arch/arm/include/asm/arch-bcm63178/rng.h

   1 /* SPDX-License-Identifier: GPL-2.0+
   2  *
   3  *  Copyright 2019 Broadcom Ltd.
   4  */
   5
   6 #ifndef _63178_RNG_H
   7 #define _63178_RNG_H
   8
   9 #define RNG_BASE        0xff800b80
  10
  11 typedef struct Rng {
  12         uint32_t ctrl0;                 /* 0x00 */
  13         uint32_t rngSoftReset;          /* 0x04 */
  14         uint32_t rbgSoftReset;          /* 0x08 */
  15         uint32_t totalBitCnt;           /* 0x0c */
  16         uint32_t totalBitCntThreshold;  /* 0x10 */
  17         uint32_t revId;                 /* 0x14 */
  18         uint32_t intStatus;             /* 0x18 */
  19 #define RNG_INT_STATUS_NIST_FAIL        (0x1<<5)
  20 #define RNG_INT_STATUS_FIFO_FULL        (0x1<<2)
  21         uint32_t intEn;                 /* 0x1c */
  22         uint32_t rngFifoData;           /* 0x20 */
  23         uint32_t fifoCnt;               /* 0x24 */
  24 #define RNG_PERM_ALLOW_SECURE_ACCESS    0xCC
  25 #define RNG_PERM_ALLOW_NONSEC_ACCESS    0x33
  26         uint32_t perm;                  /* 0x28 */
  27 } Rng;
  28
  29 #define RNG_PERM_SHIFT          0x0
  30 #define RNG_PERM_BLK_SHIFT      0x4
  31
  32 #define RNG_PERM_SEC_W          0x8
  33 #define RNG_PERM_SEC_R          0x4
  34 #define RNG_PERM_NSEC_W         0x2
  35 #define RNG_PERM_NSEC_R         0x1
  36
  37 #define RNG_PERM_BLK_SEC_W      0x8
  38 #define RNG_PERM_BLK_SEC_R      0x4
  39 #define RNG_PERM_BLK_NSEC_W     0x2
  40 #define RNG_PERM_BLK_NSEC_R     0x1
  41
  42 #define RNG_PERM_NSEC_ENABLE   (((RNG_PERM_BLK_NSEC_R|RNG_PERM_BLK_NSEC_W)<<RNG_PERM_BLK_SHIFT)|  (RNG_PERM_SEC_W|RNG_PERM_SEC_R)<<RNG_PERM_SHIFT)
  43 #define RNG_PERM_SEC_ENABLE   (((RNG_PERM_BLK_SEC_R|RNG_PERM_BLK_SEC_W)<<RNG_PERM_BLK_SHIFT)|  (RNG_PERM_SEC_W|RNG_PERM_SEC_R)<<RNG_PERM_SHIFT)
  44 #define RNG_PERM_DISABLE_ALL    0x0
  45
  46 #define RNG ((volatile Rng * const) RNG_BASE)
  47
  48 #endif