diff options
Diffstat (limited to 'lib_blackfin/bootm.c')
| -rw-r--r-- | lib_blackfin/bootm.c | 77 |
1 files changed, 22 insertions, 55 deletions
diff --git a/lib_blackfin/bootm.c b/lib_blackfin/bootm.c index 1ea80f4..bea11ed 100644 --- a/lib_blackfin/bootm.c +++ b/lib_blackfin/bootm.c @@ -1,52 +1,39 @@ /* - * U-boot - bf533_linux.c + * U-boot - bootm.c - misc boot helper functions * - * Copyright (c) 2005-2007 Analog Devices Inc. + * Copyright (c) 2005-2008 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 + * Licensed under the GPL-2 or later. */ -/* Dummy functions, currently not in Use */ - #include <common.h> #include <command.h> #include <image.h> -#include <zlib.h> -#include <asm/byteorder.h> +#include <asm/blackfin.h> -#define LINUX_MAX_ENVS 256 -#define LINUX_MAX_ARGS 256 - -#define CMD_LINE_ADDR 0xFF900000 /* L1 scratchpad */ +extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); #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); +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; +} -void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[], +void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], bootm_headers_t *images) { int (*appl) (char *cmdline); @@ -54,7 +41,7 @@ void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[], ulong ep = 0; if (!images->autostart) - return ; + return; #ifdef SHARED_RESOURCES swap_to(FLASH); @@ -80,33 +67,13 @@ void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[], 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(); - } + icache_disable(); + dcache_disable(); (*appl) (cmdline); /* does not return */ return; -error: + error: if (images->autostart) do_reset (cmdtp, flag, argc, argv); - return; -} - -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; } |