Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 1 | /* prom.c - emulates a sparc v0 PROM for the linux kernel. |
| 2 | * |
| 3 | * Copyright (C) 2003 Konrad Eisele <eiselekd@web.de> |
| 4 | * Copyright (C) 2004 Stefan Holst <mail@s-holst.de> |
| 5 | * Copyright (C) 2007 Daniel Hellstrom <daniel@gaisler.com> |
| 6 | * |
Wolfgang Denk | d79de1d | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 7 | * SPDX-License-Identifier: GPL-2.0+ |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 8 | */ |
| 9 | |
| 10 | #include <common.h> |
| 11 | #include <asm/prom.h> |
| 12 | #include <asm/machines.h> |
| 13 | #include <asm/srmmu.h> |
| 14 | #include <asm/processor.h> |
| 15 | #include <asm/irq.h> |
| 16 | #include <asm/leon.h> |
| 17 | |
| 18 | #include <config.h> |
| 19 | /* |
| 20 | #define PRINT_ROM_VEC |
| 21 | */ |
| 22 | extern struct linux_romvec *kernel_arg_promvec; |
| 23 | |
| 24 | #define PROM_PGT __attribute__ ((__section__ (".prom.pgt"))) |
| 25 | #define PROM_TEXT __attribute__ ((__section__ (".prom.text"))) |
| 26 | #define PROM_DATA __attribute__ ((__section__ (".prom.data"))) |
| 27 | |
| 28 | /* for __va */ |
| 29 | extern int __prom_start; |
| 30 | #define PAGE_OFFSET 0xf0000000 |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 31 | #define phys_base CONFIG_SYS_SDRAM_BASE |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 32 | #define PROM_OFFS 8192 |
| 33 | #define PROM_SIZE_MASK (PROM_OFFS-1) |
| 34 | #define __va(x) ( \ |
| 35 | (void *)( ((unsigned long)(x))-PROM_OFFS+ \ |
Wolfgang Denk | 0708bc6 | 2010-10-07 21:51:12 +0200 | [diff] [blame] | 36 | (CONFIG_SYS_PROM_OFFSET-phys_base)+PAGE_OFFSET-CONFIG_SYS_TEXT_BASE ) \ |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 37 | ) |
Wolfgang Denk | 0708bc6 | 2010-10-07 21:51:12 +0200 | [diff] [blame] | 38 | #define __phy(x) ((void *)(((unsigned long)(x))-PROM_OFFS+CONFIG_SYS_PROM_OFFSET-CONFIG_SYS_TEXT_BASE)) |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 39 | |
| 40 | struct property { |
| 41 | char *name; |
| 42 | char *value; |
| 43 | int length; |
| 44 | }; |
| 45 | |
| 46 | struct node { |
| 47 | int level; |
| 48 | struct property *properties; |
| 49 | }; |
| 50 | |
| 51 | static void leon_reboot(char *bcommand); |
| 52 | static void leon_halt(void); |
| 53 | static int leon_nbputchar(int c); |
| 54 | static int leon_nbgetchar(void); |
| 55 | |
| 56 | static int no_nextnode(int node); |
| 57 | static int no_child(int node); |
| 58 | static int no_proplen(int node, char *name); |
| 59 | static int no_getprop(int node, char *name, char *value); |
| 60 | static int no_setprop(int node, char *name, char *value, int len); |
| 61 | static char *no_nextprop(int node, char *name); |
| 62 | |
| 63 | static struct property PROM_TEXT *find_property(int node, char *name); |
| 64 | static int PROM_TEXT leon_strcmp(const char *s1, const char *s2); |
| 65 | static void *PROM_TEXT leon_memcpy(void *dest, const void *src, size_t n); |
| 66 | static void PROM_TEXT leon_reboot_physical(char *bcommand); |
| 67 | |
| 68 | void __inline__ leon_flush_cache_all(void) |
| 69 | { |
| 70 | __asm__ __volatile__(" flush "); |
| 71 | __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"::"i"(ASI_DFLUSH):"memory"); |
| 72 | } |
| 73 | |
| 74 | void __inline__ leon_flush_tlb_all(void) |
| 75 | { |
| 76 | leon_flush_cache_all(); |
| 77 | __asm__ __volatile__("sta %%g0, [%0] %1\n\t"::"r"(0x400), |
| 78 | "i"(ASI_MMUFLUSH):"memory"); |
| 79 | } |
| 80 | |
| 81 | typedef struct { |
| 82 | unsigned int ctx_table[256]; |
| 83 | unsigned int pgd_table[256]; |
| 84 | } sparc_srmmu_setup; |
| 85 | |
| 86 | sparc_srmmu_setup srmmu_tables PROM_PGT = { |
| 87 | {0}, |
| 88 | {0x1e, |
| 89 | 0x10001e, |
| 90 | 0x20001e, |
| 91 | 0x30001e, |
| 92 | 0x40001e, |
| 93 | 0x50001e, |
| 94 | 0x60001e, |
| 95 | 0x70001e, |
| 96 | 0x80001e, |
| 97 | 0x90001e, |
| 98 | 0xa0001e, |
| 99 | 0xb0001e, |
| 100 | 0xc0001e, |
| 101 | 0xd0001e, |
| 102 | 0xe0001e, |
| 103 | 0xf0001e, |
| 104 | 0x100001e, |
| 105 | 0x110001e, |
| 106 | 0x120001e, |
| 107 | 0x130001e, |
| 108 | 0x140001e, |
| 109 | 0x150001e, |
| 110 | 0x160001e, |
| 111 | 0x170001e, |
| 112 | 0x180001e, |
| 113 | 0x190001e, |
| 114 | 0x1a0001e, |
| 115 | 0x1b0001e, |
| 116 | 0x1c0001e, |
| 117 | 0x1d0001e, |
| 118 | 0x1e0001e, |
| 119 | 0x1f0001e, |
| 120 | 0x200001e, |
| 121 | 0x210001e, |
| 122 | 0x220001e, |
| 123 | 0x230001e, |
| 124 | 0x240001e, |
| 125 | 0x250001e, |
| 126 | 0x260001e, |
| 127 | 0x270001e, |
| 128 | 0x280001e, |
| 129 | 0x290001e, |
| 130 | 0x2a0001e, |
| 131 | 0x2b0001e, |
| 132 | 0x2c0001e, |
| 133 | 0x2d0001e, |
| 134 | 0x2e0001e, |
| 135 | 0x2f0001e, |
| 136 | 0x300001e, |
| 137 | 0x310001e, |
| 138 | 0x320001e, |
| 139 | 0x330001e, |
| 140 | 0x340001e, |
| 141 | 0x350001e, |
| 142 | 0x360001e, |
| 143 | 0x370001e, |
| 144 | 0x380001e, |
| 145 | 0x390001e, |
| 146 | 0x3a0001e, |
| 147 | 0x3b0001e, |
| 148 | 0x3c0001e, |
| 149 | 0x3d0001e, |
| 150 | 0x3e0001e, |
| 151 | 0x3f0001e, |
| 152 | 0x400001e, |
| 153 | 0x410001e, |
| 154 | 0x420001e, |
| 155 | 0x430001e, |
| 156 | 0x440001e, |
| 157 | 0x450001e, |
| 158 | 0x460001e, |
| 159 | 0x470001e, |
| 160 | 0x480001e, |
| 161 | 0x490001e, |
| 162 | 0x4a0001e, |
| 163 | 0x4b0001e, |
| 164 | 0x4c0001e, |
| 165 | 0x4d0001e, |
| 166 | 0x4e0001e, |
| 167 | 0x4f0001e, |
| 168 | 0x500001e, |
| 169 | 0x510001e, |
| 170 | 0x520001e, |
| 171 | 0x530001e, |
| 172 | 0x540001e, |
| 173 | 0x550001e, |
| 174 | 0x560001e, |
| 175 | 0x570001e, |
| 176 | 0x580001e, |
| 177 | 0x590001e, |
| 178 | 0x5a0001e, |
| 179 | 0x5b0001e, |
| 180 | 0x5c0001e, |
| 181 | 0x5d0001e, |
| 182 | 0x5e0001e, |
| 183 | 0x5f0001e, |
| 184 | 0x600001e, |
| 185 | 0x610001e, |
| 186 | 0x620001e, |
| 187 | 0x630001e, |
| 188 | 0x640001e, |
| 189 | 0x650001e, |
| 190 | 0x660001e, |
| 191 | 0x670001e, |
| 192 | 0x680001e, |
| 193 | 0x690001e, |
| 194 | 0x6a0001e, |
| 195 | 0x6b0001e, |
| 196 | 0x6c0001e, |
| 197 | 0x6d0001e, |
| 198 | 0x6e0001e, |
| 199 | 0x6f0001e, |
| 200 | 0x700001e, |
| 201 | 0x710001e, |
| 202 | 0x720001e, |
| 203 | 0x730001e, |
| 204 | 0x740001e, |
| 205 | 0x750001e, |
| 206 | 0x760001e, |
| 207 | 0x770001e, |
| 208 | 0x780001e, |
| 209 | 0x790001e, |
| 210 | 0x7a0001e, |
| 211 | 0x7b0001e, |
| 212 | 0x7c0001e, |
| 213 | 0x7d0001e, |
| 214 | 0x7e0001e, |
| 215 | 0x7f0001e, |
| 216 | 0x800001e, |
| 217 | 0x810001e, |
| 218 | 0x820001e, |
| 219 | 0x830001e, |
| 220 | 0x840001e, |
| 221 | 0x850001e, |
| 222 | 0x860001e, |
| 223 | 0x870001e, |
| 224 | 0x880001e, |
| 225 | 0x890001e, |
| 226 | 0x8a0001e, |
| 227 | 0x8b0001e, |
| 228 | 0x8c0001e, |
| 229 | 0x8d0001e, |
| 230 | 0x8e0001e, |
| 231 | 0x8f0001e, |
| 232 | 0x900001e, |
| 233 | 0x910001e, |
| 234 | 0x920001e, |
| 235 | 0x930001e, |
| 236 | 0x940001e, |
| 237 | 0x950001e, |
| 238 | 0x960001e, |
| 239 | 0x970001e, |
| 240 | 0x980001e, |
| 241 | 0x990001e, |
| 242 | 0x9a0001e, |
| 243 | 0x9b0001e, |
| 244 | 0x9c0001e, |
| 245 | 0x9d0001e, |
| 246 | 0x9e0001e, |
| 247 | 0x9f0001e, |
| 248 | 0xa00001e, |
| 249 | 0xa10001e, |
| 250 | 0xa20001e, |
| 251 | 0xa30001e, |
| 252 | 0xa40001e, |
| 253 | 0xa50001e, |
| 254 | 0xa60001e, |
| 255 | 0xa70001e, |
| 256 | 0xa80001e, |
| 257 | 0xa90001e, |
| 258 | 0xaa0001e, |
| 259 | 0xab0001e, |
| 260 | 0xac0001e, |
| 261 | 0xad0001e, |
| 262 | 0xae0001e, |
| 263 | 0xaf0001e, |
| 264 | 0xb00001e, |
| 265 | 0xb10001e, |
| 266 | 0xb20001e, |
| 267 | 0xb30001e, |
| 268 | 0xb40001e, |
| 269 | 0xb50001e, |
| 270 | 0xb60001e, |
| 271 | 0xb70001e, |
| 272 | 0xb80001e, |
| 273 | 0xb90001e, |
| 274 | 0xba0001e, |
| 275 | 0xbb0001e, |
| 276 | 0xbc0001e, |
| 277 | 0xbd0001e, |
| 278 | 0xbe0001e, |
| 279 | 0xbf0001e, |
| 280 | 0xc00001e, |
| 281 | 0xc10001e, |
| 282 | 0xc20001e, |
| 283 | 0xc30001e, |
| 284 | 0xc40001e, |
| 285 | 0xc50001e, |
| 286 | 0xc60001e, |
| 287 | 0xc70001e, |
| 288 | 0xc80001e, |
| 289 | 0xc90001e, |
| 290 | 0xca0001e, |
| 291 | 0xcb0001e, |
| 292 | 0xcc0001e, |
| 293 | 0xcd0001e, |
| 294 | 0xce0001e, |
| 295 | 0xcf0001e, |
| 296 | 0xd00001e, |
| 297 | 0xd10001e, |
| 298 | 0xd20001e, |
| 299 | 0xd30001e, |
| 300 | 0xd40001e, |
| 301 | 0xd50001e, |
| 302 | 0xd60001e, |
| 303 | 0xd70001e, |
| 304 | 0xd80001e, |
| 305 | 0xd90001e, |
| 306 | 0xda0001e, |
| 307 | 0xdb0001e, |
| 308 | 0xdc0001e, |
| 309 | 0xdd0001e, |
| 310 | 0xde0001e, |
| 311 | 0xdf0001e, |
| 312 | 0xe00001e, |
| 313 | 0xe10001e, |
| 314 | 0xe20001e, |
| 315 | 0xe30001e, |
| 316 | 0xe40001e, |
| 317 | 0xe50001e, |
| 318 | 0xe60001e, |
| 319 | 0xe70001e, |
| 320 | 0xe80001e, |
| 321 | 0xe90001e, |
| 322 | 0xea0001e, |
| 323 | 0xeb0001e, |
| 324 | 0xec0001e, |
| 325 | 0xed0001e, |
| 326 | 0xee0001e, |
| 327 | 0xef0001e, |
| 328 | 0x400001e /* default */ |
| 329 | } |
| 330 | }; |
| 331 | |
| 332 | /* a self contained prom info structure */ |
| 333 | struct leon_reloc_func { |
| 334 | struct property *(*find_property) (int node, char *name); |
| 335 | int (*strcmp) (char *s1, char *s2); |
| 336 | void *(*memcpy) (void *dest, const void *src, size_t n); |
| 337 | void (*reboot_physical) (char *cmd); |
| 338 | }; |
| 339 | |
| 340 | struct leon_prom_info { |
| 341 | int freq_khz; |
| 342 | int leon_nctx; |
| 343 | int mids[32]; |
| 344 | int baudrates[2]; |
| 345 | struct leon_reloc_func reloc_funcs; |
| 346 | struct property root_properties[4]; |
| 347 | struct property cpu_properties[7]; |
| 348 | #undef CPUENTRY |
| 349 | #define CPUENTRY(idx) struct property cpu_properties##idx[4] |
| 350 | CPUENTRY(1); |
| 351 | CPUENTRY(2); |
| 352 | CPUENTRY(3); |
| 353 | CPUENTRY(4); |
| 354 | CPUENTRY(5); |
| 355 | CPUENTRY(6); |
| 356 | CPUENTRY(7); |
| 357 | CPUENTRY(8); |
| 358 | CPUENTRY(9); |
| 359 | CPUENTRY(10); |
| 360 | CPUENTRY(11); |
| 361 | CPUENTRY(12); |
| 362 | CPUENTRY(13); |
| 363 | CPUENTRY(14); |
| 364 | CPUENTRY(15); |
| 365 | CPUENTRY(16); |
| 366 | CPUENTRY(17); |
| 367 | CPUENTRY(18); |
| 368 | CPUENTRY(19); |
| 369 | CPUENTRY(20); |
| 370 | CPUENTRY(21); |
| 371 | CPUENTRY(22); |
| 372 | CPUENTRY(23); |
| 373 | CPUENTRY(24); |
| 374 | CPUENTRY(25); |
| 375 | CPUENTRY(26); |
| 376 | CPUENTRY(27); |
| 377 | CPUENTRY(28); |
| 378 | CPUENTRY(29); |
| 379 | CPUENTRY(30); |
| 380 | CPUENTRY(31); |
| 381 | struct idprom idprom; |
| 382 | struct linux_nodeops nodeops; |
| 383 | struct linux_mlist_v0 *totphys_p; |
| 384 | struct linux_mlist_v0 totphys; |
| 385 | struct linux_mlist_v0 *avail_p; |
| 386 | struct linux_mlist_v0 avail; |
| 387 | struct linux_mlist_v0 *prommap_p; |
| 388 | void (*synchook) (void); |
| 389 | struct linux_arguments_v0 *bootargs_p; |
| 390 | struct linux_arguments_v0 bootargs; |
| 391 | struct linux_romvec romvec; |
| 392 | struct node nodes[35]; |
| 393 | char s_device_type[12]; |
| 394 | char s_cpu[4]; |
| 395 | char s_mid[4]; |
| 396 | char s_idprom[7]; |
| 397 | char s_compatability[14]; |
| 398 | char s_leon2[6]; |
| 399 | char s_mmu_nctx[9]; |
| 400 | char s_frequency[16]; |
| 401 | char s_uart1_baud[11]; |
| 402 | char s_uart2_baud[11]; |
| 403 | char arg[256]; |
| 404 | }; |
| 405 | |
| 406 | /* static prom info */ |
| 407 | static struct leon_prom_info PROM_DATA spi = { |
| 408 | CONFIG_SYS_CLK_FREQ / 1000, |
| 409 | 256, |
| 410 | { |
| 411 | #undef CPUENTRY |
| 412 | #define CPUENTRY(idx) idx |
| 413 | CPUENTRY(0), |
| 414 | CPUENTRY(1), |
| 415 | CPUENTRY(2), |
| 416 | CPUENTRY(3), |
| 417 | CPUENTRY(4), |
| 418 | CPUENTRY(5), |
| 419 | CPUENTRY(6), |
| 420 | CPUENTRY(7), |
| 421 | CPUENTRY(8), |
| 422 | CPUENTRY(9), |
| 423 | CPUENTRY(10), |
| 424 | CPUENTRY(11), |
| 425 | CPUENTRY(12), |
| 426 | CPUENTRY(13), |
| 427 | CPUENTRY(14), |
| 428 | CPUENTRY(15), |
| 429 | CPUENTRY(16), |
| 430 | CPUENTRY(17), |
| 431 | CPUENTRY(18), |
| 432 | CPUENTRY(19), |
| 433 | CPUENTRY(20), |
| 434 | CPUENTRY(21), |
| 435 | CPUENTRY(22), |
| 436 | CPUENTRY(23), |
| 437 | CPUENTRY(24), |
| 438 | CPUENTRY(25), |
| 439 | CPUENTRY(26), |
| 440 | CPUENTRY(27), |
| 441 | CPUENTRY(28), |
| 442 | CPUENTRY(29), |
| 443 | CPUENTRY(30), |
| 444 | 31}, |
| 445 | {38400, 38400}, |
| 446 | { |
| 447 | __va(find_property), |
| 448 | __va(leon_strcmp), |
| 449 | __va(leon_memcpy), |
| 450 | __phy(leon_reboot_physical), |
| 451 | }, |
| 452 | { |
| 453 | {__va(spi.s_device_type), __va(spi.s_idprom), 4}, |
| 454 | {__va(spi.s_idprom), (char *)__va(&spi.idprom), sizeof(struct idprom)}, |
| 455 | {__va(spi.s_compatability), __va(spi.s_leon2), 5}, |
| 456 | {NULL, NULL, -1} |
| 457 | }, |
| 458 | { |
| 459 | {__va(spi.s_device_type), __va(spi.s_cpu), 4}, |
| 460 | {__va(spi.s_mid), __va(&spi.mids[0]), 4}, |
| 461 | {__va(spi.s_mmu_nctx), (char *)__va(&spi.leon_nctx), 4}, |
| 462 | {__va(spi.s_frequency), (char *)__va(&spi.freq_khz), 4}, |
| 463 | {__va(spi.s_uart1_baud), (char *)__va(&spi.baudrates[0]), 4}, |
| 464 | {__va(spi.s_uart2_baud), (char *)__va(&spi.baudrates[1]), 4}, |
| 465 | {NULL, NULL, -1} |
| 466 | }, |
| 467 | #undef CPUENTRY |
| 468 | #define CPUENTRY(idx) \ |
| 469 | { /* cpu_properties */ \ |
| 470 | {__va(spi.s_device_type), __va(spi.s_cpu), 4}, \ |
| 471 | {__va(spi.s_mid), __va(&spi.mids[idx]), 4}, \ |
| 472 | {__va(spi.s_frequency), (char *)__va(&spi.freq_khz), 4}, \ |
| 473 | {NULL, NULL, -1} \ |
| 474 | } |
| 475 | CPUENTRY(1), |
| 476 | CPUENTRY(2), |
| 477 | CPUENTRY(3), |
| 478 | CPUENTRY(4), |
| 479 | CPUENTRY(5), |
| 480 | CPUENTRY(6), |
| 481 | CPUENTRY(7), |
| 482 | CPUENTRY(8), |
| 483 | CPUENTRY(9), |
| 484 | CPUENTRY(10), |
| 485 | CPUENTRY(11), |
| 486 | CPUENTRY(12), |
| 487 | CPUENTRY(13), |
| 488 | CPUENTRY(14), |
| 489 | CPUENTRY(15), |
| 490 | CPUENTRY(16), |
| 491 | CPUENTRY(17), |
| 492 | CPUENTRY(18), |
| 493 | CPUENTRY(19), |
| 494 | CPUENTRY(20), |
| 495 | CPUENTRY(21), |
| 496 | CPUENTRY(22), |
| 497 | CPUENTRY(23), |
| 498 | CPUENTRY(24), |
| 499 | CPUENTRY(25), |
| 500 | CPUENTRY(26), |
| 501 | CPUENTRY(27), |
| 502 | CPUENTRY(28), |
| 503 | CPUENTRY(29), |
| 504 | CPUENTRY(30), |
| 505 | CPUENTRY(31), |
| 506 | { |
| 507 | 0x01, /* format */ |
| 508 | M_LEON2 | M_LEON2_SOC, /* machine type */ |
| 509 | {0, 0, 0, 0, 0, 0}, /* eth */ |
| 510 | 0, /* date */ |
| 511 | 0, /* sernum */ |
| 512 | 0, /* checksum */ |
| 513 | {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* reserved */ |
| 514 | }, |
| 515 | { |
| 516 | __va(no_nextnode), |
| 517 | __va(no_child), |
| 518 | __va(no_proplen), |
| 519 | __va(no_getprop), |
| 520 | __va(no_setprop), |
| 521 | __va(no_nextprop) |
| 522 | }, |
| 523 | __va(&spi.totphys), |
| 524 | { |
| 525 | NULL, |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 526 | (char *)CONFIG_SYS_SDRAM_BASE, |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 527 | 0, |
| 528 | }, |
| 529 | __va(&spi.avail), |
| 530 | { |
| 531 | NULL, |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 532 | (char *)CONFIG_SYS_SDRAM_BASE, |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 533 | 0, |
| 534 | }, |
| 535 | NULL, /* prommap_p */ |
| 536 | NULL, |
| 537 | __va(&spi.bootargs), |
| 538 | { |
| 539 | {NULL, __va(spi.arg), NULL /*... */ }, |
| 540 | /*... */ |
| 541 | }, |
| 542 | { |
| 543 | 0, |
| 544 | 0, /* sun4c v0 prom */ |
| 545 | 0, 0, |
| 546 | {__va(&spi.totphys_p), __va(&spi.prommap_p), __va(&spi.avail_p)}, |
| 547 | __va(&spi.nodeops), |
| 548 | NULL, {NULL /* ... */ }, |
| 549 | NULL, NULL, |
| 550 | NULL, NULL, /* pv_getchar, pv_putchar */ |
| 551 | __va(leon_nbgetchar), __va(leon_nbputchar), |
| 552 | NULL, |
| 553 | __va(leon_reboot), |
| 554 | NULL, |
| 555 | NULL, |
| 556 | NULL, |
| 557 | __va(leon_halt), |
| 558 | __va(&spi.synchook), |
| 559 | {NULL}, |
| 560 | __va(&spi.bootargs_p) |
| 561 | /*... */ |
| 562 | }, |
| 563 | { |
| 564 | {0, __va(spi.root_properties + 3) /* NULL, NULL, -1 */ }, |
| 565 | {0, __va(spi.root_properties)}, |
| 566 | /* cpu 0, must be spi.nodes[2] see leon_prom_init() */ |
| 567 | {1, __va(spi.cpu_properties)}, |
| 568 | |
| 569 | #undef CPUENTRY |
| 570 | #define CPUENTRY(idx) \ |
| 571 | {1, __va(spi.cpu_properties##idx) } /* cpu <idx> */ |
| 572 | CPUENTRY(1), |
| 573 | CPUENTRY(2), |
| 574 | CPUENTRY(3), |
| 575 | CPUENTRY(4), |
| 576 | CPUENTRY(5), |
| 577 | CPUENTRY(6), |
| 578 | CPUENTRY(7), |
| 579 | CPUENTRY(8), |
| 580 | CPUENTRY(9), |
| 581 | CPUENTRY(10), |
| 582 | CPUENTRY(11), |
| 583 | CPUENTRY(12), |
| 584 | CPUENTRY(13), |
| 585 | CPUENTRY(14), |
| 586 | CPUENTRY(15), |
| 587 | CPUENTRY(16), |
| 588 | CPUENTRY(17), |
| 589 | CPUENTRY(18), |
| 590 | CPUENTRY(19), |
| 591 | CPUENTRY(20), |
| 592 | CPUENTRY(21), |
| 593 | CPUENTRY(22), |
| 594 | CPUENTRY(23), |
| 595 | CPUENTRY(24), |
| 596 | CPUENTRY(25), |
| 597 | CPUENTRY(26), |
| 598 | CPUENTRY(27), |
| 599 | CPUENTRY(28), |
| 600 | CPUENTRY(29), |
| 601 | CPUENTRY(30), |
| 602 | CPUENTRY(31), |
| 603 | {-1, __va(spi.root_properties + 3) /* NULL, NULL, -1 */ } |
| 604 | }, |
| 605 | "device_type", |
| 606 | "cpu", |
| 607 | "mid", |
| 608 | "idprom", |
| 609 | "compatability", |
| 610 | "leon2", |
| 611 | "mmu-nctx", |
| 612 | "clock-frequency", |
| 613 | "uart1_baud", |
| 614 | "uart2_baud", |
| 615 | CONFIG_DEFAULT_KERNEL_COMMAND_LINE |
| 616 | }; |
| 617 | |
| 618 | /* from arch/sparc/kernel/setup.c */ |
| 619 | #define RAMDISK_LOAD_FLAG 0x4000 |
| 620 | extern unsigned short root_flags; |
| 621 | extern unsigned short root_dev; |
| 622 | extern unsigned short ram_flags; |
| 623 | extern unsigned int sparc_ramdisk_image; |
| 624 | extern unsigned int sparc_ramdisk_size; |
| 625 | extern int root_mountflags; |
| 626 | |
| 627 | extern char initrd_end, initrd_start; |
| 628 | |
| 629 | /* Reboot the CPU = jump to beginning of flash again. |
| 630 | * |
| 631 | * Make sure that all function are inlined here. |
| 632 | */ |
| 633 | static void PROM_TEXT leon_reboot(char *bcommand) |
| 634 | { |
| 635 | register char *arg = bcommand; |
| 636 | void __attribute__ ((noreturn)) (*reboot_physical) (char *cmd); |
| 637 | |
| 638 | /* get physical address */ |
| 639 | struct leon_prom_info *pspi = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 640 | (void *)(CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables)); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 641 | |
| 642 | unsigned int *srmmu_ctx_table; |
| 643 | |
| 644 | /* Turn of Interrupts */ |
| 645 | set_pil(0xf); |
| 646 | |
| 647 | /* Set kernel's context, context zero */ |
| 648 | srmmu_set_context(0); |
| 649 | |
| 650 | /* Get physical address of the MMU shutdown routine */ |
| 651 | reboot_physical = (void *) |
| 652 | SPARC_BYPASS_READ(&pspi->reloc_funcs.reboot_physical); |
| 653 | |
| 654 | /* Now that we know the physical address of the function |
| 655 | * we can make the MMU allow jumping to it. |
| 656 | */ |
| 657 | srmmu_ctx_table = (unsigned int *)srmmu_get_ctable_ptr(); |
| 658 | |
| 659 | srmmu_ctx_table = (unsigned int *)SPARC_BYPASS_READ(srmmu_ctx_table); |
| 660 | |
| 661 | /* get physical address of kernel's context table (assume ptd) */ |
| 662 | srmmu_ctx_table = (unsigned int *) |
| 663 | (((unsigned int)srmmu_ctx_table & 0xfffffffc) << 4); |
| 664 | |
| 665 | /* enable access to physical address of MMU shutdown function */ |
| 666 | SPARC_BYPASS_WRITE(&srmmu_ctx_table |
| 667 | [((unsigned int)reboot_physical) >> 24], |
| 668 | (((unsigned int)reboot_physical & 0xff000000) >> 4) | |
| 669 | 0x1e); |
| 670 | |
| 671 | /* flush TLB cache */ |
| 672 | leon_flush_tlb_all(); |
| 673 | |
| 674 | /* flash instruction & data cache */ |
| 675 | sparc_icache_flush_all(); |
| 676 | sparc_dcache_flush_all(); |
| 677 | |
| 678 | /* jump to physical address function |
| 679 | * so that when the MMU is disabled |
| 680 | * we can continue to execute |
| 681 | */ |
| 682 | reboot_physical(arg); |
| 683 | } |
| 684 | |
| 685 | static void PROM_TEXT leon_reboot_physical(char *bcommand) |
| 686 | { |
| 687 | void __attribute__ ((noreturn)) (*reset) (void); |
| 688 | |
| 689 | /* Turn off MMU */ |
| 690 | srmmu_set_mmureg(0); |
| 691 | |
| 692 | /* Hardcoded start address */ |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 693 | reset = CONFIG_SYS_MONITOR_BASE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 694 | |
| 695 | /* flush data cache */ |
| 696 | sparc_dcache_flush_all(); |
| 697 | |
| 698 | /* flush instruction cache */ |
| 699 | sparc_icache_flush_all(); |
| 700 | |
| 701 | /* Jump to start in Flash */ |
| 702 | reset(); |
| 703 | } |
| 704 | |
| 705 | static void PROM_TEXT leon_halt(void) |
| 706 | { |
| 707 | while (1) ; |
| 708 | } |
| 709 | |
| 710 | /* get single char, don't care for blocking*/ |
| 711 | static int PROM_TEXT leon_nbgetchar(void) |
| 712 | { |
| 713 | return -1; |
| 714 | } |
| 715 | |
| 716 | /* put single char, don't care for blocking*/ |
| 717 | static int PROM_TEXT leon_nbputchar(int c) |
| 718 | { |
| 719 | LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS; |
| 720 | |
| 721 | /***** put char in buffer... *********** |
| 722 | * Make sure all functions are inline! * |
| 723 | ***************************************/ |
| 724 | |
| 725 | /* Wait for last character to go. */ |
| 726 | while (!(SPARC_BYPASS_READ(&leon2->UART_Status_1) |
| 727 | & LEON2_UART_STAT_THE)) ; |
| 728 | |
| 729 | /* Send data */ |
| 730 | SPARC_BYPASS_WRITE(&leon2->UART_Channel_1, c); |
| 731 | |
| 732 | /* Wait for data to be sent */ |
| 733 | while (!(SPARC_BYPASS_READ(&leon2->UART_Status_1) |
| 734 | & LEON2_UART_STAT_TSE)) ; |
| 735 | |
| 736 | return 0; |
| 737 | } |
| 738 | |
| 739 | /* node ops */ |
| 740 | |
| 741 | /*#define nodes ((struct node *)__va(&pspi->nodes))*/ |
| 742 | #define nodes ((struct node *)(pspi->nodes)) |
| 743 | |
| 744 | static int PROM_TEXT no_nextnode(int node) |
| 745 | { |
| 746 | /* get physical address */ |
| 747 | struct leon_prom_info *pspi = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 748 | (void *)(CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables)); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 749 | |
| 750 | /* convert into virtual address */ |
| 751 | pspi = (struct leon_prom_info *) |
| 752 | (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET); |
| 753 | |
| 754 | if (nodes[node].level == nodes[node + 1].level) |
| 755 | return node + 1; |
| 756 | return -1; |
| 757 | } |
| 758 | |
| 759 | static int PROM_TEXT no_child(int node) |
| 760 | { |
| 761 | /* get physical address */ |
| 762 | struct leon_prom_info *pspi = (struct leon_prom_info *) |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 763 | (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables)); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 764 | |
| 765 | /* convert into virtual address */ |
| 766 | pspi = (struct leon_prom_info *) |
| 767 | (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET); |
| 768 | |
| 769 | if (nodes[node].level == nodes[node + 1].level - 1) |
| 770 | return node + 1; |
| 771 | return -1; |
| 772 | } |
| 773 | |
| 774 | static struct property PROM_TEXT *find_property(int node, char *name) |
| 775 | { |
| 776 | /* get physical address */ |
| 777 | struct leon_prom_info *pspi = (struct leon_prom_info *) |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 778 | (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables)); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 779 | |
| 780 | /* convert into virtual address */ |
| 781 | pspi = (struct leon_prom_info *) |
| 782 | (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET); |
| 783 | |
| 784 | struct property *prop = &nodes[node].properties[0]; |
| 785 | while (prop && prop->name) { |
| 786 | if (pspi->reloc_funcs.strcmp(prop->name, name) == 0) |
| 787 | return prop; |
| 788 | prop++; |
| 789 | } |
| 790 | return NULL; |
| 791 | } |
| 792 | |
| 793 | static int PROM_TEXT no_proplen(int node, char *name) |
| 794 | { |
| 795 | /* get physical address */ |
| 796 | struct leon_prom_info *pspi = (struct leon_prom_info *) |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 797 | (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables)); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 798 | |
| 799 | /* convert into virtual address */ |
| 800 | pspi = (struct leon_prom_info *) |
| 801 | (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET); |
| 802 | |
| 803 | struct property *prop = pspi->reloc_funcs.find_property(node, name); |
| 804 | if (prop) |
| 805 | return prop->length; |
| 806 | return -1; |
| 807 | } |
| 808 | |
| 809 | static int PROM_TEXT no_getprop(int node, char *name, char *value) |
| 810 | { |
| 811 | /* get physical address */ |
| 812 | struct leon_prom_info *pspi = (struct leon_prom_info *) |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 813 | (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables)); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 814 | |
| 815 | /* convert into virtual address */ |
| 816 | pspi = (struct leon_prom_info *) |
| 817 | (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET); |
| 818 | |
| 819 | struct property *prop = pspi->reloc_funcs.find_property(node, name); |
| 820 | if (prop) { |
| 821 | pspi->reloc_funcs.memcpy(value, prop->value, prop->length); |
| 822 | return 1; |
| 823 | } |
| 824 | return -1; |
| 825 | } |
| 826 | |
| 827 | static int PROM_TEXT no_setprop(int node, char *name, char *value, int len) |
| 828 | { |
| 829 | return -1; |
| 830 | } |
| 831 | |
| 832 | static char PROM_TEXT *no_nextprop(int node, char *name) |
| 833 | { |
| 834 | /* get physical address */ |
| 835 | struct leon_prom_info *pspi = (struct leon_prom_info *) |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 836 | (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables)); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 837 | struct property *prop; |
| 838 | |
| 839 | /* convert into virtual address */ |
| 840 | pspi = (struct leon_prom_info *) |
| 841 | (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET); |
| 842 | |
| 843 | if (!name || !name[0]) |
| 844 | return nodes[node].properties[0].name; |
| 845 | |
| 846 | prop = pspi->reloc_funcs.find_property(node, name); |
| 847 | if (prop) |
| 848 | return prop[1].name; |
| 849 | return NULL; |
| 850 | } |
| 851 | |
| 852 | static int PROM_TEXT leon_strcmp(const char *s1, const char *s2) |
| 853 | { |
| 854 | register char result; |
| 855 | |
| 856 | while (1) { |
| 857 | result = *s1 - *s2; |
| 858 | if (result || !*s1) |
| 859 | break; |
| 860 | s2++; |
| 861 | s1++; |
| 862 | } |
| 863 | |
| 864 | return result; |
| 865 | } |
| 866 | |
| 867 | static void *PROM_TEXT leon_memcpy(void *dest, const void *src, size_t n) |
| 868 | { |
| 869 | char *dst = (char *)dest, *source = (char *)src; |
| 870 | |
| 871 | while (n--) { |
| 872 | *dst = *source; |
| 873 | dst++; |
| 874 | source++; |
| 875 | } |
| 876 | return dest; |
| 877 | } |
| 878 | |
| 879 | #define GETREGSP(sp) __asm__ __volatile__("mov %%sp, %0" : "=r" (sp)) |
| 880 | |
| 881 | void leon_prom_init(struct leon_prom_info *pspi) |
| 882 | { |
| 883 | unsigned long i; |
| 884 | unsigned char cksum, *ptr; |
| 885 | char *addr_str, *end; |
| 886 | unsigned long sp; |
| 887 | GETREGSP(sp); |
| 888 | |
| 889 | pspi->freq_khz = CONFIG_SYS_CLK_FREQ / 1000; |
| 890 | |
| 891 | /* Set Available main memory size */ |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 892 | pspi->totphys.num_bytes = CONFIG_SYS_PROM_OFFSET - CONFIG_SYS_SDRAM_BASE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 893 | pspi->avail.num_bytes = pspi->totphys.num_bytes; |
| 894 | |
| 895 | #undef nodes |
| 896 | pspi->nodes[3].level = -1; |
| 897 | pspi->nodes[3].properties = __va(spi.root_properties + 3); |
| 898 | |
| 899 | /* Set Ethernet MAC address from environment */ |
| 900 | if ((addr_str = getenv("ethaddr")) != NULL) { |
| 901 | for (i = 0; i < 6; i++) { |
| 902 | pspi->idprom.id_ethaddr[i] = addr_str ? |
| 903 | simple_strtoul(addr_str, &end, 16) : 0; |
| 904 | if (addr_str) { |
| 905 | addr_str = (*end) ? end + 1 : end; |
| 906 | } |
| 907 | } |
| 908 | } else { |
| 909 | /* HW Address not found in environment, |
| 910 | * Set default HW address |
| 911 | */ |
| 912 | pspi->idprom.id_ethaddr[0] = 0; |
| 913 | pspi->idprom.id_ethaddr[1] = 0; |
| 914 | pspi->idprom.id_ethaddr[2] = 0; |
| 915 | pspi->idprom.id_ethaddr[3] = 0; |
| 916 | pspi->idprom.id_ethaddr[4] = 0; |
| 917 | pspi->idprom.id_ethaddr[5] = 0; |
| 918 | } |
| 919 | |
| 920 | ptr = (unsigned char *)&pspi->idprom; |
| 921 | for (i = cksum = 0; i <= 0x0E; i++) |
| 922 | cksum ^= *ptr++; |
| 923 | pspi->idprom.id_cksum = cksum; |
| 924 | } |
| 925 | |
| 926 | static inline void set_cache(unsigned long regval) |
| 927 | { |
| 928 | asm volatile ("sta %0, [%%g0] %1\n\t":: "r" (regval), "i"(2):"memory"); |
| 929 | } |
| 930 | |
| 931 | extern unsigned short bss_start, bss_end; |
| 932 | |
| 933 | /* mark as section .img.main.text, to be referenced in linker script */ |
| 934 | int prom_init(void) |
| 935 | { |
| 936 | struct leon_prom_info *pspi = (void *) |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 937 | ((((unsigned int)&spi) & PROM_SIZE_MASK) + CONFIG_SYS_PROM_OFFSET); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 938 | |
| 939 | /* disable mmu */ |
| 940 | srmmu_set_mmureg(0x00000000); |
| 941 | __asm__ __volatile__("flush\n\t"); |
| 942 | |
| 943 | /* init prom info struct */ |
| 944 | leon_prom_init(pspi); |
| 945 | |
| 946 | kernel_arg_promvec = &pspi->romvec; |
| 947 | #ifdef PRINT_ROM_VEC |
| 948 | printf("Kernel rom vec: 0x%lx\n", (unsigned int)(&pspi->romvec)); |
| 949 | #endif |
| 950 | return 0; |
| 951 | } |
| 952 | |
| 953 | /* Copy current kernel boot argument to ROMvec */ |
| 954 | void prepare_bootargs(char *bootargs) |
| 955 | { |
| 956 | struct leon_prom_info *pspi; |
| 957 | char *src, *dst; |
| 958 | int left; |
| 959 | |
| 960 | /* if no bootargs set, skip copying ==> default bootline */ |
| 961 | if (bootargs && (*bootargs != '\0')) { |
| 962 | pspi = (void *)((((unsigned int)&spi) & PROM_SIZE_MASK) + |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 963 | CONFIG_SYS_PROM_OFFSET); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 964 | src = bootargs; |
| 965 | dst = &pspi->arg[0]; |
| 966 | left = 255; /* max len */ |
| 967 | while (*src && left > 0) { |
| 968 | *dst++ = *src++; |
| 969 | left--; |
| 970 | } |
| 971 | /* terminate kernel command line string */ |
| 972 | *dst = 0; |
| 973 | } |
| 974 | } |
| 975 | |
| 976 | void srmmu_init_cpu(unsigned int entry) |
| 977 | { |
| 978 | sparc_srmmu_setup *psrmmu_tables = (void *) |
| 979 | ((((unsigned int)&srmmu_tables) & PROM_SIZE_MASK) + |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 980 | CONFIG_SYS_PROM_OFFSET); |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 981 | |
| 982 | /* Make context 0 (kernel's context) point |
| 983 | * to our prepared memory mapping |
| 984 | */ |
| 985 | #define PTD 1 |
| 986 | psrmmu_tables->ctx_table[0] = |
| 987 | ((unsigned int)&psrmmu_tables->pgd_table[0x00]) >> 4 | PTD; |
| 988 | |
| 989 | /* Set virtual kernel address 0xf0000000 |
| 990 | * to SRAM/SDRAM address. |
| 991 | * Make it READ/WRITE/EXEC to SuperUser |
| 992 | */ |
| 993 | #define PTE 2 |
| 994 | #define ACC_SU_ALL 0x1c |
| 995 | psrmmu_tables->pgd_table[0xf0] = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 996 | (CONFIG_SYS_SDRAM_BASE >> 4) | ACC_SU_ALL | PTE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 997 | psrmmu_tables->pgd_table[0xf1] = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 998 | ((CONFIG_SYS_SDRAM_BASE + 0x1000000) >> 4) | ACC_SU_ALL | PTE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 999 | psrmmu_tables->pgd_table[0xf2] = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1000 | ((CONFIG_SYS_SDRAM_BASE + 0x2000000) >> 4) | ACC_SU_ALL | PTE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 1001 | psrmmu_tables->pgd_table[0xf3] = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1002 | ((CONFIG_SYS_SDRAM_BASE + 0x3000000) >> 4) | ACC_SU_ALL | PTE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 1003 | psrmmu_tables->pgd_table[0xf4] = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1004 | ((CONFIG_SYS_SDRAM_BASE + 0x4000000) >> 4) | ACC_SU_ALL | PTE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 1005 | psrmmu_tables->pgd_table[0xf5] = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1006 | ((CONFIG_SYS_SDRAM_BASE + 0x5000000) >> 4) | ACC_SU_ALL | PTE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 1007 | psrmmu_tables->pgd_table[0xf6] = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1008 | ((CONFIG_SYS_SDRAM_BASE + 0x6000000) >> 4) | ACC_SU_ALL | PTE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 1009 | psrmmu_tables->pgd_table[0xf7] = |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1010 | ((CONFIG_SYS_SDRAM_BASE + 0x7000000) >> 4) | ACC_SU_ALL | PTE; |
Daniel Hellstrom | 207e695 | 2008-03-28 10:00:33 +0100 | [diff] [blame] | 1011 | |
| 1012 | /* convert rom vec pointer to virtual address */ |
| 1013 | kernel_arg_promvec = (struct linux_romvec *) |
| 1014 | (((unsigned int)kernel_arg_promvec & 0x0fffffff) | 0xf0000000); |
| 1015 | |
| 1016 | /* Set Context pointer to point to context table |
| 1017 | * 256 contexts supported. |
| 1018 | */ |
| 1019 | srmmu_set_ctable_ptr((unsigned int)&psrmmu_tables->ctx_table[0]); |
| 1020 | |
| 1021 | /* Set kernel's context, context zero */ |
| 1022 | srmmu_set_context(0); |
| 1023 | |
| 1024 | /* Invalidate all Cache */ |
| 1025 | __asm__ __volatile__("flush\n\t"); |
| 1026 | |
| 1027 | srmmu_set_mmureg(0x00000001); |
| 1028 | leon_flush_tlb_all(); |
| 1029 | leon_flush_cache_all(); |
| 1030 | } |