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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 | 32 | |
8ae158cd | 33 | #include <asm/immap.h> |
bf9e3b38 | 34 | |
7def6b34 | 35 | #if defined(CONFIG_CMD_IDE) |
4e5ca3eb WD |
36 | #include <ide.h> |
37 | #endif | |
7def6b34 | 38 | #if defined(CONFIG_CMD_SCSI) |
4e5ca3eb WD |
39 | #include <scsi.h> |
40 | #endif | |
7def6b34 | 41 | #if defined(CONFIG_CMD_KGDB) |
4e5ca3eb WD |
42 | #include <kgdb.h> |
43 | #endif | |
44 | #ifdef CONFIG_STATUS_LED | |
45 | #include <status_led.h> | |
46 | #endif | |
47 | #include <net.h> | |
7def6b34 | 48 | #if defined(CONFIG_CMD_BEDBUG) |
4e5ca3eb WD |
49 | #include <cmd_bedbug.h> |
50 | #endif | |
51 | #ifdef CFG_ALLOC_DPRAM | |
52 | #include <commproc.h> | |
53 | #endif | |
54 | #include <version.h> | |
55 | ||
e2c22d78 SR |
56 | #if defined(CONFIG_HARD_I2C) || \ |
57 | defined(CONFIG_SOFT_I2C) | |
58 | #include <i2c.h> | |
59 | #endif | |
60 | ||
d87080b7 WD |
61 | DECLARE_GLOBAL_DATA_PTR; |
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 | ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off; |
115 | ||
4e5ca3eb WD |
116 | mem_malloc_end = dest_addr; |
117 | mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN; | |
118 | mem_malloc_brk = mem_malloc_start; | |
119 | ||
bf9e3b38 WD |
120 | memset ((void *) mem_malloc_start, |
121 | 0, | |
4e5ca3eb WD |
122 | mem_malloc_end - mem_malloc_start); |
123 | } | |
124 | ||
125 | void *sbrk (ptrdiff_t increment) | |
126 | { | |
127 | ulong old = mem_malloc_brk; | |
128 | ulong new = old + increment; | |
129 | ||
bf9e3b38 WD |
130 | if ((new < mem_malloc_start) || |
131 | (new > mem_malloc_end) ) { | |
4e5ca3eb WD |
132 | return (NULL); |
133 | } | |
134 | mem_malloc_brk = new; | |
bf9e3b38 | 135 | return ((void *)old); |
4e5ca3eb WD |
136 | } |
137 | ||
bf9e3b38 | 138 | char *strmhz(char *buf, long hz) |
4e5ca3eb | 139 | { |
8ae158cd TL |
140 | long l, n; |
141 | long m; | |
4e5ca3eb | 142 | |
8ae158cd | 143 | n = hz / 1000000L; |
4e5ca3eb | 144 | |
8ae158cd | 145 | l = sprintf (buf, "%ld", n); |
4e5ca3eb | 146 | |
8ae158cd | 147 | m = (hz % 1000000L) / 1000L; |
4e5ca3eb | 148 | |
8ae158cd TL |
149 | if (m != 0) |
150 | sprintf (buf+l, ".%03ld", m); | |
4e5ca3eb | 151 | |
8ae158cd | 152 | return (buf); |
4e5ca3eb WD |
153 | } |
154 | ||
bf9e3b38 WD |
155 | /* |
156 | * All attempts to come up with a "common" initialization sequence | |
157 | * that works for all boards and architectures failed: some of the | |
158 | * requirements are just _too_ different. To get rid of the resulting | |
159 | * mess of board dependend #ifdef'ed code we now make the whole | |
160 | * initialization sequence configurable to the user. | |
161 | * | |
162 | * The requirements for any new initalization function is simple: it | |
163 | * receives a pointer to the "global data" structure as it's only | |
164 | * argument, and returns an integer return code, where 0 means | |
165 | * "continue" and != 0 means "fatal error, hang the system". | |
166 | */ | |
167 | typedef int (init_fnc_t) (void); | |
168 | ||
169 | /************************************************************************ | |
8ae158cd | 170 | * Init Utilities |
bf9e3b38 WD |
171 | ************************************************************************ |
172 | * Some of this code should be moved into the core functions, | |
173 | * but let's get it working (again) first... | |
174 | */ | |
175 | ||
176 | static int init_baudrate (void) | |
4e5ca3eb | 177 | { |
bf9e3b38 WD |
178 | uchar tmp[64]; /* long enough for environment variables */ |
179 | int i = getenv_r ("baudrate", tmp, sizeof (tmp)); | |
180 | ||
181 | gd->baudrate = (i > 0) | |
182 | ? (int) simple_strtoul (tmp, NULL, 10) | |
183 | : CONFIG_BAUDRATE; | |
184 | return (0); | |
185 | } | |
4e5ca3eb | 186 | |
bf9e3b38 | 187 | /***********************************************************************/ |
4e5ca3eb | 188 | |
bf9e3b38 WD |
189 | static int init_func_ram (void) |
190 | { | |
bf9e3b38 WD |
191 | int board_type = 0; /* use dummy arg */ |
192 | puts ("DRAM: "); | |
4e5ca3eb | 193 | |
bf9e3b38 WD |
194 | if ((gd->ram_size = initdram (board_type)) > 0) { |
195 | print_size (gd->ram_size, "\n"); | |
196 | return (0); | |
197 | } | |
198 | puts (failed); | |
199 | return (1); | |
4e5ca3eb WD |
200 | } |
201 | ||
bf9e3b38 WD |
202 | /***********************************************************************/ |
203 | ||
e2c22d78 SR |
204 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
205 | static int init_func_i2c (void) | |
206 | { | |
207 | puts ("I2C: "); | |
208 | i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE); | |
209 | puts ("ready\n"); | |
210 | return (0); | |
211 | } | |
212 | #endif | |
213 | ||
214 | /***********************************************************************/ | |
215 | ||
bf9e3b38 WD |
216 | /************************************************************************ |
217 | * Initialization sequence * | |
218 | ************************************************************************ | |
219 | */ | |
220 | ||
221 | init_fnc_t *init_sequence[] = { | |
d61ea148 | 222 | get_clocks, |
bf9e3b38 WD |
223 | env_init, |
224 | init_baudrate, | |
225 | serial_init, | |
226 | console_init_f, | |
227 | display_options, | |
228 | checkcpu, | |
229 | checkboard, | |
e2c22d78 SR |
230 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
231 | init_func_i2c, | |
232 | #endif | |
bf9e3b38 WD |
233 | init_func_ram, |
234 | #if defined(CFG_DRAM_TEST) | |
235 | testdram, | |
236 | #endif /* CFG_DRAM_TEST */ | |
237 | INIT_FUNC_WATCHDOG_INIT | |
238 | NULL, /* Terminate this list */ | |
239 | }; | |
240 | ||
241 | ||
4e5ca3eb WD |
242 | /************************************************************************ |
243 | * | |
244 | * This is the first part of the initialization sequence that is | |
245 | * implemented in C, but still running from ROM. | |
246 | * | |
247 | * The main purpose is to provide a (serial) console interface as | |
248 | * soon as possible (so we can see any error messages), and to | |
249 | * initialize the RAM so that we can relocate the monitor code to | |
250 | * RAM. | |
251 | * | |
252 | * Be aware of the restrictions: global data is read-only, BSS is not | |
253 | * initialized, and stack space is limited to a few kB. | |
254 | * | |
255 | ************************************************************************ | |
256 | */ | |
257 | ||
bf9e3b38 WD |
258 | void |
259 | board_init_f (ulong bootflag) | |
4e5ca3eb | 260 | { |
4e5ca3eb | 261 | bd_t *bd; |
bf9e3b38 | 262 | ulong len, addr, addr_sp; |
483a0cf8 | 263 | ulong *paddr; |
bf9e3b38 WD |
264 | gd_t *id; |
265 | init_fnc_t **init_fnc_ptr; | |
266 | #ifdef CONFIG_PRAM | |
267 | int i; | |
268 | ulong reg; | |
4e5ca3eb | 269 | uchar tmp[64]; /* long enough for environment variables */ |
bf9e3b38 | 270 | #endif |
4e5ca3eb | 271 | |
bf9e3b38 WD |
272 | /* Pointer is writable since we allocated a register for it */ |
273 | gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET); | |
93f6a677 WD |
274 | /* compiler optimization barrier needed for GCC >= 3.4 */ |
275 | __asm__ __volatile__("": : :"memory"); | |
4e5ca3eb | 276 | |
bf9e3b38 WD |
277 | /* Clear initial global data */ |
278 | memset ((void *) gd, 0, sizeof (gd_t)); | |
4e5ca3eb | 279 | |
bf9e3b38 WD |
280 | for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { |
281 | if ((*init_fnc_ptr)() != 0) { | |
282 | hang (); | |
283 | } | |
4e5ca3eb | 284 | } |
4e5ca3eb WD |
285 | |
286 | /* | |
287 | * Now that we have DRAM mapped and working, we can | |
288 | * relocate the code and continue running from DRAM. | |
289 | * | |
290 | * Reserve memory at end of RAM for (top down in that order): | |
bf9e3b38 WD |
291 | * - protected RAM |
292 | * - LCD framebuffer | |
293 | * - monitor code | |
294 | * - board info struct | |
4e5ca3eb | 295 | */ |
bf9e3b38 | 296 | len = (ulong)&_end - CFG_MONITOR_BASE; |
4e5ca3eb | 297 | |
bf9e3b38 | 298 | addr = CFG_SDRAM_BASE + gd->ram_size; |
4e5ca3eb | 299 | |
bf9e3b38 WD |
300 | #ifdef CONFIG_LOGBUFFER |
301 | /* reserve kernel log buffer */ | |
302 | addr -= (LOGBUFF_RESERVE); | |
303 | debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr); | |
304 | #endif | |
305 | ||
306 | #ifdef CONFIG_PRAM | |
307 | /* | |
308 | * reserve protected RAM | |
309 | */ | |
310 | i = getenv_r ("pram", tmp, sizeof (tmp)); | |
311 | reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM; | |
312 | addr -= (reg << 10); /* size is in kB */ | |
313 | debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr); | |
314 | #endif /* CONFIG_PRAM */ | |
4e5ca3eb | 315 | |
1552af70 TL |
316 | /* round down to next 4 kB limit */ |
317 | addr &= ~(4096 - 1); | |
318 | debug ("Top of RAM usable for U-Boot at: %08lx\n", addr); | |
319 | ||
320 | #ifdef CONFIG_LCD | |
321 | /* reserve memory for LCD display (always full pages) */ | |
322 | addr = lcd_setmem (addr); | |
323 | gd->fb_base = addr; | |
324 | #endif /* CONFIG_LCD */ | |
325 | ||
bf9e3b38 WD |
326 | /* |
327 | * reserve memory for U-Boot code, data & bss | |
328 | * round down to next 4 kB limit | |
329 | */ | |
4e5ca3eb | 330 | addr -= len; |
bf9e3b38 WD |
331 | addr &= ~(4096 - 1); |
332 | ||
333 | debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr); | |
4e5ca3eb WD |
334 | |
335 | /* | |
bf9e3b38 | 336 | * reserve memory for malloc() arena |
4e5ca3eb | 337 | */ |
bf9e3b38 WD |
338 | addr_sp = addr - TOTAL_MALLOC_LEN; |
339 | debug ("Reserving %dk for malloc() at: %08lx\n", | |
340 | TOTAL_MALLOC_LEN >> 10, addr_sp); | |
4e5ca3eb | 341 | |
bf9e3b38 WD |
342 | /* |
343 | * (permanently) allocate a Board Info struct | |
344 | * and a permanent copy of the "global" data | |
345 | */ | |
346 | addr_sp -= sizeof (bd_t); | |
347 | bd = (bd_t *) addr_sp; | |
348 | gd->bd = bd; | |
349 | debug ("Reserving %d Bytes for Board Info at: %08lx\n", | |
350 | sizeof (bd_t), addr_sp); | |
351 | addr_sp -= sizeof (gd_t); | |
352 | id = (gd_t *) addr_sp; | |
353 | debug ("Reserving %d Bytes for Global Data at: %08lx\n", | |
354 | sizeof (gd_t), addr_sp); | |
355 | ||
356 | /* Reserve memory for boot params. */ | |
357 | addr_sp -= CFG_BOOTPARAMS_LEN; | |
358 | bd->bi_boot_params = addr_sp; | |
359 | debug ("Reserving %dk for boot parameters at: %08lx\n", | |
360 | CFG_BOOTPARAMS_LEN >> 10, addr_sp); | |
4e5ca3eb | 361 | |
bf9e3b38 WD |
362 | /* |
363 | * Finally, we set up a new (bigger) stack. | |
364 | * | |
365 | * Leave some safety gap for SP, force alignment on 16 byte boundary | |
366 | * Clear initial stack frame | |
367 | */ | |
368 | addr_sp -= 16; | |
369 | addr_sp &= ~0xF; | |
483a0cf8 MB |
370 | |
371 | paddr = (ulong *)addr_sp; | |
372 | *paddr-- = 0; | |
373 | *paddr-- = 0; | |
374 | addr_sp = (ulong)paddr; | |
977b50f8 | 375 | |
bf9e3b38 | 376 | debug ("Stack Pointer at: %08lx\n", addr_sp); |
4e5ca3eb | 377 | |
bf9e3b38 WD |
378 | /* |
379 | * Save local variables to board info struct | |
380 | */ | |
381 | bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */ | |
382 | bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */ | |
8e585f02 TL |
383 | #ifdef CFG_INIT_RAM_ADDR |
384 | bd->bi_sramstart = CFG_INIT_RAM_ADDR; /* start of SRAM memory */ | |
385 | bd->bi_sramsize = CFG_INIT_RAM_END; /* size of SRAM memory */ | |
386 | #endif | |
bf9e3b38 WD |
387 | bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */ |
388 | ||
389 | bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */ | |
390 | ||
391 | WATCHDOG_RESET (); | |
392 | bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ | |
393 | bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ | |
8ae158cd TL |
394 | #ifdef CONFIG_PCI |
395 | bd->bi_pcifreq = gd->pci_clk; /* PCI Freq in Hz */ | |
396 | #endif | |
397 | #ifdef CONFIG_EXTRA_CLOCK | |
398 | bd->bi_inpfreq = gd->inp_clk; /* input Freq in Hz */ | |
399 | bd->bi_vcofreq = gd->vco_clk; /* vco Freq in Hz */ | |
400 | bd->bi_flbfreq = gd->flb_clk; /* flexbus Freq in Hz */ | |
401 | #endif | |
bf9e3b38 | 402 | bd->bi_baudrate = gd->baudrate; /* Console Baudrate */ |
4e5ca3eb WD |
403 | |
404 | #ifdef CFG_EXTBDINFO | |
405 | strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version)); | |
bf9e3b38 WD |
406 | strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version)); |
407 | #endif | |
408 | ||
409 | WATCHDOG_RESET (); | |
4e5ca3eb | 410 | |
bf9e3b38 WD |
411 | #ifdef CONFIG_POST |
412 | post_bootmode_init(); | |
413 | post_run (NULL, POST_ROM | post_bootmode_get(0)); | |
4e5ca3eb WD |
414 | #endif |
415 | ||
bf9e3b38 | 416 | WATCHDOG_RESET(); |
4e5ca3eb | 417 | |
bf9e3b38 WD |
418 | memcpy (id, (void *)gd, sizeof (gd_t)); |
419 | ||
420 | debug ("Start relocate of code from %08x to %08lx\n", CFG_MONITOR_BASE, addr); | |
421 | relocate_code (addr_sp, id, addr); | |
4e5ca3eb | 422 | |
bf9e3b38 WD |
423 | /* NOTREACHED - jump_to_ram() does not return */ |
424 | } | |
4e5ca3eb WD |
425 | |
426 | /************************************************************************ | |
427 | * | |
428 | * This is the next part if the initialization sequence: we are now | |
429 | * running from RAM and have a "normal" C environment, i. e. global | |
430 | * data can be written, BSS has been cleared, the stack size in not | |
431 | * that critical any more, etc. | |
432 | * | |
433 | ************************************************************************ | |
434 | */ | |
bf9e3b38 | 435 | void board_init_r (gd_t *id, ulong dest_addr) |
4e5ca3eb | 436 | { |
4e5ca3eb | 437 | cmd_tbl_t *cmdtp; |
bf9e3b38 | 438 | char *s, *e; |
4e5ca3eb | 439 | bd_t *bd; |
bf9e3b38 WD |
440 | int i; |
441 | extern void malloc_bin_reloc (void); | |
4e5ca3eb | 442 | |
bf9e3b38 WD |
443 | #ifndef CFG_ENV_IS_NOWHERE |
444 | extern char * env_name_spec; | |
445 | #endif | |
446 | #ifndef CFG_NO_FLASH | |
447 | ulong flash_size; | |
448 | #endif | |
449 | gd = id; /* initialize RAM version of global data */ | |
4e5ca3eb | 450 | bd = gd->bd; |
bf9e3b38 WD |
451 | |
452 | gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ | |
453 | ||
8e585f02 TL |
454 | #ifdef CONFIG_SERIAL_MULTI |
455 | serial_initialize(); | |
456 | #endif | |
457 | ||
bf9e3b38 WD |
458 | debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr); |
459 | ||
460 | WATCHDOG_RESET (); | |
461 | ||
462 | gd->reloc_off = dest_addr - CFG_MONITOR_BASE; | |
463 | ||
464 | monitor_flash_len = (ulong)&__init_end - dest_addr; | |
465 | ||
466 | /* | |
467 | * We have to relocate the command table manually | |
468 | */ | |
469 | for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) { | |
470 | ulong addr; | |
471 | addr = (ulong) (cmdtp->cmd) + gd->reloc_off; | |
472 | #if 0 | |
473 | printf ("Command \"%s\": 0x%08lx => 0x%08lx\n", | |
474 | cmdtp->name, (ulong) (cmdtp->cmd), addr); | |
475 | #endif | |
476 | cmdtp->cmd = | |
477 | (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr; | |
478 | ||
479 | addr = (ulong)(cmdtp->name) + gd->reloc_off; | |
480 | cmdtp->name = (char *)addr; | |
481 | ||
482 | if (cmdtp->usage) { | |
483 | addr = (ulong)(cmdtp->usage) + gd->reloc_off; | |
484 | cmdtp->usage = (char *)addr; | |
485 | } | |
486 | #ifdef CFG_LONGHELP | |
487 | if (cmdtp->help) { | |
488 | addr = (ulong)(cmdtp->help) + gd->reloc_off; | |
489 | cmdtp->help = (char *)addr; | |
490 | } | |
491 | #endif | |
492 | } | |
493 | /* there are some other pointer constants we must deal with */ | |
494 | #ifndef CFG_ENV_IS_NOWHERE | |
495 | env_name_spec += gd->reloc_off; | |
496 | #endif | |
497 | ||
498 | WATCHDOG_RESET (); | |
499 | ||
500 | #ifdef CONFIG_LOGBUFFER | |
501 | logbuff_init_ptrs (); | |
502 | #endif | |
503 | #ifdef CONFIG_POST | |
504 | post_output_backlog (); | |
505 | post_reloc (); | |
506 | #endif | |
507 | WATCHDOG_RESET(); | |
508 | ||
509 | #if 0 | |
510 | /* instruction cache enabled in cpu_init_f() for faster relocation */ | |
511 | icache_enable (); /* it's time to enable the instruction cache */ | |
512 | #endif | |
4e5ca3eb WD |
513 | |
514 | /* | |
515 | * Setup trap handlers | |
516 | */ | |
8e585f02 | 517 | trap_init (CFG_SDRAM_BASE); |
4e5ca3eb | 518 | |
bf9e3b38 | 519 | #if !defined(CFG_NO_FLASH) |
4e5ca3eb WD |
520 | puts ("FLASH: "); |
521 | ||
522 | if ((flash_size = flash_init ()) > 0) { | |
bf9e3b38 WD |
523 | # ifdef CFG_FLASH_CHECKSUM |
524 | print_size (flash_size, ""); | |
4e5ca3eb WD |
525 | /* |
526 | * Compute and print flash CRC if flashchecksum is set to 'y' | |
527 | * | |
bf9e3b38 | 528 | * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX |
4e5ca3eb WD |
529 | */ |
530 | s = getenv ("flashchecksum"); | |
531 | if (s && (*s == 'y')) { | |
532 | printf (" CRC: %08lX", | |
bf9e3b38 WD |
533 | crc32 (0, |
534 | (const unsigned char *) CFG_FLASH_BASE, | |
535 | flash_size) | |
536 | ); | |
4e5ca3eb WD |
537 | } |
538 | putc ('\n'); | |
bf9e3b38 WD |
539 | # else /* !CFG_FLASH_CHECKSUM */ |
540 | print_size (flash_size, "\n"); | |
541 | # endif /* CFG_FLASH_CHECKSUM */ | |
4e5ca3eb WD |
542 | } else { |
543 | puts (failed); | |
544 | hang (); | |
545 | } | |
546 | ||
bf9e3b38 WD |
547 | bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */ |
548 | bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */ | |
549 | bd->bi_flashoffset = 0; | |
550 | #else /* CFG_NO_FLASH */ | |
551 | bd->bi_flashsize = 0; | |
552 | bd->bi_flashstart = 0; | |
553 | bd->bi_flashoffset = 0; | |
554 | #endif /* !CFG_NO_FLASH */ | |
4e5ca3eb WD |
555 | |
556 | WATCHDOG_RESET (); | |
557 | ||
558 | /* initialize higher level parts of CPU like time base and timers */ | |
559 | cpu_init_r (); | |
560 | ||
561 | WATCHDOG_RESET (); | |
562 | ||
563 | /* initialize malloc() area */ | |
bf9e3b38 WD |
564 | mem_malloc_init (); |
565 | malloc_bin_reloc (); | |
4e5ca3eb WD |
566 | |
567 | #ifdef CONFIG_SPI | |
568 | # if !defined(CFG_ENV_IS_IN_EEPROM) | |
569 | spi_init_f (); | |
570 | # endif | |
571 | spi_init_r (); | |
572 | #endif | |
573 | ||
574 | /* relocate environment function pointers etc. */ | |
575 | env_relocate (); | |
576 | ||
bf9e3b38 WD |
577 | /* |
578 | * Fill in missing fields of bd_info. | |
579 | * We do this here, where we have "normal" access to the | |
580 | * environment; we used to do this still running from ROM, | |
581 | * where had to use getenv_r(), which can be pretty slow when | |
582 | * the environment is in EEPROM. | |
583 | */ | |
584 | s = getenv ("ethaddr"); | |
585 | for (i = 0; i < 6; ++i) { | |
586 | bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0; | |
587 | if (s) | |
588 | s = (*e) ? e + 1 : e; | |
589 | } | |
8e585f02 TL |
590 | #ifdef CONFIG_HAS_ETH1 |
591 | /* handle the 2nd ethernet address */ | |
592 | ||
593 | s = getenv ("eth1addr"); | |
594 | for (i = 0; i < 6; ++i) { | |
595 | bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0; | |
596 | if (s) | |
597 | s = (*e) ? e + 1 : e; | |
598 | } | |
599 | #endif | |
600 | #ifdef CONFIG_HAS_ETH2 | |
601 | /* handle the 3rd ethernet address */ | |
602 | ||
603 | s = getenv ("eth2addr"); | |
604 | for (i = 0; i < 6; ++i) { | |
605 | bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0; | |
606 | if (s) | |
607 | s = (*e) ? e + 1 : e; | |
608 | } | |
609 | #endif | |
610 | ||
611 | #ifdef CONFIG_HAS_ETH3 | |
612 | /* handle 4th ethernet address */ | |
613 | s = getenv("eth3addr"); | |
614 | for (i = 0; i < 6; ++i) { | |
615 | bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0; | |
616 | if (s) | |
617 | s = (*e) ? e + 1 : e; | |
618 | } | |
619 | #endif | |
bf9e3b38 | 620 | |
4e5ca3eb WD |
621 | /* IP Address */ |
622 | bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); | |
623 | ||
624 | WATCHDOG_RESET (); | |
625 | ||
8e585f02 TL |
626 | #if defined(CONFIG_PCI) |
627 | /* | |
628 | * Do pci configuration | |
629 | */ | |
630 | pci_init (); | |
631 | #endif | |
4e5ca3eb | 632 | |
bf9e3b38 WD |
633 | /** leave this here (after malloc(), environment and PCI are working) **/ |
634 | /* Initialize devices */ | |
635 | devices_init (); | |
4e5ca3eb | 636 | |
bf9e3b38 WD |
637 | /* Initialize the jump table for applications */ |
638 | jumptable_init (); | |
4e5ca3eb | 639 | |
bf9e3b38 WD |
640 | /* Initialize the console (after the relocation and devices init) */ |
641 | console_init_r (); | |
4e5ca3eb | 642 | |
e2c22d78 SR |
643 | #if defined(CONFIG_MISC_INIT_R) |
644 | /* miscellaneous platform dependent initialisations */ | |
645 | misc_init_r (); | |
646 | #endif | |
647 | ||
7def6b34 | 648 | #if defined(CONFIG_CMD_KGDB) |
4e5ca3eb WD |
649 | WATCHDOG_RESET (); |
650 | puts ("KGDB: "); | |
651 | kgdb_init (); | |
652 | #endif | |
653 | ||
bf9e3b38 WD |
654 | debug ("U-Boot relocated to %08lx\n", dest_addr); |
655 | ||
4e5ca3eb WD |
656 | /* |
657 | * Enable Interrupts | |
658 | */ | |
659 | interrupt_init (); | |
bf9e3b38 WD |
660 | |
661 | /* Must happen after interrupts are initialized since | |
662 | * an irq handler gets installed | |
663 | */ | |
664 | timer_init(); | |
665 | ||
42dfe7a1 | 666 | #ifdef CONFIG_SERIAL_SOFTWARE_FIFO |
bf9e3b38 WD |
667 | serial_buffered_init(); |
668 | #endif | |
669 | ||
670 | #ifdef CONFIG_STATUS_LED | |
671 | status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING); | |
672 | #endif | |
673 | ||
4e5ca3eb | 674 | udelay (20); |
bf9e3b38 | 675 | |
4e5ca3eb WD |
676 | set_timer (0); |
677 | ||
678 | /* Insert function pointers now that we have relocated the code */ | |
679 | ||
680 | /* Initialize from environment */ | |
681 | if ((s = getenv ("loadaddr")) != NULL) { | |
682 | load_addr = simple_strtoul (s, NULL, 16); | |
683 | } | |
7def6b34 | 684 | #if defined(CONFIG_CMD_NET) |
4e5ca3eb WD |
685 | if ((s = getenv ("bootfile")) != NULL) { |
686 | copy_filename (BootFile, s, sizeof (BootFile)); | |
687 | } | |
b3aff0cb | 688 | #endif |
4e5ca3eb WD |
689 | |
690 | WATCHDOG_RESET (); | |
691 | ||
7def6b34 | 692 | #if defined(CONFIG_CMD_DOC) |
bf9e3b38 WD |
693 | WATCHDOG_RESET (); |
694 | puts ("DOC: "); | |
695 | doc_init (); | |
696 | #endif | |
697 | ||
7def6b34 | 698 | #if defined(CONFIG_CMD_NAND) |
4e5ca3eb | 699 | WATCHDOG_RESET (); |
d860c34f | 700 | puts ("NAND: "); |
bf9e3b38 WD |
701 | nand_init(); /* go init the NAND */ |
702 | #endif | |
703 | ||
d61ea148 | 704 | #if defined(CONFIG_CMD_NET) |
bf9e3b38 | 705 | WATCHDOG_RESET(); |
8e585f02 | 706 | #if defined(FEC_ENET) |
bf9e3b38 WD |
707 | eth_init(bd); |
708 | #endif | |
8e585f02 TL |
709 | #if defined(CONFIG_NET_MULTI) |
710 | puts ("Net: "); | |
ab77bc54 | 711 | eth_initialize (bd); |
8e585f02 TL |
712 | #endif |
713 | #endif | |
bf9e3b38 WD |
714 | |
715 | #ifdef CONFIG_POST | |
716 | post_run (NULL, POST_RAM | post_bootmode_get(0)); | |
4e5ca3eb WD |
717 | #endif |
718 | ||
d61ea148 SR |
719 | #if defined(CONFIG_CMD_PCMCIA) \ |
720 | && !defined(CONFIG_CMD_IDE) | |
8e585f02 TL |
721 | WATCHDOG_RESET (); |
722 | puts ("PCMCIA:"); | |
723 | pcmcia_init (); | |
724 | #endif | |
725 | ||
d61ea148 | 726 | #if defined(CONFIG_CMD_IDE) |
8e585f02 TL |
727 | WATCHDOG_RESET (); |
728 | puts ("IDE: "); | |
729 | ide_init (); | |
d61ea148 | 730 | #endif |
8e585f02 | 731 | |
4e5ca3eb WD |
732 | #ifdef CONFIG_LAST_STAGE_INIT |
733 | WATCHDOG_RESET (); | |
734 | /* | |
735 | * Some parts can be only initialized if all others (like | |
736 | * Interrupts) are up and running (i.e. the PC-style ISA | |
737 | * keyboard). | |
738 | */ | |
739 | last_stage_init (); | |
740 | #endif | |
741 | ||
7def6b34 | 742 | #if defined(CONFIG_CMD_BEDBUG) |
4e5ca3eb WD |
743 | WATCHDOG_RESET (); |
744 | bedbug_init (); | |
745 | #endif | |
746 | ||
bf9e3b38 | 747 | #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) |
4e5ca3eb WD |
748 | /* |
749 | * Export available size of memory for Linux, | |
750 | * taking into account the protected RAM at top of memory | |
751 | */ | |
752 | { | |
753 | ulong pram; | |
4e5ca3eb | 754 | uchar memsz[32]; |
bf9e3b38 WD |
755 | #ifdef CONFIG_PRAM |
756 | char *s; | |
4e5ca3eb WD |
757 | |
758 | if ((s = getenv ("pram")) != NULL) { | |
759 | pram = simple_strtoul (s, NULL, 10); | |
760 | } else { | |
761 | pram = CONFIG_PRAM; | |
762 | } | |
bf9e3b38 WD |
763 | #else |
764 | pram=0; | |
765 | #endif | |
766 | #ifdef CONFIG_LOGBUFFER | |
767 | /* Also take the logbuffer into account (pram is in kB) */ | |
768 | pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024; | |
769 | #endif | |
4e5ca3eb WD |
770 | sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram); |
771 | setenv ("mem", memsz); | |
772 | } | |
773 | #endif | |
774 | ||
bf9e3b38 WD |
775 | #ifdef CONFIG_MODEM_SUPPORT |
776 | { | |
777 | extern int do_mdm_init; | |
778 | do_mdm_init = gd->do_mdm_init; | |
779 | } | |
780 | #endif | |
781 | ||
782 | #ifdef CONFIG_WATCHDOG | |
783 | /* disable watchdog if environment is set */ | |
784 | if ((s = getenv ("watchdog")) != NULL) { | |
785 | if (strncmp (s, "off", 3) == 0) { | |
786 | WATCHDOG_DISABLE (); | |
787 | } | |
788 | } | |
789 | #endif /* CONFIG_WATCHDOG*/ | |
790 | ||
791 | ||
4e5ca3eb WD |
792 | /* Initialization complete - start the monitor */ |
793 | ||
794 | /* main_loop() can return to retry autoboot, if so just run it again. */ | |
795 | for (;;) { | |
796 | WATCHDOG_RESET (); | |
797 | main_loop (); | |
798 | } | |
799 | ||
800 | /* NOTREACHED - no way out of command loop except booting */ | |
801 | } | |
802 | ||
bf9e3b38 WD |
803 | |
804 | void hang(void) | |
4e5ca3eb WD |
805 | { |
806 | puts ("### ERROR ### Please RESET the board ###\n"); | |
807 | for (;;); | |
808 | } |