1 /*
2 * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <plat/arm/common/plat_arm.h>
8
9 /*
10 * Return the ROTPK hash in the following ASN.1 structure in DER format:
11 *
12 * AlgorithmIdentifier ::= SEQUENCE {
13 * algorithm OBJECT IDENTIFIER,
14 * parameters ANY DEFINED BY algorithm OPTIONAL
15 * }
16 *
17 * DigestInfo ::= SEQUENCE {
18 * digestAlgorithm AlgorithmIdentifier,
19 * digest OCTET STRING
20 * }
21 *
22 * The function returns 0 on success. Any other value is treated as error by the
23 * Trusted Board Boot. The function also reports extra information related
24 * to the ROTPK in the flags parameter: ROTPK_IS_HASH, ROTPK_NOT_DEPLOYED.
25 *
26 * Refer to the TF-A porting-guide document for more details.
27 */
plat_get_rotpk_info(void * cookie,void ** key_ptr,unsigned int * key_len,unsigned int * flags)28 int plat_get_rotpk_info(void *cookie, void **key_ptr, unsigned int *key_len,
29 unsigned int *flags)
30 {
31 return arm_get_rotpk_info(cookie, key_ptr, key_len, flags);
32 }
33
34 /*
35 * STUB overriding the non-volatile counter reading.
36 * NV counters are not implemented at this stage of development.
37 * Return: 0 = success
38 */
plat_get_nv_ctr(void * cookie,unsigned int * nv_ctr)39 int plat_get_nv_ctr(void *cookie, unsigned int *nv_ctr)
40 {
41 *nv_ctr = DIPHDA_FW_NVCTR_VAL;
42 return 0;
43 }
44
45 /*
46 * STUB overriding the non-volatile counter updating.
47 * NV counters are not implemented at this stage of development.
48 * Return: 0 = success
49 */
plat_set_nv_ctr(void * cookie,unsigned int nv_ctr)50 int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr)
51 {
52 return 0;
53 }
54