octeon-model.c revision 215990
1/***********************license start*************** 2 * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights 3 * reserved. 4 * 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * * Redistributions in binary form must reproduce the above 14 * copyright notice, this list of conditions and the following 15 * disclaimer in the documentation and/or other materials provided 16 * with the distribution. 17 18 * * Neither the name of Cavium Networks nor the names of 19 * its contributors may be used to endorse or promote products 20 * derived from this software without specific prior written 21 * permission. 22 23 * This Software, including technical data, may be subject to U.S. export control 24 * laws, including the U.S. Export Administration Act and its associated 25 * regulations, and may be subject to export or import regulations in other 26 * countries. 27 28 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 29 * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR 30 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO 31 * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR 32 * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM 33 * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, 34 * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF 35 * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR 36 * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR 37 * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. 38 ***********************license end**************************************/ 39 40 41 42 43 44 45 46/** 47 * @file 48 * 49 * File defining functions for working with different Octeon 50 * models. 51 * 52 * <hr>$Revision: 49922 $<hr> 53 */ 54#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 55#include <asm/octeon/octeon.h> 56#include <asm/octeon/cvmx-clock.h> 57#else 58#include "cvmx.h" 59#include "cvmx-pow.h" 60#include "cvmx-warn.h" 61#endif 62 63#if defined(CVMX_BUILD_FOR_LINUX_USER) || defined(CVMX_BUILD_FOR_STANDALONE) 64#include <octeon-app-init.h> 65#include "cvmx-sysinfo.h" 66 67/** 68 * This function checks to see if the software is compatible with the 69 * chip it is running on. This is called in the application startup code 70 * and does not need to be called directly by the application. 71 * Does not return if software is incompatible. 72 * 73 * @param chip_id chip id that the software is being run on. 74 * 75 * @return 0: runtime checking or exact version match 76 * 1: chip is newer revision than compiled for, but software will run properly. 77 */ 78int octeon_model_version_check(uint32_t chip_id) 79{ 80 //printf("Model Number: %s\n", octeon_model_get_string(chip_id)); 81#if !OCTEON_IS_COMMON_BINARY() 82 /* Check for special case of mismarked 3005 samples, and adjust cpuid */ 83 if (chip_id == OCTEON_CN3010_PASS1 && (cvmx_read_csr(0x80011800800007B8ull) & (1ull << 34))) 84 chip_id |= 0x10; 85 86 if ((OCTEON_MODEL & 0xffffff) != chip_id) 87 { 88 if (!OCTEON_IS_MODEL((OM_IGNORE_REVISION | chip_id)) || (OCTEON_MODEL & 0xffffff) > chip_id || (((OCTEON_MODEL & 0xffffff) ^ chip_id) & 0x10)) 89 { 90 printf("ERROR: Software not configured for this chip\n" 91 " Expecting ID=0x%08x, Chip is 0x%08x\n", (OCTEON_MODEL & 0xffffff), (unsigned int)chip_id); 92 if ((OCTEON_MODEL & 0xffffff) > chip_id) 93 printf("Refusing to run on older revision than program was compiled for.\n"); 94 exit(-1); 95 } 96 else 97 { 98 printf("\n###################################################\n"); 99 printf("WARNING: Software configured for older revision than running on.\n" 100 " Compiled for ID=0x%08x, Chip is 0x%08x\n", (OCTEON_MODEL & 0xffffff), (unsigned int)chip_id); 101 printf("###################################################\n\n"); 102 return(1); 103 } 104 } 105#endif 106 107 cvmx_warn_if(CVMX_ENABLE_PARAMETER_CHECKING, "Parameter checks are enabled. Expect some performance loss due to the extra checking\n"); 108 cvmx_warn_if(CVMX_ENABLE_CSR_ADDRESS_CHECKING, "CSR address checks are enabled. Expect some performance loss due to the extra checking\n"); 109 cvmx_warn_if(CVMX_ENABLE_POW_CHECKS, "POW state checks are enabled. Expect some performance loss due to the extra checking\n"); 110 111 /* Core-14449 errata check. Generate a warning message if application 112 compiled for OcteonPlus/Octeon models are run on Octeon II Pass1 chip */ 113 { 114 uint32_t insn; 115 116 asm volatile ( 117 ".set push\n" \ 118 ".set noreorder\n" \ 119 "pref_errata:\tpref 0,0($zero)\n" \ 120 "lw %0, pref_errata\n" \ 121 ".set pop" : "=r" (insn) : : "memory"); 122 123 if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X) && ((insn >> 16) & 0x1f) != 28) 124 { 125 printf("\n###################################################\n"); 126 printf("WARNING: Application not compiled for cn63xx pass1.x chips, use of\n" 127 " certain prefetch operations can cause dcache corruption.\n"); 128 printf("###################################################\n\n"); 129 return -1; 130 } 131 else if (!OCTEON_IS_MODEL(OCTEON_CN63XX) && ((insn >> 16) & 0x1f) == 28) 132 { 133 printf("\n###################################################\n"); 134 printf("WARNING: Software configured with -mfix-cn63xxp1 (Core-14449 errata), expect some performance loss.\n"); 135 printf("###################################################\n\n"); 136 } 137 } 138 return(0); 139} 140 141#endif 142/** 143 * Given the chip processor ID from COP0, this function returns a 144 * string representing the chip model number. The string is of the 145 * form CNXXXXpX.X-FREQ-SUFFIX. 146 * - XXXX = The chip model number 147 * - X.X = Chip pass number 148 * - FREQ = Current frequency in Mhz 149 * - SUFFIX = NSP, EXP, SCP, SSP, or CP 150 * 151 * @param chip_id Chip ID 152 * 153 * @return Model string 154 */ 155const char *octeon_model_get_string(uint32_t chip_id) 156{ 157 static char buffer[32]; 158 return octeon_model_get_string_buffer(chip_id,buffer); 159} 160 161/* Version of octeon_model_get_string() that takes buffer as argument, as 162** running early in u-boot static/global variables don't work when running from 163** flash 164*/ 165const char *octeon_model_get_string_buffer(uint32_t chip_id, char * buffer) 166{ 167 const char * family; 168 const char * core_model; 169 char pass[4]; 170 int clock_mhz; 171 const char * suffix; 172 cvmx_l2d_fus3_t fus3; 173 int num_cores; 174 cvmx_mio_fus_dat2_t fus_dat2; 175 cvmx_mio_fus_dat3_t fus_dat3; 176 char fuse_model[10]; 177 uint32_t fuse_data = 0; 178 179 if (!OCTEON_IS_MODEL(OCTEON_CN6XXX)) 180 fus3.u64 = cvmx_read_csr(CVMX_L2D_FUS3); 181 fus_dat2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2); 182 fus_dat3.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT3); 183 num_cores = cvmx_pop(cvmx_read_csr(CVMX_CIU_FUSE)); 184 185 /* Make sure the non existant devices look disabled */ 186 switch ((chip_id >> 8) & 0xff) 187 { 188 case 6: /* CN50XX */ 189 case 2: /* CN30XX */ 190 fus_dat3.s.nodfa_dte = 1; 191 fus_dat3.s.nozip = 1; 192 break; 193 case 4: /* CN57XX or CN56XX */ 194 fus_dat3.s.nodfa_dte = 1; 195 break; 196 default: 197 break; 198 } 199 200 /* Make a guess at the suffix */ 201 /* NSP = everything */ 202 /* EXP = No crypto */ 203 /* SCP = No DFA, No zip */ 204 /* CP = No DFA, No crypto, No zip */ 205 if (fus_dat3.s.nodfa_dte) 206 { 207 if (fus_dat2.s.nocrypto) 208 suffix = "CP"; 209 else 210 suffix = "SCP"; 211 } 212 else if (fus_dat2.s.nocrypto) 213 suffix = "EXP"; 214 else 215 suffix = "NSP"; 216 217 /* Assume pass number is encoded using <5:3><2:0>. Exceptions will be 218 fixed later */ 219 sprintf(pass, "%d.%d", (int)((chip_id>>3)&7)+1, (int)chip_id&7); 220 221 /* Use the number of cores to determine the last 2 digits of the model 222 number. There are some exceptions that are fixed later */ 223 switch (num_cores) 224 { 225 case 16: core_model = "60"; break; 226 case 15: core_model = "58"; break; 227 case 14: core_model = "55"; break; 228 case 13: core_model = "52"; break; 229 case 12: core_model = "50"; break; 230 case 11: core_model = "48"; break; 231 case 10: core_model = "45"; break; 232 case 9: core_model = "42"; break; 233 case 8: core_model = "40"; break; 234 case 7: core_model = "38"; break; 235 case 6: core_model = "34"; break; 236 case 5: core_model = "32"; break; 237 case 4: core_model = "30"; break; 238 case 3: core_model = "25"; break; 239 case 2: core_model = "20"; break; 240 case 1: core_model = "10"; break; 241 default: core_model = "XX"; break; 242 } 243 244 /* Now figure out the family, the first two digits */ 245 switch ((chip_id >> 8) & 0xff) 246 { 247 case 0: /* CN38XX, CN37XX or CN36XX */ 248 if (fus3.cn38xx.crip_512k) 249 { 250 /* For some unknown reason, the 16 core one is called 37 instead of 36 */ 251 if (num_cores >= 16) 252 family = "37"; 253 else 254 family = "36"; 255 } 256 else 257 family = "38"; 258 /* This series of chips didn't follow the standard pass numbering */ 259 switch (chip_id & 0xf) 260 { 261 case 0: strcpy(pass, "1.X"); break; 262 case 1: strcpy(pass, "2.X"); break; 263 case 3: strcpy(pass, "3.X"); break; 264 default:strcpy(pass, "X.X"); break; 265 } 266 break; 267 case 1: /* CN31XX or CN3020 */ 268 if ((chip_id & 0x10) || fus3.cn31xx.crip_128k) 269 family = "30"; 270 else 271 family = "31"; 272 /* This series of chips didn't follow the standard pass numbering */ 273 switch (chip_id & 0xf) 274 { 275 case 0: strcpy(pass, "1.0"); break; 276 case 2: strcpy(pass, "1.1"); break; 277 default:strcpy(pass, "X.X"); break; 278 } 279 break; 280 case 2: /* CN3010 or CN3005 */ 281 family = "30"; 282 /* A chip with half cache is an 05 */ 283 if (fus3.cn30xx.crip_64k) 284 core_model = "05"; 285 /* This series of chips didn't follow the standard pass numbering */ 286 switch (chip_id & 0xf) 287 { 288 case 0: strcpy(pass, "1.0"); break; 289 case 2: strcpy(pass, "1.1"); break; 290 default:strcpy(pass, "X.X"); break; 291 } 292 break; 293 case 3: /* CN58XX */ 294 family = "58"; 295 /* Special case. 4 core, no crypto */ 296 if ((num_cores == 4) && fus_dat2.cn38xx.nocrypto) 297 core_model = "29"; 298 299 /* Pass 1 uses different encodings for pass numbers */ 300 if ((chip_id & 0xFF)< 0x8) 301 { 302 switch (chip_id & 0x3) 303 { 304 case 0: strcpy(pass, "1.0"); break; 305 case 1: strcpy(pass, "1.1"); break; 306 case 3: strcpy(pass, "1.2"); break; 307 default:strcpy(pass, "1.X"); break; 308 } 309 } 310 break; 311 case 4: /* CN57XX, CN56XX, CN55XX, CN54XX */ 312 if (fus_dat2.cn56xx.raid_en) 313 { 314 if (fus3.cn56xx.crip_1024k) 315 family = "55"; 316 else 317 family = "57"; 318 if (fus_dat2.cn56xx.nocrypto) 319 suffix = "SP"; 320 else 321 suffix = "SSP"; 322 } 323 else 324 { 325 if (fus_dat2.cn56xx.nocrypto) 326 suffix = "CP"; 327 else 328 { 329 suffix = "NSP"; 330 if (fus_dat3.s.nozip) 331 suffix = "SCP"; 332 } 333 if (fus3.cn56xx.crip_1024k) 334 family = "54"; 335 else 336 family = "56"; 337 } 338 break; 339 case 6: /* CN50XX */ 340 family = "50"; 341 break; 342 case 7: /* CN52XX */ 343 if (fus3.cn52xx.crip_256k) 344 family = "51"; 345 else 346 family = "52"; 347 break; 348 case 0x90: /* CN63XX */ 349 family = "63"; 350 if (num_cores == 6) 351 core_model = "35"; 352 if (fus_dat2.cn63xx.nocrypto) 353 suffix = "CP"; 354 else if (fus_dat2.cn63xx.dorm_crypto) 355 suffix = "DAP"; 356 else 357 suffix = "AAP"; 358 break; 359 default: 360 family = "XX"; 361 core_model = "XX"; 362 strcpy(pass, "X.X"); 363 suffix = "XXX"; 364 break; 365 } 366 367 clock_mhz = cvmx_clock_get_rate(CVMX_CLOCK_RCLK) / 1000000; 368 369 if (family[0] != '3') 370 { 371 /* Check for model in fuses, overrides normal decode */ 372 /* This is _not_ valid for Octeon CN3XXX models */ 373 fuse_data |= cvmx_fuse_read_byte(51); 374 fuse_data = fuse_data << 8; 375 fuse_data |= cvmx_fuse_read_byte(50); 376 fuse_data = fuse_data << 8; 377 fuse_data |= cvmx_fuse_read_byte(49); 378 fuse_data = fuse_data << 8; 379 fuse_data |= cvmx_fuse_read_byte(48); 380 if (fuse_data & 0x7ffff) 381 { 382 int model = fuse_data & 0x3fff; 383 int suffix = (fuse_data >> 14) & 0x1f; 384 if (suffix && model) /* Have both number and suffix in fuses, so both */ 385 { 386 sprintf(fuse_model, "%d%c",model, 'A' + suffix - 1); 387 core_model = ""; 388 family = fuse_model; 389 } 390 else if (suffix && !model) /* Only have suffix, so add suffix to 'normal' model number */ 391 { 392 sprintf(fuse_model, "%s%c", core_model, 'A' + suffix - 1); 393 core_model = fuse_model; 394 } 395 else /* Don't have suffix, so just use model from fuses */ 396 { 397 sprintf(fuse_model, "%d",model); 398 core_model = ""; 399 family = fuse_model; 400 } 401 } 402 } 403#ifdef CVMX_BUILD_FOR_UBOOT 404 sprintf(buffer, "CN%s%s-%s pass %s", family, core_model, suffix, pass); 405#else 406 sprintf(buffer, "CN%s%sp%s-%d-%s", family, core_model, pass, clock_mhz, suffix); 407#endif 408 return buffer; 409} 410