2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
38 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
41 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
44 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
47 #ifdef CONFIG_STATUS_LED
48 #include <status_led.h>
51 #ifdef CFG_ALLOC_DPRAM
52 #if !(defined(CONFIG_8260)||defined(CONFIG_MPC8560))
57 #if defined(CONFIG_BAB7xx)
61 #if defined(CONFIG_POST)
64 #if defined(CONFIG_LOGBUFFER)
67 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
68 #include <asm/cache.h>
74 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
77 #if defined(CONFIG_HARD_I2C) || \
78 defined(CONFIG_SOFT_I2C)
81 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
82 void nand_init (void);
85 static char *failed = "*** failed ***\n";
87 #if defined(CONFIG_OXC) || defined(CONFIG_PCU_E) || defined(CONFIG_RMU)
88 extern flash_info_t flash_info[];
91 #include <environment.h>
93 #if defined(CFG_ENV_IS_EMBEDDED)
94 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
95 #elif ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
96 (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
97 defined(CFG_ENV_IS_IN_NVRAM)
98 #define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
100 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
103 extern ulong __init_end;
105 ulong monitor_flash_len;
107 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
108 #include <bedbug/type.h>
112 * Begin and End of memory area for malloc(), and current "brk"
114 static ulong mem_malloc_start = 0;
115 static ulong mem_malloc_end = 0;
116 static ulong mem_malloc_brk = 0;
118 /************************************************************************
120 ************************************************************************
124 * The Malloc area is immediately below the monitor copy in DRAM
126 static void mem_malloc_init (void)
128 DECLARE_GLOBAL_DATA_PTR;
130 ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
132 mem_malloc_end = dest_addr;
133 mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
134 mem_malloc_brk = mem_malloc_start;
136 memset ((void *) mem_malloc_start,
138 mem_malloc_end - mem_malloc_start);
141 void *sbrk (ptrdiff_t increment)
143 ulong old = mem_malloc_brk;
144 ulong new = old + increment;
146 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
149 mem_malloc_brk = new;
150 return ((void *) old);
153 char *strmhz (char *buf, long hz)
159 l = sprintf (buf, "%ld", n);
160 m = (hz % 1000000L) / 1000L;
162 sprintf (buf + l, ".%03ld", m);
167 * All attempts to come up with a "common" initialization sequence
168 * that works for all boards and architectures failed: some of the
169 * requirements are just _too_ different. To get rid of the resulting
170 * mess of board dependend #ifdef'ed code we now make the whole
171 * initialization sequence configurable to the user.
173 * The requirements for any new initalization function is simple: it
174 * receives a pointer to the "global data" structure as it's only
175 * argument, and returns an integer return code, where 0 means
176 * "continue" and != 0 means "fatal error, hang the system".
178 typedef int (init_fnc_t) (void);
180 /************************************************************************
182 ************************************************************************
183 * Some of this code should be moved into the core functions,
184 * but let's get it working (again) first...
187 static int init_baudrate (void)
189 DECLARE_GLOBAL_DATA_PTR;
191 uchar tmp[64]; /* long enough for environment variables */
192 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
194 gd->baudrate = (i > 0)
195 ? (int) simple_strtoul (tmp, NULL, 10)
200 /***********************************************************************/
202 static int init_func_ram (void)
204 DECLARE_GLOBAL_DATA_PTR;
206 #ifdef CONFIG_BOARD_TYPES
207 int board_type = gd->board_type;
209 int board_type = 0; /* use dummy arg */
213 if ((gd->ram_size = initdram (board_type)) > 0) {
214 print_size (gd->ram_size, "\n");
221 /***********************************************************************/
223 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
224 static int init_func_i2c (void)
227 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
233 /***********************************************************************/
235 #if defined(CONFIG_WATCHDOG)
236 static int init_func_watchdog_init (void)
238 puts (" Watchdog enabled\n");
242 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
244 static int init_func_watchdog_reset (void)
249 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
251 # define INIT_FUNC_WATCHDOG_INIT /* undef */
252 # define INIT_FUNC_WATCHDOG_RESET /* undef */
253 #endif /* CONFIG_WATCHDOG */
255 /************************************************************************
256 * Initialization sequence *
257 ************************************************************************
260 init_fnc_t *init_sequence[] = {
262 #if defined(CONFIG_BOARD_EARLY_INIT_F)
266 #if !defined(CONFIG_TQM866M)
267 get_clocks, /* get CPU and bus clocks (etc.) */
270 #ifdef CFG_ALLOC_DPRAM
271 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
275 #if defined(CONFIG_BOARD_POSTCLK_INIT)
279 #if defined(CONFIG_TQM866M)
280 get_clocks_866, /* get CPU and bus clocks according to the environment variable */
281 sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
288 #if defined(CONFIG_8260)
291 #endif /* CONFIG_8260 */
293 #if defined(CONFIG_MPC5xxx)
295 #endif /* CONFIG_MPC5xxx */
297 INIT_FUNC_WATCHDOG_INIT
298 #if defined(CONFIG_MISC_INIT_F)
301 INIT_FUNC_WATCHDOG_RESET
302 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
305 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
311 INIT_FUNC_WATCHDOG_RESET
313 #if defined(CFG_DRAM_TEST)
315 #endif /* CFG_DRAM_TEST */
316 INIT_FUNC_WATCHDOG_RESET
318 NULL, /* Terminate this list */
321 /************************************************************************
323 * This is the first part of the initialization sequence that is
324 * implemented in C, but still running from ROM.
326 * The main purpose is to provide a (serial) console interface as
327 * soon as possible (so we can see any error messages), and to
328 * initialize the RAM so that we can relocate the monitor code to
331 * Be aware of the restrictions: global data is read-only, BSS is not
332 * initialized, and stack space is limited to a few kB.
334 ************************************************************************
337 void board_init_f (ulong bootflag)
339 DECLARE_GLOBAL_DATA_PTR;
342 ulong len, addr, addr_sp;
344 init_fnc_t **init_fnc_ptr;
348 uchar tmp[64]; /* long enough for environment variables */
351 /* Pointer is writable since we allocated a register for it */
352 gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
354 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
355 /* Clear initial global data */
356 memset ((void *) gd, 0, sizeof (gd_t));
359 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
360 if ((*init_fnc_ptr) () != 0) {
366 * Now that we have DRAM mapped and working, we can
367 * relocate the code and continue running from DRAM.
369 * Reserve memory at end of RAM for (top down in that order):
370 * - kernel log buffer
374 * - board info struct
376 len = (ulong)&_end - CFG_MONITOR_BASE;
378 #ifndef CONFIG_VERY_BIG_RAM
379 addr = CFG_SDRAM_BASE + gd->ram_size;
381 /* only allow stack below 256M */
382 addr = CFG_SDRAM_BASE +
383 (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
386 #ifdef CONFIG_LOGBUFFER
387 /* reserve kernel log buffer */
388 addr -= (LOGBUFF_RESERVE);
389 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
394 * reserve protected RAM
396 i = getenv_r ("pram", tmp, sizeof (tmp));
397 reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
398 addr -= (reg << 10); /* size is in kB */
399 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
400 #endif /* CONFIG_PRAM */
402 /* round down to next 4 kB limit */
404 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
407 /* reserve memory for LCD display (always full pages) */
408 addr = lcd_setmem (addr);
410 #endif /* CONFIG_LCD */
412 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
413 /* reserve memory for video display (always full pages) */
414 addr = video_setmem (addr);
416 #endif /* CONFIG_VIDEO */
419 * reserve memory for U-Boot code, data & bss
420 * round down to next 4 kB limit
425 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
427 #ifdef CONFIG_AMIGAONEG3SE
428 gd->relocaddr = addr;
432 * reserve memory for malloc() arena
434 addr_sp = addr - TOTAL_MALLOC_LEN;
435 debug ("Reserving %dk for malloc() at: %08lx\n",
436 TOTAL_MALLOC_LEN >> 10, addr_sp);
439 * (permanently) allocate a Board Info struct
440 * and a permanent copy of the "global" data
442 addr_sp -= sizeof (bd_t);
443 bd = (bd_t *) addr_sp;
445 debug ("Reserving %d Bytes for Board Info at: %08lx\n",
446 sizeof (bd_t), addr_sp);
447 addr_sp -= sizeof (gd_t);
448 id = (gd_t *) addr_sp;
449 debug ("Reserving %d Bytes for Global Data at: %08lx\n",
450 sizeof (gd_t), addr_sp);
453 * Finally, we set up a new (bigger) stack.
455 * Leave some safety gap for SP, force alignment on 16 byte boundary
456 * Clear initial stack frame
460 *((ulong *) addr_sp)-- = 0;
461 *((ulong *) addr_sp)-- = 0;
462 debug ("Stack Pointer at: %08lx\n", addr_sp);
465 * Save local variables to board info struct
468 bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
469 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
472 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
473 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
475 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
476 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
479 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
481 bd->bi_immr_base = CFG_IMMR; /* base of IMMR register */
483 #if defined(CONFIG_MPC5xxx)
484 bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
487 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
490 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
491 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
492 #if defined(CONFIG_8260) || defined(CONFIG_MPC8560)
493 bd->bi_cpmfreq = gd->cpm_clk;
494 bd->bi_brgfreq = gd->brg_clk;
495 bd->bi_sccfreq = gd->scc_clk;
496 bd->bi_vco = gd->vco_out;
497 #endif /* CONFIG_8260 */
498 #if defined(CONFIG_MPC5xxx)
499 bd->bi_ipbfreq = gd->ipb_clk;
500 bd->bi_pcifreq = gd->pci_clk;
501 #endif /* CONFIG_MPC5xxx */
502 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
505 strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
506 strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
508 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
509 bd->bi_plb_busfreq = gd->bus_clk;
510 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
511 bd->bi_pci_busfreq = get_PCI_freq ();
512 bd->bi_opbfreq = get_OPB_freq ();
514 #if defined(CONFIG_I2CFAST)
516 * set bi_iic_fast for linux taking environment variable
517 * "i2cfast" into account
520 char *s = getenv ("i2cfast");
521 if (s && ((*s == 'y') || (*s == 'Y'))) {
522 bd->bi_iic_fast[0] = 1;
523 bd->bi_iic_fast[1] = 1;
525 bd->bi_iic_fast[0] = 0;
526 bd->bi_iic_fast[1] = 0;
530 bd->bi_iic_fast[0] = 0;
531 bd->bi_iic_fast[1] = 0;
534 #elif defined(CONFIG_XILINX_ML300)
535 bd->bi_pci_busfreq = get_PCI_freq ();
539 debug ("New Stack Pointer is: %08lx\n", addr_sp);
544 post_bootmode_init();
545 post_run (NULL, POST_ROM | post_bootmode_get(0));
550 memcpy (id, (void *)gd, sizeof (gd_t));
552 relocate_code (addr_sp, id, addr);
554 /* NOTREACHED - relocate_code() does not return */
558 /************************************************************************
560 * This is the next part if the initialization sequence: we are now
561 * running from RAM and have a "normal" C environment, i. e. global
562 * data can be written, BSS has been cleared, the stack size in not
563 * that critical any more, etc.
565 ************************************************************************
568 void board_init_r (gd_t *id, ulong dest_addr)
570 DECLARE_GLOBAL_DATA_PTR;
575 extern void malloc_bin_reloc (void);
576 #ifndef CFG_ENV_IS_NOWHERE
577 extern char * env_name_spec;
584 gd = id; /* initialize RAM version of global data */
587 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
589 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
593 #if defined(CONFIG_BOARD_EARLY_INIT_R)
594 board_early_init_r ();
597 gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
599 monitor_flash_len = (ulong)&__init_end - dest_addr;
602 * We have to relocate the command table manually
604 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
606 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
608 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
609 cmdtp->name, (ulong) (cmdtp->cmd), addr);
612 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
614 addr = (ulong)(cmdtp->name) + gd->reloc_off;
615 cmdtp->name = (char *)addr;
618 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
619 cmdtp->usage = (char *)addr;
623 addr = (ulong)(cmdtp->help) + gd->reloc_off;
624 cmdtp->help = (char *)addr;
628 /* there are some other pointer constants we must deal with */
629 #ifndef CFG_ENV_IS_NOWHERE
630 env_name_spec += gd->reloc_off;
635 #ifdef CONFIG_LOGBUFFER
636 logbuff_init_ptrs ();
639 post_output_backlog ();
645 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM)
646 icache_enable (); /* it's time to enable the instruction cache */
649 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
650 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
653 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
655 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
656 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
661 #if defined(CONFIG_BAB7xx)
663 * Initialise the ISA bridge
665 initialise_w83c553f ();
668 asm ("sync ; isync");
671 * Setup trap handlers
673 trap_init (dest_addr);
675 #if !defined(CFG_NO_FLASH)
678 if ((flash_size = flash_init ()) > 0) {
679 # ifdef CFG_FLASH_CHECKSUM
680 print_size (flash_size, "");
682 * Compute and print flash CRC if flashchecksum is set to 'y'
684 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
686 s = getenv ("flashchecksum");
687 if (s && (*s == 'y')) {
688 printf (" CRC: %08lX",
689 crc32 (0, (const unsigned char *) CFG_FLASH_BASE, flash_size)
693 # else /* !CFG_FLASH_CHECKSUM */
694 print_size (flash_size, "\n");
695 # endif /* CFG_FLASH_CHECKSUM */
701 bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */
702 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
703 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
704 /* flash mapped at end of memory map */
705 bd->bi_flashoffset = TEXT_BASE + flash_size;
706 # elif CFG_MONITOR_BASE == CFG_FLASH_BASE
707 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
709 bd->bi_flashoffset = 0;
711 #else /* CFG_NO_FLASH */
713 bd->bi_flashsize = 0;
714 bd->bi_flashstart = 0;
715 bd->bi_flashoffset = 0;
716 #endif /* !CFG_NO_FLASH */
720 /* initialize higher level parts of CPU like time base and timers */
725 /* initialize malloc() area */
730 # if !defined(CFG_ENV_IS_IN_EEPROM)
736 /* relocate environment function pointers etc. */
740 * Fill in missing fields of bd_info.
741 * We do this here, where we have "normal" access to the
742 * environment; we used to do this still running from ROM,
743 * where had to use getenv_r(), which can be pretty slow when
744 * the environment is in EEPROM.
746 s = getenv ("ethaddr");
747 #if defined (CONFIG_MBX) || defined (CONFIG_RPXCLASSIC) || defined(CONFIG_IAD210)
749 board_get_enetaddr (bd->bi_enetaddr);
752 for (i = 0; i < 6; ++i) {
753 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
755 s = (*e) ? e + 1 : e;
758 if ((gd->board_type >> 16) == 2)
759 bd->bi_ethspeed = gd->board_type & 0xFFFF;
761 bd->bi_ethspeed = 0xFFFF;
765 load_sernum_ethaddr ();
768 #if defined(CFG_GT_6426x) || defined(CONFIG_PN62) || defined(CONFIG_PPCHAMELEONEVB) || \
769 defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS) || defined(CONFIG_440_GX)
770 /* handle the 2nd ethernet address */
772 s = getenv ("eth1addr");
774 for (i = 0; i < 6; ++i) {
775 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
777 s = (*e) ? e + 1 : e;
780 #if defined(CFG_GT_6426x) || defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS) || \
781 defined(CONFIG_440_GX)
782 /* handle the 3rd ethernet address */
784 s = getenv ("eth2addr");
785 #if defined(CONFIG_XPEDITE1K)
787 board_get_enetaddr(bd->bi_enet2addr);
790 for (i = 0; i < 6; ++i) {
791 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
793 s = (*e) ? e + 1 : e;
797 #if defined(CONFIG_440_GX)
798 /* handle 4th ethernet address */
799 s = getenv("eth3addr");
800 #if defined(CONFIG_XPEDITE1K)
802 board_get_enetaddr(bd->bi_enet3addr);
805 for (i = 0; i < 6; ++i) {
806 bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
808 s = (*e) ? e + 1 : e;
812 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
814 load_sernum_ethaddr ();
817 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
821 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx)
823 * Do pci configuration
828 /** leave this here (after malloc(), environment and PCI are working) **/
829 /* Initialize devices */
832 /* Initialize the jump table for applications */
835 /* Initialize the console (after the relocation and devices init) */
838 #if defined(CONFIG_CCM) || \
839 defined(CONFIG_COGENT) || \
840 defined(CONFIG_CPCI405) || \
841 defined(CONFIG_EVB64260) || \
842 defined(CONFIG_KUP4K) || \
843 defined(CONFIG_KUP4X) || \
844 defined(CONFIG_LWMON) || \
845 defined(CONFIG_PCU_E) || \
846 defined(CONFIG_W7O) || \
847 defined(CONFIG_MISC_INIT_R)
848 /* miscellaneous platform dependent initialisations */
853 if (bd->bi_ethspeed != 0xFFFF)
854 hermes_start_lxt980 ((int) bd->bi_ethspeed);
857 #if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
858 defined(CONFIG_CCM) || \
859 defined(CONFIG_ELPT860) || \
860 defined(CONFIG_EP8260) || \
861 defined(CONFIG_IP860) || \
862 defined(CONFIG_IVML24) || \
863 defined(CONFIG_IVMS8) || \
864 defined(CONFIG_LWMON) || \
865 defined(CONFIG_MPC8260ADS) || \
866 defined(CONFIG_MPC8266ADS) || \
867 defined(CONFIG_MPC8560ADS) || \
868 defined(CONFIG_PCU_E) || \
869 defined(CONFIG_RPXSUPER) || \
870 defined(CONFIG_SPD823TS) )
873 debug ("Reset Ethernet PHY\n");
877 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
883 debug ("U-Boot relocated to %08lx\n", dest_addr);
890 /* Must happen after interrupts are initialized since
891 * an irq handler gets installed
893 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
894 serial_buffered_init();
897 #ifdef CONFIG_STATUS_LED
898 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
905 /* Initialize from environment */
906 if ((s = getenv ("loadaddr")) != NULL) {
907 load_addr = simple_strtoul (s, NULL, 16);
909 #if (CONFIG_COMMANDS & CFG_CMD_NET)
910 if ((s = getenv ("bootfile")) != NULL) {
911 copy_filename (BootFile, s, sizeof (BootFile));
913 #endif /* CFG_CMD_NET */
917 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
923 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
929 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
932 nand_init(); /* go init the NAND */
935 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
942 post_run (NULL, POST_RAM | post_bootmode_get(0));
945 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
951 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
953 # ifdef CONFIG_IDE_8xx_PCCARD
959 #endif /* CFG_CMD_IDE */
961 #ifdef CONFIG_LAST_STAGE_INIT
964 * Some parts can be only initialized if all others (like
965 * Interrupts) are up and running (i.e. the PC-style ISA
971 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
976 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
978 * Export available size of memory for Linux,
979 * taking into account the protected RAM at top of memory
987 if ((s = getenv ("pram")) != NULL) {
988 pram = simple_strtoul (s, NULL, 10);
995 #ifdef CONFIG_LOGBUFFER
996 /* Also take the logbuffer into account (pram is in kB) */
997 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
999 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1000 setenv ("mem", memsz);
1004 #ifdef CONFIG_PS2KBD
1009 #ifdef CONFIG_MODEM_SUPPORT
1011 extern int do_mdm_init;
1012 do_mdm_init = gd->do_mdm_init;
1016 /* Initialization complete - start the monitor */
1018 /* main_loop() can return to retry autoboot, if so just run it again. */
1024 /* NOTREACHED - no way out of command loop except booting */
1029 puts ("### ERROR ### Please RESET the board ###\n");
1030 #ifdef CONFIG_SHOW_BOOT_PROGRESS
1031 show_boot_progress(-30);
1036 #ifdef CONFIG_MODEM_SUPPORT
1037 /* called from main loop (common/main.c) */
1038 extern void dbg(const char *fmt, ...);
1044 extern char console_buffer[];
1045 static inline void mdm_readline(char *buf, int bufsiz);
1046 extern void enable_putc(void);
1047 extern int hwflow_onoff(int);
1049 enable_putc(); /* enable serial_putc() */
1051 #ifdef CONFIG_HWFLOW
1052 init_str = getenv("mdm_flow_control");
1053 if (init_str && (strcmp(init_str, "rts/cts") == 0))
1060 sprintf(env_str, "mdm_init%d", i);
1061 if ((init_str = getenv(env_str)) != NULL) {
1062 serial_puts(init_str);
1065 mdm_readline(console_buffer, CFG_CBSIZE);
1066 dbg("ini%d: [%s]", i, console_buffer);
1068 if ((strcmp(console_buffer, "OK") == 0) ||
1069 (strcmp(console_buffer, "ERROR") == 0)) {
1070 dbg("ini%d: cmd done", i);
1072 } else /* in case we are originating call ... */
1073 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1074 dbg("ini%d: connect", i);
1079 break; /* no init string - stop modem init */
1086 /* final stage - wait for connect */
1087 for(;i > 1;) { /* if 'i' > 1 - wait for connection
1088 message from modem */
1089 mdm_readline(console_buffer, CFG_CBSIZE);
1090 dbg("ini_f: [%s]", console_buffer);
1091 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1092 dbg("ini_f: connected");
1100 /* 'inline' - We have to do it fast */
1101 static inline void mdm_readline(char *buf, int bufsiz)
1112 /* dbg("(%c)", c); */
1124 return; /* sanity check */
1134 #if 0 /* We could use plain global data, but the resulting code is bigger */
1136 * Pointer to initial global data area
1138 * Here we initialize it.
1140 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1141 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1142 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1145 /************************************************************************/