1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+ 20649cd0dSSimon Glass /* 30649cd0dSSimon Glass * (C) Copyright 2011-2012 Freescale Semiconductor, Inc. 40649cd0dSSimon Glass */ 50649cd0dSSimon Glass 60649cd0dSSimon Glass /* #define DEBUG */ 70649cd0dSSimon Glass 80649cd0dSSimon Glass #include <common.h> 90649cd0dSSimon Glass #include <command.h> 100649cd0dSSimon Glass #include <environment.h> 110649cd0dSSimon Glass #include <linux/stddef.h> 120649cd0dSSimon Glass 130649cd0dSSimon Glass #ifdef ENV_IS_EMBEDDED 140649cd0dSSimon Glass env_t *env_ptr = &environment; 150649cd0dSSimon Glass #else /* ! ENV_IS_EMBEDDED */ 160649cd0dSSimon Glass env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; 170649cd0dSSimon Glass #endif /* ENV_IS_EMBEDDED */ 180649cd0dSSimon Glass 190649cd0dSSimon Glass DECLARE_GLOBAL_DATA_PTR; 200649cd0dSSimon Glass 210649cd0dSSimon Glass #if !defined(CONFIG_ENV_OFFSET) 220649cd0dSSimon Glass #define CONFIG_ENV_OFFSET 0 230649cd0dSSimon Glass #endif 240649cd0dSSimon Glass env_remote_init(void)25e5bce247SSimon Glassstatic int env_remote_init(void) 260649cd0dSSimon Glass { 270649cd0dSSimon Glass if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) { 280649cd0dSSimon Glass gd->env_addr = (ulong)&(env_ptr->data); 29203e94f6SSimon Glass gd->env_valid = ENV_VALID; 300649cd0dSSimon Glass return 0; 310649cd0dSSimon Glass } 320649cd0dSSimon Glass 337938822aSSimon Glass return -ENOENT; 340649cd0dSSimon Glass } 350649cd0dSSimon Glass 360649cd0dSSimon Glass #ifdef CONFIG_CMD_SAVEENV env_remote_save(void)37e5bce247SSimon Glassstatic int env_remote_save(void) 380649cd0dSSimon Glass { 390649cd0dSSimon Glass #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE 400649cd0dSSimon Glass printf("Can not support the 'saveenv' when boot from SRIO or PCIE!\n"); 410649cd0dSSimon Glass return 1; 420649cd0dSSimon Glass #else 430649cd0dSSimon Glass return 0; 440649cd0dSSimon Glass #endif 450649cd0dSSimon Glass } 460649cd0dSSimon Glass #endif /* CONFIG_CMD_SAVEENV */ 470649cd0dSSimon Glass env_remote_load(void)48c5951991SSimon Glassstatic int env_remote_load(void) 490649cd0dSSimon Glass { 500649cd0dSSimon Glass #ifndef ENV_IS_EMBEDDED 512166ebf7SSimon Goldschmidt return env_import((char *)env_ptr, 1); 520649cd0dSSimon Glass #endif 53c5951991SSimon Glass 54c5951991SSimon Glass return 0; 550649cd0dSSimon Glass } 564415f1d1SSimon Glass 574415f1d1SSimon Glass U_BOOT_ENV_LOCATION(remote) = { 584415f1d1SSimon Glass .location = ENVL_REMOTE, 59ac358bebSSimon Glass ENV_NAME("Remote") 60e5bce247SSimon Glass .load = env_remote_load, 61e5bce247SSimon Glass .save = env_save_ptr(env_remote_save), 62e5bce247SSimon Glass .init = env_remote_init, 634415f1d1SSimon Glass }; 64