include/asm-mn10300/rtc-regs.h

   1 /* MN10300 on-chip Real-Time Clock registers
   2  *
   3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11 #ifndef _ASM_RTC_REGS_H
  12 #define _ASM_RTC_REGS_H
  13
  14 #include <asm/intctl-regs.h>
  15
  16 #ifdef __KERNEL__
  17
  18 #define RTSCR                   __SYSREG(0xd8600000, u8) /* RTC seconds count reg */
  19 #define RTSAR                   __SYSREG(0xd8600001, u8) /* RTC seconds alarm reg */
  20 #define RTMCR                   __SYSREG(0xd8600002, u8) /* RTC minutes count reg */
  21 #define RTMAR                   __SYSREG(0xd8600003, u8) /* RTC minutes alarm reg */
  22 #define RTHCR                   __SYSREG(0xd8600004, u8) /* RTC hours count reg */
  23 #define RTHAR                   __SYSREG(0xd8600005, u8) /* RTC hours alarm reg */
  24 #define RTDWCR                  __SYSREG(0xd8600006, u8) /* RTC day of the week count reg */
  25 #define RTDMCR                  __SYSREG(0xd8600007, u8) /* RTC days count reg */
  26 #define RTMTCR                  __SYSREG(0xd8600008, u8) /* RTC months count reg */
  27 #define RTYCR                   __SYSREG(0xd8600009, u8) /* RTC years count reg */
  28
  29 #define RTCRA                   __SYSREG(0xd860000a, u8)/* RTC control reg A */
  30 #define RTCRA_RS                0x0f    /* periodic timer interrupt cycle setting */
  31 #define RTCRA_RS_NONE           0x00    /* - off */
  32 #define RTCRA_RS_3_90625ms      0x01    /* - 3.90625ms  (1/256s) */
  33 #define RTCRA_RS_7_8125ms       0x02    /* - 7.8125ms   (1/128s) */
  34 #define RTCRA_RS_122_070us      0x03    /* - 122.070us  (1/8192s) */
  35 #define RTCRA_RS_244_141us      0x04    /* - 244.141us  (1/4096s) */
  36 #define RTCRA_RS_488_281us      0x05    /* - 488.281us  (1/2048s) */
  37 #define RTCRA_RS_976_5625us     0x06    /* - 976.5625us (1/1024s) */
  38 #define RTCRA_RS_1_953125ms     0x07    /* - 1.953125ms (1/512s) */
  39 #define RTCRA_RS_3_90624ms      0x08    /* - 3.90624ms  (1/256s) */
  40 #define RTCRA_RS_7_8125ms_b     0x09    /* - 7.8125ms   (1/128s) */
  41 #define RTCRA_RS_15_625ms       0x0a    /* - 15.625ms   (1/64s) */
  42 #define RTCRA_RS_31_25ms        0x0b    /* - 31.25ms    (1/32s) */
  43 #define RTCRA_RS_62_5ms         0x0c    /* - 62.5ms     (1/16s) */
  44 #define RTCRA_RS_125ms          0x0d    /* - 125ms      (1/8s) */
  45 #define RTCRA_RS_250ms          0x0e    /* - 250ms      (1/4s) */
  46 #define RTCRA_RS_500ms          0x0f    /* - 500ms      (1/2s) */
  47 #define RTCRA_DVR               0x40    /* divider reset */
  48 #define RTCRA_UIP               0x80    /* clock update flag */
  49
  50 #define RTCRB                   __SYSREG(0xd860000b, u8) /* RTC control reg B */
  51 #define RTCRB_DSE               0x01    /* daylight savings time enable */
  52 #define RTCRB_TM                0x02    /* time format */
  53 #define RTCRB_TM_12HR           0x00    /* - 12 hour format */
  54 #define RTCRB_TM_24HR           0x02    /* - 24 hour format */
  55 #define RTCRB_DM                0x04    /* numeric value format */
  56 #define RTCRB_DM_BCD            0x00    /* - BCD */
  57 #define RTCRB_DM_BINARY         0x04    /* - binary */
  58 #define RTCRB_UIE               0x10    /* update interrupt disable */
  59 #define RTCRB_AIE               0x20    /* alarm interrupt disable */
  60 #define RTCRB_PIE               0x40    /* periodic interrupt disable */
  61 #define RTCRB_SET               0x80    /* clock update enable */
  62
  63 #define RTSRC                   __SYSREG(0xd860000c, u8) /* RTC status reg C */
  64 #define RTSRC_UF                0x10    /* update end interrupt flag */
  65 #define RTSRC_AF                0x20    /* alarm interrupt flag */
  66 #define RTSRC_PF                0x40    /* periodic interrupt flag */
  67 #define RTSRC_IRQF              0x80    /* interrupt flag */
  68
  69 #define RTIRQ                   32
  70 #define RTICR                   GxICR(RTIRQ)
  71
  72 /*
  73  * MC146818 RTC compatibility defs for the MN10300 on-chip RTC
  74  */
  75 #define RTC_PORT(x)             0xd8600000
  76 #define RTC_ALWAYS_BCD          1       /* RTC operates in binary mode */
  77
  78 #define CMOS_READ(addr)         __SYSREG(0xd8600000 + (addr), u8)
  79 #define CMOS_WRITE(val, addr)   \
  80         do { __SYSREG(0xd8600000 + (addr), u8) = val; } while (0)
  81
  82 #define RTC_IRQ                 RTIRQ
  83
  84 #endif /* __KERNEL__ */
  85
  86 #endif /* _ASM_RTC_REGS_H */