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  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #ifndef _SPR_GPT_H
  25 #define _SPR_GPT_H
  26
  27 struct gpt_regs {
  28         u8 reserved[0x80];
  29         u32 control;
  30         u32 status;
  31         u32 compare;
  32         u32 count;
  33         u32 capture_re;
  34         u32 capture_fe;
  35 };
  36
  37 /*
  38  * TIMER_CONTROL register settings
  39  */
  40
  41 #define GPT_PRESCALER_MASK              0x000F
  42 #define GPT_PRESCALER_1                 0x0000
  43 #define GPT_PRESCALER_2                 0x0001
  44 #define GPT_PRESCALER_4                 0x0002
  45 #define GPT_PRESCALER_8                 0x0003
  46 #define GPT_PRESCALER_16                0x0004
  47 #define GPT_PRESCALER_32                0x0005
  48 #define GPT_PRESCALER_64                0x0006
  49 #define GPT_PRESCALER_128               0x0007
  50 #define GPT_PRESCALER_256               0x0008
  51
  52 #define GPT_MODE_SINGLE_SHOT            0x0010
  53 #define GPT_MODE_AUTO_RELOAD            0x0000
  54
  55 #define GPT_ENABLE                      0x0020
  56
  57 #define GPT_CAPT_MODE_MASK              0x00C0
  58 #define GPT_CAPT_MODE_NONE              0x0000
  59 #define GPT_CAPT_MODE_RE                0x0040
  60 #define GPT_CAPT_MODE_FE                0x0080
  61 #define GPT_CAPT_MODE_BOTH              0x00C0
  62
  63 #define GPT_INT_MATCH                   0x0100
  64 #define GPT_INT_FE                      0x0200
  65 #define GPT_INT_RE                      0x0400
  66
  67 /*
  68  * TIMER_STATUS register settings
  69  */
  70
  71 #define GPT_STS_MATCH                   0x0001
  72 #define GPT_STS_FE                      0x0002
  73 #define GPT_STS_RE                      0x0004
  74
  75 /*
  76  * TIMER_COMPARE register settings
  77  */
  78
  79 #define GPT_FREE_RUNNING                0xFFFF
  80
  81 /* Timer, HZ specific defines */
  82 #define CONFIG_SPEAR_HZ                 (1000)
  83 #define CONFIG_SPEAR_HZ_CLOCK           (8300000)
  84
  85 #endif