1 /* 2 * Copyright 2014-2015 Freescale Semiconductor 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <fsl_ifc.h> 9 #include <ahci.h> 10 #include <scsi.h> 11 #include <asm/arch/fsl_serdes.h> 12 #include <asm/arch/soc.h> 13 #include <asm/io.h> 14 #include <asm/global_data.h> 15 #include <asm/arch-fsl-layerscape/config.h> 16 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS 17 #include <fsl_csu.h> 18 #endif 19 #ifdef CONFIG_SYS_FSL_DDR 20 #include <fsl_ddr_sdram.h> 21 #include <fsl_ddr.h> 22 #endif 23 #ifdef CONFIG_CHAIN_OF_TRUST 24 #include <fsl_validate.h> 25 #endif 26 27 DECLARE_GLOBAL_DATA_PTR; 28 29 bool soc_has_dp_ddr(void) 30 { 31 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); 32 u32 svr = gur_in32(&gur->svr); 33 34 /* LS2085A, LS2088A, LS2048A has DP_DDR */ 35 if ((SVR_SOC_VER(svr) == SVR_LS2085A) || 36 (SVR_SOC_VER(svr) == SVR_LS2088A) || 37 (SVR_SOC_VER(svr) == SVR_LS2048A)) 38 return true; 39 40 return false; 41 } 42 43 bool soc_has_aiop(void) 44 { 45 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); 46 u32 svr = gur_in32(&gur->svr); 47 48 /* LS2085A has AIOP */ 49 if (SVR_SOC_VER(svr) == SVR_LS2085A) 50 return true; 51 52 return false; 53 } 54 55 #if defined(CONFIG_FSL_LSCH3) 56 /* 57 * This erratum requires setting a value to eddrtqcr1 to 58 * optimal the DDR performance. 59 */ 60 static void erratum_a008336(void) 61 { 62 #ifdef CONFIG_SYS_FSL_ERRATUM_A008336 63 u32 *eddrtqcr1; 64 65 #ifdef CONFIG_SYS_FSL_DCSR_DDR_ADDR 66 eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR_ADDR + 0x800; 67 if (fsl_ddr_get_version(0) == 0x50200) 68 out_le32(eddrtqcr1, 0x63b30002); 69 #endif 70 #ifdef CONFIG_SYS_FSL_DCSR_DDR2_ADDR 71 eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR2_ADDR + 0x800; 72 if (fsl_ddr_get_version(0) == 0x50200) 73 out_le32(eddrtqcr1, 0x63b30002); 74 #endif 75 #endif 76 } 77 78 /* 79 * This erratum requires a register write before being Memory 80 * controller 3 being enabled. 81 */ 82 static void erratum_a008514(void) 83 { 84 #ifdef CONFIG_SYS_FSL_ERRATUM_A008514 85 u32 *eddrtqcr1; 86 87 #ifdef CONFIG_SYS_FSL_DCSR_DDR3_ADDR 88 eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR3_ADDR + 0x800; 89 out_le32(eddrtqcr1, 0x63b20002); 90 #endif 91 #endif 92 } 93 #ifdef CONFIG_SYS_FSL_ERRATUM_A009635 94 #define PLATFORM_CYCLE_ENV_VAR "a009635_interval_val" 95 96 static unsigned long get_internval_val_mhz(void) 97 { 98 char *interval = getenv(PLATFORM_CYCLE_ENV_VAR); 99 /* 100 * interval is the number of platform cycles(MHz) between 101 * wake up events generated by EPU. 102 */ 103 ulong interval_mhz = get_bus_freq(0) / (1000 * 1000); 104 105 if (interval) 106 interval_mhz = simple_strtoul(interval, NULL, 10); 107 108 return interval_mhz; 109 } 110 111 void erratum_a009635(void) 112 { 113 u32 val; 114 unsigned long interval_mhz = get_internval_val_mhz(); 115 116 if (!interval_mhz) 117 return; 118 119 val = in_le32(DCSR_CGACRE5); 120 writel(val | 0x00000200, DCSR_CGACRE5); 121 122 val = in_le32(EPU_EPCMPR5); 123 writel(interval_mhz, EPU_EPCMPR5); 124 val = in_le32(EPU_EPCCR5); 125 writel(val | 0x82820000, EPU_EPCCR5); 126 val = in_le32(EPU_EPSMCR5); 127 writel(val | 0x002f0000, EPU_EPSMCR5); 128 val = in_le32(EPU_EPECR5); 129 writel(val | 0x20000000, EPU_EPECR5); 130 val = in_le32(EPU_EPGCR); 131 writel(val | 0x80000000, EPU_EPGCR); 132 } 133 #endif /* CONFIG_SYS_FSL_ERRATUM_A009635 */ 134 135 static void erratum_rcw_src(void) 136 { 137 #if defined(CONFIG_SPL) && defined(CONFIG_NAND_BOOT) 138 u32 __iomem *dcfg_ccsr = (u32 __iomem *)DCFG_BASE; 139 u32 __iomem *dcfg_dcsr = (u32 __iomem *)DCFG_DCSR_BASE; 140 u32 val; 141 142 val = in_le32(dcfg_ccsr + DCFG_PORSR1 / 4); 143 val &= ~DCFG_PORSR1_RCW_SRC; 144 val |= DCFG_PORSR1_RCW_SRC_NOR; 145 out_le32(dcfg_dcsr + DCFG_DCSR_PORCR1 / 4, val); 146 #endif 147 } 148 149 #define I2C_DEBUG_REG 0x6 150 #define I2C_GLITCH_EN 0x8 151 /* 152 * This erratum requires setting glitch_en bit to enable 153 * digital glitch filter to improve clock stability. 154 */ 155 #ifdef CONFIG_SYS_FSL_ERRATUM_A009203 156 static void erratum_a009203(void) 157 { 158 u8 __iomem *ptr; 159 #ifdef CONFIG_SYS_I2C 160 #ifdef I2C1_BASE_ADDR 161 ptr = (u8 __iomem *)(I2C1_BASE_ADDR + I2C_DEBUG_REG); 162 163 writeb(I2C_GLITCH_EN, ptr); 164 #endif 165 #ifdef I2C2_BASE_ADDR 166 ptr = (u8 __iomem *)(I2C2_BASE_ADDR + I2C_DEBUG_REG); 167 168 writeb(I2C_GLITCH_EN, ptr); 169 #endif 170 #ifdef I2C3_BASE_ADDR 171 ptr = (u8 __iomem *)(I2C3_BASE_ADDR + I2C_DEBUG_REG); 172 173 writeb(I2C_GLITCH_EN, ptr); 174 #endif 175 #ifdef I2C4_BASE_ADDR 176 ptr = (u8 __iomem *)(I2C4_BASE_ADDR + I2C_DEBUG_REG); 177 178 writeb(I2C_GLITCH_EN, ptr); 179 #endif 180 #endif 181 } 182 #endif 183 184 void bypass_smmu(void) 185 { 186 u32 val; 187 val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK); 188 out_le32(SMMU_SCR0, val); 189 val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK); 190 out_le32(SMMU_NSCR0, val); 191 } 192 void fsl_lsch3_early_init_f(void) 193 { 194 erratum_rcw_src(); 195 init_early_memctl_regs(); /* tighten IFC timing */ 196 #ifdef CONFIG_SYS_FSL_ERRATUM_A009203 197 erratum_a009203(); 198 #endif 199 erratum_a008514(); 200 erratum_a008336(); 201 #ifdef CONFIG_CHAIN_OF_TRUST 202 /* In case of Secure Boot, the IBR configures the SMMU 203 * to allow only Secure transactions. 204 * SMMU must be reset in bypass mode. 205 * Set the ClientPD bit and Clear the USFCFG Bit 206 */ 207 if (fsl_check_boot_mode_secure() == 1) 208 bypass_smmu(); 209 #endif 210 } 211 212 #ifdef CONFIG_SCSI_AHCI_PLAT 213 int sata_init(void) 214 { 215 struct ccsr_ahci __iomem *ccsr_ahci; 216 217 ccsr_ahci = (void *)CONFIG_SYS_SATA2; 218 out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG); 219 out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG); 220 out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG); 221 222 ccsr_ahci = (void *)CONFIG_SYS_SATA1; 223 out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG); 224 out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG); 225 out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG); 226 227 ahci_init((void __iomem *)CONFIG_SYS_SATA1); 228 scsi_scan(false); 229 230 return 0; 231 } 232 #endif 233 234 #elif defined(CONFIG_FSL_LSCH2) 235 #ifdef CONFIG_SCSI_AHCI_PLAT 236 int sata_init(void) 237 { 238 struct ccsr_ahci __iomem *ccsr_ahci = (void *)CONFIG_SYS_SATA; 239 240 /* Disable SATA ECC */ 241 out_le32((void *)CONFIG_SYS_DCSR_DCFG_ADDR + 0x520, 0x80000000); 242 out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG); 243 out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG); 244 out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG); 245 246 ahci_init((void __iomem *)CONFIG_SYS_SATA); 247 scsi_scan(false); 248 249 return 0; 250 } 251 #endif 252 253 static void erratum_a009929(void) 254 { 255 #ifdef CONFIG_SYS_FSL_ERRATUM_A009929 256 struct ccsr_gur *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR; 257 u32 __iomem *dcsr_cop_ccp = (void *)CONFIG_SYS_DCSR_COP_CCP_ADDR; 258 u32 rstrqmr1 = gur_in32(&gur->rstrqmr1); 259 260 rstrqmr1 |= 0x00000400; 261 gur_out32(&gur->rstrqmr1, rstrqmr1); 262 writel(0x01000000, dcsr_cop_ccp); 263 #endif 264 } 265 266 /* 267 * This erratum requires setting a value to eddrtqcr1 to optimal 268 * the DDR performance. The eddrtqcr1 register is in SCFG space 269 * of LS1043A and the offset is 0x157_020c. 270 */ 271 #if defined(CONFIG_SYS_FSL_ERRATUM_A009660) \ 272 && defined(CONFIG_SYS_FSL_ERRATUM_A008514) 273 #error A009660 and A008514 can not be both enabled. 274 #endif 275 276 static void erratum_a009660(void) 277 { 278 #ifdef CONFIG_SYS_FSL_ERRATUM_A009660 279 u32 *eddrtqcr1 = (void *)CONFIG_SYS_FSL_SCFG_ADDR + 0x20c; 280 out_be32(eddrtqcr1, 0x63b20042); 281 #endif 282 } 283 284 static void erratum_a008850_early(void) 285 { 286 #ifdef CONFIG_SYS_FSL_ERRATUM_A008850 287 /* part 1 of 2 */ 288 struct ccsr_cci400 __iomem *cci = (void *)CONFIG_SYS_CCI400_ADDR; 289 struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; 290 291 /* Skip if running at lower exception level */ 292 if (current_el() < 3) 293 return; 294 295 /* disables propagation of barrier transactions to DDRC from CCI400 */ 296 out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER); 297 298 /* disable the re-ordering in DDRC */ 299 ddr_out32(&ddr->eor, DDR_EOR_RD_REOD_DIS | DDR_EOR_WD_REOD_DIS); 300 #endif 301 } 302 303 void erratum_a008850_post(void) 304 { 305 #ifdef CONFIG_SYS_FSL_ERRATUM_A008850 306 /* part 2 of 2 */ 307 struct ccsr_cci400 __iomem *cci = (void *)CONFIG_SYS_CCI400_ADDR; 308 struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; 309 u32 tmp; 310 311 /* Skip if running at lower exception level */ 312 if (current_el() < 3) 313 return; 314 315 /* enable propagation of barrier transactions to DDRC from CCI400 */ 316 out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER); 317 318 /* enable the re-ordering in DDRC */ 319 tmp = ddr_in32(&ddr->eor); 320 tmp &= ~(DDR_EOR_RD_REOD_DIS | DDR_EOR_WD_REOD_DIS); 321 ddr_out32(&ddr->eor, tmp); 322 #endif 323 } 324 325 #ifdef CONFIG_SYS_FSL_ERRATUM_A010315 326 void erratum_a010315(void) 327 { 328 int i; 329 330 for (i = PCIE1; i <= PCIE4; i++) 331 if (!is_serdes_configured(i)) { 332 debug("PCIe%d: disabled all R/W permission!\n", i); 333 set_pcie_ns_access(i, 0); 334 } 335 } 336 #endif 337 338 static void erratum_a010539(void) 339 { 340 #if defined(CONFIG_SYS_FSL_ERRATUM_A010539) && defined(CONFIG_QSPI_BOOT) 341 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); 342 u32 porsr1; 343 344 porsr1 = in_be32(&gur->porsr1); 345 porsr1 &= ~FSL_CHASSIS2_CCSR_PORSR1_RCW_MASK; 346 out_be32((void *)(CONFIG_SYS_DCSR_DCFG_ADDR + DCFG_DCSR_PORCR1), 347 porsr1); 348 #endif 349 } 350 351 /* Get VDD in the unit mV from voltage ID */ 352 int get_core_volt_from_fuse(void) 353 { 354 struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); 355 int vdd; 356 u32 fusesr; 357 u8 vid; 358 359 fusesr = in_be32(&gur->dcfg_fusesr); 360 debug("%s: fusesr = 0x%x\n", __func__, fusesr); 361 vid = (fusesr >> FSL_CHASSIS2_DCFG_FUSESR_ALTVID_SHIFT) & 362 FSL_CHASSIS2_DCFG_FUSESR_ALTVID_MASK; 363 if ((vid == 0) || (vid == FSL_CHASSIS2_DCFG_FUSESR_ALTVID_MASK)) { 364 vid = (fusesr >> FSL_CHASSIS2_DCFG_FUSESR_VID_SHIFT) & 365 FSL_CHASSIS2_DCFG_FUSESR_VID_MASK; 366 } 367 debug("%s: VID = 0x%x\n", __func__, vid); 368 switch (vid) { 369 case 0x00: /* VID isn't supported */ 370 vdd = -EINVAL; 371 debug("%s: The VID feature is not supported\n", __func__); 372 break; 373 case 0x08: /* 0.9V silicon */ 374 vdd = 900; 375 break; 376 case 0x10: /* 1.0V silicon */ 377 vdd = 1000; 378 break; 379 default: /* Other core voltage */ 380 vdd = -EINVAL; 381 printf("%s: The VID(%x) isn't supported\n", __func__, vid); 382 break; 383 } 384 debug("%s: The required minimum volt of CORE is %dmV\n", __func__, vdd); 385 386 return vdd; 387 } 388 389 __weak int board_switch_core_volt(u32 vdd) 390 { 391 return 0; 392 } 393 394 static int setup_core_volt(u32 vdd) 395 { 396 return board_setup_core_volt(vdd); 397 } 398 399 #ifdef CONFIG_SYS_FSL_DDR 400 static void ddr_enable_0v9_volt(bool en) 401 { 402 struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; 403 u32 tmp; 404 405 tmp = ddr_in32(&ddr->ddr_cdr1); 406 407 if (en) 408 tmp |= DDR_CDR1_V0PT9_EN; 409 else 410 tmp &= ~DDR_CDR1_V0PT9_EN; 411 412 ddr_out32(&ddr->ddr_cdr1, tmp); 413 } 414 #endif 415 416 int setup_chip_volt(void) 417 { 418 int vdd; 419 420 vdd = get_core_volt_from_fuse(); 421 /* Nothing to do for silicons doesn't support VID */ 422 if (vdd < 0) 423 return vdd; 424 425 if (setup_core_volt(vdd)) 426 printf("%s: Switch core VDD to %dmV failed\n", __func__, vdd); 427 #ifdef CONFIG_SYS_HAS_SERDES 428 if (setup_serdes_volt(vdd)) 429 printf("%s: Switch SVDD to %dmV failed\n", __func__, vdd); 430 #endif 431 432 #ifdef CONFIG_SYS_FSL_DDR 433 if (vdd == 900) 434 ddr_enable_0v9_volt(true); 435 #endif 436 437 return 0; 438 } 439 440 void fsl_lsch2_early_init_f(void) 441 { 442 struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR; 443 struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR; 444 445 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS 446 enable_layerscape_ns_access(); 447 #endif 448 449 #ifdef CONFIG_FSL_IFC 450 init_early_memctl_regs(); /* tighten IFC timing */ 451 #endif 452 453 #if defined(CONFIG_FSL_QSPI) && !defined(CONFIG_QSPI_BOOT) 454 out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL); 455 #endif 456 /* Make SEC reads and writes snoopable */ 457 setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP | 458 SCFG_SNPCNFGCR_SECWRSNP | 459 SCFG_SNPCNFGCR_SATARDSNP | 460 SCFG_SNPCNFGCR_SATAWRSNP); 461 462 /* 463 * Enable snoop requests and DVM message requests for 464 * Slave insterface S4 (A53 core cluster) 465 */ 466 if (current_el() == 3) { 467 out_le32(&cci->slave[4].snoop_ctrl, 468 CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN); 469 } 470 471 /* Erratum */ 472 erratum_a008850_early(); /* part 1 of 2 */ 473 erratum_a009929(); 474 erratum_a009660(); 475 erratum_a010539(); 476 } 477 #endif 478 479 #ifdef CONFIG_QSPI_AHB_INIT 480 /* Enable 4bytes address support and fast read */ 481 int qspi_ahb_init(void) 482 { 483 u32 *qspi_lut, lut_key, *qspi_key; 484 485 qspi_key = (void *)SYS_FSL_QSPI_ADDR + 0x300; 486 qspi_lut = (void *)SYS_FSL_QSPI_ADDR + 0x310; 487 488 lut_key = in_be32(qspi_key); 489 490 if (lut_key == 0x5af05af0) { 491 /* That means the register is BE */ 492 out_be32(qspi_key, 0x5af05af0); 493 /* Unlock the lut table */ 494 out_be32(qspi_key + 1, 0x00000002); 495 out_be32(qspi_lut, 0x0820040c); 496 out_be32(qspi_lut + 1, 0x1c080c08); 497 out_be32(qspi_lut + 2, 0x00002400); 498 /* Lock the lut table */ 499 out_be32(qspi_key, 0x5af05af0); 500 out_be32(qspi_key + 1, 0x00000001); 501 } else { 502 /* That means the register is LE */ 503 out_le32(qspi_key, 0x5af05af0); 504 /* Unlock the lut table */ 505 out_le32(qspi_key + 1, 0x00000002); 506 out_le32(qspi_lut, 0x0820040c); 507 out_le32(qspi_lut + 1, 0x1c080c08); 508 out_le32(qspi_lut + 2, 0x00002400); 509 /* Lock the lut table */ 510 out_le32(qspi_key, 0x5af05af0); 511 out_le32(qspi_key + 1, 0x00000001); 512 } 513 514 return 0; 515 } 516 #endif 517 518 #ifdef CONFIG_BOARD_LATE_INIT 519 int board_late_init(void) 520 { 521 #ifdef CONFIG_SCSI_AHCI_PLAT 522 sata_init(); 523 #endif 524 #ifdef CONFIG_CHAIN_OF_TRUST 525 fsl_setenv_chain_of_trust(); 526 #endif 527 #ifdef CONFIG_QSPI_AHB_INIT 528 qspi_ahb_init(); 529 #endif 530 531 return 0; 532 } 533 #endif 534