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[mirror_ubuntu-artful-kernel.git] / 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 */