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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/*
78 * The Malloc area is immediately below the monitor copy in DRAM
79 */
80static void mem_malloc_init (void)
81{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020082 ulong dest_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
wdenkc0218802003-03-27 12:09:35 +000083
84 mem_malloc_end = dest_addr;
85 mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
86 mem_malloc_brk = mem_malloc_start;
87
88 memset ((void *) mem_malloc_start,
89 0,
90 mem_malloc_end - mem_malloc_start);
91}
92
wdenkc0218802003-03-27 12:09:35 +000093
94static int init_func_ram (void)
95{
wdenkc0218802003-03-27 12:09:35 +000096#ifdef CONFIG_BOARD_TYPES
97 int board_type = gd->board_type;
98#else
99 int board_type = 0; /* use dummy arg */
100#endif
101 puts ("DRAM: ");
102
103 if ((gd->ram_size = initdram (board_type)) > 0) {
104 print_size (gd->ram_size, "\n");
105 return (0);
106 }
107 puts (failed);
108 return (1);
109}
110
111static int display_banner(void)
112{
113
114 printf ("\n\n%s\n\n", version_string);
115 return (0);
116}
117
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200118#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000119static void display_flash_config(ulong size)
120{
121 puts ("Flash: ");
122 print_size (size, "\n");
123}
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100124#endif
wdenkc0218802003-03-27 12:09:35 +0000125
126static int init_baudrate (void)
127{
Wolfgang Denkf013dac2005-12-04 00:40:34 +0100128 char tmp[64]; /* long enough for environment variables */
wdenkc0218802003-03-27 12:09:35 +0000129 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
130
131 gd->baudrate = (i > 0)
132 ? (int) simple_strtoul (tmp, NULL, 10)
133 : CONFIG_BAUDRATE;
134
135 return (0);
136}
137
138
139/*
140 * Breath some life into the board...
141 *
142 * The first part of initialization is running from Flash memory;
143 * its main purpose is to initialize the RAM so that we
144 * can relocate the monitor code to RAM.
145 */
146
147/*
148 * All attempts to come up with a "common" initialization sequence
149 * that works for all boards and architectures failed: some of the
150 * requirements are just _too_ different. To get rid of the resulting
151 * mess of board dependend #ifdef'ed code we now make the whole
152 * initialization sequence configurable to the user.
153 *
154 * The requirements for any new initalization function is simple: it
155 * receives a pointer to the "global data" structure as it's only
156 * argument, and returns an integer return code, where 0 means
157 * "continue" and != 0 means "fatal error, hang the system".
158 */
159typedef int (init_fnc_t) (void);
160
161init_fnc_t *init_sequence[] = {
Stefan Roesedb08eca2008-11-12 13:18:02 +0100162 board_early_init_f,
wdenkc0218802003-03-27 12:09:35 +0000163 timer_init,
164 env_init, /* initialize environment */
wdenk7cb22f92003-12-27 19:24:54 +0000165#ifdef CONFIG_INCA_IP
166 incaip_set_cpuclk, /* set cpu clock according to environment variable */
167#endif
wdenkc0218802003-03-27 12:09:35 +0000168 init_baudrate, /* initialze baudrate settings */
169 serial_init, /* serial communications setup */
170 console_init_f,
171 display_banner, /* say that we are here */
wdenk85ec0bc2003-03-31 16:34:49 +0000172 checkboard,
wdenkc0218802003-03-27 12:09:35 +0000173 init_func_ram,
174 NULL,
175};
176
177
178void board_init_f(ulong bootflag)
179{
wdenkc0218802003-03-27 12:09:35 +0000180 gd_t gd_data, *id;
181 bd_t *bd;
182 init_fnc_t **init_fnc_ptr;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200183 ulong addr, addr_sp, len = (ulong)&uboot_end - CONFIG_SYS_MONITOR_BASE;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100184 ulong *s;
wdenk3e386912003-04-05 00:53:31 +0000185#ifdef CONFIG_PURPLE
186 void copy_code (ulong);
187#endif
wdenkc0218802003-03-27 12:09:35 +0000188
wdenk69459792004-05-29 16:53:29 +0000189 /* Pointer is writable since we allocated a register for it.
190 */
wdenkc0218802003-03-27 12:09:35 +0000191 gd = &gd_data;
wdenk93f6a672004-07-01 20:28:03 +0000192 /* compiler optimization barrier needed for GCC >= 3.4 */
193 __asm__ __volatile__("": : :"memory");
194
wdenk27b207f2003-07-24 23:38:38 +0000195 memset ((void *)gd, 0, sizeof (gd_t));
wdenkc0218802003-03-27 12:09:35 +0000196
197 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
198 if ((*init_fnc_ptr)() != 0) {
199 hang ();
200 }
201 }
202
203 /*
204 * Now that we have DRAM mapped and working, we can
205 * relocate the code and continue running from DRAM.
206 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200207 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
wdenkc0218802003-03-27 12:09:35 +0000208
wdenk69459792004-05-29 16:53:29 +0000209 /* We can reserve some RAM "on top" here.
210 */
wdenkc0218802003-03-27 12:09:35 +0000211
wdenk69459792004-05-29 16:53:29 +0000212 /* round down to next 4 kB limit.
213 */
wdenkc0218802003-03-27 12:09:35 +0000214 addr &= ~(4096 - 1);
wdenk69459792004-05-29 16:53:29 +0000215 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
wdenk8bde7f72003-06-27 21:31:46 +0000216
wdenk69459792004-05-29 16:53:29 +0000217 /* Reserve memory for U-Boot code, data & bss
218 * round down to next 16 kB limit
219 */
wdenkc0218802003-03-27 12:09:35 +0000220 addr -= len;
wdenk3b57fe02003-05-30 12:48:29 +0000221 addr &= ~(16 * 1024 - 1);
wdenkc0218802003-03-27 12:09:35 +0000222
wdenk69459792004-05-29 16:53:29 +0000223 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
wdenkc0218802003-03-27 12:09:35 +0000224
wdenk69459792004-05-29 16:53:29 +0000225 /* Reserve memory for malloc() arena.
226 */
wdenkc0218802003-03-27 12:09:35 +0000227 addr_sp = addr - TOTAL_MALLOC_LEN;
wdenk69459792004-05-29 16:53:29 +0000228 debug ("Reserving %dk for malloc() at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000229 TOTAL_MALLOC_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000230
231 /*
232 * (permanently) allocate a Board Info struct
233 * and a permanent copy of the "global" data
234 */
235 addr_sp -= sizeof(bd_t);
236 bd = (bd_t *)addr_sp;
237 gd->bd = bd;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200238 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000239 sizeof(bd_t), addr_sp);
wdenk69459792004-05-29 16:53:29 +0000240
wdenkc0218802003-03-27 12:09:35 +0000241 addr_sp -= sizeof(gd_t);
242 id = (gd_t *)addr_sp;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200243 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000244 sizeof (gd_t), addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000245
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100246 /* Reserve memory for boot params.
wdenk69459792004-05-29 16:53:29 +0000247 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200248 addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
wdenkc0218802003-03-27 12:09:35 +0000249 bd->bi_boot_params = addr_sp;
wdenk69459792004-05-29 16:53:29 +0000250 debug ("Reserving %dk for boot params() at: %08lx\n",
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200251 CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000252
253 /*
254 * Finally, we set up a new (bigger) stack.
255 *
256 * Leave some safety gap for SP, force alignment on 16 byte boundary
257 * Clear initial stack frame
258 */
259 addr_sp -= 16;
260 addr_sp &= ~0xF;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100261 s = (ulong *)addr_sp;
262 *s-- = 0;
263 *s-- = 0;
264 addr_sp = (ulong)s;
wdenk69459792004-05-29 16:53:29 +0000265 debug ("Stack Pointer at: %08lx\n", addr_sp);
266
wdenkc0218802003-03-27 12:09:35 +0000267 /*
268 * Save local variables to board info struct
269 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200270 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
wdenkc0218802003-03-27 12:09:35 +0000271 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
272 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
273
wdenk27b207f2003-07-24 23:38:38 +0000274 memcpy (id, (void *)gd, sizeof (gd_t));
wdenk3e386912003-04-05 00:53:31 +0000275
276 /* On the purple board we copy the code in a special way
277 * in order to solve flash problems
278 */
279#ifdef CONFIG_PURPLE
280 copy_code(addr);
281#endif
282
wdenkc0218802003-03-27 12:09:35 +0000283 relocate_code (addr_sp, id, addr);
284
285 /* NOTREACHED - relocate_code() does not return */
286}
287/************************************************************************
288 *
289 * This is the next part if the initialization sequence: we are now
290 * running from RAM and have a "normal" C environment, i. e. global
291 * data can be written, BSS has been cleared, the stack size in not
292 * that critical any more, etc.
293 *
294 ************************************************************************
295 */
296
297void board_init_r (gd_t *id, ulong dest_addr)
298{
wdenkc0218802003-03-27 12:09:35 +0000299 cmd_tbl_t *cmdtp;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200300#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000301 ulong size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100302#endif
wdenkc0218802003-03-27 12:09:35 +0000303 extern void malloc_bin_reloc (void);
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200304#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000305 extern char * env_name_spec;
306#endif
Shinya Kuribayashic06326c2009-05-16 09:12:09 +0900307 char *s;
wdenkc0218802003-03-27 12:09:35 +0000308 bd_t *bd;
wdenkc0218802003-03-27 12:09:35 +0000309
310 gd = id;
311 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
312
wdenk69459792004-05-29 16:53:29 +0000313 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
wdenkc0218802003-03-27 12:09:35 +0000314
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200315 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
wdenkc0218802003-03-27 12:09:35 +0000316
wdenk3b57fe02003-05-30 12:48:29 +0000317 monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
318
wdenkc0218802003-03-27 12:09:35 +0000319 /*
320 * We have to relocate the command table manually
321 */
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100322 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
wdenkc0218802003-03-27 12:09:35 +0000323 ulong addr;
324
325 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
326#if 0
327 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
328 cmdtp->name, (ulong) (cmdtp->cmd), addr);
329#endif
330 cmdtp->cmd =
331 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
332
333 addr = (ulong)(cmdtp->name) + gd->reloc_off;
334 cmdtp->name = (char *)addr;
335
336 if (cmdtp->usage) {
337 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
338 cmdtp->usage = (char *)addr;
339 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200340#ifdef CONFIG_SYS_LONGHELP
wdenkc0218802003-03-27 12:09:35 +0000341 if (cmdtp->help) {
342 addr = (ulong)(cmdtp->help) + gd->reloc_off;
343 cmdtp->help = (char *)addr;
344 }
345#endif
346 }
347 /* there are some other pointer constants we must deal with */
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200348#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000349 env_name_spec += gd->reloc_off;
350#endif
wdenk8bde7f72003-06-27 21:31:46 +0000351
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100352 bd = gd->bd;
353
Stefan Roesec790b042009-05-11 15:50:12 +0200354 /* initialize malloc() area */
355 mem_malloc_init();
356 malloc_bin_reloc();
357
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200358#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000359 /* configure available FLASH banks */
360 size = flash_init();
361 display_flash_config (size);
wdenkc0218802003-03-27 12:09:35 +0000362 bd->bi_flashsize = size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100363#endif
364
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200365 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
366#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
wdenk3b57fe02003-05-30 12:48:29 +0000367 bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
wdenkc0218802003-03-27 12:09:35 +0000368#else
369 bd->bi_flashoffset = 0;
370#endif
371
Stefan Roese9d23fc52008-11-12 13:18:19 +0100372#ifdef CONFIG_CMD_NAND
373 puts ("NAND: ");
374 nand_init (); /* go init the NAND */
375#endif
376
377#if defined(CONFIG_CMD_ONENAND)
378 onenand_init();
379#endif
380
wdenkc0218802003-03-27 12:09:35 +0000381 /* relocate environment function pointers etc. */
382 env_relocate();
383
wdenkc0218802003-03-27 12:09:35 +0000384 /* IP Address */
385 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
386
wdenkf4863a72004-02-07 01:27:10 +0000387#if defined(CONFIG_PCI)
388 /*
389 * Do pci configuration
390 */
391 pci_init();
392#endif
393
wdenkc0218802003-03-27 12:09:35 +0000394/** leave this here (after malloc(), environment and PCI are working) **/
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200395 /* Initialize stdio devices */
396 stdio_init ();
wdenkc0218802003-03-27 12:09:35 +0000397
wdenk27b207f2003-07-24 23:38:38 +0000398 jumptable_init ();
wdenkc0218802003-03-27 12:09:35 +0000399
400 /* Initialize the console (after the relocation and devices init) */
401 console_init_r ();
402/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
403
wdenk3e386912003-04-05 00:53:31 +0000404 /* Initialize from environment */
405 if ((s = getenv ("loadaddr")) != NULL) {
406 load_addr = simple_strtoul (s, NULL, 16);
407 }
Jon Loeliger7def6b32007-07-09 18:02:11 -0500408#if defined(CONFIG_CMD_NET)
wdenk3e386912003-04-05 00:53:31 +0000409 if ((s = getenv ("bootfile")) != NULL) {
410 copy_filename (BootFile, s, sizeof (BootFile));
411 }
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500412#endif
wdenk3e386912003-04-05 00:53:31 +0000413
Jason McMullan89a15502008-05-30 00:53:37 +0900414#ifdef CONFIG_CMD_SPI
415 puts ("SPI: ");
416 spi_init (); /* go init the SPI */
417 puts ("ready\n");
418#endif
419
wdenk3e386912003-04-05 00:53:31 +0000420#if defined(CONFIG_MISC_INIT_R)
421 /* miscellaneous platform dependent initialisations */
422 misc_init_r ();
423#endif
424
Jon Loeliger7def6b32007-07-09 18:02:11 -0500425#if defined(CONFIG_CMD_NET)
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200426#if defined(CONFIG_NET_MULTI)
wdenkc0218802003-03-27 12:09:35 +0000427 puts ("Net: ");
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200428#endif
wdenkc0218802003-03-27 12:09:35 +0000429 eth_initialize(gd->bd);
430#endif
431
432 /* main_loop() can return to retry autoboot, if so just run it again. */
433 for (;;) {
434 main_loop ();
435 }
436
437 /* NOTREACHED - no way out of command loop except booting */
438}
439
440void hang (void)
441{
442 puts ("### ERROR ### Please RESET the board ###\n");
443 for (;;);
444}