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[people/ms/u-boot.git] / lib_ppc / board.c
1 /*
2 * (C) Copyright 2000-2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
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 <common.h>
25 #include <watchdog.h>
26 #include <command.h>
27 #include <malloc.h>
28 #include <devices.h>
29 #include <syscall.h>
30 #ifdef CONFIG_8xx
31 #include <mpc8xx.h>
32 #endif
33 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
34 #include <ide.h>
35 #endif
36 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
37 #include <scsi.h>
38 #endif
39 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
40 #include <kgdb.h>
41 #endif
42 #ifdef CONFIG_STATUS_LED
43 #include <status_led.h>
44 #endif
45 #include <net.h>
46 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
47 #include <cmd_bedbug.h>
48 #endif
49 #ifdef CFG_ALLOC_DPRAM
50 #include <commproc.h>
51 #endif
52 #include <version.h>
53 #if defined(CONFIG_BAB7xx)
54 #include <w83c553f.h>
55 #endif
56 #include <dtt.h>
57 #if defined(CONFIG_POST)
58 #include <post.h>
59 #endif
60 #if defined(CONFIG_LOGBUFFER)
61 #include <logbuff.h>
62 #endif
63
64 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
65 void doc_init (void);
66 #endif
67 #if defined(CONFIG_HARD_I2C) || \
68 defined(CONFIG_SOFT_I2C)
69 #include <i2c.h>
70 #endif
71
72 static char *failed = "*** failed ***\n";
73
74 #if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
75 extern flash_info_t flash_info[];
76 #endif
77
78 #include <environment.h>
79
80 #if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
81 (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
82 defined(CFG_ENV_IS_IN_NVRAM)
83 #define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
84 #else
85 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
86 #endif
87
88 /*
89 * Begin and End of memory area for malloc(), and current "brk"
90 */
91 static ulong mem_malloc_start = 0;
92 static ulong mem_malloc_end = 0;
93 static ulong mem_malloc_brk = 0;
94
95 /************************************************************************
96 * Utilities *
97 ************************************************************************
98 */
99
100 /*
101 * The Malloc area is immediately below the monitor copy in DRAM
102 */
103 static void mem_malloc_init (void)
104 {
105 DECLARE_GLOBAL_DATA_PTR;
106
107 ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
108
109 mem_malloc_end = dest_addr;
110 mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
111 mem_malloc_brk = mem_malloc_start;
112
113 memset ((void *) mem_malloc_start,
114 0,
115 mem_malloc_end - mem_malloc_start);
116 }
117
118 void *sbrk (ptrdiff_t increment)
119 {
120 ulong old = mem_malloc_brk;
121 ulong new = old + increment;
122
123 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
124 return (NULL);
125 }
126 mem_malloc_brk = new;
127 return ((void *) old);
128 }
129
130 char *strmhz (char *buf, long hz)
131 {
132 long l, n;
133 long m;
134
135 n = hz / 1000000L;
136 l = sprintf (buf, "%ld", n);
137 m = (hz % 1000000L) / 1000L;
138 if (m != 0)
139 sprintf (buf + l, ".%03ld", m);
140 return (buf);
141 }
142
143 static void syscalls_init (void)
144 {
145 ulong *addr;
146
147 syscall_tbl[SYSCALL_MALLOC] = (void *) malloc;
148 syscall_tbl[SYSCALL_FREE] = (void *) free;
149
150 syscall_tbl[SYSCALL_INSTALL_HDLR] = (void *) irq_install_handler;
151 syscall_tbl[SYSCALL_FREE_HDLR] = (void *) irq_free_handler;
152 syscall_tbl[SYSCALL_GET_TIMER] = (void *)get_timer;
153 syscall_tbl[SYSCALL_UDELAY] = (void *)udelay;
154
155 addr = (ulong *) 0xc00; /* syscall ISR addr */
156
157 /* patch ISR code */
158 *addr++ |= (ulong) syscall_tbl >> 16;
159 *addr++ |= (ulong) syscall_tbl & 0xFFFF;
160 *addr++ |= NR_SYSCALLS >> 16;
161 *addr++ |= NR_SYSCALLS & 0xFFFF;
162
163 flush_cache (0x0C00, 0x10);
164
165 /* Initialize syscalls stack pointer */
166 addr = (ulong *) 0xCFC;
167 *addr = (ulong)addr;
168 flush_cache ((ulong)addr, 0x10);
169 }
170
171 /*
172 * All attempts to come up with a "common" initialization sequence
173 * that works for all boards and architectures failed: some of the
174 * requirements are just _too_ different. To get rid of the resulting
175 * mess of board dependend #ifdef'ed code we now make the whole
176 * initialization sequence configurable to the user.
177 *
178 * The requirements for any new initalization function is simple: it
179 * receives a pointer to the "global data" structure as it's only
180 * argument, and returns an integer return code, where 0 means
181 * "continue" and != 0 means "fatal error, hang the system".
182 */
183 typedef int (init_fnc_t) (void);
184
185 /************************************************************************
186 * Init Utilities *
187 ************************************************************************
188 * Some of this code should be moved into the core functions,
189 * but let's get it working (again) first...
190 */
191
192 static int init_baudrate (void)
193 {
194 DECLARE_GLOBAL_DATA_PTR;
195
196 uchar tmp[64]; /* long enough for environment variables */
197 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
198
199 gd->baudrate = (i > 0)
200 ? (int) simple_strtoul (tmp, NULL, 10)
201 : CONFIG_BAUDRATE;
202
203 return (0);
204 }
205
206 /***********************************************************************/
207
208 static int init_func_ram (void)
209 {
210 DECLARE_GLOBAL_DATA_PTR;
211
212 #ifdef CONFIG_BOARD_TYPES
213 int board_type = gd->board_type;
214 #else
215 int board_type = 0; /* use dummy arg */
216 #endif
217 puts ("DRAM: ");
218
219 if ((gd->ram_size = initdram (board_type)) > 0) {
220 print_size (gd->ram_size, "\n");
221 return (0);
222 }
223 puts (failed);
224 return (1);
225 }
226
227 /***********************************************************************/
228
229 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
230 static int init_func_i2c (void)
231 {
232 puts ("I2C: ");
233 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
234 puts ("ready\n");
235 return (0);
236 }
237 #endif
238
239 /***********************************************************************/
240
241 #if defined(CONFIG_WATCHDOG)
242 static int init_func_watchdog_init (void)
243 {
244 puts (" Watchdog enabled\n");
245 WATCHDOG_RESET ();
246 return (0);
247 }
248 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
249
250 static int init_func_watchdog_reset (void)
251 {
252 WATCHDOG_RESET ();
253 return (0);
254 }
255 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
256 #else
257 # define INIT_FUNC_WATCHDOG_INIT /* undef */
258 # define INIT_FUNC_WATCHDOG_RESET /* undef */
259 #endif /* CONFIG_WATCHDOG */
260
261 /************************************************************************
262 * Initialization sequence *
263 ************************************************************************
264 */
265
266 init_fnc_t *init_sequence[] = {
267
268 #if defined(CONFIG_BOARD_PRE_INIT)
269 board_pre_init, /* very early board init code (fpga boot, etc.) */
270 #endif
271
272 get_clocks, /* get CPU and bus clocks (etc.) */
273 init_timebase,
274 #ifdef CFG_ALLOC_DPRAM
275 dpram_init,
276 #endif
277 #if defined(CONFIG_BOARD_POSTCLK_INIT)
278 board_postclk_init,
279 #endif
280 env_init,
281 init_baudrate,
282 serial_init,
283 console_init_f,
284 display_options,
285 #if defined(CONFIG_8260)
286 prt_8260_rsr,
287 prt_8260_clks,
288 #endif /* CONFIG_8260 */
289 checkcpu,
290 checkboard,
291 INIT_FUNC_WATCHDOG_INIT
292 #if defined(CONFIG_BMW) || \
293 defined(CONFIG_COGENT) || \
294 defined(CONFIG_HYMOD) || \
295 defined(CONFIG_RSD_PROTO) || \
296 defined(CONFIG_W7O)
297 misc_init_f,
298 #endif
299 INIT_FUNC_WATCHDOG_RESET
300 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
301 init_func_i2c,
302 #endif
303 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
304 dtt_init,
305 #endif
306 INIT_FUNC_WATCHDOG_RESET
307 init_func_ram,
308 #if defined(CFG_DRAM_TEST)
309 testdram,
310 #endif /* CFG_DRAM_TEST */
311 INIT_FUNC_WATCHDOG_RESET
312
313 NULL, /* Terminate this list */
314 };
315
316 /************************************************************************
317 *
318 * This is the first part of the initialization sequence that is
319 * implemented in C, but still running from ROM.
320 *
321 * The main purpose is to provide a (serial) console interface as
322 * soon as possible (so we can see any error messages), and to
323 * initialize the RAM so that we can relocate the monitor code to
324 * RAM.
325 *
326 * Be aware of the restrictions: global data is read-only, BSS is not
327 * initialized, and stack space is limited to a few kB.
328 *
329 ************************************************************************
330 */
331
332 void board_init_f (ulong bootflag)
333 {
334 DECLARE_GLOBAL_DATA_PTR;
335
336 bd_t *bd;
337 ulong len, addr, addr_sp;
338 gd_t *id;
339 init_fnc_t **init_fnc_ptr;
340 #ifdef CONFIG_PRAM
341 int i;
342 ulong reg;
343 uchar tmp[64]; /* long enough for environment variables */
344 #endif
345
346 /* Pointer is writable since we allocated a register for it */
347 gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
348
349 #ifndef CONFIG_8260
350 /* Clear initial global data */
351 memset ((void *) gd, 0, sizeof (gd_t));
352 #endif
353
354 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
355 if ((*init_fnc_ptr) () != 0) {
356 hang ();
357 }
358 }
359
360 /*
361 * Now that we have DRAM mapped and working, we can
362 * relocate the code and continue running from DRAM.
363 *
364 * Reserve memory at end of RAM for (top down in that order):
365 * - kernel log buffer
366 * - protected RAM
367 * - LCD framebuffer
368 * - monitor code
369 * - board info struct
370 */
371 len = get_endaddr () - CFG_MONITOR_BASE;
372
373 if (len > CFG_MONITOR_LEN) {
374 printf ("*** U-Boot size %ld > reserved memory (%d)\n",
375 len, CFG_MONITOR_LEN);
376 hang ();
377 }
378
379 if (CFG_MONITOR_LEN > len)
380 len = CFG_MONITOR_LEN;
381
382 #ifndef CONFIG_VERY_BIG_RAM
383 addr = CFG_SDRAM_BASE + gd->ram_size;
384 #else
385 /* only allow stack below 256M */
386 addr = CFG_SDRAM_BASE +
387 (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
388 #endif
389
390 #ifdef CONFIG_LOGBUFFER
391 /* reserve kernel log buffer */
392 addr -= (LOGBUFF_RESERVE);
393 # ifdef DEBUG
394 printf ("Reserving %ldk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
395 # endif
396 #endif
397
398 #ifdef CONFIG_PRAM
399 /*
400 * reserve protected RAM
401 */
402 i = getenv_r ("pram", tmp, sizeof (tmp));
403 reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
404 addr -= (reg << 10); /* size is in kB */
405 # ifdef DEBUG
406 printf ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
407 # endif
408 #endif /* CONFIG_PRAM */
409
410 /* round down to next 4 kB limit */
411 addr &= ~(4096 - 1);
412 #ifdef DEBUG
413 printf ("Top of RAM usable for U-Boot at: %08lx\n", addr);
414 #endif
415
416 #ifdef CONFIG_LCD
417 /* reserve memory for LCD display (always full pages) */
418 addr = lcd_setmem (addr);
419 gd->fb_base = addr;
420 #endif /* CONFIG_LCD */
421
422 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
423 /* reserve memory for video display (always full pages) */
424 addr = video_setmem (addr);
425 gd->fb_base = addr;
426 #endif /* CONFIG_VIDEO */
427
428 /*
429 * reserve memory for U-Boot code, data & bss
430 * round down to next 4 kB limit
431 */
432 addr -= len;
433 addr &= ~(4096 - 1);
434
435 #ifdef DEBUG
436 printf ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
437 #endif
438
439 #ifdef CONFIG_AMIGAONEG3SE
440 gd->relocaddr = addr;
441 #endif
442
443 /*
444 * reserve memory for malloc() arena
445 */
446 addr_sp = addr - TOTAL_MALLOC_LEN;
447 #ifdef DEBUG
448 printf ("Reserving %dk for malloc() at: %08lx\n",
449 TOTAL_MALLOC_LEN >> 10, addr_sp);
450 #endif
451
452 /*
453 * (permanently) allocate a Board Info struct
454 * and a permanent copy of the "global" data
455 */
456 addr_sp -= sizeof (bd_t);
457 bd = (bd_t *) addr_sp;
458 gd->bd = bd;
459 #ifdef DEBUG
460 printf ("Reserving %d Bytes for Board Info at: %08lx\n",
461 sizeof (bd_t), addr_sp);
462 #endif
463 addr_sp -= sizeof (gd_t);
464 id = (gd_t *) addr_sp;
465 #ifdef DEBUG
466 printf ("Reserving %d Bytes for Global Data at: %08lx\n",
467 sizeof (gd_t), addr_sp);
468 #endif
469
470 /*
471 * Finally, we set up a new (bigger) stack.
472 *
473 * Leave some safety gap for SP, force alignment on 16 byte boundary
474 * Clear initial stack frame
475 */
476 addr_sp -= 16;
477 addr_sp &= ~0xF;
478 *((ulong *) addr_sp)-- = 0;
479 *((ulong *) addr_sp)-- = 0;
480 #ifdef DEBUG
481 printf ("Stack Pointer at: %08lx\n", addr_sp);
482 #endif
483
484 /*
485 * Save local variables to board info struct
486 */
487
488 bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
489 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
490
491 #ifdef CONFIG_IP860
492 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
493 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
494 #else
495 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
496 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
497 #endif
498
499 #if defined(CONFIG_8xx) || defined(CONFIG_8260)
500 bd->bi_immr_base = CFG_IMMR; /* base of IMMR register */
501 #endif
502
503 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
504
505 WATCHDOG_RESET ();
506 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
507 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
508 #if defined(CONFIG_8260)
509 bd->bi_cpmfreq = gd->cpm_clk;
510 bd->bi_brgfreq = gd->brg_clk;
511 bd->bi_sccfreq = gd->scc_clk;
512 bd->bi_vco = gd->vco_out;
513 #endif /* CONFIG_8260 */
514
515 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
516
517 #ifdef CFG_EXTBDINFO
518 strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
519 strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
520
521 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
522 bd->bi_plb_busfreq = gd->bus_clk;
523 #ifdef CONFIG_405GP
524 bd->bi_pci_busfreq = get_PCI_freq ();
525 #endif
526 #endif
527
528 #ifdef DEBUG
529 printf ("New Stack Pointer is: %08lx\n", addr_sp);
530 #endif
531
532 WATCHDOG_RESET ();
533
534 #ifdef CONFIG_POST
535 post_bootmode_init();
536 post_run (NULL, POST_ROM | post_bootmode_get(0));
537 #endif
538
539 WATCHDOG_RESET();
540
541 memcpy (id, gd, sizeof (gd_t));
542
543 relocate_code (addr_sp, id, addr);
544
545 /* NOTREACHED - relocate_code() does not return */
546 }
547
548
549 /************************************************************************
550 *
551 * This is the next part if the initialization sequence: we are now
552 * running from RAM and have a "normal" C environment, i. e. global
553 * data can be written, BSS has been cleared, the stack size in not
554 * that critical any more, etc.
555 *
556 ************************************************************************
557 */
558
559 void board_init_r (gd_t *id, ulong dest_addr)
560 {
561 DECLARE_GLOBAL_DATA_PTR;
562
563 cmd_tbl_t *cmdtp;
564 char *s, *e;
565 bd_t *bd;
566 int i;
567 extern void malloc_bin_reloc (void);
568 #ifndef CFG_ENV_IS_NOWHERE
569 extern char * env_name_spec;
570 #endif
571
572 #ifndef CFG_NO_FLASH
573 ulong flash_size;
574 #endif
575
576 gd = id; /* initialize RAM version of global data */
577 bd = gd->bd;
578
579 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
580
581 #ifdef DEBUG
582 printf ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
583 #endif
584
585 WATCHDOG_RESET ();
586
587 gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
588
589 /*
590 * We have to relocate the command table manually
591 */
592 for (cmdtp = &cmd_tbl[0]; cmdtp->name; cmdtp++) {
593 ulong addr;
594
595 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
596 #if 0
597 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
598 cmdtp->name, (ulong) (cmdtp->cmd), addr);
599 #endif
600 cmdtp->cmd =
601 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
602
603 addr = (ulong)(cmdtp->name) + gd->reloc_off;
604 cmdtp->name = (char *)addr;
605
606 if (cmdtp->usage) {
607 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
608 cmdtp->usage = (char *)addr;
609 }
610 #ifdef CFG_LONGHELP
611 if (cmdtp->help) {
612 addr = (ulong)(cmdtp->help) + gd->reloc_off;
613 cmdtp->help = (char *)addr;
614 }
615 #endif
616 }
617 /* there are some other pointer constants we must deal with */
618 #ifndef CFG_ENV_IS_NOWHERE
619 env_name_spec += gd->reloc_off;
620 #endif
621
622 WATCHDOG_RESET ();
623
624 #ifdef CONFIG_LOGBUFFER
625 logbuff_init_ptrs ();
626 #endif
627 #ifdef CONFIG_POST
628 post_output_backlog ();
629 post_reloc ();
630 #endif
631
632 WATCHDOG_RESET();
633
634 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM)
635 icache_enable (); /* it's time to enable the instruction cache */
636 #endif
637
638 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
639 /*
640 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
641 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
642 * bridge there.
643 */
644 pci_init ();
645 #endif
646 #if defined(CONFIG_BAB7xx)
647 /*
648 * Initialise the ISA bridge
649 */
650 initialise_w83c553f ();
651 #endif
652
653 asm ("sync ; isync");
654
655 /*
656 * Setup trap handlers
657 */
658 trap_init (dest_addr);
659
660 #if !defined(CFG_NO_FLASH)
661 puts ("FLASH: ");
662
663 if ((flash_size = flash_init ()) > 0) {
664 #ifdef CFG_FLASH_CHECKSUM
665 print_size (flash_size, "");
666 /*
667 * Compute and print flash CRC if flashchecksum is set to 'y'
668 *
669 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
670 */
671 s = getenv ("flashchecksum");
672 if (s && (*s == 'y')) {
673 printf (" CRC: %08lX",
674 crc32 (0,
675 (const unsigned char *) CFG_FLASH_BASE,
676 flash_size)
677 );
678 }
679 putc ('\n');
680 #else
681 print_size (flash_size, "\n");
682 #endif /* CFG_FLASH_CHECKSUM */
683 } else {
684 puts (failed);
685 hang ();
686 }
687
688 bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */
689 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
690 #if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
691 bd->bi_flashoffset = 0;
692 #elif CFG_MONITOR_BASE == CFG_FLASH_BASE
693 bd->bi_flashoffset = CFG_MONITOR_LEN; /* reserved area for startup monitor */
694 #else
695 bd->bi_flashoffset = 0;
696 #endif
697 #else
698
699 bd->bi_flashsize = 0;
700 bd->bi_flashstart = 0;
701 bd->bi_flashoffset = 0;
702 #endif /* !CFG_NO_FLASH */
703
704 WATCHDOG_RESET ();
705
706 /* initialize higher level parts of CPU like time base and timers */
707 cpu_init_r ();
708
709 WATCHDOG_RESET ();
710
711 /* initialize malloc() area */
712 mem_malloc_init ();
713 malloc_bin_reloc ();
714
715 #ifdef CONFIG_SPI
716 # if !defined(CFG_ENV_IS_IN_EEPROM)
717 spi_init_f ();
718 # endif
719 spi_init_r ();
720 #endif
721
722 /* relocate environment function pointers etc. */
723 env_relocate ();
724
725 /*
726 * Fill in missing fields of bd_info.
727 * We do this here, where we have "normal" access to the
728 * environment; we used to do this still running from ROM,
729 * where had to use getenv_r(), which can be pretty slow when
730 * the environment is in EEPROM.
731 */
732 s = getenv ("ethaddr");
733 #if defined (CONFIG_MBX) || defined (CONFIG_RPXCLASSIC) || defined(CONFIG_IAD210)
734 if (s == NULL)
735 board_get_enetaddr (bd->bi_enetaddr);
736 else
737 #endif
738 for (i = 0; i < 6; ++i) {
739 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
740 if (s)
741 s = (*e) ? e + 1 : e;
742 }
743 #ifdef CONFIG_HERMES
744 if ((gd->board_type >> 16) == 2)
745 bd->bi_ethspeed = gd->board_type & 0xFFFF;
746 else
747 bd->bi_ethspeed = 0xFFFF;
748 #endif
749
750 #ifdef CONFIG_NX823
751 load_sernum_ethaddr ();
752 #endif
753
754 #if defined(CFG_GT_6426x) || defined(CONFIG_PN62)
755 /* handle the 2nd ethernet address */
756
757 s = getenv ("eth1addr");
758
759 for (i = 0; i < 6; ++i) {
760 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
761 if (s)
762 s = (*e) ? e + 1 : e;
763 }
764 #endif
765 #if defined(CFG_GT_6426x)
766 /* handle the 3rd ethernet address */
767
768 s = getenv ("eth2addr");
769
770 for (i = 0; i < 6; ++i) {
771 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
772 if (s)
773 s = (*e) ? e + 1 : e;
774 }
775 #endif
776
777
778 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
779 defined(CONFIG_CCM)
780 load_sernum_ethaddr ();
781 #endif
782 /* IP Address */
783 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
784
785 WATCHDOG_RESET ();
786
787 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx)
788 /*
789 * Do pci configuration
790 */
791 pci_init ();
792 #endif
793
794 /** leave this here (after malloc(), environment and PCI are working) **/
795 /* Initialize devices */
796 devices_init ();
797
798 /* allocate syscalls table (console_init_r will fill it in */
799 syscall_tbl = (void **) malloc (NR_SYSCALLS * sizeof (void *));
800
801 /* Initialize the console (after the relocation and devices init) */
802 console_init_r ();
803 /** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
804 syscalls_init ();
805
806 #if defined(CONFIG_CCM) || \
807 defined(CONFIG_COGENT) || \
808 defined(CONFIG_CPCI405) || \
809 defined(CONFIG_EVB64260) || \
810 defined(CONFIG_HYMOD) || \
811 defined(CONFIG_KUP4K) || \
812 defined(CONFIG_LWMON) || \
813 defined(CONFIG_PCU_E) || \
814 defined(CONFIG_W7O) || \
815 defined(CONFIG_MISC_INIT_R)
816 /* miscellaneous platform dependent initialisations */
817 misc_init_r ();
818 #endif
819
820 #ifdef CONFIG_HERMES
821 if (bd->bi_ethspeed != 0xFFFF)
822 hermes_start_lxt980 ((int) bd->bi_ethspeed);
823 #endif
824
825 #if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
826 defined(CONFIG_CCM) || \
827 defined(CONFIG_ELPT860) || \
828 defined(CONFIG_EP8260) || \
829 defined(CONFIG_IP860) || \
830 defined(CONFIG_IVML24) || \
831 defined(CONFIG_IVMS8) || \
832 defined(CONFIG_LWMON) || \
833 defined(CONFIG_MPC8260ADS) || \
834 defined(CONFIG_PCU_E) || \
835 defined(CONFIG_RPXSUPER) || \
836 defined(CONFIG_SPD823TS) )
837
838 WATCHDOG_RESET ();
839 # ifdef DEBUG
840 puts ("Reset Ethernet PHY\n");
841 # endif
842 reset_phy ();
843 #endif
844
845 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
846 WATCHDOG_RESET ();
847 puts ("KGDB: ");
848 kgdb_init ();
849 #endif
850
851 #ifdef DEBUG
852 printf ("U-Boot relocated to %08lx\n", dest_addr);
853 #endif
854
855 /*
856 * Enable Interrupts
857 */
858 interrupt_init ();
859
860 /* Must happen after interrupts are initialized since
861 * an irq handler gets installed
862 */
863 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
864 serial_buffered_init();
865 #endif
866
867 #ifdef CONFIG_STATUS_LED
868 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
869 #endif
870
871 udelay (20);
872
873 set_timer (0);
874
875 /* Insert function pointers now that we have relocated the code */
876
877 /* Initialize from environment */
878 if ((s = getenv ("loadaddr")) != NULL) {
879 load_addr = simple_strtoul (s, NULL, 16);
880 }
881 #if (CONFIG_COMMANDS & CFG_CMD_NET)
882 if ((s = getenv ("bootfile")) != NULL) {
883 copy_filename (BootFile, s, sizeof (BootFile));
884 }
885 #endif /* CFG_CMD_NET */
886
887 WATCHDOG_RESET ();
888
889 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
890 WATCHDOG_RESET ();
891 puts ("SCSI: ");
892 scsi_init ();
893 #endif
894
895 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
896 WATCHDOG_RESET ();
897 puts ("DOC: ");
898 doc_init ();
899 #endif
900
901 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
902 WATCHDOG_RESET ();
903 puts ("Net: ");
904 eth_initialize (bd);
905 #endif
906
907 #ifdef CONFIG_POST
908 post_run (NULL, POST_RAM | post_bootmode_get(0));
909 if (post_bootmode_get(0) & POST_POWERFAIL) {
910 post_bootmode_clear();
911 board_poweroff();
912 }
913 #endif
914
915 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
916 WATCHDOG_RESET ();
917 puts ("PCMCIA:");
918 pcmcia_init ();
919 #endif
920
921 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
922 WATCHDOG_RESET ();
923 # ifdef CONFIG_IDE_8xx_PCCARD
924 puts ("PCMCIA:");
925 # else
926 puts ("IDE: ");
927 #endif
928 ide_init ();
929 #endif /* CFG_CMD_IDE */
930
931 #ifdef CONFIG_LAST_STAGE_INIT
932 WATCHDOG_RESET ();
933 /*
934 * Some parts can be only initialized if all others (like
935 * Interrupts) are up and running (i.e. the PC-style ISA
936 * keyboard).
937 */
938 last_stage_init ();
939 #endif
940
941 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
942 WATCHDOG_RESET ();
943 bedbug_init ();
944 #endif
945
946 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
947 /*
948 * Export available size of memory for Linux,
949 * taking into account the protected RAM at top of memory
950 */
951 {
952 ulong pram;
953 uchar memsz[32];
954 #ifdef CONFIG_PRAM
955 char *s;
956
957 if ((s = getenv ("pram")) != NULL) {
958 pram = simple_strtoul (s, NULL, 10);
959 } else {
960 pram = CONFIG_PRAM;
961 }
962 #else
963 pram=0;
964 #endif
965 #ifdef CONFIG_LOGBUFFER
966 /* Also take the logbuffer into account (pram is in kB) */
967 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
968 #endif
969 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
970 setenv ("mem", memsz);
971 }
972 #endif
973
974 /* Initialization complete - start the monitor */
975
976 /* main_loop() can return to retry autoboot, if so just run it again. */
977 for (;;) {
978 WATCHDOG_RESET ();
979 main_loop ();
980 }
981
982 /* NOTREACHED - no way out of command loop except booting */
983 }
984
985 void hang (void)
986 {
987 puts ("### ERROR ### Please RESET the board ###\n");
988 for (;;);
989 }
990
991 #if 0 /* We could use plain global data, but the resulting code is bigger */
992 /*
993 * Pointer to initial global data area
994 *
995 * Here we initialize it.
996 */
997 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
998 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
999 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1000 #endif /* 0 */
1001
1002 /************************************************************************/
"Das U-Boot" Source Tree