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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
Luigi 'Comio' Mantellini310cecb2009-10-10 12:42:21 +020036#ifdef CONFIG_BITBANGMII
37#include <miiphy.h>
38#endif
39
Wolfgang Denkc75eba32005-12-01 02:15:07 +010040DECLARE_GLOBAL_DATA_PTR;
41
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020042#if ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
43 (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
Jean-Christophe PLAGNIOL-VILLARD9314cee2008-09-10 22:47:59 +020044 defined(CONFIG_ENV_IS_IN_NVRAM)
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020045#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
wdenkc0218802003-03-27 12:09:35 +000046#else
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020047#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
wdenkc0218802003-03-27 12:09:35 +000048#endif
49
50#undef DEBUG
51
52extern int timer_init(void);
53
wdenk7cb22f92003-12-27 19:24:54 +000054extern int incaip_set_cpuclk(void);
55
wdenk3b57fe02003-05-30 12:48:29 +000056extern ulong uboot_end_data;
57extern ulong uboot_end;
58
59ulong monitor_flash_len;
60
wdenkc0218802003-03-27 12:09:35 +000061const char version_string[] =
Peter Tyser561858e2008-11-03 09:30:59 -060062 U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")";
wdenkc0218802003-03-27 12:09:35 +000063
64static char *failed = "*** failed ***\n";
65
66/*
Jean-Christophe PLAGNIOL-VILLARD5c150102007-11-13 09:11:05 +010067 * mips_io_port_base is the begin of the address space to which x86 style
68 * I/O ports are mapped.
69 */
70unsigned long mips_io_port_base = -1;
wdenkc0218802003-03-27 12:09:35 +000071
Stefan Roesedb08eca2008-11-12 13:18:02 +010072int __board_early_init_f(void)
73{
74 /*
75 * Nothing to do in this dummy implementation
76 */
77 return 0;
78}
79int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f")));
80
wdenkc0218802003-03-27 12:09:35 +000081
82static int init_func_ram (void)
83{
wdenkc0218802003-03-27 12:09:35 +000084#ifdef CONFIG_BOARD_TYPES
85 int board_type = gd->board_type;
86#else
87 int board_type = 0; /* use dummy arg */
88#endif
89 puts ("DRAM: ");
90
91 if ((gd->ram_size = initdram (board_type)) > 0) {
92 print_size (gd->ram_size, "\n");
93 return (0);
94 }
95 puts (failed);
96 return (1);
97}
98
99static int display_banner(void)
100{
101
102 printf ("\n\n%s\n\n", version_string);
103 return (0);
104}
105
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200106#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000107static void display_flash_config(ulong size)
108{
109 puts ("Flash: ");
110 print_size (size, "\n");
111}
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100112#endif
wdenkc0218802003-03-27 12:09:35 +0000113
114static int init_baudrate (void)
115{
Wolfgang Denkf013dac2005-12-04 00:40:34 +0100116 char tmp[64]; /* long enough for environment variables */
wdenkc0218802003-03-27 12:09:35 +0000117 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
118
119 gd->baudrate = (i > 0)
120 ? (int) simple_strtoul (tmp, NULL, 10)
121 : CONFIG_BAUDRATE;
122
123 return (0);
124}
125
126
127/*
128 * Breath some life into the board...
129 *
130 * The first part of initialization is running from Flash memory;
131 * its main purpose is to initialize the RAM so that we
132 * can relocate the monitor code to RAM.
133 */
134
135/*
136 * All attempts to come up with a "common" initialization sequence
137 * that works for all boards and architectures failed: some of the
138 * requirements are just _too_ different. To get rid of the resulting
139 * mess of board dependend #ifdef'ed code we now make the whole
140 * initialization sequence configurable to the user.
141 *
142 * The requirements for any new initalization function is simple: it
143 * receives a pointer to the "global data" structure as it's only
144 * argument, and returns an integer return code, where 0 means
145 * "continue" and != 0 means "fatal error, hang the system".
146 */
147typedef int (init_fnc_t) (void);
148
149init_fnc_t *init_sequence[] = {
Stefan Roesedb08eca2008-11-12 13:18:02 +0100150 board_early_init_f,
wdenkc0218802003-03-27 12:09:35 +0000151 timer_init,
152 env_init, /* initialize environment */
wdenk7cb22f92003-12-27 19:24:54 +0000153#ifdef CONFIG_INCA_IP
154 incaip_set_cpuclk, /* set cpu clock according to environment variable */
155#endif
wdenkc0218802003-03-27 12:09:35 +0000156 init_baudrate, /* initialze baudrate settings */
157 serial_init, /* serial communications setup */
158 console_init_f,
159 display_banner, /* say that we are here */
wdenk85ec0bc2003-03-31 16:34:49 +0000160 checkboard,
wdenkc0218802003-03-27 12:09:35 +0000161 init_func_ram,
162 NULL,
163};
164
165
166void board_init_f(ulong bootflag)
167{
wdenkc0218802003-03-27 12:09:35 +0000168 gd_t gd_data, *id;
169 bd_t *bd;
170 init_fnc_t **init_fnc_ptr;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200171 ulong addr, addr_sp, len = (ulong)&uboot_end - CONFIG_SYS_MONITOR_BASE;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100172 ulong *s;
wdenk3e386912003-04-05 00:53:31 +0000173#ifdef CONFIG_PURPLE
174 void copy_code (ulong);
175#endif
wdenkc0218802003-03-27 12:09:35 +0000176
wdenk69459792004-05-29 16:53:29 +0000177 /* Pointer is writable since we allocated a register for it.
178 */
wdenkc0218802003-03-27 12:09:35 +0000179 gd = &gd_data;
wdenk93f6a672004-07-01 20:28:03 +0000180 /* compiler optimization barrier needed for GCC >= 3.4 */
181 __asm__ __volatile__("": : :"memory");
182
wdenk27b207f2003-07-24 23:38:38 +0000183 memset ((void *)gd, 0, sizeof (gd_t));
wdenkc0218802003-03-27 12:09:35 +0000184
185 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
186 if ((*init_fnc_ptr)() != 0) {
187 hang ();
188 }
189 }
190
191 /*
192 * Now that we have DRAM mapped and working, we can
193 * relocate the code and continue running from DRAM.
194 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200195 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
wdenkc0218802003-03-27 12:09:35 +0000196
wdenk69459792004-05-29 16:53:29 +0000197 /* We can reserve some RAM "on top" here.
198 */
wdenkc0218802003-03-27 12:09:35 +0000199
wdenk69459792004-05-29 16:53:29 +0000200 /* round down to next 4 kB limit.
201 */
wdenkc0218802003-03-27 12:09:35 +0000202 addr &= ~(4096 - 1);
wdenk69459792004-05-29 16:53:29 +0000203 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
wdenk8bde7f72003-06-27 21:31:46 +0000204
wdenk69459792004-05-29 16:53:29 +0000205 /* Reserve memory for U-Boot code, data & bss
206 * round down to next 16 kB limit
207 */
wdenkc0218802003-03-27 12:09:35 +0000208 addr -= len;
wdenk3b57fe02003-05-30 12:48:29 +0000209 addr &= ~(16 * 1024 - 1);
wdenkc0218802003-03-27 12:09:35 +0000210
wdenk69459792004-05-29 16:53:29 +0000211 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
wdenkc0218802003-03-27 12:09:35 +0000212
wdenk69459792004-05-29 16:53:29 +0000213 /* Reserve memory for malloc() arena.
214 */
wdenkc0218802003-03-27 12:09:35 +0000215 addr_sp = addr - TOTAL_MALLOC_LEN;
wdenk69459792004-05-29 16:53:29 +0000216 debug ("Reserving %dk for malloc() at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000217 TOTAL_MALLOC_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000218
219 /*
220 * (permanently) allocate a Board Info struct
221 * and a permanent copy of the "global" data
222 */
223 addr_sp -= sizeof(bd_t);
224 bd = (bd_t *)addr_sp;
225 gd->bd = bd;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200226 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000227 sizeof(bd_t), addr_sp);
wdenk69459792004-05-29 16:53:29 +0000228
wdenkc0218802003-03-27 12:09:35 +0000229 addr_sp -= sizeof(gd_t);
230 id = (gd_t *)addr_sp;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200231 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000232 sizeof (gd_t), addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000233
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100234 /* Reserve memory for boot params.
wdenk69459792004-05-29 16:53:29 +0000235 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200236 addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
wdenkc0218802003-03-27 12:09:35 +0000237 bd->bi_boot_params = addr_sp;
wdenk69459792004-05-29 16:53:29 +0000238 debug ("Reserving %dk for boot params() at: %08lx\n",
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200239 CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000240
241 /*
242 * Finally, we set up a new (bigger) stack.
243 *
244 * Leave some safety gap for SP, force alignment on 16 byte boundary
245 * Clear initial stack frame
246 */
247 addr_sp -= 16;
248 addr_sp &= ~0xF;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100249 s = (ulong *)addr_sp;
250 *s-- = 0;
251 *s-- = 0;
252 addr_sp = (ulong)s;
wdenk69459792004-05-29 16:53:29 +0000253 debug ("Stack Pointer at: %08lx\n", addr_sp);
254
wdenkc0218802003-03-27 12:09:35 +0000255 /*
256 * Save local variables to board info struct
257 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200258 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
wdenkc0218802003-03-27 12:09:35 +0000259 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
260 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
261
wdenk27b207f2003-07-24 23:38:38 +0000262 memcpy (id, (void *)gd, sizeof (gd_t));
wdenk3e386912003-04-05 00:53:31 +0000263
264 /* On the purple board we copy the code in a special way
265 * in order to solve flash problems
266 */
267#ifdef CONFIG_PURPLE
268 copy_code(addr);
269#endif
270
wdenkc0218802003-03-27 12:09:35 +0000271 relocate_code (addr_sp, id, addr);
272
273 /* NOTREACHED - relocate_code() does not return */
274}
275/************************************************************************
276 *
277 * This is the next part if the initialization sequence: we are now
278 * running from RAM and have a "normal" C environment, i. e. global
279 * data can be written, BSS has been cleared, the stack size in not
280 * that critical any more, etc.
281 *
282 ************************************************************************
283 */
284
285void board_init_r (gd_t *id, ulong dest_addr)
286{
wdenkc0218802003-03-27 12:09:35 +0000287 cmd_tbl_t *cmdtp;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200288#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000289 ulong size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100290#endif
wdenkc0218802003-03-27 12:09:35 +0000291 extern void malloc_bin_reloc (void);
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200292#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000293 extern char * env_name_spec;
294#endif
Shinya Kuribayashic06326c2009-05-16 09:12:09 +0900295 char *s;
wdenkc0218802003-03-27 12:09:35 +0000296 bd_t *bd;
wdenkc0218802003-03-27 12:09:35 +0000297
298 gd = id;
299 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
300
wdenk69459792004-05-29 16:53:29 +0000301 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
wdenkc0218802003-03-27 12:09:35 +0000302
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200303 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
wdenkc0218802003-03-27 12:09:35 +0000304
wdenk3b57fe02003-05-30 12:48:29 +0000305 monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
306
wdenkc0218802003-03-27 12:09:35 +0000307 /*
308 * We have to relocate the command table manually
309 */
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100310 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
wdenkc0218802003-03-27 12:09:35 +0000311 ulong addr;
312
313 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
314#if 0
315 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
316 cmdtp->name, (ulong) (cmdtp->cmd), addr);
317#endif
318 cmdtp->cmd =
319 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
320
321 addr = (ulong)(cmdtp->name) + gd->reloc_off;
322 cmdtp->name = (char *)addr;
323
324 if (cmdtp->usage) {
325 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
326 cmdtp->usage = (char *)addr;
327 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200328#ifdef CONFIG_SYS_LONGHELP
wdenkc0218802003-03-27 12:09:35 +0000329 if (cmdtp->help) {
330 addr = (ulong)(cmdtp->help) + gd->reloc_off;
331 cmdtp->help = (char *)addr;
332 }
333#endif
334 }
335 /* there are some other pointer constants we must deal with */
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200336#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000337 env_name_spec += gd->reloc_off;
338#endif
wdenk8bde7f72003-06-27 21:31:46 +0000339
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100340 bd = gd->bd;
341
Peter Tyserd4e8ada2009-08-21 23:05:21 -0500342 /* The Malloc area is immediately below the monitor copy in DRAM */
Peter Tysera483a162009-08-21 23:05:20 -0500343 mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
344 TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN);
Stefan Roesec790b042009-05-11 15:50:12 +0200345 malloc_bin_reloc();
346
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200347#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000348 /* configure available FLASH banks */
349 size = flash_init();
350 display_flash_config (size);
wdenkc0218802003-03-27 12:09:35 +0000351 bd->bi_flashsize = size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100352#endif
353
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200354 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
355#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
wdenk3b57fe02003-05-30 12:48:29 +0000356 bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
wdenkc0218802003-03-27 12:09:35 +0000357#else
358 bd->bi_flashoffset = 0;
359#endif
360
Stefan Roese9d23fc52008-11-12 13:18:19 +0100361#ifdef CONFIG_CMD_NAND
362 puts ("NAND: ");
363 nand_init (); /* go init the NAND */
364#endif
365
366#if defined(CONFIG_CMD_ONENAND)
367 onenand_init();
368#endif
369
wdenkc0218802003-03-27 12:09:35 +0000370 /* relocate environment function pointers etc. */
371 env_relocate();
372
wdenkc0218802003-03-27 12:09:35 +0000373 /* IP Address */
374 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
375
wdenkf4863a72004-02-07 01:27:10 +0000376#if defined(CONFIG_PCI)
377 /*
378 * Do pci configuration
379 */
380 pci_init();
381#endif
382
wdenkc0218802003-03-27 12:09:35 +0000383/** leave this here (after malloc(), environment and PCI are working) **/
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200384 /* Initialize stdio devices */
385 stdio_init ();
wdenkc0218802003-03-27 12:09:35 +0000386
wdenk27b207f2003-07-24 23:38:38 +0000387 jumptable_init ();
wdenkc0218802003-03-27 12:09:35 +0000388
389 /* Initialize the console (after the relocation and devices init) */
390 console_init_r ();
391/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
392
wdenk3e386912003-04-05 00:53:31 +0000393 /* Initialize from environment */
394 if ((s = getenv ("loadaddr")) != NULL) {
395 load_addr = simple_strtoul (s, NULL, 16);
396 }
Jon Loeliger7def6b32007-07-09 18:02:11 -0500397#if defined(CONFIG_CMD_NET)
wdenk3e386912003-04-05 00:53:31 +0000398 if ((s = getenv ("bootfile")) != NULL) {
399 copy_filename (BootFile, s, sizeof (BootFile));
400 }
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500401#endif
wdenk3e386912003-04-05 00:53:31 +0000402
Jason McMullan89a15502008-05-30 00:53:37 +0900403#ifdef CONFIG_CMD_SPI
404 puts ("SPI: ");
405 spi_init (); /* go init the SPI */
406 puts ("ready\n");
407#endif
408
wdenk3e386912003-04-05 00:53:31 +0000409#if defined(CONFIG_MISC_INIT_R)
410 /* miscellaneous platform dependent initialisations */
411 misc_init_r ();
412#endif
413
Luigi 'Comio' Mantellini310cecb2009-10-10 12:42:21 +0200414#ifdef CONFIG_BITBANGMII
415 bb_miiphy_init();
416#endif
Jon Loeliger7def6b32007-07-09 18:02:11 -0500417#if defined(CONFIG_CMD_NET)
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200418#if defined(CONFIG_NET_MULTI)
wdenkc0218802003-03-27 12:09:35 +0000419 puts ("Net: ");
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200420#endif
wdenkc0218802003-03-27 12:09:35 +0000421 eth_initialize(gd->bd);
422#endif
423
424 /* main_loop() can return to retry autoboot, if so just run it again. */
425 for (;;) {
426 main_loop ();
427 }
428
429 /* NOTREACHED - no way out of command loop except booting */
430}
431
432void hang (void)
433{
434 puts ("### ERROR ### Please RESET the board ###\n");
435 for (;;);
436}