board/gdsys/a38x/hre.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * (C) Copyright 2013
   4  * Reinhard Pfau, Guntermann & Drunck GmbH, reinhard.pfau@gdsys.cc
   5  */
   6
   7 #ifndef __HRE_H
   8 #define __HRE_H
   9
  10 struct key_program {
  11         uint32_t magic;
  12         uint32_t code_crc;
  13         uint32_t code_size;
  14         uint8_t code[];
  15 };
  16
  17 struct h_reg {
  18         bool valid;
  19         uint8_t digest[20];
  20 };
  21
  22 /* CCDM specific contants */
  23 enum {
  24         /* NV indices */
  25         NV_COMMON_DATA_INDEX    = 0x40000001,
  26         /* magics for key blob chains */
  27         MAGIC_KEY_PROGRAM       = 0x68726500,
  28         MAGIC_HMAC              = 0x68616300,
  29         MAGIC_END_OF_CHAIN      = 0x00000000,
  30         /* sizes */
  31         NV_COMMON_DATA_MIN_SIZE = 3 * sizeof(uint64_t) + 2 * sizeof(uint16_t),
  32 };
  33
  34 int hre_verify_program(struct key_program *prg);
  35 int hre_run_program(const uint8_t *code, size_t code_size);
  36
  37 #endif /* __HRE_H */