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507bbe3e | 1 | /* |
cfc67116 | 2 | * (C) Copyright 2007 Michal Simek |
507bbe3e WD |
3 | * (C) Copyright 2004 Atmark Techno, Inc. |
4 | * | |
cfc67116 | 5 | * Michal SIMEK <monstr@monstr.eu> |
507bbe3e WD |
6 | * Yasushi SHOJI <yashi@atmark-techno.com> |
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 | |
cfc67116 | 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
507bbe3e WD |
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 <command.h> | |
29 | #include <malloc.h> | |
561858ee | 30 | #include <timestamp.h> |
507bbe3e | 31 | #include <version.h> |
7abf0c58 | 32 | #include <watchdog.h> |
507bbe3e | 33 | |
d87080b7 WD |
34 | DECLARE_GLOBAL_DATA_PTR; |
35 | ||
561858ee | 36 | const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")"; |
cfc67116 | 37 | |
6d0f6bcf | 38 | #ifdef CONFIG_SYS_GPIO_0 |
cfc67116 MS |
39 | extern int gpio_init (void); |
40 | #endif | |
6d0f6bcf | 41 | #ifdef CONFIG_SYS_INTC_0 |
cfc67116 MS |
42 | extern int interrupts_init (void); |
43 | #endif | |
7def6b34 | 44 | #if defined(CONFIG_CMD_NET) |
cfc67116 | 45 | extern int eth_init (bd_t * bis); |
cfc67116 | 46 | #endif |
507bbe3e | 47 | |
507bbe3e WD |
48 | /* |
49 | * All attempts to come up with a "common" initialization sequence | |
50 | * that works for all boards and architectures failed: some of the | |
51 | * requirements are just _too_ different. To get rid of the resulting | |
52 | * mess of board dependend #ifdef'ed code we now make the whole | |
53 | * initialization sequence configurable to the user. | |
54 | * | |
55 | * The requirements for any new initalization function is simple: it | |
56 | * receives a pointer to the "global data" structure as it's only | |
57 | * argument, and returns an integer return code, where 0 means | |
58 | * "continue" and != 0 means "fatal error, hang the system". | |
59 | */ | |
60 | typedef int (init_fnc_t) (void); | |
61 | ||
62 | init_fnc_t *init_sequence[] = { | |
cfc67116 MS |
63 | env_init, |
64 | serial_init, | |
6d0f6bcf | 65 | #ifdef CONFIG_SYS_GPIO_0 |
cfc67116 MS |
66 | gpio_init, |
67 | #endif | |
6d0f6bcf | 68 | #ifdef CONFIG_SYS_INTC_0 |
cfc67116 MS |
69 | interrupts_init, |
70 | #endif | |
507bbe3e WD |
71 | NULL, |
72 | }; | |
73 | ||
cfc67116 | 74 | void board_init (void) |
7abf0c58 | 75 | { |
857cad37 | 76 | bd_t *bd; |
7abf0c58 | 77 | init_fnc_t **init_fnc_ptr; |
6d0f6bcf | 78 | gd = (gd_t *) CONFIG_SYS_GBL_DATA_OFFSET; |
7def6b34 | 79 | #if defined(CONFIG_CMD_FLASH) |
cfc67116 MS |
80 | ulong flash_size = 0; |
81 | #endif | |
82 | asm ("nop"); /* FIXME gd is not initialize - wait */ | |
6d0f6bcf | 83 | memset ((void *)gd, 0, CONFIG_SYS_GBL_DATA_SIZE); |
cfc67116 | 84 | gd->bd = (bd_t *) (gd + 1); /* At end of global data */ |
857cad37 | 85 | gd->baudrate = CONFIG_BAUDRATE; |
857cad37 WD |
86 | bd = gd->bd; |
87 | bd->bi_baudrate = CONFIG_BAUDRATE; | |
6d0f6bcf JCPV |
88 | bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; |
89 | bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; | |
c85ff055 | 90 | gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ |
cfc67116 | 91 | |
d4e8ada0 PT |
92 | /* |
93 | * The Malloc area is immediately below the monitor copy in DRAM | |
94 | * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off | |
95 | * as our monitory code is run from SDRAM | |
96 | */ | |
a483a167 | 97 | mem_malloc_init (CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN); |
857cad37 | 98 | |
7abf0c58 WD |
99 | for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { |
100 | WATCHDOG_RESET (); | |
101 | if ((*init_fnc_ptr) () != 0) { | |
102 | hang (); | |
103 | } | |
104 | } | |
105 | ||
b4f8dda3 | 106 | puts ("SDRAM :\n"); |
b4f8dda3 MS |
107 | printf ("\t\tIcache:%s\n", icache_status() ? "OK" : "FAIL"); |
108 | printf ("\t\tDcache:%s\n", dcache_status() ? "OK" : "FAIL"); | |
b4f8dda3 MS |
109 | printf ("\tU-Boot Start:0x%08x\n", TEXT_BASE); |
110 | ||
7def6b34 | 111 | #if defined(CONFIG_CMD_FLASH) |
b4f8dda3 | 112 | puts ("FLASH: "); |
6d0f6bcf | 113 | bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; |
cfc67116 MS |
114 | if (0 < (flash_size = flash_init ())) { |
115 | bd->bi_flashsize = flash_size; | |
6d0f6bcf | 116 | bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + flash_size; |
b4f8dda3 MS |
117 | # ifdef CONFIG_SYS_FLASH_CHECKSUM |
118 | print_size (flash_size, ""); | |
119 | /* | |
120 | * Compute and print flash CRC if flashchecksum is set to 'y' | |
121 | * | |
122 | * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX | |
123 | */ | |
124 | s = getenv ("flashchecksum"); | |
125 | if (s && (*s == 'y')) { | |
126 | printf (" CRC: %08X", | |
127 | crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size) | |
128 | ); | |
129 | } | |
130 | putc ('\n'); | |
131 | # else /* !CONFIG_SYS_FLASH_CHECKSUM */ | |
132 | print_size (flash_size, "\n"); | |
133 | # endif /* CONFIG_SYS_FLASH_CHECKSUM */ | |
cfc67116 MS |
134 | } else { |
135 | puts ("Flash init FAILED"); | |
136 | bd->bi_flashstart = 0; | |
137 | bd->bi_flashsize = 0; | |
138 | bd->bi_flashoffset = 0; | |
139 | } | |
140 | #endif | |
141 | ||
7def6b34 | 142 | #if defined(CONFIG_CMD_NET) |
cfc67116 MS |
143 | /* IP Address */ |
144 | bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); | |
145 | eth_init (bd); | |
146 | #endif | |
147 | ||
148 | /* relocate environment function pointers etc. */ | |
149 | env_relocate (); | |
150 | ||
7abf0c58 WD |
151 | /* main_loop */ |
152 | for (;;) { | |
153 | WATCHDOG_RESET (); | |
154 | main_loop (); | |
155 | } | |
156 | } | |
157 | ||
507bbe3e WD |
158 | void hang (void) |
159 | { | |
160 | puts ("### ERROR ### Please RESET the board ###\n"); | |
cfc67116 | 161 | for (;;) ; |
507bbe3e | 162 | } |