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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
wdenkbf9e3b32004-02-12 00:47:09 +000081#if defined(CONFIG_WATCHDOG)
82# define INIT_FUNC_WATCHDOG_INIT watchdog_init,
83# define WATCHDOG_DISABLE watchdog_disable
84
85extern int watchdog_init(void);
86extern int watchdog_disable(void);
87#else
88# define INIT_FUNC_WATCHDOG_INIT /* undef */
89# define WATCHDOG_DISABLE /* undef */
90#endif /* CONFIG_WATCHDOG */
91
92ulong monitor_flash_len;
93
wdenk4e5ca3e2003-12-08 01:34:36 +000094/************************************************************************
95 * Utilities *
96 ************************************************************************
97 */
98
99/*
wdenkbf9e3b32004-02-12 00:47:09 +0000100 * All attempts to come up with a "common" initialization sequence
101 * that works for all boards and architectures failed: some of the
102 * requirements are just _too_ different. To get rid of the resulting
103 * mess of board dependend #ifdef'ed code we now make the whole
104 * initialization sequence configurable to the user.
105 *
106 * The requirements for any new initalization function is simple: it
107 * receives a pointer to the "global data" structure as it's only
108 * argument, and returns an integer return code, where 0 means
109 * "continue" and != 0 means "fatal error, hang the system".
110 */
111typedef int (init_fnc_t) (void);
112
113/************************************************************************
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500114 * Init Utilities
wdenkbf9e3b32004-02-12 00:47:09 +0000115 ************************************************************************
116 * Some of this code should be moved into the core functions,
117 * but let's get it working (again) first...
118 */
119
120static int init_baudrate (void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000121{
Simon Glass77b8f202011-10-13 14:43:09 +0000122 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
123 return 0;
wdenk4e5ca3e2003-12-08 01:34:36 +0000124}
125
wdenkbf9e3b32004-02-12 00:47:09 +0000126/***********************************************************************/
127
128static int init_func_ram (void)
129{
wdenkbf9e3b32004-02-12 00:47:09 +0000130 int board_type = 0; /* use dummy arg */
131 puts ("DRAM: ");
132
133 if ((gd->ram_size = initdram (board_type)) > 0) {
134 print_size (gd->ram_size, "\n");
135 return (0);
136 }
137 puts (failed);
138 return (1);
139}
140
141/***********************************************************************/
142
stroesee2c22d72004-12-16 17:55:22 +0000143#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
144static int init_func_i2c (void)
145{
146 puts ("I2C: ");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200147 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
stroesee2c22d72004-12-16 17:55:22 +0000148 puts ("ready\n");
149 return (0);
150}
151#endif
152
TsiChung Liewa7323bb2008-07-23 17:53:36 -0500153#if defined(CONFIG_HARD_SPI)
154static int init_func_spi (void)
155{
156 puts ("SPI: ");
157 spi_init ();
158 puts ("ready\n");
159 return (0);
160}
161#endif
162
stroesee2c22d72004-12-16 17:55:22 +0000163/***********************************************************************/
164
wdenkbf9e3b32004-02-12 00:47:09 +0000165/************************************************************************
166 * Initialization sequence *
167 ************************************************************************
168 */
169
170init_fnc_t *init_sequence[] = {
Stefan Roesed61ea142007-08-15 14:51:27 +0200171 get_clocks,
wdenkbf9e3b32004-02-12 00:47:09 +0000172 env_init,
173 init_baudrate,
174 serial_init,
175 console_init_f,
176 display_options,
177 checkcpu,
178 checkboard,
stroesee2c22d72004-12-16 17:55:22 +0000179#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
180 init_func_i2c,
181#endif
TsiChung Liewa7323bb2008-07-23 17:53:36 -0500182#if defined(CONFIG_HARD_SPI)
183 init_func_spi,
184#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000185 init_func_ram,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200186#if defined(CONFIG_SYS_DRAM_TEST)
wdenkbf9e3b32004-02-12 00:47:09 +0000187 testdram,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200188#endif /* CONFIG_SYS_DRAM_TEST */
wdenkbf9e3b32004-02-12 00:47:09 +0000189 INIT_FUNC_WATCHDOG_INIT
190 NULL, /* Terminate this list */
191};
192
193
wdenk4e5ca3e2003-12-08 01:34:36 +0000194/************************************************************************
195 *
196 * This is the first part of the initialization sequence that is
197 * implemented in C, but still running from ROM.
198 *
199 * The main purpose is to provide a (serial) console interface as
200 * soon as possible (so we can see any error messages), and to
201 * initialize the RAM so that we can relocate the monitor code to
202 * RAM.
203 *
204 * Be aware of the restrictions: global data is read-only, BSS is not
205 * initialized, and stack space is limited to a few kB.
206 *
207 ************************************************************************
208 */
209
wdenkbf9e3b32004-02-12 00:47:09 +0000210void
211board_init_f (ulong bootflag)
wdenk4e5ca3e2003-12-08 01:34:36 +0000212{
wdenk4e5ca3e2003-12-08 01:34:36 +0000213 bd_t *bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000214 ulong len, addr, addr_sp;
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200215 ulong *paddr;
wdenkbf9e3b32004-02-12 00:47:09 +0000216 gd_t *id;
217 init_fnc_t **init_fnc_ptr;
218#ifdef CONFIG_PRAM
wdenkbf9e3b32004-02-12 00:47:09 +0000219 ulong reg;
wdenkbf9e3b32004-02-12 00:47:09 +0000220#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000221
wdenkbf9e3b32004-02-12 00:47:09 +0000222 /* Pointer is writable since we allocated a register for it */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200223 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
wdenk93f6a672004-07-01 20:28:03 +0000224 /* compiler optimization barrier needed for GCC >= 3.4 */
225 __asm__ __volatile__("": : :"memory");
wdenk4e5ca3e2003-12-08 01:34:36 +0000226
wdenkbf9e3b32004-02-12 00:47:09 +0000227 /* Clear initial global data */
228 memset ((void *) gd, 0, sizeof (gd_t));
wdenk4e5ca3e2003-12-08 01:34:36 +0000229
wdenkbf9e3b32004-02-12 00:47:09 +0000230 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
231 if ((*init_fnc_ptr)() != 0) {
232 hang ();
233 }
wdenk4e5ca3e2003-12-08 01:34:36 +0000234 }
wdenk4e5ca3e2003-12-08 01:34:36 +0000235
236 /*
237 * Now that we have DRAM mapped and working, we can
238 * relocate the code and continue running from DRAM.
239 *
240 * Reserve memory at end of RAM for (top down in that order):
wdenkbf9e3b32004-02-12 00:47:09 +0000241 * - protected RAM
242 * - LCD framebuffer
243 * - monitor code
244 * - board info struct
wdenk4e5ca3e2003-12-08 01:34:36 +0000245 */
Po-Yu Chuang44c6e652011-03-01 22:59:59 +0000246 len = (ulong)&__bss_end__ - CONFIG_SYS_MONITOR_BASE;
wdenk4e5ca3e2003-12-08 01:34:36 +0000247
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200248 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
wdenk4e5ca3e2003-12-08 01:34:36 +0000249
wdenkbf9e3b32004-02-12 00:47:09 +0000250#ifdef CONFIG_LOGBUFFER
251 /* reserve kernel log buffer */
252 addr -= (LOGBUFF_RESERVE);
253 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
254#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000255
wdenkbf9e3b32004-02-12 00:47:09 +0000256#ifdef CONFIG_PRAM
257 /*
258 * reserve protected RAM
259 */
Simon Glass77b8f202011-10-13 14:43:09 +0000260 reg = getenv_ulong("pram", 10, CONFIG_PRAM);
wdenkbf9e3b32004-02-12 00:47:09 +0000261 addr -= (reg << 10); /* size is in kB */
262 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
263#endif /* CONFIG_PRAM */
264
TsiChungLiew1552af72008-01-14 17:43:33 -0600265 /* round down to next 4 kB limit */
266 addr &= ~(4096 - 1);
267 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
268
269#ifdef CONFIG_LCD
Minkyu Kangd32a1a42011-04-24 22:22:34 +0000270#ifdef CONFIG_FB_ADDR
271 gd->fb_base = CONFIG_FB_ADDR;
272#else
TsiChungLiew1552af72008-01-14 17:43:33 -0600273 /* reserve memory for LCD display (always full pages) */
274 addr = lcd_setmem (addr);
275 gd->fb_base = addr;
Minkyu Kangd32a1a42011-04-24 22:22:34 +0000276#endif /* CONFIG_FB_ADDR */
TsiChungLiew1552af72008-01-14 17:43:33 -0600277#endif /* CONFIG_LCD */
278
wdenkbf9e3b32004-02-12 00:47:09 +0000279 /*
280 * reserve memory for U-Boot code, data & bss
281 * round down to next 4 kB limit
282 */
wdenk4e5ca3e2003-12-08 01:34:36 +0000283 addr -= len;
wdenkbf9e3b32004-02-12 00:47:09 +0000284 addr &= ~(4096 - 1);
285
286 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
287
288 /*
289 * reserve memory for malloc() arena
290 */
291 addr_sp = addr - TOTAL_MALLOC_LEN;
292 debug ("Reserving %dk for malloc() at: %08lx\n",
293 TOTAL_MALLOC_LEN >> 10, addr_sp);
294
295 /*
296 * (permanently) allocate a Board Info struct
297 * and a permanent copy of the "global" data
298 */
299 addr_sp -= sizeof (bd_t);
300 bd = (bd_t *) addr_sp;
301 gd->bd = bd;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200302 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
wdenkbf9e3b32004-02-12 00:47:09 +0000303 sizeof (bd_t), addr_sp);
304 addr_sp -= sizeof (gd_t);
305 id = (gd_t *) addr_sp;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200306 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
wdenkbf9e3b32004-02-12 00:47:09 +0000307 sizeof (gd_t), addr_sp);
308
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200309 /* Reserve memory for boot params. */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200310 addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
wdenkbf9e3b32004-02-12 00:47:09 +0000311 bd->bi_boot_params = addr_sp;
312 debug ("Reserving %dk for boot parameters at: %08lx\n",
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200313 CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
wdenkbf9e3b32004-02-12 00:47:09 +0000314
315 /*
316 * Finally, we set up a new (bigger) stack.
317 *
318 * Leave some safety gap for SP, force alignment on 16 byte boundary
319 * Clear initial stack frame
320 */
321 addr_sp -= 16;
322 addr_sp &= ~0xF;
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200323
324 paddr = (ulong *)addr_sp;
325 *paddr-- = 0;
326 *paddr-- = 0;
327 addr_sp = (ulong)paddr;
Wolfgang Denk977b50f2006-05-10 17:43:20 +0200328
wdenkbf9e3b32004-02-12 00:47:09 +0000329 debug ("Stack Pointer at: %08lx\n", addr_sp);
wdenk4e5ca3e2003-12-08 01:34:36 +0000330
331 /*
332 * Save local variables to board info struct
333 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200334 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
wdenkbf9e3b32004-02-12 00:47:09 +0000335 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200336#ifdef CONFIG_SYS_INIT_RAM_ADDR
337 bd->bi_sramstart = CONFIG_SYS_INIT_RAM_ADDR; /* start of SRAM memory */
Wolfgang Denk553f0982010-10-26 13:32:32 +0200338 bd->bi_sramsize = CONFIG_SYS_INIT_RAM_SIZE; /* size of SRAM memory */
TsiChung Liew8e585f02007-06-18 13:50:13 -0500339#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200340 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
wdenk4e5ca3e2003-12-08 01:34:36 +0000341
wdenkbf9e3b32004-02-12 00:47:09 +0000342 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
wdenk4e5ca3e2003-12-08 01:34:36 +0000343
wdenkbf9e3b32004-02-12 00:47:09 +0000344 WATCHDOG_RESET ();
345 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
346 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500347#ifdef CONFIG_PCI
348 bd->bi_pcifreq = gd->pci_clk; /* PCI Freq in Hz */
349#endif
350#ifdef CONFIG_EXTRA_CLOCK
351 bd->bi_inpfreq = gd->inp_clk; /* input Freq in Hz */
352 bd->bi_vcofreq = gd->vco_clk; /* vco Freq in Hz */
353 bd->bi_flbfreq = gd->flb_clk; /* flexbus Freq in Hz */
354#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000355 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
wdenk4e5ca3e2003-12-08 01:34:36 +0000356
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200357#ifdef CONFIG_SYS_EXTBDINFO
wdenk4e5ca3e2003-12-08 01:34:36 +0000358 strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
wdenkbf9e3b32004-02-12 00:47:09 +0000359 strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
wdenk4e5ca3e2003-12-08 01:34:36 +0000360#endif
361
wdenkbf9e3b32004-02-12 00:47:09 +0000362 WATCHDOG_RESET ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000363
wdenkbf9e3b32004-02-12 00:47:09 +0000364#ifdef CONFIG_POST
365 post_bootmode_init();
366 post_run (NULL, POST_ROM | post_bootmode_get(0));
367#endif
368
369 WATCHDOG_RESET();
370
371 memcpy (id, (void *)gd, sizeof (gd_t));
372
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200373 debug ("Start relocate of code from %08x to %08lx\n", CONFIG_SYS_MONITOR_BASE, addr);
wdenkbf9e3b32004-02-12 00:47:09 +0000374 relocate_code (addr_sp, id, addr);
375
376 /* NOTREACHED - jump_to_ram() does not return */
wdenk4e5ca3e2003-12-08 01:34:36 +0000377}
378
wdenk4e5ca3e2003-12-08 01:34:36 +0000379/************************************************************************
380 *
381 * This is the next part if the initialization sequence: we are now
382 * running from RAM and have a "normal" C environment, i. e. global
383 * data can be written, BSS has been cleared, the stack size in not
384 * that critical any more, etc.
385 *
386 ************************************************************************
387 */
wdenkbf9e3b32004-02-12 00:47:09 +0000388void board_init_r (gd_t *id, ulong dest_addr)
wdenk4e5ca3e2003-12-08 01:34:36 +0000389{
Richard Retanubundc269652009-03-23 13:35:48 -0400390 char *s;
wdenk4e5ca3e2003-12-08 01:34:36 +0000391 bd_t *bd;
392
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200393#ifndef CONFIG_ENV_IS_NOWHERE
wdenkbf9e3b32004-02-12 00:47:09 +0000394 extern char * env_name_spec;
395#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200396#ifndef CONFIG_SYS_NO_FLASH
wdenkbf9e3b32004-02-12 00:47:09 +0000397 ulong flash_size;
398#endif
399 gd = id; /* initialize RAM version of global data */
wdenk4e5ca3e2003-12-08 01:34:36 +0000400 bd = gd->bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000401
402 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
403
TsiChung Liew8e585f02007-06-18 13:50:13 -0500404 serial_initialize();
TsiChung Liew8e585f02007-06-18 13:50:13 -0500405
wdenkbf9e3b32004-02-12 00:47:09 +0000406 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
407
408 WATCHDOG_RESET ();
409
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200410 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
wdenkbf9e3b32004-02-12 00:47:09 +0000411
412 monitor_flash_len = (ulong)&__init_end - dest_addr;
413
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200414#if defined(CONFIG_NEEDS_MANUAL_RELOC)
wdenkbf9e3b32004-02-12 00:47:09 +0000415 /*
416 * We have to relocate the command table manually
417 */
Heiko Schocher620f1f62010-09-17 13:10:33 +0200418 fixup_cmdtable(&__u_boot_cmd_start,
419 (ulong)(&__u_boot_cmd_end - &__u_boot_cmd_start));
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200420#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
wdenkbf9e3b32004-02-12 00:47:09 +0000421
wdenkbf9e3b32004-02-12 00:47:09 +0000422 /* there are some other pointer constants we must deal with */
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200423#ifndef CONFIG_ENV_IS_NOWHERE
wdenkbf9e3b32004-02-12 00:47:09 +0000424 env_name_spec += gd->reloc_off;
425#endif
426
427 WATCHDOG_RESET ();
428
429#ifdef CONFIG_LOGBUFFER
430 logbuff_init_ptrs ();
431#endif
432#ifdef CONFIG_POST
433 post_output_backlog ();
434 post_reloc ();
435#endif
436 WATCHDOG_RESET();
437
438#if 0
439 /* instruction cache enabled in cpu_init_f() for faster relocation */
440 icache_enable (); /* it's time to enable the instruction cache */
441#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000442
443 /*
444 * Setup trap handlers
445 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200446 trap_init (CONFIG_SYS_SDRAM_BASE);
wdenk4e5ca3e2003-12-08 01:34:36 +0000447
Peter Tyserd4e8ada2009-08-21 23:05:21 -0500448 /* The Malloc area is immediately below the monitor copy in DRAM */
Peter Tysera483a162009-08-21 23:05:20 -0500449 mem_malloc_init (CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
450 TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN);
Stefan Roesec790b042009-05-11 15:50:12 +0200451 malloc_bin_reloc ();
452
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200453#if !defined(CONFIG_SYS_NO_FLASH)
Peter Tysereddf52b2010-12-28 18:12:05 -0600454 puts ("Flash: ");
wdenk4e5ca3e2003-12-08 01:34:36 +0000455
456 if ((flash_size = flash_init ()) > 0) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200457# ifdef CONFIG_SYS_FLASH_CHECKSUM
wdenkbf9e3b32004-02-12 00:47:09 +0000458 print_size (flash_size, "");
wdenk4e5ca3e2003-12-08 01:34:36 +0000459 /*
460 * Compute and print flash CRC if flashchecksum is set to 'y'
461 *
wdenkbf9e3b32004-02-12 00:47:09 +0000462 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
wdenk4e5ca3e2003-12-08 01:34:36 +0000463 */
464 s = getenv ("flashchecksum");
465 if (s && (*s == 'y')) {
TsiChung Liew11d88b22009-06-12 13:03:34 +0000466 printf (" CRC: %08X",
wdenkbf9e3b32004-02-12 00:47:09 +0000467 crc32 (0,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200468 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
wdenkbf9e3b32004-02-12 00:47:09 +0000469 flash_size)
470 );
wdenk4e5ca3e2003-12-08 01:34:36 +0000471 }
472 putc ('\n');
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200473# else /* !CONFIG_SYS_FLASH_CHECKSUM */
wdenkbf9e3b32004-02-12 00:47:09 +0000474 print_size (flash_size, "\n");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200475# endif /* CONFIG_SYS_FLASH_CHECKSUM */
wdenk4e5ca3e2003-12-08 01:34:36 +0000476 } else {
477 puts (failed);
478 hang ();
479 }
480
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200481 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
wdenkbf9e3b32004-02-12 00:47:09 +0000482 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
483 bd->bi_flashoffset = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200484#else /* CONFIG_SYS_NO_FLASH */
wdenkbf9e3b32004-02-12 00:47:09 +0000485 bd->bi_flashsize = 0;
486 bd->bi_flashstart = 0;
487 bd->bi_flashoffset = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200488#endif /* !CONFIG_SYS_NO_FLASH */
wdenk4e5ca3e2003-12-08 01:34:36 +0000489
490 WATCHDOG_RESET ();
491
492 /* initialize higher level parts of CPU like time base and timers */
493 cpu_init_r ();
494
495 WATCHDOG_RESET ();
496
wdenk4e5ca3e2003-12-08 01:34:36 +0000497#ifdef CONFIG_SPI
Jean-Christophe PLAGNIOL-VILLARDbb1f8b42008-09-05 09:19:30 +0200498# if !defined(CONFIG_ENV_IS_IN_EEPROM)
wdenk4e5ca3e2003-12-08 01:34:36 +0000499 spi_init_f ();
500# endif
501 spi_init_r ();
502#endif
503
504 /* relocate environment function pointers etc. */
505 env_relocate ();
506
wdenk4e5ca3e2003-12-08 01:34:36 +0000507 WATCHDOG_RESET ();
508
TsiChung Liew8e585f02007-06-18 13:50:13 -0500509#if defined(CONFIG_PCI)
510 /*
511 * Do pci configuration
512 */
513 pci_init ();
514#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000515
516 /** leave this here (after malloc(), environment and PCI are working) **/
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200517 /* Initialize stdio devices */
518 stdio_init ();
wdenkbf9e3b32004-02-12 00:47:09 +0000519
520 /* Initialize the jump table for applications */
521 jumptable_init ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000522
523 /* Initialize the console (after the relocation and devices init) */
wdenkbf9e3b32004-02-12 00:47:09 +0000524 console_init_r ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000525
stroesee2c22d72004-12-16 17:55:22 +0000526#if defined(CONFIG_MISC_INIT_R)
527 /* miscellaneous platform dependent initialisations */
528 misc_init_r ();
529#endif
530
Jon Loeliger7def6b32007-07-09 18:02:11 -0500531#if defined(CONFIG_CMD_KGDB)
wdenk4e5ca3e2003-12-08 01:34:36 +0000532 WATCHDOG_RESET ();
533 puts ("KGDB: ");
534 kgdb_init ();
535#endif
536
wdenkbf9e3b32004-02-12 00:47:09 +0000537 debug ("U-Boot relocated to %08lx\n", dest_addr);
538
wdenk4e5ca3e2003-12-08 01:34:36 +0000539 /*
540 * Enable Interrupts
541 */
542 interrupt_init ();
wdenkbf9e3b32004-02-12 00:47:09 +0000543
544 /* Must happen after interrupts are initialized since
545 * an irq handler gets installed
546 */
547 timer_init();
548
wdenkbf9e3b32004-02-12 00:47:09 +0000549#ifdef CONFIG_STATUS_LED
550 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
551#endif
552
wdenk4e5ca3e2003-12-08 01:34:36 +0000553 udelay (20);
wdenkbf9e3b32004-02-12 00:47:09 +0000554
wdenk4e5ca3e2003-12-08 01:34:36 +0000555 /* Insert function pointers now that we have relocated the code */
556
557 /* Initialize from environment */
Simon Glass77b8f202011-10-13 14:43:09 +0000558 load_addr = getenv_ulong("loadaddr", 16, load_addr);
wdenk4e5ca3e2003-12-08 01:34:36 +0000559
560 WATCHDOG_RESET ();
561
Jon Loeliger7def6b32007-07-09 18:02:11 -0500562#if defined(CONFIG_CMD_DOC)
wdenk4e5ca3e2003-12-08 01:34:36 +0000563 WATCHDOG_RESET ();
wdenkbf9e3b32004-02-12 00:47:09 +0000564 puts ("DOC: ");
565 doc_init ();
566#endif
567
Jon Loeliger7def6b32007-07-09 18:02:11 -0500568#if defined(CONFIG_CMD_NAND)
wdenkbf9e3b32004-02-12 00:47:09 +0000569 WATCHDOG_RESET ();
Markus Klotzbuecherd860c342006-04-25 17:00:33 +0200570 puts ("NAND: ");
wdenkbf9e3b32004-02-12 00:47:09 +0000571 nand_init(); /* go init the NAND */
572#endif
573
Luigi 'Comio' Mantellini310cecb2009-10-10 12:42:21 +0200574#ifdef CONFIG_BITBANGMII
575 bb_miiphy_init();
576#endif
Stefan Roesed61ea142007-08-15 14:51:27 +0200577#if defined(CONFIG_CMD_NET)
wdenkbf9e3b32004-02-12 00:47:09 +0000578 WATCHDOG_RESET();
TsiChung Liew8e585f02007-06-18 13:50:13 -0500579#if defined(FEC_ENET)
wdenkbf9e3b32004-02-12 00:47:09 +0000580 eth_init(bd);
581#endif
TsiChung Liew8e585f02007-06-18 13:50:13 -0500582 puts ("Net: ");
TsiChungLiewab77bc52007-08-15 15:39:17 -0500583 eth_initialize (bd);
TsiChung Liew8e585f02007-06-18 13:50:13 -0500584#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000585
586#ifdef CONFIG_POST
587 post_run (NULL, POST_RAM | post_bootmode_get(0));
wdenk4e5ca3e2003-12-08 01:34:36 +0000588#endif
589
Stefan Roesed61ea142007-08-15 14:51:27 +0200590#if defined(CONFIG_CMD_PCMCIA) \
591 && !defined(CONFIG_CMD_IDE)
TsiChung Liew8e585f02007-06-18 13:50:13 -0500592 WATCHDOG_RESET ();
593 puts ("PCMCIA:");
594 pcmcia_init ();
595#endif
596
Stefan Roesed61ea142007-08-15 14:51:27 +0200597#if defined(CONFIG_CMD_IDE)
TsiChung Liew8e585f02007-06-18 13:50:13 -0500598 WATCHDOG_RESET ();
599 puts ("IDE: ");
600 ide_init ();
Stefan Roesed61ea142007-08-15 14:51:27 +0200601#endif
TsiChung Liew8e585f02007-06-18 13:50:13 -0500602
wdenk4e5ca3e2003-12-08 01:34:36 +0000603#ifdef CONFIG_LAST_STAGE_INIT
604 WATCHDOG_RESET ();
605 /*
606 * Some parts can be only initialized if all others (like
607 * Interrupts) are up and running (i.e. the PC-style ISA
608 * keyboard).
609 */
610 last_stage_init ();
611#endif
612
Jon Loeliger7def6b32007-07-09 18:02:11 -0500613#if defined(CONFIG_CMD_BEDBUG)
wdenk4e5ca3e2003-12-08 01:34:36 +0000614 WATCHDOG_RESET ();
615 bedbug_init ();
616#endif
617
wdenkbf9e3b32004-02-12 00:47:09 +0000618#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
wdenk4e5ca3e2003-12-08 01:34:36 +0000619 /*
620 * Export available size of memory for Linux,
621 * taking into account the protected RAM at top of memory
622 */
623 {
Simon Glass77b8f202011-10-13 14:43:09 +0000624 ulong pram = 0;
Simon Glassa5466652012-01-05 17:54:56 +0000625 char memsz[32];
wdenk4e5ca3e2003-12-08 01:34:36 +0000626
Simon Glass77b8f202011-10-13 14:43:09 +0000627#ifdef CONFIG_PRAM
628 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
wdenkbf9e3b32004-02-12 00:47:09 +0000629#endif
630#ifdef CONFIG_LOGBUFFER
631 /* Also take the logbuffer into account (pram is in kB) */
632 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
633#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000634 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
635 setenv ("mem", memsz);
636 }
637#endif
638
wdenkbf9e3b32004-02-12 00:47:09 +0000639#ifdef CONFIG_MODEM_SUPPORT
640 {
641 extern int do_mdm_init;
642 do_mdm_init = gd->do_mdm_init;
643 }
644#endif
645
646#ifdef CONFIG_WATCHDOG
647 /* disable watchdog if environment is set */
648 if ((s = getenv ("watchdog")) != NULL) {
649 if (strncmp (s, "off", 3) == 0) {
650 WATCHDOG_DISABLE ();
651 }
652 }
653#endif /* CONFIG_WATCHDOG*/
654
655
wdenk4e5ca3e2003-12-08 01:34:36 +0000656 /* Initialization complete - start the monitor */
657
658 /* main_loop() can return to retry autoboot, if so just run it again. */
659 for (;;) {
660 WATCHDOG_RESET ();
661 main_loop ();
662 }
663
664 /* NOTREACHED - no way out of command loop except booting */
665}
666
wdenkbf9e3b32004-02-12 00:47:09 +0000667
668void hang(void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000669{
670 puts ("### ERROR ### Please RESET the board ###\n");
671 for (;;);
672}