[thirdparty/u-boot.git] / env / nowhere.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2000-2010
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 * Andreas Heppel <aheppel@sysgo.de>
 */

#include <common.h>
#include <command.h>
#include <env.h>
#include <env_internal.h>
#include <linux/stddef.h>

DECLARE_GLOBAL_DATA_PTR;

/*
 * Because we only ever have the default environment available we must mark
 * it as invalid.
 */
static int env_nowhere_init(void)
{
	gd->env_addr	= (ulong)&default_environment[0];
	gd->env_valid	= ENV_INVALID;

	return 0;
}

static int env_nowhere_load(void)
{
	/*
	 * for SPL, set env_valid = ENV_INVALID is enough as env_get_char()
	 * return the default env if env_get is used
	 * and SPL don't used env_import to reduce its size
	 * For U-Boot proper, import the default environment to allow reload.
	 */
	if (!IS_ENABLED(CONFIG_SPL_BUILD))
		env_set_default(NULL, 0);

	gd->env_valid	= ENV_INVALID;

	return 0;
}

U_BOOT_ENV_LOCATION(nowhere) = {
	.location	= ENVL_NOWHERE,
	.init		= env_nowhere_init,
	.load		= env_nowhere_load,
	ENV_NAME("nowhere")
};
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
0bc4a1ac	2	/*
ea882baf	3	* (C) Copyright 2000-2010
0bc4a1ac WD	4	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	5	*
	6	* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
	7	* Andreas Heppel <aheppel@sysgo.de>
0bc4a1ac WD	8	*/
	9
	10	#include <common.h>
0bc4a1ac	11	#include <command.h>
db197010	12	#include <env.h>
f3998fdc	13	#include <env_internal.h>
0bc4a1ac	14	#include <linux/stddef.h>
0bc4a1ac	15
d87080b7 WD	16	DECLARE_GLOBAL_DATA_PTR;
d87080b7 WD	17
eeba55cb TR	18	/*
	19	* Because we only ever have the default environment available we must mark
	20	* it as invalid.
	21	*/
	22	static int env_nowhere_init(void)
	23	{
	24	gd->env_addr = (ulong)&default_environment[0];
	25	gd->env_valid = ENV_INVALID;
	26
	27	return 0;
	28	}
	29
ad3fec23 PD	30	static int env_nowhere_load(void)
	31	{
	32	/*
7291332a	33	* for SPL, set env_valid = ENV_INVALID is enough as env_get_char()
ad3fec23 PD	34	* return the default env if env_get is used
	35	* and SPL don't used env_import to reduce its size
	36	* For U-Boot proper, import the default environment to allow reload.
	37	*/
	38	if (!IS_ENABLED(CONFIG_SPL_BUILD))
	39	env_set_default(NULL, 0);
	40
	41	gd->env_valid = ENV_INVALID;
	42
	43	return 0;
	44	}
	45
4415f1d1 SG	46	U_BOOT_ENV_LOCATION(nowhere) = {
4415f1d1 SG	47	.location = ENVL_NOWHERE,
eeba55cb	48	.init = env_nowhere_init,
ad3fec23	49	.load = env_nowhere_load,
ac358beb	50	ENV_NAME("nowhere")
4415f1d1	51	};