| /* |
| * Copyright (C) 2005, Broadcom Corporation |
| * Copyright (C) 2006, Felix Fietkau <nbd@openwrt.org> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| */ |
| |
| #ifndef __NVRAM_H |
| #define __NVRAM_H |
| |
| #include <linux/types.h> |
| |
| struct nvram_header { |
| u32 magic; |
| u32 len; |
| u32 crc_ver_init; /* 0:7 crc, 8:15 ver, 16:31 sdram_init */ |
| u32 config_refresh; /* 0:15 sdram_config, 16:31 sdram_refresh */ |
| u32 config_ncdl; /* ncdl values for memc */ |
| }; |
| |
| #define NVRAM_HEADER 0x48534C46 /* 'FLSH' */ |
| #define NVRAM_VERSION 1 |
| #define NVRAM_HEADER_SIZE 20 |
| #define NVRAM_SPACE 0x8000 |
| |
| #define FLASH_MIN 0x00020000 /* Minimum flash size */ |
| |
| #define NVRAM_MAX_VALUE_LEN 255 |
| #define NVRAM_MAX_PARAM_LEN 64 |
| |
| extern int nvram_getenv(char *name, char *val, size_t val_len); |
| |
| #endif |
