arch/m68k/include/asm/intersil.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _SUN3_INTERSIL_H
   3 #define _SUN3_INTERSIL_H
   4 /* bits 0 and 1 */
   5 #define INTERSIL_FREQ_32K        0x00
   6 #define INTERSIL_FREQ_1M         0x01
   7 #define INTERSIL_FREQ_2M         0x02
   8 #define INTERSIL_FREQ_4M         0x03
   9
  10 /* bit 2 */
  11 #define INTERSIL_12H_MODE   0x00
  12 #define INTERSIL_24H_MODE   0x04
  13
  14 /* bit 3 */
  15 #define INTERSIL_STOP            0x00
  16 #define INTERSIL_RUN             0x08
  17
  18 /* bit 4 */
  19 #define INTERSIL_INT_ENABLE     0x10
  20 #define INTERSIL_INT_DISABLE    0x00
  21
  22 /* bit 5 */
  23 #define INTERSIL_MODE_NORMAL     0x00
  24 #define INTERSIL_MODE_TEST       0x20
  25
  26 #define INTERSIL_HZ_100_MASK     0x02
  27
  28 struct intersil_dt {
  29         unsigned char   csec;
  30         unsigned char   hour;
  31         unsigned char   minute;
  32         unsigned char   second;
  33         unsigned char   month;
  34         unsigned char   day;
  35         unsigned char   year;
  36         unsigned char   weekday;
  37 };
  38
  39 struct intersil_7170 {
  40         struct intersil_dt counter;
  41         struct intersil_dt alarm;
  42         unsigned char   int_reg;
  43         unsigned char   cmd_reg;
  44 };
  45
  46 extern volatile char* clock_va;
  47 #define intersil_clock ((volatile struct intersil_7170 *) clock_va)
  48 #define intersil_clear() (void)intersil_clock->int_reg
  49 #endif