arch/arm/include/asm/arch-spear/spr_gpt.h

   1 /*
   2  * (C) Copyright 2009
   3  * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #ifndef _SPR_GPT_H
   9 #define _SPR_GPT_H
  10
  11 struct gpt_regs {
  12         u8 reserved[0x80];
  13         u32 control;
  14         u32 status;
  15         u32 compare;
  16         u32 count;
  17         u32 capture_re;
  18         u32 capture_fe;
  19 };
  20
  21 /*
  22  * TIMER_CONTROL register settings
  23  */
  24
  25 #define GPT_PRESCALER_MASK              0x000F
  26 #define GPT_PRESCALER_1                 0x0000
  27 #define GPT_PRESCALER_2                 0x0001
  28 #define GPT_PRESCALER_4                 0x0002
  29 #define GPT_PRESCALER_8                 0x0003
  30 #define GPT_PRESCALER_16                0x0004
  31 #define GPT_PRESCALER_32                0x0005
  32 #define GPT_PRESCALER_64                0x0006
  33 #define GPT_PRESCALER_128               0x0007
  34 #define GPT_PRESCALER_256               0x0008
  35
  36 #define GPT_MODE_SINGLE_SHOT            0x0010
  37 #define GPT_MODE_AUTO_RELOAD            0x0000
  38
  39 #define GPT_ENABLE                      0x0020
  40
  41 #define GPT_CAPT_MODE_MASK              0x00C0
  42 #define GPT_CAPT_MODE_NONE              0x0000
  43 #define GPT_CAPT_MODE_RE                0x0040
  44 #define GPT_CAPT_MODE_FE                0x0080
  45 #define GPT_CAPT_MODE_BOTH              0x00C0
  46
  47 #define GPT_INT_MATCH                   0x0100
  48 #define GPT_INT_FE                      0x0200
  49 #define GPT_INT_RE                      0x0400
  50
  51 /*
  52  * TIMER_STATUS register settings
  53  */
  54
  55 #define GPT_STS_MATCH                   0x0001
  56 #define GPT_STS_FE                      0x0002
  57 #define GPT_STS_RE                      0x0004
  58
  59 /*
  60  * TIMER_COMPARE register settings
  61  */
  62
  63 #define GPT_FREE_RUNNING                0xFFFF
  64
  65 /* Timer, HZ specific defines */
  66 #define CONFIG_SPEAR_HZ                 1000
  67 #define CONFIG_SPEAR_HZ_CLOCK           8300000
  68
  69 #endif