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// SPDX-License-Identifier: BSD-2-Clause
/*
* Copyright (c) 2015, Linaro Limited
*/
#include <inttypes.h>
#include <kernel/tee_common_otp.h>
/*
* Override these in your platform code to really fetch device-unique
* bits from e-fuses or whatever.
*
* The default implementation just sets it to a constant.
*/
__weak TEE_Result tee_otp_get_hw_unique_key(struct tee_hw_unique_key *hwkey)
{
memset(&hwkey->data[0], 0, sizeof(hwkey->data));
return TEE_SUCCESS;
}
__weak int tee_otp_get_die_id(uint8_t *buffer, size_t len)
{
static const char pattern[4] = { 'B', 'E', 'E', 'F' };
size_t i;
for (i = 0; i < len; i++)
buffer[i] = pattern[i % 4];
return 0;
}
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