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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>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020031#include <stdio_dev.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>
Marcel Ziswilerb71190f2008-05-01 09:05:26 +020048#include <serial.h>
Jon Loeliger7def6b32007-07-09 18:02:11 -050049#if defined(CONFIG_CMD_BEDBUG)
wdenk4e5ca3e2003-12-08 01:34:36 +000050#include <cmd_bedbug.h>
51#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020052#ifdef CONFIG_SYS_ALLOC_DPRAM
wdenk4e5ca3e2003-12-08 01:34:36 +000053#include <commproc.h>
54#endif
55#include <version.h>
56
stroesee2c22d72004-12-16 17:55:22 +000057#if defined(CONFIG_HARD_I2C) || \
58 defined(CONFIG_SOFT_I2C)
59#include <i2c.h>
60#endif
61
TsiChung Liewa7323bb2008-07-23 17:53:36 -050062#ifdef CONFIG_CMD_SPI
63#include <spi.h>
64#endif
65
Luigi 'Comio' Mantellini310cecb2009-10-10 12:42:21 +020066#ifdef CONFIG_BITBANGMII
67#include <miiphy.h>
68#endif
69
TsiChung Liewab6ba842008-08-13 12:07:03 +000070#include <nand.h>
71
Wolfgang Denkd87080b2006-03-31 18:32:53 +020072DECLARE_GLOBAL_DATA_PTR;
73
wdenk4e5ca3e2003-12-08 01:34:36 +000074static char *failed = "*** failed ***\n";
75
wdenkbf9e3b32004-02-12 00:47:09 +000076#include <environment.h>
77
wdenkbf9e3b32004-02-12 00:47:09 +000078extern ulong __init_end;
Po-Yu Chuang44c6e652011-03-01 22:59:59 +000079extern ulong __bss_end__;
wdenkbf9e3b32004-02-12 00:47:09 +000080
81extern void timer_init(void);
82
83#if defined(CONFIG_WATCHDOG)
84# define INIT_FUNC_WATCHDOG_INIT watchdog_init,
85# define WATCHDOG_DISABLE watchdog_disable
86
87extern int watchdog_init(void);
88extern int watchdog_disable(void);
89#else
90# define INIT_FUNC_WATCHDOG_INIT /* undef */
91# define WATCHDOG_DISABLE /* undef */
92#endif /* CONFIG_WATCHDOG */
93
94ulong monitor_flash_len;
95
wdenk4e5ca3e2003-12-08 01:34:36 +000096/************************************************************************
97 * Utilities *
98 ************************************************************************
99 */
100
101/*
wdenkbf9e3b32004-02-12 00:47:09 +0000102 * All attempts to come up with a "common" initialization sequence
103 * that works for all boards and architectures failed: some of the
104 * requirements are just _too_ different. To get rid of the resulting
105 * mess of board dependend #ifdef'ed code we now make the whole
106 * initialization sequence configurable to the user.
107 *
108 * The requirements for any new initalization function is simple: it
109 * receives a pointer to the "global data" structure as it's only
110 * argument, and returns an integer return code, where 0 means
111 * "continue" and != 0 means "fatal error, hang the system".
112 */
113typedef int (init_fnc_t) (void);
114
115/************************************************************************
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500116 * Init Utilities
wdenkbf9e3b32004-02-12 00:47:09 +0000117 ************************************************************************
118 * Some of this code should be moved into the core functions,
119 * but let's get it working (again) first...
120 */
121
122static int init_baudrate (void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000123{
TsiChung Liew6e370912008-06-24 12:12:16 -0500124 char tmp[64]; /* long enough for environment variables */
Wolfgang Denkcdb74972010-07-24 21:55:43 +0200125 int i = getenv_f("baudrate", tmp, sizeof (tmp));
wdenk4e5ca3e2003-12-08 01:34:36 +0000126
wdenkbf9e3b32004-02-12 00:47:09 +0000127 gd->baudrate = (i > 0)
128 ? (int) simple_strtoul (tmp, NULL, 10)
129 : CONFIG_BAUDRATE;
130 return (0);
wdenk4e5ca3e2003-12-08 01:34:36 +0000131}
132
wdenkbf9e3b32004-02-12 00:47:09 +0000133/***********************************************************************/
134
135static int init_func_ram (void)
136{
wdenkbf9e3b32004-02-12 00:47:09 +0000137 int board_type = 0; /* use dummy arg */
138 puts ("DRAM: ");
139
140 if ((gd->ram_size = initdram (board_type)) > 0) {
141 print_size (gd->ram_size, "\n");
142 return (0);
143 }
144 puts (failed);
145 return (1);
146}
147
148/***********************************************************************/
149
stroesee2c22d72004-12-16 17:55:22 +0000150#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
151static int init_func_i2c (void)
152{
153 puts ("I2C: ");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200154 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
stroesee2c22d72004-12-16 17:55:22 +0000155 puts ("ready\n");
156 return (0);
157}
158#endif
159
TsiChung Liewa7323bb2008-07-23 17:53:36 -0500160#if defined(CONFIG_HARD_SPI)
161static int init_func_spi (void)
162{
163 puts ("SPI: ");
164 spi_init ();
165 puts ("ready\n");
166 return (0);
167}
168#endif
169
stroesee2c22d72004-12-16 17:55:22 +0000170/***********************************************************************/
171
wdenkbf9e3b32004-02-12 00:47:09 +0000172/************************************************************************
173 * Initialization sequence *
174 ************************************************************************
175 */
176
177init_fnc_t *init_sequence[] = {
Stefan Roesed61ea142007-08-15 14:51:27 +0200178 get_clocks,
wdenkbf9e3b32004-02-12 00:47:09 +0000179 env_init,
180 init_baudrate,
181 serial_init,
182 console_init_f,
183 display_options,
184 checkcpu,
185 checkboard,
stroesee2c22d72004-12-16 17:55:22 +0000186#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
187 init_func_i2c,
188#endif
TsiChung Liewa7323bb2008-07-23 17:53:36 -0500189#if defined(CONFIG_HARD_SPI)
190 init_func_spi,
191#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000192 init_func_ram,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200193#if defined(CONFIG_SYS_DRAM_TEST)
wdenkbf9e3b32004-02-12 00:47:09 +0000194 testdram,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200195#endif /* CONFIG_SYS_DRAM_TEST */
wdenkbf9e3b32004-02-12 00:47:09 +0000196 INIT_FUNC_WATCHDOG_INIT
197 NULL, /* Terminate this list */
198};
199
200
wdenk4e5ca3e2003-12-08 01:34:36 +0000201/************************************************************************
202 *
203 * This is the first part of the initialization sequence that is
204 * implemented in C, but still running from ROM.
205 *
206 * The main purpose is to provide a (serial) console interface as
207 * soon as possible (so we can see any error messages), and to
208 * initialize the RAM so that we can relocate the monitor code to
209 * RAM.
210 *
211 * Be aware of the restrictions: global data is read-only, BSS is not
212 * initialized, and stack space is limited to a few kB.
213 *
214 ************************************************************************
215 */
216
wdenkbf9e3b32004-02-12 00:47:09 +0000217void
218board_init_f (ulong bootflag)
wdenk4e5ca3e2003-12-08 01:34:36 +0000219{
wdenk4e5ca3e2003-12-08 01:34:36 +0000220 bd_t *bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000221 ulong len, addr, addr_sp;
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200222 ulong *paddr;
wdenkbf9e3b32004-02-12 00:47:09 +0000223 gd_t *id;
224 init_fnc_t **init_fnc_ptr;
225#ifdef CONFIG_PRAM
226 int i;
227 ulong reg;
TsiChung Liew6e370912008-06-24 12:12:16 -0500228 char tmp[64]; /* long enough for environment variables */
wdenkbf9e3b32004-02-12 00:47:09 +0000229#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000230
wdenkbf9e3b32004-02-12 00:47:09 +0000231 /* Pointer is writable since we allocated a register for it */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200232 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
wdenk93f6a672004-07-01 20:28:03 +0000233 /* compiler optimization barrier needed for GCC >= 3.4 */
234 __asm__ __volatile__("": : :"memory");
wdenk4e5ca3e2003-12-08 01:34:36 +0000235
wdenkbf9e3b32004-02-12 00:47:09 +0000236 /* Clear initial global data */
237 memset ((void *) gd, 0, sizeof (gd_t));
wdenk4e5ca3e2003-12-08 01:34:36 +0000238
wdenkbf9e3b32004-02-12 00:47:09 +0000239 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
240 if ((*init_fnc_ptr)() != 0) {
241 hang ();
242 }
wdenk4e5ca3e2003-12-08 01:34:36 +0000243 }
wdenk4e5ca3e2003-12-08 01:34:36 +0000244
245 /*
246 * Now that we have DRAM mapped and working, we can
247 * relocate the code and continue running from DRAM.
248 *
249 * Reserve memory at end of RAM for (top down in that order):
wdenkbf9e3b32004-02-12 00:47:09 +0000250 * - protected RAM
251 * - LCD framebuffer
252 * - monitor code
253 * - board info struct
wdenk4e5ca3e2003-12-08 01:34:36 +0000254 */
Po-Yu Chuang44c6e652011-03-01 22:59:59 +0000255 len = (ulong)&__bss_end__ - CONFIG_SYS_MONITOR_BASE;
wdenk4e5ca3e2003-12-08 01:34:36 +0000256
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200257 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
wdenk4e5ca3e2003-12-08 01:34:36 +0000258
wdenkbf9e3b32004-02-12 00:47:09 +0000259#ifdef CONFIG_LOGBUFFER
260 /* reserve kernel log buffer */
261 addr -= (LOGBUFF_RESERVE);
262 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
263#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000264
wdenkbf9e3b32004-02-12 00:47:09 +0000265#ifdef CONFIG_PRAM
266 /*
267 * reserve protected RAM
268 */
Wolfgang Denkcdb74972010-07-24 21:55:43 +0200269 i = getenv_f("pram", tmp, sizeof (tmp));
wdenkbf9e3b32004-02-12 00:47:09 +0000270 reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
271 addr -= (reg << 10); /* size is in kB */
272 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
273#endif /* CONFIG_PRAM */
274
TsiChungLiew1552af72008-01-14 17:43:33 -0600275 /* round down to next 4 kB limit */
276 addr &= ~(4096 - 1);
277 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
278
279#ifdef CONFIG_LCD
Minkyu Kangd32a1a42011-04-24 22:22:34 +0000280#ifdef CONFIG_FB_ADDR
281 gd->fb_base = CONFIG_FB_ADDR;
282#else
TsiChungLiew1552af72008-01-14 17:43:33 -0600283 /* reserve memory for LCD display (always full pages) */
284 addr = lcd_setmem (addr);
285 gd->fb_base = addr;
Minkyu Kangd32a1a42011-04-24 22:22:34 +0000286#endif /* CONFIG_FB_ADDR */
TsiChungLiew1552af72008-01-14 17:43:33 -0600287#endif /* CONFIG_LCD */
288
wdenkbf9e3b32004-02-12 00:47:09 +0000289 /*
290 * reserve memory for U-Boot code, data & bss
291 * round down to next 4 kB limit
292 */
wdenk4e5ca3e2003-12-08 01:34:36 +0000293 addr -= len;
wdenkbf9e3b32004-02-12 00:47:09 +0000294 addr &= ~(4096 - 1);
295
296 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
297
298 /*
299 * reserve memory for malloc() arena
300 */
301 addr_sp = addr - TOTAL_MALLOC_LEN;
302 debug ("Reserving %dk for malloc() at: %08lx\n",
303 TOTAL_MALLOC_LEN >> 10, addr_sp);
304
305 /*
306 * (permanently) allocate a Board Info struct
307 * and a permanent copy of the "global" data
308 */
309 addr_sp -= sizeof (bd_t);
310 bd = (bd_t *) addr_sp;
311 gd->bd = bd;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200312 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
wdenkbf9e3b32004-02-12 00:47:09 +0000313 sizeof (bd_t), addr_sp);
314 addr_sp -= sizeof (gd_t);
315 id = (gd_t *) addr_sp;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200316 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
wdenkbf9e3b32004-02-12 00:47:09 +0000317 sizeof (gd_t), addr_sp);
318
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200319 /* Reserve memory for boot params. */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200320 addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
wdenkbf9e3b32004-02-12 00:47:09 +0000321 bd->bi_boot_params = addr_sp;
322 debug ("Reserving %dk for boot parameters at: %08lx\n",
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200323 CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
wdenkbf9e3b32004-02-12 00:47:09 +0000324
325 /*
326 * Finally, we set up a new (bigger) stack.
327 *
328 * Leave some safety gap for SP, force alignment on 16 byte boundary
329 * Clear initial stack frame
330 */
331 addr_sp -= 16;
332 addr_sp &= ~0xF;
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200333
334 paddr = (ulong *)addr_sp;
335 *paddr-- = 0;
336 *paddr-- = 0;
337 addr_sp = (ulong)paddr;
Wolfgang Denk977b50f2006-05-10 17:43:20 +0200338
wdenkbf9e3b32004-02-12 00:47:09 +0000339 debug ("Stack Pointer at: %08lx\n", addr_sp);
wdenk4e5ca3e2003-12-08 01:34:36 +0000340
341 /*
342 * Save local variables to board info struct
343 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200344 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
wdenkbf9e3b32004-02-12 00:47:09 +0000345 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200346#ifdef CONFIG_SYS_INIT_RAM_ADDR
347 bd->bi_sramstart = CONFIG_SYS_INIT_RAM_ADDR; /* start of SRAM memory */
Wolfgang Denk553f0982010-10-26 13:32:32 +0200348 bd->bi_sramsize = CONFIG_SYS_INIT_RAM_SIZE; /* size of SRAM memory */
TsiChung Liew8e585f02007-06-18 13:50:13 -0500349#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200350 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
wdenk4e5ca3e2003-12-08 01:34:36 +0000351
wdenkbf9e3b32004-02-12 00:47:09 +0000352 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
wdenk4e5ca3e2003-12-08 01:34:36 +0000353
wdenkbf9e3b32004-02-12 00:47:09 +0000354 WATCHDOG_RESET ();
355 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
356 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500357#ifdef CONFIG_PCI
358 bd->bi_pcifreq = gd->pci_clk; /* PCI Freq in Hz */
359#endif
360#ifdef CONFIG_EXTRA_CLOCK
361 bd->bi_inpfreq = gd->inp_clk; /* input Freq in Hz */
362 bd->bi_vcofreq = gd->vco_clk; /* vco Freq in Hz */
363 bd->bi_flbfreq = gd->flb_clk; /* flexbus Freq in Hz */
364#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000365 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
wdenk4e5ca3e2003-12-08 01:34:36 +0000366
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200367#ifdef CONFIG_SYS_EXTBDINFO
wdenk4e5ca3e2003-12-08 01:34:36 +0000368 strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
wdenkbf9e3b32004-02-12 00:47:09 +0000369 strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
wdenk4e5ca3e2003-12-08 01:34:36 +0000370#endif
371
wdenkbf9e3b32004-02-12 00:47:09 +0000372 WATCHDOG_RESET ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000373
wdenkbf9e3b32004-02-12 00:47:09 +0000374#ifdef CONFIG_POST
375 post_bootmode_init();
376 post_run (NULL, POST_ROM | post_bootmode_get(0));
377#endif
378
379 WATCHDOG_RESET();
380
381 memcpy (id, (void *)gd, sizeof (gd_t));
382
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200383 debug ("Start relocate of code from %08x to %08lx\n", CONFIG_SYS_MONITOR_BASE, addr);
wdenkbf9e3b32004-02-12 00:47:09 +0000384 relocate_code (addr_sp, id, addr);
385
386 /* NOTREACHED - jump_to_ram() does not return */
wdenk4e5ca3e2003-12-08 01:34:36 +0000387}
388
wdenk4e5ca3e2003-12-08 01:34:36 +0000389/************************************************************************
390 *
391 * This is the next part if the initialization sequence: we are now
392 * running from RAM and have a "normal" C environment, i. e. global
393 * data can be written, BSS has been cleared, the stack size in not
394 * that critical any more, etc.
395 *
396 ************************************************************************
397 */
wdenkbf9e3b32004-02-12 00:47:09 +0000398void board_init_r (gd_t *id, ulong dest_addr)
wdenk4e5ca3e2003-12-08 01:34:36 +0000399{
Richard Retanubundc269652009-03-23 13:35:48 -0400400 char *s;
wdenk4e5ca3e2003-12-08 01:34:36 +0000401 bd_t *bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000402 extern void malloc_bin_reloc (void);
wdenk4e5ca3e2003-12-08 01:34:36 +0000403
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200404#ifndef CONFIG_ENV_IS_NOWHERE
wdenkbf9e3b32004-02-12 00:47:09 +0000405 extern char * env_name_spec;
406#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200407#ifndef CONFIG_SYS_NO_FLASH
wdenkbf9e3b32004-02-12 00:47:09 +0000408 ulong flash_size;
409#endif
410 gd = id; /* initialize RAM version of global data */
wdenk4e5ca3e2003-12-08 01:34:36 +0000411 bd = gd->bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000412
413 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
414
TsiChung Liew8e585f02007-06-18 13:50:13 -0500415#ifdef CONFIG_SERIAL_MULTI
416 serial_initialize();
417#endif
418
wdenkbf9e3b32004-02-12 00:47:09 +0000419 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
420
421 WATCHDOG_RESET ();
422
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200423 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
wdenkbf9e3b32004-02-12 00:47:09 +0000424
425 monitor_flash_len = (ulong)&__init_end - dest_addr;
426
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200427#if defined(CONFIG_NEEDS_MANUAL_RELOC)
wdenkbf9e3b32004-02-12 00:47:09 +0000428 /*
429 * We have to relocate the command table manually
430 */
Heiko Schocher620f1f62010-09-17 13:10:33 +0200431 fixup_cmdtable(&__u_boot_cmd_start,
432 (ulong)(&__u_boot_cmd_end - &__u_boot_cmd_start));
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200433#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
wdenkbf9e3b32004-02-12 00:47:09 +0000434
wdenkbf9e3b32004-02-12 00:47:09 +0000435 /* there are some other pointer constants we must deal with */
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200436#ifndef CONFIG_ENV_IS_NOWHERE
wdenkbf9e3b32004-02-12 00:47:09 +0000437 env_name_spec += gd->reloc_off;
438#endif
439
440 WATCHDOG_RESET ();
441
442#ifdef CONFIG_LOGBUFFER
443 logbuff_init_ptrs ();
444#endif
445#ifdef CONFIG_POST
446 post_output_backlog ();
447 post_reloc ();
448#endif
449 WATCHDOG_RESET();
450
451#if 0
452 /* instruction cache enabled in cpu_init_f() for faster relocation */
453 icache_enable (); /* it's time to enable the instruction cache */
454#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000455
456 /*
457 * Setup trap handlers
458 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200459 trap_init (CONFIG_SYS_SDRAM_BASE);
wdenk4e5ca3e2003-12-08 01:34:36 +0000460
Peter Tyserd4e8ada2009-08-21 23:05:21 -0500461 /* The Malloc area is immediately below the monitor copy in DRAM */
Peter Tysera483a162009-08-21 23:05:20 -0500462 mem_malloc_init (CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
463 TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN);
Stefan Roesec790b042009-05-11 15:50:12 +0200464 malloc_bin_reloc ();
465
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200466#if !defined(CONFIG_SYS_NO_FLASH)
Peter Tysereddf52b2010-12-28 18:12:05 -0600467 puts ("Flash: ");
wdenk4e5ca3e2003-12-08 01:34:36 +0000468
469 if ((flash_size = flash_init ()) > 0) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200470# ifdef CONFIG_SYS_FLASH_CHECKSUM
wdenkbf9e3b32004-02-12 00:47:09 +0000471 print_size (flash_size, "");
wdenk4e5ca3e2003-12-08 01:34:36 +0000472 /*
473 * Compute and print flash CRC if flashchecksum is set to 'y'
474 *
wdenkbf9e3b32004-02-12 00:47:09 +0000475 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
wdenk4e5ca3e2003-12-08 01:34:36 +0000476 */
477 s = getenv ("flashchecksum");
478 if (s && (*s == 'y')) {
TsiChung Liew11d88b22009-06-12 13:03:34 +0000479 printf (" CRC: %08X",
wdenkbf9e3b32004-02-12 00:47:09 +0000480 crc32 (0,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200481 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
wdenkbf9e3b32004-02-12 00:47:09 +0000482 flash_size)
483 );
wdenk4e5ca3e2003-12-08 01:34:36 +0000484 }
485 putc ('\n');
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200486# else /* !CONFIG_SYS_FLASH_CHECKSUM */
wdenkbf9e3b32004-02-12 00:47:09 +0000487 print_size (flash_size, "\n");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200488# endif /* CONFIG_SYS_FLASH_CHECKSUM */
wdenk4e5ca3e2003-12-08 01:34:36 +0000489 } else {
490 puts (failed);
491 hang ();
492 }
493
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200494 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
wdenkbf9e3b32004-02-12 00:47:09 +0000495 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
496 bd->bi_flashoffset = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200497#else /* CONFIG_SYS_NO_FLASH */
wdenkbf9e3b32004-02-12 00:47:09 +0000498 bd->bi_flashsize = 0;
499 bd->bi_flashstart = 0;
500 bd->bi_flashoffset = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200501#endif /* !CONFIG_SYS_NO_FLASH */
wdenk4e5ca3e2003-12-08 01:34:36 +0000502
503 WATCHDOG_RESET ();
504
505 /* initialize higher level parts of CPU like time base and timers */
506 cpu_init_r ();
507
508 WATCHDOG_RESET ();
509
wdenk4e5ca3e2003-12-08 01:34:36 +0000510#ifdef CONFIG_SPI
Jean-Christophe PLAGNIOL-VILLARDbb1f8b42008-09-05 09:19:30 +0200511# if !defined(CONFIG_ENV_IS_IN_EEPROM)
wdenk4e5ca3e2003-12-08 01:34:36 +0000512 spi_init_f ();
513# endif
514 spi_init_r ();
515#endif
516
517 /* relocate environment function pointers etc. */
518 env_relocate ();
519
wdenkbf9e3b32004-02-12 00:47:09 +0000520 /*
521 * Fill in missing fields of bd_info.
522 * We do this here, where we have "normal" access to the
523 * environment; we used to do this still running from ROM,
Wolfgang Denkcdb74972010-07-24 21:55:43 +0200524 * where had to use getenv_f(), which can be pretty slow when
wdenkbf9e3b32004-02-12 00:47:09 +0000525 * the environment is in EEPROM.
526 */
wdenk4e5ca3e2003-12-08 01:34:36 +0000527 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
528
529 WATCHDOG_RESET ();
530
TsiChung Liew8e585f02007-06-18 13:50:13 -0500531#if defined(CONFIG_PCI)
532 /*
533 * Do pci configuration
534 */
535 pci_init ();
536#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000537
538 /** leave this here (after malloc(), environment and PCI are working) **/
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200539 /* Initialize stdio devices */
540 stdio_init ();
wdenkbf9e3b32004-02-12 00:47:09 +0000541
542 /* Initialize the jump table for applications */
543 jumptable_init ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000544
545 /* Initialize the console (after the relocation and devices init) */
wdenkbf9e3b32004-02-12 00:47:09 +0000546 console_init_r ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000547
stroesee2c22d72004-12-16 17:55:22 +0000548#if defined(CONFIG_MISC_INIT_R)
549 /* miscellaneous platform dependent initialisations */
550 misc_init_r ();
551#endif
552
Jon Loeliger7def6b32007-07-09 18:02:11 -0500553#if defined(CONFIG_CMD_KGDB)
wdenk4e5ca3e2003-12-08 01:34:36 +0000554 WATCHDOG_RESET ();
555 puts ("KGDB: ");
556 kgdb_init ();
557#endif
558
wdenkbf9e3b32004-02-12 00:47:09 +0000559 debug ("U-Boot relocated to %08lx\n", dest_addr);
560
wdenk4e5ca3e2003-12-08 01:34:36 +0000561 /*
562 * Enable Interrupts
563 */
564 interrupt_init ();
wdenkbf9e3b32004-02-12 00:47:09 +0000565
566 /* Must happen after interrupts are initialized since
567 * an irq handler gets installed
568 */
569 timer_init();
570
wdenkbf9e3b32004-02-12 00:47:09 +0000571#ifdef CONFIG_STATUS_LED
572 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
573#endif
574
wdenk4e5ca3e2003-12-08 01:34:36 +0000575 udelay (20);
wdenkbf9e3b32004-02-12 00:47:09 +0000576
wdenk4e5ca3e2003-12-08 01:34:36 +0000577 set_timer (0);
578
579 /* Insert function pointers now that we have relocated the code */
580
581 /* Initialize from environment */
582 if ((s = getenv ("loadaddr")) != NULL) {
583 load_addr = simple_strtoul (s, NULL, 16);
584 }
Jon Loeliger7def6b32007-07-09 18:02:11 -0500585#if defined(CONFIG_CMD_NET)
wdenk4e5ca3e2003-12-08 01:34:36 +0000586 if ((s = getenv ("bootfile")) != NULL) {
587 copy_filename (BootFile, s, sizeof (BootFile));
588 }
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500589#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000590
591 WATCHDOG_RESET ();
592
Jon Loeliger7def6b32007-07-09 18:02:11 -0500593#if defined(CONFIG_CMD_DOC)
wdenk4e5ca3e2003-12-08 01:34:36 +0000594 WATCHDOG_RESET ();
wdenkbf9e3b32004-02-12 00:47:09 +0000595 puts ("DOC: ");
596 doc_init ();
597#endif
598
Jon Loeliger7def6b32007-07-09 18:02:11 -0500599#if defined(CONFIG_CMD_NAND)
wdenkbf9e3b32004-02-12 00:47:09 +0000600 WATCHDOG_RESET ();
Markus Klotzbuecherd860c342006-04-25 17:00:33 +0200601 puts ("NAND: ");
wdenkbf9e3b32004-02-12 00:47:09 +0000602 nand_init(); /* go init the NAND */
603#endif
604
Luigi 'Comio' Mantellini310cecb2009-10-10 12:42:21 +0200605#ifdef CONFIG_BITBANGMII
606 bb_miiphy_init();
607#endif
Stefan Roesed61ea142007-08-15 14:51:27 +0200608#if defined(CONFIG_CMD_NET)
wdenkbf9e3b32004-02-12 00:47:09 +0000609 WATCHDOG_RESET();
TsiChung Liew8e585f02007-06-18 13:50:13 -0500610#if defined(FEC_ENET)
wdenkbf9e3b32004-02-12 00:47:09 +0000611 eth_init(bd);
612#endif
TsiChung Liew8e585f02007-06-18 13:50:13 -0500613#if defined(CONFIG_NET_MULTI)
614 puts ("Net: ");
TsiChungLiewab77bc52007-08-15 15:39:17 -0500615 eth_initialize (bd);
TsiChung Liew8e585f02007-06-18 13:50:13 -0500616#endif
617#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000618
619#ifdef CONFIG_POST
620 post_run (NULL, POST_RAM | post_bootmode_get(0));
wdenk4e5ca3e2003-12-08 01:34:36 +0000621#endif
622
Stefan Roesed61ea142007-08-15 14:51:27 +0200623#if defined(CONFIG_CMD_PCMCIA) \
624 && !defined(CONFIG_CMD_IDE)
TsiChung Liew8e585f02007-06-18 13:50:13 -0500625 WATCHDOG_RESET ();
626 puts ("PCMCIA:");
627 pcmcia_init ();
628#endif
629
Stefan Roesed61ea142007-08-15 14:51:27 +0200630#if defined(CONFIG_CMD_IDE)
TsiChung Liew8e585f02007-06-18 13:50:13 -0500631 WATCHDOG_RESET ();
632 puts ("IDE: ");
633 ide_init ();
Stefan Roesed61ea142007-08-15 14:51:27 +0200634#endif
TsiChung Liew8e585f02007-06-18 13:50:13 -0500635
wdenk4e5ca3e2003-12-08 01:34:36 +0000636#ifdef CONFIG_LAST_STAGE_INIT
637 WATCHDOG_RESET ();
638 /*
639 * Some parts can be only initialized if all others (like
640 * Interrupts) are up and running (i.e. the PC-style ISA
641 * keyboard).
642 */
643 last_stage_init ();
644#endif
645
Jon Loeliger7def6b32007-07-09 18:02:11 -0500646#if defined(CONFIG_CMD_BEDBUG)
wdenk4e5ca3e2003-12-08 01:34:36 +0000647 WATCHDOG_RESET ();
648 bedbug_init ();
649#endif
650
wdenkbf9e3b32004-02-12 00:47:09 +0000651#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
wdenk4e5ca3e2003-12-08 01:34:36 +0000652 /*
653 * Export available size of memory for Linux,
654 * taking into account the protected RAM at top of memory
655 */
656 {
657 ulong pram;
TsiChung Liew6e370912008-06-24 12:12:16 -0500658 char memsz[32];
wdenkbf9e3b32004-02-12 00:47:09 +0000659#ifdef CONFIG_PRAM
660 char *s;
wdenk4e5ca3e2003-12-08 01:34:36 +0000661
662 if ((s = getenv ("pram")) != NULL) {
663 pram = simple_strtoul (s, NULL, 10);
664 } else {
665 pram = CONFIG_PRAM;
666 }
wdenkbf9e3b32004-02-12 00:47:09 +0000667#else
668 pram=0;
669#endif
670#ifdef CONFIG_LOGBUFFER
671 /* Also take the logbuffer into account (pram is in kB) */
672 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
673#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000674 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
675 setenv ("mem", memsz);
676 }
677#endif
678
wdenkbf9e3b32004-02-12 00:47:09 +0000679#ifdef CONFIG_MODEM_SUPPORT
680 {
681 extern int do_mdm_init;
682 do_mdm_init = gd->do_mdm_init;
683 }
684#endif
685
686#ifdef CONFIG_WATCHDOG
687 /* disable watchdog if environment is set */
688 if ((s = getenv ("watchdog")) != NULL) {
689 if (strncmp (s, "off", 3) == 0) {
690 WATCHDOG_DISABLE ();
691 }
692 }
693#endif /* CONFIG_WATCHDOG*/
694
695
wdenk4e5ca3e2003-12-08 01:34:36 +0000696 /* Initialization complete - start the monitor */
697
698 /* main_loop() can return to retry autoboot, if so just run it again. */
699 for (;;) {
700 WATCHDOG_RESET ();
701 main_loop ();
702 }
703
704 /* NOTREACHED - no way out of command loop except booting */
705}
706
wdenkbf9e3b32004-02-12 00:47:09 +0000707
708void hang(void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000709{
710 puts ("### ERROR ### Please RESET the board ###\n");
711 for (;;);
712}