]> git.ipfire.org Git - people/ms/u-boot.git/blob - lib_ppc/board.c
projects / people / ms / u-boot.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'master' of /home/wd/git/u-boot/custodians
[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_SATA)
42 #include <sata.h>
43 #endif
44 #if defined(CONFIG_CMD_SCSI)
45 #include <scsi.h>
46 #endif
47 #if defined(CONFIG_CMD_KGDB)
48 #include <kgdb.h>
49 #endif
50 #ifdef CONFIG_STATUS_LED
51 #include <status_led.h>
52 #endif
53 #include <net.h>
54 #include <serial.h>
55 #ifdef CFG_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(CFG_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 CFG_UPDATE_FLASH_SIZE
79 extern int update_flash_size (int flash_size);
80 #endif
81
82 #if defined(CONFIG_SC3)
83 extern void sc3_read_eeprom(void);
84 #endif
85
86 #if defined(CONFIG_CMD_DOC)
87 void doc_init (void);
88 #endif
89 #if defined(CONFIG_HARD_I2C) || \
90 defined(CONFIG_SOFT_I2C)
91 #include <i2c.h>
92 #endif
93 #if defined(CONFIG_HARD_SPI)
94 #include <spi.h>
95 #endif
96 #if defined(CONFIG_CMD_NAND)
97 void nand_init (void);
98 #endif
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(CFG_ENV_IS_EMBEDDED)
114 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
115 #elif ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
116 (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
117 defined(CFG_ENV_IS_IN_NVRAM)
118 #define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
119 #else
120 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
121 #endif
122
123 #if !defined(CFG_MEM_TOP_HIDE)
124 #define CFG_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 = CFG_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 char *strmhz (char *buf, long hz)
176 {
177 long l, n;
178 long m;
179
180 n = hz / 1000000L;
181 l = sprintf (buf, "%ld", n);
182 m = (hz % 1000000L) / 1000L;
183 if (m != 0)
184 sprintf (buf + l, ".%03ld", m);
185 return (buf);
186 }
187
188 /*
189 * All attempts to come up with a "common" initialization sequence
190 * that works for all boards and architectures failed: some of the
191 * requirements are just _too_ different. To get rid of the resulting
192 * mess of board dependend #ifdef'ed code we now make the whole
193 * initialization sequence configurable to the user.
194 *
195 * The requirements for any new initalization function is simple: it
196 * receives a pointer to the "global data" structure as it's only
197 * argument, and returns an integer return code, where 0 means
198 * "continue" and != 0 means "fatal error, hang the system".
199 */
200 typedef int (init_fnc_t) (void);
201
202 /************************************************************************
203 * Init Utilities *
204 ************************************************************************
205 * Some of this code should be moved into the core functions,
206 * but let's get it working (again) first...
207 */
208
209 static int init_baudrate (void)
210 {
211 char tmp[64]; /* long enough for environment variables */
212 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
213
214 gd->baudrate = (i > 0)
215 ? (int) simple_strtoul (tmp, NULL, 10)
216 : CONFIG_BAUDRATE;
217 return (0);
218 }
219
220 /***********************************************************************/
221
222 void __board_add_ram_info(int use_default)
223 {
224 /* please define platform specific board_add_ram_info() */
225 }
226 void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info")));
227
228
229 static int init_func_ram (void)
230 {
231 #ifdef CONFIG_BOARD_TYPES
232 int board_type = gd->board_type;
233 #else
234 int board_type = 0; /* use dummy arg */
235 #endif
236 puts ("DRAM: ");
237
238 if ((gd->ram_size = initdram (board_type)) > 0) {
239 print_size (gd->ram_size, "");
240 board_add_ram_info(0);
241 putc('\n');
242 return (0);
243 }
244 puts (failed);
245 return (1);
246 }
247
248 /***********************************************************************/
249
250 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
251 static int init_func_i2c (void)
252 {
253 puts ("I2C: ");
254 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
255 puts ("ready\n");
256 return (0);
257 }
258 #endif
259
260 #if defined(CONFIG_HARD_SPI)
261 static int init_func_spi (void)
262 {
263 puts ("SPI: ");
264 spi_init ();
265 puts ("ready\n");
266 return (0);
267 }
268 #endif
269
270 /***********************************************************************/
271
272 #if defined(CONFIG_WATCHDOG)
273 static int init_func_watchdog_init (void)
274 {
275 puts (" Watchdog enabled\n");
276 WATCHDOG_RESET ();
277 return (0);
278 }
279 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
280
281 static int init_func_watchdog_reset (void)
282 {
283 WATCHDOG_RESET ();
284 return (0);
285 }
286 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
287 #else
288 # define INIT_FUNC_WATCHDOG_INIT /* undef */
289 # define INIT_FUNC_WATCHDOG_RESET /* undef */
290 #endif /* CONFIG_WATCHDOG */
291
292 /************************************************************************
293 * Initialization sequence *
294 ************************************************************************
295 */
296
297 init_fnc_t *init_sequence[] = {
298
299 #if defined(CONFIG_BOARD_EARLY_INIT_F)
300 board_early_init_f,
301 #endif
302
303 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
304 get_clocks, /* get CPU and bus clocks (etc.) */
305 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
306 && !defined(CONFIG_TQM885D)
307 adjust_sdram_tbs_8xx,
308 #endif
309 init_timebase,
310 #endif
311 #ifdef CFG_ALLOC_DPRAM
312 #if !defined(CONFIG_CPM2)
313 dpram_init,
314 #endif
315 #endif
316 #if defined(CONFIG_BOARD_POSTCLK_INIT)
317 board_postclk_init,
318 #endif
319 env_init,
320 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
321 get_clocks_866, /* get CPU and bus clocks according to the environment variable */
322 sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
323 init_timebase,
324 #endif
325 init_baudrate,
326 serial_init,
327 console_init_f,
328 display_options,
329 #if defined(CONFIG_8260)
330 prt_8260_rsr,
331 prt_8260_clks,
332 #endif /* CONFIG_8260 */
333 #if defined(CONFIG_MPC83XX)
334 prt_83xx_rsr,
335 #endif
336 checkcpu,
337 #if defined(CONFIG_MPC5xxx)
338 prt_mpc5xxx_clks,
339 #endif /* CONFIG_MPC5xxx */
340 #if defined(CONFIG_MPC8220)
341 prt_mpc8220_clks,
342 #endif
343 checkboard,
344 INIT_FUNC_WATCHDOG_INIT
345 #if defined(CONFIG_MISC_INIT_F)
346 misc_init_f,
347 #endif
348 INIT_FUNC_WATCHDOG_RESET
349 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
350 init_func_i2c,
351 #endif
352 #if defined(CONFIG_HARD_SPI)
353 init_func_spi,
354 #endif
355 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
356 dtt_init,
357 #endif
358 #ifdef CONFIG_POST
359 post_init_f,
360 #endif
361 INIT_FUNC_WATCHDOG_RESET
362 init_func_ram,
363 #if defined(CFG_DRAM_TEST)
364 testdram,
365 #endif /* CFG_DRAM_TEST */
366 INIT_FUNC_WATCHDOG_RESET
367
368 NULL, /* Terminate this list */
369 };
370
371 #ifndef CONFIG_MAX_MEM_MAPPED
372 #define CONFIG_MAX_MEM_MAPPED (256 << 20)
373 #endif
374 ulong get_effective_memsize(void)
375 {
376 #ifndef CONFIG_VERY_BIG_RAM
377 return gd->ram_size;
378 #else
379 /* limit stack to what we can reasonable map */
380 return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
381 CONFIG_MAX_MEM_MAPPED : gd->ram_size);
382 #endif
383 }
384
385 /************************************************************************
386 *
387 * This is the first part of the initialization sequence that is
388 * implemented in C, but still running from ROM.
389 *
390 * The main purpose is to provide a (serial) console interface as
391 * soon as possible (so we can see any error messages), and to
392 * initialize the RAM so that we can relocate the monitor code to
393 * RAM.
394 *
395 * Be aware of the restrictions: global data is read-only, BSS is not
396 * initialized, and stack space is limited to a few kB.
397 *
398 ************************************************************************
399 */
400
401 void board_init_f (ulong bootflag)
402 {
403 bd_t *bd;
404 ulong len, addr, addr_sp;
405 ulong *s;
406 gd_t *id;
407 init_fnc_t **init_fnc_ptr;
408 #ifdef CONFIG_PRAM
409 int i;
410 ulong reg;
411 uchar tmp[64]; /* long enough for environment variables */
412 #endif
413
414 /* Pointer is writable since we allocated a register for it */
415 gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
416 /* compiler optimization barrier needed for GCC >= 3.4 */
417 __asm__ __volatile__("": : :"memory");
418
419 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC83XX)
420 /* Clear initial global data */
421 memset ((void *) gd, 0, sizeof (gd_t));
422 #endif
423
424 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
425 if ((*init_fnc_ptr) () != 0) {
426 hang ();
427 }
428 }
429
430 /*
431 * Now that we have DRAM mapped and working, we can
432 * relocate the code and continue running from DRAM.
433 *
434 * Reserve memory at end of RAM for (top down in that order):
435 * - area that won't get touched by U-Boot and Linux (optional)
436 * - kernel log buffer
437 * - protected RAM
438 * - LCD framebuffer
439 * - monitor code
440 * - board info struct
441 */
442 len = (ulong)&_end - CFG_MONITOR_BASE;
443
444 /*
445 * Subtract specified amount of memory to hide so that it won't
446 * get "touched" at all by U-Boot. By fixing up gd->ram_size
447 * the Linux kernel should now get passed the now "corrected"
448 * memory size and won't touch it either. This should work
449 * for arch/ppc and arch/powerpc. Only Linux board ports in
450 * arch/powerpc with bootwrapper support, that recalculate the
451 * memory size from the SDRAM controller setup will have to
452 * get fixed.
453 */
454 gd->ram_size -= CFG_MEM_TOP_HIDE;
455
456 addr = CFG_SDRAM_BASE + get_effective_memsize();
457
458 #ifdef CONFIG_LOGBUFFER
459 #ifndef CONFIG_ALT_LB_ADDR
460 /* reserve kernel log buffer */
461 addr -= (LOGBUFF_RESERVE);
462 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
463 #endif
464 #endif
465
466 #ifdef CONFIG_PRAM
467 /*
468 * reserve protected RAM
469 */
470 i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
471 reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
472 addr -= (reg << 10); /* size is in kB */
473 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
474 #endif /* CONFIG_PRAM */
475
476 /* round down to next 4 kB limit */
477 addr &= ~(4096 - 1);
478 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
479
480 #ifdef CONFIG_LCD
481 /* reserve memory for LCD display (always full pages) */
482 addr = lcd_setmem (addr);
483 gd->fb_base = addr;
484 #endif /* CONFIG_LCD */
485
486 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
487 /* reserve memory for video display (always full pages) */
488 addr = video_setmem (addr);
489 gd->fb_base = addr;
490 #endif /* CONFIG_VIDEO */
491
492 /*
493 * reserve memory for U-Boot code, data & bss
494 * round down to next 4 kB limit
495 */
496 addr -= len;
497 addr &= ~(4096 - 1);
498 #ifdef CONFIG_E500
499 /* round down to next 64 kB limit so that IVPR stays aligned */
500 addr &= ~(65536 - 1);
501 #endif
502
503 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
504
505 #ifdef CONFIG_AMIGAONEG3SE
506 gd->relocaddr = addr;
507 #endif
508
509 /*
510 * reserve memory for malloc() arena
511 */
512 addr_sp = addr - TOTAL_MALLOC_LEN;
513 debug ("Reserving %dk for malloc() at: %08lx\n",
514 TOTAL_MALLOC_LEN >> 10, addr_sp);
515
516 /*
517 * (permanently) allocate a Board Info struct
518 * and a permanent copy of the "global" data
519 */
520 addr_sp -= sizeof (bd_t);
521 bd = (bd_t *) addr_sp;
522 gd->bd = bd;
523 debug ("Reserving %d Bytes for Board Info at: %08lx\n",
524 sizeof (bd_t), addr_sp);
525 addr_sp -= sizeof (gd_t);
526 id = (gd_t *) addr_sp;
527 debug ("Reserving %d Bytes for Global Data at: %08lx\n",
528 sizeof (gd_t), addr_sp);
529
530 /*
531 * Finally, we set up a new (bigger) stack.
532 *
533 * Leave some safety gap for SP, force alignment on 16 byte boundary
534 * Clear initial stack frame
535 */
536 addr_sp -= 16;
537 addr_sp &= ~0xF;
538 s = (ulong *)addr_sp;
539 *s-- = 0;
540 *s-- = 0;
541 addr_sp = (ulong)s;
542 debug ("Stack Pointer at: %08lx\n", addr_sp);
543
544 /*
545 * Save local variables to board info struct
546 */
547
548 bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
549 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
550
551 #ifdef CONFIG_IP860
552 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
553 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
554 #elif defined CONFIG_MPC8220
555 bd->bi_sramstart = CFG_SRAM_BASE; /* start of SRAM memory */
556 bd->bi_sramsize = CFG_SRAM_SIZE; /* size of SRAM memory */
557 #else
558 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
559 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
560 #endif
561
562 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
563 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
564 bd->bi_immr_base = CFG_IMMR; /* base of IMMR register */
565 #endif
566 #if defined(CONFIG_MPC5xxx)
567 bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
568 #endif
569 #if defined(CONFIG_MPC83XX)
570 bd->bi_immrbar = CFG_IMMR;
571 #endif
572 #if defined(CONFIG_MPC8220)
573 bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
574 bd->bi_inpfreq = gd->inp_clk;
575 bd->bi_pcifreq = gd->pci_clk;
576 bd->bi_vcofreq = gd->vco_clk;
577 bd->bi_pevfreq = gd->pev_clk;
578 bd->bi_flbfreq = gd->flb_clk;
579
580 /* store bootparam to sram (backward compatible), here? */
581 {
582 u32 *sram = (u32 *)CFG_SRAM_BASE;
583 *sram++ = gd->ram_size;
584 *sram++ = gd->bus_clk;
585 *sram++ = gd->inp_clk;
586 *sram++ = gd->cpu_clk;
587 *sram++ = gd->vco_clk;
588 *sram++ = gd->flb_clk;
589 *sram++ = 0xb8c3ba11; /* boot signature */
590 }
591 #endif
592
593 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
594
595 WATCHDOG_RESET ();
596 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
597 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
598 #if defined(CONFIG_CPM2)
599 bd->bi_cpmfreq = gd->cpm_clk;
600 bd->bi_brgfreq = gd->brg_clk;
601 bd->bi_sccfreq = gd->scc_clk;
602 bd->bi_vco = gd->vco_out;
603 #endif /* CONFIG_CPM2 */
604 #if defined(CONFIG_MPC512X)
605 bd->bi_ipsfreq = gd->ips_clk;
606 #endif /* CONFIG_MPC512X */
607 #if defined(CONFIG_MPC5xxx)
608 bd->bi_ipbfreq = gd->ipb_clk;
609 bd->bi_pcifreq = gd->pci_clk;
610 #endif /* CONFIG_MPC5xxx */
611 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
612
613 #ifdef CFG_EXTBDINFO
614 strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
615 strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
616
617 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
618 bd->bi_plb_busfreq = gd->bus_clk;
619 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
620 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
621 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
622 bd->bi_pci_busfreq = get_PCI_freq ();
623 bd->bi_opbfreq = get_OPB_freq ();
624 #elif defined(CONFIG_XILINX_ML300)
625 bd->bi_pci_busfreq = get_PCI_freq ();
626 #endif
627 #endif
628
629 debug ("New Stack Pointer is: %08lx\n", addr_sp);
630
631 WATCHDOG_RESET ();
632
633 #ifdef CONFIG_POST
634 post_bootmode_init();
635 post_run (NULL, POST_ROM | post_bootmode_get(0));
636 #endif
637
638 WATCHDOG_RESET();
639
640 memcpy (id, (void *)gd, sizeof (gd_t));
641
642 relocate_code (addr_sp, id, addr);
643
644 /* NOTREACHED - relocate_code() does not return */
645 }
646
647 /************************************************************************
648 *
649 * This is the next part if the initialization sequence: we are now
650 * running from RAM and have a "normal" C environment, i. e. global
651 * data can be written, BSS has been cleared, the stack size in not
652 * that critical any more, etc.
653 *
654 ************************************************************************
655 */
656 void board_init_r (gd_t *id, ulong dest_addr)
657 {
658 cmd_tbl_t *cmdtp;
659 char *s, *e;
660 bd_t *bd;
661 int i;
662 extern void malloc_bin_reloc (void);
663 #ifndef CFG_ENV_IS_NOWHERE
664 extern char * env_name_spec;
665 #endif
666
667 #ifndef CFG_NO_FLASH
668 ulong flash_size;
669 #endif
670
671 gd = id; /* initialize RAM version of global data */
672 bd = gd->bd;
673
674 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
675
676 #if defined(CONFIG_RELOC_FIXUP_WORKS)
677 gd->reloc_off = 0;
678 mem_malloc_end = dest_addr;
679 #else
680 gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
681 #endif
682
683 #ifdef CONFIG_SERIAL_MULTI
684 serial_initialize();
685 #endif
686
687 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
688
689 WATCHDOG_RESET ();
690
691 #if defined(CONFIG_BOARD_EARLY_INIT_R)
692 board_early_init_r ();
693 #endif
694
695 monitor_flash_len = (ulong)&__init_end - dest_addr;
696
697 /*
698 * We have to relocate the command table manually
699 */
700 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
701 ulong addr;
702 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
703 #if 0
704 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
705 cmdtp->name, (ulong) (cmdtp->cmd), addr);
706 #endif
707 cmdtp->cmd =
708 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
709
710 addr = (ulong)(cmdtp->name) + gd->reloc_off;
711 cmdtp->name = (char *)addr;
712
713 if (cmdtp->usage) {
714 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
715 cmdtp->usage = (char *)addr;
716 }
717 #ifdef CFG_LONGHELP
718 if (cmdtp->help) {
719 addr = (ulong)(cmdtp->help) + gd->reloc_off;
720 cmdtp->help = (char *)addr;
721 }
722 #endif
723 }
724 /* there are some other pointer constants we must deal with */
725 #ifndef CFG_ENV_IS_NOWHERE
726 env_name_spec += gd->reloc_off;
727 #endif
728
729 WATCHDOG_RESET ();
730
731 #ifdef CONFIG_LOGBUFFER
732 logbuff_init_ptrs ();
733 #endif
734 #ifdef CONFIG_POST
735 post_output_backlog ();
736 post_reloc ();
737 #endif
738
739 WATCHDOG_RESET();
740
741 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || \
742 defined (CONFIG_FLAGADM) || defined(CONFIG_MPC83XX)
743 icache_enable (); /* it's time to enable the instruction cache */
744 #endif
745
746 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
747 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
748 #endif
749
750 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
751 /*
752 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
753 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
754 * bridge there.
755 */
756 pci_init ();
757 #endif
758 #if defined(CONFIG_BAB7xx)
759 /*
760 * Initialise the ISA bridge
761 */
762 initialise_w83c553f ();
763 #endif
764
765 asm ("sync ; isync");
766
767 /*
768 * Setup trap handlers
769 */
770 trap_init (dest_addr);
771
772 #if !defined(CFG_NO_FLASH)
773 puts ("FLASH: ");
774
775 if ((flash_size = flash_init ()) > 0) {
776 # ifdef CFG_FLASH_CHECKSUM
777 print_size (flash_size, "");
778 /*
779 * Compute and print flash CRC if flashchecksum is set to 'y'
780 *
781 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
782 */
783 s = getenv ("flashchecksum");
784 if (s && (*s == 'y')) {
785 printf (" CRC: %08lX",
786 crc32 (0, (const unsigned char *) CFG_FLASH_BASE, flash_size)
787 );
788 }
789 putc ('\n');
790 # else /* !CFG_FLASH_CHECKSUM */
791 print_size (flash_size, "\n");
792 # endif /* CFG_FLASH_CHECKSUM */
793 } else {
794 puts (failed);
795 hang ();
796 }
797
798 bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */
799 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
800
801 #if defined(CFG_UPDATE_FLASH_SIZE)
802 /* Make a update of the Memctrl. */
803 update_flash_size (flash_size);
804 #endif
805
806
807 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
808 /* flash mapped at end of memory map */
809 bd->bi_flashoffset = TEXT_BASE + flash_size;
810 # elif CFG_MONITOR_BASE == CFG_FLASH_BASE
811 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
812 # else
813 bd->bi_flashoffset = 0;
814 # endif
815 #else /* CFG_NO_FLASH */
816
817 bd->bi_flashsize = 0;
818 bd->bi_flashstart = 0;
819 bd->bi_flashoffset = 0;
820 #endif /* !CFG_NO_FLASH */
821
822 WATCHDOG_RESET ();
823
824 /* initialize higher level parts of CPU like time base and timers */
825 cpu_init_r ();
826
827 WATCHDOG_RESET ();
828
829 /* initialize malloc() area */
830 mem_malloc_init ();
831 malloc_bin_reloc ();
832
833 #ifdef CONFIG_SPI
834 # if !defined(CFG_ENV_IS_IN_EEPROM)
835 spi_init_f ();
836 # endif
837 spi_init_r ();
838 #endif
839
840 #if defined(CONFIG_CMD_NAND)
841 WATCHDOG_RESET ();
842 puts ("NAND: ");
843 nand_init(); /* go init the NAND */
844 #endif
845
846 /* relocate environment function pointers etc. */
847 env_relocate ();
848
849 /*
850 * Fill in missing fields of bd_info.
851 * We do this here, where we have "normal" access to the
852 * environment; we used to do this still running from ROM,
853 * where had to use getenv_r(), which can be pretty slow when
854 * the environment is in EEPROM.
855 */
856
857 #if defined(CFG_EXTBDINFO)
858 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
859 #if defined(CONFIG_I2CFAST)
860 /*
861 * set bi_iic_fast for linux taking environment variable
862 * "i2cfast" into account
863 */
864 {
865 char *s = getenv ("i2cfast");
866 if (s && ((*s == 'y') || (*s == 'Y'))) {
867 bd->bi_iic_fast[0] = 1;
868 bd->bi_iic_fast[1] = 1;
869 } else {
870 bd->bi_iic_fast[0] = 0;
871 bd->bi_iic_fast[1] = 0;
872 }
873 }
874 #else
875 bd->bi_iic_fast[0] = 0;
876 bd->bi_iic_fast[1] = 0;
877 #endif /* CONFIG_I2CFAST */
878 #endif /* CONFIG_405GP, CONFIG_405EP */
879 #endif /* CFG_EXTBDINFO */
880
881 #if defined(CONFIG_SC3)
882 sc3_read_eeprom();
883 #endif
884
885 #if defined (CFG_ID_EEPROM) || defined (CFG_I2C_MAC_OFFSET)
886 mac_read_from_eeprom();
887 #endif
888
889 s = getenv ("ethaddr");
890 #if defined (CONFIG_MBX) || \
891 defined (CONFIG_RPXCLASSIC) || \
892 defined(CONFIG_IAD210) || \
893 defined(CONFIG_V38B)
894 if (s == NULL)
895 board_get_enetaddr (bd->bi_enetaddr);
896 else
897 #endif
898 for (i = 0; i < 6; ++i) {
899 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
900 if (s)
901 s = (*e) ? e + 1 : e;
902 }
903 #ifdef CONFIG_HERMES
904 if ((gd->board_type >> 16) == 2)
905 bd->bi_ethspeed = gd->board_type & 0xFFFF;
906 else
907 bd->bi_ethspeed = 0xFFFF;
908 #endif
909
910 #ifdef CONFIG_NX823
911 load_sernum_ethaddr ();
912 #endif
913
914 #ifdef CONFIG_HAS_ETH1
915 /* handle the 2nd ethernet address */
916
917 s = getenv ("eth1addr");
918
919 for (i = 0; i < 6; ++i) {
920 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
921 if (s)
922 s = (*e) ? e + 1 : e;
923 }
924 #endif
925 #ifdef CONFIG_HAS_ETH2
926 /* handle the 3rd ethernet address */
927
928 s = getenv ("eth2addr");
929 #if defined(CONFIG_XPEDITE1K) || defined(CONFIG_METROBOX) || defined(CONFIG_KAREF)
930 if (s == NULL)
931 board_get_enetaddr(bd->bi_enet2addr);
932 else
933 #endif
934 for (i = 0; i < 6; ++i) {
935 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
936 if (s)
937 s = (*e) ? e + 1 : e;
938 }
939 #endif
940
941 #ifdef CONFIG_HAS_ETH3
942 /* handle 4th ethernet address */
943 s = getenv("eth3addr");
944 #if defined(CONFIG_XPEDITE1K) || defined(CONFIG_METROBOX) || defined(CONFIG_KAREF)
945 if (s == NULL)
946 board_get_enetaddr(bd->bi_enet3addr);
947 else
948 #endif
949 for (i = 0; i < 6; ++i) {
950 bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
951 if (s)
952 s = (*e) ? e + 1 : e;
953 }
954 #endif
955
956 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
957 defined(CONFIG_TQM8272) || \
958 defined(CONFIG_CCM) || defined(CONFIG_KUP4K) || \
959 defined(CONFIG_KUP4X) || defined(CONFIG_PCS440EP)
960 load_sernum_ethaddr ();
961 #endif
962 /* IP Address */
963 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
964
965 WATCHDOG_RESET ();
966
967 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45)
968 /*
969 * Do pci configuration
970 */
971 pci_init ();
972 #endif
973
974 /** leave this here (after malloc(), environment and PCI are working) **/
975 /* Initialize devices */
976 devices_init ();
977
978 /* Initialize the jump table for applications */
979 jumptable_init ();
980
981 #if defined(CONFIG_API)
982 /* Initialize API */
983 api_init ();
984 #endif
985
986 /* Initialize the console (after the relocation and devices init) */
987 console_init_r ();
988
989 #if defined(CONFIG_CCM) || \
990 defined(CONFIG_COGENT) || \
991 defined(CONFIG_CPCI405) || \
992 defined(CONFIG_EVB64260) || \
993 defined(CONFIG_KUP4K) || \
994 defined(CONFIG_KUP4X) || \
995 defined(CONFIG_LWMON) || \
996 defined(CONFIG_PCU_E) || \
997 defined(CONFIG_SC3) || \
998 defined(CONFIG_W7O) || \
999 defined(CONFIG_MISC_INIT_R)
1000 /* miscellaneous platform dependent initialisations */
1001 misc_init_r ();
1002 #endif
1003
1004 #ifdef CONFIG_HERMES
1005 if (bd->bi_ethspeed != 0xFFFF)
1006 hermes_start_lxt980 ((int) bd->bi_ethspeed);
1007 #endif
1008
1009 #if defined(CONFIG_CMD_KGDB)
1010 WATCHDOG_RESET ();
1011 puts ("KGDB: ");
1012 kgdb_init ();
1013 #endif
1014
1015 debug ("U-Boot relocated to %08lx\n", dest_addr);
1016
1017 /*
1018 * Enable Interrupts
1019 */
1020 interrupt_init ();
1021
1022 /* Must happen after interrupts are initialized since
1023 * an irq handler gets installed
1024 */
1025 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
1026 serial_buffered_init();
1027 #endif
1028
1029 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
1030 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
1031 #endif
1032
1033 udelay (20);
1034
1035 set_timer (0);
1036
1037 /* Initialize from environment */
1038 if ((s = getenv ("loadaddr")) != NULL) {
1039 load_addr = simple_strtoul (s, NULL, 16);
1040 }
1041 #if defined(CONFIG_CMD_NET)
1042 if ((s = getenv ("bootfile")) != NULL) {
1043 copy_filename (BootFile, s, sizeof (BootFile));
1044 }
1045 #endif
1046
1047 WATCHDOG_RESET ();
1048
1049 #if defined(CONFIG_CMD_SCSI)
1050 WATCHDOG_RESET ();
1051 puts ("SCSI: ");
1052 scsi_init ();
1053 #endif
1054
1055 #if defined(CONFIG_CMD_DOC)
1056 WATCHDOG_RESET ();
1057 puts ("DOC: ");
1058 doc_init ();
1059 #endif
1060
1061 #if defined(CONFIG_CMD_NET)
1062 #if defined(CONFIG_NET_MULTI)
1063 WATCHDOG_RESET ();
1064 puts ("Net: ");
1065 #endif
1066 eth_initialize (bd);
1067 #endif
1068
1069 #if defined(CONFIG_CMD_NET) && ( \
1070 defined(CONFIG_CCM) || \
1071 defined(CONFIG_ELPT860) || \
1072 defined(CONFIG_EP8260) || \
1073 defined(CONFIG_IP860) || \
1074 defined(CONFIG_IVML24) || \
1075 defined(CONFIG_IVMS8) || \
1076 defined(CONFIG_MPC8260ADS) || \
1077 defined(CONFIG_MPC8266ADS) || \
1078 defined(CONFIG_MPC8560ADS) || \
1079 defined(CONFIG_PCU_E) || \
1080 defined(CONFIG_RPXSUPER) || \
1081 defined(CONFIG_STXGP3) || \
1082 defined(CONFIG_SPD823TS) || \
1083 defined(CONFIG_RESET_PHY_R) )
1084
1085 WATCHDOG_RESET ();
1086 debug ("Reset Ethernet PHY\n");
1087 reset_phy ();
1088 #endif
1089
1090 #ifdef CONFIG_POST
1091 post_run (NULL, POST_RAM | post_bootmode_get(0));
1092 #endif
1093
1094 #if defined(CONFIG_CMD_PCMCIA) \
1095 && !defined(CONFIG_CMD_IDE)
1096 WATCHDOG_RESET ();
1097 puts ("PCMCIA:");
1098 pcmcia_init ();
1099 #endif
1100
1101 #if defined(CONFIG_CMD_IDE)
1102 WATCHDOG_RESET ();
1103 # ifdef CONFIG_IDE_8xx_PCCARD
1104 puts ("PCMCIA:");
1105 # else
1106 puts ("IDE: ");
1107 #endif
1108 #if defined(CONFIG_START_IDE)
1109 if (board_start_ide())
1110 ide_init ();
1111 #else
1112 ide_init ();
1113 #endif
1114 #endif
1115
1116 #if defined(CONFIG_CMD_SATA)
1117 puts ("SATA: ");
1118 sata_initialize ();
1119 #endif
1120
1121 #ifdef CONFIG_LAST_STAGE_INIT
1122 WATCHDOG_RESET ();
1123 /*
1124 * Some parts can be only initialized if all others (like
1125 * Interrupts) are up and running (i.e. the PC-style ISA
1126 * keyboard).
1127 */
1128 last_stage_init ();
1129 #endif
1130
1131 #if defined(CONFIG_CMD_BEDBUG)
1132 WATCHDOG_RESET ();
1133 bedbug_init ();
1134 #endif
1135
1136 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
1137 /*
1138 * Export available size of memory for Linux,
1139 * taking into account the protected RAM at top of memory
1140 */
1141 {
1142 ulong pram;
1143 uchar memsz[32];
1144 #ifdef CONFIG_PRAM
1145 char *s;
1146
1147 if ((s = getenv ("pram")) != NULL) {
1148 pram = simple_strtoul (s, NULL, 10);
1149 } else {
1150 pram = CONFIG_PRAM;
1151 }
1152 #else
1153 pram=0;
1154 #endif
1155 #ifdef CONFIG_LOGBUFFER
1156 #ifndef CONFIG_ALT_LB_ADDR
1157 /* Also take the logbuffer into account (pram is in kB) */
1158 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1159 #endif
1160 #endif
1161 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1162 setenv ("mem", (char *)memsz);
1163 }
1164 #endif
1165
1166 #ifdef CONFIG_PS2KBD
1167 puts ("PS/2: ");
1168 kbd_init();
1169 #endif
1170
1171 #ifdef CONFIG_MODEM_SUPPORT
1172 {
1173 extern int do_mdm_init;
1174 do_mdm_init = gd->do_mdm_init;
1175 }
1176 #endif
1177
1178 /* Initialization complete - start the monitor */
1179
1180 /* main_loop() can return to retry autoboot, if so just run it again. */
1181 for (;;) {
1182 WATCHDOG_RESET ();
1183 main_loop ();
1184 }
1185
1186 /* NOTREACHED - no way out of command loop except booting */
1187 }
1188
1189 void hang (void)
1190 {
1191 puts ("### ERROR ### Please RESET the board ###\n");
1192 show_boot_progress(-30);
1193 for (;;);
1194 }
1195
1196 #ifdef CONFIG_MODEM_SUPPORT
1197 /* called from main loop (common/main.c) */
1198 /* 'inline' - We have to do it fast */
1199 static inline void mdm_readline(char *buf, int bufsiz)
1200 {
1201 char c;
1202 char *p;
1203 int n;
1204
1205 n = 0;
1206 p = buf;
1207 for(;;) {
1208 c = serial_getc();
1209
1210 /* dbg("(%c)", c); */
1211
1212 switch(c) {
1213 case '\r':
1214 break;
1215 case '\n':
1216 *p = '\0';
1217 return;
1218
1219 default:
1220 if(n++ > bufsiz) {
1221 *p = '\0';
1222 return; /* sanity check */
1223 }
1224 *p = c;
1225 p++;
1226 break;
1227 }
1228 }
1229 }
1230
1231 extern void dbg(const char *fmt, ...);
1232 int mdm_init (void)
1233 {
1234 char env_str[16];
1235 char *init_str;
1236 int i;
1237 extern char console_buffer[];
1238 extern void enable_putc(void);
1239 extern int hwflow_onoff(int);
1240
1241 enable_putc(); /* enable serial_putc() */
1242
1243 #ifdef CONFIG_HWFLOW
1244 init_str = getenv("mdm_flow_control");
1245 if (init_str && (strcmp(init_str, "rts/cts") == 0))
1246 hwflow_onoff (1);
1247 else
1248 hwflow_onoff(-1);
1249 #endif
1250
1251 for (i = 1;;i++) {
1252 sprintf(env_str, "mdm_init%d", i);
1253 if ((init_str = getenv(env_str)) != NULL) {
1254 serial_puts(init_str);
1255 serial_puts("\n");
1256 for(;;) {
1257 mdm_readline(console_buffer, CFG_CBSIZE);
1258 dbg("ini%d: [%s]", i, console_buffer);
1259
1260 if ((strcmp(console_buffer, "OK") == 0) ||
1261 (strcmp(console_buffer, "ERROR") == 0)) {
1262 dbg("ini%d: cmd done", i);
1263 break;
1264 } else /* in case we are originating call ... */
1265 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1266 dbg("ini%d: connect", i);
1267 return 0;
1268 }
1269 }
1270 } else
1271 break; /* no init string - stop modem init */
1272
1273 udelay(100000);
1274 }
1275
1276 udelay(100000);
1277
1278 /* final stage - wait for connect */
1279 for(;i > 1;) { /* if 'i' > 1 - wait for connection
1280 message from modem */
1281 mdm_readline(console_buffer, CFG_CBSIZE);
1282 dbg("ini_f: [%s]", console_buffer);
1283 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1284 dbg("ini_f: connected");
1285 return 0;
1286 }
1287 }
1288
1289 return 0;
1290 }
1291
1292 #endif
1293
1294 #if 0 /* We could use plain global data, but the resulting code is bigger */
1295 /*
1296 * Pointer to initial global data area
1297 *
1298 * Here we initialize it.
1299 */
1300 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1301 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1302 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1303 #endif /* 0 */
1304
1305 /************************************************************************/
"Das U-Boot" Source Tree