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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>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020027#include <stdio_dev.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/*
Jean-Christophe PLAGNIOL-VILLARD5c150102007-11-13 09:11:05 +010063 * mips_io_port_base is the begin of the address space to which x86 style
64 * I/O ports are mapped.
65 */
66unsigned long mips_io_port_base = -1;
wdenkc0218802003-03-27 12:09:35 +000067
Stefan Roesedb08eca2008-11-12 13:18:02 +010068int __board_early_init_f(void)
69{
70 /*
71 * Nothing to do in this dummy implementation
72 */
73 return 0;
74}
75int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f")));
76
wdenkc0218802003-03-27 12:09:35 +000077
78static int init_func_ram (void)
79{
wdenkc0218802003-03-27 12:09:35 +000080#ifdef CONFIG_BOARD_TYPES
81 int board_type = gd->board_type;
82#else
83 int board_type = 0; /* use dummy arg */
84#endif
85 puts ("DRAM: ");
86
87 if ((gd->ram_size = initdram (board_type)) > 0) {
88 print_size (gd->ram_size, "\n");
89 return (0);
90 }
91 puts (failed);
92 return (1);
93}
94
95static int display_banner(void)
96{
97
98 printf ("\n\n%s\n\n", version_string);
99 return (0);
100}
101
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200102#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000103static void display_flash_config(ulong size)
104{
105 puts ("Flash: ");
106 print_size (size, "\n");
107}
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100108#endif
wdenkc0218802003-03-27 12:09:35 +0000109
110static int init_baudrate (void)
111{
Wolfgang Denkf013dac2005-12-04 00:40:34 +0100112 char tmp[64]; /* long enough for environment variables */
wdenkc0218802003-03-27 12:09:35 +0000113 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
114
115 gd->baudrate = (i > 0)
116 ? (int) simple_strtoul (tmp, NULL, 10)
117 : CONFIG_BAUDRATE;
118
119 return (0);
120}
121
122
123/*
124 * Breath some life into the board...
125 *
126 * The first part of initialization is running from Flash memory;
127 * its main purpose is to initialize the RAM so that we
128 * can relocate the monitor code to RAM.
129 */
130
131/*
132 * All attempts to come up with a "common" initialization sequence
133 * that works for all boards and architectures failed: some of the
134 * requirements are just _too_ different. To get rid of the resulting
135 * mess of board dependend #ifdef'ed code we now make the whole
136 * initialization sequence configurable to the user.
137 *
138 * The requirements for any new initalization function is simple: it
139 * receives a pointer to the "global data" structure as it's only
140 * argument, and returns an integer return code, where 0 means
141 * "continue" and != 0 means "fatal error, hang the system".
142 */
143typedef int (init_fnc_t) (void);
144
145init_fnc_t *init_sequence[] = {
Stefan Roesedb08eca2008-11-12 13:18:02 +0100146 board_early_init_f,
wdenkc0218802003-03-27 12:09:35 +0000147 timer_init,
148 env_init, /* initialize environment */
wdenk7cb22f92003-12-27 19:24:54 +0000149#ifdef CONFIG_INCA_IP
150 incaip_set_cpuclk, /* set cpu clock according to environment variable */
151#endif
wdenkc0218802003-03-27 12:09:35 +0000152 init_baudrate, /* initialze baudrate settings */
153 serial_init, /* serial communications setup */
154 console_init_f,
155 display_banner, /* say that we are here */
wdenk85ec0bc2003-03-31 16:34:49 +0000156 checkboard,
wdenkc0218802003-03-27 12:09:35 +0000157 init_func_ram,
158 NULL,
159};
160
161
162void board_init_f(ulong bootflag)
163{
wdenkc0218802003-03-27 12:09:35 +0000164 gd_t gd_data, *id;
165 bd_t *bd;
166 init_fnc_t **init_fnc_ptr;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200167 ulong addr, addr_sp, len = (ulong)&uboot_end - CONFIG_SYS_MONITOR_BASE;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100168 ulong *s;
wdenk3e386912003-04-05 00:53:31 +0000169#ifdef CONFIG_PURPLE
170 void copy_code (ulong);
171#endif
wdenkc0218802003-03-27 12:09:35 +0000172
wdenk69459792004-05-29 16:53:29 +0000173 /* Pointer is writable since we allocated a register for it.
174 */
wdenkc0218802003-03-27 12:09:35 +0000175 gd = &gd_data;
wdenk93f6a672004-07-01 20:28:03 +0000176 /* compiler optimization barrier needed for GCC >= 3.4 */
177 __asm__ __volatile__("": : :"memory");
178
wdenk27b207f2003-07-24 23:38:38 +0000179 memset ((void *)gd, 0, sizeof (gd_t));
wdenkc0218802003-03-27 12:09:35 +0000180
181 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
182 if ((*init_fnc_ptr)() != 0) {
183 hang ();
184 }
185 }
186
187 /*
188 * Now that we have DRAM mapped and working, we can
189 * relocate the code and continue running from DRAM.
190 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200191 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
wdenkc0218802003-03-27 12:09:35 +0000192
wdenk69459792004-05-29 16:53:29 +0000193 /* We can reserve some RAM "on top" here.
194 */
wdenkc0218802003-03-27 12:09:35 +0000195
wdenk69459792004-05-29 16:53:29 +0000196 /* round down to next 4 kB limit.
197 */
wdenkc0218802003-03-27 12:09:35 +0000198 addr &= ~(4096 - 1);
wdenk69459792004-05-29 16:53:29 +0000199 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
wdenk8bde7f72003-06-27 21:31:46 +0000200
wdenk69459792004-05-29 16:53:29 +0000201 /* Reserve memory for U-Boot code, data & bss
202 * round down to next 16 kB limit
203 */
wdenkc0218802003-03-27 12:09:35 +0000204 addr -= len;
wdenk3b57fe02003-05-30 12:48:29 +0000205 addr &= ~(16 * 1024 - 1);
wdenkc0218802003-03-27 12:09:35 +0000206
wdenk69459792004-05-29 16:53:29 +0000207 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
wdenkc0218802003-03-27 12:09:35 +0000208
wdenk69459792004-05-29 16:53:29 +0000209 /* Reserve memory for malloc() arena.
210 */
wdenkc0218802003-03-27 12:09:35 +0000211 addr_sp = addr - TOTAL_MALLOC_LEN;
wdenk69459792004-05-29 16:53:29 +0000212 debug ("Reserving %dk for malloc() at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000213 TOTAL_MALLOC_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000214
215 /*
216 * (permanently) allocate a Board Info struct
217 * and a permanent copy of the "global" data
218 */
219 addr_sp -= sizeof(bd_t);
220 bd = (bd_t *)addr_sp;
221 gd->bd = bd;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200222 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000223 sizeof(bd_t), addr_sp);
wdenk69459792004-05-29 16:53:29 +0000224
wdenkc0218802003-03-27 12:09:35 +0000225 addr_sp -= sizeof(gd_t);
226 id = (gd_t *)addr_sp;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200227 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000228 sizeof (gd_t), addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000229
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100230 /* Reserve memory for boot params.
wdenk69459792004-05-29 16:53:29 +0000231 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200232 addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
wdenkc0218802003-03-27 12:09:35 +0000233 bd->bi_boot_params = addr_sp;
wdenk69459792004-05-29 16:53:29 +0000234 debug ("Reserving %dk for boot params() at: %08lx\n",
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200235 CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000236
237 /*
238 * Finally, we set up a new (bigger) stack.
239 *
240 * Leave some safety gap for SP, force alignment on 16 byte boundary
241 * Clear initial stack frame
242 */
243 addr_sp -= 16;
244 addr_sp &= ~0xF;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100245 s = (ulong *)addr_sp;
246 *s-- = 0;
247 *s-- = 0;
248 addr_sp = (ulong)s;
wdenk69459792004-05-29 16:53:29 +0000249 debug ("Stack Pointer at: %08lx\n", addr_sp);
250
wdenkc0218802003-03-27 12:09:35 +0000251 /*
252 * Save local variables to board info struct
253 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200254 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
wdenkc0218802003-03-27 12:09:35 +0000255 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
256 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
257
wdenk27b207f2003-07-24 23:38:38 +0000258 memcpy (id, (void *)gd, sizeof (gd_t));
wdenk3e386912003-04-05 00:53:31 +0000259
260 /* On the purple board we copy the code in a special way
261 * in order to solve flash problems
262 */
263#ifdef CONFIG_PURPLE
264 copy_code(addr);
265#endif
266
wdenkc0218802003-03-27 12:09:35 +0000267 relocate_code (addr_sp, id, addr);
268
269 /* NOTREACHED - relocate_code() does not return */
270}
271/************************************************************************
272 *
273 * This is the next part if the initialization sequence: we are now
274 * running from RAM and have a "normal" C environment, i. e. global
275 * data can be written, BSS has been cleared, the stack size in not
276 * that critical any more, etc.
277 *
278 ************************************************************************
279 */
280
281void board_init_r (gd_t *id, ulong dest_addr)
282{
wdenkc0218802003-03-27 12:09:35 +0000283 cmd_tbl_t *cmdtp;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200284#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000285 ulong size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100286#endif
wdenkc0218802003-03-27 12:09:35 +0000287 extern void malloc_bin_reloc (void);
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200288#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000289 extern char * env_name_spec;
290#endif
Shinya Kuribayashic06326c2009-05-16 09:12:09 +0900291 char *s;
wdenkc0218802003-03-27 12:09:35 +0000292 bd_t *bd;
wdenkc0218802003-03-27 12:09:35 +0000293
294 gd = id;
295 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
296
wdenk69459792004-05-29 16:53:29 +0000297 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
wdenkc0218802003-03-27 12:09:35 +0000298
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200299 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
wdenkc0218802003-03-27 12:09:35 +0000300
wdenk3b57fe02003-05-30 12:48:29 +0000301 monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
302
wdenkc0218802003-03-27 12:09:35 +0000303 /*
304 * We have to relocate the command table manually
305 */
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100306 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
wdenkc0218802003-03-27 12:09:35 +0000307 ulong addr;
308
309 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
310#if 0
311 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
312 cmdtp->name, (ulong) (cmdtp->cmd), addr);
313#endif
314 cmdtp->cmd =
315 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
316
317 addr = (ulong)(cmdtp->name) + gd->reloc_off;
318 cmdtp->name = (char *)addr;
319
320 if (cmdtp->usage) {
321 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
322 cmdtp->usage = (char *)addr;
323 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200324#ifdef CONFIG_SYS_LONGHELP
wdenkc0218802003-03-27 12:09:35 +0000325 if (cmdtp->help) {
326 addr = (ulong)(cmdtp->help) + gd->reloc_off;
327 cmdtp->help = (char *)addr;
328 }
329#endif
330 }
331 /* there are some other pointer constants we must deal with */
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200332#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000333 env_name_spec += gd->reloc_off;
334#endif
wdenk8bde7f72003-06-27 21:31:46 +0000335
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100336 bd = gd->bd;
337
Peter Tyserbdb28022009-08-21 23:05:21 -0500338 /* The Malloc area is immediately below the monitor copy in DRAM */
Peter Tyser832f4372009-08-21 23:05:20 -0500339 mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
340 TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN);
Stefan Roesec790b042009-05-11 15:50:12 +0200341 malloc_bin_reloc();
342
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200343#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000344 /* configure available FLASH banks */
345 size = flash_init();
346 display_flash_config (size);
wdenkc0218802003-03-27 12:09:35 +0000347 bd->bi_flashsize = size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100348#endif
349
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200350 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
351#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
wdenk3b57fe02003-05-30 12:48:29 +0000352 bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
wdenkc0218802003-03-27 12:09:35 +0000353#else
354 bd->bi_flashoffset = 0;
355#endif
356
Stefan Roese9d23fc52008-11-12 13:18:19 +0100357#ifdef CONFIG_CMD_NAND
358 puts ("NAND: ");
359 nand_init (); /* go init the NAND */
360#endif
361
362#if defined(CONFIG_CMD_ONENAND)
363 onenand_init();
364#endif
365
wdenkc0218802003-03-27 12:09:35 +0000366 /* relocate environment function pointers etc. */
367 env_relocate();
368
wdenkc0218802003-03-27 12:09:35 +0000369 /* IP Address */
370 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
371
wdenkf4863a72004-02-07 01:27:10 +0000372#if defined(CONFIG_PCI)
373 /*
374 * Do pci configuration
375 */
376 pci_init();
377#endif
378
wdenkc0218802003-03-27 12:09:35 +0000379/** leave this here (after malloc(), environment and PCI are working) **/
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200380 /* Initialize stdio devices */
381 stdio_init ();
wdenkc0218802003-03-27 12:09:35 +0000382
wdenk27b207f2003-07-24 23:38:38 +0000383 jumptable_init ();
wdenkc0218802003-03-27 12:09:35 +0000384
385 /* Initialize the console (after the relocation and devices init) */
386 console_init_r ();
387/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
388
wdenk3e386912003-04-05 00:53:31 +0000389 /* Initialize from environment */
390 if ((s = getenv ("loadaddr")) != NULL) {
391 load_addr = simple_strtoul (s, NULL, 16);
392 }
Jon Loeliger7def6b32007-07-09 18:02:11 -0500393#if defined(CONFIG_CMD_NET)
wdenk3e386912003-04-05 00:53:31 +0000394 if ((s = getenv ("bootfile")) != NULL) {
395 copy_filename (BootFile, s, sizeof (BootFile));
396 }
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500397#endif
wdenk3e386912003-04-05 00:53:31 +0000398
Jason McMullan89a15502008-05-30 00:53:37 +0900399#ifdef CONFIG_CMD_SPI
400 puts ("SPI: ");
401 spi_init (); /* go init the SPI */
402 puts ("ready\n");
403#endif
404
wdenk3e386912003-04-05 00:53:31 +0000405#if defined(CONFIG_MISC_INIT_R)
406 /* miscellaneous platform dependent initialisations */
407 misc_init_r ();
408#endif
409
Jon Loeliger7def6b32007-07-09 18:02:11 -0500410#if defined(CONFIG_CMD_NET)
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200411#if defined(CONFIG_NET_MULTI)
wdenkc0218802003-03-27 12:09:35 +0000412 puts ("Net: ");
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200413#endif
wdenkc0218802003-03-27 12:09:35 +0000414 eth_initialize(gd->bd);
415#endif
416
417 /* main_loop() can return to retry autoboot, if so just run it again. */
418 for (;;) {
419 main_loop ();
420 }
421
422 /* NOTREACHED - no way out of command loop except booting */
423}
424
425void hang (void)
426{
427 puts ("### ERROR ### Please RESET the board ###\n");
428 for (;;);
429}