zephyr/drivers/rtc/rtc_dw.h

62 lines
1.5 KiB
C

/*
* Copyright (c) 2015 Intel Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _RTC_DW_H_
#define _RTC_DW_H_
#include <board.h>
#include <device.h>
#include <rtc.h>
#define RTC_CCVR (0x0)
#define RTC_CMR (0x4)
#define RTC_CLR (0x8)
#define RTC_CCR (0xC)
#define RTC_STAT (0x10)
#define RTC_RSTAT (0x14)
#define RTC_EOI (0x18)
#define RTC_COMP_VERSION (0x1C)
#define RTC_INTERRUPT_ENABLE (1 << 0)
#define RTC_INTERRUPT_MASK (1 << 1)
#define RTC_ENABLE (1 << 2)
#define RTC_WRAP_ENABLE (1 << 3)
#define RTC_CLK_DIV_EN (1 << 2)
#define RTC_CLK_DIV_MASK (0xF << 3)
#define RTC_CLK_DIV_1_HZ (0xF << 3)
#define RTC_CLK_DIV_32768_HZ (0x0 << 3)
#define RTC_CLK_DIV_8192_HZ (0x2 << 3)
#define RTC_CLK_DIV_4096_HZ (0x3 << 3)
struct rtc_dw_runtime {
void (*rtc_dw_cb_fn)(struct device *dev);
#ifdef CONFIG_RTC_DW_CLOCK_GATE
struct device *clock;
#endif
};
struct rtc_dw_dev_config {
uint32_t base_address;
#ifdef CONFIG_RTC_DW_CLOCK_GATE
void *clock_data;
#endif
};
int rtc_dw_init(struct device *dev);
#endif /* _RTC_DW_H_ */