[mirror_ubuntu-bionic-kernel.git] / arch / mips / include / asm / mach-bcm47xx / nvram.h

/*
 *  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
Commit	Line	Data
121915c4 WB	1	/*
	2	* Copyright (C) 2005, Broadcom Corporation
	3	* Copyright (C) 2006, Felix Fietkau <nbd@openwrt.org>
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of the GNU General Public License as published by the
	7	* Free Software Foundation; either version 2 of the License, or (at your
	8	* option) any later version.
	9	*/
	10
	11	#ifndef __NVRAM_H
	12	#define __NVRAM_H
	13
	14	#include <linux/types.h>
	15
	16	struct nvram_header {
	17	u32 magic;
	18	u32 len;
	19	u32 crc_ver_init; /* 0:7 crc, 8:15 ver, 16:31 sdram_init */
	20	u32 config_refresh; /* 0:15 sdram_config, 16:31 sdram_refresh */
	21	u32 config_ncdl; /* ncdl values for memc */
	22	};
	23
	24	#define NVRAM_HEADER 0x48534C46 /* 'FLSH' */
	25	#define NVRAM_VERSION 1
	26	#define NVRAM_HEADER_SIZE 20
	27	#define NVRAM_SPACE 0x8000
	28
	29	#define FLASH_MIN 0x00020000 /* Minimum flash size */
	30
	31	#define NVRAM_MAX_VALUE_LEN 255
	32	#define NVRAM_MAX_PARAM_LEN 64
	33
	34	extern int nvram_getenv(char name, char val, size_t val_len);
	35
	36	#endif