1 /* 2 * Copyright 2017-2020 NXP 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 */ 7 8 #ifndef CAAM_H 9 #define CAAM_H 10 11 #include "caam_io.h" 12 #include "sec_jr_driver.h" 13 14 15 /* Job ring 3 is reserved for usage by sec firmware */ 16 #define DEFAULT_JR 3 17 18 #if defined(CONFIG_CHASSIS_3_2) || defined(CONFIG_CHASSIS_2) 19 #define CAAM_JR0_OFFSET 0x10000 20 #define CAAM_JR1_OFFSET 0x20000 21 #define CAAM_JR2_OFFSET 0x30000 22 #define CAAM_JR3_OFFSET 0x40000 23 #endif 24 25 enum sig_alg { 26 RSA, 27 ECC 28 }; 29 30 /* This function does basic SEC Initialization */ 31 int sec_init(uintptr_t nxp_caam_addr); 32 int config_sec_block(void); 33 uintptr_t get_caam_addr(void); 34 35 /* This function is used to submit jobs to JR */ 36 int run_descriptor_jr(struct job_descriptor *desc); 37 38 /* This function is used to instatiate the HW RNG is already not instantiated */ 39 int hw_rng_instantiate(void); 40 41 /* This function is used to return random bytes of byte_len from HW RNG */ 42 int get_rand_bytes_hw(uint8_t *bytes, int byte_len); 43 44 /* This function is used to set the hw unique key from HW CAAM */ 45 int get_hw_unq_key_blob_hw(uint8_t *hw_key, int size); 46 47 /* This function is used to fetch random number from 48 * CAAM of length either of 4 bytes or 8 bytes depending 49 * rngWidth value. 50 */ 51 unsigned long long get_random(int rngWidth); 52 53 #endif /* CAAM_H */ 54