1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright 2017-2022 NXP 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu * 6*91f16700Schasinglulu */ 7*91f16700Schasinglulu 8*91f16700Schasinglulu #ifndef CAAM_H 9*91f16700Schasinglulu #define CAAM_H 10*91f16700Schasinglulu 11*91f16700Schasinglulu #include "caam_io.h" 12*91f16700Schasinglulu #include "sec_jr_driver.h" 13*91f16700Schasinglulu 14*91f16700Schasinglulu 15*91f16700Schasinglulu /* Job ring 3 is reserved for usage by sec firmware */ 16*91f16700Schasinglulu #define DEFAULT_JR 3 17*91f16700Schasinglulu 18*91f16700Schasinglulu #if defined(CONFIG_CHASSIS_3_2) || defined(CONFIG_CHASSIS_3) || defined(CONFIG_CHASSIS_2) 19*91f16700Schasinglulu #define CAAM_JR0_OFFSET 0x10000 20*91f16700Schasinglulu #define CAAM_JR1_OFFSET 0x20000 21*91f16700Schasinglulu #define CAAM_JR2_OFFSET 0x30000 22*91f16700Schasinglulu #define CAAM_JR3_OFFSET 0x40000 23*91f16700Schasinglulu #endif 24*91f16700Schasinglulu 25*91f16700Schasinglulu enum sig_alg { 26*91f16700Schasinglulu RSA, 27*91f16700Schasinglulu ECC 28*91f16700Schasinglulu }; 29*91f16700Schasinglulu 30*91f16700Schasinglulu /* This function does basic SEC Initialization */ 31*91f16700Schasinglulu int sec_init(uintptr_t nxp_caam_addr); 32*91f16700Schasinglulu int config_sec_block(void); 33*91f16700Schasinglulu uintptr_t get_caam_addr(void); 34*91f16700Schasinglulu 35*91f16700Schasinglulu /* This function is used to submit jobs to JR */ 36*91f16700Schasinglulu int run_descriptor_jr(struct job_descriptor *desc); 37*91f16700Schasinglulu 38*91f16700Schasinglulu /* This function is used to instatiate the HW RNG is already not instantiated */ 39*91f16700Schasinglulu int hw_rng_instantiate(void); 40*91f16700Schasinglulu 41*91f16700Schasinglulu /* This function is used to return random bytes of byte_len from HW RNG */ 42*91f16700Schasinglulu int get_rand_bytes_hw(uint8_t *bytes, int byte_len); 43*91f16700Schasinglulu 44*91f16700Schasinglulu /* This function is used to set the hw unique key from HW CAAM */ 45*91f16700Schasinglulu int get_hw_unq_key_blob_hw(uint8_t *hw_key, int size); 46*91f16700Schasinglulu 47*91f16700Schasinglulu /* This function is used to fetch random number from 48*91f16700Schasinglulu * CAAM of length either of 4 bytes or 8 bytes depending 49*91f16700Schasinglulu * rngWidth value. 50*91f16700Schasinglulu */ 51*91f16700Schasinglulu unsigned long long get_random(int rngWidth); 52*91f16700Schasinglulu 53*91f16700Schasinglulu #endif /* CAAM_H */ 54