64151ad5b3
Add support for externally mapped ioaddr. This is required on sparc32 as the ioaddr must be mapped with of_ioremap(). Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*
|
|
* include/linux/rtc/m48t59.h
|
|
*
|
|
* Definitions for the platform data of m48t59 RTC chip driver.
|
|
*
|
|
* Copyright (c) 2007 Wind River Systems, Inc.
|
|
*
|
|
* Mark Zhan <rongkai.zhan@windriver.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _LINUX_RTC_M48T59_H_
|
|
#define _LINUX_RTC_M48T59_H_
|
|
|
|
/*
|
|
* M48T59 Register Offset
|
|
*/
|
|
#define M48T59_YEAR 0xf
|
|
#define M48T59_MONTH 0xe
|
|
#define M48T59_MDAY 0xd /* Day of Month */
|
|
#define M48T59_WDAY 0xc /* Day of Week */
|
|
#define M48T59_WDAY_CB 0x20 /* Century Bit */
|
|
#define M48T59_WDAY_CEB 0x10 /* Century Enable Bit */
|
|
#define M48T59_HOUR 0xb
|
|
#define M48T59_MIN 0xa
|
|
#define M48T59_SEC 0x9
|
|
#define M48T59_CNTL 0x8
|
|
#define M48T59_CNTL_READ 0x40
|
|
#define M48T59_CNTL_WRITE 0x80
|
|
#define M48T59_WATCHDOG 0x7
|
|
#define M48T59_INTR 0x6
|
|
#define M48T59_INTR_AFE 0x80 /* Alarm Interrupt Enable */
|
|
#define M48T59_INTR_ABE 0x20
|
|
#define M48T59_ALARM_DATE 0x5
|
|
#define M48T59_ALARM_HOUR 0x4
|
|
#define M48T59_ALARM_MIN 0x3
|
|
#define M48T59_ALARM_SEC 0x2
|
|
#define M48T59_UNUSED 0x1
|
|
#define M48T59_FLAGS 0x0
|
|
#define M48T59_FLAGS_WDT 0x80 /* watchdog timer expired */
|
|
#define M48T59_FLAGS_AF 0x40 /* alarm */
|
|
#define M48T59_FLAGS_BF 0x10 /* low battery */
|
|
|
|
#define M48T59RTC_TYPE_M48T59 0 /* to keep compatibility */
|
|
#define M48T59RTC_TYPE_M48T02 1
|
|
#define M48T59RTC_TYPE_M48T08 2
|
|
|
|
struct m48t59_plat_data {
|
|
/* The method to access M48T59 registers */
|
|
void (*write_byte)(struct device *dev, u32 ofs, u8 val);
|
|
unsigned char (*read_byte)(struct device *dev, u32 ofs);
|
|
|
|
int type; /* RTC model */
|
|
|
|
/* ioaddr mapped externally */
|
|
void __iomem *ioaddr;
|
|
/* offset to RTC registers, automatically set according to the type */
|
|
unsigned int offset;
|
|
};
|
|
|
|
#endif /* _LINUX_RTC_M48T59_H_ */
|