| Nobuhiro Iwamatsu | 113a37e | 2008-06-09 13:39:57 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 Renesas Solutions Corp. |
| 3 | * Copyright (C) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> |
| 4 | * Copyright (C) 2007 Kenati Technologies, Inc. |
| 5 | * |
| 6 | * board/sh7763rdp/lowlevel_init.S |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <config.h> |
| 25 | #include <version.h> |
| 26 | |
| 27 | #include <asm/processor.h> |
| 28 | |
| 29 | .global lowlevel_init |
| 30 | |
| 31 | .text |
| 32 | .align 2 |
| 33 | |
| 34 | lowlevel_init: |
| 35 | |
| 36 | mov.l WDTCSR_A, r1 /* Watchdog Control / Status Register */ |
| 37 | mov.l WDTCSR_D, r0 |
| 38 | mov.l r0, @r1 |
| 39 | |
| 40 | mov.l WDTST_A, r1 /* Watchdog Stop Time Register */ |
| 41 | mov.l WDTST_D, r0 |
| 42 | mov.l r0, @r1 |
| 43 | |
| 44 | mov.l WDTBST_A, r1 /* 0xFFCC0008 (Watchdog Base Stop Time Register */ |
| 45 | mov.l WDTBST_D, r0 |
| 46 | mov.l r0, @r1 |
| 47 | |
| 48 | mov.l CCR_A, r1 /* Address of Cache Control Register */ |
| 49 | mov.l CCR_CACHE_ICI_D, r0 /* Instruction Cache Invalidate */ |
| 50 | mov.l r0, @r1 |
| 51 | |
| 52 | mov.l MMUCR_A, r1 /* Address of MMU Control Register */ |
| 53 | mov.l MMU_CONTROL_TI_D, r0 /* TI == TLB Invalidate bit */ |
| 54 | mov.l r0, @r1 |
| 55 | |
| 56 | mov.l MSTPCR0_A, r1 /* Address of Power Control Register 0 */ |
| 57 | mov.l MSTPCR0_D, r0 |
| 58 | mov.l r0, @r1 |
| 59 | |
| 60 | mov.l MSTPCR1_A, r1 /*i Address of Power Control Register 1 */ |
| 61 | mov.l MSTPCR1_D, r0 |
| 62 | mov.l r0, @r1 |
| 63 | |
| 64 | mov.l RAMCR_A,r1 |
| 65 | mov.l RAMCR_D,r0 |
| 66 | mov.l r0, @r1 |
| 67 | |
| 68 | mov.l MMSELR_A,r1 |
| 69 | mov.l MMSELR_D,r0 |
| 70 | synco |
| 71 | mov.l r0, @r1 |
| 72 | |
| 73 | mov.l @r1,r2 /* execute two reads after setting MMSELR*/ |
| 74 | mov.l @r1,r2 |
| 75 | synco |
| 76 | |
| 77 | /* issue memory read */ |
| 78 | mov.l DDRSD_START_A,r1 /* memory address to read*/ |
| 79 | mov.l @r1,r0 |
| 80 | synco |
| 81 | |
| 82 | mov.l MIM8_A,r1 |
| 83 | mov.l MIM8_D,r0 |
| 84 | mov.l r0,@r1 |
| 85 | |
| 86 | mov.l MIMC_A,r1 |
| 87 | mov.l MIMC_D1,r0 |
| 88 | mov.l r0,@r1 |
| 89 | |
| 90 | mov.l STRC_A,r1 |
| 91 | mov.l STRC_D,r0 |
| 92 | mov.l r0,@r1 |
| 93 | |
| 94 | mov.l SDR4_A,r1 |
| 95 | mov.l SDR4_D,r0 |
| 96 | mov.l r0,@r1 |
| 97 | |
| 98 | mov.l MIMC_A,r1 |
| 99 | mov.l MIMC_D2,r0 |
| 100 | mov.l r0,@r1 |
| 101 | |
| 102 | nop |
| 103 | nop |
| 104 | nop |
| 105 | |
| 106 | mov.l SCR4_A,r1 |
| 107 | mov.l SCR4_D3,r0 |
| 108 | mov.l r0,@r1 |
| 109 | |
| 110 | mov.l SCR4_A,r1 |
| 111 | mov.l SCR4_D2,r0 |
| 112 | mov.l r0,@r1 |
| 113 | |
| 114 | mov.l SDMR02000_A,r1 |
| 115 | mov.l SDMR02000_D,r0 |
| 116 | mov.l r0,@r1 |
| 117 | |
| 118 | mov.l SDMR00B08_A,r1 |
| 119 | mov.l SDMR00B08_D,r0 |
| 120 | mov.l r0,@r1 |
| 121 | |
| 122 | mov.l SCR4_A,r1 |
| 123 | mov.l SCR4_D2,r0 |
| 124 | mov.l r0,@r1 |
| 125 | |
| 126 | mov.l SCR4_A,r1 |
| 127 | mov.l SCR4_D4,r0 |
| 128 | mov.l r0,@r1 |
| 129 | |
| 130 | nop |
| 131 | nop |
| 132 | nop |
| 133 | nop |
| 134 | |
| 135 | mov.l SCR4_A,r1 |
| 136 | mov.l SCR4_D4,r0 |
| 137 | mov.l r0,@r1 |
| 138 | |
| 139 | nop |
| 140 | nop |
| 141 | nop |
| 142 | nop |
| 143 | |
| 144 | mov.l SDMR00308_A,r1 |
| 145 | mov.l SDMR00308_D,r0 |
| 146 | mov.l r0,@r1 |
| 147 | |
| 148 | mov.l MIMC_A,r1 |
| 149 | mov.l MIMC_D3,r0 |
| 150 | mov.l r0,@r1 |
| 151 | |
| 152 | mov.l SCR4_A,r1 |
| 153 | mov.l SCR4_D1,r0 |
| 154 | mov.l DELAY60_D,r3 |
| 155 | |
| 156 | delay_loop_60: |
| 157 | mov.l r0,@r1 |
| 158 | dt r3 |
| 159 | bf delay_loop_60 |
| 160 | nop |
| 161 | |
| 162 | mov.l CCR_A, r1 /* Address of Cache Control Register */ |
| 163 | mov.l CCR_CACHE_D_2, r0 |
| 164 | mov.l r0, @r1 |
| 165 | |
| 166 | bsc_init: |
| 167 | mov.l BCR_A, r1 |
| 168 | mov.l BCR_D, r0 |
| 169 | mov.l r0, @r1 |
| 170 | |
| 171 | mov.l CS0BCR_A, r1 |
| 172 | mov.l CS0BCR_D, r0 |
| 173 | mov.l r0, @r1 |
| 174 | |
| 175 | mov.l CS1BCR_A,r1 |
| 176 | mov.l CS1BCR_D,r0 |
| 177 | mov.l r0,@r1 |
| 178 | |
| 179 | mov.l CS2BCR_A, r1 |
| 180 | mov.l CS2BCR_D, r0 |
| 181 | mov.l r0, @r1 |
| 182 | |
| 183 | mov.l CS4BCR_A, r1 |
| 184 | mov.l CS4BCR_D, r0 |
| 185 | mov.l r0, @r1 |
| 186 | |
| 187 | mov.l CS5BCR_A, r1 |
| 188 | mov.l CS5BCR_D, r0 |
| 189 | mov.l r0, @r1 |
| 190 | |
| 191 | mov.l CS6BCR_A, r1 |
| 192 | mov.l CS6BCR_D, r0 |
| 193 | mov.l r0, @r1 |
| 194 | |
| 195 | mov.l CS0WCR_A, r1 |
| 196 | mov.l CS0WCR_D, r0 |
| 197 | mov.l r0, @r1 |
| 198 | |
| 199 | mov.l CS1WCR_A, r1 |
| 200 | mov.l CS1WCR_D, r0 |
| 201 | mov.l r0, @r1 |
| 202 | |
| 203 | mov.l CS2WCR_A, r1 |
| 204 | mov.l CS2WCR_D, r0 |
| 205 | mov.l r0, @r1 |
| 206 | |
| 207 | mov.l CS4WCR_A, r1 |
| 208 | mov.l CS4WCR_D, r0 |
| 209 | mov.l r0, @r1 |
| 210 | |
| 211 | mov.l CS5WCR_A, r1 |
| 212 | mov.l CS5WCR_D, r0 |
| 213 | mov.l r0, @r1 |
| 214 | |
| 215 | mov.l CS6WCR_A, r1 |
| 216 | mov.l CS6WCR_D, r0 |
| 217 | mov.l r0, @r1 |
| 218 | |
| 219 | mov.l CS5PCR_A, r1 |
| 220 | mov.l CS5PCR_D, r0 |
| 221 | mov.l r0, @r1 |
| 222 | |
| 223 | mov.l CS6PCR_A, r1 |
| 224 | mov.l CS6PCR_D, r0 |
| 225 | mov.l r0, @r1 |
| 226 | |
| 227 | mov.l DELAY200_D,r3 |
| 228 | |
| 229 | delay_loop_200: |
| 230 | dt r3 |
| 231 | bf delay_loop_200 |
| 232 | nop |
| 233 | |
| 234 | mov.l PSEL0_A,r1 |
| 235 | mov.l PSEL0_D,r0 |
| 236 | mov.w r0,@r1 |
| 237 | |
| 238 | mov.l PSEL1_A,r1 |
| 239 | mov.l PSEL1_D,r0 |
| 240 | mov.w r0,@r1 |
| 241 | |
| 242 | mov.l ICR0_A,r1 |
| 243 | mov.l ICR0_D,r0 |
| 244 | mov.l r0,@r1 |
| 245 | |
| 246 | stc sr, r0 /* BL bit off(init=ON) */ |
| 247 | mov.l SR_MASK_D, r1 |
| 248 | and r1, r0 |
| 249 | ldc r0, sr |
| 250 | |
| 251 | rts |
| 252 | nop |
| 253 | |
| 254 | .align 2 |
| 255 | |
| 256 | DELAY60_D: .long 60 |
| 257 | DELAY200_D: .long 17800 |
| 258 | |
| 259 | CCR_A: .long 0xFF00001C |
| 260 | MMUCR_A: .long 0xFF000010 |
| 261 | RAMCR_A: .long 0xFF000074 |
| 262 | |
| 263 | /* Low power mode control */ |
| 264 | MSTPCR0_A: .long 0xFFC80030 |
| 265 | MSTPCR1_A: .long 0xFFC80038 |
| 266 | |
| 267 | /* RWBT */ |
| 268 | WDTST_A: .long 0xFFCC0000 |
| 269 | WDTCSR_A: .long 0xFFCC0004 |
| 270 | WDTBST_A: .long 0xFFCC0008 |
| 271 | |
| 272 | /* BSC */ |
| 273 | MMSELR_A: .long 0xFE600020 |
| 274 | BCR_A: .long 0xFF801000 |
| 275 | CS0BCR_A: .long 0xFF802000 |
| 276 | CS1BCR_A: .long 0xFF802010 |
| 277 | CS2BCR_A: .long 0xFF802020 |
| 278 | CS4BCR_A: .long 0xFF802040 |
| 279 | CS5BCR_A: .long 0xFF802050 |
| 280 | CS6BCR_A: .long 0xFF802060 |
| 281 | CS0WCR_A: .long 0xFF802008 |
| 282 | CS1WCR_A: .long 0xFF802018 |
| 283 | CS2WCR_A: .long 0xFF802028 |
| 284 | CS4WCR_A: .long 0xFF802048 |
| 285 | CS5WCR_A: .long 0xFF802058 |
| 286 | CS6WCR_A: .long 0xFF802068 |
| 287 | CS5PCR_A: .long 0xFF802070 |
| 288 | CS6PCR_A: .long 0xFF802080 |
| 289 | DDRSD_START_A: .long 0xAC000000 |
| 290 | |
| 291 | /* INTC */ |
| 292 | ICR0_A: .long 0xFFD00000 |
| 293 | |
| 294 | /* DDR I/F */ |
| 295 | MIM8_A: .long 0xFE800008 |
| 296 | MIMC_A: .long 0xFE80000C |
| 297 | SCR4_A: .long 0xFE800014 |
| 298 | STRC_A: .long 0xFE80001C |
| 299 | SDR4_A: .long 0xFE800034 |
| 300 | SDMR00308_A: .long 0xFE900308 |
| 301 | SDMR00B08_A: .long 0xFE900B08 |
| 302 | SDMR02000_A: .long 0xFE902000 |
| 303 | |
| 304 | /* GPIO */ |
| 305 | PSEL0_A: .long 0xFFEF0070 |
| 306 | PSEL1_A: .long 0xFFEF0072 |
| 307 | |
| 308 | CCR_CACHE_ICI_D:.long 0x00000800 |
| 309 | CCR_CACHE_D_2: .long 0x00000103 |
| 310 | MMU_CONTROL_TI_D:.long 0x00000004 |
| 311 | RAMCR_D: .long 0x00000200 |
| 312 | MSTPCR0_D: .long 0x00000000 |
| 313 | MSTPCR1_D: .long 0x00000000 |
| 314 | |
| 315 | MMSELR_D: .long 0xa5a50000 |
| 316 | BCR_D: .long 0x00000000 |
| 317 | CS0BCR_D: .long 0x77777770 |
| 318 | CS1BCR_D: .long 0x77777670 |
| 319 | CS2BCR_D: .long 0x77777670 |
| 320 | CS4BCR_D: .long 0x77777670 |
| 321 | CS5BCR_D: .long 0x77777670 |
| 322 | CS6BCR_D: .long 0x77777670 |
| 323 | CS0WCR_D: .long 0x7777770F |
| 324 | CS1WCR_D: .long 0x22000002 |
| 325 | CS2WCR_D: .long 0x7777770F |
| 326 | CS4WCR_D: .long 0x7777770F |
| 327 | CS5WCR_D: .long 0x7777770F |
| 328 | CS6WCR_D: .long 0x7777770F |
| 329 | CS5PCR_D: .long 0x77000000 |
| 330 | CS6PCR_D: .long 0x77000000 |
| 331 | ICR0_D: .long 0x00E00000 |
| 332 | MIM8_D: .long 0x00000000 |
| 333 | MIMC_D1: .long 0x01d10008 |
| 334 | MIMC_D2: .long 0x01d10009 |
| 335 | MIMC_D3: .long 0x01d10209 |
| 336 | SCR4_D1: .long 0x00000001 |
| 337 | SCR4_D2: .long 0x00000002 |
| 338 | SCR4_D3: .long 0x00000003 |
| 339 | SCR4_D4: .long 0x00000004 |
| 340 | STRC_D: .long 0x000f3980 |
| 341 | SDR4_D: .long 0x00000300 |
| 342 | SDMR00308_D: .long 0x00000000 |
| 343 | SDMR00B08_D: .long 0x00000000 |
| 344 | SDMR02000_D: .long 0x00000000 |
| 345 | PSEL0_D: .long 0x00000001 |
| 346 | PSEL1_D: .long 0x00000244 |
| 347 | SR_MASK_D: .long 0xEFFFFF0F |
| 348 | WDTST_D: .long 0x5A000FFF |
| 349 | WDTCSR_D: .long 0xA5000000 |
| 350 | WDTBST_D: .long 0x55000000 |