git.sur5r.net Git - u-boot/blob - arch/arm/mach-mvebu/include/mach/efuse.h

   1 /*
   2  * Copyright (C) 2015 Reinhard Pfau <reinhard.pfau@gdsys.cc>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #ifndef _MVEBU_EFUSE_H
   8 #define _MVEBU_EFUSE_H
   9
  10 #include <common.h>
  11
  12 struct efuse_val {
  13         union {
  14                 struct {
  15                         u8 d[8];
  16                 } bytes;
  17                 struct {
  18                         u16 d[4];
  19                 } words;
  20                 struct {
  21                         u32 d[2];
  22                 } dwords;
  23         };
  24         u32 lock;
  25 };
  26
  27 #if defined(CONFIG_ARMADA_38X)
  28
  29 enum efuse_line {
  30         EFUSE_LINE_SECURE_BOOT = 24,
  31         EFUSE_LINE_PUBKEY_DIGEST_0 = 26,
  32         EFUSE_LINE_PUBKEY_DIGEST_1 = 27,
  33         EFUSE_LINE_PUBKEY_DIGEST_2 = 28,
  34         EFUSE_LINE_PUBKEY_DIGEST_3 = 29,
  35         EFUSE_LINE_PUBKEY_DIGEST_4 = 30,
  36         EFUSE_LINE_CSK_0_VALID = 31,
  37         EFUSE_LINE_CSK_1_VALID = 32,
  38         EFUSE_LINE_CSK_2_VALID = 33,
  39         EFUSE_LINE_CSK_3_VALID = 34,
  40         EFUSE_LINE_CSK_4_VALID = 35,
  41         EFUSE_LINE_CSK_5_VALID = 36,
  42         EFUSE_LINE_CSK_6_VALID = 37,
  43         EFUSE_LINE_CSK_7_VALID = 38,
  44         EFUSE_LINE_CSK_8_VALID = 39,
  45         EFUSE_LINE_CSK_9_VALID = 40,
  46         EFUSE_LINE_CSK_10_VALID = 41,
  47         EFUSE_LINE_CSK_11_VALID = 42,
  48         EFUSE_LINE_CSK_12_VALID = 43,
  49         EFUSE_LINE_CSK_13_VALID = 44,
  50         EFUSE_LINE_CSK_14_VALID = 45,
  51         EFUSE_LINE_CSK_15_VALID = 46,
  52         EFUSE_LINE_FLASH_ID = 47,
  53         EFUSE_LINE_BOX_ID = 48,
  54
  55         EFUSE_LINE_MIN = 0,
  56         EFUSE_LINE_MAX = 63,
  57 };
  58
  59 #endif
  60
  61 int mvebu_efuse_init_hw(void);
  62
  63 int mvebu_read_efuse(int nr, struct efuse_val *val);
  64
  65 int mvebu_write_efuse(int nr, struct efuse_val *val);
  66
  67 int mvebu_lock_efuse(int nr);
  68
  69 #endif