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* Patch by Jon Loeliger, 2005-07-25
[people/ms/u-boot.git] / lib_ppc / board.c
1 /*
2 * (C) Copyright 2000-2004
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 #ifdef CONFIG_8xx
30 #include <mpc8xx.h>
31 #endif
32 #ifdef CONFIG_5xx
33 #include <mpc5xx.h>
34 #endif
35 #ifdef CONFIG_MPC5xxx
36 #include <mpc5xxx.h>
37 #endif
38 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
39 #include <ide.h>
40 #endif
41 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
42 #include <scsi.h>
43 #endif
44 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
45 #include <kgdb.h>
46 #endif
47 #ifdef CONFIG_STATUS_LED
48 #include <status_led.h>
49 #endif
50 #include <net.h>
51 #include <serial.h>
52 #ifdef CFG_ALLOC_DPRAM
53 #if !defined(CONFIG_CPM2)
54 #include <commproc.h>
55 #endif
56 #endif
57 #include <version.h>
58 #if defined(CONFIG_BAB7xx)
59 #include <w83c553f.h>
60 #endif
61 #include <dtt.h>
62 #if defined(CONFIG_POST)
63 #include <post.h>
64 #endif
65 #if defined(CONFIG_LOGBUFFER)
66 #include <logbuff.h>
67 #endif
68 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
69 #include <asm/cache.h>
70 #endif
71 #ifdef CONFIG_PS2KBD
72 #include <keyboard.h>
73 #endif
74
75 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
76 void doc_init (void);
77 #endif
78 #if defined(CONFIG_HARD_I2C) || \
79 defined(CONFIG_SOFT_I2C)
80 #include <i2c.h>
81 #endif
82 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
83 void nand_init (void);
84 #endif
85
86 static char *failed = "*** failed ***\n";
87
88 #if defined(CONFIG_OXC) || defined(CONFIG_PCU_E) || defined(CONFIG_RMU)
89 extern flash_info_t flash_info[];
90 #endif
91
92 #include <environment.h>
93
94 #if defined(CFG_ENV_IS_EMBEDDED)
95 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
96 #elif ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
97 (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
98 defined(CFG_ENV_IS_IN_NVRAM)
99 #define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
100 #else
101 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
102 #endif
103
104 extern ulong __init_end;
105 extern ulong _end;
106 ulong monitor_flash_len;
107
108 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
109 #include <bedbug/type.h>
110 #endif
111
112 /*
113 * Begin and End of memory area for malloc(), and current "brk"
114 */
115 static ulong mem_malloc_start = 0;
116 static ulong mem_malloc_end = 0;
117 static ulong mem_malloc_brk = 0;
118
119 /************************************************************************
120 * Utilities *
121 ************************************************************************
122 */
123
124 /*
125 * The Malloc area is immediately below the monitor copy in DRAM
126 */
127 static void mem_malloc_init (void)
128 {
129 DECLARE_GLOBAL_DATA_PTR;
130
131 ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
132
133 mem_malloc_end = dest_addr;
134 mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
135 mem_malloc_brk = mem_malloc_start;
136
137 memset ((void *) mem_malloc_start,
138 0,
139 mem_malloc_end - mem_malloc_start);
140 }
141
142 void *sbrk (ptrdiff_t increment)
143 {
144 ulong old = mem_malloc_brk;
145 ulong new = old + increment;
146
147 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
148 return (NULL);
149 }
150 mem_malloc_brk = new;
151 return ((void *) old);
152 }
153
154 char *strmhz (char *buf, long hz)
155 {
156 long l, n;
157 long m;
158
159 n = hz / 1000000L;
160 l = sprintf (buf, "%ld", n);
161 m = (hz % 1000000L) / 1000L;
162 if (m != 0)
163 sprintf (buf + l, ".%03ld", m);
164 return (buf);
165 }
166
167 /*
168 * All attempts to come up with a "common" initialization sequence
169 * that works for all boards and architectures failed: some of the
170 * requirements are just _too_ different. To get rid of the resulting
171 * mess of board dependend #ifdef'ed code we now make the whole
172 * initialization sequence configurable to the user.
173 *
174 * The requirements for any new initalization function is simple: it
175 * receives a pointer to the "global data" structure as it's only
176 * argument, and returns an integer return code, where 0 means
177 * "continue" and != 0 means "fatal error, hang the system".
178 */
179 typedef int (init_fnc_t) (void);
180
181 /************************************************************************
182 * Init Utilities *
183 ************************************************************************
184 * Some of this code should be moved into the core functions,
185 * but let's get it working (again) first...
186 */
187
188 static int init_baudrate (void)
189 {
190 DECLARE_GLOBAL_DATA_PTR;
191
192 uchar tmp[64]; /* long enough for environment variables */
193 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
194
195 gd->baudrate = (i > 0)
196 ? (int) simple_strtoul (tmp, NULL, 10)
197 : CONFIG_BAUDRATE;
198 return (0);
199 }
200
201 /***********************************************************************/
202
203 static int init_func_ram (void)
204 {
205 DECLARE_GLOBAL_DATA_PTR;
206
207 #ifdef CONFIG_BOARD_TYPES
208 int board_type = gd->board_type;
209 #else
210 int board_type = 0; /* use dummy arg */
211 #endif
212 puts ("DRAM: ");
213
214 if ((gd->ram_size = initdram (board_type)) > 0) {
215 print_size (gd->ram_size, "\n");
216 return (0);
217 }
218 puts (failed);
219 return (1);
220 }
221
222 /***********************************************************************/
223
224 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
225 static int init_func_i2c (void)
226 {
227 puts ("I2C: ");
228 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
229 puts ("ready\n");
230 return (0);
231 }
232 #endif
233
234 /***********************************************************************/
235
236 #if defined(CONFIG_WATCHDOG)
237 static int init_func_watchdog_init (void)
238 {
239 puts (" Watchdog enabled\n");
240 WATCHDOG_RESET ();
241 return (0);
242 }
243 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
244
245 static int init_func_watchdog_reset (void)
246 {
247 WATCHDOG_RESET ();
248 return (0);
249 }
250 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
251 #else
252 # define INIT_FUNC_WATCHDOG_INIT /* undef */
253 # define INIT_FUNC_WATCHDOG_RESET /* undef */
254 #endif /* CONFIG_WATCHDOG */
255
256 /************************************************************************
257 * Initialization sequence *
258 ************************************************************************
259 */
260
261 init_fnc_t *init_sequence[] = {
262
263 #if defined(CONFIG_BOARD_EARLY_INIT_F)
264 board_early_init_f,
265 #endif
266
267 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
268 get_clocks, /* get CPU and bus clocks (etc.) */
269 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M)
270 adjust_sdram_tbs_8xx,
271 #endif
272 init_timebase,
273 #endif
274 #ifdef CFG_ALLOC_DPRAM
275 #if !defined(CONFIG_CPM2)
276 dpram_init,
277 #endif
278 #endif
279 #if defined(CONFIG_BOARD_POSTCLK_INIT)
280 board_postclk_init,
281 #endif
282 env_init,
283 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
284 get_clocks_866, /* get CPU and bus clocks according to the environment variable */
285 sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
286 init_timebase,
287 #endif
288 init_baudrate,
289 serial_init,
290 console_init_f,
291 display_options,
292 #if defined(CONFIG_8260)
293 prt_8260_rsr,
294 prt_8260_clks,
295 #endif /* CONFIG_8260 */
296 checkcpu,
297 #if defined(CONFIG_MPC5xxx)
298 prt_mpc5xxx_clks,
299 #endif /* CONFIG_MPC5xxx */
300 #if defined(CONFIG_MPC8220)
301 prt_mpc8220_clks,
302 #endif
303 checkboard,
304 INIT_FUNC_WATCHDOG_INIT
305 #if defined(CONFIG_MISC_INIT_F)
306 misc_init_f,
307 #endif
308 INIT_FUNC_WATCHDOG_RESET
309 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
310 init_func_i2c,
311 #endif
312 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
313 dtt_init,
314 #endif
315 #ifdef CONFIG_POST
316 post_init_f,
317 #endif
318 INIT_FUNC_WATCHDOG_RESET
319 init_func_ram,
320 #if defined(CFG_DRAM_TEST)
321 testdram,
322 #endif /* CFG_DRAM_TEST */
323 INIT_FUNC_WATCHDOG_RESET
324
325 NULL, /* Terminate this list */
326 };
327
328 /************************************************************************
329 *
330 * This is the first part of the initialization sequence that is
331 * implemented in C, but still running from ROM.
332 *
333 * The main purpose is to provide a (serial) console interface as
334 * soon as possible (so we can see any error messages), and to
335 * initialize the RAM so that we can relocate the monitor code to
336 * RAM.
337 *
338 * Be aware of the restrictions: global data is read-only, BSS is not
339 * initialized, and stack space is limited to a few kB.
340 *
341 ************************************************************************
342 */
343
344 void board_init_f (ulong bootflag)
345 {
346 DECLARE_GLOBAL_DATA_PTR;
347
348 bd_t *bd;
349 ulong len, addr, addr_sp;
350 gd_t *id;
351 init_fnc_t **init_fnc_ptr;
352 #ifdef CONFIG_PRAM
353 int i;
354 ulong reg;
355 uchar tmp[64]; /* long enough for environment variables */
356 #endif
357
358 /* Pointer is writable since we allocated a register for it */
359 gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
360 /* compiler optimization barrier needed for GCC >= 3.4 */
361 __asm__ __volatile__("": : :"memory");
362
363 #if !defined(CONFIG_CPM2)
364 /* Clear initial global data */
365 memset ((void *) gd, 0, sizeof (gd_t));
366 #endif
367
368 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
369 if ((*init_fnc_ptr) () != 0) {
370 hang ();
371 }
372 }
373
374 /*
375 * Now that we have DRAM mapped and working, we can
376 * relocate the code and continue running from DRAM.
377 *
378 * Reserve memory at end of RAM for (top down in that order):
379 * - kernel log buffer
380 * - protected RAM
381 * - LCD framebuffer
382 * - monitor code
383 * - board info struct
384 */
385 len = (ulong)&_end - CFG_MONITOR_BASE;
386
387 #ifndef CONFIG_VERY_BIG_RAM
388 addr = CFG_SDRAM_BASE + gd->ram_size;
389 #else
390 /* only allow stack below 256M */
391 addr = CFG_SDRAM_BASE +
392 (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
393 #endif
394
395 #ifdef CONFIG_LOGBUFFER
396 /* reserve kernel log buffer */
397 addr -= (LOGBUFF_RESERVE);
398 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
399 #endif
400
401 #ifdef CONFIG_PRAM
402 /*
403 * reserve protected RAM
404 */
405 i = getenv_r ("pram", tmp, sizeof (tmp));
406 reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
407 addr -= (reg << 10); /* size is in kB */
408 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
409 #endif /* CONFIG_PRAM */
410
411 /* round down to next 4 kB limit */
412 addr &= ~(4096 - 1);
413 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
414
415 #ifdef CONFIG_LCD
416 /* reserve memory for LCD display (always full pages) */
417 addr = lcd_setmem (addr);
418 gd->fb_base = addr;
419 #endif /* CONFIG_LCD */
420
421 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
422 /* reserve memory for video display (always full pages) */
423 addr = video_setmem (addr);
424 gd->fb_base = addr;
425 #endif /* CONFIG_VIDEO */
426
427 /*
428 * reserve memory for U-Boot code, data & bss
429 * round down to next 4 kB limit
430 */
431 addr -= len;
432 addr &= ~(4096 - 1);
433
434 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
435
436 #ifdef CONFIG_AMIGAONEG3SE
437 gd->relocaddr = addr;
438 #endif
439
440 /*
441 * reserve memory for malloc() arena
442 */
443 addr_sp = addr - TOTAL_MALLOC_LEN;
444 debug ("Reserving %dk for malloc() at: %08lx\n",
445 TOTAL_MALLOC_LEN >> 10, addr_sp);
446
447 /*
448 * (permanently) allocate a Board Info struct
449 * and a permanent copy of the "global" data
450 */
451 addr_sp -= sizeof (bd_t);
452 bd = (bd_t *) addr_sp;
453 gd->bd = bd;
454 debug ("Reserving %d Bytes for Board Info at: %08lx\n",
455 sizeof (bd_t), addr_sp);
456 addr_sp -= sizeof (gd_t);
457 id = (gd_t *) addr_sp;
458 debug ("Reserving %d Bytes for Global Data at: %08lx\n",
459 sizeof (gd_t), addr_sp);
460
461 /*
462 * Finally, we set up a new (bigger) stack.
463 *
464 * Leave some safety gap for SP, force alignment on 16 byte boundary
465 * Clear initial stack frame
466 */
467 addr_sp -= 16;
468 addr_sp &= ~0xF;
469 *((ulong *) addr_sp)-- = 0;
470 *((ulong *) addr_sp)-- = 0;
471 debug ("Stack Pointer at: %08lx\n", addr_sp);
472
473 /*
474 * Save local variables to board info struct
475 */
476
477 bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
478 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
479
480 #ifdef CONFIG_IP860
481 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
482 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
483 #elif defined CONFIG_MPC8220
484 bd->bi_sramstart = CFG_SRAM_BASE; /* start of SRAM memory */
485 bd->bi_sramsize = CFG_SRAM_SIZE; /* size of SRAM memory */
486 #else
487 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
488 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
489 #endif
490
491 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
492 defined(CONFIG_E500)
493 bd->bi_immr_base = CFG_IMMR; /* base of IMMR register */
494 #endif
495 #if defined(CONFIG_MPC5xxx)
496 bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
497 #endif
498 #if defined(CONFIG_MPC8220)
499 bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
500 bd->bi_inpfreq = gd->inp_clk;
501 bd->bi_pcifreq = gd->pci_clk;
502 bd->bi_vcofreq = gd->vco_clk;
503 bd->bi_pevfreq = gd->pev_clk;
504 bd->bi_flbfreq = gd->flb_clk;
505
506 /* store bootparam to sram (backward compatible), here? */
507 {
508 u32 *sram = (u32 *)CFG_SRAM_BASE;
509 *sram++ = gd->ram_size;
510 *sram++ = gd->bus_clk;
511 *sram++ = gd->inp_clk;
512 *sram++ = gd->cpu_clk;
513 *sram++ = gd->vco_clk;
514 *sram++ = gd->flb_clk;
515 *sram++ = 0xb8c3ba11; /* boot signature */
516 }
517 #endif
518
519 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
520
521 WATCHDOG_RESET ();
522 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
523 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
524 #if defined(CONFIG_CPM2)
525 bd->bi_cpmfreq = gd->cpm_clk;
526 bd->bi_brgfreq = gd->brg_clk;
527 bd->bi_sccfreq = gd->scc_clk;
528 bd->bi_vco = gd->vco_out;
529 #endif /* CONFIG_CPM2 */
530 #if defined(CONFIG_MPC5xxx)
531 bd->bi_ipbfreq = gd->ipb_clk;
532 bd->bi_pcifreq = gd->pci_clk;
533 #endif /* CONFIG_MPC5xxx */
534 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
535
536 #ifdef CFG_EXTBDINFO
537 strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
538 strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
539
540 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
541 bd->bi_plb_busfreq = gd->bus_clk;
542 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
543 bd->bi_pci_busfreq = get_PCI_freq ();
544 bd->bi_opbfreq = get_OPB_freq ();
545 #elif defined(CONFIG_XILINX_ML300)
546 bd->bi_pci_busfreq = get_PCI_freq ();
547 #endif
548 #endif
549
550 debug ("New Stack Pointer is: %08lx\n", addr_sp);
551
552 WATCHDOG_RESET ();
553
554 #ifdef CONFIG_POST
555 post_bootmode_init();
556 post_run (NULL, POST_ROM | post_bootmode_get(0));
557 #endif
558
559 WATCHDOG_RESET();
560
561 memcpy (id, (void *)gd, sizeof (gd_t));
562
563 relocate_code (addr_sp, id, addr);
564
565 /* NOTREACHED - relocate_code() does not return */
566 }
567
568
569 /************************************************************************
570 *
571 * This is the next part if the initialization sequence: we are now
572 * running from RAM and have a "normal" C environment, i. e. global
573 * data can be written, BSS has been cleared, the stack size in not
574 * that critical any more, etc.
575 *
576 ************************************************************************
577 */
578
579 void board_init_r (gd_t *id, ulong dest_addr)
580 {
581 DECLARE_GLOBAL_DATA_PTR;
582 cmd_tbl_t *cmdtp;
583 char *s, *e;
584 bd_t *bd;
585 int i;
586 extern void malloc_bin_reloc (void);
587 #ifndef CFG_ENV_IS_NOWHERE
588 extern char * env_name_spec;
589 #endif
590
591 #ifndef CFG_NO_FLASH
592 ulong flash_size;
593 #endif
594
595 gd = id; /* initialize RAM version of global data */
596 bd = gd->bd;
597
598 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
599
600 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
601
602 WATCHDOG_RESET ();
603
604 #if defined(CONFIG_BOARD_EARLY_INIT_R)
605 board_early_init_r ();
606 #endif
607
608 gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
609
610 monitor_flash_len = (ulong)&__init_end - dest_addr;
611
612 #ifdef CONFIG_SERIAL_MULTI
613 serial_initialize();
614 #endif
615
616 /*
617 * We have to relocate the command table manually
618 */
619 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
620 ulong addr;
621 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
622 #if 0
623 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
624 cmdtp->name, (ulong) (cmdtp->cmd), addr);
625 #endif
626 cmdtp->cmd =
627 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
628
629 addr = (ulong)(cmdtp->name) + gd->reloc_off;
630 cmdtp->name = (char *)addr;
631
632 if (cmdtp->usage) {
633 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
634 cmdtp->usage = (char *)addr;
635 }
636 #ifdef CFG_LONGHELP
637 if (cmdtp->help) {
638 addr = (ulong)(cmdtp->help) + gd->reloc_off;
639 cmdtp->help = (char *)addr;
640 }
641 #endif
642 }
643 /* there are some other pointer constants we must deal with */
644 #ifndef CFG_ENV_IS_NOWHERE
645 env_name_spec += gd->reloc_off;
646 #endif
647
648 WATCHDOG_RESET ();
649
650 #ifdef CONFIG_LOGBUFFER
651 logbuff_init_ptrs ();
652 #endif
653 #ifdef CONFIG_POST
654 post_output_backlog ();
655 post_reloc ();
656 #endif
657
658 WATCHDOG_RESET();
659
660 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM)
661 icache_enable (); /* it's time to enable the instruction cache */
662 #endif
663
664 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
665 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
666 #endif
667
668 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
669 /*
670 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
671 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
672 * bridge there.
673 */
674 pci_init ();
675 #endif
676 #if defined(CONFIG_BAB7xx)
677 /*
678 * Initialise the ISA bridge
679 */
680 initialise_w83c553f ();
681 #endif
682
683 asm ("sync ; isync");
684
685 /*
686 * Setup trap handlers
687 */
688 trap_init (dest_addr);
689
690 #if !defined(CFG_NO_FLASH)
691 puts ("FLASH: ");
692
693 if ((flash_size = flash_init ()) > 0) {
694 # ifdef CFG_FLASH_CHECKSUM
695 print_size (flash_size, "");
696 /*
697 * Compute and print flash CRC if flashchecksum is set to 'y'
698 *
699 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
700 */
701 s = getenv ("flashchecksum");
702 if (s && (*s == 'y')) {
703 printf (" CRC: %08lX",
704 crc32 (0, (const unsigned char *) CFG_FLASH_BASE, flash_size)
705 );
706 }
707 putc ('\n');
708 # else /* !CFG_FLASH_CHECKSUM */
709 print_size (flash_size, "\n");
710 # endif /* CFG_FLASH_CHECKSUM */
711 } else {
712 puts (failed);
713 hang ();
714 }
715
716 bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */
717 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
718 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
719 /* flash mapped at end of memory map */
720 bd->bi_flashoffset = TEXT_BASE + flash_size;
721 # elif CFG_MONITOR_BASE == CFG_FLASH_BASE
722 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
723 # else
724 bd->bi_flashoffset = 0;
725 # endif
726 #else /* CFG_NO_FLASH */
727
728 bd->bi_flashsize = 0;
729 bd->bi_flashstart = 0;
730 bd->bi_flashoffset = 0;
731 #endif /* !CFG_NO_FLASH */
732
733 WATCHDOG_RESET ();
734
735 /* initialize higher level parts of CPU like time base and timers */
736 cpu_init_r ();
737
738 WATCHDOG_RESET ();
739
740 /* initialize malloc() area */
741 mem_malloc_init ();
742 malloc_bin_reloc ();
743
744 #ifdef CONFIG_SPI
745 # if !defined(CFG_ENV_IS_IN_EEPROM)
746 spi_init_f ();
747 # endif
748 spi_init_r ();
749 #endif
750
751 /* relocate environment function pointers etc. */
752 env_relocate ();
753
754 /*
755 * Fill in missing fields of bd_info.
756 * We do this here, where we have "normal" access to the
757 * environment; we used to do this still running from ROM,
758 * where had to use getenv_r(), which can be pretty slow when
759 * the environment is in EEPROM.
760 */
761
762 #if defined(CFG_EXTBDINFO)
763 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
764 #if defined(CONFIG_I2CFAST)
765 /*
766 * set bi_iic_fast for linux taking environment variable
767 * "i2cfast" into account
768 */
769 {
770 char *s = getenv ("i2cfast");
771 if (s && ((*s == 'y') || (*s == 'Y'))) {
772 bd->bi_iic_fast[0] = 1;
773 bd->bi_iic_fast[1] = 1;
774 } else {
775 bd->bi_iic_fast[0] = 0;
776 bd->bi_iic_fast[1] = 0;
777 }
778 }
779 #else
780 bd->bi_iic_fast[0] = 0;
781 bd->bi_iic_fast[1] = 0;
782 #endif /* CONFIG_I2CFAST */
783 #endif /* CONFIG_405GP, CONFIG_405EP */
784 #endif /* CFG_EXTBDINFO */
785
786 s = getenv ("ethaddr");
787 #if defined (CONFIG_MBX) || defined (CONFIG_RPXCLASSIC) || defined(CONFIG_IAD210)
788 if (s == NULL)
789 board_get_enetaddr (bd->bi_enetaddr);
790 else
791 #endif
792 for (i = 0; i < 6; ++i) {
793 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
794 if (s)
795 s = (*e) ? e + 1 : e;
796 }
797 #ifdef CONFIG_HERMES
798 if ((gd->board_type >> 16) == 2)
799 bd->bi_ethspeed = gd->board_type & 0xFFFF;
800 else
801 bd->bi_ethspeed = 0xFFFF;
802 #endif
803
804 #ifdef CONFIG_NX823
805 load_sernum_ethaddr ();
806 #endif
807
808 #ifdef CONFIG_HAS_ETH1
809 /* handle the 2nd ethernet address */
810
811 s = getenv ("eth1addr");
812
813 for (i = 0; i < 6; ++i) {
814 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
815 if (s)
816 s = (*e) ? e + 1 : e;
817 }
818 #endif
819 #ifdef CONFIG_HAS_ETH2
820 /* handle the 3rd ethernet address */
821
822 s = getenv ("eth2addr");
823 #if defined(CONFIG_XPEDITE1K)
824 if (s == NULL)
825 board_get_enetaddr(bd->bi_enet2addr);
826 else
827 #endif
828 for (i = 0; i < 6; ++i) {
829 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
830 if (s)
831 s = (*e) ? e + 1 : e;
832 }
833 #endif
834
835 #ifdef CONFIG_HAS_ETH3
836 /* handle 4th ethernet address */
837 s = getenv("eth3addr");
838 #if defined(CONFIG_XPEDITE1K)
839 if (s == NULL)
840 board_get_enetaddr(bd->bi_enet3addr);
841 else
842 #endif
843 for (i = 0; i < 6; ++i) {
844 bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
845 if (s)
846 s = (*e) ? e + 1 : e;
847 }
848 #endif
849
850 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
851 defined(CONFIG_CCM) || defined(CONFIG_KUP4K) || defined(CONFIG_KUP4X)
852 load_sernum_ethaddr ();
853 #endif
854 /* IP Address */
855 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
856
857 WATCHDOG_RESET ();
858
859 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45)
860 /*
861 * Do pci configuration
862 */
863 pci_init ();
864 #endif
865
866 /** leave this here (after malloc(), environment and PCI are working) **/
867 /* Initialize devices */
868 devices_init ();
869
870 /* Initialize the jump table for applications */
871 jumptable_init ();
872
873 /* Initialize the console (after the relocation and devices init) */
874 console_init_r ();
875
876 #if defined(CONFIG_CCM) || \
877 defined(CONFIG_COGENT) || \
878 defined(CONFIG_CPCI405) || \
879 defined(CONFIG_EVB64260) || \
880 defined(CONFIG_KUP4K) || \
881 defined(CONFIG_KUP4X) || \
882 defined(CONFIG_LWMON) || \
883 defined(CONFIG_PCU_E) || \
884 defined(CONFIG_W7O) || \
885 defined(CONFIG_MISC_INIT_R)
886 /* miscellaneous platform dependent initialisations */
887 misc_init_r ();
888 #endif
889
890 #ifdef CONFIG_HERMES
891 if (bd->bi_ethspeed != 0xFFFF)
892 hermes_start_lxt980 ((int) bd->bi_ethspeed);
893 #endif
894
895 #if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
896 defined(CONFIG_CCM) || \
897 defined(CONFIG_ELPT860) || \
898 defined(CONFIG_EP8260) || \
899 defined(CONFIG_IP860) || \
900 defined(CONFIG_IVML24) || \
901 defined(CONFIG_IVMS8) || \
902 defined(CONFIG_MPC8260ADS) || \
903 defined(CONFIG_MPC8266ADS) || \
904 defined(CONFIG_MPC8560ADS) || \
905 defined(CONFIG_PCU_E) || \
906 defined(CONFIG_RPXSUPER) || \
907 defined(CONFIG_STXGP3) || \
908 defined(CONFIG_SPD823TS) || \
909 defined(CONFIG_RESET_PHY_R) )
910
911 WATCHDOG_RESET ();
912 debug ("Reset Ethernet PHY\n");
913 reset_phy ();
914 #endif
915
916 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
917 WATCHDOG_RESET ();
918 puts ("KGDB: ");
919 kgdb_init ();
920 #endif
921
922 debug ("U-Boot relocated to %08lx\n", dest_addr);
923
924 /*
925 * Enable Interrupts
926 */
927 interrupt_init ();
928
929 /* Must happen after interrupts are initialized since
930 * an irq handler gets installed
931 */
932 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
933 serial_buffered_init();
934 #endif
935
936 #ifdef CONFIG_STATUS_LED
937 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
938 #endif
939
940 udelay (20);
941
942 set_timer (0);
943
944 /* Initialize from environment */
945 if ((s = getenv ("loadaddr")) != NULL) {
946 load_addr = simple_strtoul (s, NULL, 16);
947 }
948 #if (CONFIG_COMMANDS & CFG_CMD_NET)
949 if ((s = getenv ("bootfile")) != NULL) {
950 copy_filename (BootFile, s, sizeof (BootFile));
951 }
952 #endif /* CFG_CMD_NET */
953
954 WATCHDOG_RESET ();
955
956 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
957 WATCHDOG_RESET ();
958 puts ("SCSI: ");
959 scsi_init ();
960 #endif
961
962 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
963 WATCHDOG_RESET ();
964 puts ("DOC: ");
965 doc_init ();
966 #endif
967
968 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
969 WATCHDOG_RESET ();
970 puts ("NAND: ");
971 nand_init(); /* go init the NAND */
972 #endif
973
974 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
975 WATCHDOG_RESET ();
976 puts ("Net: ");
977 eth_initialize (bd);
978 #endif
979
980 #ifdef CONFIG_POST
981 post_run (NULL, POST_RAM | post_bootmode_get(0));
982 #endif
983
984 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
985 WATCHDOG_RESET ();
986 puts ("PCMCIA:");
987 pcmcia_init ();
988 #endif
989
990 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
991 WATCHDOG_RESET ();
992 # ifdef CONFIG_IDE_8xx_PCCARD
993 puts ("PCMCIA:");
994 # else
995 puts ("IDE: ");
996 #endif
997 ide_init ();
998 #endif /* CFG_CMD_IDE */
999
1000 #ifdef CONFIG_LAST_STAGE_INIT
1001 WATCHDOG_RESET ();
1002 /*
1003 * Some parts can be only initialized if all others (like
1004 * Interrupts) are up and running (i.e. the PC-style ISA
1005 * keyboard).
1006 */
1007 last_stage_init ();
1008 #endif
1009
1010 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
1011 WATCHDOG_RESET ();
1012 bedbug_init ();
1013 #endif
1014
1015 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
1016 /*
1017 * Export available size of memory for Linux,
1018 * taking into account the protected RAM at top of memory
1019 */
1020 {
1021 ulong pram;
1022 uchar memsz[32];
1023 #ifdef CONFIG_PRAM
1024 char *s;
1025
1026 if ((s = getenv ("pram")) != NULL) {
1027 pram = simple_strtoul (s, NULL, 10);
1028 } else {
1029 pram = CONFIG_PRAM;
1030 }
1031 #else
1032 pram=0;
1033 #endif
1034 #ifdef CONFIG_LOGBUFFER
1035 /* Also take the logbuffer into account (pram is in kB) */
1036 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1037 #endif
1038 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1039 setenv ("mem", memsz);
1040 }
1041 #endif
1042
1043 #ifdef CONFIG_PS2KBD
1044 puts ("PS/2: ");
1045 kbd_init();
1046 #endif
1047
1048 #ifdef CONFIG_MODEM_SUPPORT
1049 {
1050 extern int do_mdm_init;
1051 do_mdm_init = gd->do_mdm_init;
1052 }
1053 #endif
1054
1055 /* Initialization complete - start the monitor */
1056
1057 /* main_loop() can return to retry autoboot, if so just run it again. */
1058 for (;;) {
1059 WATCHDOG_RESET ();
1060 main_loop ();
1061 }
1062
1063 /* NOTREACHED - no way out of command loop except booting */
1064 }
1065
1066 void hang (void)
1067 {
1068 puts ("### ERROR ### Please RESET the board ###\n");
1069 #ifdef CONFIG_SHOW_BOOT_PROGRESS
1070 show_boot_progress(-30);
1071 #endif
1072 for (;;);
1073 }
1074
1075 #ifdef CONFIG_MODEM_SUPPORT
1076 /* called from main loop (common/main.c) */
1077 extern void dbg(const char *fmt, ...);
1078 int mdm_init (void)
1079 {
1080 char env_str[16];
1081 char *init_str;
1082 int i;
1083 extern char console_buffer[];
1084 static inline void mdm_readline(char *buf, int bufsiz);
1085 extern void enable_putc(void);
1086 extern int hwflow_onoff(int);
1087
1088 enable_putc(); /* enable serial_putc() */
1089
1090 #ifdef CONFIG_HWFLOW
1091 init_str = getenv("mdm_flow_control");
1092 if (init_str && (strcmp(init_str, "rts/cts") == 0))
1093 hwflow_onoff (1);
1094 else
1095 hwflow_onoff(-1);
1096 #endif
1097
1098 for (i = 1;;i++) {
1099 sprintf(env_str, "mdm_init%d", i);
1100 if ((init_str = getenv(env_str)) != NULL) {
1101 serial_puts(init_str);
1102 serial_puts("\n");
1103 for(;;) {
1104 mdm_readline(console_buffer, CFG_CBSIZE);
1105 dbg("ini%d: [%s]", i, console_buffer);
1106
1107 if ((strcmp(console_buffer, "OK") == 0) ||
1108 (strcmp(console_buffer, "ERROR") == 0)) {
1109 dbg("ini%d: cmd done", i);
1110 break;
1111 } else /* in case we are originating call ... */
1112 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1113 dbg("ini%d: connect", i);
1114 return 0;
1115 }
1116 }
1117 } else
1118 break; /* no init string - stop modem init */
1119
1120 udelay(100000);
1121 }
1122
1123 udelay(100000);
1124
1125 /* final stage - wait for connect */
1126 for(;i > 1;) { /* if 'i' > 1 - wait for connection
1127 message from modem */
1128 mdm_readline(console_buffer, CFG_CBSIZE);
1129 dbg("ini_f: [%s]", console_buffer);
1130 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1131 dbg("ini_f: connected");
1132 return 0;
1133 }
1134 }
1135
1136 return 0;
1137 }
1138
1139 /* 'inline' - We have to do it fast */
1140 static inline void mdm_readline(char *buf, int bufsiz)
1141 {
1142 char c;
1143 char *p;
1144 int n;
1145
1146 n = 0;
1147 p = buf;
1148 for(;;) {
1149 c = serial_getc();
1150
1151 /* dbg("(%c)", c); */
1152
1153 switch(c) {
1154 case '\r':
1155 break;
1156 case '\n':
1157 *p = '\0';
1158 return;
1159
1160 default:
1161 if(n++ > bufsiz) {
1162 *p = '\0';
1163 return; /* sanity check */
1164 }
1165 *p = c;
1166 p++;
1167 break;
1168 }
1169 }
1170 }
1171 #endif
1172
1173 #if 0 /* We could use plain global data, but the resulting code is bigger */
1174 /*
1175 * Pointer to initial global data area
1176 *
1177 * Here we initialize it.
1178 */
1179 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1180 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1181 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1182 #endif /* 0 */
1183
1184 /************************************************************************/
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