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c706104507
In order to ease the introduction of a new BSEC3 driver for STM32MP25, the BSEC2 driver is reworked. Unused functions are removed. The bsec_base global variable is removed in favor of the macro BSEC_BASE. A rework is also done around function checking the state of BSEC. Change-Id: I1ad76cb67333ab9a8fa1d65db34d74a712bf1190 Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Signed-off-by: Yann Gautier <yann.gautier@st.com>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*
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* Copyright (c) 2017-2024, STMicroelectronics - All Rights Reserved
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef BSEC_H
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#define BSEC_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <lib/utils_def.h>
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/*
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* Return status
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*/
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#define BSEC_OK 0U
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#define BSEC_ERROR 0xFFFFFFFFU
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#define BSEC_DISTURBED 0xFFFFFFFEU
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#define BSEC_INVALID_PARAM 0xFFFFFFFCU
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#define BSEC_PROG_FAIL 0xFFFFFFFBU
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#define BSEC_LOCK_FAIL 0xFFFFFFFAU
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#define BSEC_TIMEOUT 0xFFFFFFF9U
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#define BSEC_RETRY 0xFFFFFFF8U
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#define BSEC_NOT_SUPPORTED 0xFFFFFFF7U
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#define BSEC_WRITE_LOCKED 0xFFFFFFF6U
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/*
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* get BSEC global state: result for bsec_get_secure_state()
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* @state: global state
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* [1:0] BSEC state
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* 00b: Sec Open
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* 01b: Sec Closed
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* 11b: Invalid
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* [8]: Hardware Key set = 1b
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*/
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#define BSEC_STATE_SEC_OPEN U(0x0)
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#define BSEC_STATE_SEC_CLOSED U(0x1)
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#define BSEC_STATE_INVALID U(0x3)
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#define BSEC_STATE_MASK GENMASK_32(1, 0)
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uint32_t bsec_probe(void);
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uint32_t bsec_read_otp(uint32_t *val, uint32_t otp);
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uint32_t bsec_shadow_read_otp(uint32_t *val, uint32_t otp);
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uint32_t bsec_write_otp(uint32_t val, uint32_t otp);
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uint32_t bsec_program_otp(uint32_t val, uint32_t otp);
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uint32_t bsec_read_debug_conf(void);
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void bsec_write_scratch(uint32_t val);
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/* Sticky lock support */
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uint32_t bsec_set_sr_lock(uint32_t otp);
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uint32_t bsec_read_sr_lock(uint32_t otp, bool *value);
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uint32_t bsec_set_sw_lock(uint32_t otp);
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uint32_t bsec_read_sw_lock(uint32_t otp, bool *value);
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uint32_t bsec_set_sp_lock(uint32_t otp);
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uint32_t bsec_read_sp_lock(uint32_t otp, bool *value);
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uint32_t bsec_get_secure_state(void);
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static inline bool bsec_mode_is_closed_device(void)
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{
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return (bsec_get_secure_state() & BSEC_STATE_MASK) == BSEC_STATE_SEC_CLOSED;
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}
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#if defined(IMAGE_BL32)
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uint32_t bsec_permanent_lock_otp(uint32_t otp);
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uint32_t bsec_check_nsec_access_rights(uint32_t otp);
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#endif
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#endif /* BSEC_H */
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