| 268 | strcpy(pass, "1.2"); |
| 269 | break; |
| 270 | default: |
| 271 | strcpy(pass, "1.X"); |
| 272 | break; |
| 273 | } |
| 274 | } |
| 275 | break; |
| 276 | case 4: /* CN57XX, CN56XX, CN55XX, CN54XX */ |
| 277 | if (fus_dat2.cn56xx.raid_en) { |
| 278 | if (fus3.cn56xx.crip_1024k) |
| 279 | family = "55"; |
| 280 | else |
| 281 | family = "57"; |
| 282 | if (fus_dat2.cn56xx.nocrypto) |
| 283 | suffix = "SP"; |
| 284 | else |
| 285 | suffix = "SSP"; |
| 286 | } else { |
| 287 | if (fus_dat2.cn56xx.nocrypto) |
| 288 | suffix = "CP"; |
| 289 | else { |
| 290 | suffix = "NSP"; |
| 291 | if (fus_dat3.s.nozip) |
| 292 | suffix = "SCP"; |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 293 | |
| 294 | if (fus_dat3.s.bar2_en) |
| 295 | suffix = "NSPB2"; |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 296 | } |
| 297 | if (fus3.cn56xx.crip_1024k) |
| 298 | family = "54"; |
| 299 | else |
| 300 | family = "56"; |
| 301 | } |
| 302 | break; |
| 303 | case 6: /* CN50XX */ |
| 304 | family = "50"; |
| 305 | break; |
| 306 | case 7: /* CN52XX */ |
| 307 | if (fus3.cn52xx.crip_256k) |
| 308 | family = "51"; |
| 309 | else |
| 310 | family = "52"; |
| 311 | break; |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 312 | case 0x93: /* CN61XX */ |
| 313 | family = "61"; |
| 314 | if (fus_dat2.cn61xx.nocrypto && fus_dat2.cn61xx.dorm_crypto) |
| 315 | suffix = "AP"; |
| 316 | if (fus_dat2.cn61xx.nocrypto) |
| 317 | suffix = "CP"; |
| 318 | else if (fus_dat2.cn61xx.dorm_crypto) |
| 319 | suffix = "DAP"; |
| 320 | else if (fus_dat3.cn61xx.nozip) |
| 321 | suffix = "SCP"; |
| 322 | break; |
| 323 | case 0x90: /* CN63XX */ |
| 324 | family = "63"; |
| 325 | if (fus_dat3.s.l2c_crip == 2) |
| 326 | family = "62"; |
| 327 | if (num_cores == 6) /* Other core counts match generic */ |
| 328 | core_model = "35"; |
| 329 | if (fus_dat2.cn63xx.nocrypto) |
| 330 | suffix = "CP"; |
| 331 | else if (fus_dat2.cn63xx.dorm_crypto) |
| 332 | suffix = "DAP"; |
| 333 | else if (fus_dat3.cn63xx.nozip) |
| 334 | suffix = "SCP"; |
| 335 | else |
| 336 | suffix = "AAP"; |
| 337 | break; |
| 338 | case 0x92: /* CN66XX */ |
| 339 | family = "66"; |
| 340 | if (num_cores == 6) /* Other core counts match generic */ |
| 341 | core_model = "35"; |
| 342 | if (fus_dat2.cn66xx.nocrypto && fus_dat2.cn66xx.dorm_crypto) |
| 343 | suffix = "AP"; |
| 344 | if (fus_dat2.cn66xx.nocrypto) |
| 345 | suffix = "CP"; |
| 346 | else if (fus_dat2.cn66xx.dorm_crypto) |
| 347 | suffix = "DAP"; |
| 348 | else if (fus_dat3.cn66xx.nozip) |
| 349 | suffix = "SCP"; |
| 350 | else |
| 351 | suffix = "AAP"; |
| 352 | break; |
| 353 | case 0x91: /* CN68XX */ |
| 354 | family = "68"; |
| 355 | if (fus_dat2.cn68xx.nocrypto && fus_dat3.cn68xx.nozip) |
| 356 | suffix = "CP"; |
| 357 | else if (fus_dat2.cn68xx.dorm_crypto) |
| 358 | suffix = "DAP"; |
| 359 | else if (fus_dat3.cn68xx.nozip) |
| 360 | suffix = "SCP"; |
| 361 | else if (fus_dat2.cn68xx.nocrypto) |
| 362 | suffix = "SP"; |
| 363 | else |
| 364 | suffix = "AAP"; |
| 365 | break; |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 366 | default: |
| 367 | family = "XX"; |
| 368 | core_model = "XX"; |
| 369 | strcpy(pass, "X.X"); |
| 370 | suffix = "XXX"; |
| 371 | break; |
| 372 | } |
| 373 | |
| 374 | clock_mhz = octeon_get_clock_rate() / 1000000; |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 375 | if (family[0] != '3') { |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 376 | int fuse_base = 384 / 8; |
| 377 | if (family[0] == '6') |
| 378 | fuse_base = 832 / 8; |
| 379 | |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 380 | /* Check for model in fuses, overrides normal decode */ |
| 381 | /* This is _not_ valid for Octeon CN3XXX models */ |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 382 | fuse_data |= cvmx_fuse_read_byte(fuse_base + 3); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 383 | fuse_data = fuse_data << 8; |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 384 | fuse_data |= cvmx_fuse_read_byte(fuse_base + 2); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 385 | fuse_data = fuse_data << 8; |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 386 | fuse_data |= cvmx_fuse_read_byte(fuse_base + 1); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 387 | fuse_data = fuse_data << 8; |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 388 | fuse_data |= cvmx_fuse_read_byte(fuse_base); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 389 | if (fuse_data & 0x7ffff) { |
| 390 | int model = fuse_data & 0x3fff; |
| 391 | int suffix = (fuse_data >> 14) & 0x1f; |
| 392 | if (suffix && model) { |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 393 | /* Have both number and suffix in fuses, so both */ |
| 394 | sprintf(fuse_model, "%d%c", model, 'A' + suffix - 1); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 395 | core_model = ""; |
| 396 | family = fuse_model; |
| 397 | } else if (suffix && !model) { |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 398 | /* Only have suffix, so add suffix to 'normal' model number */ |
| 399 | sprintf(fuse_model, "%s%c", core_model, 'A' + suffix - 1); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 400 | core_model = fuse_model; |
| 401 | } else { |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 402 | /* Don't have suffix, so just use model from fuses */ |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 403 | sprintf(fuse_model, "%d", model); |
| 404 | core_model = ""; |
| 405 | family = fuse_model; |
| 406 | } |
| 407 | } |
| 408 | } |
David Daney | 751c9f6 | 2011-11-22 14:46:49 +0000 | [diff] [blame] | 409 | sprintf(buffer, "CN%s%sp%s-%d-%s", family, core_model, pass, clock_mhz, suffix); |
David Daney | 58f0777 | 2008-12-23 15:22:14 -0800 | [diff] [blame] | 410 | return buffer; |
| 411 | } |
Aaro Koskinen | 653e052 | 2014-09-08 18:25:42 +0300 | [diff] [blame] | 412 | |
| 413 | /** |
| 414 | * Given the chip processor ID from COP0, this function returns a |
| 415 | * string representing the chip model number. The string is of the |
| 416 | * form CNXXXXpX.X-FREQ-SUFFIX. |
| 417 | * - XXXX = The chip model number |
| 418 | * - X.X = Chip pass number |
| 419 | * - FREQ = Current frequency in Mhz |
| 420 | * - SUFFIX = NSP, EXP, SCP, SSP, or CP |
| 421 | * |
| 422 | * @chip_id: Chip ID |
| 423 | * |
| 424 | * Returns Model string |
| 425 | */ |
Aaro Koskinen | da85e364 | 2014-09-08 18:25:43 +0300 | [diff] [blame] | 426 | const char *__init octeon_model_get_string(uint32_t chip_id) |
Aaro Koskinen | 653e052 | 2014-09-08 18:25:42 +0300 | [diff] [blame] | 427 | { |
| 428 | static char buffer[32]; |
| 429 | return octeon_model_get_string_buffer(chip_id, buffer); |
| 430 | } |