[people/ms/u-boot.git] / lib_blackfin / bootm.c

/*
 * U-boot - bootm.c - misc boot helper functions
 *
 * Copyright (c) 2005-2008 Analog Devices Inc.
 *
 * (C) Copyright 2000-2004
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * Licensed under the GPL-2 or later.
 */

#include <common.h>
#include <command.h>
#include <image.h>
#include <asm/blackfin.h>

#ifdef SHARED_RESOURCES
extern void swap_to(int device_id);
#endif

static char *make_command_line(void)
{
	char *dest = (char *)CMD_LINE_ADDR;
	char *bootargs = getenv("bootargs");

	if (bootargs == NULL)
		return NULL;

	strncpy(dest, bootargs, 0x1000);
	dest[0xfff] = 0;
	return dest;
}

int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
{
	int	(*appl) (char *cmdline);
	char	*cmdline;

#ifdef SHARED_RESOURCES
	swap_to(FLASH);
#endif

	appl = (int (*)(char *))images->ep;

	printf("Starting Kernel at = %x\n", appl);
	cmdline = make_command_line();
	icache_disable();
	dcache_disable();
	(*appl) (cmdline);
	/* does not return */
error:
	return 1;
}
Commit	Line	Data
	1	/*
	2	* U-boot - bootm.c - misc boot helper functions
	3	*
	4	* Copyright (c) 2005-2008 Analog Devices Inc.
	5	*
	6	* (C) Copyright 2000-2004
	7	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	8	*
	9	* Licensed under the GPL-2 or later.
	10	*/
	11
	12	#include <common.h>
	13	#include <command.h>
	14	#include <image.h>
	15	#include <asm/blackfin.h>
	16
	17	#ifdef SHARED_RESOURCES
	18	extern void swap_to(int device_id);
	19	#endif
	20
	21	static char *make_command_line(void)
	22	{
	23	char dest = (char )CMD_LINE_ADDR;
	24	char *bootargs = getenv("bootargs");
	25
	26	if (bootargs == NULL)
	27	return NULL;
	28
	29	strncpy(dest, bootargs, 0x1000);
	30	dest[0xfff] = 0;
	31	return dest;
	32	}
	33
	34	int do_bootm_linux(int flag, int argc, char argv[], bootm_headers_t images)
	35	{
	36	int (appl) (char cmdline);
	37	char *cmdline;
	38
	39	#ifdef SHARED_RESOURCES
	40	swap_to(FLASH);
	41	#endif
	42
	43	appl = (int ()(char ))images->ep;
	44
	45	printf("Starting Kernel at = %x\n", appl);
	46	cmdline = make_command_line();
	47	icache_disable();
	48	dcache_disable();
	49	(*appl) (cmdline);
	50	/* does not return */
	51	error:
	52	return 1;
	53	}