1 /*
2 * (C) Copyright 2000-2010
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 <stdio_dev.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_MP
83 #include <asm/mp.h>
84 #endif
85
86 #ifdef CONFIG_BITBANGMII
87 #include <miiphy.h>
88 #endif
89
90 #ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
91 extern int update_flash_size (int flash_size);
92 #endif
93
94 #if defined(CONFIG_SC3)
95 extern void sc3_read_eeprom(void);
96 #endif
97
98 #if defined(CONFIG_CMD_DOC)
99 void doc_init (void);
100 #endif
101 #if defined(CONFIG_HARD_I2C) || \
102 defined(CONFIG_SOFT_I2C)
103 #include <i2c.h>
104 #endif
105 #include <spi.h>
106 #include <nand.h>
107
108 #ifdef CONFIG_SAM460EX
109 #include <asm/io.h>
110 #endif
111
112 static char *failed = "*** failed ***\n";
113
114 #if defined(CONFIG_OXC) || defined(CONFIG_PCU_E) || defined(CONFIG_RMU)
115 extern flash_info_t flash_info[];
116 #endif
117
118 #if defined(CONFIG_START_IDE)
119 extern int board_start_ide(void);
120 #endif
121 #include <environment.h>
122
123 DECLARE_GLOBAL_DATA_PTR;
124
125 #if defined(CONFIG_ENV_IS_EMBEDDED)
126 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
127 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
128 (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
129 defined(CONFIG_ENV_IS_IN_NVRAM)
130 #define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
131 #else
132 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
133 #endif
134
135 #if !defined(CONFIG_SYS_MEM_TOP_HIDE)
136 #define CONFIG_SYS_MEM_TOP_HIDE 0
137 #endif
138
139 extern ulong __init_end;
140 extern ulong _end;
141 ulong monitor_flash_len;
142
143 #if defined(CONFIG_CMD_BEDBUG)
144 #include <bedbug/type.h>
145 #endif
146
147 /************************************************************************
148 * Utilities *
149 ************************************************************************
150 */
151
152 /*
153 * All attempts to come up with a "common" initialization sequence
154 * that works for all boards and architectures failed: some of the
155 * requirements are just _too_ different. To get rid of the resulting
156 * mess of board dependend #ifdef'ed code we now make the whole
157 * initialization sequence configurable to the user.
158 *
159 * The requirements for any new initalization function is simple: it
160 * receives a pointer to the "global data" structure as it's only
161 * argument, and returns an integer return code, where 0 means
162 * "continue" and != 0 means "fatal error, hang the system".
163 */
164 typedef int (init_fnc_t) (void);
165
166 /************************************************************************
167 * Init Utilities *
168 ************************************************************************
169 * Some of this code should be moved into the core functions,
170 * but let's get it working (again) first...
171 */
172
init_baudrate(void)173 static int init_baudrate (void)
174 {
175 char tmp[64]; /* long enough for environment variables */
176 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
177
178 gd->baudrate = (i > 0)
179 ? (int) simple_strtoul (tmp, NULL, 10)
180 : CONFIG_BAUDRATE;
181 return (0);
182 }
183
184 /***********************************************************************/
185
__board_add_ram_info(int use_default)186 void __board_add_ram_info(int use_default)
187 {
188 /* please define platform specific board_add_ram_info() */
189 }
190 void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info")));
191
192
init_func_ram(void)193 static int init_func_ram (void)
194 {
195 #ifdef CONFIG_BOARD_TYPES
196 int board_type = gd->board_type;
197 #else
198 int board_type = 0; /* use dummy arg */
199 #endif
200 puts ("DRAM: ");
201
202 #ifdef CONFIG_SAM460EX
203 initdram (board_type);
204 #endif
205
206 if ((gd->ram_size = initdram (board_type)) > 0) {
207 print_size (gd->ram_size, "");
208 board_add_ram_info(0);
209 putc('\n');
210 return (0);
211 }
212 puts (failed);
213 return (1);
214 }
215
216 /***********************************************************************/
217
218 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
init_func_i2c(void)219 static int init_func_i2c (void)
220 {
221 puts ("I2C: ");
222 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
223 puts ("ready\n");
224 return (0);
225 }
226 #endif
227
228 #if defined(CONFIG_HARD_SPI)
init_func_spi(void)229 static int init_func_spi (void)
230 {
231 puts ("SPI: ");
232 spi_init ();
233 puts ("ready\n");
234 return (0);
235 }
236 #endif
237
238 /***********************************************************************/
239
240 #if defined(CONFIG_WATCHDOG)
init_func_watchdog_init(void)241 static int init_func_watchdog_init (void)
242 {
243 puts (" Watchdog enabled\n");
244 WATCHDOG_RESET ();
245 return (0);
246 }
247 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
248
init_func_watchdog_reset(void)249 static int init_func_watchdog_reset (void)
250 {
251 WATCHDOG_RESET ();
252 return (0);
253 }
254 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
255 #else
256 # define INIT_FUNC_WATCHDOG_INIT /* undef */
257 # define INIT_FUNC_WATCHDOG_RESET /* undef */
258 #endif /* CONFIG_WATCHDOG */
259
260 /************************************************************************
261 * Initialization sequence *
262 ************************************************************************
263 */
264
265 init_fnc_t *init_sequence[] = {
266 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
267 probecpu,
268 #endif
269 #if defined(CONFIG_BOARD_EARLY_INIT_F)
270 board_early_init_f,
271 #endif
272 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
273 get_clocks, /* get CPU and bus clocks (etc.) */
274 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
275 && !defined(CONFIG_TQM885D)
276 adjust_sdram_tbs_8xx,
277 #endif
278 init_timebase,
279 #endif
280 #ifdef CONFIG_SYS_ALLOC_DPRAM
281 #if !defined(CONFIG_CPM2)
282 dpram_init,
283 #endif
284 #endif
285 #if defined(CONFIG_BOARD_POSTCLK_INIT)
286 board_postclk_init,
287 #endif
288 env_init,
289 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
290 get_clocks_866, /* get CPU and bus clocks according to the environment variable */
291 sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
292 init_timebase,
293 #endif
294 init_baudrate,
295 serial_init,
296 console_init_f,
297 display_options,
298 #if defined(CONFIG_8260)
299 prt_8260_rsr,
300 prt_8260_clks,
301 #endif /* CONFIG_8260 */
302 #if defined(CONFIG_MPC83xx)
303 prt_83xx_rsr,
304 #endif
305 checkcpu,
306 #if defined(CONFIG_MPC5xxx)
307 prt_mpc5xxx_clks,
308 #endif /* CONFIG_MPC5xxx */
309 #if defined(CONFIG_MPC8220)
310 prt_mpc8220_clks,
311 #endif
312 checkboard,
313 INIT_FUNC_WATCHDOG_INIT
314 #if defined(CONFIG_MISC_INIT_F)
315 misc_init_f,
316 #endif
317 INIT_FUNC_WATCHDOG_RESET
318 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
319 init_func_i2c,
320 #endif
321 #if defined(CONFIG_HARD_SPI)
322 init_func_spi,
323 #endif
324 #ifdef CONFIG_POST
325 post_init_f,
326 #endif
327 INIT_FUNC_WATCHDOG_RESET
328 init_func_ram,
329 #if defined(CONFIG_SYS_DRAM_TEST)
330 testdram,
331 #endif /* CONFIG_SYS_DRAM_TEST */
332 INIT_FUNC_WATCHDOG_RESET
333
334 NULL, /* Terminate this list */
335 };
336
get_effective_memsize(void)337 ulong get_effective_memsize(void)
338 {
339 #ifndef CONFIG_VERY_BIG_RAM
340 return gd->ram_size;
341 #else
342 /* limit stack to what we can reasonable map */
343 return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
344 CONFIG_MAX_MEM_MAPPED : gd->ram_size);
345 #endif
346 }
347
348 /************************************************************************
349 *
350 * This is the first part of the initialization sequence that is
351 * implemented in C, but still running from ROM.
352 *
353 * The main purpose is to provide a (serial) console interface as
354 * soon as possible (so we can see any error messages), and to
355 * initialize the RAM so that we can relocate the monitor code to
356 * RAM.
357 *
358 * Be aware of the restrictions: global data is read-only, BSS is not
359 * initialized, and stack space is limited to a few kB.
360 *
361 ************************************************************************
362 */
363
364 #ifdef CONFIG_LOGBUFFER
logbuffer_base(void)365 unsigned long logbuffer_base(void)
366 {
367 return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
368 }
369 #endif
370
board_init_f(ulong bootflag)371 void board_init_f (ulong bootflag)
372 {
373 bd_t *bd;
374 ulong len, addr, addr_sp;
375 ulong *s;
376 gd_t *id;
377 init_fnc_t **init_fnc_ptr;
378 #ifdef CONFIG_PRAM
379 int i;
380 ulong reg;
381 uchar tmp[64]; /* long enough for environment variables */
382 #endif
383
384 /* Pointer is writable since we allocated a register for it */
385 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
386 /* compiler optimization barrier needed for GCC >= 3.4 */
387 __asm__ __volatile__("": : :"memory");
388
389 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \
390 !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \
391 !defined(CONFIG_MPC86xx)
392 /* Clear initial global data */
393 memset ((void *) gd, 0, sizeof (gd_t));
394 #endif
395
396 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
397 if ((*init_fnc_ptr) () != 0) {
398 hang ();
399 }
400 }
401
402 /*
403 * Now that we have DRAM mapped and working, we can
404 * relocate the code and continue running from DRAM.
405 *
406 * Reserve memory at end of RAM for (top down in that order):
407 * - area that won't get touched by U-Boot and Linux (optional)
408 * - kernel log buffer
409 * - protected RAM
410 * - LCD framebuffer
411 * - monitor code
412 * - board info struct
413 */
414 len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
415
416 /*
417 * Subtract specified amount of memory to hide so that it won't
418 * get "touched" at all by U-Boot. By fixing up gd->ram_size
419 * the Linux kernel should now get passed the now "corrected"
420 * memory size and won't touch it either. This should work
421 * for arch/ppc and arch/powerpc. Only Linux board ports in
422 * arch/powerpc with bootwrapper support, that recalculate the
423 * memory size from the SDRAM controller setup will have to
424 * get fixed.
425 */
426 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
427
428 addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
429
430 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
431 /*
432 * We need to make sure the location we intend to put secondary core
433 * boot code is reserved and not used by any part of u-boot
434 */
435 if (addr > determine_mp_bootpg()) {
436 addr = determine_mp_bootpg();
437 debug ("Reserving MP boot page to %08lx\n", addr);
438 }
439 #endif
440
441 #ifdef CONFIG_LOGBUFFER
442 #ifndef CONFIG_ALT_LB_ADDR
443 /* reserve kernel log buffer */
444 addr -= (LOGBUFF_RESERVE);
445 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
446 #endif
447 #endif
448
449 #ifdef CONFIG_PRAM
450 /*
451 * reserve protected RAM
452 */
453 i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
454 reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
455 addr -= (reg << 10); /* size is in kB */
456 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
457 #endif /* CONFIG_PRAM */
458
459 /* round down to next 4 kB limit */
460 addr &= ~(4096 - 1);
461 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
462
463 #ifdef CONFIG_LCD
464 /* reserve memory for LCD display (always full pages) */
465 addr = lcd_setmem (addr);
466 gd->fb_base = addr;
467 #endif /* CONFIG_LCD */
468
469 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
470 /* reserve memory for video display (always full pages) */
471 addr = video_setmem (addr);
472 gd->fb_base = addr;
473 #endif /* CONFIG_VIDEO */
474
475 /*
476 * reserve memory for U-Boot code, data & bss
477 * round down to next 4 kB limit
478 */
479 addr -= len;
480 addr &= ~(4096 - 1);
481 #ifdef CONFIG_E500
482 /* round down to next 64 kB limit so that IVPR stays aligned */
483 addr &= ~(65536 - 1);
484 #endif
485
486 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
487
488 /*
489 * reserve memory for malloc() arena
490 */
491 addr_sp = addr - TOTAL_MALLOC_LEN;
492 debug ("Reserving %dk for malloc() at: %08lx\n",
493 TOTAL_MALLOC_LEN >> 10, addr_sp);
494
495 /*
496 * (permanently) allocate a Board Info struct
497 * and a permanent copy of the "global" data
498 */
499 addr_sp -= sizeof (bd_t);
500 bd = (bd_t *) addr_sp;
501 gd->bd = bd;
502 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
503 sizeof (bd_t), addr_sp);
504 addr_sp -= sizeof (gd_t);
505 id = (gd_t *) addr_sp;
506 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
507 sizeof (gd_t), addr_sp);
508
509 /*
510 * Finally, we set up a new (bigger) stack.
511 *
512 * Leave some safety gap for SP, force alignment on 16 byte boundary
513 * Clear initial stack frame
514 */
515 addr_sp -= 16;
516 addr_sp &= ~0xF;
517 s = (ulong *)addr_sp;
518 *s-- = 0;
519 *s-- = 0;
520 addr_sp = (ulong)s;
521 debug ("Stack Pointer at: %08lx\n", addr_sp);
522
523 /*
524 * Save local variables to board info struct
525 */
526
527 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
528 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
529
530 #ifdef CONFIG_IP860
531 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
532 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
533 #elif defined CONFIG_MPC8220
534 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM memory */
535 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM memory */
536 #else
537 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
538 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
539 #endif
540
541 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
542 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
543 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
544 #endif
545 #if defined(CONFIG_MPC5xxx)
546 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
547 #endif
548 #if defined(CONFIG_MPC83xx)
549 bd->bi_immrbar = CONFIG_SYS_IMMR;
550 #endif
551 #if defined(CONFIG_MPC8220)
552 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
553 bd->bi_inpfreq = gd->inp_clk;
554 bd->bi_pcifreq = gd->pci_clk;
555 bd->bi_vcofreq = gd->vco_clk;
556 bd->bi_pevfreq = gd->pev_clk;
557 bd->bi_flbfreq = gd->flb_clk;
558
559 /* store bootparam to sram (backward compatible), here? */
560 {
561 u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE;
562 *sram++ = gd->ram_size;
563 *sram++ = gd->bus_clk;
564 *sram++ = gd->inp_clk;
565 *sram++ = gd->cpu_clk;
566 *sram++ = gd->vco_clk;
567 *sram++ = gd->flb_clk;
568 *sram++ = 0xb8c3ba11; /* boot signature */
569 }
570 #endif
571
572 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
573
574 WATCHDOG_RESET ();
575 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
576 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
577 #if defined(CONFIG_CPM2)
578 bd->bi_cpmfreq = gd->cpm_clk;
579 bd->bi_brgfreq = gd->brg_clk;
580 bd->bi_sccfreq = gd->scc_clk;
581 bd->bi_vco = gd->vco_out;
582 #endif /* CONFIG_CPM2 */
583 #if defined(CONFIG_MPC512X)
584 bd->bi_ipsfreq = gd->ips_clk;
585 #endif /* CONFIG_MPC512X */
586 #if defined(CONFIG_MPC5xxx)
587 bd->bi_ipbfreq = gd->ipb_clk;
588 bd->bi_pcifreq = gd->pci_clk;
589 #endif /* CONFIG_MPC5xxx */
590 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
591
592 #ifdef CONFIG_SYS_EXTBDINFO
593 strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
594 strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
595
596 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
597 bd->bi_plb_busfreq = gd->bus_clk;
598 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
599 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
600 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
601 bd->bi_pci_busfreq = get_PCI_freq ();
602 bd->bi_opbfreq = get_OPB_freq ();
603 #elif defined(CONFIG_XILINX_405)
604 bd->bi_pci_busfreq = get_PCI_freq ();
605 #endif
606 #endif
607
608 debug ("New Stack Pointer is: %08lx\n", addr_sp);
609
610 WATCHDOG_RESET ();
611
612 #ifdef CONFIG_POST
613 post_bootmode_init();
614 post_run (NULL, POST_ROM | post_bootmode_get(0));
615 #endif
616
617 WATCHDOG_RESET();
618
619 gd->relocaddr = addr; /* Record relocation address, useful for debug */
620
621 memcpy (id, (void *)gd, sizeof (gd_t));
622
623 relocate_code (addr_sp, id, addr);
624
625 /* NOTREACHED - relocate_code() does not return */
626 }
627
628 /************************************************************************
629 *
630 * This is the next part if the initialization sequence: we are now
631 * running from RAM and have a "normal" C environment, i. e. global
632 * data can be written, BSS has been cleared, the stack size in not
633 * that critical any more, etc.
634 *
635 ************************************************************************
636 */
board_init_r(gd_t * id,ulong dest_addr)637 void board_init_r (gd_t *id, ulong dest_addr)
638 {
639 char *s;
640 bd_t *bd;
641 ulong malloc_start;
642
643 #ifndef CONFIG_SYS_NO_FLASH
644 ulong flash_size;
645 #endif
646
647 gd = id; /* initialize RAM version of global data */
648 bd = gd->bd;
649
650 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
651
652 /* The Malloc area is immediately below the monitor copy in DRAM */
653 malloc_start = dest_addr - TOTAL_MALLOC_LEN;
654
655 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
656 /*
657 * The gd->cpu pointer is set to an address in flash before relocation.
658 * We need to update it to point to the same CPU entry in RAM.
659 */
660 gd->cpu += dest_addr - CONFIG_SYS_MONITOR_BASE;
661 #endif
662
663 #ifdef CONFIG_SERIAL_MULTI
664 serial_initialize();
665 #endif
666
667 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
668
669 WATCHDOG_RESET ();
670
671 /*
672 * Setup trap handlers
673 */
674 trap_init (dest_addr);
675
676 #ifdef CONFIG_ADDR_MAP
677 init_addr_map();
678 #endif
679
680 #if defined(CONFIG_BOARD_EARLY_INIT_R)
681 board_early_init_r ();
682 #endif
683
684 monitor_flash_len = (ulong)&__init_end - dest_addr;
685
686 WATCHDOG_RESET ();
687
688 #ifdef CONFIG_LOGBUFFER
689 logbuff_init_ptrs ();
690 #endif
691 #ifdef CONFIG_POST
692 post_output_backlog ();
693 #endif
694
695 WATCHDOG_RESET();
696
697 #if defined(CONFIG_SYS_DELAYED_ICACHE)
698 icache_enable (); /* it's time to enable the instruction cache */
699 #endif
700
701 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
702 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
703 #endif
704
705 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
706 /*
707 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
708 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
709 * bridge there.
710 */
711 pci_init ();
712 #endif
713 #if defined(CONFIG_BAB7xx)
714 /*
715 * Initialise the ISA bridge
716 */
717 initialise_w83c553f ();
718 #endif
719
720 asm ("sync ; isync");
721
722 mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN);
723
724 #ifdef CONFIG_SAM460EX
725 u16 fpga_val;
726
727 // Green, Yellow, Ambra, Red LEDs ON -------------------------
728 fpga_val = in_be16((void *)CONFIG_SYS_FPGA_BASE + 0x2E);
729 fpga_val |= 0x000f;
730 out_be16((void *)CONFIG_SYS_FPGA_BASE + 0x2E, fpga_val);
731
732 int ii=0;
733 for (ii=0;ii<10;ii++) udelay(10000);
734 #endif
735
736 #if !defined(CONFIG_SYS_NO_FLASH)
737 puts ("FLASH: ");
738
739 if ((flash_size = flash_init ()) > 0) {
740 # ifdef CONFIG_SYS_FLASH_CHECKSUM
741 print_size (flash_size, "");
742 /*
743 * Compute and print flash CRC if flashchecksum is set to 'y'
744 *
745 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
746 */
747 s = getenv ("flashchecksum");
748 if (s && (*s == 'y')) {
749 printf (" CRC: %08X",
750 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
751 );
752 }
753 putc ('\n');
754 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
755 print_size (flash_size, "\n");
756 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
757 } else {
758 puts (failed);
759 hang ();
760 }
761
762 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
763 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
764
765 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
766 /* Make a update of the Memctrl. */
767 update_flash_size (flash_size);
768 #endif
769
770
771 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
772 /* flash mapped at end of memory map */
773 bd->bi_flashoffset = TEXT_BASE + flash_size;
774 # elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
775 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
776 # else
777 bd->bi_flashoffset = 0;
778 # endif
779 #else /* CONFIG_SYS_NO_FLASH */
780
781 bd->bi_flashsize = 0;
782 bd->bi_flashstart = 0;
783 bd->bi_flashoffset = 0;
784 #endif /* !CONFIG_SYS_NO_FLASH */
785
786 WATCHDOG_RESET ();
787
788 /* initialize higher level parts of CPU like time base and timers */
789 cpu_init_r ();
790
791 WATCHDOG_RESET ();
792
793 #ifdef CONFIG_SPI
794 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
795 spi_init_f ();
796 # endif
797 spi_init_r ();
798 #endif
799
800 #if defined(CONFIG_CMD_NAND)
801 WATCHDOG_RESET ();
802 puts ("NAND: ");
803 nand_init(); /* go init the NAND */
804 #endif
805
806 /* relocate environment function pointers etc. */
807 env_relocate ();
808
809 /*
810 * Fill in missing fields of bd_info.
811 * We do this here, where we have "normal" access to the
812 * environment; we used to do this still running from ROM,
813 * where had to use getenv_r(), which can be pretty slow when
814 * the environment is in EEPROM.
815 */
816
817 #if defined(CONFIG_SYS_EXTBDINFO)
818 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
819 #if defined(CONFIG_I2CFAST)
820 /*
821 * set bi_iic_fast for linux taking environment variable
822 * "i2cfast" into account
823 */
824 {
825 char *s = getenv ("i2cfast");
826 if (s && ((*s == 'y') || (*s == 'Y'))) {
827 bd->bi_iic_fast[0] = 1;
828 bd->bi_iic_fast[1] = 1;
829 } else {
830 bd->bi_iic_fast[0] = 0;
831 bd->bi_iic_fast[1] = 0;
832 }
833 }
834 #else
835 bd->bi_iic_fast[0] = 0;
836 bd->bi_iic_fast[1] = 0;
837 #endif /* CONFIG_I2CFAST */
838 #endif /* CONFIG_405GP, CONFIG_405EP */
839 #endif /* CONFIG_SYS_EXTBDINFO */
840
841 #if defined(CONFIG_SC3)
842 sc3_read_eeprom();
843 #endif
844
845 #if defined (CONFIG_ID_EEPROM) || defined (CONFIG_SYS_I2C_MAC_OFFSET)
846 mac_read_from_eeprom();
847 #endif
848
849 #ifdef CONFIG_HERMES
850 if ((gd->board_type >> 16) == 2)
851 bd->bi_ethspeed = gd->board_type & 0xFFFF;
852 else
853 bd->bi_ethspeed = 0xFFFF;
854 #endif
855
856 #ifdef CONFIG_CMD_NET
857 /* kept around for legacy kernels only ... ignore the next section */
858 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
859 #ifdef CONFIG_HAS_ETH1
860 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
861 #endif
862 #ifdef CONFIG_HAS_ETH2
863 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
864 #endif
865 #ifdef CONFIG_HAS_ETH3
866 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
867 #endif
868 #ifdef CONFIG_HAS_ETH4
869 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
870 #endif
871 #ifdef CONFIG_HAS_ETH5
872 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
873 #endif
874 #endif /* CONFIG_CMD_NET */
875
876 /* IP Address */
877 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
878
879 WATCHDOG_RESET ();
880
881 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45)
882 /*
883 * Do pci configuration
884 */
885 pci_init ();
886 #endif
887
888 /** leave this here (after malloc(), environment and PCI are working) **/
889 /* Initialize stdio devices */
890 stdio_init ();
891
892 /* Initialize the jump table for applications */
893 jumptable_init ();
894
895 #if defined(CONFIG_API)
896 /* Initialize API */
897 api_init ();
898 #endif
899
900 /* Initialize the console (after the relocation and devices init) */
901 console_init_r ();
902
903 #if defined(CONFIG_MISC_INIT_R)
904 /* miscellaneous platform dependent initialisations */
905 misc_init_r ();
906 #endif
907
908 #ifdef CONFIG_HERMES
909 if (bd->bi_ethspeed != 0xFFFF)
910 hermes_start_lxt980 ((int) bd->bi_ethspeed);
911 #endif
912
913 #if defined(CONFIG_CMD_KGDB)
914 WATCHDOG_RESET ();
915 puts ("KGDB: ");
916 kgdb_init ();
917 #endif
918
919 debug ("U-Boot relocated to %08lx\n", dest_addr);
920
921 /*
922 * Enable Interrupts
923 */
924 interrupt_init ();
925
926 /* Must happen after interrupts are initialized since
927 * an irq handler gets installed
928 */
929 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
930 serial_buffered_init();
931 #endif
932
933 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
934 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
935 #endif
936
937 udelay (20);
938
939 set_timer (0);
940
941 /* Initialize from environment */
942 if ((s = getenv ("loadaddr")) != NULL) {
943 load_addr = simple_strtoul (s, NULL, 16);
944 }
945 #if defined(CONFIG_CMD_NET)
946 if ((s = getenv ("bootfile")) != NULL) {
947 copy_filename (BootFile, s, sizeof (BootFile));
948 }
949 #endif
950
951 WATCHDOG_RESET ();
952
953 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
954 dtt_init ();
955 #endif
956 #if defined(CONFIG_CMD_SCSI)
957 WATCHDOG_RESET ();
958 puts ("SCSI: ");
959 scsi_init ();
960 #endif
961
962 #ifdef CONFIG_GENERIC_MMC
963 WATCHDOG_RESET ();
964 puts ("MMC: ");
965 mmc_initialize (bd);
966 #endif
967
968 #if defined(CONFIG_CMD_DOC)
969 WATCHDOG_RESET ();
970 puts ("DOC: ");
971 doc_init ();
972 #endif
973
974 #ifdef CONFIG_BITBANGMII
975 bb_miiphy_init();
976 #endif
977 #if defined(CONFIG_CMD_NET)
978 #if defined(CONFIG_NET_MULTI)
979 WATCHDOG_RESET ();
980 puts ("Net: ");
981 #endif
982 eth_initialize (bd);
983 #endif
984
985 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
986 WATCHDOG_RESET ();
987 debug ("Reset Ethernet PHY\n");
988 reset_phy ();
989 #endif
990
991 #ifdef CONFIG_POST
992 post_run (NULL, POST_RAM | post_bootmode_get(0));
993 #endif
994
995 #if defined(CONFIG_CMD_PCMCIA) \
996 && !defined(CONFIG_CMD_IDE)
997 WATCHDOG_RESET ();
998 puts ("PCMCIA:");
999 pcmcia_init ();
1000 #endif
1001
1002 #if defined(CONFIG_CMD_IDE)
1003 WATCHDOG_RESET ();
1004 # ifdef CONFIG_IDE_8xx_PCCARD
1005 puts ("PCMCIA:");
1006 # else
1007 puts ("IDE: ");
1008 #endif
1009 #if defined(CONFIG_START_IDE)
1010 if (board_start_ide())
1011 ide_init ();
1012 #else
1013 ide_init ();
1014 #endif
1015 #endif
1016
1017 #ifdef CONFIG_LAST_STAGE_INIT
1018 WATCHDOG_RESET ();
1019 /*
1020 * Some parts can be only initialized if all others (like
1021 * Interrupts) are up and running (i.e. the PC-style ISA
1022 * keyboard).
1023 */
1024 last_stage_init ();
1025 #endif
1026
1027 #if defined(CONFIG_CMD_BEDBUG)
1028 WATCHDOG_RESET ();
1029 bedbug_init ();
1030 #endif
1031
1032 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
1033 /*
1034 * Export available size of memory for Linux,
1035 * taking into account the protected RAM at top of memory
1036 */
1037 {
1038 ulong pram;
1039 uchar memsz[32];
1040 #ifdef CONFIG_PRAM
1041 char *s;
1042
1043 if ((s = getenv ("pram")) != NULL) {
1044 pram = simple_strtoul (s, NULL, 10);
1045 } else {
1046 pram = CONFIG_PRAM;
1047 }
1048 #else
1049 pram=0;
1050 #endif
1051 #ifdef CONFIG_LOGBUFFER
1052 #ifndef CONFIG_ALT_LB_ADDR
1053 /* Also take the logbuffer into account (pram is in kB) */
1054 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1055 #endif
1056 #endif
1057 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1058 setenv ("mem", (char *)memsz);
1059 }
1060 #endif
1061
1062 #ifdef CONFIG_PS2KBD
1063 puts ("PS/2: ");
1064 kbd_init();
1065 #endif
1066
1067 #ifdef CONFIG_MODEM_SUPPORT
1068 {
1069 extern int do_mdm_init;
1070 do_mdm_init = gd->do_mdm_init;
1071 }
1072 #endif
1073
1074 /* Initialization complete - start the monitor */
1075
1076 /* main_loop() can return to retry autoboot, if so just run it again. */
1077 for (;;) {
1078 WATCHDOG_RESET ();
1079 main_loop ();
1080 }
1081
1082 /* NOTREACHED - no way out of command loop except booting */
1083 }
1084
hang(void)1085 void hang (void)
1086 {
1087 puts ("### ERROR ### Please RESET the board ###\n");
1088 show_boot_progress(-30);
1089 for (;;);
1090 }
1091
1092
1093 #if 0 /* We could use plain global data, but the resulting code is bigger */
1094 /*
1095 * Pointer to initial global data area
1096 *
1097 * Here we initialize it.
1098 */
1099 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1100 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1101 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
1102 #endif /* 0 */
1103
1104 /************************************************************************/
1105