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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
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* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
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*/
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#include <common.h>
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#include <command.h>
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#include <rtc.h>
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#include <asm/immap.h>
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#include <asm/rtc.h>
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#undef RTC_DEBUG
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#define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
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#define STARTOFTIME 1970
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int rtc_get(struct rtc_time *tmp)
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{
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volatile rtc_t *rtc = (rtc_t *) (CONFIG_SYS_MCFRTC_BASE);
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int rtc_days, rtc_hrs, rtc_mins;
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int tim;
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rtc_days = rtc->days;
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rtc_hrs = rtc->hourmin >> 8;
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rtc_mins = RTC_HOURMIN_MINUTES(rtc->hourmin);
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tim = (rtc_days * 24) + rtc_hrs;
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tim = (tim * 60) + rtc_mins;
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tim = (tim * 60) + rtc->seconds;
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rtc_to_tm(tim, tmp);
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tmp->tm_yday = 0;
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tmp->tm_isdst = 0;
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#ifdef RTC_DEBUG
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printf("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
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tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
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tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
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#endif
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return 0;
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}
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int rtc_set(struct rtc_time *tmp)
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{
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volatile rtc_t *rtc = (rtc_t *) (CONFIG_SYS_MCFRTC_BASE);
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static int month_days[12] = {
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31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
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};
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int days, i, months;
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if (tmp->tm_year > 2037) {
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printf("Unable to handle. Exceeding integer limitation!\n");
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tmp->tm_year = 2027;
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}
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#ifdef RTC_DEBUG
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printf("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
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tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
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tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
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#endif
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/* calculate days by years */
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for (i = STARTOFTIME, days = 0; i < tmp->tm_year; i++) {
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days += 365 + isleap(i);
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}
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/* calculate days by months */
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months = tmp->tm_mon - 1;
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for (i = 0; i < months; i++) {
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days += month_days[i];
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if (i == 1)
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days += isleap(i);
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}
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days += tmp->tm_mday - 1;
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rtc->days = days;
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rtc->hourmin = (tmp->tm_hour << 8) | tmp->tm_min;
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rtc->seconds = tmp->tm_sec;
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return 0;
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}
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void rtc_reset(void)
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{
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volatile rtc_t *rtc = (rtc_t *) (CONFIG_SYS_MCFRTC_BASE);
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if ((rtc->cr & RTC_CR_EN) == 0) {
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printf("real-time-clock was stopped. Now starting...\n");
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rtc->cr |= RTC_CR_EN;
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}
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rtc->cr |= RTC_CR_SWR;
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}
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