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_PCU_E) || defined(CONFIG_OXC)
88 extern flash_info_t flash_info[];
91 #include <environment.h>
93 #if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
94 (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
95 defined(CFG_ENV_IS_IN_NVRAM)
96 #define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
98 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
101 extern ulong __init_end;
103 ulong monitor_flash_len;
105 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
106 #include <bedbug/type.h>
110 * Begin and End of memory area for malloc(), and current "brk"
112 static ulong mem_malloc_start = 0;
113 static ulong mem_malloc_end = 0;
114 static ulong mem_malloc_brk = 0;
116 /************************************************************************
118 ************************************************************************
122 * The Malloc area is immediately below the monitor copy in DRAM
124 static void mem_malloc_init (void)
126 DECLARE_GLOBAL_DATA_PTR;
128 ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
130 mem_malloc_end = dest_addr;
131 mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
132 mem_malloc_brk = mem_malloc_start;
134 memset ((void *) mem_malloc_start,
136 mem_malloc_end - mem_malloc_start);
139 void *sbrk (ptrdiff_t increment)
141 ulong old = mem_malloc_brk;
142 ulong new = old + increment;
144 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
147 mem_malloc_brk = new;
148 return ((void *) old);
151 char *strmhz (char *buf, long hz)
157 l = sprintf (buf, "%ld", n);
158 m = (hz % 1000000L) / 1000L;
160 sprintf (buf + l, ".%03ld", m);
165 * All attempts to come up with a "common" initialization sequence
166 * that works for all boards and architectures failed: some of the
167 * requirements are just _too_ different. To get rid of the resulting
168 * mess of board dependend #ifdef'ed code we now make the whole
169 * initialization sequence configurable to the user.
171 * The requirements for any new initalization function is simple: it
172 * receives a pointer to the "global data" structure as it's only
173 * argument, and returns an integer return code, where 0 means
174 * "continue" and != 0 means "fatal error, hang the system".
176 typedef int (init_fnc_t) (void);
178 /************************************************************************
180 ************************************************************************
181 * Some of this code should be moved into the core functions,
182 * but let's get it working (again) first...
185 static int init_baudrate (void)
187 DECLARE_GLOBAL_DATA_PTR;
189 uchar tmp[64]; /* long enough for environment variables */
190 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
192 gd->baudrate = (i > 0)
193 ? (int) simple_strtoul (tmp, NULL, 10)
198 /***********************************************************************/
200 static int init_func_ram (void)
202 DECLARE_GLOBAL_DATA_PTR;
204 #ifdef CONFIG_BOARD_TYPES
205 int board_type = gd->board_type;
207 int board_type = 0; /* use dummy arg */
211 if ((gd->ram_size = initdram (board_type)) > 0) {
212 print_size (gd->ram_size, "\n");
219 /***********************************************************************/
221 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
222 static int init_func_i2c (void)
225 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
231 /***********************************************************************/
233 #if defined(CONFIG_WATCHDOG)
234 static int init_func_watchdog_init (void)
236 puts (" Watchdog enabled\n");
240 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
242 static int init_func_watchdog_reset (void)
247 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
249 # define INIT_FUNC_WATCHDOG_INIT /* undef */
250 # define INIT_FUNC_WATCHDOG_RESET /* undef */
251 #endif /* CONFIG_WATCHDOG */
253 /************************************************************************
254 * Initialization sequence *
255 ************************************************************************
258 init_fnc_t *init_sequence[] = {
260 #if defined(CONFIG_BOARD_PRE_INIT)
261 board_pre_init, /* very early board init code (fpga boot, etc.) */
264 get_clocks, /* get CPU and bus clocks (etc.) */
266 #ifdef CFG_ALLOC_DPRAM
267 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
271 #if defined(CONFIG_BOARD_POSTCLK_INIT)
279 #if defined(CONFIG_8260)
282 #endif /* CONFIG_8260 */
284 #if defined(CONFIG_MPC5XXX)
286 #endif /* CONFIG_MPC5XXX */
288 INIT_FUNC_WATCHDOG_INIT
289 #if defined(CONFIG_BMW) || \
290 defined(CONFIG_COGENT) || \
291 defined(CONFIG_HYMOD) || \
292 defined(CONFIG_RSD_PROTO) || \
296 INIT_FUNC_WATCHDOG_RESET
297 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
300 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
306 INIT_FUNC_WATCHDOG_RESET
308 #if defined(CFG_DRAM_TEST)
310 #endif /* CFG_DRAM_TEST */
311 INIT_FUNC_WATCHDOG_RESET
313 NULL, /* Terminate this list */
316 /************************************************************************
318 * This is the first part of the initialization sequence that is
319 * implemented in C, but still running from ROM.
321 * The main purpose is to provide a (serial) console interface as
322 * soon as possible (so we can see any error messages), and to
323 * initialize the RAM so that we can relocate the monitor code to
326 * Be aware of the restrictions: global data is read-only, BSS is not
327 * initialized, and stack space is limited to a few kB.
329 ************************************************************************
332 void board_init_f (ulong bootflag)
334 DECLARE_GLOBAL_DATA_PTR;
337 ulong len, addr, addr_sp;
339 init_fnc_t **init_fnc_ptr;
343 uchar tmp[64]; /* long enough for environment variables */
346 /* Pointer is writable since we allocated a register for it */
347 gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
349 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
350 /* Clear initial global data */
351 memset ((void *) gd, 0, sizeof (gd_t));
354 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
355 if ((*init_fnc_ptr) () != 0) {
361 * Now that we have DRAM mapped and working, we can
362 * relocate the code and continue running from DRAM.
364 * Reserve memory at end of RAM for (top down in that order):
365 * - kernel log buffer
369 * - board info struct
371 len = (ulong)&_end - CFG_MONITOR_BASE;
373 #ifndef CONFIG_VERY_BIG_RAM
374 addr = CFG_SDRAM_BASE + gd->ram_size;
376 /* only allow stack below 256M */
377 addr = CFG_SDRAM_BASE +
378 (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
381 #ifdef CONFIG_LOGBUFFER
382 /* reserve kernel log buffer */
383 addr -= (LOGBUFF_RESERVE);
384 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
389 * reserve protected RAM
391 i = getenv_r ("pram", tmp, sizeof (tmp));
392 reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
393 addr -= (reg << 10); /* size is in kB */
394 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
395 #endif /* CONFIG_PRAM */
397 /* round down to next 4 kB limit */
399 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
402 /* reserve memory for LCD display (always full pages) */
403 addr = lcd_setmem (addr);
405 #endif /* CONFIG_LCD */
407 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
408 /* reserve memory for video display (always full pages) */
409 addr = video_setmem (addr);
411 #endif /* CONFIG_VIDEO */
414 * reserve memory for U-Boot code, data & bss
415 * round down to next 4 kB limit
420 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
422 #ifdef CONFIG_AMIGAONEG3SE
423 gd->relocaddr = addr;
427 * reserve memory for malloc() arena
429 addr_sp = addr - TOTAL_MALLOC_LEN;
430 debug ("Reserving %dk for malloc() at: %08lx\n",
431 TOTAL_MALLOC_LEN >> 10, addr_sp);
434 * (permanently) allocate a Board Info struct
435 * and a permanent copy of the "global" data
437 addr_sp -= sizeof (bd_t);
438 bd = (bd_t *) addr_sp;
440 debug ("Reserving %d Bytes for Board Info at: %08lx\n",
441 sizeof (bd_t), addr_sp);
442 addr_sp -= sizeof (gd_t);
443 id = (gd_t *) addr_sp;
444 debug ("Reserving %d Bytes for Global Data at: %08lx\n",
445 sizeof (gd_t), addr_sp);
448 * Finally, we set up a new (bigger) stack.
450 * Leave some safety gap for SP, force alignment on 16 byte boundary
451 * Clear initial stack frame
455 *((ulong *) addr_sp)-- = 0;
456 *((ulong *) addr_sp)-- = 0;
457 debug ("Stack Pointer at: %08lx\n", addr_sp);
460 * Save local variables to board info struct
463 bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
464 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
467 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
468 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
470 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
471 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
474 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
476 bd->bi_immr_base = CFG_IMMR; /* base of IMMR register */
478 #if defined(CONFIG_MPC5XXX)
479 bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
482 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
485 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
486 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
487 #if defined(CONFIG_8260) || defined(CONFIG_MPC8560)
488 bd->bi_cpmfreq = gd->cpm_clk;
489 bd->bi_brgfreq = gd->brg_clk;
490 bd->bi_sccfreq = gd->scc_clk;
491 bd->bi_vco = gd->vco_out;
492 #endif /* CONFIG_8260 */
493 #if defined(CONFIG_MPC5XXX)
494 bd->bi_ipbfreq = gd->ipb_clk;
495 bd->bi_pcifreq = gd->pci_clk;
496 #endif /* CONFIG_MPC5XXX */
497 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
500 strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
501 strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
503 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
504 bd->bi_plb_busfreq = gd->bus_clk;
505 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
506 bd->bi_pci_busfreq = get_PCI_freq ();
509 bd->bi_opbfreq = CFG_OPB_FREQ;
511 bd->bi_opbfreq = 50000000;
513 bd->bi_iic_fast[0] = 0;
514 bd->bi_iic_fast[1] = 0;
518 debug ("New Stack Pointer is: %08lx\n", addr_sp);
523 post_bootmode_init();
524 post_run (NULL, POST_ROM | post_bootmode_get(0));
529 memcpy (id, (void *)gd, sizeof (gd_t));
531 relocate_code (addr_sp, id, addr);
533 /* NOTREACHED - relocate_code() does not return */
537 /************************************************************************
539 * This is the next part if the initialization sequence: we are now
540 * running from RAM and have a "normal" C environment, i. e. global
541 * data can be written, BSS has been cleared, the stack size in not
542 * that critical any more, etc.
544 ************************************************************************
547 void board_init_r (gd_t *id, ulong dest_addr)
549 DECLARE_GLOBAL_DATA_PTR;
554 extern void malloc_bin_reloc (void);
555 #ifndef CFG_ENV_IS_NOWHERE
556 extern char * env_name_spec;
563 gd = id; /* initialize RAM version of global data */
566 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
568 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
572 gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
574 monitor_flash_len = (ulong)&__init_end - dest_addr;
577 * We have to relocate the command table manually
579 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
581 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
583 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
584 cmdtp->name, (ulong) (cmdtp->cmd), addr);
587 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
589 addr = (ulong)(cmdtp->name) + gd->reloc_off;
590 cmdtp->name = (char *)addr;
593 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
594 cmdtp->usage = (char *)addr;
598 addr = (ulong)(cmdtp->help) + gd->reloc_off;
599 cmdtp->help = (char *)addr;
603 /* there are some other pointer constants we must deal with */
604 #ifndef CFG_ENV_IS_NOWHERE
605 env_name_spec += gd->reloc_off;
610 #ifdef CONFIG_LOGBUFFER
611 logbuff_init_ptrs ();
614 post_output_backlog ();
620 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM)
621 icache_enable (); /* it's time to enable the instruction cache */
624 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
625 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
628 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
630 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
631 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
636 #if defined(CONFIG_BAB7xx)
638 * Initialise the ISA bridge
640 initialise_w83c553f ();
643 asm ("sync ; isync");
646 * Setup trap handlers
648 trap_init (dest_addr);
650 #if !defined(CFG_NO_FLASH)
653 if ((flash_size = flash_init ()) > 0) {
654 # ifdef CFG_FLASH_CHECKSUM
655 print_size (flash_size, "");
657 * Compute and print flash CRC if flashchecksum is set to 'y'
659 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
661 s = getenv ("flashchecksum");
662 if (s && (*s == 'y')) {
663 printf (" CRC: %08lX",
665 (const unsigned char *) CFG_FLASH_BASE,
670 # else /* !CFG_FLASH_CHECKSUM */
671 print_size (flash_size, "\n");
672 # endif /* CFG_FLASH_CHECKSUM */
678 bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */
679 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
680 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
681 bd->bi_flashoffset = 0;
682 # elif CFG_MONITOR_BASE == CFG_FLASH_BASE
683 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
685 bd->bi_flashoffset = 0;
687 #else /* CFG_NO_FLASH */
689 bd->bi_flashsize = 0;
690 bd->bi_flashstart = 0;
691 bd->bi_flashoffset = 0;
692 #endif /* !CFG_NO_FLASH */
696 /* initialize higher level parts of CPU like time base and timers */
701 /* initialize malloc() area */
706 # if !defined(CFG_ENV_IS_IN_EEPROM)
712 /* relocate environment function pointers etc. */
716 * Fill in missing fields of bd_info.
717 * We do this here, where we have "normal" access to the
718 * environment; we used to do this still running from ROM,
719 * where had to use getenv_r(), which can be pretty slow when
720 * the environment is in EEPROM.
722 s = getenv ("ethaddr");
723 #if defined (CONFIG_MBX) || defined (CONFIG_RPXCLASSIC) || defined(CONFIG_IAD210)
725 board_get_enetaddr (bd->bi_enetaddr);
728 for (i = 0; i < 6; ++i) {
729 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
731 s = (*e) ? e + 1 : e;
734 if ((gd->board_type >> 16) == 2)
735 bd->bi_ethspeed = gd->board_type & 0xFFFF;
737 bd->bi_ethspeed = 0xFFFF;
741 load_sernum_ethaddr ();
744 #if defined(CFG_GT_6426x) || defined(CONFIG_PN62) || defined(CONFIG_PPCHAMELEONEVB) || \
745 defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS)
746 /* handle the 2nd ethernet address */
748 s = getenv ("eth1addr");
750 for (i = 0; i < 6; ++i) {
751 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
753 s = (*e) ? e + 1 : e;
756 #if defined(CFG_GT_6426x) || defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS)
757 /* handle the 3rd ethernet address */
759 s = getenv ("eth2addr");
761 for (i = 0; i < 6; ++i) {
762 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
764 s = (*e) ? e + 1 : e;
769 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
771 load_sernum_ethaddr ();
774 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
778 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx)
780 * Do pci configuration
785 /** leave this here (after malloc(), environment and PCI are working) **/
786 /* Initialize devices */
789 /* Initialize the jump table for applications */
792 /* Initialize the console (after the relocation and devices init) */
795 #if defined(CONFIG_CCM) || \
796 defined(CONFIG_COGENT) || \
797 defined(CONFIG_CPCI405) || \
798 defined(CONFIG_EVB64260) || \
799 defined(CONFIG_KUP4K) || \
800 defined(CONFIG_LWMON) || \
801 defined(CONFIG_PCU_E) || \
802 defined(CONFIG_W7O) || \
803 defined(CONFIG_MISC_INIT_R)
804 /* miscellaneous platform dependent initialisations */
809 if (bd->bi_ethspeed != 0xFFFF)
810 hermes_start_lxt980 ((int) bd->bi_ethspeed);
813 #if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
814 defined(CONFIG_CCM) || \
815 defined(CONFIG_ELPT860) || \
816 defined(CONFIG_EP8260) || \
817 defined(CONFIG_IP860) || \
818 defined(CONFIG_IVML24) || \
819 defined(CONFIG_IVMS8) || \
820 defined(CONFIG_LWMON) || \
821 defined(CONFIG_MPC8260ADS) || \
822 defined(CONFIG_MPC8266ADS) || \
823 defined(CONFIG_MPC8560ADS) || \
824 defined(CONFIG_PCU_E) || \
825 defined(CONFIG_RPXSUPER) || \
826 defined(CONFIG_SPD823TS) )
829 debug ("Reset Ethernet PHY\n");
833 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
839 debug ("U-Boot relocated to %08lx\n", dest_addr);
846 /* Must happen after interrupts are initialized since
847 * an irq handler gets installed
849 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
850 serial_buffered_init();
853 #ifdef CONFIG_STATUS_LED
854 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
861 /* Insert function pointers now that we have relocated the code */
863 /* Initialize from environment */
864 if ((s = getenv ("loadaddr")) != NULL) {
865 load_addr = simple_strtoul (s, NULL, 16);
867 #if (CONFIG_COMMANDS & CFG_CMD_NET)
868 if ((s = getenv ("bootfile")) != NULL) {
869 copy_filename (BootFile, s, sizeof (BootFile));
871 #endif /* CFG_CMD_NET */
875 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
881 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
887 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
890 nand_init(); /* go init the NAND */
893 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
900 post_run (NULL, POST_RAM | post_bootmode_get(0));
903 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
909 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
911 # ifdef CONFIG_IDE_8xx_PCCARD
917 #endif /* CFG_CMD_IDE */
919 #ifdef CONFIG_LAST_STAGE_INIT
922 * Some parts can be only initialized if all others (like
923 * Interrupts) are up and running (i.e. the PC-style ISA
929 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
934 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
936 * Export available size of memory for Linux,
937 * taking into account the protected RAM at top of memory
945 if ((s = getenv ("pram")) != NULL) {
946 pram = simple_strtoul (s, NULL, 10);
953 #ifdef CONFIG_LOGBUFFER
954 /* Also take the logbuffer into account (pram is in kB) */
955 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
957 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
958 setenv ("mem", memsz);
967 #ifdef CONFIG_MODEM_SUPPORT
969 extern int do_mdm_init;
970 do_mdm_init = gd->do_mdm_init;
974 /* Initialization complete - start the monitor */
976 /* main_loop() can return to retry autoboot, if so just run it again. */
982 /* NOTREACHED - no way out of command loop except booting */
987 puts ("### ERROR ### Please RESET the board ###\n");
991 #ifdef CONFIG_MODEM_SUPPORT
992 /* called from main loop (common/main.c) */
993 extern void dbg(const char *fmt, ...);
999 extern char console_buffer[];
1000 static inline void mdm_readline(char *buf, int bufsiz);
1001 extern void enable_putc(void);
1002 extern int hwflow_onoff(int);
1004 enable_putc(); /* enable serial_putc() */
1006 #ifdef CONFIG_HWFLOW
1007 init_str = getenv("mdm_flow_control");
1008 if (init_str && (strcmp(init_str, "rts/cts") == 0))
1015 sprintf(env_str, "mdm_init%d", i);
1016 if ((init_str = getenv(env_str)) != NULL) {
1017 serial_puts(init_str);
1020 mdm_readline(console_buffer, CFG_CBSIZE);
1021 dbg("ini%d: [%s]", i, console_buffer);
1023 if ((strcmp(console_buffer, "OK") == 0) ||
1024 (strcmp(console_buffer, "ERROR") == 0)) {
1025 dbg("ini%d: cmd done", i);
1027 } else /* in case we are originating call ... */
1028 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1029 dbg("ini%d: connect", i);
1034 break; /* no init string - stop modem init */
1041 /* final stage - wait for connect */
1042 for(;i > 1;) { /* if 'i' > 1 - wait for connection
1043 message from modem */
1044 mdm_readline(console_buffer, CFG_CBSIZE);
1045 dbg("ini_f: [%s]", console_buffer);
1046 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1047 dbg("ini_f: connected");
1055 /* 'inline' - We have to do it fast */
1056 static inline void mdm_readline(char *buf, int bufsiz)
1067 /* dbg("(%c)", c); */
1079 return; /* sanity check */
1089 #if 0 /* We could use plain global data, but the resulting code is bigger */
1091 * Pointer to initial global data area
1093 * Here we initialize it.
1095 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1096 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1097 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1100 /************************************************************************/