2 * (C) Copyright 2000-2006
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_SYS_UPDATE_FLASH_SIZE
87 extern int update_flash_size (int flash_size);
90 #if defined(CONFIG_SC3)
91 extern void sc3_read_eeprom(void);
94 #if defined(CONFIG_CMD_DOC)
97 #if defined(CONFIG_HARD_I2C) || \
98 defined(CONFIG_SOFT_I2C)
104 static char *failed = "*** failed ***\n";
106 #if defined(CONFIG_OXC) || defined(CONFIG_PCU_E) || defined(CONFIG_RMU)
107 extern flash_info_t flash_info[];
110 #if defined(CONFIG_START_IDE)
111 extern int board_start_ide(void);
113 #include <environment.h>
115 DECLARE_GLOBAL_DATA_PTR;
117 #if defined(CONFIG_ENV_IS_EMBEDDED)
118 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
119 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
120 (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
121 defined(CONFIG_ENV_IS_IN_NVRAM)
122 #define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
124 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
127 #if !defined(CONFIG_SYS_MEM_TOP_HIDE)
128 #define CONFIG_SYS_MEM_TOP_HIDE 0
131 extern ulong __init_end;
133 ulong monitor_flash_len;
135 #if defined(CONFIG_CMD_BEDBUG)
136 #include <bedbug/type.h>
140 * Begin and End of memory area for malloc(), and current "brk"
142 static ulong mem_malloc_start = 0;
143 static ulong mem_malloc_end = 0;
144 static ulong mem_malloc_brk = 0;
146 /************************************************************************
148 ************************************************************************
152 * The Malloc area is immediately below the monitor copy in DRAM
154 static void mem_malloc_init (void)
156 #if !defined(CONFIG_RELOC_FIXUP_WORKS)
157 mem_malloc_end = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
159 mem_malloc_start = mem_malloc_end - TOTAL_MALLOC_LEN;
160 mem_malloc_brk = mem_malloc_start;
162 memset ((void *) mem_malloc_start,
164 mem_malloc_end - mem_malloc_start);
167 void *sbrk (ptrdiff_t increment)
169 ulong old = mem_malloc_brk;
170 ulong new = old + increment;
172 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
175 mem_malloc_brk = new;
176 return ((void *) old);
180 * All attempts to come up with a "common" initialization sequence
181 * that works for all boards and architectures failed: some of the
182 * requirements are just _too_ different. To get rid of the resulting
183 * mess of board dependend #ifdef'ed code we now make the whole
184 * initialization sequence configurable to the user.
186 * The requirements for any new initalization function is simple: it
187 * receives a pointer to the "global data" structure as it's only
188 * argument, and returns an integer return code, where 0 means
189 * "continue" and != 0 means "fatal error, hang the system".
191 typedef int (init_fnc_t) (void);
193 /************************************************************************
195 ************************************************************************
196 * Some of this code should be moved into the core functions,
197 * but let's get it working (again) first...
200 static int init_baudrate (void)
202 char tmp[64]; /* long enough for environment variables */
203 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
205 gd->baudrate = (i > 0)
206 ? (int) simple_strtoul (tmp, NULL, 10)
211 /***********************************************************************/
213 void __board_add_ram_info(int use_default)
215 /* please define platform specific board_add_ram_info() */
217 void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info")));
220 static int init_func_ram (void)
222 #ifdef CONFIG_BOARD_TYPES
223 int board_type = gd->board_type;
225 int board_type = 0; /* use dummy arg */
229 if ((gd->ram_size = initdram (board_type)) > 0) {
230 print_size (gd->ram_size, "");
231 board_add_ram_info(0);
239 /***********************************************************************/
241 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
242 static int init_func_i2c (void)
245 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
251 #if defined(CONFIG_HARD_SPI)
252 static int init_func_spi (void)
261 /***********************************************************************/
263 #if defined(CONFIG_WATCHDOG)
264 static int init_func_watchdog_init (void)
266 puts (" Watchdog enabled\n");
270 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
272 static int init_func_watchdog_reset (void)
277 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
279 # define INIT_FUNC_WATCHDOG_INIT /* undef */
280 # define INIT_FUNC_WATCHDOG_RESET /* undef */
281 #endif /* CONFIG_WATCHDOG */
283 /************************************************************************
284 * Initialization sequence *
285 ************************************************************************
288 init_fnc_t *init_sequence[] = {
290 #if defined(CONFIG_BOARD_EARLY_INIT_F)
294 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
297 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
298 get_clocks, /* get CPU and bus clocks (etc.) */
299 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
300 && !defined(CONFIG_TQM885D)
301 adjust_sdram_tbs_8xx,
305 #ifdef CONFIG_SYS_ALLOC_DPRAM
306 #if !defined(CONFIG_CPM2)
310 #if defined(CONFIG_BOARD_POSTCLK_INIT)
314 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
315 get_clocks_866, /* get CPU and bus clocks according to the environment variable */
316 sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
323 #if defined(CONFIG_8260)
326 #endif /* CONFIG_8260 */
327 #if defined(CONFIG_MPC83xx)
331 #if defined(CONFIG_MPC5xxx)
333 #endif /* CONFIG_MPC5xxx */
334 #if defined(CONFIG_MPC8220)
338 INIT_FUNC_WATCHDOG_INIT
339 #if defined(CONFIG_MISC_INIT_F)
342 INIT_FUNC_WATCHDOG_RESET
343 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
346 #if defined(CONFIG_HARD_SPI)
352 INIT_FUNC_WATCHDOG_RESET
354 #if defined(CONFIG_SYS_DRAM_TEST)
356 #endif /* CONFIG_SYS_DRAM_TEST */
357 INIT_FUNC_WATCHDOG_RESET
359 NULL, /* Terminate this list */
362 ulong get_effective_memsize(void)
364 #ifndef CONFIG_VERY_BIG_RAM
367 /* limit stack to what we can reasonable map */
368 return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
369 CONFIG_MAX_MEM_MAPPED : gd->ram_size);
373 /************************************************************************
375 * This is the first part of the initialization sequence that is
376 * implemented in C, but still running from ROM.
378 * The main purpose is to provide a (serial) console interface as
379 * soon as possible (so we can see any error messages), and to
380 * initialize the RAM so that we can relocate the monitor code to
383 * Be aware of the restrictions: global data is read-only, BSS is not
384 * initialized, and stack space is limited to a few kB.
386 ************************************************************************
389 #ifdef CONFIG_LOGBUFFER
390 unsigned long logbuffer_base(void)
392 return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
396 void board_init_f (ulong bootflag)
399 ulong len, addr, addr_sp;
402 init_fnc_t **init_fnc_ptr;
406 uchar tmp[64]; /* long enough for environment variables */
409 /* Pointer is writable since we allocated a register for it */
410 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
411 /* compiler optimization barrier needed for GCC >= 3.4 */
412 __asm__ __volatile__("": : :"memory");
414 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC83xx) && \
415 !defined(CONFIG_MPC85xx) && !defined(CONFIG_MPC86xx)
416 /* Clear initial global data */
417 memset ((void *) gd, 0, sizeof (gd_t));
420 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
421 if ((*init_fnc_ptr) () != 0) {
427 * Now that we have DRAM mapped and working, we can
428 * relocate the code and continue running from DRAM.
430 * Reserve memory at end of RAM for (top down in that order):
431 * - area that won't get touched by U-Boot and Linux (optional)
432 * - kernel log buffer
436 * - board info struct
438 len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
441 * Subtract specified amount of memory to hide so that it won't
442 * get "touched" at all by U-Boot. By fixing up gd->ram_size
443 * the Linux kernel should now get passed the now "corrected"
444 * memory size and won't touch it either. This should work
445 * for arch/ppc and arch/powerpc. Only Linux board ports in
446 * arch/powerpc with bootwrapper support, that recalculate the
447 * memory size from the SDRAM controller setup will have to
450 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
452 addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
454 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
456 * We need to make sure the location we intend to put secondary core
457 * boot code is reserved and not used by any part of u-boot
459 if (addr > determine_mp_bootpg()) {
460 addr = determine_mp_bootpg();
461 debug ("Reserving MP boot page to %08lx\n", addr);
465 #ifdef CONFIG_LOGBUFFER
466 #ifndef CONFIG_ALT_LB_ADDR
467 /* reserve kernel log buffer */
468 addr -= (LOGBUFF_RESERVE);
469 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
475 * reserve protected RAM
477 i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
478 reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
479 addr -= (reg << 10); /* size is in kB */
480 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
481 #endif /* CONFIG_PRAM */
483 /* round down to next 4 kB limit */
485 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
488 /* reserve memory for LCD display (always full pages) */
489 addr = lcd_setmem (addr);
491 #endif /* CONFIG_LCD */
493 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
494 /* reserve memory for video display (always full pages) */
495 addr = video_setmem (addr);
497 #endif /* CONFIG_VIDEO */
500 * reserve memory for U-Boot code, data & bss
501 * round down to next 4 kB limit
506 /* round down to next 64 kB limit so that IVPR stays aligned */
507 addr &= ~(65536 - 1);
510 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
512 #ifdef CONFIG_AMIGAONEG3SE
513 gd->relocaddr = addr;
517 * reserve memory for malloc() arena
519 addr_sp = addr - TOTAL_MALLOC_LEN;
520 debug ("Reserving %dk for malloc() at: %08lx\n",
521 TOTAL_MALLOC_LEN >> 10, addr_sp);
524 * (permanently) allocate a Board Info struct
525 * and a permanent copy of the "global" data
527 addr_sp -= sizeof (bd_t);
528 bd = (bd_t *) addr_sp;
530 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
531 sizeof (bd_t), addr_sp);
532 addr_sp -= sizeof (gd_t);
533 id = (gd_t *) addr_sp;
534 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
535 sizeof (gd_t), addr_sp);
538 * Finally, we set up a new (bigger) stack.
540 * Leave some safety gap for SP, force alignment on 16 byte boundary
541 * Clear initial stack frame
545 s = (ulong *)addr_sp;
549 debug ("Stack Pointer at: %08lx\n", addr_sp);
552 * Save local variables to board info struct
555 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
556 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
559 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
560 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
561 #elif defined CONFIG_MPC8220
562 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM memory */
563 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM memory */
565 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
566 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
569 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
570 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
571 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
573 #if defined(CONFIG_MPC5xxx)
574 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
576 #if defined(CONFIG_MPC83xx)
577 bd->bi_immrbar = CONFIG_SYS_IMMR;
579 #if defined(CONFIG_MPC8220)
580 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
581 bd->bi_inpfreq = gd->inp_clk;
582 bd->bi_pcifreq = gd->pci_clk;
583 bd->bi_vcofreq = gd->vco_clk;
584 bd->bi_pevfreq = gd->pev_clk;
585 bd->bi_flbfreq = gd->flb_clk;
587 /* store bootparam to sram (backward compatible), here? */
589 u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE;
590 *sram++ = gd->ram_size;
591 *sram++ = gd->bus_clk;
592 *sram++ = gd->inp_clk;
593 *sram++ = gd->cpu_clk;
594 *sram++ = gd->vco_clk;
595 *sram++ = gd->flb_clk;
596 *sram++ = 0xb8c3ba11; /* boot signature */
600 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
603 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
604 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
605 #if defined(CONFIG_CPM2)
606 bd->bi_cpmfreq = gd->cpm_clk;
607 bd->bi_brgfreq = gd->brg_clk;
608 bd->bi_sccfreq = gd->scc_clk;
609 bd->bi_vco = gd->vco_out;
610 #endif /* CONFIG_CPM2 */
611 #if defined(CONFIG_MPC512X)
612 bd->bi_ipsfreq = gd->ips_clk;
613 #endif /* CONFIG_MPC512X */
614 #if defined(CONFIG_MPC5xxx)
615 bd->bi_ipbfreq = gd->ipb_clk;
616 bd->bi_pcifreq = gd->pci_clk;
617 #endif /* CONFIG_MPC5xxx */
618 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
620 #ifdef CONFIG_SYS_EXTBDINFO
621 strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
622 strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
624 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
625 bd->bi_plb_busfreq = gd->bus_clk;
626 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
627 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
628 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
629 bd->bi_pci_busfreq = get_PCI_freq ();
630 bd->bi_opbfreq = get_OPB_freq ();
631 #elif defined(CONFIG_XILINX_405)
632 bd->bi_pci_busfreq = get_PCI_freq ();
636 debug ("New Stack Pointer is: %08lx\n", addr_sp);
641 post_bootmode_init();
642 post_run (NULL, POST_ROM | post_bootmode_get(0));
647 memcpy (id, (void *)gd, sizeof (gd_t));
649 relocate_code (addr_sp, id, addr);
651 /* NOTREACHED - relocate_code() does not return */
654 /************************************************************************
656 * This is the next part if the initialization sequence: we are now
657 * running from RAM and have a "normal" C environment, i. e. global
658 * data can be written, BSS has been cleared, the stack size in not
659 * that critical any more, etc.
661 ************************************************************************
663 void board_init_r (gd_t *id, ulong dest_addr)
668 extern void malloc_bin_reloc (void);
669 #ifndef CONFIG_ENV_IS_NOWHERE
670 extern char * env_name_spec;
673 #ifndef CONFIG_SYS_NO_FLASH
677 gd = id; /* initialize RAM version of global data */
680 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
682 #if defined(CONFIG_RELOC_FIXUP_WORKS)
684 mem_malloc_end = dest_addr;
686 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
689 #ifdef CONFIG_SERIAL_MULTI
693 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
698 * Setup trap handlers
700 trap_init (dest_addr);
702 #ifdef CONFIG_ADDR_MAP
706 #if defined(CONFIG_BOARD_EARLY_INIT_R)
707 board_early_init_r ();
710 monitor_flash_len = (ulong)&__init_end - dest_addr;
713 * We have to relocate the command table manually
715 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
717 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
719 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
720 cmdtp->name, (ulong) (cmdtp->cmd), addr);
723 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
725 addr = (ulong)(cmdtp->name) + gd->reloc_off;
726 cmdtp->name = (char *)addr;
729 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
730 cmdtp->usage = (char *)addr;
732 #ifdef CONFIG_SYS_LONGHELP
734 addr = (ulong)(cmdtp->help) + gd->reloc_off;
735 cmdtp->help = (char *)addr;
739 /* there are some other pointer constants we must deal with */
740 #ifndef CONFIG_ENV_IS_NOWHERE
741 env_name_spec += gd->reloc_off;
746 #ifdef CONFIG_LOGBUFFER
747 logbuff_init_ptrs ();
750 post_output_backlog ();
756 #if defined(CONFIG_SYS_DELAYED_ICACHE) || defined(CONFIG_MPC83xx)
757 icache_enable (); /* it's time to enable the instruction cache */
760 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
761 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
764 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
766 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
767 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
772 #if defined(CONFIG_BAB7xx)
774 * Initialise the ISA bridge
776 initialise_w83c553f ();
779 asm ("sync ; isync");
781 /* initialize malloc() area */
785 #if !defined(CONFIG_SYS_NO_FLASH)
788 if ((flash_size = flash_init ()) > 0) {
789 # ifdef CONFIG_SYS_FLASH_CHECKSUM
790 print_size (flash_size, "");
792 * Compute and print flash CRC if flashchecksum is set to 'y'
794 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
796 s = getenv ("flashchecksum");
797 if (s && (*s == 'y')) {
798 printf (" CRC: %08X",
799 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
803 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
804 print_size (flash_size, "\n");
805 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
811 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
812 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
814 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
815 /* Make a update of the Memctrl. */
816 update_flash_size (flash_size);
820 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
821 /* flash mapped at end of memory map */
822 bd->bi_flashoffset = TEXT_BASE + flash_size;
823 # elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
824 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
826 bd->bi_flashoffset = 0;
828 #else /* CONFIG_SYS_NO_FLASH */
830 bd->bi_flashsize = 0;
831 bd->bi_flashstart = 0;
832 bd->bi_flashoffset = 0;
833 #endif /* !CONFIG_SYS_NO_FLASH */
837 /* initialize higher level parts of CPU like time base and timers */
843 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
849 #if defined(CONFIG_CMD_NAND)
852 nand_init(); /* go init the NAND */
855 /* relocate environment function pointers etc. */
859 * Fill in missing fields of bd_info.
860 * We do this here, where we have "normal" access to the
861 * environment; we used to do this still running from ROM,
862 * where had to use getenv_r(), which can be pretty slow when
863 * the environment is in EEPROM.
866 #if defined(CONFIG_SYS_EXTBDINFO)
867 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
868 #if defined(CONFIG_I2CFAST)
870 * set bi_iic_fast for linux taking environment variable
871 * "i2cfast" into account
874 char *s = getenv ("i2cfast");
875 if (s && ((*s == 'y') || (*s == 'Y'))) {
876 bd->bi_iic_fast[0] = 1;
877 bd->bi_iic_fast[1] = 1;
879 bd->bi_iic_fast[0] = 0;
880 bd->bi_iic_fast[1] = 0;
884 bd->bi_iic_fast[0] = 0;
885 bd->bi_iic_fast[1] = 0;
886 #endif /* CONFIG_I2CFAST */
887 #endif /* CONFIG_405GP, CONFIG_405EP */
888 #endif /* CONFIG_SYS_EXTBDINFO */
890 #if defined(CONFIG_SC3)
894 #if defined (CONFIG_ID_EEPROM) || defined (CONFIG_SYS_I2C_MAC_OFFSET)
895 mac_read_from_eeprom();
899 if ((gd->board_type >> 16) == 2)
900 bd->bi_ethspeed = gd->board_type & 0xFFFF;
902 bd->bi_ethspeed = 0xFFFF;
905 #ifdef CONFIG_CMD_NET
906 /* kept around for legacy kernels only ... ignore the next section */
907 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
908 #ifdef CONFIG_HAS_ETH1
909 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
911 #ifdef CONFIG_HAS_ETH2
912 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
914 #ifdef CONFIG_HAS_ETH3
915 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
917 #ifdef CONFIG_HAS_ETH4
918 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
920 #ifdef CONFIG_HAS_ETH5
921 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
923 #endif /* CONFIG_CMD_NET */
926 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
930 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45)
932 * Do pci configuration
937 /** leave this here (after malloc(), environment and PCI are working) **/
938 /* Initialize stdio devices */
941 /* Initialize the jump table for applications */
944 #if defined(CONFIG_API)
949 /* Initialize the console (after the relocation and devices init) */
952 #if defined(CONFIG_CCM) || \
953 defined(CONFIG_COGENT) || \
954 defined(CONFIG_CPCI405) || \
955 defined(CONFIG_EVB64260) || \
956 defined(CONFIG_KUP4K) || \
957 defined(CONFIG_KUP4X) || \
958 defined(CONFIG_LWMON) || \
959 defined(CONFIG_PCU_E) || \
960 defined(CONFIG_SC3) || \
961 defined(CONFIG_W7O) || \
962 defined(CONFIG_MISC_INIT_R)
963 /* miscellaneous platform dependent initialisations */
968 if (bd->bi_ethspeed != 0xFFFF)
969 hermes_start_lxt980 ((int) bd->bi_ethspeed);
972 #if defined(CONFIG_CMD_KGDB)
978 debug ("U-Boot relocated to %08lx\n", dest_addr);
985 /* Must happen after interrupts are initialized since
986 * an irq handler gets installed
988 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
989 serial_buffered_init();
992 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
993 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
1000 /* Initialize from environment */
1001 if ((s = getenv ("loadaddr")) != NULL) {
1002 load_addr = simple_strtoul (s, NULL, 16);
1004 #if defined(CONFIG_CMD_NET)
1005 if ((s = getenv ("bootfile")) != NULL) {
1006 copy_filename (BootFile, s, sizeof (BootFile));
1012 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
1015 #if defined(CONFIG_CMD_SCSI)
1021 #ifdef CONFIG_GENERIC_MMC
1024 mmc_initialize (bd);
1027 #if defined(CONFIG_CMD_DOC)
1033 #if defined(CONFIG_CMD_NET)
1034 #if defined(CONFIG_NET_MULTI)
1038 eth_initialize (bd);
1041 #if defined(CONFIG_CMD_NET) && ( \
1042 defined(CONFIG_CCM) || \
1043 defined(CONFIG_ELPT860) || \
1044 defined(CONFIG_EP8260) || \
1045 defined(CONFIG_IP860) || \
1046 defined(CONFIG_IVML24) || \
1047 defined(CONFIG_IVMS8) || \
1048 defined(CONFIG_MPC8260ADS) || \
1049 defined(CONFIG_MPC8266ADS) || \
1050 defined(CONFIG_MPC8560ADS) || \
1051 defined(CONFIG_PCU_E) || \
1052 defined(CONFIG_RPXSUPER) || \
1053 defined(CONFIG_STXGP3) || \
1054 defined(CONFIG_SPD823TS) || \
1055 defined(CONFIG_RESET_PHY_R) )
1058 debug ("Reset Ethernet PHY\n");
1063 post_run (NULL, POST_RAM | post_bootmode_get(0));
1066 #if defined(CONFIG_CMD_PCMCIA) \
1067 && !defined(CONFIG_CMD_IDE)
1073 #if defined(CONFIG_CMD_IDE)
1075 # ifdef CONFIG_IDE_8xx_PCCARD
1080 #if defined(CONFIG_START_IDE)
1081 if (board_start_ide())
1088 #ifdef CONFIG_LAST_STAGE_INIT
1091 * Some parts can be only initialized if all others (like
1092 * Interrupts) are up and running (i.e. the PC-style ISA
1098 #if defined(CONFIG_CMD_BEDBUG)
1103 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
1105 * Export available size of memory for Linux,
1106 * taking into account the protected RAM at top of memory
1114 if ((s = getenv ("pram")) != NULL) {
1115 pram = simple_strtoul (s, NULL, 10);
1122 #ifdef CONFIG_LOGBUFFER
1123 #ifndef CONFIG_ALT_LB_ADDR
1124 /* Also take the logbuffer into account (pram is in kB) */
1125 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1128 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1129 setenv ("mem", (char *)memsz);
1133 #ifdef CONFIG_PS2KBD
1138 #ifdef CONFIG_MODEM_SUPPORT
1140 extern int do_mdm_init;
1141 do_mdm_init = gd->do_mdm_init;
1145 /* Initialization complete - start the monitor */
1147 /* main_loop() can return to retry autoboot, if so just run it again. */
1153 /* NOTREACHED - no way out of command loop except booting */
1158 puts ("### ERROR ### Please RESET the board ###\n");
1159 show_boot_progress(-30);
1164 #if 0 /* We could use plain global data, but the resulting code is bigger */
1166 * Pointer to initial global data area
1168 * Here we initialize it.
1170 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1171 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1172 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
1175 /************************************************************************/