| Pankaj Gupta | 95c7eee | 2020-12-09 14:02:39 +0530 | [diff] [blame] | 1 | /* |
| Pankaj Gupta | 7834b46 | 2021-03-25 15:15:52 +0530 | [diff] [blame] | 2 | * Copyright 2017-2021 NXP |
| Pankaj Gupta | 95c7eee | 2020-12-09 14:02:39 +0530 | [diff] [blame] | 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 */ |