arch/m68k/include/asm/coldfire/rng.h

   1 /*
   2  * RNG Memory Map
   3  *
   4  * Copyright (C) 2004-2008 Freescale Semiconductor, Inc.
   5  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #ifndef __RNG_H__
  11 #define __RNG_H__
  12
  13 /* Random Number Generator */
  14 typedef struct rng_ctrl {
  15         u32 cr;                 /* 0x00 Control */
  16         u32 sr;                 /* 0x04 Status */
  17         u32 er;                 /* 0x08 Entropy */
  18         u32 out;                /* 0x0C Output FIFO */
  19 } rng_t;
  20
  21 #define RNG_CR_SLM              (0x00000010)    /* Sleep mode - 5445x */
  22 #define RNG_CR_CI               (0x00000008)    /* Clear interrupt */
  23 #define RNG_CR_IM               (0x00000004)    /* Interrupt mask */
  24 #define RNG_CR_HA               (0x00000002)    /* High assurance */
  25 #define RNG_CR_GO               (0x00000001)    /* Go bit */
  26
  27 #define RNG_SR_OFS(x)           (((x) & 0x000000FF) << 16)
  28 #define RNG_SR_OFS_MASK         (0xFF00FFFF)
  29 #define RNG_SR_OFL(x)           (((x) & 0x000000FF) << 8)
  30 #define RNG_SR_OFL_MASK         (0xFFFF00FF)
  31 #define RNG_SR_EI               (0x00000008)
  32 #define RNG_SR_FUF              (0x00000004)
  33 #define RNG_SR_LRS              (0x00000002)
  34 #define RNG_SR_SV               (0x00000001)
  35
  36 #endif                          /* __RNG_H__ */