2 * (C) Copyright 2000-2010
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,
28 #include <stdio_dev.h>
38 #if defined(CONFIG_CMD_IDE)
41 #if defined(CONFIG_CMD_SCSI)
44 #if defined(CONFIG_CMD_KGDB)
47 #ifdef CONFIG_STATUS_LED
48 #include <status_led.h>
51 #ifdef CONFIG_GENERIC_MMC
55 #ifdef CONFIG_SYS_ALLOC_DPRAM
56 #if !defined(CONFIG_CPM2)
61 #if defined(CONFIG_BAB7xx)
65 #if defined(CONFIG_POST)
68 #if defined(CONFIG_LOGBUFFER)
71 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
72 #include <asm/cache.h>
78 #ifdef CONFIG_ADDR_MAP
86 #ifdef CONFIG_BITBANGMII
90 #ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
91 extern int update_flash_size (int flash_size);
94 #if defined(CONFIG_SC3)
95 extern void sc3_read_eeprom(void);
98 #if defined(CONFIG_CMD_DOC)
101 #if defined(CONFIG_HARD_I2C) || \
102 defined(CONFIG_SOFT_I2C)
108 static char *failed = "*** failed ***\n";
110 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
111 extern flash_info_t flash_info[];
114 #if defined(CONFIG_START_IDE)
115 extern int board_start_ide(void);
117 #include <environment.h>
119 DECLARE_GLOBAL_DATA_PTR;
121 #if !defined(CONFIG_SYS_MEM_TOP_HIDE)
122 #define CONFIG_SYS_MEM_TOP_HIDE 0
125 extern ulong __init_end;
127 ulong monitor_flash_len;
129 #if defined(CONFIG_CMD_BEDBUG)
130 #include <bedbug/type.h>
133 /************************************************************************
135 ************************************************************************
139 * All attempts to come up with a "common" initialization sequence
140 * that works for all boards and architectures failed: some of the
141 * requirements are just _too_ different. To get rid of the resulting
142 * mess of board dependend #ifdef'ed code we now make the whole
143 * initialization sequence configurable to the user.
145 * The requirements for any new initalization function is simple: it
146 * receives a pointer to the "global data" structure as it's only
147 * argument, and returns an integer return code, where 0 means
148 * "continue" and != 0 means "fatal error, hang the system".
150 typedef int (init_fnc_t) (void);
152 /************************************************************************
154 ************************************************************************
155 * Some of this code should be moved into the core functions,
156 * but let's get it working (again) first...
159 static int init_baudrate (void)
161 char tmp[64]; /* long enough for environment variables */
162 int i = getenv_f("baudrate", tmp, sizeof (tmp));
164 gd->baudrate = (i > 0)
165 ? (int) simple_strtoul (tmp, NULL, 10)
170 /***********************************************************************/
172 void __board_add_ram_info(int use_default)
174 /* please define platform specific board_add_ram_info() */
176 void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info")));
179 static int init_func_ram (void)
181 #ifdef CONFIG_BOARD_TYPES
182 int board_type = gd->board_type;
184 int board_type = 0; /* use dummy arg */
188 if ((gd->ram_size = initdram (board_type)) > 0) {
189 print_size (gd->ram_size, "");
190 board_add_ram_info(0);
198 /***********************************************************************/
200 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
201 static int init_func_i2c (void)
204 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
210 #if defined(CONFIG_HARD_SPI)
211 static int init_func_spi (void)
220 /***********************************************************************/
222 #if defined(CONFIG_WATCHDOG)
223 static int init_func_watchdog_init (void)
225 puts (" Watchdog enabled\n");
229 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
231 static int init_func_watchdog_reset (void)
236 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
238 # define INIT_FUNC_WATCHDOG_INIT /* undef */
239 # define INIT_FUNC_WATCHDOG_RESET /* undef */
240 #endif /* CONFIG_WATCHDOG */
242 /************************************************************************
243 * Initialization sequence *
244 ************************************************************************
247 init_fnc_t *init_sequence[] = {
248 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
251 #if defined(CONFIG_BOARD_EARLY_INIT_F)
254 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
255 get_clocks, /* get CPU and bus clocks (etc.) */
256 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
257 && !defined(CONFIG_TQM885D)
258 adjust_sdram_tbs_8xx,
262 #ifdef CONFIG_SYS_ALLOC_DPRAM
263 #if !defined(CONFIG_CPM2)
267 #if defined(CONFIG_BOARD_POSTCLK_INIT)
271 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
272 get_clocks_866, /* get CPU and bus clocks according to the environment variable */
273 sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
280 #if defined(CONFIG_8260)
283 #endif /* CONFIG_8260 */
284 #if defined(CONFIG_MPC83xx)
288 #if defined(CONFIG_MPC5xxx)
290 #endif /* CONFIG_MPC5xxx */
291 #if defined(CONFIG_MPC8220)
295 INIT_FUNC_WATCHDOG_INIT
296 #if defined(CONFIG_MISC_INIT_F)
299 INIT_FUNC_WATCHDOG_RESET
300 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
303 #if defined(CONFIG_HARD_SPI)
309 INIT_FUNC_WATCHDOG_RESET
311 #if defined(CONFIG_SYS_DRAM_TEST)
313 #endif /* CONFIG_SYS_DRAM_TEST */
314 INIT_FUNC_WATCHDOG_RESET
316 NULL, /* Terminate this list */
319 ulong get_effective_memsize(void)
321 #ifndef CONFIG_VERY_BIG_RAM
324 /* limit stack to what we can reasonable map */
325 return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
326 CONFIG_MAX_MEM_MAPPED : gd->ram_size);
330 /************************************************************************
332 * This is the first part of the initialization sequence that is
333 * implemented in C, but still running from ROM.
335 * The main purpose is to provide a (serial) console interface as
336 * soon as possible (so we can see any error messages), and to
337 * initialize the RAM so that we can relocate the monitor code to
340 * Be aware of the restrictions: global data is read-only, BSS is not
341 * initialized, and stack space is limited to a few kB.
343 ************************************************************************
346 #ifdef CONFIG_LOGBUFFER
347 unsigned long logbuffer_base(void)
349 return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
353 void board_init_f (ulong bootflag)
356 ulong len, addr, addr_sp;
359 init_fnc_t **init_fnc_ptr;
363 uchar tmp[64]; /* long enough for environment variables */
366 /* Pointer is writable since we allocated a register for it */
367 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
368 /* compiler optimization barrier needed for GCC >= 3.4 */
369 __asm__ __volatile__("": : :"memory");
371 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \
372 !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \
373 !defined(CONFIG_MPC86xx)
374 /* Clear initial global data */
375 memset ((void *) gd, 0, sizeof (gd_t));
378 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
379 if ((*init_fnc_ptr) () != 0) {
385 * Now that we have DRAM mapped and working, we can
386 * relocate the code and continue running from DRAM.
388 * Reserve memory at end of RAM for (top down in that order):
389 * - area that won't get touched by U-Boot and Linux (optional)
390 * - kernel log buffer
394 * - board info struct
396 len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
399 * Subtract specified amount of memory to hide so that it won't
400 * get "touched" at all by U-Boot. By fixing up gd->ram_size
401 * the Linux kernel should now get passed the now "corrected"
402 * memory size and won't touch it either. This should work
403 * for arch/ppc and arch/powerpc. Only Linux board ports in
404 * arch/powerpc with bootwrapper support, that recalculate the
405 * memory size from the SDRAM controller setup will have to
408 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
410 addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
412 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
414 * We need to make sure the location we intend to put secondary core
415 * boot code is reserved and not used by any part of u-boot
417 if (addr > determine_mp_bootpg()) {
418 addr = determine_mp_bootpg();
419 debug ("Reserving MP boot page to %08lx\n", addr);
423 #ifdef CONFIG_LOGBUFFER
424 #ifndef CONFIG_ALT_LB_ADDR
425 /* reserve kernel log buffer */
426 addr -= (LOGBUFF_RESERVE);
427 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
433 * reserve protected RAM
435 i = getenv_f("pram", (char *)tmp, sizeof (tmp));
436 reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
437 addr -= (reg << 10); /* size is in kB */
438 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
439 #endif /* CONFIG_PRAM */
441 /* round down to next 4 kB limit */
443 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
446 /* reserve memory for LCD display (always full pages) */
447 addr = lcd_setmem (addr);
449 #endif /* CONFIG_LCD */
451 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
452 /* reserve memory for video display (always full pages) */
453 addr = video_setmem (addr);
455 #endif /* CONFIG_VIDEO */
458 * reserve memory for U-Boot code, data & bss
459 * round down to next 4 kB limit
464 /* round down to next 64 kB limit so that IVPR stays aligned */
465 addr &= ~(65536 - 1);
468 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
471 * reserve memory for malloc() arena
473 addr_sp = addr - TOTAL_MALLOC_LEN;
474 debug ("Reserving %dk for malloc() at: %08lx\n",
475 TOTAL_MALLOC_LEN >> 10, addr_sp);
478 * (permanently) allocate a Board Info struct
479 * and a permanent copy of the "global" data
481 addr_sp -= sizeof (bd_t);
482 bd = (bd_t *) addr_sp;
483 memset(bd, 0, sizeof(bd_t));
485 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
486 sizeof (bd_t), addr_sp);
487 addr_sp -= sizeof (gd_t);
488 id = (gd_t *) addr_sp;
489 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
490 sizeof (gd_t), addr_sp);
493 * Finally, we set up a new (bigger) stack.
495 * Leave some safety gap for SP, force alignment on 16 byte boundary
496 * Clear initial stack frame
500 s = (ulong *)addr_sp;
504 debug ("Stack Pointer at: %08lx\n", addr_sp);
507 * Save local variables to board info struct
510 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
511 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
513 #ifdef CONFIG_SYS_SRAM_BASE
514 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM memory */
515 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM memory */
518 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
519 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
520 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
522 #if defined(CONFIG_MPC5xxx)
523 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
525 #if defined(CONFIG_MPC83xx)
526 bd->bi_immrbar = CONFIG_SYS_IMMR;
528 #if defined(CONFIG_MPC8220)
529 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
530 bd->bi_inpfreq = gd->inp_clk;
531 bd->bi_pcifreq = gd->pci_clk;
532 bd->bi_vcofreq = gd->vco_clk;
533 bd->bi_pevfreq = gd->pev_clk;
534 bd->bi_flbfreq = gd->flb_clk;
536 /* store bootparam to sram (backward compatible), here? */
538 u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE;
539 *sram++ = gd->ram_size;
540 *sram++ = gd->bus_clk;
541 *sram++ = gd->inp_clk;
542 *sram++ = gd->cpu_clk;
543 *sram++ = gd->vco_clk;
544 *sram++ = gd->flb_clk;
545 *sram++ = 0xb8c3ba11; /* boot signature */
549 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
552 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
553 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
554 #if defined(CONFIG_CPM2)
555 bd->bi_cpmfreq = gd->cpm_clk;
556 bd->bi_brgfreq = gd->brg_clk;
557 bd->bi_sccfreq = gd->scc_clk;
558 bd->bi_vco = gd->vco_out;
559 #endif /* CONFIG_CPM2 */
560 #if defined(CONFIG_MPC512X)
561 bd->bi_ipsfreq = gd->ips_clk;
562 #endif /* CONFIG_MPC512X */
563 #if defined(CONFIG_MPC5xxx)
564 bd->bi_ipbfreq = gd->ipb_clk;
565 bd->bi_pcifreq = gd->pci_clk;
566 #endif /* CONFIG_MPC5xxx */
567 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
569 #ifdef CONFIG_SYS_EXTBDINFO
570 strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
571 strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
573 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
574 bd->bi_plb_busfreq = gd->bus_clk;
575 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
576 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
577 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
578 bd->bi_pci_busfreq = get_PCI_freq ();
579 bd->bi_opbfreq = get_OPB_freq ();
580 #elif defined(CONFIG_XILINX_405)
581 bd->bi_pci_busfreq = get_PCI_freq ();
585 debug ("New Stack Pointer is: %08lx\n", addr_sp);
590 post_bootmode_init();
591 post_run (NULL, POST_ROM | post_bootmode_get(0));
596 gd->relocaddr = addr; /* Record relocation address, useful for debug */
598 memcpy (id, (void *)gd, sizeof (gd_t));
600 relocate_code (addr_sp, id, addr);
602 /* NOTREACHED - relocate_code() does not return */
605 /************************************************************************
607 * This is the next part if the initialization sequence: we are now
608 * running from RAM and have a "normal" C environment, i. e. global
609 * data can be written, BSS has been cleared, the stack size in not
610 * that critical any more, etc.
612 ************************************************************************
614 void board_init_r (gd_t *id, ulong dest_addr)
620 #ifndef CONFIG_SYS_NO_FLASH
624 gd = id; /* initialize RAM version of global data */
627 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
629 /* The Malloc area is immediately below the monitor copy in DRAM */
630 malloc_start = dest_addr - TOTAL_MALLOC_LEN;
632 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
634 * The gd->cpu pointer is set to an address in flash before relocation.
635 * We need to update it to point to the same CPU entry in RAM.
637 gd->cpu += dest_addr - CONFIG_SYS_MONITOR_BASE;
640 #ifdef CONFIG_SERIAL_MULTI
644 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
649 * Setup trap handlers
651 trap_init (dest_addr);
653 #ifdef CONFIG_ADDR_MAP
657 #if defined(CONFIG_BOARD_EARLY_INIT_R)
658 board_early_init_r ();
661 monitor_flash_len = (ulong)&__init_end - dest_addr;
665 #ifdef CONFIG_LOGBUFFER
666 logbuff_init_ptrs ();
669 post_output_backlog ();
674 #if defined(CONFIG_SYS_DELAYED_ICACHE)
675 icache_enable (); /* it's time to enable the instruction cache */
678 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
679 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
682 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
684 * Do early PCI configuration _before_ the flash gets initialised,
685 * because PCU ressources are crucial for flash access on some boards.
689 #if defined(CONFIG_BAB7xx)
691 * Initialise the ISA bridge
693 initialise_w83c553f ();
696 asm ("sync ; isync");
698 mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN);
700 #if !defined(CONFIG_SYS_NO_FLASH)
703 if ((flash_size = flash_init ()) > 0) {
704 # ifdef CONFIG_SYS_FLASH_CHECKSUM
705 print_size (flash_size, "");
707 * Compute and print flash CRC if flashchecksum is set to 'y'
709 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
711 s = getenv ("flashchecksum");
712 if (s && (*s == 'y')) {
713 printf (" CRC: %08X",
714 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
718 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
719 print_size (flash_size, "\n");
720 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
726 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
727 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
729 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
730 /* Make a update of the Memctrl. */
731 update_flash_size (flash_size);
735 # if defined(CONFIG_OXC) || defined(CONFIG_RMU)
736 /* flash mapped at end of memory map */
737 bd->bi_flashoffset = TEXT_BASE + flash_size;
738 # elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
739 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
741 #endif /* !CONFIG_SYS_NO_FLASH */
745 /* initialize higher level parts of CPU like time base and timers */
751 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
757 #if defined(CONFIG_CMD_NAND)
760 nand_init(); /* go init the NAND */
763 #ifdef CONFIG_GENERIC_MMC
765 * MMC initialization is called before relocating env.
766 * Thus It is required that operations like pin multiplexer
767 * be put in board_init.
774 /* relocate environment function pointers etc. */
778 * Fill in missing fields of bd_info.
779 * We do this here, where we have "normal" access to the
780 * environment; we used to do this still running from ROM,
781 * where had to use getenv_f(), which can be pretty slow when
782 * the environment is in EEPROM.
785 #if defined(CONFIG_SYS_EXTBDINFO)
786 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
787 #if defined(CONFIG_I2CFAST)
789 * set bi_iic_fast for linux taking environment variable
790 * "i2cfast" into account
793 char *s = getenv ("i2cfast");
794 if (s && ((*s == 'y') || (*s == 'Y'))) {
795 bd->bi_iic_fast[0] = 1;
796 bd->bi_iic_fast[1] = 1;
799 #endif /* CONFIG_I2CFAST */
800 #endif /* CONFIG_405GP, CONFIG_405EP */
801 #endif /* CONFIG_SYS_EXTBDINFO */
803 #if defined(CONFIG_SC3)
807 #if defined (CONFIG_ID_EEPROM) || defined (CONFIG_SYS_I2C_MAC_OFFSET)
808 mac_read_from_eeprom();
812 if ((gd->board_type >> 16) == 2)
813 bd->bi_ethspeed = gd->board_type & 0xFFFF;
815 bd->bi_ethspeed = 0xFFFF;
818 #ifdef CONFIG_CMD_NET
819 /* kept around for legacy kernels only ... ignore the next section */
820 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
821 #ifdef CONFIG_HAS_ETH1
822 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
824 #ifdef CONFIG_HAS_ETH2
825 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
827 #ifdef CONFIG_HAS_ETH3
828 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
830 #ifdef CONFIG_HAS_ETH4
831 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
833 #ifdef CONFIG_HAS_ETH5
834 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
836 #endif /* CONFIG_CMD_NET */
839 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
843 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
845 * Do pci configuration
850 /** leave this here (after malloc(), environment and PCI are working) **/
851 /* Initialize stdio devices */
854 /* Initialize the jump table for applications */
857 #if defined(CONFIG_API)
862 /* Initialize the console (after the relocation and devices init) */
865 #if defined(CONFIG_MISC_INIT_R)
866 /* miscellaneous platform dependent initialisations */
871 if (bd->bi_ethspeed != 0xFFFF)
872 hermes_start_lxt980 ((int) bd->bi_ethspeed);
875 #if defined(CONFIG_CMD_KGDB)
881 debug ("U-Boot relocated to %08lx\n", dest_addr);
888 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
889 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
896 /* Initialize from environment */
897 if ((s = getenv ("loadaddr")) != NULL) {
898 load_addr = simple_strtoul (s, NULL, 16);
900 #if defined(CONFIG_CMD_NET)
901 if ((s = getenv ("bootfile")) != NULL) {
902 copy_filename (BootFile, s, sizeof (BootFile));
908 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
911 #if defined(CONFIG_CMD_SCSI)
917 #if defined(CONFIG_CMD_DOC)
923 #ifdef CONFIG_BITBANGMII
926 #if defined(CONFIG_CMD_NET)
927 #if defined(CONFIG_NET_MULTI)
934 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
936 debug ("Reset Ethernet PHY\n");
941 post_run (NULL, POST_RAM | post_bootmode_get(0));
944 #if defined(CONFIG_CMD_PCMCIA) \
945 && !defined(CONFIG_CMD_IDE)
951 #if defined(CONFIG_CMD_IDE)
953 # ifdef CONFIG_IDE_8xx_PCCARD
958 #if defined(CONFIG_START_IDE)
959 if (board_start_ide())
966 #ifdef CONFIG_LAST_STAGE_INIT
969 * Some parts can be only initialized if all others (like
970 * Interrupts) are up and running (i.e. the PC-style ISA
976 #if defined(CONFIG_CMD_BEDBUG)
981 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
983 * Export available size of memory for Linux,
984 * taking into account the protected RAM at top of memory
992 if ((s = getenv ("pram")) != NULL) {
993 pram = simple_strtoul (s, NULL, 10);
1000 #ifdef CONFIG_LOGBUFFER
1001 #ifndef CONFIG_ALT_LB_ADDR
1002 /* Also take the logbuffer into account (pram is in kB) */
1003 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1006 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1007 setenv ("mem", (char *)memsz);
1011 #ifdef CONFIG_PS2KBD
1016 #ifdef CONFIG_MODEM_SUPPORT
1018 extern int do_mdm_init;
1019 do_mdm_init = gd->do_mdm_init;
1023 /* Initialization complete - start the monitor */
1025 /* main_loop() can return to retry autoboot, if so just run it again. */
1031 /* NOTREACHED - no way out of command loop except booting */
1036 puts ("### ERROR ### Please RESET the board ###\n");
1037 show_boot_progress(-30);
1042 #if 0 /* We could use plain global data, but the resulting code is bigger */
1044 * Pointer to initial global data area
1046 * Here we initialize it.
1048 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1049 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1050 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
1053 /************************************************************************/