plat/socionext/uniphier/uniphier_tbbr.c

/*
 * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <platform.h>

extern char uniphier_rotpk_hash[], uniphier_rotpk_hash_end[];

int plat_get_rotpk_info(void *cookie, void **key_ptr, unsigned int *key_len,
			unsigned int *flags)
{
	*key_ptr = uniphier_rotpk_hash;
	*key_len = uniphier_rotpk_hash_end - uniphier_rotpk_hash;
	*flags = ROTPK_IS_HASH;

	return 0;
}

int plat_get_nv_ctr(void *cookie, unsigned int *nv_ctr)
{
	/*
	 * No support for non-volatile counter.  Update the ROT key to protect
	 * the system against rollback.
	 */
	*nv_ctr = 0;

	return 0;
}

int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr)
{
	return 0;
}