diff options
Diffstat (limited to 'roms/u-boot/env/remote.c')
-rw-r--r-- | roms/u-boot/env/remote.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/roms/u-boot/env/remote.c b/roms/u-boot/env/remote.c new file mode 100644 index 000000000..166bebf52 --- /dev/null +++ b/roms/u-boot/env/remote.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2011-2012 Freescale Semiconductor, Inc. + */ + +/* #define DEBUG */ + +#include <common.h> +#include <command.h> +#include <env_internal.h> +#include <asm/global_data.h> +#include <linux/stddef.h> +#include <u-boot/crc.h> + +#ifdef ENV_IS_EMBEDDED +static env_t *env_ptr = &environment; +#else /* ! ENV_IS_EMBEDDED */ +static env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; +#endif /* ENV_IS_EMBEDDED */ + +DECLARE_GLOBAL_DATA_PTR; + +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 + return env_import((char *)env_ptr, 1, H_EXTERNAL); +#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, +}; |