1 /* 2 * (C) Copyright 2011-2012 Freescale Semiconductor, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 /* #define DEBUG */ 8 9 #include <common.h> 10 #include <command.h> 11 #include <environment.h> 12 #include <linux/stddef.h> 13 14 char *env_name_spec = "Remote"; 15 16 #ifdef ENV_IS_EMBEDDED 17 env_t *env_ptr = &environment; 18 #else /* ! ENV_IS_EMBEDDED */ 19 env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; 20 #endif /* ENV_IS_EMBEDDED */ 21 22 DECLARE_GLOBAL_DATA_PTR; 23 24 #if !defined(CONFIG_ENV_OFFSET) 25 #define CONFIG_ENV_OFFSET 0 26 #endif 27 28 int env_init(void) 29 { 30 if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) { 31 gd->env_addr = (ulong)&(env_ptr->data); 32 gd->env_valid = ENV_VALID; 33 return 0; 34 } 35 36 gd->env_addr = (ulong)default_environment; 37 gd->env_valid = 0; 38 return 0; 39 } 40 41 #ifdef CONFIG_CMD_SAVEENV 42 int saveenv(void) 43 { 44 #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE 45 printf("Can not support the 'saveenv' when boot from SRIO or PCIE!\n"); 46 return 1; 47 #else 48 return 0; 49 #endif 50 } 51 #endif /* CONFIG_CMD_SAVEENV */ 52 53 void env_relocate_spec(void) 54 { 55 #ifndef ENV_IS_EMBEDDED 56 env_import((char *)env_ptr, 1); 57 #endif 58 } 59