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 * The Malloc area is immediately below the monitor copy in DRAM
51 * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
52 * as our monitory code is run from SDRAM
54 static void mem_malloc_init (void)
56 mem_malloc_end = (CONFIG_SYS_MALLOC_BASE + CONFIG_SYS_MALLOC_LEN);
57 mem_malloc_start = CONFIG_SYS_MALLOC_BASE;
58 mem_malloc_brk = mem_malloc_start;
59 memset ((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
63 * All attempts to come up with a "common" initialization sequence
64 * that works for all boards and architectures failed: some of the
65 * requirements are just _too_ different. To get rid of the resulting
66 * mess of board dependend #ifdef'ed code we now make the whole
67 * initialization sequence configurable to the user.
69 * The requirements for any new initalization function is simple: it
70 * receives a pointer to the "global data" structure as it's only
71 * argument, and returns an integer return code, where 0 means
72 * "continue" and != 0 means "fatal error, hang the system".
74 typedef int (init_fnc_t) (void);
76 init_fnc_t *init_sequence[] = {
79 #ifdef CONFIG_SYS_GPIO_0
82 #ifdef CONFIG_SYS_INTC_0
88 void board_init (void)
91 init_fnc_t **init_fnc_ptr;
92 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 */
106 /* Initialise malloc() area */
109 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
111 if ((*init_fnc_ptr) () != 0) {
117 printf ("\t\tIcache:%s\n", icache_status() ? "OK" : "FAIL");
118 printf ("\t\tDcache:%s\n", dcache_status() ? "OK" : "FAIL");
119 printf ("\tU-Boot Start:0x%08x\n", TEXT_BASE);
121 #if defined(CONFIG_CMD_FLASH)
123 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
124 if (0 < (flash_size = flash_init ())) {
125 bd->bi_flashsize = flash_size;
126 bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + flash_size;
127 # ifdef CONFIG_SYS_FLASH_CHECKSUM
128 print_size (flash_size, "");
130 * Compute and print flash CRC if flashchecksum is set to 'y'
132 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
134 s = getenv ("flashchecksum");
135 if (s && (*s == 'y')) {
136 printf (" CRC: %08X",
137 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
141 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
142 print_size (flash_size, "\n");
143 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
145 puts ("Flash init FAILED");
146 bd->bi_flashstart = 0;
147 bd->bi_flashsize = 0;
148 bd->bi_flashoffset = 0;
152 #if defined(CONFIG_CMD_NET)
154 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
158 /* relocate environment function pointers etc. */
170 puts ("### ERROR ### Please RESET the board ###\n");