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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 #ifdef CONFIG_GENERIC_MMC
52 #include <mmc.h>
53 #endif
54 #include <serial.h>
55 #ifdef CONFIG_SYS_ALLOC_DPRAM
56 #if !defined(CONFIG_CPM2)
57 #include <commproc.h>
58 #endif
59 #endif
60 #include <version.h>
61 #if defined(CONFIG_BAB7xx)
62 #include <w83c553f.h>
63 #endif
64 #include <dtt.h>
65 #if defined(CONFIG_POST)
66 #include <post.h>
67 #endif
68 #if defined(CONFIG_LOGBUFFER)
69 #include <logbuff.h>
70 #endif
71 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
72 #include <asm/cache.h>
73 #endif
74 #ifdef CONFIG_PS2KBD
75 #include <keyboard.h>
76 #endif
77
78 #ifdef CONFIG_ADDR_MAP
79 #include <asm/mmu.h>
80 #endif
81
82 #ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
83 extern int update_flash_size (int flash_size);
84 #endif
85
86 #if defined(CONFIG_SC3)
87 extern void sc3_read_eeprom(void);
88 #endif
89
90 #if defined(CONFIG_CMD_DOC)
91 void doc_init (void);
92 #endif
93 #if defined(CONFIG_HARD_I2C) || \
94 defined(CONFIG_SOFT_I2C)
95 #include <i2c.h>
96 #endif
97 #include <spi.h>
98 #include <nand.h>
99
100 static char *failed = "*** failed ***\n";
101
102 #if defined(CONFIG_OXC) || defined(CONFIG_PCU_E) || defined(CONFIG_RMU)
103 extern flash_info_t flash_info[];
104 #endif
105
106 #if defined(CONFIG_START_IDE)
107 extern int board_start_ide(void);
108 #endif
109 #include <environment.h>
110
111 DECLARE_GLOBAL_DATA_PTR;
112
113 #if defined(CONFIG_ENV_IS_EMBEDDED)
114 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
115 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
116 (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
117 defined(CONFIG_ENV_IS_IN_NVRAM)
118 #define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
119 #else
120 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
121 #endif
122
123 #if !defined(CONFIG_SYS_MEM_TOP_HIDE)
124 #define CONFIG_SYS_MEM_TOP_HIDE 0
125 #endif
126
127 extern ulong __init_end;
128 extern ulong _end;
129 ulong monitor_flash_len;
130
131 #if defined(CONFIG_CMD_BEDBUG)
132 #include <bedbug/type.h>
133 #endif
134
135 /*
136 * Begin and End of memory area for malloc(), and current "brk"
137 */
138 static ulong mem_malloc_start = 0;
139 static ulong mem_malloc_end = 0;
140 static ulong mem_malloc_brk = 0;
141
142 /************************************************************************
143 * Utilities *
144 ************************************************************************
145 */
146
147 /*
148 * The Malloc area is immediately below the monitor copy in DRAM
149 */
150 static void mem_malloc_init (void)
151 {
152 #if !defined(CONFIG_RELOC_FIXUP_WORKS)
153 mem_malloc_end = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
154 #endif
155 mem_malloc_start = mem_malloc_end - TOTAL_MALLOC_LEN;
156 mem_malloc_brk = mem_malloc_start;
157
158 memset ((void *) mem_malloc_start,
159 0,
160 mem_malloc_end - mem_malloc_start);
161 }
162
163 void *sbrk (ptrdiff_t increment)
164 {
165 ulong old = mem_malloc_brk;
166 ulong new = old + increment;
167
168 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
169 return (NULL);
170 }
171 mem_malloc_brk = new;
172 return ((void *) old);
173 }
174
175 /*
176 * All attempts to come up with a "common" initialization sequence
177 * that works for all boards and architectures failed: some of the
178 * requirements are just _too_ different. To get rid of the resulting
179 * mess of board dependend #ifdef'ed code we now make the whole
180 * initialization sequence configurable to the user.
181 *
182 * The requirements for any new initalization function is simple: it
183 * receives a pointer to the "global data" structure as it's only
184 * argument, and returns an integer return code, where 0 means
185 * "continue" and != 0 means "fatal error, hang the system".
186 */
187 typedef int (init_fnc_t) (void);
188
189 /************************************************************************
190 * Init Utilities *
191 ************************************************************************
192 * Some of this code should be moved into the core functions,
193 * but let's get it working (again) first...
194 */
195
196 static int init_baudrate (void)
197 {
198 char tmp[64]; /* long enough for environment variables */
199 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
200
201 gd->baudrate = (i > 0)
202 ? (int) simple_strtoul (tmp, NULL, 10)
203 : CONFIG_BAUDRATE;
204 return (0);
205 }
206
207 /***********************************************************************/
208
209 void __board_add_ram_info(int use_default)
210 {
211 /* please define platform specific board_add_ram_info() */
212 }
213 void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info")));
214
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 board_add_ram_info(0);
228 putc('\n');
229 return (0);
230 }
231 puts (failed);
232 return (1);
233 }
234
235 /***********************************************************************/
236
237 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
238 static int init_func_i2c (void)
239 {
240 puts ("I2C: ");
241 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
242 puts ("ready\n");
243 return (0);
244 }
245 #endif
246
247 #if defined(CONFIG_HARD_SPI)
248 static int init_func_spi (void)
249 {
250 puts ("SPI: ");
251 spi_init ();
252 puts ("ready\n");
253 return (0);
254 }
255 #endif
256
257 /***********************************************************************/
258
259 #if defined(CONFIG_WATCHDOG)
260 static int init_func_watchdog_init (void)
261 {
262 puts (" Watchdog enabled\n");
263 WATCHDOG_RESET ();
264 return (0);
265 }
266 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
267
268 static int init_func_watchdog_reset (void)
269 {
270 WATCHDOG_RESET ();
271 return (0);
272 }
273 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
274 #else
275 # define INIT_FUNC_WATCHDOG_INIT /* undef */
276 # define INIT_FUNC_WATCHDOG_RESET /* undef */
277 #endif /* CONFIG_WATCHDOG */
278
279 /************************************************************************
280 * Initialization sequence *
281 ************************************************************************
282 */
283
284 init_fnc_t *init_sequence[] = {
285
286 #if defined(CONFIG_BOARD_EARLY_INIT_F)
287 board_early_init_f,
288 #endif
289
290 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
291 get_clocks, /* get CPU and bus clocks (etc.) */
292 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
293 && !defined(CONFIG_TQM885D)
294 adjust_sdram_tbs_8xx,
295 #endif
296 init_timebase,
297 #endif
298 #ifdef CONFIG_SYS_ALLOC_DPRAM
299 #if !defined(CONFIG_CPM2)
300 dpram_init,
301 #endif
302 #endif
303 #if defined(CONFIG_BOARD_POSTCLK_INIT)
304 board_postclk_init,
305 #endif
306 env_init,
307 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
308 get_clocks_866, /* get CPU and bus clocks according to the environment variable */
309 sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
310 init_timebase,
311 #endif
312 init_baudrate,
313 serial_init,
314 console_init_f,
315 display_options,
316 #if defined(CONFIG_8260)
317 prt_8260_rsr,
318 prt_8260_clks,
319 #endif /* CONFIG_8260 */
320 #if defined(CONFIG_MPC83XX)
321 prt_83xx_rsr,
322 #endif
323 checkcpu,
324 #if defined(CONFIG_MPC5xxx)
325 prt_mpc5xxx_clks,
326 #endif /* CONFIG_MPC5xxx */
327 #if defined(CONFIG_MPC8220)
328 prt_mpc8220_clks,
329 #endif
330 checkboard,
331 INIT_FUNC_WATCHDOG_INIT
332 #if defined(CONFIG_MISC_INIT_F)
333 misc_init_f,
334 #endif
335 INIT_FUNC_WATCHDOG_RESET
336 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
337 init_func_i2c,
338 #endif
339 #if defined(CONFIG_HARD_SPI)
340 init_func_spi,
341 #endif
342 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
343 dtt_init,
344 #endif
345 #ifdef CONFIG_POST
346 post_init_f,
347 #endif
348 INIT_FUNC_WATCHDOG_RESET
349 init_func_ram,
350 #if defined(CONFIG_SYS_DRAM_TEST)
351 testdram,
352 #endif /* CONFIG_SYS_DRAM_TEST */
353 INIT_FUNC_WATCHDOG_RESET
354
355 NULL, /* Terminate this list */
356 };
357
358 ulong get_effective_memsize(void)
359 {
360 #ifndef CONFIG_VERY_BIG_RAM
361 return gd->ram_size;
362 #else
363 /* limit stack to what we can reasonable map */
364 return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
365 CONFIG_MAX_MEM_MAPPED : gd->ram_size);
366 #endif
367 }
368
369 /************************************************************************
370 *
371 * This is the first part of the initialization sequence that is
372 * implemented in C, but still running from ROM.
373 *
374 * The main purpose is to provide a (serial) console interface as
375 * soon as possible (so we can see any error messages), and to
376 * initialize the RAM so that we can relocate the monitor code to
377 * RAM.
378 *
379 * Be aware of the restrictions: global data is read-only, BSS is not
380 * initialized, and stack space is limited to a few kB.
381 *
382 ************************************************************************
383 */
384
385 #ifdef CONFIG_LOGBUFFER
386 unsigned long logbuffer_base(void)
387 {
388 return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
389 }
390 #endif
391
392 void board_init_f (ulong bootflag)
393 {
394 bd_t *bd;
395 ulong len, addr, addr_sp;
396 ulong *s;
397 gd_t *id;
398 init_fnc_t **init_fnc_ptr;
399 #ifdef CONFIG_PRAM
400 int i;
401 ulong reg;
402 uchar tmp[64]; /* long enough for environment variables */
403 #endif
404
405 /* Pointer is writable since we allocated a register for it */
406 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
407 /* compiler optimization barrier needed for GCC >= 3.4 */
408 __asm__ __volatile__("": : :"memory");
409
410 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC83XX) && \
411 !defined(CONFIG_MPC85xx) && !defined(CONFIG_MPC86xx)
412 /* Clear initial global data */
413 memset ((void *) gd, 0, sizeof (gd_t));
414 #endif
415
416 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
417 if ((*init_fnc_ptr) () != 0) {
418 hang ();
419 }
420 }
421
422 /*
423 * Now that we have DRAM mapped and working, we can
424 * relocate the code and continue running from DRAM.
425 *
426 * Reserve memory at end of RAM for (top down in that order):
427 * - area that won't get touched by U-Boot and Linux (optional)
428 * - kernel log buffer
429 * - protected RAM
430 * - LCD framebuffer
431 * - monitor code
432 * - board info struct
433 */
434 len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
435
436 /*
437 * Subtract specified amount of memory to hide so that it won't
438 * get "touched" at all by U-Boot. By fixing up gd->ram_size
439 * the Linux kernel should now get passed the now "corrected"
440 * memory size and won't touch it either. This should work
441 * for arch/ppc and arch/powerpc. Only Linux board ports in
442 * arch/powerpc with bootwrapper support, that recalculate the
443 * memory size from the SDRAM controller setup will have to
444 * get fixed.
445 */
446 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
447
448 addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
449
450 #ifdef CONFIG_LOGBUFFER
451 #ifndef CONFIG_ALT_LB_ADDR
452 /* reserve kernel log buffer */
453 addr -= (LOGBUFF_RESERVE);
454 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
455 #endif
456 #endif
457
458 #ifdef CONFIG_PRAM
459 /*
460 * reserve protected RAM
461 */
462 i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
463 reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
464 addr -= (reg << 10); /* size is in kB */
465 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
466 #endif /* CONFIG_PRAM */
467
468 /* round down to next 4 kB limit */
469 addr &= ~(4096 - 1);
470 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
471
472 #ifdef CONFIG_LCD
473 /* reserve memory for LCD display (always full pages) */
474 addr = lcd_setmem (addr);
475 gd->fb_base = addr;
476 #endif /* CONFIG_LCD */
477
478 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
479 /* reserve memory for video display (always full pages) */
480 addr = video_setmem (addr);
481 gd->fb_base = addr;
482 #endif /* CONFIG_VIDEO */
483
484 /*
485 * reserve memory for U-Boot code, data & bss
486 * round down to next 4 kB limit
487 */
488 addr -= len;
489 addr &= ~(4096 - 1);
490 #ifdef CONFIG_E500
491 /* round down to next 64 kB limit so that IVPR stays aligned */
492 addr &= ~(65536 - 1);
493 #endif
494
495 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
496
497 #ifdef CONFIG_AMIGAONEG3SE
498 gd->relocaddr = addr;
499 #endif
500
501 /*
502 * reserve memory for malloc() arena
503 */
504 addr_sp = addr - TOTAL_MALLOC_LEN;
505 debug ("Reserving %dk for malloc() at: %08lx\n",
506 TOTAL_MALLOC_LEN >> 10, addr_sp);
507
508 /*
509 * (permanently) allocate a Board Info struct
510 * and a permanent copy of the "global" data
511 */
512 addr_sp -= sizeof (bd_t);
513 bd = (bd_t *) addr_sp;
514 gd->bd = bd;
515 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
516 sizeof (bd_t), addr_sp);
517 addr_sp -= sizeof (gd_t);
518 id = (gd_t *) addr_sp;
519 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
520 sizeof (gd_t), addr_sp);
521
522 /*
523 * Finally, we set up a new (bigger) stack.
524 *
525 * Leave some safety gap for SP, force alignment on 16 byte boundary
526 * Clear initial stack frame
527 */
528 addr_sp -= 16;
529 addr_sp &= ~0xF;
530 s = (ulong *)addr_sp;
531 *s-- = 0;
532 *s-- = 0;
533 addr_sp = (ulong)s;
534 debug ("Stack Pointer at: %08lx\n", addr_sp);
535
536 /*
537 * Save local variables to board info struct
538 */
539
540 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
541 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
542
543 #ifdef CONFIG_IP860
544 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
545 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
546 #elif defined CONFIG_MPC8220
547 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM memory */
548 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM memory */
549 #else
550 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
551 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
552 #endif
553
554 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
555 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
556 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
557 #endif
558 #if defined(CONFIG_MPC5xxx)
559 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
560 #endif
561 #if defined(CONFIG_MPC83XX)
562 bd->bi_immrbar = CONFIG_SYS_IMMR;
563 #endif
564 #if defined(CONFIG_MPC8220)
565 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
566 bd->bi_inpfreq = gd->inp_clk;
567 bd->bi_pcifreq = gd->pci_clk;
568 bd->bi_vcofreq = gd->vco_clk;
569 bd->bi_pevfreq = gd->pev_clk;
570 bd->bi_flbfreq = gd->flb_clk;
571
572 /* store bootparam to sram (backward compatible), here? */
573 {
574 u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE;
575 *sram++ = gd->ram_size;
576 *sram++ = gd->bus_clk;
577 *sram++ = gd->inp_clk;
578 *sram++ = gd->cpu_clk;
579 *sram++ = gd->vco_clk;
580 *sram++ = gd->flb_clk;
581 *sram++ = 0xb8c3ba11; /* boot signature */
582 }
583 #endif
584
585 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
586
587 WATCHDOG_RESET ();
588 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
589 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
590 #if defined(CONFIG_CPM2)
591 bd->bi_cpmfreq = gd->cpm_clk;
592 bd->bi_brgfreq = gd->brg_clk;
593 bd->bi_sccfreq = gd->scc_clk;
594 bd->bi_vco = gd->vco_out;
595 #endif /* CONFIG_CPM2 */
596 #if defined(CONFIG_MPC512X)
597 bd->bi_ipsfreq = gd->ips_clk;
598 #endif /* CONFIG_MPC512X */
599 #if defined(CONFIG_MPC5xxx)
600 bd->bi_ipbfreq = gd->ipb_clk;
601 bd->bi_pcifreq = gd->pci_clk;
602 #endif /* CONFIG_MPC5xxx */
603 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
604
605 #ifdef CONFIG_SYS_EXTBDINFO
606 strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
607 strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
608
609 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
610 bd->bi_plb_busfreq = gd->bus_clk;
611 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
612 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
613 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
614 bd->bi_pci_busfreq = get_PCI_freq ();
615 bd->bi_opbfreq = get_OPB_freq ();
616 #elif defined(CONFIG_XILINX_405)
617 bd->bi_pci_busfreq = get_PCI_freq ();
618 #endif
619 #endif
620
621 debug ("New Stack Pointer is: %08lx\n", addr_sp);
622
623 WATCHDOG_RESET ();
624
625 #ifdef CONFIG_POST
626 post_bootmode_init();
627 post_run (NULL, POST_ROM | post_bootmode_get(0));
628 #endif
629
630 WATCHDOG_RESET();
631
632 memcpy (id, (void *)gd, sizeof (gd_t));
633
634 relocate_code (addr_sp, id, addr);
635
636 /* NOTREACHED - relocate_code() does not return */
637 }
638
639 /************************************************************************
640 *
641 * This is the next part if the initialization sequence: we are now
642 * running from RAM and have a "normal" C environment, i. e. global
643 * data can be written, BSS has been cleared, the stack size in not
644 * that critical any more, etc.
645 *
646 ************************************************************************
647 */
648 void board_init_r (gd_t *id, ulong dest_addr)
649 {
650 cmd_tbl_t *cmdtp;
651 char *s, *e;
652 bd_t *bd;
653 int i;
654 extern void malloc_bin_reloc (void);
655 #ifndef CONFIG_ENV_IS_NOWHERE
656 extern char * env_name_spec;
657 #endif
658
659 #ifndef CONFIG_SYS_NO_FLASH
660 ulong flash_size;
661 #endif
662
663 gd = id; /* initialize RAM version of global data */
664 bd = gd->bd;
665
666 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
667
668 #if defined(CONFIG_RELOC_FIXUP_WORKS)
669 gd->reloc_off = 0;
670 mem_malloc_end = dest_addr;
671 #else
672 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
673 #endif
674
675 #ifdef CONFIG_SERIAL_MULTI
676 serial_initialize();
677 #endif
678
679 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
680
681 WATCHDOG_RESET ();
682
683 /*
684 * Setup trap handlers
685 */
686 trap_init (dest_addr);
687
688 #ifdef CONFIG_ADDR_MAP
689 init_addr_map();
690 #endif
691
692 #if defined(CONFIG_BOARD_EARLY_INIT_R)
693 board_early_init_r ();
694 #endif
695
696 monitor_flash_len = (ulong)&__init_end - dest_addr;
697
698 /*
699 * We have to relocate the command table manually
700 */
701 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
702 ulong addr;
703 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
704 #if 0
705 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
706 cmdtp->name, (ulong) (cmdtp->cmd), addr);
707 #endif
708 cmdtp->cmd =
709 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
710
711 addr = (ulong)(cmdtp->name) + gd->reloc_off;
712 cmdtp->name = (char *)addr;
713
714 if (cmdtp->usage) {
715 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
716 cmdtp->usage = (char *)addr;
717 }
718 #ifdef CONFIG_SYS_LONGHELP
719 if (cmdtp->help) {
720 addr = (ulong)(cmdtp->help) + gd->reloc_off;
721 cmdtp->help = (char *)addr;
722 }
723 #endif
724 }
725 /* there are some other pointer constants we must deal with */
726 #ifndef CONFIG_ENV_IS_NOWHERE
727 env_name_spec += gd->reloc_off;
728 #endif
729
730 WATCHDOG_RESET ();
731
732 #ifdef CONFIG_LOGBUFFER
733 logbuff_init_ptrs ();
734 #endif
735 #ifdef CONFIG_POST
736 post_output_backlog ();
737 post_reloc ();
738 #endif
739
740 WATCHDOG_RESET();
741
742 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || \
743 defined (CONFIG_FLAGADM) || defined(CONFIG_MPC83XX)
744 icache_enable (); /* it's time to enable the instruction cache */
745 #endif
746
747 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
748 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
749 #endif
750
751 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
752 /*
753 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
754 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
755 * bridge there.
756 */
757 pci_init ();
758 #endif
759 #if defined(CONFIG_BAB7xx)
760 /*
761 * Initialise the ISA bridge
762 */
763 initialise_w83c553f ();
764 #endif
765
766 asm ("sync ; isync");
767
768 #if !defined(CONFIG_SYS_NO_FLASH)
769 puts ("FLASH: ");
770
771 if ((flash_size = flash_init ()) > 0) {
772 # ifdef CONFIG_SYS_FLASH_CHECKSUM
773 print_size (flash_size, "");
774 /*
775 * Compute and print flash CRC if flashchecksum is set to 'y'
776 *
777 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
778 */
779 s = getenv ("flashchecksum");
780 if (s && (*s == 'y')) {
781 printf (" CRC: %08X",
782 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
783 );
784 }
785 putc ('\n');
786 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
787 print_size (flash_size, "\n");
788 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
789 } else {
790 puts (failed);
791 hang ();
792 }
793
794 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
795 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
796
797 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
798 /* Make a update of the Memctrl. */
799 update_flash_size (flash_size);
800 #endif
801
802
803 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
804 /* flash mapped at end of memory map */
805 bd->bi_flashoffset = TEXT_BASE + flash_size;
806 # elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
807 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
808 # else
809 bd->bi_flashoffset = 0;
810 # endif
811 #else /* CONFIG_SYS_NO_FLASH */
812
813 bd->bi_flashsize = 0;
814 bd->bi_flashstart = 0;
815 bd->bi_flashoffset = 0;
816 #endif /* !CONFIG_SYS_NO_FLASH */
817
818 WATCHDOG_RESET ();
819
820 /* initialize higher level parts of CPU like time base and timers */
821 cpu_init_r ();
822
823 WATCHDOG_RESET ();
824
825 /* initialize malloc() area */
826 mem_malloc_init ();
827 malloc_bin_reloc ();
828
829 #ifdef CONFIG_SPI
830 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
831 spi_init_f ();
832 # endif
833 spi_init_r ();
834 #endif
835
836 #if defined(CONFIG_CMD_NAND)
837 WATCHDOG_RESET ();
838 puts ("NAND: ");
839 nand_init(); /* go init the NAND */
840 #endif
841
842 /* relocate environment function pointers etc. */
843 env_relocate ();
844
845 /*
846 * Fill in missing fields of bd_info.
847 * We do this here, where we have "normal" access to the
848 * environment; we used to do this still running from ROM,
849 * where had to use getenv_r(), which can be pretty slow when
850 * the environment is in EEPROM.
851 */
852
853 #if defined(CONFIG_SYS_EXTBDINFO)
854 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
855 #if defined(CONFIG_I2CFAST)
856 /*
857 * set bi_iic_fast for linux taking environment variable
858 * "i2cfast" into account
859 */
860 {
861 char *s = getenv ("i2cfast");
862 if (s && ((*s == 'y') || (*s == 'Y'))) {
863 bd->bi_iic_fast[0] = 1;
864 bd->bi_iic_fast[1] = 1;
865 } else {
866 bd->bi_iic_fast[0] = 0;
867 bd->bi_iic_fast[1] = 0;
868 }
869 }
870 #else
871 bd->bi_iic_fast[0] = 0;
872 bd->bi_iic_fast[1] = 0;
873 #endif /* CONFIG_I2CFAST */
874 #endif /* CONFIG_405GP, CONFIG_405EP */
875 #endif /* CONFIG_SYS_EXTBDINFO */
876
877 #if defined(CONFIG_SC3)
878 sc3_read_eeprom();
879 #endif
880
881 #if defined (CONFIG_ID_EEPROM) || defined (CONFIG_SYS_I2C_MAC_OFFSET)
882 mac_read_from_eeprom();
883 #endif
884
885 s = getenv ("ethaddr");
886 #if defined (CONFIG_MBX) || \
887 defined (CONFIG_RPXCLASSIC) || \
888 defined(CONFIG_IAD210) || \
889 defined(CONFIG_V38B)
890 if (s == NULL)
891 board_get_enetaddr (bd->bi_enetaddr);
892 else
893 #endif
894 for (i = 0; i < 6; ++i) {
895 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
896 if (s)
897 s = (*e) ? e + 1 : e;
898 }
899 #ifdef CONFIG_HERMES
900 if ((gd->board_type >> 16) == 2)
901 bd->bi_ethspeed = gd->board_type & 0xFFFF;
902 else
903 bd->bi_ethspeed = 0xFFFF;
904 #endif
905
906 #ifdef CONFIG_NX823
907 load_sernum_ethaddr ();
908 #endif
909
910 #ifdef CONFIG_HAS_ETH1
911 /* handle the 2nd ethernet address */
912
913 s = getenv ("eth1addr");
914
915 for (i = 0; i < 6; ++i) {
916 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
917 if (s)
918 s = (*e) ? e + 1 : e;
919 }
920 #endif
921 #ifdef CONFIG_HAS_ETH2
922 /* handle the 3rd ethernet address */
923
924 s = getenv ("eth2addr");
925 #if defined(CONFIG_XPEDITE1K) || defined(CONFIG_METROBOX) || defined(CONFIG_KAREF)
926 if (s == NULL)
927 board_get_enetaddr(bd->bi_enet2addr);
928 else
929 #endif
930 for (i = 0; i < 6; ++i) {
931 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
932 if (s)
933 s = (*e) ? e + 1 : e;
934 }
935 #endif
936
937 #ifdef CONFIG_HAS_ETH3
938 /* handle 4th ethernet address */
939 s = getenv("eth3addr");
940 #if defined(CONFIG_XPEDITE1K) || defined(CONFIG_METROBOX) || defined(CONFIG_KAREF)
941 if (s == NULL)
942 board_get_enetaddr(bd->bi_enet3addr);
943 else
944 #endif
945 for (i = 0; i < 6; ++i) {
946 bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
947 if (s)
948 s = (*e) ? e + 1 : e;
949 }
950 #endif
951
952 #ifdef CONFIG_HAS_ETH4
953 /* handle 5th ethernet address */
954 s = getenv("eth4addr");
955 #if defined(CONFIG_XPEDITE1K) || defined(CONFIG_METROBOX) || defined(CONFIG_KAREF)
956 if (s == NULL)
957 board_get_enetaddr(bd->bi_enet4addr);
958 else
959 #endif
960 for (i = 0; i < 6; ++i) {
961 bd->bi_enet4addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
962 if (s)
963 s = (*e) ? e + 1 : e;
964 }
965 #endif
966
967 #ifdef CONFIG_HAS_ETH5
968 /* handle 6th ethernet address */
969 s = getenv("eth5addr");
970 #if defined(CONFIG_XPEDITE1K) || defined(CONFIG_METROBOX) || defined(CONFIG_KAREF)
971 if (s == NULL)
972 board_get_enetaddr(bd->bi_enet5addr);
973 else
974 #endif
975 for (i = 0; i < 6; ++i) {
976 bd->bi_enet5addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
977 if (s)
978 s = (*e) ? e + 1 : e;
979 }
980 #endif
981
982 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
983 defined(CONFIG_TQM8272) || \
984 defined(CONFIG_CCM) || defined(CONFIG_KUP4K) || \
985 defined(CONFIG_KUP4X) || defined(CONFIG_PCS440EP)
986 load_sernum_ethaddr ();
987 #endif
988 /* IP Address */
989 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
990
991 WATCHDOG_RESET ();
992
993 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45)
994 /*
995 * Do pci configuration
996 */
997 pci_init ();
998 #endif
999
1000 /** leave this here (after malloc(), environment and PCI are working) **/
1001 /* Initialize devices */
1002 devices_init ();
1003
1004 /* Initialize the jump table for applications */
1005 jumptable_init ();
1006
1007 #if defined(CONFIG_API)
1008 /* Initialize API */
1009 api_init ();
1010 #endif
1011
1012 /* Initialize the console (after the relocation and devices init) */
1013 console_init_r ();
1014
1015 #if defined(CONFIG_CCM) || \
1016 defined(CONFIG_COGENT) || \
1017 defined(CONFIG_CPCI405) || \
1018 defined(CONFIG_EVB64260) || \
1019 defined(CONFIG_KUP4K) || \
1020 defined(CONFIG_KUP4X) || \
1021 defined(CONFIG_LWMON) || \
1022 defined(CONFIG_PCU_E) || \
1023 defined(CONFIG_SC3) || \
1024 defined(CONFIG_W7O) || \
1025 defined(CONFIG_MISC_INIT_R)
1026 /* miscellaneous platform dependent initialisations */
1027 misc_init_r ();
1028 #endif
1029
1030 #ifdef CONFIG_HERMES
1031 if (bd->bi_ethspeed != 0xFFFF)
1032 hermes_start_lxt980 ((int) bd->bi_ethspeed);
1033 #endif
1034
1035 #if defined(CONFIG_CMD_KGDB)
1036 WATCHDOG_RESET ();
1037 puts ("KGDB: ");
1038 kgdb_init ();
1039 #endif
1040
1041 debug ("U-Boot relocated to %08lx\n", dest_addr);
1042
1043 /*
1044 * Enable Interrupts
1045 */
1046 interrupt_init ();
1047
1048 /* Must happen after interrupts are initialized since
1049 * an irq handler gets installed
1050 */
1051 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
1052 serial_buffered_init();
1053 #endif
1054
1055 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
1056 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
1057 #endif
1058
1059 udelay (20);
1060
1061 set_timer (0);
1062
1063 /* Initialize from environment */
1064 if ((s = getenv ("loadaddr")) != NULL) {
1065 load_addr = simple_strtoul (s, NULL, 16);
1066 }
1067 #if defined(CONFIG_CMD_NET)
1068 if ((s = getenv ("bootfile")) != NULL) {
1069 copy_filename (BootFile, s, sizeof (BootFile));
1070 }
1071 #endif
1072
1073 WATCHDOG_RESET ();
1074
1075 #if defined(CONFIG_CMD_SCSI)
1076 WATCHDOG_RESET ();
1077 puts ("SCSI: ");
1078 scsi_init ();
1079 #endif
1080
1081 #ifdef CONFIG_GENERIC_MMC
1082 WATCHDOG_RESET ();
1083 puts ("MMC: ");
1084 mmc_initialize (bd);
1085 #endif
1086
1087 #if defined(CONFIG_CMD_DOC)
1088 WATCHDOG_RESET ();
1089 puts ("DOC: ");
1090 doc_init ();
1091 #endif
1092
1093 #if defined(CONFIG_CMD_NET)
1094 #if defined(CONFIG_NET_MULTI)
1095 WATCHDOG_RESET ();
1096 puts ("Net: ");
1097 #endif
1098 eth_initialize (bd);
1099 #endif
1100
1101 #if defined(CONFIG_CMD_NET) && ( \
1102 defined(CONFIG_CCM) || \
1103 defined(CONFIG_ELPT860) || \
1104 defined(CONFIG_EP8260) || \
1105 defined(CONFIG_IP860) || \
1106 defined(CONFIG_IVML24) || \
1107 defined(CONFIG_IVMS8) || \
1108 defined(CONFIG_MPC8260ADS) || \
1109 defined(CONFIG_MPC8266ADS) || \
1110 defined(CONFIG_MPC8560ADS) || \
1111 defined(CONFIG_PCU_E) || \
1112 defined(CONFIG_RPXSUPER) || \
1113 defined(CONFIG_STXGP3) || \
1114 defined(CONFIG_SPD823TS) || \
1115 defined(CONFIG_RESET_PHY_R) )
1116
1117 WATCHDOG_RESET ();
1118 debug ("Reset Ethernet PHY\n");
1119 reset_phy ();
1120 #endif
1121
1122 #ifdef CONFIG_POST
1123 post_run (NULL, POST_RAM | post_bootmode_get(0));
1124 #endif
1125
1126 #if defined(CONFIG_CMD_PCMCIA) \
1127 && !defined(CONFIG_CMD_IDE)
1128 WATCHDOG_RESET ();
1129 puts ("PCMCIA:");
1130 pcmcia_init ();
1131 #endif
1132
1133 #if defined(CONFIG_CMD_IDE)
1134 WATCHDOG_RESET ();
1135 # ifdef CONFIG_IDE_8xx_PCCARD
1136 puts ("PCMCIA:");
1137 # else
1138 puts ("IDE: ");
1139 #endif
1140 #if defined(CONFIG_START_IDE)
1141 if (board_start_ide())
1142 ide_init ();
1143 #else
1144 ide_init ();
1145 #endif
1146 #endif
1147
1148 #ifdef CONFIG_LAST_STAGE_INIT
1149 WATCHDOG_RESET ();
1150 /*
1151 * Some parts can be only initialized if all others (like
1152 * Interrupts) are up and running (i.e. the PC-style ISA
1153 * keyboard).
1154 */
1155 last_stage_init ();
1156 #endif
1157
1158 #if defined(CONFIG_CMD_BEDBUG)
1159 WATCHDOG_RESET ();
1160 bedbug_init ();
1161 #endif
1162
1163 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
1164 /*
1165 * Export available size of memory for Linux,
1166 * taking into account the protected RAM at top of memory
1167 */
1168 {
1169 ulong pram;
1170 uchar memsz[32];
1171 #ifdef CONFIG_PRAM
1172 char *s;
1173
1174 if ((s = getenv ("pram")) != NULL) {
1175 pram = simple_strtoul (s, NULL, 10);
1176 } else {
1177 pram = CONFIG_PRAM;
1178 }
1179 #else
1180 pram=0;
1181 #endif
1182 #ifdef CONFIG_LOGBUFFER
1183 #ifndef CONFIG_ALT_LB_ADDR
1184 /* Also take the logbuffer into account (pram is in kB) */
1185 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1186 #endif
1187 #endif
1188 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1189 setenv ("mem", (char *)memsz);
1190 }
1191 #endif
1192
1193 #ifdef CONFIG_PS2KBD
1194 puts ("PS/2: ");
1195 kbd_init();
1196 #endif
1197
1198 #ifdef CONFIG_MODEM_SUPPORT
1199 {
1200 extern int do_mdm_init;
1201 do_mdm_init = gd->do_mdm_init;
1202 }
1203 #endif
1204
1205 /* Initialization complete - start the monitor */
1206
1207 /* main_loop() can return to retry autoboot, if so just run it again. */
1208 for (;;) {
1209 WATCHDOG_RESET ();
1210 main_loop ();
1211 }
1212
1213 /* NOTREACHED - no way out of command loop except booting */
1214 }
1215
1216 void hang (void)
1217 {
1218 puts ("### ERROR ### Please RESET the board ###\n");
1219 show_boot_progress(-30);
1220 for (;;);
1221 }
1222
1223 #ifdef CONFIG_MODEM_SUPPORT
1224 /* called from main loop (common/main.c) */
1225 /* 'inline' - We have to do it fast */
1226 static inline void mdm_readline(char *buf, int bufsiz)
1227 {
1228 char c;
1229 char *p;
1230 int n;
1231
1232 n = 0;
1233 p = buf;
1234 for(;;) {
1235 c = serial_getc();
1236
1237 /* dbg("(%c)", c); */
1238
1239 switch(c) {
1240 case '\r':
1241 break;
1242 case '\n':
1243 *p = '\0';
1244 return;
1245
1246 default:
1247 if(n++ > bufsiz) {
1248 *p = '\0';
1249 return; /* sanity check */
1250 }
1251 *p = c;
1252 p++;
1253 break;
1254 }
1255 }
1256 }
1257
1258 extern void dbg(const char *fmt, ...);
1259 int mdm_init (void)
1260 {
1261 char env_str[16];
1262 char *init_str;
1263 int i;
1264 extern char console_buffer[];
1265 extern void enable_putc(void);
1266 extern int hwflow_onoff(int);
1267
1268 enable_putc(); /* enable serial_putc() */
1269
1270 #ifdef CONFIG_HWFLOW
1271 init_str = getenv("mdm_flow_control");
1272 if (init_str && (strcmp(init_str, "rts/cts") == 0))
1273 hwflow_onoff (1);
1274 else
1275 hwflow_onoff(-1);
1276 #endif
1277
1278 for (i = 1;;i++) {
1279 sprintf(env_str, "mdm_init%d", i);
1280 if ((init_str = getenv(env_str)) != NULL) {
1281 serial_puts(init_str);
1282 serial_puts("\n");
1283 for(;;) {
1284 mdm_readline(console_buffer, CONFIG_SYS_CBSIZE);
1285 dbg("ini%d: [%s]", i, console_buffer);
1286
1287 if ((strcmp(console_buffer, "OK") == 0) ||
1288 (strcmp(console_buffer, "ERROR") == 0)) {
1289 dbg("ini%d: cmd done", i);
1290 break;
1291 } else /* in case we are originating call ... */
1292 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1293 dbg("ini%d: connect", i);
1294 return 0;
1295 }
1296 }
1297 } else
1298 break; /* no init string - stop modem init */
1299
1300 udelay(100000);
1301 }
1302
1303 udelay(100000);
1304
1305 /* final stage - wait for connect */
1306 for(;i > 1;) { /* if 'i' > 1 - wait for connection
1307 message from modem */
1308 mdm_readline(console_buffer, CONFIG_SYS_CBSIZE);
1309 dbg("ini_f: [%s]", console_buffer);
1310 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1311 dbg("ini_f: connected");
1312 return 0;
1313 }
1314 }
1315
1316 return 0;
1317 }
1318
1319 #endif
1320
1321 #if 0 /* We could use plain global data, but the resulting code is bigger */
1322 /*
1323 * Pointer to initial global data area
1324 *
1325 * Here we initialize it.
1326 */
1327 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1328 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1329 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
1330 #endif /* 0 */
1331
1332 /************************************************************************/
"Das U-Boot" Source Tree