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[people/ms/u-boot.git] / lib_ppc / board.c
1 /*
2 * (C) Copyright 2000-2006
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 defined(CONFIG_CMD_IDE)
39 #include <ide.h>
40 #endif
41 #if defined(CONFIG_CMD_SCSI)
42 #include <scsi.h>
43 #endif
44 #if defined(CONFIG_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 #ifdef CFG_UPDATE_FLASH_SIZE
76 extern int update_flash_size (int flash_size);
77 #endif
78
79 #if defined(CONFIG_SC3)
80 extern void sc3_read_eeprom(void);
81 #endif
82
83 #if defined(CONFIG_CMD_DOC)
84 void doc_init (void);
85 #endif
86 #if defined(CONFIG_HARD_I2C) || \
87 defined(CONFIG_SOFT_I2C)
88 #include <i2c.h>
89 #endif
90 #if defined(CONFIG_CMD_NAND)
91 void nand_init (void);
92 #endif
93
94 static char *failed = "*** failed ***\n";
95
96 #if defined(CONFIG_OXC) || defined(CONFIG_PCU_E) || defined(CONFIG_RMU)
97 extern flash_info_t flash_info[];
98 #endif
99
100 #if defined(CONFIG_START_IDE)
101 extern int board_start_ide(void);
102 #endif
103 #include <environment.h>
104
105 DECLARE_GLOBAL_DATA_PTR;
106
107 #if defined(CFG_ENV_IS_EMBEDDED)
108 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
109 #elif ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
110 (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
111 defined(CFG_ENV_IS_IN_NVRAM)
112 #define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
113 #else
114 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
115 #endif
116
117 extern ulong __init_end;
118 extern ulong _end;
119 ulong monitor_flash_len;
120
121 #if defined(CONFIG_CMD_BEDBUG)
122 #include <bedbug/type.h>
123 #endif
124
125 /*
126 * Begin and End of memory area for malloc(), and current "brk"
127 */
128 static ulong mem_malloc_start = 0;
129 static ulong mem_malloc_end = 0;
130 static ulong mem_malloc_brk = 0;
131
132 /************************************************************************
133 * Utilities *
134 ************************************************************************
135 */
136
137 /*
138 * The Malloc area is immediately below the monitor copy in DRAM
139 */
140 static void mem_malloc_init (void)
141 {
142 #if !defined(CONFIG_RELOC_FIXUP_WORKS)
143 mem_malloc_end = CFG_MONITOR_BASE + gd->reloc_off;
144 #endif
145 mem_malloc_start = mem_malloc_end - TOTAL_MALLOC_LEN;
146 mem_malloc_brk = mem_malloc_start;
147
148 memset ((void *) mem_malloc_start,
149 0,
150 mem_malloc_end - mem_malloc_start);
151 }
152
153 void *sbrk (ptrdiff_t increment)
154 {
155 ulong old = mem_malloc_brk;
156 ulong new = old + increment;
157
158 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
159 return (NULL);
160 }
161 mem_malloc_brk = new;
162 return ((void *) old);
163 }
164
165 char *strmhz (char *buf, long hz)
166 {
167 long l, n;
168 long m;
169
170 n = hz / 1000000L;
171 l = sprintf (buf, "%ld", n);
172 m = (hz % 1000000L) / 1000L;
173 if (m != 0)
174 sprintf (buf + l, ".%03ld", m);
175 return (buf);
176 }
177
178 /*
179 * All attempts to come up with a "common" initialization sequence
180 * that works for all boards and architectures failed: some of the
181 * requirements are just _too_ different. To get rid of the resulting
182 * mess of board dependend #ifdef'ed code we now make the whole
183 * initialization sequence configurable to the user.
184 *
185 * The requirements for any new initalization function is simple: it
186 * receives a pointer to the "global data" structure as it's only
187 * argument, and returns an integer return code, where 0 means
188 * "continue" and != 0 means "fatal error, hang the system".
189 */
190 typedef int (init_fnc_t) (void);
191
192 /************************************************************************
193 * Init Utilities *
194 ************************************************************************
195 * Some of this code should be moved into the core functions,
196 * but let's get it working (again) first...
197 */
198
199 static int init_baudrate (void)
200 {
201 char tmp[64]; /* long enough for environment variables */
202 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
203
204 gd->baudrate = (i > 0)
205 ? (int) simple_strtoul (tmp, NULL, 10)
206 : CONFIG_BAUDRATE;
207 return (0);
208 }
209
210 /***********************************************************************/
211
212 #ifdef CONFIG_ADD_RAM_INFO
213 void board_add_ram_info(int);
214 #endif
215
216 static int init_func_ram (void)
217 {
218 #ifdef CONFIG_BOARD_TYPES
219 int board_type = gd->board_type;
220 #else
221 int board_type = 0; /* use dummy arg */
222 #endif
223 puts ("DRAM: ");
224
225 if ((gd->ram_size = initdram (board_type)) > 0) {
226 print_size (gd->ram_size, "");
227 #ifdef CONFIG_ADD_RAM_INFO
228 board_add_ram_info(0);
229 #endif
230 putc('\n');
231 return (0);
232 }
233 puts (failed);
234 return (1);
235 }
236
237 /***********************************************************************/
238
239 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
240 static int init_func_i2c (void)
241 {
242 puts ("I2C: ");
243 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
244 puts ("ready\n");
245 return (0);
246 }
247 #endif
248
249 /***********************************************************************/
250
251 #if defined(CONFIG_WATCHDOG)
252 static int init_func_watchdog_init (void)
253 {
254 puts (" Watchdog enabled\n");
255 WATCHDOG_RESET ();
256 return (0);
257 }
258 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
259
260 static int init_func_watchdog_reset (void)
261 {
262 WATCHDOG_RESET ();
263 return (0);
264 }
265 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
266 #else
267 # define INIT_FUNC_WATCHDOG_INIT /* undef */
268 # define INIT_FUNC_WATCHDOG_RESET /* undef */
269 #endif /* CONFIG_WATCHDOG */
270
271 /************************************************************************
272 * Initialization sequence *
273 ************************************************************************
274 */
275
276 init_fnc_t *init_sequence[] = {
277
278 #if defined(CONFIG_BOARD_EARLY_INIT_F)
279 board_early_init_f,
280 #endif
281
282 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
283 get_clocks, /* get CPU and bus clocks (etc.) */
284 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
285 && !defined(CONFIG_TQM885D)
286 adjust_sdram_tbs_8xx,
287 #endif
288 init_timebase,
289 #endif
290 #ifdef CFG_ALLOC_DPRAM
291 #if !defined(CONFIG_CPM2)
292 dpram_init,
293 #endif
294 #endif
295 #if defined(CONFIG_BOARD_POSTCLK_INIT)
296 board_postclk_init,
297 #endif
298 env_init,
299 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
300 get_clocks_866, /* get CPU and bus clocks according to the environment variable */
301 sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
302 init_timebase,
303 #endif
304 init_baudrate,
305 serial_init,
306 console_init_f,
307 display_options,
308 #if defined(CONFIG_8260)
309 prt_8260_rsr,
310 prt_8260_clks,
311 #endif /* CONFIG_8260 */
312
313 checkcpu,
314 #if defined(CONFIG_MPC5xxx)
315 prt_mpc5xxx_clks,
316 #endif /* CONFIG_MPC5xxx */
317 #if defined(CONFIG_MPC8220)
318 prt_mpc8220_clks,
319 #endif
320 checkboard,
321 INIT_FUNC_WATCHDOG_INIT
322 #if defined(CONFIG_MISC_INIT_F)
323 misc_init_f,
324 #endif
325 INIT_FUNC_WATCHDOG_RESET
326 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
327 init_func_i2c,
328 #endif
329 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
330 dtt_init,
331 #endif
332 #ifdef CONFIG_POST
333 post_init_f,
334 #endif
335 INIT_FUNC_WATCHDOG_RESET
336 init_func_ram,
337 #if defined(CFG_DRAM_TEST)
338 testdram,
339 #endif /* CFG_DRAM_TEST */
340 INIT_FUNC_WATCHDOG_RESET
341
342 NULL, /* Terminate this list */
343 };
344
345 /************************************************************************
346 *
347 * This is the first part of the initialization sequence that is
348 * implemented in C, but still running from ROM.
349 *
350 * The main purpose is to provide a (serial) console interface as
351 * soon as possible (so we can see any error messages), and to
352 * initialize the RAM so that we can relocate the monitor code to
353 * RAM.
354 *
355 * Be aware of the restrictions: global data is read-only, BSS is not
356 * initialized, and stack space is limited to a few kB.
357 *
358 ************************************************************************
359 */
360
361 void board_init_f (ulong bootflag)
362 {
363 bd_t *bd;
364 ulong len, addr, addr_sp;
365 ulong *s;
366 gd_t *id;
367 init_fnc_t **init_fnc_ptr;
368 #ifdef CONFIG_PRAM
369 int i;
370 ulong reg;
371 uchar tmp[64]; /* long enough for environment variables */
372 #endif
373
374 /* Pointer is writable since we allocated a register for it */
375 gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
376 /* compiler optimization barrier needed for GCC >= 3.4 */
377 __asm__ __volatile__("": : :"memory");
378
379 #if !defined(CONFIG_CPM2)
380 /* Clear initial global data */
381 memset ((void *) gd, 0, sizeof (gd_t));
382 #endif
383
384 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
385 if ((*init_fnc_ptr) () != 0) {
386 hang ();
387 }
388 }
389
390 /*
391 * Now that we have DRAM mapped and working, we can
392 * relocate the code and continue running from DRAM.
393 *
394 * Reserve memory at end of RAM for (top down in that order):
395 * - kernel log buffer
396 * - protected RAM
397 * - LCD framebuffer
398 * - monitor code
399 * - board info struct
400 */
401 len = (ulong)&_end - CFG_MONITOR_BASE;
402
403 #ifndef CONFIG_VERY_BIG_RAM
404 addr = CFG_SDRAM_BASE + gd->ram_size;
405 #else
406 /* only allow stack below 256M */
407 addr = CFG_SDRAM_BASE +
408 (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
409 #endif
410
411 #ifdef CONFIG_LOGBUFFER
412 /* reserve kernel log buffer */
413 addr -= (LOGBUFF_RESERVE);
414 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
415 #endif
416
417 #ifdef CONFIG_PRAM
418 /*
419 * reserve protected RAM
420 */
421 i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
422 reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
423 addr -= (reg << 10); /* size is in kB */
424 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
425 #endif /* CONFIG_PRAM */
426
427 /* round down to next 4 kB limit */
428 addr &= ~(4096 - 1);
429 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
430
431 #ifdef CONFIG_LCD
432 /* reserve memory for LCD display (always full pages) */
433 addr = lcd_setmem (addr);
434 gd->fb_base = addr;
435 #endif /* CONFIG_LCD */
436
437 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
438 /* reserve memory for video display (always full pages) */
439 addr = video_setmem (addr);
440 gd->fb_base = addr;
441 #endif /* CONFIG_VIDEO */
442
443 /*
444 * reserve memory for U-Boot code, data & bss
445 * round down to next 4 kB limit
446 */
447 addr -= len;
448 addr &= ~(4096 - 1);
449 #ifdef CONFIG_E500
450 /* round down to next 64 kB limit so that IVPR stays aligned */
451 addr &= ~(65536 - 1);
452 #endif
453
454 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
455
456 #ifdef CONFIG_AMIGAONEG3SE
457 gd->relocaddr = addr;
458 #endif
459
460 /*
461 * reserve memory for malloc() arena
462 */
463 addr_sp = addr - TOTAL_MALLOC_LEN;
464 debug ("Reserving %dk for malloc() at: %08lx\n",
465 TOTAL_MALLOC_LEN >> 10, addr_sp);
466
467 /*
468 * (permanently) allocate a Board Info struct
469 * and a permanent copy of the "global" data
470 */
471 addr_sp -= sizeof (bd_t);
472 bd = (bd_t *) addr_sp;
473 gd->bd = bd;
474 debug ("Reserving %d Bytes for Board Info at: %08lx\n",
475 sizeof (bd_t), addr_sp);
476 addr_sp -= sizeof (gd_t);
477 id = (gd_t *) addr_sp;
478 debug ("Reserving %d Bytes for Global Data at: %08lx\n",
479 sizeof (gd_t), addr_sp);
480
481 /*
482 * Finally, we set up a new (bigger) stack.
483 *
484 * Leave some safety gap for SP, force alignment on 16 byte boundary
485 * Clear initial stack frame
486 */
487 addr_sp -= 16;
488 addr_sp &= ~0xF;
489 s = (ulong *)addr_sp;
490 *s-- = 0;
491 *s-- = 0;
492 addr_sp = (ulong)s;
493 debug ("Stack Pointer at: %08lx\n", addr_sp);
494
495 /*
496 * Save local variables to board info struct
497 */
498
499 bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
500 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
501
502 #ifdef CONFIG_IP860
503 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
504 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
505 #elif defined CONFIG_MPC8220
506 bd->bi_sramstart = CFG_SRAM_BASE; /* start of SRAM memory */
507 bd->bi_sramsize = CFG_SRAM_SIZE; /* size of SRAM memory */
508 #else
509 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
510 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
511 #endif
512
513 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
514 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
515 bd->bi_immr_base = CFG_IMMR; /* base of IMMR register */
516 #endif
517 #if defined(CONFIG_MPC5xxx)
518 bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
519 #endif
520 #if defined(CONFIG_MPC83XX)
521 bd->bi_immrbar = CFG_IMMR;
522 #endif
523 #if defined(CONFIG_MPC8220)
524 bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
525 bd->bi_inpfreq = gd->inp_clk;
526 bd->bi_pcifreq = gd->pci_clk;
527 bd->bi_vcofreq = gd->vco_clk;
528 bd->bi_pevfreq = gd->pev_clk;
529 bd->bi_flbfreq = gd->flb_clk;
530
531 /* store bootparam to sram (backward compatible), here? */
532 {
533 u32 *sram = (u32 *)CFG_SRAM_BASE;
534 *sram++ = gd->ram_size;
535 *sram++ = gd->bus_clk;
536 *sram++ = gd->inp_clk;
537 *sram++ = gd->cpu_clk;
538 *sram++ = gd->vco_clk;
539 *sram++ = gd->flb_clk;
540 *sram++ = 0xb8c3ba11; /* boot signature */
541 }
542 #endif
543
544 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
545
546 WATCHDOG_RESET ();
547 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
548 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
549 #if defined(CONFIG_CPM2)
550 bd->bi_cpmfreq = gd->cpm_clk;
551 bd->bi_brgfreq = gd->brg_clk;
552 bd->bi_sccfreq = gd->scc_clk;
553 bd->bi_vco = gd->vco_out;
554 #endif /* CONFIG_CPM2 */
555 #if defined(CONFIG_MPC5xxx)
556 bd->bi_ipbfreq = gd->ipb_clk;
557 bd->bi_pcifreq = gd->pci_clk;
558 #endif /* CONFIG_MPC5xxx */
559 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
560
561 #ifdef CFG_EXTBDINFO
562 strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
563 strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
564
565 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
566 bd->bi_plb_busfreq = gd->bus_clk;
567 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
568 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
569 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
570 bd->bi_pci_busfreq = get_PCI_freq ();
571 bd->bi_opbfreq = get_OPB_freq ();
572 #elif defined(CONFIG_XILINX_ML300)
573 bd->bi_pci_busfreq = get_PCI_freq ();
574 #endif
575 #endif
576
577 debug ("New Stack Pointer is: %08lx\n", addr_sp);
578
579 WATCHDOG_RESET ();
580
581 #ifdef CONFIG_POST
582 post_bootmode_init();
583 post_run (NULL, POST_ROM | post_bootmode_get(0));
584 #endif
585
586 WATCHDOG_RESET();
587
588 memcpy (id, (void *)gd, sizeof (gd_t));
589
590 relocate_code (addr_sp, id, addr);
591
592 /* NOTREACHED - relocate_code() does not return */
593 }
594
595 /************************************************************************
596 *
597 * This is the next part if the initialization sequence: we are now
598 * running from RAM and have a "normal" C environment, i. e. global
599 * data can be written, BSS has been cleared, the stack size in not
600 * that critical any more, etc.
601 *
602 ************************************************************************
603 */
604 void board_init_r (gd_t *id, ulong dest_addr)
605 {
606 cmd_tbl_t *cmdtp;
607 char *s, *e;
608 bd_t *bd;
609 int i;
610 extern void malloc_bin_reloc (void);
611 #ifndef CFG_ENV_IS_NOWHERE
612 extern char * env_name_spec;
613 #endif
614
615 #ifndef CFG_NO_FLASH
616 ulong flash_size;
617 #endif
618
619 gd = id; /* initialize RAM version of global data */
620 bd = gd->bd;
621
622 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
623
624 #if defined(CONFIG_RELOC_FIXUP_WORKS)
625 gd->reloc_off = 0;
626 mem_malloc_end = dest_addr;
627 #else
628 gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
629 #endif
630
631 #ifdef CONFIG_SERIAL_MULTI
632 serial_initialize();
633 #endif
634
635 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
636
637 WATCHDOG_RESET ();
638
639 #if defined(CONFIG_BOARD_EARLY_INIT_R)
640 board_early_init_r ();
641 #endif
642
643 monitor_flash_len = (ulong)&__init_end - dest_addr;
644
645 /*
646 * We have to relocate the command table manually
647 */
648 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
649 ulong addr;
650 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
651 #if 0
652 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
653 cmdtp->name, (ulong) (cmdtp->cmd), addr);
654 #endif
655 cmdtp->cmd =
656 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
657
658 addr = (ulong)(cmdtp->name) + gd->reloc_off;
659 cmdtp->name = (char *)addr;
660
661 if (cmdtp->usage) {
662 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
663 cmdtp->usage = (char *)addr;
664 }
665 #ifdef CFG_LONGHELP
666 if (cmdtp->help) {
667 addr = (ulong)(cmdtp->help) + gd->reloc_off;
668 cmdtp->help = (char *)addr;
669 }
670 #endif
671 }
672 /* there are some other pointer constants we must deal with */
673 #ifndef CFG_ENV_IS_NOWHERE
674 env_name_spec += gd->reloc_off;
675 #endif
676
677 WATCHDOG_RESET ();
678
679 #ifdef CONFIG_LOGBUFFER
680 logbuff_init_ptrs ();
681 #endif
682 #ifdef CONFIG_POST
683 post_output_backlog ();
684 post_reloc ();
685 #endif
686
687 WATCHDOG_RESET();
688
689 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || \
690 defined (CONFIG_FLAGADM) || defined(CONFIG_MPC83XX)
691 icache_enable (); /* it's time to enable the instruction cache */
692 #endif
693
694 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
695 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
696 #endif
697
698 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
699 /*
700 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
701 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
702 * bridge there.
703 */
704 pci_init ();
705 #endif
706 #if defined(CONFIG_BAB7xx)
707 /*
708 * Initialise the ISA bridge
709 */
710 initialise_w83c553f ();
711 #endif
712
713 asm ("sync ; isync");
714
715 /*
716 * Setup trap handlers
717 */
718 trap_init (dest_addr);
719
720 #if !defined(CFG_NO_FLASH)
721 puts ("FLASH: ");
722
723 if ((flash_size = flash_init ()) > 0) {
724 # ifdef CFG_FLASH_CHECKSUM
725 print_size (flash_size, "");
726 /*
727 * Compute and print flash CRC if flashchecksum is set to 'y'
728 *
729 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
730 */
731 s = getenv ("flashchecksum");
732 if (s && (*s == 'y')) {
733 printf (" CRC: %08lX",
734 crc32 (0, (const unsigned char *) CFG_FLASH_BASE, flash_size)
735 );
736 }
737 putc ('\n');
738 # else /* !CFG_FLASH_CHECKSUM */
739 print_size (flash_size, "\n");
740 # endif /* CFG_FLASH_CHECKSUM */
741 } else {
742 puts (failed);
743 hang ();
744 }
745
746 bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */
747 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
748
749 #if defined(CFG_UPDATE_FLASH_SIZE)
750 /* Make a update of the Memctrl. */
751 update_flash_size (flash_size);
752 #endif
753
754
755 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
756 /* flash mapped at end of memory map */
757 bd->bi_flashoffset = TEXT_BASE + flash_size;
758 # elif CFG_MONITOR_BASE == CFG_FLASH_BASE
759 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
760 # else
761 bd->bi_flashoffset = 0;
762 # endif
763 #else /* CFG_NO_FLASH */
764
765 bd->bi_flashsize = 0;
766 bd->bi_flashstart = 0;
767 bd->bi_flashoffset = 0;
768 #endif /* !CFG_NO_FLASH */
769
770 WATCHDOG_RESET ();
771
772 /* initialize higher level parts of CPU like time base and timers */
773 cpu_init_r ();
774
775 WATCHDOG_RESET ();
776
777 /* initialize malloc() area */
778 mem_malloc_init ();
779 malloc_bin_reloc ();
780
781 #ifdef CONFIG_SPI
782 # if !defined(CFG_ENV_IS_IN_EEPROM)
783 spi_init_f ();
784 # endif
785 spi_init_r ();
786 #endif
787
788 #if defined(CONFIG_CMD_NAND)
789 WATCHDOG_RESET ();
790 puts ("NAND: ");
791 nand_init(); /* go init the NAND */
792 #endif
793
794 /* relocate environment function pointers etc. */
795 env_relocate ();
796
797 /*
798 * Fill in missing fields of bd_info.
799 * We do this here, where we have "normal" access to the
800 * environment; we used to do this still running from ROM,
801 * where had to use getenv_r(), which can be pretty slow when
802 * the environment is in EEPROM.
803 */
804
805 #if defined(CFG_EXTBDINFO)
806 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
807 #if defined(CONFIG_I2CFAST)
808 /*
809 * set bi_iic_fast for linux taking environment variable
810 * "i2cfast" into account
811 */
812 {
813 char *s = getenv ("i2cfast");
814 if (s && ((*s == 'y') || (*s == 'Y'))) {
815 bd->bi_iic_fast[0] = 1;
816 bd->bi_iic_fast[1] = 1;
817 } else {
818 bd->bi_iic_fast[0] = 0;
819 bd->bi_iic_fast[1] = 0;
820 }
821 }
822 #else
823 bd->bi_iic_fast[0] = 0;
824 bd->bi_iic_fast[1] = 0;
825 #endif /* CONFIG_I2CFAST */
826 #endif /* CONFIG_405GP, CONFIG_405EP */
827 #endif /* CFG_EXTBDINFO */
828
829 #if defined(CONFIG_SC3)
830 sc3_read_eeprom();
831 #endif
832 s = getenv ("ethaddr");
833 #if defined (CONFIG_MBX) || \
834 defined (CONFIG_RPXCLASSIC) || \
835 defined(CONFIG_IAD210) || \
836 defined(CONFIG_V38B)
837 if (s == NULL)
838 board_get_enetaddr (bd->bi_enetaddr);
839 else
840 #endif
841 for (i = 0; i < 6; ++i) {
842 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
843 if (s)
844 s = (*e) ? e + 1 : e;
845 }
846 #ifdef CONFIG_HERMES
847 if ((gd->board_type >> 16) == 2)
848 bd->bi_ethspeed = gd->board_type & 0xFFFF;
849 else
850 bd->bi_ethspeed = 0xFFFF;
851 #endif
852
853 #ifdef CONFIG_NX823
854 load_sernum_ethaddr ();
855 #endif
856
857 #ifdef CONFIG_HAS_ETH1
858 /* handle the 2nd ethernet address */
859
860 s = getenv ("eth1addr");
861
862 for (i = 0; i < 6; ++i) {
863 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
864 if (s)
865 s = (*e) ? e + 1 : e;
866 }
867 #endif
868 #ifdef CONFIG_HAS_ETH2
869 /* handle the 3rd ethernet address */
870
871 s = getenv ("eth2addr");
872 #if defined(CONFIG_XPEDITE1K) || defined(CONFIG_METROBOX) || defined(CONFIG_KAREF)
873 if (s == NULL)
874 board_get_enetaddr(bd->bi_enet2addr);
875 else
876 #endif
877 for (i = 0; i < 6; ++i) {
878 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
879 if (s)
880 s = (*e) ? e + 1 : e;
881 }
882 #endif
883
884 #ifdef CONFIG_HAS_ETH3
885 /* handle 4th ethernet address */
886 s = getenv("eth3addr");
887 #if defined(CONFIG_XPEDITE1K) || defined(CONFIG_METROBOX) || defined(CONFIG_KAREF)
888 if (s == NULL)
889 board_get_enetaddr(bd->bi_enet3addr);
890 else
891 #endif
892 for (i = 0; i < 6; ++i) {
893 bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
894 if (s)
895 s = (*e) ? e + 1 : e;
896 }
897 #endif
898
899 #ifdef CFG_ID_EEPROM
900 mac_read_from_eeprom();
901 #endif
902
903 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
904 defined(CONFIG_TQM8272) || \
905 defined(CONFIG_CCM) || defined(CONFIG_KUP4K) || \
906 defined(CONFIG_KUP4X) || defined(CONFIG_PCS440EP)
907 load_sernum_ethaddr ();
908 #endif
909 /* IP Address */
910 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
911
912 WATCHDOG_RESET ();
913
914 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45)
915 /*
916 * Do pci configuration
917 */
918 pci_init ();
919 #endif
920
921 /** leave this here (after malloc(), environment and PCI are working) **/
922 /* Initialize devices */
923 devices_init ();
924
925 /* Initialize the jump table for applications */
926 jumptable_init ();
927
928 /* Initialize the console (after the relocation and devices init) */
929 console_init_r ();
930
931 #if defined(CONFIG_CCM) || \
932 defined(CONFIG_COGENT) || \
933 defined(CONFIG_CPCI405) || \
934 defined(CONFIG_EVB64260) || \
935 defined(CONFIG_KUP4K) || \
936 defined(CONFIG_KUP4X) || \
937 defined(CONFIG_LWMON) || \
938 defined(CONFIG_PCU_E) || \
939 defined(CONFIG_SC3) || \
940 defined(CONFIG_W7O) || \
941 defined(CONFIG_MISC_INIT_R)
942 /* miscellaneous platform dependent initialisations */
943 misc_init_r ();
944 #endif
945
946 #ifdef CONFIG_HERMES
947 if (bd->bi_ethspeed != 0xFFFF)
948 hermes_start_lxt980 ((int) bd->bi_ethspeed);
949 #endif
950
951 #if defined(CONFIG_CMD_KGDB)
952 WATCHDOG_RESET ();
953 puts ("KGDB: ");
954 kgdb_init ();
955 #endif
956
957 debug ("U-Boot relocated to %08lx\n", dest_addr);
958
959 /*
960 * Enable Interrupts
961 */
962 interrupt_init ();
963
964 /* Must happen after interrupts are initialized since
965 * an irq handler gets installed
966 */
967 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
968 serial_buffered_init();
969 #endif
970
971 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
972 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
973 #endif
974
975 udelay (20);
976
977 set_timer (0);
978
979 /* Initialize from environment */
980 if ((s = getenv ("loadaddr")) != NULL) {
981 load_addr = simple_strtoul (s, NULL, 16);
982 }
983 #if defined(CONFIG_CMD_NET)
984 if ((s = getenv ("bootfile")) != NULL) {
985 copy_filename (BootFile, s, sizeof (BootFile));
986 }
987 #endif
988
989 WATCHDOG_RESET ();
990
991 #if defined(CONFIG_CMD_SCSI)
992 WATCHDOG_RESET ();
993 puts ("SCSI: ");
994 scsi_init ();
995 #endif
996
997 #if defined(CONFIG_CMD_DOC)
998 WATCHDOG_RESET ();
999 puts ("DOC: ");
1000 doc_init ();
1001 #endif
1002
1003 #if defined(CONFIG_CMD_NET)
1004 #if defined(CONFIG_NET_MULTI)
1005 WATCHDOG_RESET ();
1006 puts ("Net: ");
1007 #endif
1008 eth_initialize (bd);
1009 #endif
1010
1011 #if defined(CONFIG_CMD_NET) && ( \
1012 defined(CONFIG_CCM) || \
1013 defined(CONFIG_ELPT860) || \
1014 defined(CONFIG_EP8260) || \
1015 defined(CONFIG_IP860) || \
1016 defined(CONFIG_IVML24) || \
1017 defined(CONFIG_IVMS8) || \
1018 defined(CONFIG_MPC8260ADS) || \
1019 defined(CONFIG_MPC8266ADS) || \
1020 defined(CONFIG_MPC8560ADS) || \
1021 defined(CONFIG_PCU_E) || \
1022 defined(CONFIG_RPXSUPER) || \
1023 defined(CONFIG_STXGP3) || \
1024 defined(CONFIG_SPD823TS) || \
1025 defined(CONFIG_RESET_PHY_R) )
1026
1027 WATCHDOG_RESET ();
1028 debug ("Reset Ethernet PHY\n");
1029 reset_phy ();
1030 #endif
1031
1032 #ifdef CONFIG_POST
1033 post_run (NULL, POST_RAM | post_bootmode_get(0));
1034 #endif
1035
1036 #if defined(CONFIG_CMD_PCMCIA) \
1037 && !defined(CONFIG_CMD_IDE)
1038 WATCHDOG_RESET ();
1039 puts ("PCMCIA:");
1040 pcmcia_init ();
1041 #endif
1042
1043 #if defined(CONFIG_CMD_IDE)
1044 WATCHDOG_RESET ();
1045 # ifdef CONFIG_IDE_8xx_PCCARD
1046 puts ("PCMCIA:");
1047 # else
1048 puts ("IDE: ");
1049 #endif
1050 #if defined(CONFIG_START_IDE)
1051 if (board_start_ide())
1052 ide_init ();
1053 #else
1054 ide_init ();
1055 #endif
1056 #endif
1057
1058 #ifdef CONFIG_LAST_STAGE_INIT
1059 WATCHDOG_RESET ();
1060 /*
1061 * Some parts can be only initialized if all others (like
1062 * Interrupts) are up and running (i.e. the PC-style ISA
1063 * keyboard).
1064 */
1065 last_stage_init ();
1066 #endif
1067
1068 #if defined(CONFIG_CMD_BEDBUG)
1069 WATCHDOG_RESET ();
1070 bedbug_init ();
1071 #endif
1072
1073 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
1074 /*
1075 * Export available size of memory for Linux,
1076 * taking into account the protected RAM at top of memory
1077 */
1078 {
1079 ulong pram;
1080 uchar memsz[32];
1081 #ifdef CONFIG_PRAM
1082 char *s;
1083
1084 if ((s = getenv ("pram")) != NULL) {
1085 pram = simple_strtoul (s, NULL, 10);
1086 } else {
1087 pram = CONFIG_PRAM;
1088 }
1089 #else
1090 pram=0;
1091 #endif
1092 #ifdef CONFIG_LOGBUFFER
1093 /* Also take the logbuffer into account (pram is in kB) */
1094 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1095 #endif
1096 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1097 setenv ("mem", (char *)memsz);
1098 }
1099 #endif
1100
1101 #ifdef CONFIG_PS2KBD
1102 puts ("PS/2: ");
1103 kbd_init();
1104 #endif
1105
1106 #ifdef CONFIG_MODEM_SUPPORT
1107 {
1108 extern int do_mdm_init;
1109 do_mdm_init = gd->do_mdm_init;
1110 }
1111 #endif
1112
1113 /* Initialization complete - start the monitor */
1114
1115 /* main_loop() can return to retry autoboot, if so just run it again. */
1116 for (;;) {
1117 WATCHDOG_RESET ();
1118 main_loop ();
1119 }
1120
1121 /* NOTREACHED - no way out of command loop except booting */
1122 }
1123
1124 void hang (void)
1125 {
1126 puts ("### ERROR ### Please RESET the board ###\n");
1127 #ifdef CONFIG_SHOW_BOOT_PROGRESS
1128 show_boot_progress(-30);
1129 #endif
1130 for (;;);
1131 }
1132
1133 #ifdef CONFIG_MODEM_SUPPORT
1134 /* called from main loop (common/main.c) */
1135 /* 'inline' - We have to do it fast */
1136 static inline void mdm_readline(char *buf, int bufsiz)
1137 {
1138 char c;
1139 char *p;
1140 int n;
1141
1142 n = 0;
1143 p = buf;
1144 for(;;) {
1145 c = serial_getc();
1146
1147 /* dbg("(%c)", c); */
1148
1149 switch(c) {
1150 case '\r':
1151 break;
1152 case '\n':
1153 *p = '\0';
1154 return;
1155
1156 default:
1157 if(n++ > bufsiz) {
1158 *p = '\0';
1159 return; /* sanity check */
1160 }
1161 *p = c;
1162 p++;
1163 break;
1164 }
1165 }
1166 }
1167
1168 extern void dbg(const char *fmt, ...);
1169 int mdm_init (void)
1170 {
1171 char env_str[16];
1172 char *init_str;
1173 int i;
1174 extern char console_buffer[];
1175 extern void enable_putc(void);
1176 extern int hwflow_onoff(int);
1177
1178 enable_putc(); /* enable serial_putc() */
1179
1180 #ifdef CONFIG_HWFLOW
1181 init_str = getenv("mdm_flow_control");
1182 if (init_str && (strcmp(init_str, "rts/cts") == 0))
1183 hwflow_onoff (1);
1184 else
1185 hwflow_onoff(-1);
1186 #endif
1187
1188 for (i = 1;;i++) {
1189 sprintf(env_str, "mdm_init%d", i);
1190 if ((init_str = getenv(env_str)) != NULL) {
1191 serial_puts(init_str);
1192 serial_puts("\n");
1193 for(;;) {
1194 mdm_readline(console_buffer, CFG_CBSIZE);
1195 dbg("ini%d: [%s]", i, console_buffer);
1196
1197 if ((strcmp(console_buffer, "OK") == 0) ||
1198 (strcmp(console_buffer, "ERROR") == 0)) {
1199 dbg("ini%d: cmd done", i);
1200 break;
1201 } else /* in case we are originating call ... */
1202 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1203 dbg("ini%d: connect", i);
1204 return 0;
1205 }
1206 }
1207 } else
1208 break; /* no init string - stop modem init */
1209
1210 udelay(100000);
1211 }
1212
1213 udelay(100000);
1214
1215 /* final stage - wait for connect */
1216 for(;i > 1;) { /* if 'i' > 1 - wait for connection
1217 message from modem */
1218 mdm_readline(console_buffer, CFG_CBSIZE);
1219 dbg("ini_f: [%s]", console_buffer);
1220 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1221 dbg("ini_f: connected");
1222 return 0;
1223 }
1224 }
1225
1226 return 0;
1227 }
1228
1229 #endif
1230
1231 #if 0 /* We could use plain global data, but the resulting code is bigger */
1232 /*
1233 * Pointer to initial global data area
1234 *
1235 * Here we initialize it.
1236 */
1237 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1238 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1239 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1240 #endif /* 0 */
1241
1242 /************************************************************************/
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