1/* 2 * Copyright (C) 2011, 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> 3 * Copyright (C) 2011, 2012 Renesas Solutions Corp. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation; either version 2 of 8 * the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 */ 16#include <config.h> 17#include <version.h> 18#include <asm/processor.h> 19#include <asm/macro.h> 20 21#include <asm/processor.h> 22 23 .global lowlevel_init 24 25 .text 26 .align 2 27 28lowlevel_init: 29 30 /* WDT */ 31 write32 WDTCSR_A, WDTCSR_D 32 33 /* MMU */ 34 write32 MMUCR_A, MMUCR_D 35 36 write32 FRQCR2_A, FRQCR2_D 37 write32 FRQCR0_A, FRQCR0_D 38 39 write32 CS0CTRL_A, CS0CTRL_D 40 write32 CS1CTRL_A, CS1CTRL_D 41 write32 CS0CTRL2_A, CS0CTRL2_D 42 43 write32 CSPWCR0_A, CSPWCR0_D 44 write32 CSPWCR1_A, CSPWCR1_D 45 write32 CS1GDST_A, CS1GDST_D 46 47 # clock mode check 48 mov.l MODEMR, r1 49 mov.l @r1, r0 50 and #6, r0 /* Check 1 and 2 bit.*/ 51 cmp/eq #2, r0 /* 0x02 is 533Mhz mode */ 52 bt init_lbsc_533 53 54init_lbsc_400: 55 56 write32 CSWCR0_A, CSWCR0_D_400 57 write32 CSWCR1_A, CSWCR1_D 58 59 bra init_dbsc3_400_pad 60 nop 61 62 .align 2 63 64MODEMR: .long 0xFFCC0020 65WDTCSR_A: .long 0xFFCC0004 66WDTCSR_D: .long 0xA5000000 67MMUCR_A: .long 0xFF000010 68MMUCR_D: .long 0x00000004 69 70FRQCR2_A: .long 0xFFC80008 71FRQCR2_D: .long 0x00000000 72FRQCR0_A: .long 0xFFC80000 73FRQCR0_D: .long 0xCF000001 74 75CS0CTRL_A: .long 0xFF800200 76CS0CTRL_D: .long 0x00000020 77CS1CTRL_A: .long 0xFF800204 78CS1CTRL_D: .long 0x00000020 79 80CS0CTRL2_A: .long 0xFF800220 81CS0CTRL2_D: .long 0x00004000 82 83CSPWCR0_A: .long 0xFF800280 84CSPWCR0_D: .long 0x00000000 85CSPWCR1_A: .long 0xFF800284 86CSPWCR1_D: .long 0x00000000 87CS1GDST_A: .long 0xFF8002C0 88CS1GDST_D: .long 0x00000011 89 90init_lbsc_533: 91 92 write32 CSWCR0_A, CSWCR0_D_533 93 write32 CSWCR1_A, CSWCR1_D 94 95 bra init_dbsc3_533_pad 96 nop 97 98 .align 2 99 100CSWCR0_A: .long 0xFF800230 101CSWCR0_D_533: .long 0x01120104 102CSWCR0_D_400: .long 0x02120114 103CSWCR1_A: .long 0xFF800234 104CSWCR1_D: .long 0x077F077F 105 106init_dbsc3_400_pad: 107 108 write32 DBPDCNT3_A, DBPDCNT3_D 109 wait_timer WAIT_200US_400 110 111 write32 DBPDCNT0_A, DBPDCNT0_D_400 112 write32 DBPDCNT3_A, DBPDCNT3_D0 113 write32 DBPDCNT1_A, DBPDCNT1_D 114 115 write32 DBPDCNT3_A, DBPDCNT3_D1 116 wait_timer WAIT_32MCLK 117 118 write32 DBPDCNT3_A, DBPDCNT3_D2 119 wait_timer WAIT_100US_400 120 121 write32 DBPDCNT3_A, DBPDCNT3_D3 122 wait_timer WAIT_16MCLK 123 124 write32 DBPDCNT3_A, DBPDCNT3_D4 125 wait_timer WAIT_200US_400 126 127 write32 DBPDCNT3_A, DBPDCNT3_D5 128 wait_timer WAIT_1MCLK 129 130 write32 DBPDCNT3_A, DBPDCNT3_D6 131 wait_timer WAIT_10KMCLK 132 133 bra init_dbsc3_ctrl_400 134 nop 135 136 .align 2 137 138init_dbsc3_533_pad: 139 140 write32 DBPDCNT3_A, DBPDCNT3_D 141 wait_timer WAIT_200US_533 142 143 write32 DBPDCNT0_A, DBPDCNT0_D_533 144 write32 DBPDCNT3_A, DBPDCNT3_D0 145 write32 DBPDCNT1_A, DBPDCNT1_D 146 147 write32 DBPDCNT3_A, DBPDCNT3_D1 148 wait_timer WAIT_32MCLK 149 150 write32 DBPDCNT3_A, DBPDCNT3_D2 151 wait_timer WAIT_100US_533 152 153 write32 DBPDCNT3_A, DBPDCNT3_D3 154 wait_timer WAIT_16MCLK 155 156 write32 DBPDCNT3_A, DBPDCNT3_D4 157 wait_timer WAIT_200US_533 158 159 write32 DBPDCNT3_A, DBPDCNT3_D5 160 wait_timer WAIT_1MCLK 161 162 write32 DBPDCNT3_A, DBPDCNT3_D6 163 wait_timer WAIT_10KMCLK 164 165 bra init_dbsc3_ctrl_533 166 nop 167 168 .align 2 169 170WAIT_200US_400: .long 40000 171WAIT_200US_533: .long 53300 172WAIT_100US_400: .long 20000 173WAIT_100US_533: .long 26650 174WAIT_32MCLK: .long 32 175WAIT_16MCLK: .long 16 176WAIT_1MCLK: .long 1 177WAIT_10KMCLK: .long 10000 178 179DBPDCNT0_A: .long 0xFE800200 180DBPDCNT0_D_533: .long 0x00010245 181DBPDCNT0_D_400: .long 0x00010235 182DBPDCNT1_A: .long 0xFE800204 183DBPDCNT1_D: .long 0x00000014 184DBPDCNT3_A: .long 0xFE80020C 185DBPDCNT3_D: .long 0x80000000 186DBPDCNT3_D0: .long 0x800F0000 187DBPDCNT3_D1: .long 0x800F1000 188DBPDCNT3_D2: .long 0x820F1000 189DBPDCNT3_D3: .long 0x860F1000 190DBPDCNT3_D4: .long 0x870F1000 191DBPDCNT3_D5: .long 0x870F3000 192DBPDCNT3_D6: .long 0x870F7000 193 194init_dbsc3_ctrl_400: 195 196 write32 DBKIND_A, DBKIND_D 197 write32 DBCONF_A, DBCONF_D 198 199 write32 DBTR0_A, DBTR0_D_400 200 write32 DBTR1_A, DBTR1_D_400 201 write32 DBTR2_A, DBTR2_D 202 write32 DBTR3_A, DBTR3_D_400 203 write32 DBTR4_A, DBTR4_D_400 204 write32 DBTR5_A, DBTR5_D_400 205 write32 DBTR6_A, DBTR6_D_400 206 write32 DBTR7_A, DBTR7_D 207 write32 DBTR8_A, DBTR8_D_400 208 write32 DBTR9_A, DBTR9_D 209 write32 DBTR10_A, DBTR10_D_400 210 write32 DBTR11_A, DBTR11_D 211 write32 DBTR12_A, DBTR12_D_400 212 write32 DBTR13_A, DBTR13_D_400 213 write32 DBTR14_A, DBTR14_D 214 write32 DBTR15_A, DBTR15_D 215 write32 DBTR16_A, DBTR16_D_400 216 write32 DBTR17_A, DBTR17_D_400 217 write32 DBTR18_A, DBTR18_D_400 218 219 write32 DBBL_A, DBBL_D 220 write32 DBRNK0_A, DBRNK0_D 221 222 write32 DBCMD_A, DBCMD_D0_400 223 write32 DBCMD_A, DBCMD_D1 224 write32 DBCMD_A, DBCMD_D2 225 write32 DBCMD_A, DBCMD_D3 226 write32 DBCMD_A, DBCMD_D4 227 write32 DBCMD_A, DBCMD_D5_400 228 write32 DBCMD_A, DBCMD_D6 229 write32 DBCMD_A, DBCMD_D7 230 write32 DBCMD_A, DBCMD_D8 231 write32 DBCMD_A, DBCMD_D9_400 232 write32 DBCMD_A, DBCMD_D10 233 write32 DBCMD_A, DBCMD_D11 234 write32 DBCMD_A, DBCMD_D12 235 236 write32 DBRFCNF0_A, DBRFCNF0_D 237 write32 DBRFCNF1_A, DBRFCNF1_D_400 238 write32 DBRFCNF2_A, DBRFCNF2_D 239 write32 DBRFEN_A, DBRFEN_D 240 write32 DBACEN_A, DBACEN_D 241 write32 DBACEN_A, DBACEN_D 242 243 /* Dummy read */ 244 mov.l DBWAIT_A, r1 245 synco 246 mov.l @r1, r0 247 synco 248 249 /* Dummy read */ 250 mov.l SDRAM_A, r1 251 synco 252 mov.l @r1, r0 253 synco 254 255 /* need sleep 186A0 */ 256 257 bra finish_init_sh7734 258 nop 259 260 .align 2 261 262init_dbsc3_ctrl_533: 263 264 write32 DBKIND_A, DBKIND_D 265 write32 DBCONF_A, DBCONF_D 266 267 write32 DBTR0_A, DBTR0_D_533 268 write32 DBTR1_A, DBTR1_D_533 269 write32 DBTR2_A, DBTR2_D 270 write32 DBTR3_A, DBTR3_D_533 271 write32 DBTR4_A, DBTR4_D_533 272 write32 DBTR5_A, DBTR5_D_533 273 write32 DBTR6_A, DBTR6_D_533 274 write32 DBTR7_A, DBTR7_D 275 write32 DBTR8_A, DBTR8_D_533 276 write32 DBTR9_A, DBTR9_D 277 write32 DBTR10_A, DBTR10_D_533 278 write32 DBTR11_A, DBTR11_D 279 write32 DBTR12_A, DBTR12_D_533 280 write32 DBTR13_A, DBTR13_D_533 281 write32 DBTR14_A, DBTR14_D 282 write32 DBTR15_A, DBTR15_D 283 write32 DBTR16_A, DBTR16_D_533 284 write32 DBTR17_A, DBTR17_D_533 285 write32 DBTR18_A, DBTR18_D_533 286 287 write32 DBBL_A, DBBL_D 288 write32 DBRNK0_A, DBRNK0_D 289 290 write32 DBCMD_A, DBCMD_D0_533 291 write32 DBCMD_A, DBCMD_D1 292 write32 DBCMD_A, DBCMD_D2 293 write32 DBCMD_A, DBCMD_D3 294 write32 DBCMD_A, DBCMD_D4 295 write32 DBCMD_A, DBCMD_D5_533 296 write32 DBCMD_A, DBCMD_D6 297 write32 DBCMD_A, DBCMD_D7 298 write32 DBCMD_A, DBCMD_D8 299 write32 DBCMD_A, DBCMD_D9_533 300 write32 DBCMD_A, DBCMD_D10 301 write32 DBCMD_A, DBCMD_D11 302 write32 DBCMD_A, DBCMD_D12 303 304 write32 DBRFCNF0_A, DBRFCNF0_D 305 write32 DBRFCNF1_A, DBRFCNF1_D_533 306 write32 DBRFCNF2_A, DBRFCNF2_D 307 write32 DBRFEN_A, DBRFEN_D 308 write32 DBACEN_A, DBACEN_D 309 write32 DBACEN_A, DBACEN_D 310 311 /* Dummy read */ 312 mov.l DBWAIT_A, r1 313 synco 314 mov.l @r1, r0 315 synco 316 317 /* Dummy read */ 318 mov.l SDRAM_A, r1 319 synco 320 mov.l @r1, r0 321 synco 322 323 /* need sleep 186A0 */ 324 325 bra finish_init_sh7734 326 nop 327 328 .align 2 329 330DBKIND_A: .long 0xFE800020 331DBKIND_D: .long 0x00000005 332DBCONF_A: .long 0xFE800024 333DBCONF_D: .long 0x0D020A01 334 335DBTR0_A: .long 0xFE800040 336DBTR0_D_533:.long 0x00000004 337DBTR0_D_400:.long 0x00000003 338DBTR1_A: .long 0xFE800044 339DBTR1_D_533:.long 0x00000003 340DBTR1_D_400:.long 0x00000002 341DBTR2_A: .long 0xFE800048 342DBTR2_D: .long 0x00000000 343DBTR3_A: .long 0xFE800050 344DBTR3_D_533:.long 0x00000004 345DBTR3_D_400:.long 0x00000003 346 347DBTR4_A: .long 0xFE800054 348DBTR4_D_533:.long 0x00050004 349DBTR4_D_400:.long 0x00050003 350 351DBTR5_A: .long 0xFE800058 352DBTR5_D_533:.long 0x0000000F 353DBTR5_D_400:.long 0x0000000B 354 355DBTR6_A: .long 0xFE80005C 356DBTR6_D_533:.long 0x0000000B 357DBTR6_D_400:.long 0x00000008 358 359DBTR7_A: .long 0xFE800060 360DBTR7_D: .long 0x00000002 361 362DBTR8_A: .long 0xFE800064 363DBTR8_D_533:.long 0x0000000D 364DBTR8_D_400:.long 0x0000000A 365 366DBTR9_A: .long 0xFE800068 367DBTR9_D: .long 0x00000002 368 369DBTR10_A: .long 0xFE80006C 370DBTR10_D_533:.long 0x00000004 371DBTR10_D_400:.long 0x00000003 372 373DBTR11_A: .long 0xFE800070 374DBTR11_D: .long 0x00000008 375 376DBTR12_A: .long 0xFE800074 377DBTR12_D_533:.long 0x00000009 378DBTR12_D_400:.long 0x00000008 379 380DBTR13_A: .long 0xFE800078 381DBTR13_D_533:.long 0x00000022 382DBTR13_D_400:.long 0x0000001A 383 384DBTR14_A: .long 0xFE80007C 385DBTR14_D: .long 0x00070002 386 387DBTR15_A: .long 0xFE800080 388DBTR15_D: .long 0x00000003 389 390DBTR16_A: .long 0xFE800084 391DBTR16_D_533:.long 0x120A1001 392DBTR16_D_400:.long 0x12091001 393 394DBTR17_A: .long 0xFE800088 395DBTR17_D_533:.long 0x00040000 396DBTR17_D_400:.long 0x00030000 397 398DBTR18_A: .long 0xFE80008C 399DBTR18_D_533:.long 0x02010200 400DBTR18_D_400:.long 0x02000207 401 402DBBL_A: .long 0xFE8000B0 403DBBL_D: .long 0x00000000 404 405DBRNK0_A: .long 0xFE800100 406DBRNK0_D: .long 0x00000001 407 408DBCMD_A: .long 0xFE800018 409DBCMD_D0_533: .long 0x1100006B 410DBCMD_D0_400: .long 0x11000050 411DBCMD_D1: .long 0x0B000000 412DBCMD_D2: .long 0x2A004000 413DBCMD_D3: .long 0x2B006000 414DBCMD_D4: .long 0x29002044 415DBCMD_D5_533: .long 0x28000743 416DBCMD_D5_400: .long 0x28000533 417DBCMD_D6: .long 0x0B000000 418DBCMD_D7: .long 0x0C000000 419DBCMD_D8: .long 0x0C000000 420DBCMD_D9_533: .long 0x28000643 421DBCMD_D9_400: .long 0x28000433 422DBCMD_D10: .long 0x000000C8 423DBCMD_D11: .long 0x290023C4 424DBCMD_D12: .long 0x29002004 425 426DBRFCNF0_A: .long 0xFE8000E0 427DBRFCNF0_D: .long 0x000001FF 428DBRFCNF1_A: .long 0xFE8000E4 429DBRFCNF1_D_533: .long 0x00000805 430DBRFCNF1_D_400: .long 0x00000618 431 432DBRFCNF2_A: .long 0xFE8000E8 433DBRFCNF2_D: .long 0x00000000 434 435DBRFEN_A: .long 0xFE800014 436DBRFEN_D: .long 0x00000001 437 438DBACEN_A: .long 0xFE800010 439DBACEN_D: .long 0x00000001 440 441DBWAIT_A: .long 0xFE80001C 442SDRAM_A: .long 0x0C000000 443 444finish_init_sh7734: 445 write32 CCR_A, CCR_D 446 447 stc sr, r0 448 mov.l SR_MASK_D, r1 449 and r1, r0 450 ldc r0, sr 451 452 rts 453 nop 454 455 .align 2 456 457CCR_A: .long 0xFF00001C 458CCR_D: .long 0x0000090B 459SR_MASK_D: .long 0xEFFFFF0F 460