1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * Texas Instruments, <www.ti.com>
6 * Andreas Dannenberg <dannenberg@ti.com>
8 #ifndef _OMAP_SEC_COMMON_H_
9 #define _OMAP_SEC_COMMON_H_
14 * Invoke secure ROM API on high-security (HS) device variants. It formats
15 * the variable argument list into the format expected by the ROM code before
16 * triggering the actual low-level smc entry.
18 u32 secure_rom_call(u32 service, u32 proc_id, u32 flag, ...);
21 * Invoke a secure ROM API on high-secure (HS) device variants that can be used
22 * to verify a secure blob by authenticating and optionally decrypting it. The
23 * exact operation performed depends on how the certificate that was embedded
24 * into the blob during the signing/encryption step when the secure blob was
27 int secure_boot_verify_image(void **p_image, size_t *p_size);
30 * Return the start of secure reserved RAM, if a default start address has
31 * not been configured then return a region at the end of the external DRAM.
33 u32 get_sec_mem_start(void);
36 * Invoke a secure HAL API that allows configuration of the external memory
39 int secure_emif_firewall_setup(uint8_t region_num, uint32_t start_addr,
40 uint32_t size, uint32_t access_perm,
41 uint32_t initiator_perm);
44 * Invoke a secure HAL API on high-secure (HS) device variants that reserves a
45 * region of external memory for secure world use, and protects it using memory
46 * firewalls that prevent public world access. This API is intended to setaside
47 * memory that will be used for a secure world OS/TEE.
49 int secure_emif_reserve(void);
52 * Invoke a secure HAL API to lock the external memory firewall configurations.
53 * After this API is called, none of the HAL APIs for configuring the that
54 * firewall will be usable (calls to those APIs will return failure and have
57 int secure_emif_firewall_lock(void);
60 * Invoke a secure HAL API to authenticate and install a Trusted Execution
61 * Environment (TEE) image.
63 int secure_tee_install(u32 tee_image);
65 #endif /* _OMAP_SEC_COMMON_H_ */