2 * (C) Copyright 2000-2002
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,
36 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
39 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
42 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
45 #ifdef CONFIG_STATUS_LED
46 #include <status_led.h>
49 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
50 #include <cmd_bedbug.h>
52 #ifdef CFG_ALLOC_DPRAM
56 #if defined(CONFIG_BAB7xx)
60 #if defined(CONFIG_POST)
63 #if defined(CONFIG_LOGBUFFER)
67 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
70 #if defined(CONFIG_HARD_I2C) || \
71 defined(CONFIG_SOFT_I2C)
75 static char *failed = "*** failed ***\n";
77 #if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
78 extern flash_info_t flash_info[];
81 #include <environment.h>
83 #if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
84 (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
85 defined(CFG_ENV_IS_IN_NVRAM)
86 #define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
88 #define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
92 * Begin and End of memory area for malloc(), and current "brk"
94 static ulong mem_malloc_start = 0;
95 static ulong mem_malloc_end = 0;
96 static ulong mem_malloc_brk = 0;
98 /************************************************************************
100 ************************************************************************
104 * The Malloc area is immediately below the monitor copy in DRAM
106 static void mem_malloc_init (void)
108 DECLARE_GLOBAL_DATA_PTR;
110 ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
112 mem_malloc_end = dest_addr;
113 mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
114 mem_malloc_brk = mem_malloc_start;
116 memset ((void *) mem_malloc_start,
118 mem_malloc_end - mem_malloc_start);
121 void *sbrk (ptrdiff_t increment)
123 ulong old = mem_malloc_brk;
124 ulong new = old + increment;
126 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
129 mem_malloc_brk = new;
130 return ((void *) old);
133 char *strmhz (char *buf, long hz)
139 l = sprintf (buf, "%ld", n);
140 m = (hz % 1000000L) / 1000L;
142 sprintf (buf + l, ".%03ld", m);
146 static void syscalls_init (void)
150 syscall_tbl[SYSCALL_MALLOC] = (void *) malloc;
151 syscall_tbl[SYSCALL_FREE] = (void *) free;
153 syscall_tbl[SYSCALL_INSTALL_HDLR] = (void *) irq_install_handler;
154 syscall_tbl[SYSCALL_FREE_HDLR] = (void *) irq_free_handler;
155 syscall_tbl[SYSCALL_GET_TIMER] = (void *)get_timer;
156 syscall_tbl[SYSCALL_UDELAY] = (void *)udelay;
158 addr = (ulong *) 0xc00; /* syscall ISR addr */
161 *addr++ |= (ulong) syscall_tbl >> 16;
162 *addr++ |= (ulong) syscall_tbl & 0xFFFF;
163 *addr++ |= NR_SYSCALLS >> 16;
164 *addr++ |= NR_SYSCALLS & 0xFFFF;
167 flush_cache (0x0C00, 0x10);
169 /* Initialize syscalls stack pointer */
170 addr = (ulong *) 0xCFC;
173 flush_cache ((ulong)addr, 0x10);
178 * All attempts to come up with a "common" initialization sequence
179 * that works for all boards and architectures failed: some of the
180 * requirements are just _too_ different. To get rid of the resulting
181 * mess of board dependend #ifdef'ed code we now make the whole
182 * initialization sequence configurable to the user.
184 * The requirements for any new initalization function is simple: it
185 * receives a pointer to the "global data" structure as it's only
186 * argument, and returns an integer return code, where 0 means
187 * "continue" and != 0 means "fatal error, hang the system".
189 typedef int (init_fnc_t) (void);
191 /************************************************************************
193 ************************************************************************
194 * Some of this code should be moved into the core functions,
195 * but let's get it working (again) first...
198 static int init_baudrate (void)
200 DECLARE_GLOBAL_DATA_PTR;
202 uchar 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 static int init_func_ram (void)
215 DECLARE_GLOBAL_DATA_PTR;
217 #ifdef CONFIG_BOARD_TYPES
218 int board_type = gd->board_type;
220 int board_type = 0; /* use dummy arg */
224 if ((gd->ram_size = initdram (board_type)) > 0) {
225 print_size (gd->ram_size, "\n");
232 /***********************************************************************/
234 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
235 static int init_func_i2c (void)
238 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
244 /***********************************************************************/
246 #if defined(CONFIG_WATCHDOG)
247 static int init_func_watchdog_init (void)
249 puts (" Watchdog enabled\n");
253 # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
255 static int init_func_watchdog_reset (void)
260 # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
262 # define INIT_FUNC_WATCHDOG_INIT /* undef */
263 # define INIT_FUNC_WATCHDOG_RESET /* undef */
264 #endif /* CONFIG_WATCHDOG */
266 /************************************************************************
267 * Initialization sequence *
268 ************************************************************************
271 init_fnc_t *init_sequence[] = {
273 #if defined(CONFIG_BOARD_PRE_INIT)
274 board_pre_init, /* very early board init code (fpga boot, etc.) */
277 get_clocks, /* get CPU and bus clocks (etc.) */
279 #ifdef CFG_ALLOC_DPRAM
282 #if defined(CONFIG_BOARD_POSTCLK_INIT)
290 #if defined(CONFIG_8260)
293 #endif /* CONFIG_8260 */
296 INIT_FUNC_WATCHDOG_INIT
297 #if defined(CONFIG_BMW) || \
298 defined(CONFIG_COGENT) || \
299 defined(CONFIG_HYMOD) || \
300 defined(CONFIG_RSD_PROTO) || \
304 INIT_FUNC_WATCHDOG_RESET
305 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
308 #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
314 INIT_FUNC_WATCHDOG_RESET
316 #if defined(CFG_DRAM_TEST)
318 #endif /* CFG_DRAM_TEST */
319 INIT_FUNC_WATCHDOG_RESET
321 NULL, /* Terminate this list */
324 /************************************************************************
326 * This is the first part of the initialization sequence that is
327 * implemented in C, but still running from ROM.
329 * The main purpose is to provide a (serial) console interface as
330 * soon as possible (so we can see any error messages), and to
331 * initialize the RAM so that we can relocate the monitor code to
334 * Be aware of the restrictions: global data is read-only, BSS is not
335 * initialized, and stack space is limited to a few kB.
337 ************************************************************************
340 void board_init_f (ulong bootflag)
342 DECLARE_GLOBAL_DATA_PTR;
345 ulong len, addr, addr_sp;
347 init_fnc_t **init_fnc_ptr;
351 uchar tmp[64]; /* long enough for environment variables */
354 /* Pointer is writable since we allocated a register for it */
355 gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
358 /* Clear initial global data */
359 memset ((void *) gd, 0, sizeof (gd_t));
362 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
363 if ((*init_fnc_ptr) () != 0) {
369 * Now that we have DRAM mapped and working, we can
370 * relocate the code and continue running from DRAM.
372 * Reserve memory at end of RAM for (top down in that order):
373 * - kernel log buffer
377 * - board info struct
379 len = get_endaddr () - CFG_MONITOR_BASE;
381 if (len > CFG_MONITOR_LEN) {
382 printf ("*** U-Boot size %ld > reserved memory (%d)\n",
383 len, CFG_MONITOR_LEN);
387 if (CFG_MONITOR_LEN > len)
388 len = CFG_MONITOR_LEN;
390 #ifndef CONFIG_VERY_BIG_RAM
391 addr = CFG_SDRAM_BASE + gd->ram_size;
393 /* only allow stack below 256M */
394 addr = CFG_SDRAM_BASE +
395 (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
398 #ifdef CONFIG_LOGBUFFER
399 /* reserve kernel log buffer */
400 addr -= (LOGBUFF_RESERVE);
402 printf ("Reserving %ldk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
408 * reserve protected RAM
410 i = getenv_r ("pram", tmp, sizeof (tmp));
411 reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
412 addr -= (reg << 10); /* size is in kB */
414 printf ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
416 #endif /* CONFIG_PRAM */
418 /* round down to next 4 kB limit */
421 printf ("Top of RAM usable for U-Boot at: %08lx\n", addr);
425 /* reserve memory for LCD display (always full pages) */
426 addr = lcd_setmem (addr);
428 #endif /* CONFIG_LCD */
430 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
431 /* reserve memory for video display (always full pages) */
432 addr = video_setmem (addr);
434 #endif /* CONFIG_VIDEO */
437 * reserve memory for U-Boot code, data & bss
438 * round down to next 4 kB limit
444 printf ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
447 #ifdef CONFIG_AMIGAONEG3SE
448 gd->relocaddr = addr;
452 * reserve memory for malloc() arena
454 addr_sp = addr - TOTAL_MALLOC_LEN;
456 printf ("Reserving %dk for malloc() at: %08lx\n",
457 TOTAL_MALLOC_LEN >> 10, addr_sp);
461 * (permanently) allocate a Board Info struct
462 * and a permanent copy of the "global" data
464 addr_sp -= sizeof (bd_t);
465 bd = (bd_t *) addr_sp;
468 printf ("Reserving %d Bytes for Board Info at: %08lx\n",
469 sizeof (bd_t), addr_sp);
471 addr_sp -= sizeof (gd_t);
472 id = (gd_t *) addr_sp;
474 printf ("Reserving %d Bytes for Global Data at: %08lx\n",
475 sizeof (gd_t), addr_sp);
479 * Finally, we set up a new (bigger) stack.
481 * Leave some safety gap for SP, force alignment on 16 byte boundary
482 * Clear initial stack frame
486 *((ulong *) addr_sp)-- = 0;
487 *((ulong *) addr_sp)-- = 0;
489 printf ("Stack Pointer at: %08lx\n", addr_sp);
493 * Save local variables to board info struct
496 bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
497 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
500 bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
501 bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
503 bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
504 bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
507 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx)
508 bd->bi_immr_base = CFG_IMMR; /* base of IMMR register */
511 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
514 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
515 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
516 #if defined(CONFIG_8260)
517 bd->bi_cpmfreq = gd->cpm_clk;
518 bd->bi_brgfreq = gd->brg_clk;
519 bd->bi_sccfreq = gd->scc_clk;
520 bd->bi_vco = gd->vco_out;
521 #endif /* CONFIG_8260 */
523 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
526 strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
527 strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
529 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
530 bd->bi_plb_busfreq = gd->bus_clk;
532 bd->bi_pci_busfreq = get_PCI_freq ();
537 printf ("New Stack Pointer is: %08lx\n", addr_sp);
543 post_bootmode_init();
544 post_run (NULL, POST_ROM | post_bootmode_get(0));
549 memcpy (id, gd, sizeof (gd_t));
551 relocate_code (addr_sp, id, addr);
553 /* NOTREACHED - relocate_code() does not return */
557 /************************************************************************
559 * This is the next part if the initialization sequence: we are now
560 * running from RAM and have a "normal" C environment, i. e. global
561 * data can be written, BSS has been cleared, the stack size in not
562 * that critical any more, etc.
564 ************************************************************************
567 void board_init_r (gd_t *id, ulong dest_addr)
569 DECLARE_GLOBAL_DATA_PTR;
575 extern void malloc_bin_reloc (void);
576 #ifndef CFG_ENV_IS_NOWHERE
577 extern char * env_name_spec;
584 gd = id; /* initialize RAM version of global data */
587 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
590 printf ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
595 gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
598 * We have to relocate the command table manually
600 for (cmdtp = &cmd_tbl[0]; cmdtp->name; cmdtp++) {
603 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
605 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
606 cmdtp->name, (ulong) (cmdtp->cmd), addr);
609 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
611 addr = (ulong)(cmdtp->name) + gd->reloc_off;
612 cmdtp->name = (char *)addr;
615 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
616 cmdtp->usage = (char *)addr;
620 addr = (ulong)(cmdtp->help) + gd->reloc_off;
621 cmdtp->help = (char *)addr;
625 /* there are some other pointer constants we must deal with */
626 #ifndef CFG_ENV_IS_NOWHERE
627 env_name_spec += gd->reloc_off;
632 #ifdef CONFIG_LOGBUFFER
633 logbuff_init_ptrs ();
636 post_output_backlog ();
642 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM)
643 icache_enable (); /* it's time to enable the instruction cache */
646 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
648 * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
649 * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
654 #if defined(CONFIG_BAB7xx)
656 * Initialise the ISA bridge
658 initialise_w83c553f ();
661 asm ("sync ; isync");
664 * Setup trap handlers
666 trap_init (dest_addr);
668 #if !defined(CFG_NO_FLASH)
671 if ((flash_size = flash_init ()) > 0) {
672 #ifdef CFG_FLASH_CHECKSUM
673 print_size (flash_size, "");
675 * Compute and print flash CRC if flashchecksum is set to 'y'
677 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
679 s = getenv ("flashchecksum");
680 if (s && (*s == 'y')) {
681 printf (" CRC: %08lX",
683 (const unsigned char *) CFG_FLASH_BASE,
689 print_size (flash_size, "\n");
690 #endif /* CFG_FLASH_CHECKSUM */
696 bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */
697 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
698 #if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
699 bd->bi_flashoffset = 0;
700 #elif CFG_MONITOR_BASE == CFG_FLASH_BASE
701 bd->bi_flashoffset = CFG_MONITOR_LEN; /* reserved area for startup monitor */
703 bd->bi_flashoffset = 0;
707 bd->bi_flashsize = 0;
708 bd->bi_flashstart = 0;
709 bd->bi_flashoffset = 0;
710 #endif /* !CFG_NO_FLASH */
714 /* initialize higher level parts of CPU like time base and timers */
719 /* initialize malloc() area */
724 # if !defined(CFG_ENV_IS_IN_EEPROM)
730 /* relocate environment function pointers etc. */
734 * Fill in missing fields of bd_info.
735 * We do this here, where we have "normal" access to the
736 * environment; we used to do this still running from ROM,
737 * where had to use getenv_r(), which can be pretty slow when
738 * the environment is in EEPROM.
740 s = getenv ("ethaddr");
741 #if defined (CONFIG_MBX) || defined (CONFIG_RPXCLASSIC) || defined(CONFIG_IAD210)
743 board_get_enetaddr (bd->bi_enetaddr);
746 for (i = 0; i < 6; ++i) {
747 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
749 s = (*e) ? e + 1 : e;
752 if ((gd->board_type >> 16) == 2)
753 bd->bi_ethspeed = gd->board_type & 0xFFFF;
755 bd->bi_ethspeed = 0xFFFF;
759 load_sernum_ethaddr ();
762 #if defined(CFG_GT_6426x) || defined(CONFIG_PN62)
763 /* handle the 2nd ethernet address */
765 s = getenv ("eth1addr");
767 for (i = 0; i < 6; ++i) {
768 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
770 s = (*e) ? e + 1 : e;
773 #if defined(CFG_GT_6426x)
774 /* handle the 3rd ethernet address */
776 s = getenv ("eth2addr");
778 for (i = 0; i < 6; ++i) {
779 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
781 s = (*e) ? e + 1 : e;
786 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
788 load_sernum_ethaddr ();
791 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
795 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx)
797 * Do pci configuration
802 /** leave this here (after malloc(), environment and PCI are working) **/
803 /* Initialize devices */
806 /* allocate syscalls table (console_init_r will fill it in */
807 syscall_tbl = (void **) malloc (NR_SYSCALLS * sizeof (void *));
809 /* Initialize the console (after the relocation and devices init) */
811 /** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
814 #if defined(CONFIG_CCM) || \
815 defined(CONFIG_COGENT) || \
816 defined(CONFIG_CPCI405) || \
817 defined(CONFIG_EVB64260) || \
818 defined(CONFIG_HYMOD) || \
819 defined(CONFIG_KUP4K) || \
820 defined(CONFIG_LWMON) || \
821 defined(CONFIG_PCU_E) || \
822 defined(CONFIG_W7O) || \
823 defined(CONFIG_MISC_INIT_R)
824 /* miscellaneous platform dependent initialisations */
829 if (bd->bi_ethspeed != 0xFFFF)
830 hermes_start_lxt980 ((int) bd->bi_ethspeed);
833 #if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
834 defined(CONFIG_CCM) || \
835 defined(CONFIG_ELPT860) || \
836 defined(CONFIG_EP8260) || \
837 defined(CONFIG_IP860) || \
838 defined(CONFIG_IVML24) || \
839 defined(CONFIG_IVMS8) || \
840 defined(CONFIG_LWMON) || \
841 defined(CONFIG_MPC8260ADS) || \
842 defined(CONFIG_PCU_E) || \
843 defined(CONFIG_RPXSUPER) || \
844 defined(CONFIG_SPD823TS) )
848 puts ("Reset Ethernet PHY\n");
853 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
860 printf ("U-Boot relocated to %08lx\n", dest_addr);
868 /* Must happen after interrupts are initialized since
869 * an irq handler gets installed
871 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
872 serial_buffered_init();
875 #ifdef CONFIG_STATUS_LED
876 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
883 /* Insert function pointers now that we have relocated the code */
885 /* Initialize from environment */
886 if ((s = getenv ("loadaddr")) != NULL) {
887 load_addr = simple_strtoul (s, NULL, 16);
889 #if (CONFIG_COMMANDS & CFG_CMD_NET)
890 if ((s = getenv ("bootfile")) != NULL) {
891 copy_filename (BootFile, s, sizeof (BootFile));
893 #endif /* CFG_CMD_NET */
897 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
903 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
909 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
916 post_run (NULL, POST_RAM | post_bootmode_get(0));
917 if (post_bootmode_get(0) & POST_POWERFAIL) {
918 post_bootmode_clear();
923 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
929 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
931 # ifdef CONFIG_IDE_8xx_PCCARD
937 #endif /* CFG_CMD_IDE */
939 #ifdef CONFIG_LAST_STAGE_INIT
942 * Some parts can be only initialized if all others (like
943 * Interrupts) are up and running (i.e. the PC-style ISA
949 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
954 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
956 * Export available size of memory for Linux,
957 * taking into account the protected RAM at top of memory
965 if ((s = getenv ("pram")) != NULL) {
966 pram = simple_strtoul (s, NULL, 10);
973 #ifdef CONFIG_LOGBUFFER
974 /* Also take the logbuffer into account (pram is in kB) */
975 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
977 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
978 setenv ("mem", memsz);
982 #ifdef CONFIG_MODEM_SUPPORT
984 extern int do_mdm_init;
985 do_mdm_init = gd->do_mdm_init;
989 /* Initialization complete - start the monitor */
991 /* main_loop() can return to retry autoboot, if so just run it again. */
997 /* NOTREACHED - no way out of command loop except booting */
1002 puts ("### ERROR ### Please RESET the board ###\n");
1006 #ifdef CONFIG_MODEM_SUPPORT
1007 /* called from main loop (common/main.c) */
1008 extern void dbg(const char *fmt, ...);
1014 extern char console_buffer[];
1015 static inline void mdm_readline(char *buf, int bufsiz);
1016 extern void enable_putc(void);
1017 extern int hwflow_onoff(int);
1019 enable_putc(); /* enable serial_putc() */
1021 #ifdef CONFIG_HWFLOW
1022 init_str = getenv("mdm_flow_control");
1023 if (init_str && (strcmp(init_str, "rts/cts") == 0))
1030 sprintf(env_str, "mdm_init%d", i);
1031 if ((init_str = getenv(env_str)) != NULL) {
1032 serial_puts(init_str);
1035 mdm_readline(console_buffer, CFG_CBSIZE);
1036 dbg("ini%d: [%s]", i, console_buffer);
1038 if ((strcmp(console_buffer, "OK") == 0) ||
1039 (strcmp(console_buffer, "ERROR") == 0)) {
1040 dbg("ini%d: cmd done", i);
1042 } else /* in case we are originating call ... */
1043 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1044 dbg("ini%d: connect", i);
1049 break; /* no init string - stop modem init */
1056 /* final stage - wait for connect */
1057 for(;i > 1;) { /* if 'i' > 1 - wait for connection
1058 message from modem */
1059 mdm_readline(console_buffer, CFG_CBSIZE);
1060 dbg("ini_f: [%s]", console_buffer);
1061 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1062 dbg("ini_f: connected");
1070 /* 'inline' - We have to do it fast */
1071 static inline void mdm_readline(char *buf, int bufsiz)
1082 /* dbg("(%c)", c); */
1094 return; /* sanity check */
1104 #if 0 /* We could use plain global data, but the resulting code is bigger */
1106 * Pointer to initial global data area
1108 * Here we initialize it.
1110 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
1111 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
1112 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1115 /************************************************************************/