1 /* 2 * Copyright 2014-2015 Freescale Semiconductor, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <asm/io.h> 9 #include <fsl_ddr_sdram.h> 10 #include <asm/processor.h> 11 #include <fsl_immap.h> 12 #include <fsl_ddr.h> 13 #include <fsl_errata.h> 14 15 #if defined(CONFIG_SYS_FSL_ERRATUM_A008511) | \ 16 defined(CONFIG_SYS_FSL_ERRATUM_A009803) 17 static void set_wait_for_bits_clear(void *ptr, u32 value, u32 bits) 18 { 19 int timeout = 1000; 20 21 ddr_out32(ptr, value); 22 23 while (ddr_in32(ptr) & bits) { 24 udelay(100); 25 timeout--; 26 } 27 if (timeout <= 0) 28 puts("Error: wait for clear timeout.\n"); 29 } 30 #endif 31 32 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) 33 #error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL 34 #endif 35 36 /* 37 * regs has the to-be-set values for DDR controller registers 38 * ctrl_num is the DDR controller number 39 * step: 0 goes through the initialization in one pass 40 * 1 sets registers and returns before enabling controller 41 * 2 resumes from step 1 and continues to initialize 42 * Dividing the initialization to two steps to deassert DDR reset signal 43 * to comply with JEDEC specs for RDIMMs. 44 */ 45 void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, 46 unsigned int ctrl_num, int step) 47 { 48 unsigned int i, bus_width; 49 struct ccsr_ddr __iomem *ddr; 50 u32 temp_sdram_cfg; 51 u32 total_gb_size_per_controller; 52 int timeout; 53 #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 54 u32 temp32, mr6; 55 u32 vref_seq1[3] = {0x80, 0x96, 0x16}; /* for range 1 */ 56 u32 vref_seq2[3] = {0xc0, 0xf0, 0x70}; /* for range 2 */ 57 u32 *vref_seq = vref_seq1; 58 #endif 59 #ifdef CONFIG_SYS_FSL_ERRATUM_A009942 60 ulong ddr_freq; 61 u32 tmp; 62 #endif 63 #ifdef CONFIG_FSL_DDR_BIST 64 u32 mtcr, err_detect, err_sbe; 65 u32 cs0_bnds, cs1_bnds, cs2_bnds, cs3_bnds, cs0_config; 66 #endif 67 #ifdef CONFIG_FSL_DDR_BIST 68 char buffer[CONFIG_SYS_CBSIZE]; 69 #endif 70 71 switch (ctrl_num) { 72 case 0: 73 ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; 74 break; 75 #if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 1) 76 case 1: 77 ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR; 78 break; 79 #endif 80 #if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 2) 81 case 2: 82 ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR; 83 break; 84 #endif 85 #if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 3) 86 case 3: 87 ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR; 88 break; 89 #endif 90 default: 91 printf("%s unexpected ctrl_num = %u\n", __func__, ctrl_num); 92 return; 93 } 94 95 if (step == 2) 96 goto step2; 97 98 if (regs->ddr_eor) 99 ddr_out32(&ddr->eor, regs->ddr_eor); 100 101 ddr_out32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); 102 103 for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { 104 if (i == 0) { 105 ddr_out32(&ddr->cs0_bnds, regs->cs[i].bnds); 106 ddr_out32(&ddr->cs0_config, regs->cs[i].config); 107 ddr_out32(&ddr->cs0_config_2, regs->cs[i].config_2); 108 109 } else if (i == 1) { 110 ddr_out32(&ddr->cs1_bnds, regs->cs[i].bnds); 111 ddr_out32(&ddr->cs1_config, regs->cs[i].config); 112 ddr_out32(&ddr->cs1_config_2, regs->cs[i].config_2); 113 114 } else if (i == 2) { 115 ddr_out32(&ddr->cs2_bnds, regs->cs[i].bnds); 116 ddr_out32(&ddr->cs2_config, regs->cs[i].config); 117 ddr_out32(&ddr->cs2_config_2, regs->cs[i].config_2); 118 119 } else if (i == 3) { 120 ddr_out32(&ddr->cs3_bnds, regs->cs[i].bnds); 121 ddr_out32(&ddr->cs3_config, regs->cs[i].config); 122 ddr_out32(&ddr->cs3_config_2, regs->cs[i].config_2); 123 } 124 } 125 126 ddr_out32(&ddr->timing_cfg_3, regs->timing_cfg_3); 127 ddr_out32(&ddr->timing_cfg_0, regs->timing_cfg_0); 128 ddr_out32(&ddr->timing_cfg_1, regs->timing_cfg_1); 129 ddr_out32(&ddr->timing_cfg_2, regs->timing_cfg_2); 130 ddr_out32(&ddr->timing_cfg_4, regs->timing_cfg_4); 131 ddr_out32(&ddr->timing_cfg_5, regs->timing_cfg_5); 132 ddr_out32(&ddr->timing_cfg_6, regs->timing_cfg_6); 133 ddr_out32(&ddr->timing_cfg_7, regs->timing_cfg_7); 134 ddr_out32(&ddr->timing_cfg_8, regs->timing_cfg_8); 135 ddr_out32(&ddr->timing_cfg_9, regs->timing_cfg_9); 136 ddr_out32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl); 137 ddr_out32(&ddr->dq_map_0, regs->dq_map_0); 138 ddr_out32(&ddr->dq_map_1, regs->dq_map_1); 139 ddr_out32(&ddr->dq_map_2, regs->dq_map_2); 140 ddr_out32(&ddr->dq_map_3, regs->dq_map_3); 141 ddr_out32(&ddr->sdram_cfg_3, regs->ddr_sdram_cfg_3); 142 ddr_out32(&ddr->sdram_mode, regs->ddr_sdram_mode); 143 ddr_out32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2); 144 ddr_out32(&ddr->sdram_mode_3, regs->ddr_sdram_mode_3); 145 ddr_out32(&ddr->sdram_mode_4, regs->ddr_sdram_mode_4); 146 ddr_out32(&ddr->sdram_mode_5, regs->ddr_sdram_mode_5); 147 ddr_out32(&ddr->sdram_mode_6, regs->ddr_sdram_mode_6); 148 ddr_out32(&ddr->sdram_mode_7, regs->ddr_sdram_mode_7); 149 ddr_out32(&ddr->sdram_mode_8, regs->ddr_sdram_mode_8); 150 ddr_out32(&ddr->sdram_mode_9, regs->ddr_sdram_mode_9); 151 ddr_out32(&ddr->sdram_mode_10, regs->ddr_sdram_mode_10); 152 ddr_out32(&ddr->sdram_mode_11, regs->ddr_sdram_mode_11); 153 ddr_out32(&ddr->sdram_mode_12, regs->ddr_sdram_mode_12); 154 ddr_out32(&ddr->sdram_mode_13, regs->ddr_sdram_mode_13); 155 ddr_out32(&ddr->sdram_mode_14, regs->ddr_sdram_mode_14); 156 ddr_out32(&ddr->sdram_mode_15, regs->ddr_sdram_mode_15); 157 ddr_out32(&ddr->sdram_mode_16, regs->ddr_sdram_mode_16); 158 ddr_out32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl); 159 #ifdef CONFIG_SYS_FSL_ERRATUM_A009663 160 ddr_out32(&ddr->sdram_interval, 161 regs->ddr_sdram_interval & ~SDRAM_INTERVAL_BSTOPRE); 162 #else 163 ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval); 164 #endif 165 ddr_out32(&ddr->sdram_data_init, regs->ddr_data_init); 166 ddr_out32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl); 167 #ifndef CONFIG_SYS_FSL_DDR_EMU 168 /* 169 * Skip these two registers if running on emulator 170 * because emulator doesn't have skew between bytes. 171 */ 172 173 if (regs->ddr_wrlvl_cntl_2) 174 ddr_out32(&ddr->ddr_wrlvl_cntl_2, regs->ddr_wrlvl_cntl_2); 175 if (regs->ddr_wrlvl_cntl_3) 176 ddr_out32(&ddr->ddr_wrlvl_cntl_3, regs->ddr_wrlvl_cntl_3); 177 #endif 178 179 ddr_out32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr); 180 ddr_out32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1); 181 ddr_out32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2); 182 ddr_out32(&ddr->ddr_sdram_rcw_3, regs->ddr_sdram_rcw_3); 183 ddr_out32(&ddr->ddr_sdram_rcw_4, regs->ddr_sdram_rcw_4); 184 ddr_out32(&ddr->ddr_sdram_rcw_5, regs->ddr_sdram_rcw_5); 185 ddr_out32(&ddr->ddr_sdram_rcw_6, regs->ddr_sdram_rcw_6); 186 ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1); 187 #ifdef CONFIG_DEEP_SLEEP 188 if (is_warm_boot()) { 189 ddr_out32(&ddr->sdram_cfg_2, 190 regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT); 191 ddr_out32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE); 192 ddr_out32(&ddr->init_ext_addr, DDR_INIT_ADDR_EXT_UIA); 193 194 /* DRAM VRef will not be trained */ 195 ddr_out32(&ddr->ddr_cdr2, 196 regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN); 197 } else 198 #endif 199 { 200 ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); 201 ddr_out32(&ddr->init_addr, regs->ddr_init_addr); 202 ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr); 203 ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2); 204 } 205 206 #ifdef CONFIG_SYS_FSL_ERRATUM_A009803 207 /* part 1 of 2 */ 208 if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) { /* for RDIMM */ 209 ddr_out32(&ddr->ddr_sdram_rcw_2, 210 regs->ddr_sdram_rcw_2 & ~0x0f000000); 211 } 212 213 ddr_out32(&ddr->err_disable, regs->err_disable | DDR_ERR_DISABLE_APED); 214 #else 215 ddr_out32(&ddr->err_disable, regs->err_disable); 216 #endif 217 ddr_out32(&ddr->err_int_en, regs->err_int_en); 218 for (i = 0; i < 32; i++) { 219 if (regs->debug[i]) { 220 debug("Write to debug_%d as %08x\n", 221 i+1, regs->debug[i]); 222 ddr_out32(&ddr->debug[i], regs->debug[i]); 223 } 224 } 225 #ifdef CONFIG_SYS_FSL_ERRATUM_A008378 226 /* Erratum applies when accumulated ECC is used, or DBI is enabled */ 227 #define IS_ACC_ECC_EN(v) ((v) & 0x4) 228 #define IS_DBI(v) ((((v) >> 12) & 0x3) == 0x2) 229 if (has_erratum_a008378()) { 230 if (IS_ACC_ECC_EN(regs->ddr_sdram_cfg) || 231 IS_DBI(regs->ddr_sdram_cfg_3)) 232 ddr_setbits32(&ddr->debug[28], 0x9 << 20); 233 } 234 #endif 235 236 #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 237 /* Part 1 of 2 */ 238 /* This erraum only applies to verion 5.2.0 */ 239 if (fsl_ddr_get_version(ctrl_num) == 0x50200) { 240 /* Disable DRAM VRef training */ 241 ddr_out32(&ddr->ddr_cdr2, 242 regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN); 243 /* Disable deskew */ 244 ddr_out32(&ddr->debug[28], 0x400); 245 /* Disable D_INIT */ 246 ddr_out32(&ddr->sdram_cfg_2, 247 regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT); 248 ddr_out32(&ddr->debug[25], 0x9000); 249 } 250 #endif 251 252 #ifdef CONFIG_SYS_FSL_ERRATUM_A009942 253 ddr_freq = get_ddr_freq(ctrl_num) / 1000000; 254 tmp = ddr_in32(&ddr->debug[28]); 255 if (ddr_freq <= 1333) 256 ddr_out32(&ddr->debug[28], tmp | 0x0080006a); 257 else if (ddr_freq <= 1600) 258 ddr_out32(&ddr->debug[28], tmp | 0x0070006f); 259 else if (ddr_freq <= 1867) 260 ddr_out32(&ddr->debug[28], tmp | 0x00700076); 261 else if (ddr_freq <= 2133) 262 ddr_out32(&ddr->debug[28], tmp | 0x0060007b); 263 #endif 264 265 /* 266 * For RDIMMs, JEDEC spec requires clocks to be stable before reset is 267 * deasserted. Clocks start when any chip select is enabled and clock 268 * control register is set. Because all DDR components are connected to 269 * one reset signal, this needs to be done in two steps. Step 1 is to 270 * get the clocks started. Step 2 resumes after reset signal is 271 * deasserted. 272 */ 273 if (step == 1) { 274 udelay(200); 275 return; 276 } 277 278 step2: 279 /* Set, but do not enable the memory */ 280 temp_sdram_cfg = regs->ddr_sdram_cfg; 281 temp_sdram_cfg &= ~(SDRAM_CFG_MEM_EN); 282 ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg); 283 284 /* 285 * 500 painful micro-seconds must elapse between 286 * the DDR clock setup and the DDR config enable. 287 * DDR2 need 200 us, and DDR3 need 500 us from spec, 288 * we choose the max, that is 500 us for all of case. 289 */ 290 udelay(500); 291 mb(); 292 isb(); 293 294 #ifdef CONFIG_DEEP_SLEEP 295 if (is_warm_boot()) { 296 /* enter self-refresh */ 297 temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2); 298 temp_sdram_cfg |= SDRAM_CFG2_FRC_SR; 299 ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg); 300 /* do board specific memory setup */ 301 board_mem_sleep_setup(); 302 303 temp_sdram_cfg = (ddr_in32(&ddr->sdram_cfg) | SDRAM_CFG_BI); 304 } else 305 #endif 306 temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI; 307 /* Let the controller go */ 308 ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN); 309 mb(); 310 isb(); 311 312 #if defined(CONFIG_SYS_FSL_ERRATUM_A008511) || \ 313 defined(CONFIG_SYS_FSL_ERRATUM_A009803) 314 /* Part 2 of 2 */ 315 /* This erraum only applies to verion 5.2.0 */ 316 if (fsl_ddr_get_version(ctrl_num) == 0x50200) { 317 /* Wait for idle */ 318 timeout = 40; 319 while (!(ddr_in32(&ddr->debug[1]) & 0x2) && 320 (timeout > 0)) { 321 udelay(1000); 322 timeout--; 323 } 324 if (timeout <= 0) { 325 printf("Controler %d timeout, debug_2 = %x\n", 326 ctrl_num, ddr_in32(&ddr->debug[1])); 327 } 328 329 #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 330 /* The vref setting sequence is different for range 2 */ 331 if (regs->ddr_cdr2 & DDR_CDR2_VREF_RANGE_2) 332 vref_seq = vref_seq2; 333 334 /* Set VREF */ 335 for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { 336 if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN)) 337 continue; 338 339 mr6 = (regs->ddr_sdram_mode_10 >> 16) | 340 MD_CNTL_MD_EN | 341 MD_CNTL_CS_SEL(i) | 342 MD_CNTL_MD_SEL(6) | 343 0x00200000; 344 temp32 = mr6 | vref_seq[0]; 345 set_wait_for_bits_clear(&ddr->sdram_md_cntl, 346 temp32, MD_CNTL_MD_EN); 347 udelay(1); 348 debug("MR6 = 0x%08x\n", temp32); 349 temp32 = mr6 | vref_seq[1]; 350 set_wait_for_bits_clear(&ddr->sdram_md_cntl, 351 temp32, MD_CNTL_MD_EN); 352 udelay(1); 353 debug("MR6 = 0x%08x\n", temp32); 354 temp32 = mr6 | vref_seq[2]; 355 set_wait_for_bits_clear(&ddr->sdram_md_cntl, 356 temp32, MD_CNTL_MD_EN); 357 udelay(1); 358 debug("MR6 = 0x%08x\n", temp32); 359 } 360 ddr_out32(&ddr->sdram_md_cntl, 0); 361 ddr_out32(&ddr->debug[28], 0); /* Enable deskew */ 362 ddr_out32(&ddr->debug[1], 0x400); /* restart deskew */ 363 /* wait for idle */ 364 timeout = 40; 365 while (!(ddr_in32(&ddr->debug[1]) & 0x2) && 366 (timeout > 0)) { 367 udelay(1000); 368 timeout--; 369 } 370 if (timeout <= 0) { 371 printf("Controler %d timeout, debug_2 = %x\n", 372 ctrl_num, ddr_in32(&ddr->debug[1])); 373 } 374 /* Restore D_INIT */ 375 ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); 376 #endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */ 377 378 #ifdef CONFIG_SYS_FSL_ERRATUM_A009803 379 /* if it's RDIMM */ 380 if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) { 381 for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { 382 if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN)) 383 continue; 384 set_wait_for_bits_clear(&ddr->sdram_md_cntl, 385 MD_CNTL_MD_EN | 386 MD_CNTL_CS_SEL(i) | 387 0x070000ed, 388 MD_CNTL_MD_EN); 389 udelay(1); 390 } 391 } 392 393 ddr_out32(&ddr->err_disable, 394 regs->err_disable & ~DDR_ERR_DISABLE_APED); 395 #endif 396 } 397 #endif 398 399 total_gb_size_per_controller = 0; 400 for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { 401 if (!(regs->cs[i].config & 0x80000000)) 402 continue; 403 total_gb_size_per_controller += 1 << ( 404 ((regs->cs[i].config >> 14) & 0x3) + 2 + 405 ((regs->cs[i].config >> 8) & 0x7) + 12 + 406 ((regs->cs[i].config >> 4) & 0x3) + 0 + 407 ((regs->cs[i].config >> 0) & 0x7) + 8 + 408 3 - ((regs->ddr_sdram_cfg >> 19) & 0x3) - 409 26); /* minus 26 (count of 64M) */ 410 } 411 if (fsl_ddr_get_intl3r() & 0x80000000) /* 3-way interleaving */ 412 total_gb_size_per_controller *= 3; 413 else if (regs->cs[0].config & 0x20000000) /* 2-way interleaving */ 414 total_gb_size_per_controller <<= 1; 415 /* 416 * total memory / bus width = transactions needed 417 * transactions needed / data rate = seconds 418 * to add plenty of buffer, double the time 419 * For example, 2GB on 666MT/s 64-bit bus takes about 402ms 420 * Let's wait for 800ms 421 */ 422 bus_width = 3 - ((ddr_in32(&ddr->sdram_cfg) & SDRAM_CFG_DBW_MASK) 423 >> SDRAM_CFG_DBW_SHIFT); 424 timeout = ((total_gb_size_per_controller << (6 - bus_width)) * 100 / 425 (get_ddr_freq(ctrl_num) >> 20)) << 2; 426 total_gb_size_per_controller >>= 4; /* shift down to gb size */ 427 debug("total %d GB\n", total_gb_size_per_controller); 428 debug("Need to wait up to %d * 10ms\n", timeout); 429 430 /* Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done. */ 431 while ((ddr_in32(&ddr->sdram_cfg_2) & SDRAM_CFG2_D_INIT) && 432 (timeout >= 0)) { 433 udelay(10000); /* throttle polling rate */ 434 timeout--; 435 } 436 437 if (timeout <= 0) 438 printf("Waiting for D_INIT timeout. Memory may not work.\n"); 439 440 #ifdef CONFIG_SYS_FSL_ERRATUM_A009663 441 ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval); 442 #endif 443 444 #ifdef CONFIG_DEEP_SLEEP 445 if (is_warm_boot()) { 446 /* exit self-refresh */ 447 temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2); 448 temp_sdram_cfg &= ~SDRAM_CFG2_FRC_SR; 449 ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg); 450 } 451 #endif 452 453 #ifdef CONFIG_FSL_DDR_BIST 454 #define BIST_PATTERN1 0xFFFFFFFF 455 #define BIST_PATTERN2 0x0 456 #define BIST_CR 0x80010000 457 #define BIST_CR_EN 0x80000000 458 #define BIST_CR_STAT 0x00000001 459 #define CTLR_INTLV_MASK 0x20000000 460 /* Perform build-in test on memory. Three-way interleaving is not yet 461 * supported by this code. */ 462 if (getenv_f("ddr_bist", buffer, CONFIG_SYS_CBSIZE) >= 0) { 463 puts("Running BIST test. This will take a while..."); 464 cs0_config = ddr_in32(&ddr->cs0_config); 465 cs0_bnds = ddr_in32(&ddr->cs0_bnds); 466 cs1_bnds = ddr_in32(&ddr->cs1_bnds); 467 cs2_bnds = ddr_in32(&ddr->cs2_bnds); 468 cs3_bnds = ddr_in32(&ddr->cs3_bnds); 469 if (cs0_config & CTLR_INTLV_MASK) { 470 /* set bnds to non-interleaving */ 471 ddr_out32(&ddr->cs0_bnds, (cs0_bnds & 0xfffefffe) >> 1); 472 ddr_out32(&ddr->cs1_bnds, (cs1_bnds & 0xfffefffe) >> 1); 473 ddr_out32(&ddr->cs2_bnds, (cs2_bnds & 0xfffefffe) >> 1); 474 ddr_out32(&ddr->cs3_bnds, (cs3_bnds & 0xfffefffe) >> 1); 475 } 476 ddr_out32(&ddr->mtp1, BIST_PATTERN1); 477 ddr_out32(&ddr->mtp2, BIST_PATTERN1); 478 ddr_out32(&ddr->mtp3, BIST_PATTERN2); 479 ddr_out32(&ddr->mtp4, BIST_PATTERN2); 480 ddr_out32(&ddr->mtp5, BIST_PATTERN1); 481 ddr_out32(&ddr->mtp6, BIST_PATTERN1); 482 ddr_out32(&ddr->mtp7, BIST_PATTERN2); 483 ddr_out32(&ddr->mtp8, BIST_PATTERN2); 484 ddr_out32(&ddr->mtp9, BIST_PATTERN1); 485 ddr_out32(&ddr->mtp10, BIST_PATTERN2); 486 mtcr = BIST_CR; 487 ddr_out32(&ddr->mtcr, mtcr); 488 timeout = 100; 489 while (timeout > 0 && (mtcr & BIST_CR_EN)) { 490 mdelay(1000); 491 timeout--; 492 mtcr = ddr_in32(&ddr->mtcr); 493 } 494 if (timeout <= 0) 495 puts("Timeout\n"); 496 else 497 puts("Done\n"); 498 err_detect = ddr_in32(&ddr->err_detect); 499 err_sbe = ddr_in32(&ddr->err_sbe); 500 if (mtcr & BIST_CR_STAT) { 501 printf("BIST test failed on controller %d.\n", 502 ctrl_num); 503 } 504 if (err_detect || (err_sbe & 0xffff)) { 505 printf("ECC error detected on controller %d.\n", 506 ctrl_num); 507 } 508 509 if (cs0_config & CTLR_INTLV_MASK) { 510 /* restore bnds registers */ 511 ddr_out32(&ddr->cs0_bnds, cs0_bnds); 512 ddr_out32(&ddr->cs1_bnds, cs1_bnds); 513 ddr_out32(&ddr->cs2_bnds, cs2_bnds); 514 ddr_out32(&ddr->cs3_bnds, cs3_bnds); 515 } 516 } 517 #endif 518 } 519