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,
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_8xx_CPUCLK_DEFAULT)
295 get_clocks, /* get CPU and bus clocks (etc.) */
296 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
297 && !defined(CONFIG_TQM885D)
298 adjust_sdram_tbs_8xx,
302 #ifdef CONFIG_SYS_ALLOC_DPRAM
303 #if !defined(CONFIG_CPM2)
307 #if defined(CONFIG_BOARD_POSTCLK_INIT)
311 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
312 get_clocks_866, /* get CPU and bus clocks according to the environment variable */
313 sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
320 #if defined(CONFIG_8260)
323 #endif /* CONFIG_8260 */
324 #if defined(CONFIG_MPC83xx)
328 #if defined(CONFIG_MPC5xxx)
330 #endif /* CONFIG_MPC5xxx */
331 #if defined(CONFIG_MPC8220)
335 INIT_FUNC_WATCHDOG_INIT
336 #if defined(CONFIG_MISC_INIT_F)
339 INIT_FUNC_WATCHDOG_RESET
340 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
343 #if defined(CONFIG_HARD_SPI)
349 INIT_FUNC_WATCHDOG_RESET
351 #if defined(CONFIG_SYS_DRAM_TEST)
353 #endif /* CONFIG_SYS_DRAM_TEST */
354 INIT_FUNC_WATCHDOG_RESET
356 NULL, /* Terminate this list */
359 ulong get_effective_memsize(void)
361 #ifndef CONFIG_VERY_BIG_RAM
364 /* limit stack to what we can reasonable map */
365 return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
366 CONFIG_MAX_MEM_MAPPED : gd->ram_size);
370 /************************************************************************
372 * This is the first part of the initialization sequence that is
373 * implemented in C, but still running from ROM.
375 * The main purpose is to provide a (serial) console interface as
376 * soon as possible (so we can see any error messages), and to
377 * initialize the RAM so that we can relocate the monitor code to
380 * Be aware of the restrictions: global data is read-only, BSS is not
381 * initialized, and stack space is limited to a few kB.
383 ************************************************************************
386 #ifdef CONFIG_LOGBUFFER
387 unsigned long logbuffer_base(void)
389 return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
393 void board_init_f (ulong bootflag)
396 ulong len, addr, addr_sp;
399 init_fnc_t **init_fnc_ptr;
403 uchar tmp[64]; /* long enough for environment variables */
406 /* Pointer is writable since we allocated a register for it */
407 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
408 /* compiler optimization barrier needed for GCC >= 3.4 */
409 __asm__ __volatile__("": : :"memory");
411 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC83xx) && \
412 !defined(CONFIG_MPC85xx) && !defined(CONFIG_MPC86xx)
413 /* Clear initial global data */
414 memset ((void *) gd, 0, sizeof (gd_t));
417 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
418 if ((*init_fnc_ptr) () != 0) {
424 * Now that we have DRAM mapped and working, we can
425 * relocate the code and continue running from DRAM.
427 * Reserve memory at end of RAM for (top down in that order):
428 * - area that won't get touched by U-Boot and Linux (optional)
429 * - kernel log buffer
433 * - board info struct
435 len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
438 * Subtract specified amount of memory to hide so that it won't
439 * get "touched" at all by U-Boot. By fixing up gd->ram_size
440 * the Linux kernel should now get passed the now "corrected"
441 * memory size and won't touch it either. This should work
442 * for arch/ppc and arch/powerpc. Only Linux board ports in
443 * arch/powerpc with bootwrapper support, that recalculate the
444 * memory size from the SDRAM controller setup will have to
447 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
449 addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
451 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
453 * We need to make sure the location we intend to put secondary core
454 * boot code is reserved and not used by any part of u-boot
456 if (addr > determine_mp_bootpg()) {
457 addr = determine_mp_bootpg();
458 debug ("Reserving MP boot page to %08lx\n", addr);
462 #ifdef CONFIG_LOGBUFFER
463 #ifndef CONFIG_ALT_LB_ADDR
464 /* reserve kernel log buffer */
465 addr -= (LOGBUFF_RESERVE);
466 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
472 * reserve protected RAM
474 i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
475 reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
476 addr -= (reg << 10); /* size is in kB */
477 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
478 #endif /* CONFIG_PRAM */
480 /* round down to next 4 kB limit */
482 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
485 /* reserve memory for LCD display (always full pages) */
486 addr = lcd_setmem (addr);
488 #endif /* CONFIG_LCD */
490 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
491 /* reserve memory for video display (always full pages) */
492 addr = video_setmem (addr);
494 #endif /* CONFIG_VIDEO */
497 * reserve memory for U-Boot code, data & bss
498 * round down to next 4 kB limit
503 /* round down to next 64 kB limit so that IVPR stays aligned */
504 addr &= ~(65536 - 1);
507 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
509 #ifdef CONFIG_AMIGAONEG3SE
510 gd->relocaddr = addr;
514 * reserve memory for malloc() arena
516 addr_sp = addr - TOTAL_MALLOC_LEN;
517 debug ("Reserving %dk for malloc() at: %08lx\n",
518 TOTAL_MALLOC_LEN >> 10, addr_sp);
521 * (permanently) allocate a Board Info struct
522 * and a permanent copy of the "global" data
524 addr_sp -= sizeof (bd_t);
525 bd = (bd_t *) addr_sp;
527 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
528 sizeof (bd_t), addr_sp);
529 addr_sp -= sizeof (gd_t);
530 id = (gd_t *) addr_sp;
531 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
532 sizeof (gd_t), addr_sp);
535 * Finally, we set up a new (bigger) stack.
537 * Leave some safety gap for SP, force alignment on 16 byte boundary
538 * Clear initial stack frame
542 s = (ulong *)addr_sp;
546 debug ("Stack Pointer at: %08lx\n", addr_sp);
549 * Save local variables to board info struct
552 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
553 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
556 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
557 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
558 #elif defined CONFIG_MPC8220
559 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM memory */
560 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM memory */
562 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
563 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
566 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
567 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
568 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
570 #if defined(CONFIG_MPC5xxx)
571 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
573 #if defined(CONFIG_MPC83xx)
574 bd->bi_immrbar = CONFIG_SYS_IMMR;
576 #if defined(CONFIG_MPC8220)
577 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
578 bd->bi_inpfreq = gd->inp_clk;
579 bd->bi_pcifreq = gd->pci_clk;
580 bd->bi_vcofreq = gd->vco_clk;
581 bd->bi_pevfreq = gd->pev_clk;
582 bd->bi_flbfreq = gd->flb_clk;
584 /* store bootparam to sram (backward compatible), here? */
586 u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE;
587 *sram++ = gd->ram_size;
588 *sram++ = gd->bus_clk;
589 *sram++ = gd->inp_clk;
590 *sram++ = gd->cpu_clk;
591 *sram++ = gd->vco_clk;
592 *sram++ = gd->flb_clk;
593 *sram++ = 0xb8c3ba11; /* boot signature */
597 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
600 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
601 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
602 #if defined(CONFIG_CPM2)
603 bd->bi_cpmfreq = gd->cpm_clk;
604 bd->bi_brgfreq = gd->brg_clk;
605 bd->bi_sccfreq = gd->scc_clk;
606 bd->bi_vco = gd->vco_out;
607 #endif /* CONFIG_CPM2 */
608 #if defined(CONFIG_MPC512X)
609 bd->bi_ipsfreq = gd->ips_clk;
610 #endif /* CONFIG_MPC512X */
611 #if defined(CONFIG_MPC5xxx)
612 bd->bi_ipbfreq = gd->ipb_clk;
613 bd->bi_pcifreq = gd->pci_clk;
614 #endif /* CONFIG_MPC5xxx */
615 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
617 #ifdef CONFIG_SYS_EXTBDINFO
618 strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
619 strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
621 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
622 bd->bi_plb_busfreq = gd->bus_clk;
623 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
624 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
625 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
626 bd->bi_pci_busfreq = get_PCI_freq ();
627 bd->bi_opbfreq = get_OPB_freq ();
628 #elif defined(CONFIG_XILINX_405)
629 bd->bi_pci_busfreq = get_PCI_freq ();
633 debug ("New Stack Pointer is: %08lx\n", addr_sp);
638 post_bootmode_init();
639 post_run (NULL, POST_ROM | post_bootmode_get(0));
644 memcpy (id, (void *)gd, sizeof (gd_t));
646 relocate_code (addr_sp, id, addr);
648 /* NOTREACHED - relocate_code() does not return */
651 /************************************************************************
653 * This is the next part if the initialization sequence: we are now
654 * running from RAM and have a "normal" C environment, i. e. global
655 * data can be written, BSS has been cleared, the stack size in not
656 * that critical any more, etc.
658 ************************************************************************
660 void board_init_r (gd_t *id, ulong dest_addr)
665 extern void malloc_bin_reloc (void);
666 #ifndef CONFIG_ENV_IS_NOWHERE
667 extern char * env_name_spec;
670 #ifndef CONFIG_SYS_NO_FLASH
674 gd = id; /* initialize RAM version of global data */
677 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
679 #if defined(CONFIG_RELOC_FIXUP_WORKS)
681 mem_malloc_end = dest_addr;
683 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
686 #ifdef CONFIG_SERIAL_MULTI
690 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
695 * Setup trap handlers
697 trap_init (dest_addr);
699 #ifdef CONFIG_ADDR_MAP
703 #if defined(CONFIG_BOARD_EARLY_INIT_R)
704 board_early_init_r ();
707 monitor_flash_len = (ulong)&__init_end - dest_addr;
710 * We have to relocate the command table manually
712 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
714 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
716 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
717 cmdtp->name, (ulong) (cmdtp->cmd), addr);
720 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
722 addr = (ulong)(cmdtp->name) + gd->reloc_off;
723 cmdtp->name = (char *)addr;
726 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
727 cmdtp->usage = (char *)addr;
729 #ifdef CONFIG_SYS_LONGHELP
731 addr = (ulong)(cmdtp->help) + gd->reloc_off;
732 cmdtp->help = (char *)addr;
736 /* there are some other pointer constants we must deal with */
737 #ifndef CONFIG_ENV_IS_NOWHERE
738 env_name_spec += gd->reloc_off;
743 #ifdef CONFIG_LOGBUFFER
744 logbuff_init_ptrs ();
747 post_output_backlog ();
753 #if defined(CONFIG_SYS_DELAYED_ICACHE) || defined(CONFIG_MPC83xx)
754 icache_enable (); /* it's time to enable the instruction cache */
757 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
758 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
761 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
763 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
764 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
769 #if defined(CONFIG_BAB7xx)
771 * Initialise the ISA bridge
773 initialise_w83c553f ();
776 asm ("sync ; isync");
778 /* initialize malloc() area */
782 #if !defined(CONFIG_SYS_NO_FLASH)
785 if ((flash_size = flash_init ()) > 0) {
786 # ifdef CONFIG_SYS_FLASH_CHECKSUM
787 print_size (flash_size, "");
789 * Compute and print flash CRC if flashchecksum is set to 'y'
791 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
793 s = getenv ("flashchecksum");
794 if (s && (*s == 'y')) {
795 printf (" CRC: %08X",
796 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
800 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
801 print_size (flash_size, "\n");
802 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
808 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
809 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
811 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
812 /* Make a update of the Memctrl. */
813 update_flash_size (flash_size);
817 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
818 /* flash mapped at end of memory map */
819 bd->bi_flashoffset = TEXT_BASE + flash_size;
820 # elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
821 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
823 bd->bi_flashoffset = 0;
825 #else /* CONFIG_SYS_NO_FLASH */
827 bd->bi_flashsize = 0;
828 bd->bi_flashstart = 0;
829 bd->bi_flashoffset = 0;
830 #endif /* !CONFIG_SYS_NO_FLASH */
834 /* initialize higher level parts of CPU like time base and timers */
840 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
846 #if defined(CONFIG_CMD_NAND)
849 nand_init(); /* go init the NAND */
852 /* relocate environment function pointers etc. */
856 * Fill in missing fields of bd_info.
857 * We do this here, where we have "normal" access to the
858 * environment; we used to do this still running from ROM,
859 * where had to use getenv_r(), which can be pretty slow when
860 * the environment is in EEPROM.
863 #if defined(CONFIG_SYS_EXTBDINFO)
864 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
865 #if defined(CONFIG_I2CFAST)
867 * set bi_iic_fast for linux taking environment variable
868 * "i2cfast" into account
871 char *s = getenv ("i2cfast");
872 if (s && ((*s == 'y') || (*s == 'Y'))) {
873 bd->bi_iic_fast[0] = 1;
874 bd->bi_iic_fast[1] = 1;
876 bd->bi_iic_fast[0] = 0;
877 bd->bi_iic_fast[1] = 0;
881 bd->bi_iic_fast[0] = 0;
882 bd->bi_iic_fast[1] = 0;
883 #endif /* CONFIG_I2CFAST */
884 #endif /* CONFIG_405GP, CONFIG_405EP */
885 #endif /* CONFIG_SYS_EXTBDINFO */
887 #if defined(CONFIG_SC3)
891 #if defined (CONFIG_ID_EEPROM) || defined (CONFIG_SYS_I2C_MAC_OFFSET)
892 mac_read_from_eeprom();
896 if ((gd->board_type >> 16) == 2)
897 bd->bi_ethspeed = gd->board_type & 0xFFFF;
899 bd->bi_ethspeed = 0xFFFF;
902 #ifdef CONFIG_CMD_NET
903 /* kept around for legacy kernels only ... ignore the next section */
904 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
905 #ifdef CONFIG_HAS_ETH1
906 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
908 #ifdef CONFIG_HAS_ETH2
909 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
911 #ifdef CONFIG_HAS_ETH3
912 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
914 #ifdef CONFIG_HAS_ETH4
915 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
917 #ifdef CONFIG_HAS_ETH5
918 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
920 #endif /* CONFIG_CMD_NET */
923 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
927 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45)
929 * Do pci configuration
934 /** leave this here (after malloc(), environment and PCI are working) **/
935 /* Initialize devices */
938 /* Initialize the jump table for applications */
941 #if defined(CONFIG_API)
946 /* Initialize the console (after the relocation and devices init) */
949 #if defined(CONFIG_CCM) || \
950 defined(CONFIG_COGENT) || \
951 defined(CONFIG_CPCI405) || \
952 defined(CONFIG_EVB64260) || \
953 defined(CONFIG_KUP4K) || \
954 defined(CONFIG_KUP4X) || \
955 defined(CONFIG_LWMON) || \
956 defined(CONFIG_PCU_E) || \
957 defined(CONFIG_SC3) || \
958 defined(CONFIG_W7O) || \
959 defined(CONFIG_MISC_INIT_R)
960 /* miscellaneous platform dependent initialisations */
965 if (bd->bi_ethspeed != 0xFFFF)
966 hermes_start_lxt980 ((int) bd->bi_ethspeed);
969 #if defined(CONFIG_CMD_KGDB)
975 debug ("U-Boot relocated to %08lx\n", dest_addr);
982 /* Must happen after interrupts are initialized since
983 * an irq handler gets installed
985 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
986 serial_buffered_init();
989 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
990 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
997 /* Initialize from environment */
998 if ((s = getenv ("loadaddr")) != NULL) {
999 load_addr = simple_strtoul (s, NULL, 16);
1001 #if defined(CONFIG_CMD_NET)
1002 if ((s = getenv ("bootfile")) != NULL) {
1003 copy_filename (BootFile, s, sizeof (BootFile));
1009 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
1012 #if defined(CONFIG_CMD_SCSI)
1018 #ifdef CONFIG_GENERIC_MMC
1021 mmc_initialize (bd);
1024 #if defined(CONFIG_CMD_DOC)
1030 #if defined(CONFIG_CMD_NET)
1031 #if defined(CONFIG_NET_MULTI)
1035 eth_initialize (bd);
1038 #if defined(CONFIG_CMD_NET) && ( \
1039 defined(CONFIG_CCM) || \
1040 defined(CONFIG_ELPT860) || \
1041 defined(CONFIG_EP8260) || \
1042 defined(CONFIG_IP860) || \
1043 defined(CONFIG_IVML24) || \
1044 defined(CONFIG_IVMS8) || \
1045 defined(CONFIG_MPC8260ADS) || \
1046 defined(CONFIG_MPC8266ADS) || \
1047 defined(CONFIG_MPC8560ADS) || \
1048 defined(CONFIG_PCU_E) || \
1049 defined(CONFIG_RPXSUPER) || \
1050 defined(CONFIG_STXGP3) || \
1051 defined(CONFIG_SPD823TS) || \
1052 defined(CONFIG_RESET_PHY_R) )
1055 debug ("Reset Ethernet PHY\n");
1060 post_run (NULL, POST_RAM | post_bootmode_get(0));
1063 #if defined(CONFIG_CMD_PCMCIA) \
1064 && !defined(CONFIG_CMD_IDE)
1070 #if defined(CONFIG_CMD_IDE)
1072 # ifdef CONFIG_IDE_8xx_PCCARD
1077 #if defined(CONFIG_START_IDE)
1078 if (board_start_ide())
1085 #ifdef CONFIG_LAST_STAGE_INIT
1088 * Some parts can be only initialized if all others (like
1089 * Interrupts) are up and running (i.e. the PC-style ISA
1095 #if defined(CONFIG_CMD_BEDBUG)
1100 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
1102 * Export available size of memory for Linux,
1103 * taking into account the protected RAM at top of memory
1111 if ((s = getenv ("pram")) != NULL) {
1112 pram = simple_strtoul (s, NULL, 10);
1119 #ifdef CONFIG_LOGBUFFER
1120 #ifndef CONFIG_ALT_LB_ADDR
1121 /* Also take the logbuffer into account (pram is in kB) */
1122 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1125 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1126 setenv ("mem", (char *)memsz);
1130 #ifdef CONFIG_PS2KBD
1135 #ifdef CONFIG_MODEM_SUPPORT
1137 extern int do_mdm_init;
1138 do_mdm_init = gd->do_mdm_init;
1142 /* Initialization complete - start the monitor */
1144 /* main_loop() can return to retry autoboot, if so just run it again. */
1150 /* NOTREACHED - no way out of command loop except booting */
1155 puts ("### ERROR ### Please RESET the board ###\n");
1156 show_boot_progress(-30);
1161 #if 0 /* We could use plain global data, but the resulting code is bigger */
1163 * Pointer to initial global data area
1165 * Here we initialize it.
1167 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1168 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1169 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
1172 /************************************************************************/