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wdenk4e5ca3e2003-12-08 01:34:36 +00001/*
wdenkbf9e3b32004-02-12 00:47:09 +00002 * (C) Copyright 2003
3 * Josef Baumgartner <josef.baumgartner@telex.de>
4 *
5 * (C) Copyright 2000-2002
wdenk4e5ca3e2003-12-08 01:34:36 +00006 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27#include <common.h>
28#include <watchdog.h>
29#include <command.h>
30#include <malloc.h>
31#include <devices.h>
wdenkbf9e3b32004-02-12 00:47:09 +000032
TsiChungLiew8ae158c2007-08-16 15:05:11 -050033#include <asm/immap.h>
wdenkbf9e3b32004-02-12 00:47:09 +000034
Jon Loeliger7def6b32007-07-09 18:02:11 -050035#if defined(CONFIG_CMD_IDE)
wdenk4e5ca3e2003-12-08 01:34:36 +000036#include <ide.h>
37#endif
Jon Loeliger7def6b32007-07-09 18:02:11 -050038#if defined(CONFIG_CMD_SCSI)
wdenk4e5ca3e2003-12-08 01:34:36 +000039#include <scsi.h>
40#endif
Jon Loeliger7def6b32007-07-09 18:02:11 -050041#if defined(CONFIG_CMD_KGDB)
wdenk4e5ca3e2003-12-08 01:34:36 +000042#include <kgdb.h>
43#endif
44#ifdef CONFIG_STATUS_LED
45#include <status_led.h>
46#endif
47#include <net.h>
Jon Loeliger7def6b32007-07-09 18:02:11 -050048#if defined(CONFIG_CMD_BEDBUG)
wdenk4e5ca3e2003-12-08 01:34:36 +000049#include <cmd_bedbug.h>
50#endif
51#ifdef CFG_ALLOC_DPRAM
52#include <commproc.h>
53#endif
54#include <version.h>
55
stroesee2c22d72004-12-16 17:55:22 +000056#if defined(CONFIG_HARD_I2C) || \
57 defined(CONFIG_SOFT_I2C)
58#include <i2c.h>
59#endif
60
Wolfgang Denkd87080b2006-03-31 18:32:53 +020061DECLARE_GLOBAL_DATA_PTR;
62
wdenk4e5ca3e2003-12-08 01:34:36 +000063static char *failed = "*** failed ***\n";
64
65#ifdef CONFIG_PCU_E
66extern flash_info_t flash_info[];
67#endif
68
wdenkbf9e3b32004-02-12 00:47:09 +000069#include <environment.h>
70
wdenk4e5ca3e2003-12-08 01:34:36 +000071#if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
72 (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
73 defined(CFG_ENV_IS_IN_NVRAM)
74#define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
75#else
76#define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
77#endif
78
wdenkbf9e3b32004-02-12 00:47:09 +000079extern ulong __init_end;
80extern ulong _end;
81
82extern void timer_init(void);
83
84#if defined(CONFIG_WATCHDOG)
85# define INIT_FUNC_WATCHDOG_INIT watchdog_init,
86# define WATCHDOG_DISABLE watchdog_disable
87
88extern int watchdog_init(void);
89extern int watchdog_disable(void);
90#else
91# define INIT_FUNC_WATCHDOG_INIT /* undef */
92# define WATCHDOG_DISABLE /* undef */
93#endif /* CONFIG_WATCHDOG */
94
95ulong monitor_flash_len;
96
wdenk4e5ca3e2003-12-08 01:34:36 +000097/*
98 * Begin and End of memory area for malloc(), and current "brk"
99 */
wdenkbf9e3b32004-02-12 00:47:09 +0000100static ulong mem_malloc_start = 0;
101static ulong mem_malloc_end = 0;
102static ulong mem_malloc_brk = 0;
wdenk4e5ca3e2003-12-08 01:34:36 +0000103
104/************************************************************************
105 * Utilities *
106 ************************************************************************
107 */
108
109/*
110 * The Malloc area is immediately below the monitor copy in DRAM
111 */
wdenkbf9e3b32004-02-12 00:47:09 +0000112static void mem_malloc_init (void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000113{
wdenkbf9e3b32004-02-12 00:47:09 +0000114 ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
115
wdenk4e5ca3e2003-12-08 01:34:36 +0000116 mem_malloc_end = dest_addr;
117 mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
118 mem_malloc_brk = mem_malloc_start;
119
wdenkbf9e3b32004-02-12 00:47:09 +0000120 memset ((void *) mem_malloc_start,
121 0,
wdenk4e5ca3e2003-12-08 01:34:36 +0000122 mem_malloc_end - mem_malloc_start);
123}
124
125void *sbrk (ptrdiff_t increment)
126{
127 ulong old = mem_malloc_brk;
128 ulong new = old + increment;
129
wdenkbf9e3b32004-02-12 00:47:09 +0000130 if ((new < mem_malloc_start) ||
131 (new > mem_malloc_end) ) {
wdenk4e5ca3e2003-12-08 01:34:36 +0000132 return (NULL);
133 }
134 mem_malloc_brk = new;
wdenkbf9e3b32004-02-12 00:47:09 +0000135 return ((void *)old);
wdenk4e5ca3e2003-12-08 01:34:36 +0000136}
137
wdenkbf9e3b32004-02-12 00:47:09 +0000138char *strmhz(char *buf, long hz)
wdenk4e5ca3e2003-12-08 01:34:36 +0000139{
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500140 long l, n;
141 long m;
wdenk4e5ca3e2003-12-08 01:34:36 +0000142
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500143 n = hz / 1000000L;
wdenk4e5ca3e2003-12-08 01:34:36 +0000144
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500145 l = sprintf (buf, "%ld", n);
wdenk4e5ca3e2003-12-08 01:34:36 +0000146
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500147 m = (hz % 1000000L) / 1000L;
wdenk4e5ca3e2003-12-08 01:34:36 +0000148
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500149 if (m != 0)
150 sprintf (buf+l, ".%03ld", m);
wdenk4e5ca3e2003-12-08 01:34:36 +0000151
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500152 return (buf);
wdenk4e5ca3e2003-12-08 01:34:36 +0000153}
154
wdenkbf9e3b32004-02-12 00:47:09 +0000155/*
156 * All attempts to come up with a "common" initialization sequence
157 * that works for all boards and architectures failed: some of the
158 * requirements are just _too_ different. To get rid of the resulting
159 * mess of board dependend #ifdef'ed code we now make the whole
160 * initialization sequence configurable to the user.
161 *
162 * The requirements for any new initalization function is simple: it
163 * receives a pointer to the "global data" structure as it's only
164 * argument, and returns an integer return code, where 0 means
165 * "continue" and != 0 means "fatal error, hang the system".
166 */
167typedef int (init_fnc_t) (void);
168
169/************************************************************************
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500170 * Init Utilities
wdenkbf9e3b32004-02-12 00:47:09 +0000171 ************************************************************************
172 * Some of this code should be moved into the core functions,
173 * but let's get it working (again) first...
174 */
175
176static int init_baudrate (void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000177{
wdenkbf9e3b32004-02-12 00:47:09 +0000178 uchar tmp[64]; /* long enough for environment variables */
179 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
wdenk4e5ca3e2003-12-08 01:34:36 +0000180
wdenkbf9e3b32004-02-12 00:47:09 +0000181 gd->baudrate = (i > 0)
182 ? (int) simple_strtoul (tmp, NULL, 10)
183 : CONFIG_BAUDRATE;
184 return (0);
wdenk4e5ca3e2003-12-08 01:34:36 +0000185}
186
wdenkbf9e3b32004-02-12 00:47:09 +0000187/***********************************************************************/
188
189static int init_func_ram (void)
190{
wdenkbf9e3b32004-02-12 00:47:09 +0000191 int board_type = 0; /* use dummy arg */
192 puts ("DRAM: ");
193
194 if ((gd->ram_size = initdram (board_type)) > 0) {
195 print_size (gd->ram_size, "\n");
196 return (0);
197 }
198 puts (failed);
199 return (1);
200}
201
202/***********************************************************************/
203
stroesee2c22d72004-12-16 17:55:22 +0000204#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
205static int init_func_i2c (void)
206{
207 puts ("I2C: ");
208 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
209 puts ("ready\n");
210 return (0);
211}
212#endif
213
214/***********************************************************************/
215
wdenkbf9e3b32004-02-12 00:47:09 +0000216/************************************************************************
217 * Initialization sequence *
218 ************************************************************************
219 */
220
221init_fnc_t *init_sequence[] = {
Stefan Roesed61ea142007-08-15 14:51:27 +0200222 get_clocks,
wdenkbf9e3b32004-02-12 00:47:09 +0000223 env_init,
224 init_baudrate,
225 serial_init,
226 console_init_f,
227 display_options,
228 checkcpu,
229 checkboard,
stroesee2c22d72004-12-16 17:55:22 +0000230#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
231 init_func_i2c,
232#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000233 init_func_ram,
234#if defined(CFG_DRAM_TEST)
235 testdram,
236#endif /* CFG_DRAM_TEST */
237 INIT_FUNC_WATCHDOG_INIT
238 NULL, /* Terminate this list */
239};
240
241
wdenk4e5ca3e2003-12-08 01:34:36 +0000242/************************************************************************
243 *
244 * This is the first part of the initialization sequence that is
245 * implemented in C, but still running from ROM.
246 *
247 * The main purpose is to provide a (serial) console interface as
248 * soon as possible (so we can see any error messages), and to
249 * initialize the RAM so that we can relocate the monitor code to
250 * RAM.
251 *
252 * Be aware of the restrictions: global data is read-only, BSS is not
253 * initialized, and stack space is limited to a few kB.
254 *
255 ************************************************************************
256 */
257
wdenkbf9e3b32004-02-12 00:47:09 +0000258void
259board_init_f (ulong bootflag)
wdenk4e5ca3e2003-12-08 01:34:36 +0000260{
wdenk4e5ca3e2003-12-08 01:34:36 +0000261 bd_t *bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000262 ulong len, addr, addr_sp;
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200263 ulong *paddr;
wdenkbf9e3b32004-02-12 00:47:09 +0000264 gd_t *id;
265 init_fnc_t **init_fnc_ptr;
266#ifdef CONFIG_PRAM
267 int i;
268 ulong reg;
wdenk4e5ca3e2003-12-08 01:34:36 +0000269 uchar tmp[64]; /* long enough for environment variables */
wdenkbf9e3b32004-02-12 00:47:09 +0000270#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000271
wdenkbf9e3b32004-02-12 00:47:09 +0000272 /* Pointer is writable since we allocated a register for it */
273 gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
wdenk93f6a672004-07-01 20:28:03 +0000274 /* compiler optimization barrier needed for GCC >= 3.4 */
275 __asm__ __volatile__("": : :"memory");
wdenk4e5ca3e2003-12-08 01:34:36 +0000276
wdenkbf9e3b32004-02-12 00:47:09 +0000277 /* Clear initial global data */
278 memset ((void *) gd, 0, sizeof (gd_t));
wdenk4e5ca3e2003-12-08 01:34:36 +0000279
wdenkbf9e3b32004-02-12 00:47:09 +0000280 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
281 if ((*init_fnc_ptr)() != 0) {
282 hang ();
283 }
wdenk4e5ca3e2003-12-08 01:34:36 +0000284 }
wdenk4e5ca3e2003-12-08 01:34:36 +0000285
286 /*
287 * Now that we have DRAM mapped and working, we can
288 * relocate the code and continue running from DRAM.
289 *
290 * Reserve memory at end of RAM for (top down in that order):
wdenkbf9e3b32004-02-12 00:47:09 +0000291 * - protected RAM
292 * - LCD framebuffer
293 * - monitor code
294 * - board info struct
wdenk4e5ca3e2003-12-08 01:34:36 +0000295 */
wdenkbf9e3b32004-02-12 00:47:09 +0000296 len = (ulong)&_end - CFG_MONITOR_BASE;
wdenk4e5ca3e2003-12-08 01:34:36 +0000297
wdenkbf9e3b32004-02-12 00:47:09 +0000298 addr = CFG_SDRAM_BASE + gd->ram_size;
wdenk4e5ca3e2003-12-08 01:34:36 +0000299
wdenkbf9e3b32004-02-12 00:47:09 +0000300#ifdef CONFIG_LOGBUFFER
301 /* reserve kernel log buffer */
302 addr -= (LOGBUFF_RESERVE);
303 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
304#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000305
wdenkbf9e3b32004-02-12 00:47:09 +0000306#ifdef CONFIG_PRAM
307 /*
308 * reserve protected RAM
309 */
310 i = getenv_r ("pram", tmp, sizeof (tmp));
311 reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
312 addr -= (reg << 10); /* size is in kB */
313 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
314#endif /* CONFIG_PRAM */
315
316 /*
317 * reserve memory for U-Boot code, data & bss
318 * round down to next 4 kB limit
319 */
wdenk4e5ca3e2003-12-08 01:34:36 +0000320 addr -= len;
wdenkbf9e3b32004-02-12 00:47:09 +0000321 addr &= ~(4096 - 1);
322
323 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
324
325 /*
326 * reserve memory for malloc() arena
327 */
328 addr_sp = addr - TOTAL_MALLOC_LEN;
329 debug ("Reserving %dk for malloc() at: %08lx\n",
330 TOTAL_MALLOC_LEN >> 10, addr_sp);
331
332 /*
333 * (permanently) allocate a Board Info struct
334 * and a permanent copy of the "global" data
335 */
336 addr_sp -= sizeof (bd_t);
337 bd = (bd_t *) addr_sp;
338 gd->bd = bd;
339 debug ("Reserving %d Bytes for Board Info at: %08lx\n",
340 sizeof (bd_t), addr_sp);
341 addr_sp -= sizeof (gd_t);
342 id = (gd_t *) addr_sp;
343 debug ("Reserving %d Bytes for Global Data at: %08lx\n",
344 sizeof (gd_t), addr_sp);
345
346 /* Reserve memory for boot params. */
347 addr_sp -= CFG_BOOTPARAMS_LEN;
348 bd->bi_boot_params = addr_sp;
349 debug ("Reserving %dk for boot parameters at: %08lx\n",
350 CFG_BOOTPARAMS_LEN >> 10, addr_sp);
351
352 /*
353 * Finally, we set up a new (bigger) stack.
354 *
355 * Leave some safety gap for SP, force alignment on 16 byte boundary
356 * Clear initial stack frame
357 */
358 addr_sp -= 16;
359 addr_sp &= ~0xF;
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200360
361 paddr = (ulong *)addr_sp;
362 *paddr-- = 0;
363 *paddr-- = 0;
364 addr_sp = (ulong)paddr;
Wolfgang Denk977b50f2006-05-10 17:43:20 +0200365
wdenkbf9e3b32004-02-12 00:47:09 +0000366 debug ("Stack Pointer at: %08lx\n", addr_sp);
wdenk4e5ca3e2003-12-08 01:34:36 +0000367
368 /*
369 * Save local variables to board info struct
370 */
wdenkbf9e3b32004-02-12 00:47:09 +0000371 bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
372 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
TsiChung Liew8e585f02007-06-18 13:50:13 -0500373#ifdef CFG_INIT_RAM_ADDR
374 bd->bi_sramstart = CFG_INIT_RAM_ADDR; /* start of SRAM memory */
375 bd->bi_sramsize = CFG_INIT_RAM_END; /* size of SRAM memory */
376#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000377 bd->bi_mbar_base = CFG_MBAR; /* base of internal registers */
wdenk4e5ca3e2003-12-08 01:34:36 +0000378
wdenkbf9e3b32004-02-12 00:47:09 +0000379 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
wdenk4e5ca3e2003-12-08 01:34:36 +0000380
wdenkbf9e3b32004-02-12 00:47:09 +0000381 WATCHDOG_RESET ();
382 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
383 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500384#ifdef CONFIG_PCI
385 bd->bi_pcifreq = gd->pci_clk; /* PCI Freq in Hz */
386#endif
387#ifdef CONFIG_EXTRA_CLOCK
388 bd->bi_inpfreq = gd->inp_clk; /* input Freq in Hz */
389 bd->bi_vcofreq = gd->vco_clk; /* vco Freq in Hz */
390 bd->bi_flbfreq = gd->flb_clk; /* flexbus Freq in Hz */
391#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000392 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
wdenk4e5ca3e2003-12-08 01:34:36 +0000393
394#ifdef CFG_EXTBDINFO
395 strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
wdenkbf9e3b32004-02-12 00:47:09 +0000396 strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
wdenk4e5ca3e2003-12-08 01:34:36 +0000397#endif
398
wdenkbf9e3b32004-02-12 00:47:09 +0000399 WATCHDOG_RESET ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000400
wdenkbf9e3b32004-02-12 00:47:09 +0000401#ifdef CONFIG_POST
402 post_bootmode_init();
403 post_run (NULL, POST_ROM | post_bootmode_get(0));
404#endif
405
406 WATCHDOG_RESET();
407
408 memcpy (id, (void *)gd, sizeof (gd_t));
409
410 debug ("Start relocate of code from %08x to %08lx\n", CFG_MONITOR_BASE, addr);
411 relocate_code (addr_sp, id, addr);
412
413 /* NOTREACHED - jump_to_ram() does not return */
wdenk4e5ca3e2003-12-08 01:34:36 +0000414}
415
wdenk4e5ca3e2003-12-08 01:34:36 +0000416/************************************************************************
417 *
418 * This is the next part if the initialization sequence: we are now
419 * running from RAM and have a "normal" C environment, i. e. global
420 * data can be written, BSS has been cleared, the stack size in not
421 * that critical any more, etc.
422 *
423 ************************************************************************
424 */
wdenkbf9e3b32004-02-12 00:47:09 +0000425void board_init_r (gd_t *id, ulong dest_addr)
wdenk4e5ca3e2003-12-08 01:34:36 +0000426{
wdenk4e5ca3e2003-12-08 01:34:36 +0000427 cmd_tbl_t *cmdtp;
wdenkbf9e3b32004-02-12 00:47:09 +0000428 char *s, *e;
wdenk4e5ca3e2003-12-08 01:34:36 +0000429 bd_t *bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000430 int i;
431 extern void malloc_bin_reloc (void);
wdenk4e5ca3e2003-12-08 01:34:36 +0000432
wdenkbf9e3b32004-02-12 00:47:09 +0000433#ifndef CFG_ENV_IS_NOWHERE
434 extern char * env_name_spec;
435#endif
436#ifndef CFG_NO_FLASH
437 ulong flash_size;
438#endif
439 gd = id; /* initialize RAM version of global data */
wdenk4e5ca3e2003-12-08 01:34:36 +0000440 bd = gd->bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000441
442 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
443
TsiChung Liew8e585f02007-06-18 13:50:13 -0500444#ifdef CONFIG_SERIAL_MULTI
445 serial_initialize();
446#endif
447
wdenkbf9e3b32004-02-12 00:47:09 +0000448 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
449
450 WATCHDOG_RESET ();
451
452 gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
453
454 monitor_flash_len = (ulong)&__init_end - dest_addr;
455
456 /*
457 * We have to relocate the command table manually
458 */
459 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
460 ulong addr;
461 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
462#if 0
463 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
464 cmdtp->name, (ulong) (cmdtp->cmd), addr);
465#endif
466 cmdtp->cmd =
467 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
468
469 addr = (ulong)(cmdtp->name) + gd->reloc_off;
470 cmdtp->name = (char *)addr;
471
472 if (cmdtp->usage) {
473 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
474 cmdtp->usage = (char *)addr;
475 }
476#ifdef CFG_LONGHELP
477 if (cmdtp->help) {
478 addr = (ulong)(cmdtp->help) + gd->reloc_off;
479 cmdtp->help = (char *)addr;
480 }
481#endif
482 }
483 /* there are some other pointer constants we must deal with */
484#ifndef CFG_ENV_IS_NOWHERE
485 env_name_spec += gd->reloc_off;
486#endif
487
488 WATCHDOG_RESET ();
489
490#ifdef CONFIG_LOGBUFFER
491 logbuff_init_ptrs ();
492#endif
493#ifdef CONFIG_POST
494 post_output_backlog ();
495 post_reloc ();
496#endif
497 WATCHDOG_RESET();
498
499#if 0
500 /* instruction cache enabled in cpu_init_f() for faster relocation */
501 icache_enable (); /* it's time to enable the instruction cache */
502#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000503
504 /*
505 * Setup trap handlers
506 */
TsiChung Liew8e585f02007-06-18 13:50:13 -0500507 trap_init (CFG_SDRAM_BASE);
wdenk4e5ca3e2003-12-08 01:34:36 +0000508
wdenkbf9e3b32004-02-12 00:47:09 +0000509#if !defined(CFG_NO_FLASH)
wdenk4e5ca3e2003-12-08 01:34:36 +0000510 puts ("FLASH: ");
511
512 if ((flash_size = flash_init ()) > 0) {
wdenkbf9e3b32004-02-12 00:47:09 +0000513# ifdef CFG_FLASH_CHECKSUM
514 print_size (flash_size, "");
wdenk4e5ca3e2003-12-08 01:34:36 +0000515 /*
516 * Compute and print flash CRC if flashchecksum is set to 'y'
517 *
wdenkbf9e3b32004-02-12 00:47:09 +0000518 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
wdenk4e5ca3e2003-12-08 01:34:36 +0000519 */
520 s = getenv ("flashchecksum");
521 if (s && (*s == 'y')) {
522 printf (" CRC: %08lX",
wdenkbf9e3b32004-02-12 00:47:09 +0000523 crc32 (0,
524 (const unsigned char *) CFG_FLASH_BASE,
525 flash_size)
526 );
wdenk4e5ca3e2003-12-08 01:34:36 +0000527 }
528 putc ('\n');
wdenkbf9e3b32004-02-12 00:47:09 +0000529# else /* !CFG_FLASH_CHECKSUM */
530 print_size (flash_size, "\n");
531# endif /* CFG_FLASH_CHECKSUM */
wdenk4e5ca3e2003-12-08 01:34:36 +0000532 } else {
533 puts (failed);
534 hang ();
535 }
536
wdenkbf9e3b32004-02-12 00:47:09 +0000537 bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */
538 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
539 bd->bi_flashoffset = 0;
540#else /* CFG_NO_FLASH */
541 bd->bi_flashsize = 0;
542 bd->bi_flashstart = 0;
543 bd->bi_flashoffset = 0;
544#endif /* !CFG_NO_FLASH */
wdenk4e5ca3e2003-12-08 01:34:36 +0000545
546 WATCHDOG_RESET ();
547
548 /* initialize higher level parts of CPU like time base and timers */
549 cpu_init_r ();
550
551 WATCHDOG_RESET ();
552
553 /* initialize malloc() area */
wdenkbf9e3b32004-02-12 00:47:09 +0000554 mem_malloc_init ();
555 malloc_bin_reloc ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000556
557#ifdef CONFIG_SPI
558# if !defined(CFG_ENV_IS_IN_EEPROM)
559 spi_init_f ();
560# endif
561 spi_init_r ();
562#endif
563
564 /* relocate environment function pointers etc. */
565 env_relocate ();
566
wdenkbf9e3b32004-02-12 00:47:09 +0000567 /*
568 * Fill in missing fields of bd_info.
569 * We do this here, where we have "normal" access to the
570 * environment; we used to do this still running from ROM,
571 * where had to use getenv_r(), which can be pretty slow when
572 * the environment is in EEPROM.
573 */
574 s = getenv ("ethaddr");
575 for (i = 0; i < 6; ++i) {
576 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
577 if (s)
578 s = (*e) ? e + 1 : e;
579 }
TsiChung Liew8e585f02007-06-18 13:50:13 -0500580#ifdef CONFIG_HAS_ETH1
581 /* handle the 2nd ethernet address */
582
583 s = getenv ("eth1addr");
584 for (i = 0; i < 6; ++i) {
585 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
586 if (s)
587 s = (*e) ? e + 1 : e;
588 }
589#endif
590#ifdef CONFIG_HAS_ETH2
591 /* handle the 3rd ethernet address */
592
593 s = getenv ("eth2addr");
594 for (i = 0; i < 6; ++i) {
595 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
596 if (s)
597 s = (*e) ? e + 1 : e;
598 }
599#endif
600
601#ifdef CONFIG_HAS_ETH3
602 /* handle 4th ethernet address */
603 s = getenv("eth3addr");
604 for (i = 0; i < 6; ++i) {
605 bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
606 if (s)
607 s = (*e) ? e + 1 : e;
608 }
609#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000610
wdenk4e5ca3e2003-12-08 01:34:36 +0000611 /* IP Address */
612 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
613
614 WATCHDOG_RESET ();
615
TsiChung Liew8e585f02007-06-18 13:50:13 -0500616#if defined(CONFIG_PCI)
617 /*
618 * Do pci configuration
619 */
620 pci_init ();
621#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000622
623 /** leave this here (after malloc(), environment and PCI are working) **/
624 /* Initialize devices */
625 devices_init ();
626
627 /* Initialize the jump table for applications */
628 jumptable_init ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000629
630 /* Initialize the console (after the relocation and devices init) */
wdenkbf9e3b32004-02-12 00:47:09 +0000631 console_init_r ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000632
stroesee2c22d72004-12-16 17:55:22 +0000633#if defined(CONFIG_MISC_INIT_R)
634 /* miscellaneous platform dependent initialisations */
635 misc_init_r ();
636#endif
637
Jon Loeliger7def6b32007-07-09 18:02:11 -0500638#if defined(CONFIG_CMD_KGDB)
wdenk4e5ca3e2003-12-08 01:34:36 +0000639 WATCHDOG_RESET ();
640 puts ("KGDB: ");
641 kgdb_init ();
642#endif
643
wdenkbf9e3b32004-02-12 00:47:09 +0000644 debug ("U-Boot relocated to %08lx\n", dest_addr);
645
wdenk4e5ca3e2003-12-08 01:34:36 +0000646 /*
647 * Enable Interrupts
648 */
649 interrupt_init ();
wdenkbf9e3b32004-02-12 00:47:09 +0000650
651 /* Must happen after interrupts are initialized since
652 * an irq handler gets installed
653 */
654 timer_init();
655
wdenk42dfe7a2004-03-14 22:25:36 +0000656#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
wdenkbf9e3b32004-02-12 00:47:09 +0000657 serial_buffered_init();
658#endif
659
660#ifdef CONFIG_STATUS_LED
661 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
662#endif
663
wdenk4e5ca3e2003-12-08 01:34:36 +0000664 udelay (20);
wdenkbf9e3b32004-02-12 00:47:09 +0000665
wdenk4e5ca3e2003-12-08 01:34:36 +0000666 set_timer (0);
667
668 /* Insert function pointers now that we have relocated the code */
669
670 /* Initialize from environment */
671 if ((s = getenv ("loadaddr")) != NULL) {
672 load_addr = simple_strtoul (s, NULL, 16);
673 }
Jon Loeliger7def6b32007-07-09 18:02:11 -0500674#if defined(CONFIG_CMD_NET)
wdenk4e5ca3e2003-12-08 01:34:36 +0000675 if ((s = getenv ("bootfile")) != NULL) {
676 copy_filename (BootFile, s, sizeof (BootFile));
677 }
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500678#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000679
680 WATCHDOG_RESET ();
681
Jon Loeliger7def6b32007-07-09 18:02:11 -0500682#if defined(CONFIG_CMD_DOC)
wdenk4e5ca3e2003-12-08 01:34:36 +0000683 WATCHDOG_RESET ();
wdenkbf9e3b32004-02-12 00:47:09 +0000684 puts ("DOC: ");
685 doc_init ();
686#endif
687
Jon Loeliger7def6b32007-07-09 18:02:11 -0500688#if defined(CONFIG_CMD_NAND)
wdenkbf9e3b32004-02-12 00:47:09 +0000689 WATCHDOG_RESET ();
Markus Klotzbuecherd860c342006-04-25 17:00:33 +0200690 puts ("NAND: ");
wdenkbf9e3b32004-02-12 00:47:09 +0000691 nand_init(); /* go init the NAND */
692#endif
693
Stefan Roesed61ea142007-08-15 14:51:27 +0200694#if defined(CONFIG_CMD_NET)
wdenkbf9e3b32004-02-12 00:47:09 +0000695 WATCHDOG_RESET();
TsiChung Liew8e585f02007-06-18 13:50:13 -0500696#if defined(FEC_ENET)
wdenkbf9e3b32004-02-12 00:47:09 +0000697 eth_init(bd);
698#endif
TsiChung Liew8e585f02007-06-18 13:50:13 -0500699#if defined(CONFIG_NET_MULTI)
700 puts ("Net: ");
TsiChungLiewab77bc52007-08-15 15:39:17 -0500701 eth_initialize (bd);
TsiChung Liew8e585f02007-06-18 13:50:13 -0500702#endif
703#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000704
705#ifdef CONFIG_POST
706 post_run (NULL, POST_RAM | post_bootmode_get(0));
wdenk4e5ca3e2003-12-08 01:34:36 +0000707#endif
708
Stefan Roesed61ea142007-08-15 14:51:27 +0200709#if defined(CONFIG_CMD_PCMCIA) \
710 && !defined(CONFIG_CMD_IDE)
TsiChung Liew8e585f02007-06-18 13:50:13 -0500711 WATCHDOG_RESET ();
712 puts ("PCMCIA:");
713 pcmcia_init ();
714#endif
715
Stefan Roesed61ea142007-08-15 14:51:27 +0200716#if defined(CONFIG_CMD_IDE)
TsiChung Liew8e585f02007-06-18 13:50:13 -0500717 WATCHDOG_RESET ();
718 puts ("IDE: ");
719 ide_init ();
Stefan Roesed61ea142007-08-15 14:51:27 +0200720#endif
TsiChung Liew8e585f02007-06-18 13:50:13 -0500721
wdenk4e5ca3e2003-12-08 01:34:36 +0000722#ifdef CONFIG_LAST_STAGE_INIT
723 WATCHDOG_RESET ();
724 /*
725 * Some parts can be only initialized if all others (like
726 * Interrupts) are up and running (i.e. the PC-style ISA
727 * keyboard).
728 */
729 last_stage_init ();
730#endif
731
Jon Loeliger7def6b32007-07-09 18:02:11 -0500732#if defined(CONFIG_CMD_BEDBUG)
wdenk4e5ca3e2003-12-08 01:34:36 +0000733 WATCHDOG_RESET ();
734 bedbug_init ();
735#endif
736
wdenkbf9e3b32004-02-12 00:47:09 +0000737#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
wdenk4e5ca3e2003-12-08 01:34:36 +0000738 /*
739 * Export available size of memory for Linux,
740 * taking into account the protected RAM at top of memory
741 */
742 {
743 ulong pram;
wdenk4e5ca3e2003-12-08 01:34:36 +0000744 uchar memsz[32];
wdenkbf9e3b32004-02-12 00:47:09 +0000745#ifdef CONFIG_PRAM
746 char *s;
wdenk4e5ca3e2003-12-08 01:34:36 +0000747
748 if ((s = getenv ("pram")) != NULL) {
749 pram = simple_strtoul (s, NULL, 10);
750 } else {
751 pram = CONFIG_PRAM;
752 }
wdenkbf9e3b32004-02-12 00:47:09 +0000753#else
754 pram=0;
755#endif
756#ifdef CONFIG_LOGBUFFER
757 /* Also take the logbuffer into account (pram is in kB) */
758 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
759#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000760 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
761 setenv ("mem", memsz);
762 }
763#endif
764
wdenkbf9e3b32004-02-12 00:47:09 +0000765#ifdef CONFIG_MODEM_SUPPORT
766 {
767 extern int do_mdm_init;
768 do_mdm_init = gd->do_mdm_init;
769 }
770#endif
771
772#ifdef CONFIG_WATCHDOG
773 /* disable watchdog if environment is set */
774 if ((s = getenv ("watchdog")) != NULL) {
775 if (strncmp (s, "off", 3) == 0) {
776 WATCHDOG_DISABLE ();
777 }
778 }
779#endif /* CONFIG_WATCHDOG*/
780
781
wdenk4e5ca3e2003-12-08 01:34:36 +0000782 /* Initialization complete - start the monitor */
783
784 /* main_loop() can return to retry autoboot, if so just run it again. */
785 for (;;) {
786 WATCHDOG_RESET ();
787 main_loop ();
788 }
789
790 /* NOTREACHED - no way out of command loop except booting */
791}
792
wdenkbf9e3b32004-02-12 00:47:09 +0000793
794void hang(void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000795{
796 puts ("### ERROR ### Please RESET the board ###\n");
797 for (;;);
798}