ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/uboot/drivers/rtc/mcfrtc.c b/marvell/uboot/drivers/rtc/mcfrtc.c
new file mode 100644
index 0000000..8961ca4
--- /dev/null
+++ b/marvell/uboot/drivers/rtc/mcfrtc.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+
+#if defined(CONFIG_CMD_DATE)
+
+#include <command.h>
+#include <rtc.h>
+#include <asm/immap.h>
+#include <asm/rtc.h>
+
+#undef RTC_DEBUG
+
+#ifndef CONFIG_SYS_MCFRTC_BASE
+#error RTC_BASE is not defined!
+#endif
+
+#define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
+#define STARTOFTIME 1970
+
+int rtc_get(struct rtc_time *tmp)
+{
+ volatile rtc_t *rtc = (rtc_t *) (CONFIG_SYS_MCFRTC_BASE);
+
+ int rtc_days, rtc_hrs, rtc_mins;
+ int tim;
+
+ rtc_days = rtc->days;
+ rtc_hrs = rtc->hourmin >> 8;
+ rtc_mins = RTC_HOURMIN_MINUTES(rtc->hourmin);
+
+ tim = (rtc_days * 24) + rtc_hrs;
+ tim = (tim * 60) + rtc_mins;
+ tim = (tim * 60) + rtc->seconds;
+
+ to_tm(tim, tmp);
+
+ tmp->tm_yday = 0;
+ tmp->tm_isdst = 0;
+
+#ifdef RTC_DEBUG
+ printf("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+#endif
+
+ return 0;
+}
+
+int rtc_set(struct rtc_time *tmp)
+{
+ volatile rtc_t *rtc = (rtc_t *) (CONFIG_SYS_MCFRTC_BASE);
+
+ static int month_days[12] = {
+ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+ };
+ int days, i, months;
+
+ if (tmp->tm_year > 2037) {
+ printf("Unable to handle. Exceeding integer limitation!\n");
+ tmp->tm_year = 2027;
+ }
+#ifdef RTC_DEBUG
+ printf("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+#endif
+
+ /* calculate days by years */
+ for (i = STARTOFTIME, days = 0; i < tmp->tm_year; i++) {
+ days += 365 + isleap(i);
+ }
+
+ /* calculate days by months */
+ months = tmp->tm_mon - 1;
+ for (i = 0; i < months; i++) {
+ days += month_days[i];
+
+ if (i == 1)
+ days += isleap(i);
+ }
+
+ days += tmp->tm_mday - 1;
+
+ rtc->days = days;
+ rtc->hourmin = (tmp->tm_hour << 8) | tmp->tm_min;
+ rtc->seconds = tmp->tm_sec;
+
+ return 0;
+}
+
+void rtc_reset(void)
+{
+ volatile rtc_t *rtc = (rtc_t *) (CONFIG_SYS_MCFRTC_BASE);
+
+ if ((rtc->cr & RTC_CR_EN) == 0) {
+ printf("real-time-clock was stopped. Now starting...\n");
+ rtc->cr |= RTC_CR_EN;
+ }
+
+ rtc->cr |= RTC_CR_SWR;
+}
+
+#endif /* CONFIG_MCFRTC && CONFIG_CMD_DATE */