mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
109 lines
2.3 KiB
C
109 lines
2.3 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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#if defined(CONFIG_CMD_DATE)
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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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#ifndef CONFIG_SYS_MCFRTC_BASE
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#error RTC_BASE is not defined!
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#endif
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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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#endif /* CONFIG_MCFRTC && CONFIG_CMD_DATE */
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