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/* SPDX-License-Identifier: GPL-2.0+ */
/*
 *  (C) Copyright 2010,2011
 *  NVIDIA Corporation <www.nvidia.com>
 */

#ifndef _FUSE_H_
#define _FUSE_H_

/* FUSE registers */
struct fuse_regs {
	u32 reserved0[64];		/* 0x00 - 0xFC: */
	u32 production_mode;		/* 0x100: FUSE_PRODUCTION_MODE */
	u32 reserved1[3];		/* 0x104 - 0x10c: */
	u32 sku_info;			/* 0x110 */
	u32 reserved2[13];		/* 0x114 - 0x144: */
	u32 fa;				/* 0x148: FUSE_FA */
	u32 reserved3[21];		/* 0x14C - 0x19C: */
	u32 security_mode;		/* 0x1A0: FUSE_SECURITY_MODE */
	u32 sbk[4];			/* 0x1A4 - 0x1B4 */
};

/* Defines the supported operating modes */
enum fuse_operating_mode {
	MODE_UNDEFINED = 0,
	MODE_PRODUCTION = 3,
	MODE_ODM_PRODUCTION_SECURE = 4,
	MODE_ODM_PRODUCTION_OPEN = 5,
};

/**
 * Initializes fuse hardware
 */
void tegra_fuse_init(void);

/**
 * Calculate SoC UID
 *
 * Return: uid if ok, 0 on error
 */
unsigned long long tegra_chip_uid(void);

/**
 * Gives the current operating mode from fuses
 *
 * @return current operating mode
 */
enum fuse_operating_mode tegra_fuse_get_operation_mode(void);

#endif	/* ifndef _FUSE_H_ */