diff options
Diffstat (limited to 'env/remote.c')
| -rw-r--r-- | env/remote.c | 64 | 
1 files changed, 64 insertions, 0 deletions
| diff --git a/env/remote.c b/env/remote.c new file mode 100644 index 00000000000..c013fdd4b01 --- /dev/null +++ b/env/remote.c @@ -0,0 +1,64 @@ +/* + * (C) Copyright 2011-2012 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier:	GPL-2.0+ + */ + +/* #define DEBUG */ + +#include <common.h> +#include <command.h> +#include <environment.h> +#include <linux/stddef.h> + +#ifdef ENV_IS_EMBEDDED +env_t *env_ptr = &environment; +#else /* ! ENV_IS_EMBEDDED */ +env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; +#endif /* ENV_IS_EMBEDDED */ + +DECLARE_GLOBAL_DATA_PTR; + +#if !defined(CONFIG_ENV_OFFSET) +#define CONFIG_ENV_OFFSET 0 +#endif + +static int env_remote_init(void) +{ +	if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) { +		gd->env_addr = (ulong)&(env_ptr->data); +		gd->env_valid = ENV_VALID; +		return 0; +	} + +	return -ENOENT; +} + +#ifdef CONFIG_CMD_SAVEENV +static int env_remote_save(void) +{ +#ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE +	printf("Can not support the 'saveenv' when boot from SRIO or PCIE!\n"); +	return 1; +#else +	return 0; +#endif +} +#endif /* CONFIG_CMD_SAVEENV */ + +static int env_remote_load(void) +{ +#ifndef ENV_IS_EMBEDDED +	env_import((char *)env_ptr, 1); +#endif + +	return 0; +} + +U_BOOT_ENV_LOCATION(remote) = { +	.location	= ENVL_REMOTE, +	ENV_NAME("Remote") +	.load		= env_remote_load, +	.save		= env_save_ptr(env_remote_save), +	.init		= env_remote_init, +}; | 
