1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * board/renesas/porter/porter_spl.c 4 * 5 * Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com> 6 */ 7 8 #include <common.h> 9 #include <malloc.h> 10 #include <dm/platform_data/serial_sh.h> 11 #include <asm/processor.h> 12 #include <asm/mach-types.h> 13 #include <asm/io.h> 14 #include <linux/errno.h> 15 #include <asm/arch/sys_proto.h> 16 #include <asm/gpio.h> 17 #include <asm/arch/rmobile.h> 18 #include <asm/arch/rcar-mstp.h> 19 20 #include <spl.h> 21 22 #define TMU0_MSTP125 BIT(25) 23 #define SCIF0_MSTP721 BIT(21) 24 #define QSPI_MSTP917 BIT(17) 25 26 #define SD2CKCR 0xE615026C 27 #define SD_97500KHZ 0x7 28 29 struct reg_config { 30 u16 off; 31 u32 val; 32 }; 33 34 static void dbsc_wait(u16 reg) 35 { 36 static const u32 dbsc3_0_base = DBSC3_0_BASE; 37 static const u32 dbsc3_1_base = DBSC3_0_BASE + 0x10000; 38 39 while (!(readl(dbsc3_0_base + reg) & BIT(0))) 40 ; 41 42 while (!(readl(dbsc3_1_base + reg) & BIT(0))) 43 ; 44 } 45 46 static void spl_init_sys(void) 47 { 48 u32 r0 = 0; 49 50 writel(0xa5a5a500, 0xe6020004); 51 writel(0xa5a5a500, 0xe6030004); 52 53 asm volatile( 54 /* ICIALLU - Invalidate I$ to PoU */ 55 "mcr 15, 0, %0, cr7, cr5, 0 \n" 56 /* BPIALL - Invalidate branch predictors */ 57 "mcr 15, 0, %0, cr7, cr5, 6 \n" 58 /* Set SCTLR[IZ] */ 59 "mrc 15, 0, %0, cr1, cr0, 0 \n" 60 "orr %0, #0x1800 \n" 61 "mcr 15, 0, %0, cr1, cr0, 0 \n" 62 "isb sy \n" 63 :"=r"(r0)); 64 } 65 66 static void spl_init_pfc(void) 67 { 68 static const struct reg_config pfc_with_unlock[] = { 69 { 0x0090, 0x60000000 }, 70 { 0x0094, 0x60000000 }, 71 { 0x0098, 0x00800200 }, 72 { 0x009c, 0x00000000 }, 73 { 0x0020, 0x00000000 }, 74 { 0x0024, 0x00000000 }, 75 { 0x0028, 0x000244c8 }, 76 { 0x002c, 0x00000000 }, 77 { 0x0030, 0x00002400 }, 78 { 0x0034, 0x01520000 }, 79 { 0x0038, 0x00724003 }, 80 { 0x003c, 0x00000000 }, 81 { 0x0040, 0x00000000 }, 82 { 0x0044, 0x00000000 }, 83 { 0x0048, 0x00000000 }, 84 { 0x004c, 0x00000000 }, 85 { 0x0050, 0x00000000 }, 86 { 0x0054, 0x00000000 }, 87 { 0x0058, 0x00000000 }, 88 { 0x005c, 0x00000000 }, 89 { 0x0160, 0x00000000 }, 90 { 0x0004, 0xffffffff }, 91 { 0x0008, 0x00ec3fff }, 92 { 0x000c, 0x3bc001e7 }, 93 { 0x0010, 0x5bffffff }, 94 { 0x0014, 0x1ffffffb }, 95 { 0x0018, 0x01bffff0 }, 96 { 0x001c, 0xcf7fffff }, 97 { 0x0074, 0x0381fc00 }, 98 }; 99 100 static const struct reg_config pfc_without_unlock[] = { 101 { 0x0100, 0xffffffdf }, 102 { 0x0104, 0xc883c3ff }, 103 { 0x0108, 0x1201f3c9 }, 104 { 0x010c, 0x00000000 }, 105 { 0x0110, 0xffffeb04 }, 106 { 0x0114, 0xc003ffff }, 107 { 0x0118, 0x0800000f }, 108 { 0x011c, 0x00187ff0 }, 109 }; 110 111 static const u32 pfc_base = 0xe6060000; 112 113 unsigned int i; 114 115 for (i = 0; i < ARRAY_SIZE(pfc_with_unlock); i++) { 116 writel(~pfc_with_unlock[i].val, pfc_base); 117 writel(pfc_with_unlock[i].val, 118 pfc_base | pfc_with_unlock[i].off); 119 } 120 121 for (i = 0; i < ARRAY_SIZE(pfc_without_unlock); i++) 122 writel(pfc_without_unlock[i].val, 123 pfc_base | pfc_without_unlock[i].off); 124 } 125 126 static void spl_init_gpio(void) 127 { 128 static const u16 gpio_offs[] = { 129 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, 0x5400, 0x5800 130 }; 131 132 static const struct reg_config gpio_set[] = { 133 { 0x2000, 0x04381000 }, 134 { 0x5000, 0x00000000 }, 135 { 0x5800, 0x000e0000 }, 136 }; 137 138 static const struct reg_config gpio_clr[] = { 139 { 0x1000, 0x00000000 }, 140 { 0x2000, 0x04381010 }, 141 { 0x3000, 0x00000000 }, 142 { 0x4000, 0x00000000 }, 143 { 0x5000, 0x00400000 }, 144 { 0x5400, 0x00000000 }, 145 { 0x5800, 0x000e0380 }, 146 }; 147 148 static const u32 gpio_base = 0xe6050000; 149 150 unsigned int i; 151 152 for (i = 0; i < ARRAY_SIZE(gpio_offs); i++) 153 writel(0, gpio_base | 0x20 | gpio_offs[i]); 154 155 for (i = 0; i < ARRAY_SIZE(gpio_offs); i++) 156 writel(0, gpio_base | 0x00 | gpio_offs[i]); 157 158 for (i = 0; i < ARRAY_SIZE(gpio_set); i++) 159 writel(gpio_set[i].val, gpio_base | 0x08 | gpio_set[i].off); 160 161 for (i = 0; i < ARRAY_SIZE(gpio_clr); i++) 162 writel(gpio_clr[i].val, gpio_base | 0x04 | gpio_clr[i].off); 163 } 164 165 static void spl_init_lbsc(void) 166 { 167 static const struct reg_config lbsc_config[] = { 168 { 0x00, 0x00000020 }, 169 { 0x08, 0x00002020 }, 170 { 0x30, 0x2a103320 }, 171 { 0x38, 0xff70ff70 }, 172 }; 173 174 static const u16 lbsc_offs[] = { 175 0x80, 0x84, 0x88, 0x8c, 0xa0, 0xc0, 0xc4, 0xc8, 0x180 176 }; 177 178 static const u32 lbsc_base = 0xfec00200; 179 180 unsigned int i; 181 182 for (i = 0; i < ARRAY_SIZE(lbsc_config); i++) { 183 writel(lbsc_config[i].val, 184 lbsc_base | lbsc_config[i].off); 185 writel(lbsc_config[i].val, 186 lbsc_base | (lbsc_config[i].off + 4)); 187 } 188 189 for (i = 0; i < ARRAY_SIZE(lbsc_offs); i++) 190 writel(0, lbsc_base | lbsc_offs[i]); 191 } 192 193 static void spl_init_dbsc(void) 194 { 195 static const struct reg_config dbsc_config1[] = { 196 { 0x0280, 0x0000a55a }, 197 { 0x4000, 0x0000a55a }, 198 { 0x4008, 0x00000001 }, 199 { 0x0018, 0x21000000 }, 200 { 0x0018, 0x11000000 }, 201 { 0x0018, 0x10000000 }, 202 { 0x0290, 0x00000001 }, 203 { 0x02a0, 0x80000000 }, 204 { 0x0290, 0x00000004 }, 205 }; 206 207 static const struct reg_config dbsc_config2[] = { 208 { 0x0290, 0x00000006 }, 209 { 0x02a0, 0x0001c000 }, 210 }; 211 212 static const struct reg_config dbsc_config3r0d0[] = { 213 { 0x0290, 0x0000000f }, 214 { 0x02a0, 0x00181885 }, 215 { 0x0290, 0x00000070 }, 216 { 0x02a0, 0x7c000887 }, 217 { 0x0290, 0x00000080 }, 218 { 0x02a0, 0x7c000887 }, 219 { 0x0290, 0x00000090 }, 220 { 0x02a0, 0x7c000887 }, 221 { 0x0290, 0x000000a0 }, 222 { 0x02a0, 0x7c000887 }, 223 { 0x0290, 0x000000b0 }, 224 { 0x02a0, 0x7c000880 }, 225 { 0x0290, 0x000000c0 }, 226 { 0x02a0, 0x7c000880 }, 227 { 0x0290, 0x000000d0 }, 228 { 0x02a0, 0x7c000880 }, 229 { 0x0290, 0x000000e0 }, 230 { 0x02a0, 0x7c000880 }, 231 }; 232 static const struct reg_config dbsc_config3r0d1[] = { 233 { 0x0290, 0x0000000f }, 234 { 0x02a0, 0x00181885 }, 235 { 0x0290, 0x00000070 }, 236 { 0x02a0, 0x7c000887 }, 237 { 0x0290, 0x00000080 }, 238 { 0x02a0, 0x7c000887 }, 239 { 0x0290, 0x00000090 }, 240 { 0x02a0, 0x7c000887 }, 241 { 0x0290, 0x000000a0 }, 242 { 0x02a0, 0x7c000887 }, 243 }; 244 245 static const struct reg_config dbsc_config3r2[] = { 246 { 0x0290, 0x0000000f }, 247 { 0x02a0, 0x00181224 }, 248 }; 249 250 static const struct reg_config dbsc_config4[] = { 251 { 0x0290, 0x00000010 }, 252 { 0x02a0, 0xf004649b }, 253 { 0x0290, 0x00000061 }, 254 { 0x02a0, 0x0000006d }, 255 { 0x0290, 0x00000001 }, 256 { 0x02a0, 0x00000073 }, 257 { 0x0020, 0x00000007 }, 258 { 0x0024, 0x0f030a02 }, 259 { 0x0030, 0x00000001 }, 260 { 0x00b0, 0x00000000 }, 261 { 0x0040, 0x0000000b }, 262 { 0x0044, 0x00000008 }, 263 { 0x0048, 0x00000000 }, 264 { 0x0050, 0x0000000b }, 265 { 0x0054, 0x000c000b }, 266 { 0x0058, 0x00000027 }, 267 { 0x005c, 0x0000001c }, 268 { 0x0060, 0x00000006 }, 269 { 0x0064, 0x00000020 }, 270 { 0x0068, 0x00000008 }, 271 { 0x006c, 0x0000000c }, 272 { 0x0070, 0x00000009 }, 273 { 0x0074, 0x00000012 }, 274 { 0x0078, 0x000000d0 }, 275 { 0x007c, 0x00140005 }, 276 { 0x0080, 0x00050004 }, 277 { 0x0084, 0x70233005 }, 278 { 0x0088, 0x000c0000 }, 279 { 0x008c, 0x00000200 }, 280 { 0x0090, 0x00000040 }, 281 { 0x0100, 0x00000001 }, 282 { 0x00c0, 0x00020001 }, 283 { 0x00c8, 0x20042004 }, 284 { 0x0380, 0x00020002 }, 285 { 0x0390, 0x0000001f }, 286 }; 287 288 static const struct reg_config dbsc_config5[] = { 289 { 0x0244, 0x00000011 }, 290 { 0x0290, 0x00000003 }, 291 { 0x02a0, 0x0300c561 }, 292 { 0x0290, 0x00000023 }, 293 { 0x02a0, 0x00fcdb60 }, 294 { 0x0290, 0x00000011 }, 295 { 0x02a0, 0x1000040b }, 296 { 0x0290, 0x00000012 }, 297 { 0x02a0, 0x9d9cbb66 }, 298 { 0x0290, 0x00000013 }, 299 { 0x02a0, 0x1a868400 }, 300 { 0x0290, 0x00000014 }, 301 { 0x02a0, 0x300214d8 }, 302 { 0x0290, 0x00000015 }, 303 { 0x02a0, 0x00000d70 }, 304 { 0x0290, 0x00000016 }, 305 { 0x02a0, 0x00000006 }, 306 { 0x0290, 0x00000017 }, 307 { 0x02a0, 0x00000018 }, 308 { 0x0290, 0x0000001a }, 309 { 0x02a0, 0x910035c7 }, 310 { 0x0290, 0x00000004 }, 311 }; 312 313 static const struct reg_config dbsc_config6[] = { 314 { 0x0290, 0x00000001 }, 315 { 0x02a0, 0x00000181 }, 316 { 0x0018, 0x11000000 }, 317 { 0x0290, 0x00000004 }, 318 }; 319 320 static const struct reg_config dbsc_config7[] = { 321 { 0x0290, 0x00000001 }, 322 { 0x02a0, 0x0000fe01 }, 323 { 0x0304, 0x00000000 }, 324 { 0x00f4, 0x01004c20 }, 325 { 0x00f8, 0x014a00b9 }, 326 { 0x00e0, 0x00000140 }, 327 { 0x00e4, 0x00081860 }, 328 { 0x00e8, 0x00010000 }, 329 { 0x0290, 0x00000004 }, 330 }; 331 332 static const struct reg_config dbsc_config8[] = { 333 { 0x0014, 0x00000001 }, 334 { 0x0290, 0x00000010 }, 335 { 0x02a0, 0xf00464db }, 336 { 0x4008, 0x00000000 }, 337 { 0x4000, 0x00000000 }, 338 { 0x0010, 0x00000001 }, 339 { 0x0280, 0x00000000 }, 340 }; 341 342 static const u32 dbsc3_0_base = DBSC3_0_BASE; 343 static const u32 dbsc3_1_base = DBSC3_0_BASE + 0x10000; 344 static const u32 prr_base = 0xff000044; 345 const u16 prr_rev = readl(prr_base) & 0x7fff; 346 unsigned int i; 347 348 for (i = 0; i < ARRAY_SIZE(dbsc_config1); i++) { 349 writel(dbsc_config1[i].val, dbsc3_0_base | dbsc_config1[i].off); 350 writel(dbsc_config1[i].val, dbsc3_1_base | dbsc_config1[i].off); 351 } 352 353 dbsc_wait(0x2a0); 354 355 for (i = 0; i < ARRAY_SIZE(dbsc_config2); i++) { 356 writel(dbsc_config2[i].val, dbsc3_0_base | dbsc_config2[i].off); 357 writel(dbsc_config2[i].val, dbsc3_1_base | dbsc_config2[i].off); 358 } 359 360 if (prr_rev == 0x4700) { 361 for (i = 0; i < ARRAY_SIZE(dbsc_config3r0d0); i++) { 362 writel(dbsc_config3r0d0[i].val, 363 dbsc3_0_base | dbsc_config3r0d0[i].off); 364 } 365 for (i = 0; i < ARRAY_SIZE(dbsc_config3r0d1); i++) { 366 writel(dbsc_config3r0d1[i].val, 367 dbsc3_1_base | dbsc_config3r0d1[i].off); 368 } 369 } else if (prr_rev != 0x4710) { 370 for (i = 0; i < ARRAY_SIZE(dbsc_config3r2); i++) { 371 writel(dbsc_config3r2[i].val, 372 dbsc3_0_base | dbsc_config3r2[i].off); 373 writel(dbsc_config3r2[i].val, 374 dbsc3_1_base | dbsc_config3r2[i].off); 375 } 376 } 377 378 for (i = 0; i < ARRAY_SIZE(dbsc_config4); i++) { 379 writel(dbsc_config4[i].val, dbsc3_0_base | dbsc_config4[i].off); 380 writel(dbsc_config4[i].val, dbsc3_1_base | dbsc_config4[i].off); 381 } 382 383 dbsc_wait(0x240); 384 385 for (i = 0; i < ARRAY_SIZE(dbsc_config5); i++) { 386 writel(dbsc_config5[i].val, dbsc3_0_base | dbsc_config5[i].off); 387 writel(dbsc_config5[i].val, dbsc3_1_base | dbsc_config5[i].off); 388 } 389 390 dbsc_wait(0x2a0); 391 392 for (i = 0; i < ARRAY_SIZE(dbsc_config6); i++) { 393 writel(dbsc_config6[i].val, dbsc3_0_base | dbsc_config6[i].off); 394 writel(dbsc_config6[i].val, dbsc3_1_base | dbsc_config6[i].off); 395 } 396 397 dbsc_wait(0x2a0); 398 399 for (i = 0; i < ARRAY_SIZE(dbsc_config7); i++) { 400 writel(dbsc_config7[i].val, dbsc3_0_base | dbsc_config7[i].off); 401 writel(dbsc_config7[i].val, dbsc3_1_base | dbsc_config7[i].off); 402 } 403 404 dbsc_wait(0x2a0); 405 406 for (i = 0; i < ARRAY_SIZE(dbsc_config8); i++) { 407 writel(dbsc_config8[i].val, dbsc3_0_base | dbsc_config8[i].off); 408 writel(dbsc_config8[i].val, dbsc3_1_base | dbsc_config8[i].off); 409 } 410 411 } 412 413 static void spl_init_qspi(void) 414 { 415 mstp_clrbits_le32(MSTPSR9, SMSTPCR9, QSPI_MSTP917); 416 417 static const u32 qspi_base = 0xe6b10000; 418 419 writeb(0x08, qspi_base + 0x00); 420 writeb(0x00, qspi_base + 0x01); 421 writeb(0x06, qspi_base + 0x02); 422 writeb(0x01, qspi_base + 0x0a); 423 writeb(0x00, qspi_base + 0x0b); 424 writeb(0x00, qspi_base + 0x0c); 425 writeb(0x00, qspi_base + 0x0d); 426 writeb(0x00, qspi_base + 0x0e); 427 428 writew(0xe080, qspi_base + 0x10); 429 430 writeb(0xc0, qspi_base + 0x18); 431 writeb(0x00, qspi_base + 0x18); 432 writeb(0x00, qspi_base + 0x08); 433 writeb(0x48, qspi_base + 0x00); 434 } 435 436 void board_init_f(ulong dummy) 437 { 438 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125); 439 mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF0_MSTP721); 440 441 /* 442 * SD0 clock is set to 97.5MHz by default. 443 * Set SD2 to the 97.5MHz as well. 444 */ 445 writel(SD_97500KHZ, SD2CKCR); 446 447 spl_init_sys(); 448 spl_init_pfc(); 449 spl_init_gpio(); 450 spl_init_lbsc(); 451 spl_init_dbsc(); 452 spl_init_qspi(); 453 } 454 455 void spl_board_init(void) 456 { 457 /* UART clocks enabled and gd valid - init serial console */ 458 preloader_console_init(); 459 } 460 461 void board_boot_order(u32 *spl_boot_list) 462 { 463 const u32 jtag_magic = 0x1337c0de; 464 const u32 load_magic = 0xb33fc0de; 465 466 /* 467 * If JTAG probe sets special word at 0xe6300020, then it must 468 * put U-Boot into RAM and SPL will start it from RAM. 469 */ 470 if (readl(CONFIG_SPL_TEXT_BASE + 0x20) == jtag_magic) { 471 printf("JTAG boot detected!\n"); 472 473 while (readl(CONFIG_SPL_TEXT_BASE + 0x24) != load_magic) 474 ; 475 476 spl_boot_list[0] = BOOT_DEVICE_RAM; 477 spl_boot_list[1] = BOOT_DEVICE_NONE; 478 479 return; 480 } 481 482 /* Boot from SPI NOR with YMODEM UART fallback. */ 483 spl_boot_list[0] = BOOT_DEVICE_SPI; 484 spl_boot_list[1] = BOOT_DEVICE_UART; 485 spl_boot_list[2] = BOOT_DEVICE_NONE; 486 } 487 488 void reset_cpu(ulong addr) 489 { 490 } 491