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,
32 #include <stdio_dev.h>
34 #include <asm/processor.h>
36 DECLARE_GLOBAL_DATA_PTR;
38 #ifdef CONFIG_SYS_GPIO_0
39 extern int gpio_init (void);
41 #ifdef CONFIG_SYS_INTC_0
42 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[] = {
73 #ifdef CONFIG_SYS_GPIO_0
76 #ifdef CONFIG_SYS_INTC_0
79 #ifdef CONFIG_SYS_TIMER_0
82 #ifdef CONFIG_SYS_FSL_2
88 unsigned long monitor_flash_len;
90 void board_init (void)
93 init_fnc_t **init_fnc_ptr;
94 gd = (gd_t *) (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
95 bd = (bd_t *) (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET \
96 - GENERATED_BD_INFO_SIZE);
98 #if defined(CONFIG_CMD_FLASH)
101 asm ("nop"); /* FIXME gd is not initialize - wait */
102 memset ((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
103 memset ((void *)bd, 0, GENERATED_BD_INFO_SIZE);
105 gd->baudrate = CONFIG_BAUDRATE;
106 bd->bi_baudrate = CONFIG_BAUDRATE;
107 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
108 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
109 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
111 monitor_flash_len = __end - __text_start;
114 * The Malloc area is immediately below the monitor copy in DRAM
115 * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
116 * as our monitory code is run from SDRAM
118 mem_malloc_init (CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
120 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
122 if ((*init_fnc_ptr) () != 0) {
128 printf ("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
129 printf ("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
130 printf ("\tU-Boot Start:0x%08x\n", CONFIG_SYS_TEXT_BASE);
132 #if defined(CONFIG_CMD_FLASH)
134 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
135 if (0 < (flash_size = flash_init ())) {
136 bd->bi_flashsize = flash_size;
137 bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + flash_size;
138 # ifdef CONFIG_SYS_FLASH_CHECKSUM
139 print_size (flash_size, "");
141 * Compute and print flash CRC if flashchecksum is set to 'y'
143 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
145 s = getenv ("flashchecksum");
146 if (s && (*s == 'y')) {
147 printf (" CRC: %08X",
148 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
152 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
153 print_size (flash_size, "\n");
154 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
156 puts ("Flash init FAILED");
157 bd->bi_flashstart = 0;
158 bd->bi_flashsize = 0;
159 bd->bi_flashoffset = 0;
163 /* relocate environment function pointers etc. */
166 /* Initialize stdio devices */
169 /* Initialize the jump table for applications */
172 /* Initialize the console (after the relocation and devices init) */
175 /* Initialize from environment */
176 load_addr = getenv_ulong("loadaddr", 16, load_addr);
178 #if defined(CONFIG_CMD_NET)
180 eth_initialize(gd->bd);
183 eth_getenv_enetaddr("ethaddr", enetaddr);
184 printf("MAC: %pM\n", enetaddr);
196 puts ("### ERROR ### Please RESET the board ###\n");