diff options
Diffstat (limited to 'src/drivers/i2c/rv3028c7/rv3028c7.h')
| -rw-r--r-- | src/drivers/i2c/rv3028c7/rv3028c7.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/drivers/i2c/rv3028c7/rv3028c7.h b/src/drivers/i2c/rv3028c7/rv3028c7.h new file mode 100644 index 0000000000..55617a724f --- /dev/null +++ b/src/drivers/i2c/rv3028c7/rv3028c7.h @@ -0,0 +1,42 @@ +/* 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_ */ |