LXR uboot/common/scp03.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2021, Foundries.IO
   4 *
   5 */
   6
   7#include <common.h>
   8#include <scp03.h>
   9#include <tee.h>
  10#include <tee/optee_ta_scp03.h>
  11
  12static int scp03_enable(bool provision)
  13{
  14        const struct tee_optee_ta_uuid uuid = PTA_SCP03_UUID;
  15        struct tee_open_session_arg session;
  16        struct tee_invoke_arg invoke;
  17        struct tee_param param;
  18        struct udevice *tee = NULL;
  19
  20        tee = tee_find_device(tee, NULL, NULL, NULL);
  21        if (!tee)
  22                return -ENODEV;
  23
  24        memset(&session, 0, sizeof(session));
  25        tee_optee_ta_uuid_to_octets(session.uuid, &uuid);
  26        if (tee_open_session(tee, &session, 0, NULL))
  27                return -ENXIO;
  28
  29        memset(&param, 0, sizeof(param));
  30        param.attr = TEE_PARAM_ATTR_TYPE_VALUE_INPUT;
  31        param.u.value.a = provision;
  32
  33        memset(&invoke, 0, sizeof(invoke));
  34        invoke.func = PTA_CMD_ENABLE_SCP03;
  35        invoke.session = session.session;
  36
  37        if (tee_invoke_func(tee, &invoke, 1, &param))
  38                return -EIO;
  39
  40        tee_close_session(tee, session.session);
  41
  42        return 0;
  43}
  44
  45int tee_enable_scp03(void)
  46{
  47        return scp03_enable(false);
  48}
  49
  50int tee_provision_scp03(void)
  51{
  52        return scp03_enable(true);
  53}
  54