164 lines
3.8 KiB
C
164 lines
3.8 KiB
C
/*
|
|
* Copyright (C) 2007
|
|
* Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* 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
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <malloc.h>
|
|
#include <devices.h>
|
|
#include <version.h>
|
|
#include <net.h>
|
|
#include <environment.h>
|
|
|
|
extern void malloc_bin_reloc (void);
|
|
extern int cpu_init(void);
|
|
extern int board_init(void);
|
|
extern int dram_init(void);
|
|
extern int watchdog_init(void);
|
|
extern int timer_init(void);
|
|
|
|
const char version_string[] = U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
|
|
|
|
unsigned long monitor_flash_len = CFG_MONITOR_LEN;
|
|
|
|
static unsigned long mem_malloc_start;
|
|
static unsigned long mem_malloc_end;
|
|
static unsigned long mem_malloc_brk;
|
|
|
|
static void mem_malloc_init (void)
|
|
{
|
|
|
|
mem_malloc_start = (TEXT_BASE - CFG_GBL_DATA_SIZE - CFG_MALLOC_LEN);
|
|
mem_malloc_end = (mem_malloc_start + CFG_MALLOC_LEN - 16);
|
|
mem_malloc_brk = mem_malloc_start;
|
|
memset ((void *) mem_malloc_start, 0,
|
|
(mem_malloc_end - mem_malloc_start));
|
|
}
|
|
|
|
void *sbrk (ptrdiff_t increment)
|
|
{
|
|
unsigned long old = mem_malloc_brk;
|
|
unsigned long new = old + increment;
|
|
|
|
if ((new < mem_malloc_start) ||
|
|
(new > mem_malloc_end)) {
|
|
return NULL;
|
|
}
|
|
|
|
mem_malloc_brk = new;
|
|
return (void *) old;
|
|
}
|
|
|
|
typedef int (init_fnc_t) (void);
|
|
|
|
init_fnc_t *init_sequence[] =
|
|
{
|
|
cpu_init, /* basic cpu dependent setup */
|
|
board_init, /* basic board dependent setup */
|
|
interrupt_init, /* set up exceptions */
|
|
env_init, /* event init */
|
|
serial_init, /* SCIF init */
|
|
watchdog_init,
|
|
console_init_f,
|
|
display_options,
|
|
checkcpu,
|
|
checkboard,
|
|
dram_init, /* SDRAM init */
|
|
NULL /* Terminate this list */
|
|
};
|
|
|
|
void sh_generic_init (void)
|
|
{
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
bd_t *bd;
|
|
init_fnc_t **init_fnc_ptr;
|
|
char *s, *e;
|
|
int i;
|
|
|
|
memset (gd, 0, CFG_GBL_DATA_SIZE);
|
|
|
|
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
|
|
|
|
gd->bd = (bd_t *) (gd + 1); /* At end of global data */
|
|
gd->baudrate = CONFIG_BAUDRATE;
|
|
|
|
gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
|
|
|
|
bd = gd->bd;
|
|
bd->bi_memstart = CFG_SDRAM_BASE;
|
|
bd->bi_memsize = CFG_SDRAM_SIZE;
|
|
bd->bi_flashstart = CFG_FLASH_BASE;
|
|
#if defined(CFG_SRAM_BASE) && defined(CFG_SRAM_SIZE)
|
|
bd->bi_sramstart= CFG_SRAM_BASE;
|
|
bd->bi_sramsize = CFG_SRAM_SIZE;
|
|
#endif
|
|
bd->bi_baudrate = CONFIG_BAUDRATE;
|
|
|
|
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
|
|
if ((*init_fnc_ptr) () != 0) {
|
|
hang();
|
|
}
|
|
}
|
|
|
|
timer_init();
|
|
|
|
/* flash_init need timer_init().(TMU) */
|
|
bd->bi_flashsize = flash_init();
|
|
printf("FLASH: %dMB\n", bd->bi_flashsize / (1024*1024));
|
|
|
|
mem_malloc_init();
|
|
malloc_bin_reloc();
|
|
env_relocate();
|
|
|
|
#if (CONFIG_COMMANDS & CFG_CMD_NET)
|
|
bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
|
|
s = getenv ("ethaddr");
|
|
for (i = 0; i < 6; ++i) {
|
|
bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
|
|
if (s) s = (*e) ? e + 1 : e;
|
|
}
|
|
#endif
|
|
devices_init();
|
|
jumptable_init();
|
|
console_init_r();
|
|
interrupt_init();
|
|
#ifdef BOARD_LATE_INIT
|
|
board_late_init ();
|
|
#endif
|
|
#if (CONFIG_COMMANDS & CFG_CMD_NET)
|
|
#if defined(CONFIG_NET_MULTI)
|
|
puts ("Net: ");
|
|
#endif
|
|
eth_initialize(gd->bd);
|
|
#endif
|
|
while (1) {
|
|
main_loop();
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************/
|
|
|
|
void hang (void)
|
|
{
|
|
puts ("Board ERROR \n");
|
|
for (;;);
|
|
}
|