include/linux/rtc-v3020.h

   1 /*
   2  * v3020.h - Registers definition and platform data structure for the v3020 RTC.
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * Copyright (C) 2006, 8D Technologies inc.
   9  */
  10 #ifndef __LINUX_V3020_H
  11 #define __LINUX_V3020_H
  12
  13 /* The v3020 has only one data pin but which one
  14  * is used depends on the board. */
  15 struct v3020_platform_data {
  16         int leftshift; /* (1<<(leftshift)) & readl() */
  17
  18         int use_gpio:1;
  19         unsigned int gpio_cs;
  20         unsigned int gpio_wr;
  21         unsigned int gpio_rd;
  22         unsigned int gpio_io;
  23 };
  24
  25 #define V3020_STATUS_0  0x00
  26 #define V3020_STATUS_1  0x01
  27 #define V3020_SECONDS   0x02
  28 #define V3020_MINUTES   0x03
  29 #define V3020_HOURS             0x04
  30 #define V3020_MONTH_DAY 0x05
  31 #define V3020_MONTH             0x06
  32 #define V3020_YEAR              0x07
  33 #define V3020_WEEK_DAY  0x08
  34 #define V3020_WEEK              0x09
  35
  36 #define V3020_IS_COMMAND(val) ((val)>=0x0E)
  37
  38 #define V3020_CMD_RAM2CLOCK     0x0E
  39 #define V3020_CMD_CLOCK2RAM     0x0F
  40
  41 #endif /* __LINUX_V3020_H */