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/* SPDX-License-Identifier: BSD-3-Clause */
/*
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2018-2019, STMicroelectronics
*/
#ifndef __STM32_ETZPC_H__
#define __STM32_ETZPC_H__
#include <util.h>
#include <types_ext.h>
enum etzpc_decprot_attributes {
ETZPC_DECPROT_S_RW = 0,
ETZPC_DECPROT_NS_R_S_W = 1,
ETZPC_DECPROT_MCU_ISOLATION = 2,
ETZPC_DECPROT_NS_RW = 3,
ETZPC_DECPROT_MAX = 4,
};
#define ETZPC_TZMA_ALL_SECURE GENMASK_32(9, 0)
#define ETZPC_TZMA_ALL_NO_SECURE 0x0
/*
* Load a DECPROT configuration
* @decprot_id: ID that is the index of the DECPROT in the ETZPC interface
* @decprot_attr: Restriction access attributes
*/
void etzpc_configure_decprot(uint32_t decprot_id,
enum etzpc_decprot_attributes decprot_attr);
/*
* Get the DECPROT attribute
* @decprot_id: ID that is the index of the DECPROT in the ETZPC interface
* Return attribute of this DECPROT
*/
enum etzpc_decprot_attributes etzpc_get_decprot(uint32_t decprot_id);
/*
* Lock access to the DECPROT attributes
* @decprot_id: ID that is the index of the DECPROT in the ETZPC interface
*/
void etzpc_lock_decprot(uint32_t decprot_id);
/*
* Return the lock status of the target DECPROT
* @decprot_id: ID that is the index of the DECPROT in the ETZPC interface
*/
bool etzpc_get_lock_decprot(uint32_t decprot_id);
/*
* Configure the target TZMA read only size
* @tzma_id: ID that is the index of the TZMA in the ETZPC interface
* @tzma_value: Read-only size
*/
void etzpc_configure_tzma(uint32_t tzma_id, uint16_t tzma_value);
/*
* Get the target TZMA read only size
* @tzma_id: ID that is the index of the TZMA in the ETZPC interface
* Return the size of read-only area
*/
uint16_t etzpc_get_tzma(uint32_t tzma_id);
/*
* Lock the target TZMA
* @tzma_id: ID that is the index of the TZMA in the ETZPC interface
*/
void etzpc_lock_tzma(uint32_t tzma_id);
/*
* Return the lock status of the target TZMA
* @tzma_id: ID that is the index of the TZMA in the ETZPC interface
* Return true if TZMA is locked, false otherwise
*/
bool etzpc_get_lock_tzma(uint32_t tzma_id);
/*
* Init the ETZPC device, nedded when not using the device tree
* @base: ETZPC interface registers physcal base address
*/
#ifdef CFG_STM32_ETZPC
void stm32_etzpc_init(paddr_t base);
#else
static inline void stm32_etzpc_init(paddr_t __unused base) {}
#endif
#endif /*__STM32_ETZPC_H__*/
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