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>
33 #include <stdio_dev.h>
35 DECLARE_GLOBAL_DATA_PTR;
37 const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
39 #ifdef CONFIG_SYS_GPIO_0
40 extern int gpio_init (void);
42 #ifdef CONFIG_SYS_INTC_0
43 extern int interrupts_init (void);
45 #if defined(CONFIG_CMD_NET)
46 extern int eth_init (bd_t * bis);
48 #ifdef CONFIG_SYS_TIMER_0
49 extern int timer_init (void);
51 #ifdef CONFIG_SYS_FSL_2
52 extern void fsl_init2 (void);
56 * All attempts to come up with a "common" initialization sequence
57 * that works for all boards and architectures failed: some of the
58 * requirements are just _too_ different. To get rid of the resulting
59 * mess of board dependend #ifdef'ed code we now make the whole
60 * initialization sequence configurable to the user.
62 * The requirements for any new initalization function is simple: it
63 * receives a pointer to the "global data" structure as it's only
64 * argument, and returns an integer return code, where 0 means
65 * "continue" and != 0 means "fatal error, hang the system".
67 typedef int (init_fnc_t) (void);
69 init_fnc_t *init_sequence[] = {
72 #ifdef CONFIG_SYS_GPIO_0
75 #ifdef CONFIG_SYS_INTC_0
78 #ifdef CONFIG_SYS_TIMER_0
81 #ifdef CONFIG_SYS_FSL_2
87 void board_init (void)
90 init_fnc_t **init_fnc_ptr;
91 gd = (gd_t *) CONFIG_SYS_GBL_DATA_OFFSET;
93 #if defined(CONFIG_CMD_FLASH)
96 asm ("nop"); /* FIXME gd is not initialize - wait */
97 memset ((void *)gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
98 gd->bd = (bd_t *) (gd + 1); /* At end of global data */
99 gd->baudrate = CONFIG_BAUDRATE;
101 bd->bi_baudrate = CONFIG_BAUDRATE;
102 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
103 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
104 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
107 * The Malloc area is immediately below the monitor copy in DRAM
108 * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
109 * as our monitory code is run from SDRAM
111 mem_malloc_init (CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
113 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
115 if ((*init_fnc_ptr) () != 0) {
121 printf ("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
122 printf ("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
123 printf ("\tU-Boot Start:0x%08x\n", TEXT_BASE);
125 #if defined(CONFIG_CMD_FLASH)
127 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
128 if (0 < (flash_size = flash_init ())) {
129 bd->bi_flashsize = flash_size;
130 bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + flash_size;
131 # ifdef CONFIG_SYS_FLASH_CHECKSUM
132 print_size (flash_size, "");
134 * Compute and print flash CRC if flashchecksum is set to 'y'
136 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
138 s = getenv ("flashchecksum");
139 if (s && (*s == 'y')) {
140 printf (" CRC: %08X",
141 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
145 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
146 print_size (flash_size, "\n");
147 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
149 puts ("Flash init FAILED");
150 bd->bi_flashstart = 0;
151 bd->bi_flashsize = 0;
152 bd->bi_flashoffset = 0;
156 /* relocate environment function pointers etc. */
159 /* Initialize stdio devices */
162 if ((s = getenv ("loadaddr")) != NULL) {
163 load_addr = simple_strtoul (s, NULL, 16);
166 #if defined(CONFIG_CMD_NET)
168 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
181 puts ("### ERROR ### Please RESET the board ###\n");