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Diffstat (limited to 'lib_blackfin/bootm.c')
-rw-r--r--lib_blackfin/bootm.c77
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;
}