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wdenkc0218802003-03-27 12:09:35 +00001/*
2 * (C) Copyright 2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <command.h>
26#include <malloc.h>
27#include <devices.h>
Peter Tyser561858e2008-11-03 09:30:59 -060028#include <timestamp.h>
wdenkc0218802003-03-27 12:09:35 +000029#include <version.h>
30#include <net.h>
31#include <environment.h>
Jason McMullane996bc32008-05-30 00:53:37 +090032#include <nand.h>
Stefan Roese9d23fc52008-11-12 13:18:19 +010033#include <onenand_uboot.h>
Jason McMullan89a15502008-05-30 00:53:37 +090034#include <spi.h>
wdenkc0218802003-03-27 12:09:35 +000035
Wolfgang Denkc75eba32005-12-01 02:15:07 +010036DECLARE_GLOBAL_DATA_PTR;
37
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020038#if ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
39 (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
Jean-Christophe PLAGNIOL-VILLARD9314cee2008-09-10 22:47:59 +020040 defined(CONFIG_ENV_IS_IN_NVRAM)
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020041#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
wdenkc0218802003-03-27 12:09:35 +000042#else
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020043#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
wdenkc0218802003-03-27 12:09:35 +000044#endif
45
46#undef DEBUG
47
48extern int timer_init(void);
49
wdenk7cb22f92003-12-27 19:24:54 +000050extern int incaip_set_cpuclk(void);
51
wdenk3b57fe02003-05-30 12:48:29 +000052extern ulong uboot_end_data;
53extern ulong uboot_end;
54
55ulong monitor_flash_len;
56
wdenkc0218802003-03-27 12:09:35 +000057const char version_string[] =
Peter Tyser561858e2008-11-03 09:30:59 -060058 U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")";
wdenkc0218802003-03-27 12:09:35 +000059
60static char *failed = "*** failed ***\n";
61
62/*
63 * Begin and End of memory area for malloc(), and current "brk"
64 */
65static ulong mem_malloc_start;
66static ulong mem_malloc_end;
67static ulong mem_malloc_brk;
68
Jean-Christophe PLAGNIOL-VILLARD5c150102007-11-13 09:11:05 +010069/*
70 * mips_io_port_base is the begin of the address space to which x86 style
71 * I/O ports are mapped.
72 */
73unsigned long mips_io_port_base = -1;
wdenkc0218802003-03-27 12:09:35 +000074
Stefan Roesedb08eca2008-11-12 13:18:02 +010075int __board_early_init_f(void)
76{
77 /*
78 * Nothing to do in this dummy implementation
79 */
80 return 0;
81}
82int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f")));
83
wdenkc0218802003-03-27 12:09:35 +000084/*
85 * The Malloc area is immediately below the monitor copy in DRAM
86 */
87static void mem_malloc_init (void)
88{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020089 ulong dest_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
wdenkc0218802003-03-27 12:09:35 +000090
91 mem_malloc_end = dest_addr;
92 mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
93 mem_malloc_brk = mem_malloc_start;
94
95 memset ((void *) mem_malloc_start,
96 0,
97 mem_malloc_end - mem_malloc_start);
98}
99
100void *sbrk (ptrdiff_t increment)
101{
102 ulong old = mem_malloc_brk;
103 ulong new = old + increment;
104
105 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
106 return (NULL);
107 }
108 mem_malloc_brk = new;
109 return ((void *) old);
110}
111
112
113static int init_func_ram (void)
114{
wdenkc0218802003-03-27 12:09:35 +0000115#ifdef CONFIG_BOARD_TYPES
116 int board_type = gd->board_type;
117#else
118 int board_type = 0; /* use dummy arg */
119#endif
120 puts ("DRAM: ");
121
122 if ((gd->ram_size = initdram (board_type)) > 0) {
123 print_size (gd->ram_size, "\n");
124 return (0);
125 }
126 puts (failed);
127 return (1);
128}
129
130static int display_banner(void)
131{
132
133 printf ("\n\n%s\n\n", version_string);
134 return (0);
135}
136
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200137#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000138static void display_flash_config(ulong size)
139{
140 puts ("Flash: ");
141 print_size (size, "\n");
142}
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100143#endif
wdenkc0218802003-03-27 12:09:35 +0000144
145static int init_baudrate (void)
146{
Wolfgang Denkf013dac2005-12-04 00:40:34 +0100147 char tmp[64]; /* long enough for environment variables */
wdenkc0218802003-03-27 12:09:35 +0000148 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
149
150 gd->baudrate = (i > 0)
151 ? (int) simple_strtoul (tmp, NULL, 10)
152 : CONFIG_BAUDRATE;
153
154 return (0);
155}
156
157
158/*
159 * Breath some life into the board...
160 *
161 * The first part of initialization is running from Flash memory;
162 * its main purpose is to initialize the RAM so that we
163 * can relocate the monitor code to RAM.
164 */
165
166/*
167 * All attempts to come up with a "common" initialization sequence
168 * that works for all boards and architectures failed: some of the
169 * requirements are just _too_ different. To get rid of the resulting
170 * mess of board dependend #ifdef'ed code we now make the whole
171 * initialization sequence configurable to the user.
172 *
173 * The requirements for any new initalization function is simple: it
174 * receives a pointer to the "global data" structure as it's only
175 * argument, and returns an integer return code, where 0 means
176 * "continue" and != 0 means "fatal error, hang the system".
177 */
178typedef int (init_fnc_t) (void);
179
180init_fnc_t *init_sequence[] = {
Stefan Roesedb08eca2008-11-12 13:18:02 +0100181 board_early_init_f,
wdenkc0218802003-03-27 12:09:35 +0000182 timer_init,
183 env_init, /* initialize environment */
wdenk7cb22f92003-12-27 19:24:54 +0000184#ifdef CONFIG_INCA_IP
185 incaip_set_cpuclk, /* set cpu clock according to environment variable */
186#endif
wdenkc0218802003-03-27 12:09:35 +0000187 init_baudrate, /* initialze baudrate settings */
188 serial_init, /* serial communications setup */
189 console_init_f,
190 display_banner, /* say that we are here */
wdenk85ec0bc2003-03-31 16:34:49 +0000191 checkboard,
wdenkc0218802003-03-27 12:09:35 +0000192 init_func_ram,
193 NULL,
194};
195
196
197void board_init_f(ulong bootflag)
198{
wdenkc0218802003-03-27 12:09:35 +0000199 gd_t gd_data, *id;
200 bd_t *bd;
201 init_fnc_t **init_fnc_ptr;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200202 ulong addr, addr_sp, len = (ulong)&uboot_end - CONFIG_SYS_MONITOR_BASE;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100203 ulong *s;
wdenk3e386912003-04-05 00:53:31 +0000204#ifdef CONFIG_PURPLE
205 void copy_code (ulong);
206#endif
wdenkc0218802003-03-27 12:09:35 +0000207
wdenk69459792004-05-29 16:53:29 +0000208 /* Pointer is writable since we allocated a register for it.
209 */
wdenkc0218802003-03-27 12:09:35 +0000210 gd = &gd_data;
wdenk93f6a672004-07-01 20:28:03 +0000211 /* compiler optimization barrier needed for GCC >= 3.4 */
212 __asm__ __volatile__("": : :"memory");
213
wdenk27b207f2003-07-24 23:38:38 +0000214 memset ((void *)gd, 0, sizeof (gd_t));
wdenkc0218802003-03-27 12:09:35 +0000215
216 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
217 if ((*init_fnc_ptr)() != 0) {
218 hang ();
219 }
220 }
221
222 /*
223 * Now that we have DRAM mapped and working, we can
224 * relocate the code and continue running from DRAM.
225 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200226 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
wdenkc0218802003-03-27 12:09:35 +0000227
wdenk69459792004-05-29 16:53:29 +0000228 /* We can reserve some RAM "on top" here.
229 */
wdenkc0218802003-03-27 12:09:35 +0000230
wdenk69459792004-05-29 16:53:29 +0000231 /* round down to next 4 kB limit.
232 */
wdenkc0218802003-03-27 12:09:35 +0000233 addr &= ~(4096 - 1);
wdenk69459792004-05-29 16:53:29 +0000234 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
wdenk8bde7f72003-06-27 21:31:46 +0000235
wdenk69459792004-05-29 16:53:29 +0000236 /* Reserve memory for U-Boot code, data & bss
237 * round down to next 16 kB limit
238 */
wdenkc0218802003-03-27 12:09:35 +0000239 addr -= len;
wdenk3b57fe02003-05-30 12:48:29 +0000240 addr &= ~(16 * 1024 - 1);
wdenkc0218802003-03-27 12:09:35 +0000241
wdenk69459792004-05-29 16:53:29 +0000242 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
wdenkc0218802003-03-27 12:09:35 +0000243
wdenk69459792004-05-29 16:53:29 +0000244 /* Reserve memory for malloc() arena.
245 */
wdenkc0218802003-03-27 12:09:35 +0000246 addr_sp = addr - TOTAL_MALLOC_LEN;
wdenk69459792004-05-29 16:53:29 +0000247 debug ("Reserving %dk for malloc() at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000248 TOTAL_MALLOC_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000249
250 /*
251 * (permanently) allocate a Board Info struct
252 * and a permanent copy of the "global" data
253 */
254 addr_sp -= sizeof(bd_t);
255 bd = (bd_t *)addr_sp;
256 gd->bd = bd;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200257 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000258 sizeof(bd_t), addr_sp);
wdenk69459792004-05-29 16:53:29 +0000259
wdenkc0218802003-03-27 12:09:35 +0000260 addr_sp -= sizeof(gd_t);
261 id = (gd_t *)addr_sp;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200262 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000263 sizeof (gd_t), addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000264
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100265 /* Reserve memory for boot params.
wdenk69459792004-05-29 16:53:29 +0000266 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200267 addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
wdenkc0218802003-03-27 12:09:35 +0000268 bd->bi_boot_params = addr_sp;
wdenk69459792004-05-29 16:53:29 +0000269 debug ("Reserving %dk for boot params() at: %08lx\n",
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200270 CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000271
272 /*
273 * Finally, we set up a new (bigger) stack.
274 *
275 * Leave some safety gap for SP, force alignment on 16 byte boundary
276 * Clear initial stack frame
277 */
278 addr_sp -= 16;
279 addr_sp &= ~0xF;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100280 s = (ulong *)addr_sp;
281 *s-- = 0;
282 *s-- = 0;
283 addr_sp = (ulong)s;
wdenk69459792004-05-29 16:53:29 +0000284 debug ("Stack Pointer at: %08lx\n", addr_sp);
285
wdenkc0218802003-03-27 12:09:35 +0000286 /*
287 * Save local variables to board info struct
288 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200289 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
wdenkc0218802003-03-27 12:09:35 +0000290 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
291 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
292
wdenk27b207f2003-07-24 23:38:38 +0000293 memcpy (id, (void *)gd, sizeof (gd_t));
wdenk3e386912003-04-05 00:53:31 +0000294
295 /* On the purple board we copy the code in a special way
296 * in order to solve flash problems
297 */
298#ifdef CONFIG_PURPLE
299 copy_code(addr);
300#endif
301
wdenkc0218802003-03-27 12:09:35 +0000302 relocate_code (addr_sp, id, addr);
303
304 /* NOTREACHED - relocate_code() does not return */
305}
306/************************************************************************
307 *
308 * This is the next part if the initialization sequence: we are now
309 * running from RAM and have a "normal" C environment, i. e. global
310 * data can be written, BSS has been cleared, the stack size in not
311 * that critical any more, etc.
312 *
313 ************************************************************************
314 */
315
316void board_init_r (gd_t *id, ulong dest_addr)
317{
wdenkc0218802003-03-27 12:09:35 +0000318 cmd_tbl_t *cmdtp;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200319#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000320 ulong size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100321#endif
wdenkc0218802003-03-27 12:09:35 +0000322 extern void malloc_bin_reloc (void);
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200323#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000324 extern char * env_name_spec;
325#endif
326 char *s, *e;
327 bd_t *bd;
328 int i;
329
330 gd = id;
331 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
332
wdenk69459792004-05-29 16:53:29 +0000333 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
wdenkc0218802003-03-27 12:09:35 +0000334
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200335 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
wdenkc0218802003-03-27 12:09:35 +0000336
wdenk3b57fe02003-05-30 12:48:29 +0000337 monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
338
wdenkc0218802003-03-27 12:09:35 +0000339 /*
340 * We have to relocate the command table manually
341 */
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100342 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
wdenkc0218802003-03-27 12:09:35 +0000343 ulong addr;
344
345 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
346#if 0
347 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
348 cmdtp->name, (ulong) (cmdtp->cmd), addr);
349#endif
350 cmdtp->cmd =
351 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
352
353 addr = (ulong)(cmdtp->name) + gd->reloc_off;
354 cmdtp->name = (char *)addr;
355
356 if (cmdtp->usage) {
357 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
358 cmdtp->usage = (char *)addr;
359 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200360#ifdef CONFIG_SYS_LONGHELP
wdenkc0218802003-03-27 12:09:35 +0000361 if (cmdtp->help) {
362 addr = (ulong)(cmdtp->help) + gd->reloc_off;
363 cmdtp->help = (char *)addr;
364 }
365#endif
366 }
367 /* there are some other pointer constants we must deal with */
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200368#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000369 env_name_spec += gd->reloc_off;
370#endif
wdenk8bde7f72003-06-27 21:31:46 +0000371
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100372 bd = gd->bd;
373
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200374#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000375 /* configure available FLASH banks */
376 size = flash_init();
377 display_flash_config (size);
wdenkc0218802003-03-27 12:09:35 +0000378 bd->bi_flashsize = size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100379#endif
380
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200381 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
382#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
wdenk3b57fe02003-05-30 12:48:29 +0000383 bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
wdenkc0218802003-03-27 12:09:35 +0000384#else
385 bd->bi_flashoffset = 0;
386#endif
387
388 /* initialize malloc() area */
389 mem_malloc_init();
390 malloc_bin_reloc();
391
Stefan Roese9d23fc52008-11-12 13:18:19 +0100392#ifdef CONFIG_CMD_NAND
393 puts ("NAND: ");
394 nand_init (); /* go init the NAND */
395#endif
396
397#if defined(CONFIG_CMD_ONENAND)
398 onenand_init();
399#endif
400
wdenkc0218802003-03-27 12:09:35 +0000401 /* relocate environment function pointers etc. */
402 env_relocate();
403
wdenkc0218802003-03-27 12:09:35 +0000404 /* IP Address */
405 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
406
wdenkf4863a72004-02-07 01:27:10 +0000407#if defined(CONFIG_PCI)
408 /*
409 * Do pci configuration
410 */
411 pci_init();
412#endif
413
wdenkc0218802003-03-27 12:09:35 +0000414/** leave this here (after malloc(), environment and PCI are working) **/
415 /* Initialize devices */
416 devices_init ();
417
wdenk27b207f2003-07-24 23:38:38 +0000418 jumptable_init ();
wdenkc0218802003-03-27 12:09:35 +0000419
420 /* Initialize the console (after the relocation and devices init) */
421 console_init_r ();
422/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
423
wdenk3e386912003-04-05 00:53:31 +0000424 /* Initialize from environment */
425 if ((s = getenv ("loadaddr")) != NULL) {
426 load_addr = simple_strtoul (s, NULL, 16);
427 }
Jon Loeliger7def6b32007-07-09 18:02:11 -0500428#if defined(CONFIG_CMD_NET)
wdenk3e386912003-04-05 00:53:31 +0000429 if ((s = getenv ("bootfile")) != NULL) {
430 copy_filename (BootFile, s, sizeof (BootFile));
431 }
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500432#endif
wdenk3e386912003-04-05 00:53:31 +0000433
Jason McMullan89a15502008-05-30 00:53:37 +0900434#ifdef CONFIG_CMD_SPI
435 puts ("SPI: ");
436 spi_init (); /* go init the SPI */
437 puts ("ready\n");
438#endif
439
wdenk3e386912003-04-05 00:53:31 +0000440#if defined(CONFIG_MISC_INIT_R)
441 /* miscellaneous platform dependent initialisations */
442 misc_init_r ();
443#endif
444
Jon Loeliger7def6b32007-07-09 18:02:11 -0500445#if defined(CONFIG_CMD_NET)
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200446#if defined(CONFIG_NET_MULTI)
wdenkc0218802003-03-27 12:09:35 +0000447 puts ("Net: ");
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200448#endif
wdenkc0218802003-03-27 12:09:35 +0000449 eth_initialize(gd->bd);
450#endif
451
452 /* main_loop() can return to retry autoboot, if so just run it again. */
453 for (;;) {
454 main_loop ();
455 }
456
457 /* NOTREACHED - no way out of command loop except booting */
458}
459
460void hang (void)
461{
462 puts ("### ERROR ### Please RESET the board ###\n");
463 for (;;);
464}