xref: /OK3568_Linux_fs/u-boot/env/nowhere.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * (C) Copyright 2000-2010
3*4882a593Smuzhiyun  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
6*4882a593Smuzhiyun  * Andreas Heppel <aheppel@sysgo.de>
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun  * SPDX-License-Identifier:	GPL-2.0+
9*4882a593Smuzhiyun  */
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun #include <common.h>
12*4882a593Smuzhiyun #include <command.h>
13*4882a593Smuzhiyun #include <environment.h>
14*4882a593Smuzhiyun #include <linux/stddef.h>
15*4882a593Smuzhiyun 
16*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
17*4882a593Smuzhiyun 
18*4882a593Smuzhiyun /*
19*4882a593Smuzhiyun  * Because we only ever have the default environment available we must mark
20*4882a593Smuzhiyun  * it as invalid.
21*4882a593Smuzhiyun  */
env_nowhere_init(void)22*4882a593Smuzhiyun static int env_nowhere_init(void)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun 	gd->env_addr	= (ulong)&default_environment[0];
25*4882a593Smuzhiyun 	gd->env_valid	= ENV_INVALID;
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun 	return 0;
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun 
30*4882a593Smuzhiyun U_BOOT_ENV_LOCATION(nowhere) = {
31*4882a593Smuzhiyun 	.location	= ENVL_NOWHERE,
32*4882a593Smuzhiyun 	.init		= env_nowhere_init,
33*4882a593Smuzhiyun 	ENV_NAME("nowhere")
34*4882a593Smuzhiyun };
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