blob: 55617a724fef0a5c63736350e5ef975b2924d16a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _I2C_RV3028C7_H_
#define _I2C_RV3028C7_H_
/* Register layout */
#define SECOND_REG 0x00
#define MINUTE_REG 0x01
#define HOUR_REG 0x02
#define WEEK_REG 0x03
#define DAY_REG 0x04
#define MONTH_REG 0x05
#define YEAR_REG 0x06
#define STATUS_REG 0x0e
#define PORF_BIT (1 << 0)
#define EE_BUSY_BIT (1 << 7)
#define CTRL1_REG 0x0f
#define EERD_BIT (1 << 3)
#define CTRL2_REG 0x10
#define HOUR_12_24_BIT (1 << 1)
/* Registers for the internal EEPROM */
#define EEP_ADR_REG 0x25
#define EEP_DATA_REG 0x26
#define EEP_CMD_REG 0x27
#define EEP_CMD_PREFIX 0x00
#define EEP_CMD_UPDATE 0x11
#define EEP_BACKUP_REG 0x37
#define FEDE_BIT (1 << 4)
#define BSM_BIT 2
#define BSM_MASK (3 << BSM_BIT)
#define TCR_BIT 0
#define TCR_MASK (3 << TCR_BIT)
#define TCE_BIT (1 << 5)
#define EEP_REFRESH_EN 1
#define EEP_REFRESH_DIS 0
/* The longest mentioned timeout in the datasheet is 63 ms,
round up to 70 ms to be on the safe side. */
#define EEP_SYNC_TIMEOUT_MS 70
#endif /* _I2C_RV3028C7_H_ */
|
