arch/arm/include/asm/arch-txlx/efuse.h

/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
/*
 * arch/arm/include/asm/arch-txlx/efuse.h
 *
 * Copyright (C) 2020 Amlogic, Inc. All rights reserved.
 *
 */

#ifndef __EFUSE_H
#define __EFUSE_H

#include <config.h>
#include <common.h>

/* efuse HAL_API arg */
struct efuse_hal_api_arg {
	unsigned int cmd;		/* R/W */
	unsigned int offset;
	unsigned int size;
	unsigned long buffer_phy;
	unsigned long retcnt_phy;
};


#define EFUSE_BYTES				512   /* (EFUSE_BITS/8) */

#define EFUSE_HAL_API_READ	0
#define EFUSE_HAL_API_WRITE 1
#define EFUSE_HAL_API_WRITE_PATTERN 2
#define EFUSE_HAL_API_USER_MAX 3
#define CONFIG_EFUSE_OBJ_API 1

#define EFUSE_USER_MASK            (0x1 << 16)
#define EFUSE_THERMAL_MASK         (0x1 << 17)
#define EFUSE_THERMAL_VERFLAG_MASK (0x1 << 18)
#define EFUSE_ENCRYPT_MASK         (0x1 << 19)

//#define ASSIST_HW_REV                              0x1f53

typedef enum efuse_obj_status_s {
	EFUSE_OBJ_SUCCESS		= 0,

	EFUSE_OBJ_ERR_INVALID_DATA	= 100,
	EFUSE_OBJ_ERR_NOT_FOUND,
	EFUSE_OBJ_ERR_DEPENDENCY,
	EFUSE_OBJ_ERR_SIZE,
	EFUSE_OBJ_ERR_NOT_SUPPORT,

	EFUSE_OBJ_ERR_ACCESS		= 200,
	EFUSE_OBJ_ERR_WRITE_PROTECTED = 201,

	EFUSE_OBJ_ERR_UNKNOWN		= 300,
	EFUSE_OBJ_ERR_INTERNAL,
} efuse_obj_status_e;

typedef enum efuse_obj_type_s {
	/* Built-in object type */
	EFUSE_OBJ_LICENSE_DISABLE_JTAG_ALL	=0,
	EFUSE_OBJ_LICENSE_ENABLE_USB_BOOT_PASSWORD,
	EFUSE_OBJ_LICENSE_DISABLE_USB_BOOT,
} efuse_obj_type_e;

int efuse_read_usr(char *buf, size_t count, loff_t *ppos);
int efuse_write_usr(char *buf, size_t count, loff_t *ppos);
uint32_t efuse_get_max(void);
ssize_t efuse_read(char *buf, size_t count, loff_t *ppos);
ssize_t efuse_write(const char *buf, size_t count, loff_t *ppos);

int32_t meson_trustzone_efuse(struct efuse_hal_api_arg *arg);
int32_t meson_trustzone_efuse_get_max(struct efuse_hal_api_arg *arg);

#ifdef CONFIG_EFUSE_OBJ_API
uint32_t meson_efuse_obj_write(
	uint32_t obj_id,
	uint8_t *buff,
	uint32_t size);

uint32_t meson_efuse_obj_read(
	uint32_t obj_id,
	uint8_t *buff,
	uint32_t *size);

uint32_t efuse_obj_write(uint32_t obj_id, uint8_t *buff, uint32_t size);
uint32_t efuse_obj_read(uint32_t obj_id, uint8_t *buff, uint32_t *size);
#endif /* CONFIG_EFUSE_OBJ_API */
#endif