2 * (C) Copyright 2002-2006
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
7 * Marius Groeger <mgroeger@sysgo.de>
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 * To match the U-Boot user interface on ARM platforms to the U-Boot
30 * standard (as on PPC platforms), some messages with debug character
31 * are removed from the default U-Boot build.
33 * Define DEBUG here if you want additional info as shown below
34 * printed upon startup:
36 * U-Boot code: 00F00000 -> 00F3C774 BSS: -> 00FC3274
49 #include <onenand_uboot.h>
51 #ifdef CONFIG_DRIVER_SMC91111
52 #include "../drivers/net/smc91111.h"
54 #ifdef CONFIG_DRIVER_LAN91C96
55 #include "../drivers/net/lan91c96.h"
58 DECLARE_GLOBAL_DATA_PTR;
60 ulong monitor_flash_len;
62 #ifdef CONFIG_HAS_DATAFLASH
63 extern int AT91F_DataflashInit(void);
64 extern void dataflash_print_info(void);
67 #ifndef CONFIG_IDENT_STRING
68 #define CONFIG_IDENT_STRING ""
71 const char version_string[] =
72 U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")"CONFIG_IDENT_STRING;
74 #ifdef CONFIG_DRIVER_CS8900
75 extern void cs8900_get_enetaddr (uchar * addr);
78 #ifdef CONFIG_DRIVER_RTL8019
79 extern void rtl8019_get_enetaddr (uchar * addr);
82 #if defined(CONFIG_HARD_I2C) || \
83 defined(CONFIG_SOFT_I2C)
88 * Begin and End of memory area for malloc(), and current "brk"
90 static ulong mem_malloc_start = 0;
91 static ulong mem_malloc_end = 0;
92 static ulong mem_malloc_brk = 0;
95 void mem_malloc_init (ulong dest_addr)
97 mem_malloc_start = dest_addr;
98 mem_malloc_end = dest_addr + CFG_MALLOC_LEN;
99 mem_malloc_brk = mem_malloc_start;
101 memset ((void *) mem_malloc_start, 0,
102 mem_malloc_end - mem_malloc_start);
105 void *sbrk (ptrdiff_t increment)
107 ulong old = mem_malloc_brk;
108 ulong new = old + increment;
110 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
113 mem_malloc_brk = new;
115 return ((void *) old);
118 char *strmhz(char *buf, long hz)
124 l = sprintf (buf, "%ld", n);
125 m = (hz % 1000000L) / 1000L;
127 sprintf (buf + l, ".%03ld", m);
132 /************************************************************************
133 * Coloured LED functionality
134 ************************************************************************
135 * May be supplied by boards if desired
137 void inline __coloured_LED_init (void) {}
138 void inline coloured_LED_init (void) __attribute__((weak, alias("__coloured_LED_init")));
139 void inline __red_LED_on (void) {}
140 void inline red_LED_on (void) __attribute__((weak, alias("__red_LED_on")));
141 void inline __red_LED_off(void) {}
142 void inline red_LED_off(void) __attribute__((weak, alias("__red_LED_off")));
143 void inline __green_LED_on(void) {}
144 void inline green_LED_on(void) __attribute__((weak, alias("__green_LED_on")));
145 void inline __green_LED_off(void) {}
146 void inline green_LED_off(void)__attribute__((weak, alias("__green_LED_off")));
147 void inline __yellow_LED_on(void) {}
148 void inline yellow_LED_on(void)__attribute__((weak, alias("__yellow_LED_on")));
149 void inline __yellow_LED_off(void) {}
150 void inline yellow_LED_off(void)__attribute__((weak, alias("__yellow_LED_off")));
152 /************************************************************************
154 ************************************************************************
155 * Some of this code should be moved into the core functions,
156 * or dropped completely,
157 * but let's get it working (again) first...
160 static int init_baudrate (void)
162 char tmp[64]; /* long enough for environment variables */
163 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
164 gd->bd->bi_baudrate = gd->baudrate = (i > 0)
165 ? (int) simple_strtoul (tmp, NULL, 10)
171 static int display_banner (void)
173 printf ("\n\n%s\n\n", version_string);
174 debug ("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
175 _armboot_start, _bss_start, _bss_end);
176 #ifdef CONFIG_MODEM_SUPPORT
177 debug ("Modem Support enabled\n");
179 #ifdef CONFIG_USE_IRQ
180 debug ("IRQ Stack: %08lx\n", IRQ_STACK_START);
181 debug ("FIQ Stack: %08lx\n", FIQ_STACK_START);
188 * WARNING: this code looks "cleaner" than the PowerPC version, but
189 * has the disadvantage that you either get nothing, or everything.
190 * On PowerPC, you might see "DRAM: " before the system hangs - which
191 * gives a simple yet clear indication which part of the
192 * initialization if failing.
194 static int display_dram_config (void)
199 puts ("RAM Configuration:\n");
201 for(i=0; i<CONFIG_NR_DRAM_BANKS; i++) {
202 printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
203 print_size (gd->bd->bi_dram[i].size, "\n");
208 for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) {
209 size += gd->bd->bi_dram[i].size;
212 print_size(size, "\n");
219 static void display_flash_config (ulong size)
222 print_size (size, "\n");
224 #endif /* CFG_NO_FLASH */
226 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
227 static int init_func_i2c (void)
230 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
237 * Breathe some life into the board...
239 * Initialize a serial port as console, and carry out some hardware
242 * The first part of initialization is running from Flash memory;
243 * its main purpose is to initialize the RAM so that we
244 * can relocate the monitor code to RAM.
248 * All attempts to come up with a "common" initialization sequence
249 * that works for all boards and architectures failed: some of the
250 * requirements are just _too_ different. To get rid of the resulting
251 * mess of board dependent #ifdef'ed code we now make the whole
252 * initialization sequence configurable to the user.
254 * The requirements for any new initalization function is simple: it
255 * receives a pointer to the "global data" structure as it's only
256 * argument, and returns an integer return code, where 0 means
257 * "continue" and != 0 means "fatal error, hang the system".
259 typedef int (init_fnc_t) (void);
261 int print_cpuinfo (void); /* test-only */
263 init_fnc_t *init_sequence[] = {
264 cpu_init, /* basic cpu dependent setup */
265 board_init, /* basic board dependent setup */
266 interrupt_init, /* set up exceptions */
267 env_init, /* initialize environment */
268 init_baudrate, /* initialze baudrate settings */
269 serial_init, /* serial communications setup */
270 console_init_f, /* stage 1 init of console */
271 display_banner, /* say that we are here */
272 #if defined(CONFIG_DISPLAY_CPUINFO)
273 print_cpuinfo, /* display cpu info (and speed) */
275 #if defined(CONFIG_DISPLAY_BOARDINFO)
276 checkboard, /* display board info */
278 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
281 dram_init, /* configure available RAM banks */
286 void start_armboot (void)
288 init_fnc_t **init_fnc_ptr;
290 #if !defined(CFG_NO_FLASH) || defined (CONFIG_VFD) || defined(CONFIG_LCD)
293 #if defined(CONFIG_VFD) || defined(CONFIG_LCD)
297 /* Pointer is writable since we allocated a register for it */
298 gd = (gd_t*)(_armboot_start - CFG_MALLOC_LEN - sizeof(gd_t));
299 /* compiler optimization barrier needed for GCC >= 3.4 */
300 __asm__ __volatile__("": : :"memory");
302 memset ((void*)gd, 0, sizeof (gd_t));
303 gd->bd = (bd_t*)((char*)gd - sizeof(bd_t));
304 memset (gd->bd, 0, sizeof (bd_t));
306 monitor_flash_len = _bss_start - _armboot_start;
308 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
309 if ((*init_fnc_ptr)() != 0) {
315 /* configure available FLASH banks */
316 size = flash_init ();
317 display_flash_config (size);
318 #endif /* CFG_NO_FLASH */
322 # define PAGE_SIZE 4096
325 * reserve memory for VFD display (always full pages)
327 /* bss_end is defined in the board-specific linker script */
328 addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
329 size = vfd_setmem (addr);
331 #endif /* CONFIG_VFD */
334 /* board init may have inited fb_base */
337 # define PAGE_SIZE 4096
340 * reserve memory for LCD display (always full pages)
342 /* bss_end is defined in the board-specific linker script */
343 addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
344 size = lcd_setmem (addr);
347 #endif /* CONFIG_LCD */
349 /* armboot_start is defined in the board-specific linker script */
350 mem_malloc_init (_armboot_start - CFG_MALLOC_LEN);
352 #if defined(CONFIG_CMD_NAND)
354 nand_init(); /* go init the NAND */
357 #if defined(CONFIG_CMD_ONENAND)
361 #ifdef CONFIG_HAS_DATAFLASH
362 AT91F_DataflashInit();
363 dataflash_print_info();
366 /* initialize environment */
370 /* must do this after the framebuffer is allocated */
372 #endif /* CONFIG_VFD */
374 #ifdef CONFIG_SERIAL_MULTI
379 gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
388 i = getenv_r ("ethaddr", tmp, sizeof (tmp));
389 s = (i > 0) ? tmp : NULL;
391 for (reg = 0; reg < 6; ++reg) {
392 gd->bd->bi_enetaddr[reg] = s ? simple_strtoul (s, &e, 16) : 0;
394 s = (*e) ? e + 1 : e;
397 #ifdef CONFIG_HAS_ETH1
398 i = getenv_r ("eth1addr", tmp, sizeof (tmp));
399 s = (i > 0) ? tmp : NULL;
401 for (reg = 0; reg < 6; ++reg) {
402 gd->bd->bi_enet1addr[reg] = s ? simple_strtoul (s, &e, 16) : 0;
404 s = (*e) ? e + 1 : e;
409 devices_init (); /* get the devices list going. */
411 #ifdef CONFIG_CMC_PU2
412 load_sernum_ethaddr ();
413 #endif /* CONFIG_CMC_PU2 */
417 console_init_r (); /* fully init console as a device */
419 #if defined(CONFIG_MISC_INIT_R)
420 /* miscellaneous platform dependent initialisations */
424 /* enable exceptions */
425 enable_interrupts ();
427 /* Perform network card initialisation if necessary */
428 #ifdef CONFIG_DRIVER_TI_EMAC
429 extern void dm644x_eth_set_mac_addr (const u_int8_t *addr);
430 if (getenv ("ethaddr")) {
431 dm644x_eth_set_mac_addr(gd->bd->bi_enetaddr);
435 #ifdef CONFIG_DRIVER_CS8900
436 cs8900_get_enetaddr (gd->bd->bi_enetaddr);
439 #if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
440 if (getenv ("ethaddr")) {
441 smc_set_mac_addr(gd->bd->bi_enetaddr);
443 #endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */
445 /* Initialize from environment */
446 if ((s = getenv ("loadaddr")) != NULL) {
447 load_addr = simple_strtoul (s, NULL, 16);
449 #if defined(CONFIG_CMD_NET)
450 if ((s = getenv ("bootfile")) != NULL) {
451 copy_filename (BootFile, s, sizeof (BootFile));
455 #ifdef BOARD_LATE_INIT
458 #if defined(CONFIG_CMD_NET)
459 #if defined(CONFIG_NET_MULTI)
462 eth_initialize(gd->bd);
463 #if defined(CONFIG_RESET_PHY_R)
464 debug ("Reset Ethernet PHY\n");
468 /* main_loop() can return to retry autoboot, if so just run it again. */
473 /* NOTREACHED - no way out of command loop except booting */
478 puts ("### ERROR ### Please RESET the board ###\n");
482 #ifdef CONFIG_MODEM_SUPPORT
483 static inline void mdm_readline(char *buf, int bufsiz);
485 /* called from main loop (common/main.c) */
486 extern void dbg(const char *fmt, ...);
492 extern char console_buffer[];
493 extern void enable_putc(void);
494 extern int hwflow_onoff(int);
496 enable_putc(); /* enable serial_putc() */
499 init_str = getenv("mdm_flow_control");
500 if (init_str && (strcmp(init_str, "rts/cts") == 0))
507 sprintf(env_str, "mdm_init%d", i);
508 if ((init_str = getenv(env_str)) != NULL) {
509 serial_puts(init_str);
512 mdm_readline(console_buffer, CFG_CBSIZE);
513 dbg("ini%d: [%s]", i, console_buffer);
515 if ((strcmp(console_buffer, "OK") == 0) ||
516 (strcmp(console_buffer, "ERROR") == 0)) {
517 dbg("ini%d: cmd done", i);
519 } else /* in case we are originating call ... */
520 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
521 dbg("ini%d: connect", i);
526 break; /* no init string - stop modem init */
533 /* final stage - wait for connect */
534 for(;i > 1;) { /* if 'i' > 1 - wait for connection
535 message from modem */
536 mdm_readline(console_buffer, CFG_CBSIZE);
537 dbg("ini_f: [%s]", console_buffer);
538 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
539 dbg("ini_f: connected");
547 /* 'inline' - We have to do it fast */
548 static inline void mdm_readline(char *buf, int bufsiz)
559 /* dbg("(%c)", c); */
571 return; /* sanity check */
579 #endif /* CONFIG_MODEM_SUPPORT */