diff options
Diffstat (limited to 'lib_blackfin/bf533_linux.c')
| -rw-r--r-- | lib_blackfin/bf533_linux.c | 91 | 
1 files changed, 91 insertions, 0 deletions
| diff --git a/lib_blackfin/bf533_linux.c b/lib_blackfin/bf533_linux.c new file mode 100644 index 000000000..88b4da29d --- /dev/null +++ b/lib_blackfin/bf533_linux.c @@ -0,0 +1,91 @@ +/* + * U-boot - bf533_linux.c + * + * Copyright (c) 2005 blackfin.uclinux.org + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ + +/* Dummy functions, currently not in Use */ + +#include <common.h> +#include <command.h> +#include <image.h> +#include <zlib.h> +#include <asm/byteorder.h> + +#define	LINUX_MAX_ENVS		256 +#define	LINUX_MAX_ARGS		256 + +#ifdef CONFIG_SHOW_BOOT_PROGRESS +#include <status_led.h> +#define SHOW_BOOT_PROGRESS(arg)	show_boot_progress(arg) +#else +#define SHOW_BOOT_PROGRESS(arg) +#endif + +#define CMD_LINE_ADDR 0xFF900000  /* L1 scratchpad */ + +#ifdef SHARED_RESOURCES +	extern void swap_to(int device_id); +#endif + +static char *make_command_line(void); + +extern image_header_t header; +extern int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]); +void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[], +		    ulong addr, ulong * len_ptr, int verify) +{ +	int (*appl)(char *cmdline); +	char *cmdline; + +#ifdef SHARED_RESOURCES +	swap_to(FLASH); +#endif + +	appl = (int (*)(char *))ntohl(header.ih_ep); +	printf("Starting Kernel at = %x\n", appl); +	cmdline = make_command_line(); +	if(icache_status()){ +		flush_instruction_cache(); +		icache_disable(); +		} +	if(dcache_status()){ +		flush_data_cache(); +		dcache_disable(); +		} +	(*appl)(cmdline); +} + +char *make_command_line(void) +{ +    char *dest = (char *) CMD_LINE_ADDR; +    char *bootargs; + +    if ( (bootargs = getenv("bootargs")) == NULL ) +	return NULL; + +    strncpy(dest, bootargs, 0x1000); +    dest[0xfff] = 0; +    return dest; +} |