2 * (C) Copyright 2007 Michal Simek
3 * (C) Copyright 2004 Atmark Techno, Inc.
5 * Michal SIMEK <monstr@monstr.eu>
6 * Yasushi SHOJI <yashi@atmark-techno.com>
8 * See file CREDITS for list of people who contributed to this
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.
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.
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,
30 #include <timestamp.h>
34 DECLARE_GLOBAL_DATA_PTR;
36 const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
38 #ifdef CONFIG_SYS_GPIO_0
39 extern int gpio_init (void);
41 #ifdef CONFIG_SYS_INTC_0
42 extern int interrupts_init (void);
44 #if defined(CONFIG_CMD_NET)
45 extern int eth_init (bd_t * bis);
46 extern int getenv_IPaddr (char *);
50 * All attempts to come up with a "common" initialization sequence
51 * that works for all boards and architectures failed: some of the
52 * requirements are just _too_ different. To get rid of the resulting
53 * mess of board dependend #ifdef'ed code we now make the whole
54 * initialization sequence configurable to the user.
56 * The requirements for any new initalization function is simple: it
57 * receives a pointer to the "global data" structure as it's only
58 * argument, and returns an integer return code, where 0 means
59 * "continue" and != 0 means "fatal error, hang the system".
61 typedef int (init_fnc_t) (void);
63 init_fnc_t *init_sequence[] = {
66 #ifdef CONFIG_SYS_GPIO_0
69 #ifdef CONFIG_SYS_INTC_0
75 void board_init (void)
78 init_fnc_t **init_fnc_ptr;
79 gd = (gd_t *) CONFIG_SYS_GBL_DATA_OFFSET;
80 #if defined(CONFIG_CMD_FLASH)
83 asm ("nop"); /* FIXME gd is not initialize - wait */
84 memset ((void *)gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
85 gd->bd = (bd_t *) (gd + 1); /* At end of global data */
86 gd->baudrate = CONFIG_BAUDRATE;
88 bd->bi_baudrate = CONFIG_BAUDRATE;
89 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
90 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
91 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
94 * The Malloc area is immediately below the monitor copy in DRAM
95 * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
96 * as our monitory code is run from SDRAM
98 mem_malloc_init (CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
100 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
102 if ((*init_fnc_ptr) () != 0) {
108 printf ("\t\tIcache:%s\n", icache_status() ? "OK" : "FAIL");
109 printf ("\t\tDcache:%s\n", dcache_status() ? "OK" : "FAIL");
110 printf ("\tU-Boot Start:0x%08x\n", TEXT_BASE);
112 #if defined(CONFIG_CMD_FLASH)
114 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
115 if (0 < (flash_size = flash_init ())) {
116 bd->bi_flashsize = flash_size;
117 bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + flash_size;
118 # ifdef CONFIG_SYS_FLASH_CHECKSUM
119 print_size (flash_size, "");
121 * Compute and print flash CRC if flashchecksum is set to 'y'
123 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
125 s = getenv ("flashchecksum");
126 if (s && (*s == 'y')) {
127 printf (" CRC: %08X",
128 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
132 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
133 print_size (flash_size, "\n");
134 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
136 puts ("Flash init FAILED");
137 bd->bi_flashstart = 0;
138 bd->bi_flashsize = 0;
139 bd->bi_flashoffset = 0;
143 #if defined(CONFIG_CMD_NET)
145 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
149 /* relocate environment function pointers etc. */
161 puts ("### ERROR ### Please RESET the board ###\n");