1d8e919c7SMasahiro Yamada /* 2d8e919c7SMasahiro Yamada * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. 3d8e919c7SMasahiro Yamada * 4d8e919c7SMasahiro Yamada * SPDX-License-Identifier: BSD-3-Clause 5d8e919c7SMasahiro Yamada */ 6d8e919c7SMasahiro Yamada 7d8e919c7SMasahiro Yamada #include <platform.h> 8d8e919c7SMasahiro Yamada 9*63634800SMasahiro Yamada extern char uniphier_rotpk_hash[], uniphier_rotpk_hash_end[]; 10*63634800SMasahiro Yamada 11d8e919c7SMasahiro Yamada int plat_get_rotpk_info(void *cookie, void **key_ptr, unsigned int *key_len, 12d8e919c7SMasahiro Yamada unsigned int *flags) 13d8e919c7SMasahiro Yamada { 14*63634800SMasahiro Yamada *key_ptr = uniphier_rotpk_hash; 15*63634800SMasahiro Yamada *key_len = uniphier_rotpk_hash_end - uniphier_rotpk_hash; 16*63634800SMasahiro Yamada *flags = ROTPK_IS_HASH; 17d8e919c7SMasahiro Yamada 18d8e919c7SMasahiro Yamada return 0; 19d8e919c7SMasahiro Yamada } 20d8e919c7SMasahiro Yamada 21d8e919c7SMasahiro Yamada int plat_get_nv_ctr(void *cookie, unsigned int *nv_ctr) 22d8e919c7SMasahiro Yamada { 23d8e919c7SMasahiro Yamada /* 24d8e919c7SMasahiro Yamada * No support for non-volatile counter. Update the ROT key to protect 25d8e919c7SMasahiro Yamada * the system against rollback. 26d8e919c7SMasahiro Yamada */ 27d8e919c7SMasahiro Yamada *nv_ctr = 0; 28d8e919c7SMasahiro Yamada 29d8e919c7SMasahiro Yamada return 0; 30d8e919c7SMasahiro Yamada } 31d8e919c7SMasahiro Yamada 32d8e919c7SMasahiro Yamada int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr) 33d8e919c7SMasahiro Yamada { 34d8e919c7SMasahiro Yamada return 0; 35d8e919c7SMasahiro Yamada } 36