blob: 88b4da29df91fccec0a0a4af3bc24c3c1d12775e [file] [log] [blame]
Wolfgang Denk6cb142f2006-03-12 02:12:27 +01001/*
2 * U-boot - bf533_linux.c
3 *
4 * Copyright (c) 2005 blackfin.uclinux.org
5 *
6 * (C) Copyright 2000-2004
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 *
9 * See file CREDITS for list of people who contributed to this
10 * project.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * MA 02111-1307 USA
26 */
27
28/* Dummy functions, currently not in Use */
29
30#include <common.h>
31#include <command.h>
32#include <image.h>
33#include <zlib.h>
34#include <asm/byteorder.h>
35
36#define LINUX_MAX_ENVS 256
37#define LINUX_MAX_ARGS 256
38
39#ifdef CONFIG_SHOW_BOOT_PROGRESS
40#include <status_led.h>
41#define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
42#else
43#define SHOW_BOOT_PROGRESS(arg)
44#endif
45
46#define CMD_LINE_ADDR 0xFF900000 /* L1 scratchpad */
47
48#ifdef SHARED_RESOURCES
Wolfgang Denk8e7b7032006-03-12 02:55:22 +010049 extern void swap_to(int device_id);
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010050#endif
51
52static char *make_command_line(void);
53
54extern image_header_t header;
55extern int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
56void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
57 ulong addr, ulong * len_ptr, int verify)
58{
59 int (*appl)(char *cmdline);
60 char *cmdline;
61
62#ifdef SHARED_RESOURCES
63 swap_to(FLASH);
64#endif
65
66 appl = (int (*)(char *))ntohl(header.ih_ep);
67 printf("Starting Kernel at = %x\n", appl);
68 cmdline = make_command_line();
69 if(icache_status()){
70 flush_instruction_cache();
71 icache_disable();
72 }
73 if(dcache_status()){
74 flush_data_cache();
75 dcache_disable();
76 }
77 (*appl)(cmdline);
78}
79
80char *make_command_line(void)
81{
82 char *dest = (char *) CMD_LINE_ADDR;
83 char *bootargs;
84
85 if ( (bootargs = getenv("bootargs")) == NULL )
86 return NULL;
87
88 strncpy(dest, bootargs, 0x1000);
89 dest[0xfff] = 0;
90 return dest;
91}