[people/ms/u-boot.git] / drivers / rtc / mc13xxx-rtc.c

/*
 * Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.de>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <rtc.h>
#include <spi.h>
#include <power/pmic.h>
#include <fsl_pmic.h>

int rtc_get(struct rtc_time *rtc)
{
	u32 day1, day2, time;
	int tim, i = 0;
	struct pmic *p = pmic_get("FSL_PMIC");
	int ret;

	if (!p)
		return -1;
	do {
		ret = pmic_reg_read(p, REG_RTC_DAY, &day1);
		if (ret < 0)
			return -1;

		ret = pmic_reg_read(p, REG_RTC_TIME, &time);
		if (ret < 0)
			return -1;

		ret = pmic_reg_read(p, REG_RTC_DAY, &day2);
		if (ret < 0)
			return -1;

	} while (day1 != day2 && i++ < 3);

	tim = day1 * 86400 + time;

	rtc_to_tm(tim, rtc);

	rtc->tm_yday = 0;
	rtc->tm_isdst = 0;

	return 0;
}

int rtc_set(struct rtc_time *rtc)
{
	u32 time, day;
	struct pmic *p = pmic_get("FSL_PMIC");
	if (!p)
		return -1;

	time = rtc_mktime(rtc);
	day = time / 86400;
	time %= 86400;

	pmic_reg_write(p, REG_RTC_DAY, day);
	pmic_reg_write(p, REG_RTC_TIME, time);

	return 0;
}

void rtc_reset(void)
{
}
Commit	Line	Data
7ce63709 GL	1	/*
	2	* Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.de>
	3	*
1a459660	4	* SPDX-License-Identifier: GPL-2.0+
7ce63709 GL	5	*/
	6
	7	#include <common.h>
	8	#include <rtc.h>
	9	#include <spi.h>
c7336815	10	#include <power/pmic.h>
dfe5e14f	11	#include <fsl_pmic.h>
d255bb0e	12
7ce63709 GL	13	int rtc_get(struct rtc_time *rtc)
	14	{
	15	u32 day1, day2, time;
dfe5e14f	16	int tim, i = 0;
c7336815	17	struct pmic *p = pmic_get("FSL_PMIC");
4380075e	18	int ret;
7ce63709	19
c7336815 ŁM	20	if (!p)
c7336815 ŁM	21	return -1;
7ce63709	22	do {
4380075e SB	23	ret = pmic_reg_read(p, REG_RTC_DAY, &day1);
4380075e SB	24	if (ret < 0)
dfe5e14f	25	return -1;
7ce63709	26
4380075e SB	27	ret = pmic_reg_read(p, REG_RTC_TIME, &time);
4380075e SB	28	if (ret < 0)
dfe5e14f	29	return -1;
7ce63709	30
4380075e SB	31	ret = pmic_reg_read(p, REG_RTC_DAY, &day2);
4380075e SB	32	if (ret < 0)
dfe5e14f	33	return -1;
7ce63709	34
7ce63709 GL	35	} while (day1 != day2 && i++ < 3);
	36
	37	tim = day1 * 86400 + time;
dfe5e14f	38
9f9276c3	39	rtc_to_tm(tim, rtc);
7ce63709 GL	40
	41	rtc->tm_yday = 0;
	42	rtc->tm_isdst = 0;
	43
	44	return 0;
	45	}
	46
d1e23194	47	int rtc_set(struct rtc_time *rtc)
7ce63709	48	{
dfe5e14f	49	u32 time, day;
c7336815 ŁM	50	struct pmic *p = pmic_get("FSL_PMIC");
	51	if (!p)
	52	return -1;
d255bb0e	53
71420983	54	time = rtc_mktime(rtc);
7ce63709 GL	55	day = time / 86400;
	56	time %= 86400;
	57
4380075e SB	58	pmic_reg_write(p, REG_RTC_DAY, day);
4380075e SB	59	pmic_reg_write(p, REG_RTC_TIME, time);
d1e23194	60
f3a7bddc	61	return 0;
7ce63709 GL	62	}
	63
	64	void rtc_reset(void)
	65	{
	66	}