/*
+ * (C) Copyright 2007 Michal Simek
* (C) Copyright 2004 Atmark Techno, Inc.
*
+ * Michal SIMEK <monstr@monstr.eu>
* Yasushi SHOJI <yashi@atmark-techno.com>
*
* See file CREDITS for list of people who contributed to this
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
#include <common.h>
#include <command.h>
#include <malloc.h>
+#include <timestamp.h>
#include <version.h>
+#include <watchdog.h>
-const char version_string[] =
- U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
+DECLARE_GLOBAL_DATA_PTR;
-/*
- * Begin and End of memory area for malloc(), and current "brk"
- */
-static ulong mem_malloc_start;
-static ulong mem_malloc_end;
-static ulong mem_malloc_brk;
-
-
-void *sbrk (ptrdiff_t increment)
-{
- ulong old = mem_malloc_brk;
- ulong new = old + increment;
+const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
- if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
- return (NULL);
- }
- mem_malloc_brk = new;
- return ((void *) old);
-}
+#ifdef CONFIG_SYS_GPIO_0
+extern int gpio_init (void);
+#endif
+#ifdef CONFIG_SYS_INTC_0
+extern int interrupts_init (void);
+#endif
+#if defined(CONFIG_CMD_NET)
+extern int eth_init (bd_t * bis);
+extern int getenv_IPaddr (char *);
+#endif
/*
* All attempts to come up with a "common" initialization sequence
typedef int (init_fnc_t) (void);
init_fnc_t *init_sequence[] = {
- serial_init, /* serial communications setup */
+ env_init,
+ serial_init,
+#ifdef CONFIG_SYS_GPIO_0
+ gpio_init,
+#endif
+#ifdef CONFIG_SYS_INTC_0
+ interrupts_init,
+#endif
NULL,
};
+void board_init (void)
+{
+ bd_t *bd;
+ init_fnc_t **init_fnc_ptr;
+ gd = (gd_t *) CONFIG_SYS_GBL_DATA_OFFSET;
+#if defined(CONFIG_CMD_FLASH)
+ ulong flash_size = 0;
+#endif
+ asm ("nop"); /* FIXME gd is not initialize - wait */
+ memset ((void *)gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
+ gd->bd = (bd_t *) (gd + 1); /* At end of global data */
+ gd->baudrate = CONFIG_BAUDRATE;
+ bd = gd->bd;
+ bd->bi_baudrate = CONFIG_BAUDRATE;
+ bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+ bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
+ gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
+
+ /*
+ * The Malloc area is immediately below the monitor copy in DRAM
+ * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
+ * as our monitory code is run from SDRAM
+ */
+ mem_malloc_init (CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
+
+ for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+ WATCHDOG_RESET ();
+ if ((*init_fnc_ptr) () != 0) {
+ hang ();
+ }
+ }
+
+ puts ("SDRAM :\n");
+ printf ("\t\tIcache:%s\n", icache_status() ? "OK" : "FAIL");
+ printf ("\t\tDcache:%s\n", dcache_status() ? "OK" : "FAIL");
+ printf ("\tU-Boot Start:0x%08x\n", TEXT_BASE);
+
+#if defined(CONFIG_CMD_FLASH)
+ puts ("FLASH: ");
+ bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
+ if (0 < (flash_size = flash_init ())) {
+ bd->bi_flashsize = flash_size;
+ bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + flash_size;
+# ifdef CONFIG_SYS_FLASH_CHECKSUM
+ print_size (flash_size, "");
+ /*
+ * Compute and print flash CRC if flashchecksum is set to 'y'
+ *
+ * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
+ */
+ s = getenv ("flashchecksum");
+ if (s && (*s == 'y')) {
+ printf (" CRC: %08X",
+ crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
+ );
+ }
+ putc ('\n');
+# else /* !CONFIG_SYS_FLASH_CHECKSUM */
+ print_size (flash_size, "\n");
+# endif /* CONFIG_SYS_FLASH_CHECKSUM */
+ } else {
+ puts ("Flash init FAILED");
+ bd->bi_flashstart = 0;
+ bd->bi_flashsize = 0;
+ bd->bi_flashoffset = 0;
+ }
+#endif
+
+#if defined(CONFIG_CMD_NET)
+ /* IP Address */
+ bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
+ eth_init (bd);
+#endif
+
+ /* relocate environment function pointers etc. */
+ env_relocate ();
+
+ /* main_loop */
+ for (;;) {
+ WATCHDOG_RESET ();
+ main_loop ();
+ }
+}
+
void hang (void)
{
puts ("### ERROR ### Please RESET the board ###\n");
- for (;;);
+ for (;;) ;
}