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4e5ca3eb | 1 | /* |
bf9e3b38 WD |
2 | * (C) Copyright 2003 |
3 | * Josef Baumgartner <josef.baumgartner@telex.de> | |
4 | * | |
5 | * (C) Copyright 2000-2002 | |
4e5ca3eb WD |
6 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
7 | * | |
8 | * See file CREDITS for list of people who contributed to this | |
9 | * project. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License as | |
13 | * published by the Free Software Foundation; either version 2 of | |
14 | * the License, or (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
24 | * MA 02111-1307 USA | |
25 | */ | |
26 | ||
27 | #include <common.h> | |
28 | #include <watchdog.h> | |
29 | #include <command.h> | |
30 | #include <malloc.h> | |
31 | #include <devices.h> | |
bf9e3b38 WD |
32 | |
33 | #ifdef CONFIG_M5272 | |
34 | #include <asm/immap_5272.h> | |
35 | #endif | |
36 | ||
4e5ca3eb WD |
37 | #if (CONFIG_COMMANDS & CFG_CMD_IDE) |
38 | #include <ide.h> | |
39 | #endif | |
40 | #if (CONFIG_COMMANDS & CFG_CMD_SCSI) | |
41 | #include <scsi.h> | |
42 | #endif | |
43 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) | |
44 | #include <kgdb.h> | |
45 | #endif | |
46 | #ifdef CONFIG_STATUS_LED | |
47 | #include <status_led.h> | |
48 | #endif | |
49 | #include <net.h> | |
50 | #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG) | |
51 | #include <cmd_bedbug.h> | |
52 | #endif | |
53 | #ifdef CFG_ALLOC_DPRAM | |
54 | #include <commproc.h> | |
55 | #endif | |
56 | #include <version.h> | |
57 | ||
e2c22d78 SR |
58 | #if defined(CONFIG_HARD_I2C) || \ |
59 | defined(CONFIG_SOFT_I2C) | |
60 | #include <i2c.h> | |
61 | #endif | |
62 | ||
4e5ca3eb WD |
63 | static char *failed = "*** failed ***\n"; |
64 | ||
65 | #ifdef CONFIG_PCU_E | |
66 | extern flash_info_t flash_info[]; | |
67 | #endif | |
68 | ||
bf9e3b38 WD |
69 | #include <environment.h> |
70 | ||
4e5ca3eb WD |
71 | #if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \ |
72 | (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \ | |
73 | defined(CFG_ENV_IS_IN_NVRAM) | |
74 | #define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE) | |
75 | #else | |
76 | #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN | |
77 | #endif | |
78 | ||
bf9e3b38 WD |
79 | extern ulong __init_end; |
80 | extern ulong _end; | |
81 | ||
82 | extern void timer_init(void); | |
83 | ||
84 | #if defined(CONFIG_WATCHDOG) | |
85 | # define INIT_FUNC_WATCHDOG_INIT watchdog_init, | |
86 | # define WATCHDOG_DISABLE watchdog_disable | |
87 | ||
88 | extern int watchdog_init(void); | |
89 | extern int watchdog_disable(void); | |
90 | #else | |
91 | # define INIT_FUNC_WATCHDOG_INIT /* undef */ | |
92 | # define WATCHDOG_DISABLE /* undef */ | |
93 | #endif /* CONFIG_WATCHDOG */ | |
94 | ||
95 | ulong monitor_flash_len; | |
96 | ||
4e5ca3eb WD |
97 | /* |
98 | * Begin and End of memory area for malloc(), and current "brk" | |
99 | */ | |
bf9e3b38 WD |
100 | static ulong mem_malloc_start = 0; |
101 | static ulong mem_malloc_end = 0; | |
102 | static ulong mem_malloc_brk = 0; | |
4e5ca3eb WD |
103 | |
104 | /************************************************************************ | |
105 | * Utilities * | |
106 | ************************************************************************ | |
107 | */ | |
108 | ||
109 | /* | |
110 | * The Malloc area is immediately below the monitor copy in DRAM | |
111 | */ | |
bf9e3b38 | 112 | static void mem_malloc_init (void) |
4e5ca3eb | 113 | { |
bf9e3b38 WD |
114 | DECLARE_GLOBAL_DATA_PTR; |
115 | ||
116 | ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off; | |
117 | ||
4e5ca3eb WD |
118 | mem_malloc_end = dest_addr; |
119 | mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN; | |
120 | mem_malloc_brk = mem_malloc_start; | |
121 | ||
bf9e3b38 WD |
122 | memset ((void *) mem_malloc_start, |
123 | 0, | |
4e5ca3eb WD |
124 | mem_malloc_end - mem_malloc_start); |
125 | } | |
126 | ||
127 | void *sbrk (ptrdiff_t increment) | |
128 | { | |
129 | ulong old = mem_malloc_brk; | |
130 | ulong new = old + increment; | |
131 | ||
bf9e3b38 WD |
132 | if ((new < mem_malloc_start) || |
133 | (new > mem_malloc_end) ) { | |
4e5ca3eb WD |
134 | return (NULL); |
135 | } | |
136 | mem_malloc_brk = new; | |
bf9e3b38 | 137 | return ((void *)old); |
4e5ca3eb WD |
138 | } |
139 | ||
bf9e3b38 | 140 | char *strmhz(char *buf, long hz) |
4e5ca3eb | 141 | { |
bf9e3b38 WD |
142 | long l, n; |
143 | long m; | |
4e5ca3eb | 144 | |
bf9e3b38 | 145 | n = hz / 1000000L; |
4e5ca3eb | 146 | |
bf9e3b38 | 147 | l = sprintf (buf, "%ld", n); |
4e5ca3eb | 148 | |
bf9e3b38 | 149 | m = (hz % 1000000L) / 1000L; |
4e5ca3eb | 150 | |
bf9e3b38 WD |
151 | if (m != 0) |
152 | sprintf (buf+l, ".%03ld", m); | |
4e5ca3eb | 153 | |
bf9e3b38 | 154 | return (buf); |
4e5ca3eb WD |
155 | } |
156 | ||
bf9e3b38 WD |
157 | /* |
158 | * All attempts to come up with a "common" initialization sequence | |
159 | * that works for all boards and architectures failed: some of the | |
160 | * requirements are just _too_ different. To get rid of the resulting | |
161 | * mess of board dependend #ifdef'ed code we now make the whole | |
162 | * initialization sequence configurable to the user. | |
163 | * | |
164 | * The requirements for any new initalization function is simple: it | |
165 | * receives a pointer to the "global data" structure as it's only | |
166 | * argument, and returns an integer return code, where 0 means | |
167 | * "continue" and != 0 means "fatal error, hang the system". | |
168 | */ | |
169 | typedef int (init_fnc_t) (void); | |
170 | ||
171 | /************************************************************************ | |
172 | * Init Utilities * | |
173 | ************************************************************************ | |
174 | * Some of this code should be moved into the core functions, | |
175 | * but let's get it working (again) first... | |
176 | */ | |
177 | ||
178 | static int init_baudrate (void) | |
4e5ca3eb | 179 | { |
bf9e3b38 WD |
180 | DECLARE_GLOBAL_DATA_PTR; |
181 | ||
182 | uchar tmp[64]; /* long enough for environment variables */ | |
183 | int i = getenv_r ("baudrate", tmp, sizeof (tmp)); | |
184 | ||
185 | gd->baudrate = (i > 0) | |
186 | ? (int) simple_strtoul (tmp, NULL, 10) | |
187 | : CONFIG_BAUDRATE; | |
188 | return (0); | |
189 | } | |
4e5ca3eb | 190 | |
bf9e3b38 | 191 | /***********************************************************************/ |
4e5ca3eb | 192 | |
bf9e3b38 WD |
193 | static int init_func_ram (void) |
194 | { | |
195 | DECLARE_GLOBAL_DATA_PTR; | |
4e5ca3eb | 196 | |
bf9e3b38 WD |
197 | int board_type = 0; /* use dummy arg */ |
198 | puts ("DRAM: "); | |
4e5ca3eb | 199 | |
bf9e3b38 WD |
200 | if ((gd->ram_size = initdram (board_type)) > 0) { |
201 | print_size (gd->ram_size, "\n"); | |
202 | return (0); | |
203 | } | |
204 | puts (failed); | |
205 | return (1); | |
4e5ca3eb WD |
206 | } |
207 | ||
bf9e3b38 WD |
208 | /***********************************************************************/ |
209 | ||
e2c22d78 SR |
210 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
211 | static int init_func_i2c (void) | |
212 | { | |
213 | puts ("I2C: "); | |
214 | i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE); | |
215 | puts ("ready\n"); | |
216 | return (0); | |
217 | } | |
218 | #endif | |
219 | ||
220 | /***********************************************************************/ | |
221 | ||
bf9e3b38 WD |
222 | /************************************************************************ |
223 | * Initialization sequence * | |
224 | ************************************************************************ | |
225 | */ | |
226 | ||
227 | init_fnc_t *init_sequence[] = { | |
228 | env_init, | |
229 | init_baudrate, | |
230 | serial_init, | |
231 | console_init_f, | |
232 | display_options, | |
233 | checkcpu, | |
234 | checkboard, | |
e2c22d78 SR |
235 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
236 | init_func_i2c, | |
237 | #endif | |
bf9e3b38 WD |
238 | init_func_ram, |
239 | #if defined(CFG_DRAM_TEST) | |
240 | testdram, | |
241 | #endif /* CFG_DRAM_TEST */ | |
242 | INIT_FUNC_WATCHDOG_INIT | |
243 | NULL, /* Terminate this list */ | |
244 | }; | |
245 | ||
246 | ||
4e5ca3eb WD |
247 | /************************************************************************ |
248 | * | |
249 | * This is the first part of the initialization sequence that is | |
250 | * implemented in C, but still running from ROM. | |
251 | * | |
252 | * The main purpose is to provide a (serial) console interface as | |
253 | * soon as possible (so we can see any error messages), and to | |
254 | * initialize the RAM so that we can relocate the monitor code to | |
255 | * RAM. | |
256 | * | |
257 | * Be aware of the restrictions: global data is read-only, BSS is not | |
258 | * initialized, and stack space is limited to a few kB. | |
259 | * | |
260 | ************************************************************************ | |
261 | */ | |
262 | ||
bf9e3b38 WD |
263 | void |
264 | board_init_f (ulong bootflag) | |
4e5ca3eb | 265 | { |
bf9e3b38 | 266 | DECLARE_GLOBAL_DATA_PTR; |
4e5ca3eb WD |
267 | |
268 | bd_t *bd; | |
bf9e3b38 WD |
269 | ulong len, addr, addr_sp; |
270 | gd_t *id; | |
271 | init_fnc_t **init_fnc_ptr; | |
272 | #ifdef CONFIG_PRAM | |
273 | int i; | |
274 | ulong reg; | |
4e5ca3eb | 275 | uchar tmp[64]; /* long enough for environment variables */ |
bf9e3b38 | 276 | #endif |
4e5ca3eb | 277 | |
bf9e3b38 WD |
278 | /* Pointer is writable since we allocated a register for it */ |
279 | gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET); | |
93f6a677 WD |
280 | /* compiler optimization barrier needed for GCC >= 3.4 */ |
281 | __asm__ __volatile__("": : :"memory"); | |
4e5ca3eb | 282 | |
bf9e3b38 WD |
283 | /* Clear initial global data */ |
284 | memset ((void *) gd, 0, sizeof (gd_t)); | |
4e5ca3eb | 285 | |
bf9e3b38 WD |
286 | for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { |
287 | if ((*init_fnc_ptr)() != 0) { | |
288 | hang (); | |
289 | } | |
4e5ca3eb | 290 | } |
4e5ca3eb WD |
291 | |
292 | /* | |
293 | * Now that we have DRAM mapped and working, we can | |
294 | * relocate the code and continue running from DRAM. | |
295 | * | |
296 | * Reserve memory at end of RAM for (top down in that order): | |
bf9e3b38 WD |
297 | * - protected RAM |
298 | * - LCD framebuffer | |
299 | * - monitor code | |
300 | * - board info struct | |
4e5ca3eb | 301 | */ |
bf9e3b38 | 302 | len = (ulong)&_end - CFG_MONITOR_BASE; |
4e5ca3eb | 303 | |
bf9e3b38 | 304 | addr = CFG_SDRAM_BASE + gd->ram_size; |
4e5ca3eb | 305 | |
bf9e3b38 WD |
306 | #ifdef CONFIG_LOGBUFFER |
307 | /* reserve kernel log buffer */ | |
308 | addr -= (LOGBUFF_RESERVE); | |
309 | debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr); | |
310 | #endif | |
311 | ||
312 | #ifdef CONFIG_PRAM | |
313 | /* | |
314 | * reserve protected RAM | |
315 | */ | |
316 | i = getenv_r ("pram", tmp, sizeof (tmp)); | |
317 | reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM; | |
318 | addr -= (reg << 10); /* size is in kB */ | |
319 | debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr); | |
320 | #endif /* CONFIG_PRAM */ | |
4e5ca3eb | 321 | |
bf9e3b38 WD |
322 | /* |
323 | * reserve memory for U-Boot code, data & bss | |
324 | * round down to next 4 kB limit | |
325 | */ | |
4e5ca3eb | 326 | addr -= len; |
bf9e3b38 WD |
327 | addr &= ~(4096 - 1); |
328 | ||
329 | debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr); | |
4e5ca3eb WD |
330 | |
331 | /* | |
bf9e3b38 | 332 | * reserve memory for malloc() arena |
4e5ca3eb | 333 | */ |
bf9e3b38 WD |
334 | addr_sp = addr - TOTAL_MALLOC_LEN; |
335 | debug ("Reserving %dk for malloc() at: %08lx\n", | |
336 | TOTAL_MALLOC_LEN >> 10, addr_sp); | |
4e5ca3eb | 337 | |
bf9e3b38 WD |
338 | /* |
339 | * (permanently) allocate a Board Info struct | |
340 | * and a permanent copy of the "global" data | |
341 | */ | |
342 | addr_sp -= sizeof (bd_t); | |
343 | bd = (bd_t *) addr_sp; | |
344 | gd->bd = bd; | |
345 | debug ("Reserving %d Bytes for Board Info at: %08lx\n", | |
346 | sizeof (bd_t), addr_sp); | |
347 | addr_sp -= sizeof (gd_t); | |
348 | id = (gd_t *) addr_sp; | |
349 | debug ("Reserving %d Bytes for Global Data at: %08lx\n", | |
350 | sizeof (gd_t), addr_sp); | |
351 | ||
352 | /* Reserve memory for boot params. */ | |
353 | addr_sp -= CFG_BOOTPARAMS_LEN; | |
354 | bd->bi_boot_params = addr_sp; | |
355 | debug ("Reserving %dk for boot parameters at: %08lx\n", | |
356 | CFG_BOOTPARAMS_LEN >> 10, addr_sp); | |
4e5ca3eb | 357 | |
bf9e3b38 WD |
358 | /* |
359 | * Finally, we set up a new (bigger) stack. | |
360 | * | |
361 | * Leave some safety gap for SP, force alignment on 16 byte boundary | |
362 | * Clear initial stack frame | |
363 | */ | |
364 | addr_sp -= 16; | |
365 | addr_sp &= ~0xF; | |
366 | *((ulong *) addr_sp)-- = 0; | |
367 | *((ulong *) addr_sp)-- = 0; | |
368 | debug ("Stack Pointer at: %08lx\n", addr_sp); | |
4e5ca3eb | 369 | |
bf9e3b38 WD |
370 | /* |
371 | * Save local variables to board info struct | |
372 | */ | |
373 | bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */ | |
374 | bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */ | |
375 | bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */ | |
376 | ||
377 | bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */ | |
378 | ||
379 | WATCHDOG_RESET (); | |
380 | bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ | |
381 | bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ | |
382 | bd->bi_baudrate = gd->baudrate; /* Console Baudrate */ | |
4e5ca3eb WD |
383 | |
384 | #ifdef CFG_EXTBDINFO | |
385 | strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version)); | |
bf9e3b38 WD |
386 | strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version)); |
387 | #endif | |
388 | ||
389 | WATCHDOG_RESET (); | |
4e5ca3eb | 390 | |
bf9e3b38 WD |
391 | #ifdef CONFIG_POST |
392 | post_bootmode_init(); | |
393 | post_run (NULL, POST_ROM | post_bootmode_get(0)); | |
4e5ca3eb WD |
394 | #endif |
395 | ||
bf9e3b38 | 396 | WATCHDOG_RESET(); |
4e5ca3eb | 397 | |
bf9e3b38 WD |
398 | memcpy (id, (void *)gd, sizeof (gd_t)); |
399 | ||
400 | debug ("Start relocate of code from %08x to %08lx\n", CFG_MONITOR_BASE, addr); | |
401 | relocate_code (addr_sp, id, addr); | |
4e5ca3eb | 402 | |
bf9e3b38 WD |
403 | /* NOTREACHED - jump_to_ram() does not return */ |
404 | } | |
4e5ca3eb WD |
405 | |
406 | /************************************************************************ | |
407 | * | |
408 | * This is the next part if the initialization sequence: we are now | |
409 | * running from RAM and have a "normal" C environment, i. e. global | |
410 | * data can be written, BSS has been cleared, the stack size in not | |
411 | * that critical any more, etc. | |
412 | * | |
413 | ************************************************************************ | |
414 | */ | |
bf9e3b38 | 415 | void board_init_r (gd_t *id, ulong dest_addr) |
4e5ca3eb WD |
416 | { |
417 | DECLARE_GLOBAL_DATA_PTR; | |
4e5ca3eb | 418 | cmd_tbl_t *cmdtp; |
bf9e3b38 | 419 | char *s, *e; |
4e5ca3eb | 420 | bd_t *bd; |
bf9e3b38 WD |
421 | int i; |
422 | extern void malloc_bin_reloc (void); | |
4e5ca3eb | 423 | |
bf9e3b38 WD |
424 | #ifndef CFG_ENV_IS_NOWHERE |
425 | extern char * env_name_spec; | |
426 | #endif | |
427 | #ifndef CFG_NO_FLASH | |
428 | ulong flash_size; | |
429 | #endif | |
430 | gd = id; /* initialize RAM version of global data */ | |
4e5ca3eb | 431 | bd = gd->bd; |
bf9e3b38 WD |
432 | |
433 | gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ | |
434 | ||
435 | debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr); | |
436 | ||
437 | WATCHDOG_RESET (); | |
438 | ||
439 | gd->reloc_off = dest_addr - CFG_MONITOR_BASE; | |
440 | ||
441 | monitor_flash_len = (ulong)&__init_end - dest_addr; | |
442 | ||
443 | /* | |
444 | * We have to relocate the command table manually | |
445 | */ | |
446 | for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) { | |
447 | ulong addr; | |
448 | addr = (ulong) (cmdtp->cmd) + gd->reloc_off; | |
449 | #if 0 | |
450 | printf ("Command \"%s\": 0x%08lx => 0x%08lx\n", | |
451 | cmdtp->name, (ulong) (cmdtp->cmd), addr); | |
452 | #endif | |
453 | cmdtp->cmd = | |
454 | (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr; | |
455 | ||
456 | addr = (ulong)(cmdtp->name) + gd->reloc_off; | |
457 | cmdtp->name = (char *)addr; | |
458 | ||
459 | if (cmdtp->usage) { | |
460 | addr = (ulong)(cmdtp->usage) + gd->reloc_off; | |
461 | cmdtp->usage = (char *)addr; | |
462 | } | |
463 | #ifdef CFG_LONGHELP | |
464 | if (cmdtp->help) { | |
465 | addr = (ulong)(cmdtp->help) + gd->reloc_off; | |
466 | cmdtp->help = (char *)addr; | |
467 | } | |
468 | #endif | |
469 | } | |
470 | /* there are some other pointer constants we must deal with */ | |
471 | #ifndef CFG_ENV_IS_NOWHERE | |
472 | env_name_spec += gd->reloc_off; | |
473 | #endif | |
474 | ||
475 | WATCHDOG_RESET (); | |
476 | ||
477 | #ifdef CONFIG_LOGBUFFER | |
478 | logbuff_init_ptrs (); | |
479 | #endif | |
480 | #ifdef CONFIG_POST | |
481 | post_output_backlog (); | |
482 | post_reloc (); | |
483 | #endif | |
484 | WATCHDOG_RESET(); | |
485 | ||
486 | #if 0 | |
487 | /* instruction cache enabled in cpu_init_f() for faster relocation */ | |
488 | icache_enable (); /* it's time to enable the instruction cache */ | |
489 | #endif | |
4e5ca3eb WD |
490 | |
491 | /* | |
492 | * Setup trap handlers | |
493 | */ | |
bf9e3b38 | 494 | trap_init (0); |
4e5ca3eb | 495 | |
bf9e3b38 | 496 | #if !defined(CFG_NO_FLASH) |
4e5ca3eb WD |
497 | puts ("FLASH: "); |
498 | ||
499 | if ((flash_size = flash_init ()) > 0) { | |
bf9e3b38 WD |
500 | # ifdef CFG_FLASH_CHECKSUM |
501 | print_size (flash_size, ""); | |
4e5ca3eb WD |
502 | /* |
503 | * Compute and print flash CRC if flashchecksum is set to 'y' | |
504 | * | |
bf9e3b38 | 505 | * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX |
4e5ca3eb WD |
506 | */ |
507 | s = getenv ("flashchecksum"); | |
508 | if (s && (*s == 'y')) { | |
509 | printf (" CRC: %08lX", | |
bf9e3b38 WD |
510 | crc32 (0, |
511 | (const unsigned char *) CFG_FLASH_BASE, | |
512 | flash_size) | |
513 | ); | |
4e5ca3eb WD |
514 | } |
515 | putc ('\n'); | |
bf9e3b38 WD |
516 | # else /* !CFG_FLASH_CHECKSUM */ |
517 | print_size (flash_size, "\n"); | |
518 | # endif /* CFG_FLASH_CHECKSUM */ | |
4e5ca3eb WD |
519 | } else { |
520 | puts (failed); | |
521 | hang (); | |
522 | } | |
523 | ||
bf9e3b38 WD |
524 | bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */ |
525 | bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */ | |
526 | bd->bi_flashoffset = 0; | |
527 | #else /* CFG_NO_FLASH */ | |
528 | bd->bi_flashsize = 0; | |
529 | bd->bi_flashstart = 0; | |
530 | bd->bi_flashoffset = 0; | |
531 | #endif /* !CFG_NO_FLASH */ | |
4e5ca3eb WD |
532 | |
533 | WATCHDOG_RESET (); | |
534 | ||
535 | /* initialize higher level parts of CPU like time base and timers */ | |
536 | cpu_init_r (); | |
537 | ||
538 | WATCHDOG_RESET (); | |
539 | ||
540 | /* initialize malloc() area */ | |
bf9e3b38 WD |
541 | mem_malloc_init (); |
542 | malloc_bin_reloc (); | |
4e5ca3eb WD |
543 | |
544 | #ifdef CONFIG_SPI | |
545 | # if !defined(CFG_ENV_IS_IN_EEPROM) | |
546 | spi_init_f (); | |
547 | # endif | |
548 | spi_init_r (); | |
549 | #endif | |
550 | ||
551 | /* relocate environment function pointers etc. */ | |
552 | env_relocate (); | |
553 | ||
bf9e3b38 WD |
554 | /* |
555 | * Fill in missing fields of bd_info. | |
556 | * We do this here, where we have "normal" access to the | |
557 | * environment; we used to do this still running from ROM, | |
558 | * where had to use getenv_r(), which can be pretty slow when | |
559 | * the environment is in EEPROM. | |
560 | */ | |
561 | s = getenv ("ethaddr"); | |
562 | for (i = 0; i < 6; ++i) { | |
563 | bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0; | |
564 | if (s) | |
565 | s = (*e) ? e + 1 : e; | |
566 | } | |
567 | ||
4e5ca3eb WD |
568 | /* IP Address */ |
569 | bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); | |
570 | ||
571 | WATCHDOG_RESET (); | |
572 | ||
4e5ca3eb | 573 | |
bf9e3b38 WD |
574 | /** leave this here (after malloc(), environment and PCI are working) **/ |
575 | /* Initialize devices */ | |
576 | devices_init (); | |
4e5ca3eb | 577 | |
bf9e3b38 WD |
578 | /* Initialize the jump table for applications */ |
579 | jumptable_init (); | |
4e5ca3eb | 580 | |
bf9e3b38 WD |
581 | /* Initialize the console (after the relocation and devices init) */ |
582 | console_init_r (); | |
4e5ca3eb | 583 | |
e2c22d78 SR |
584 | #if defined(CONFIG_MISC_INIT_R) |
585 | /* miscellaneous platform dependent initialisations */ | |
586 | misc_init_r (); | |
587 | #endif | |
588 | ||
4e5ca3eb WD |
589 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) |
590 | WATCHDOG_RESET (); | |
591 | puts ("KGDB: "); | |
592 | kgdb_init (); | |
593 | #endif | |
594 | ||
bf9e3b38 WD |
595 | debug ("U-Boot relocated to %08lx\n", dest_addr); |
596 | ||
4e5ca3eb WD |
597 | /* |
598 | * Enable Interrupts | |
599 | */ | |
600 | interrupt_init (); | |
bf9e3b38 WD |
601 | |
602 | /* Must happen after interrupts are initialized since | |
603 | * an irq handler gets installed | |
604 | */ | |
605 | timer_init(); | |
606 | ||
42dfe7a1 | 607 | #ifdef CONFIG_SERIAL_SOFTWARE_FIFO |
bf9e3b38 WD |
608 | serial_buffered_init(); |
609 | #endif | |
610 | ||
611 | #ifdef CONFIG_STATUS_LED | |
612 | status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING); | |
613 | #endif | |
614 | ||
4e5ca3eb | 615 | udelay (20); |
bf9e3b38 | 616 | |
4e5ca3eb WD |
617 | set_timer (0); |
618 | ||
619 | /* Insert function pointers now that we have relocated the code */ | |
620 | ||
621 | /* Initialize from environment */ | |
622 | if ((s = getenv ("loadaddr")) != NULL) { | |
623 | load_addr = simple_strtoul (s, NULL, 16); | |
624 | } | |
625 | #if (CONFIG_COMMANDS & CFG_CMD_NET) | |
626 | if ((s = getenv ("bootfile")) != NULL) { | |
627 | copy_filename (BootFile, s, sizeof (BootFile)); | |
628 | } | |
629 | #endif /* CFG_CMD_NET */ | |
630 | ||
631 | WATCHDOG_RESET (); | |
632 | ||
bf9e3b38 WD |
633 | #if (CONFIG_COMMANDS & CFG_CMD_DOC) |
634 | WATCHDOG_RESET (); | |
635 | puts ("DOC: "); | |
636 | doc_init (); | |
637 | #endif | |
638 | ||
639 | #if (CONFIG_COMMANDS & CFG_CMD_NAND) | |
4e5ca3eb | 640 | WATCHDOG_RESET (); |
bf9e3b38 WD |
641 | puts ("NAND:"); |
642 | nand_init(); /* go init the NAND */ | |
643 | #endif | |
644 | ||
645 | #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(FEC_ENET) | |
646 | WATCHDOG_RESET(); | |
647 | eth_init(bd); | |
648 | #endif | |
649 | ||
650 | #ifdef CONFIG_POST | |
651 | post_run (NULL, POST_RAM | post_bootmode_get(0)); | |
4e5ca3eb WD |
652 | #endif |
653 | ||
654 | #ifdef CONFIG_LAST_STAGE_INIT | |
655 | WATCHDOG_RESET (); | |
656 | /* | |
657 | * Some parts can be only initialized if all others (like | |
658 | * Interrupts) are up and running (i.e. the PC-style ISA | |
659 | * keyboard). | |
660 | */ | |
661 | last_stage_init (); | |
662 | #endif | |
663 | ||
664 | #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG) | |
665 | WATCHDOG_RESET (); | |
666 | bedbug_init (); | |
667 | #endif | |
668 | ||
bf9e3b38 | 669 | #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) |
4e5ca3eb WD |
670 | /* |
671 | * Export available size of memory for Linux, | |
672 | * taking into account the protected RAM at top of memory | |
673 | */ | |
674 | { | |
675 | ulong pram; | |
4e5ca3eb | 676 | uchar memsz[32]; |
bf9e3b38 WD |
677 | #ifdef CONFIG_PRAM |
678 | char *s; | |
4e5ca3eb WD |
679 | |
680 | if ((s = getenv ("pram")) != NULL) { | |
681 | pram = simple_strtoul (s, NULL, 10); | |
682 | } else { | |
683 | pram = CONFIG_PRAM; | |
684 | } | |
bf9e3b38 WD |
685 | #else |
686 | pram=0; | |
687 | #endif | |
688 | #ifdef CONFIG_LOGBUFFER | |
689 | /* Also take the logbuffer into account (pram is in kB) */ | |
690 | pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024; | |
691 | #endif | |
4e5ca3eb WD |
692 | sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram); |
693 | setenv ("mem", memsz); | |
694 | } | |
695 | #endif | |
696 | ||
bf9e3b38 WD |
697 | #ifdef CONFIG_MODEM_SUPPORT |
698 | { | |
699 | extern int do_mdm_init; | |
700 | do_mdm_init = gd->do_mdm_init; | |
701 | } | |
702 | #endif | |
703 | ||
704 | #ifdef CONFIG_WATCHDOG | |
705 | /* disable watchdog if environment is set */ | |
706 | if ((s = getenv ("watchdog")) != NULL) { | |
707 | if (strncmp (s, "off", 3) == 0) { | |
708 | WATCHDOG_DISABLE (); | |
709 | } | |
710 | } | |
711 | #endif /* CONFIG_WATCHDOG*/ | |
712 | ||
713 | ||
4e5ca3eb WD |
714 | /* Initialization complete - start the monitor */ |
715 | ||
716 | /* main_loop() can return to retry autoboot, if so just run it again. */ | |
717 | for (;;) { | |
718 | WATCHDOG_RESET (); | |
719 | main_loop (); | |
720 | } | |
721 | ||
722 | /* NOTREACHED - no way out of command loop except booting */ | |
723 | } | |
724 | ||
bf9e3b38 WD |
725 | |
726 | void hang(void) | |
4e5ca3eb WD |
727 | { |
728 | puts ("### ERROR ### Please RESET the board ###\n"); | |
729 | for (;;); | |
730 | } |