diff options
Diffstat (limited to 'lib_blackfin/bootm.c')
-rw-r--r-- | lib_blackfin/bootm.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/lib_blackfin/bootm.c b/lib_blackfin/bootm.c new file mode 100644 index 0000000..6299415 --- /dev/null +++ b/lib_blackfin/bootm.c @@ -0,0 +1,84 @@ +/* + * U-boot - bf533_linux.c + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * (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., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 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 + +#define CMD_LINE_ADDR 0xFF900000 /* L1 scratchpad */ + +#ifdef SHARED_RESOURCES +extern void swap_to(int device_id); +#endif + +extern void flush_instruction_cache(void); +extern void flush_data_cache(void); +static char *make_command_line(void); + +void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[], + image_header_t *hdr, int verify) +{ + int (*appl) (char *cmdline); + char *cmdline; + +#ifdef SHARED_RESOURCES + swap_to(FLASH); +#endif + + appl = (int (*)(char *))image_get_ep (hdr); + 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; +} |