6b13f685e
김민수
BSP 최초 추가
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#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
typedef struct rtc5200 {
volatile ulong tsr;
volatile ulong dsr;
volatile ulong nysr;
volatile ulong aier;
volatile ulong ctr;
volatile ulong cdr;
volatile ulong asir;
volatile ulong piber;
volatile ulong trdr;
} RTC5200;
#define RTC_SET 0x02000000
#define RTC_PAUSE 0x01000000
int rtc_get (struct rtc_time *tmp)
{
RTC5200 *rtc = (RTC5200 *) (CONFIG_SYS_MBAR+0x800);
ulong time, date, time2;
do {
time = rtc->ctr;
date = rtc->cdr;
time2 = rtc->ctr;
} while (time != time2);
tmp->tm_year = date & 0xfff;
tmp->tm_mon = (date >> 24) & 0xf;
tmp->tm_mday = (date >> 16) & 0x1f;
tmp->tm_wday = (date >> 21) & 7;
if (tmp->tm_wday == 7)
tmp->tm_wday = 0;
tmp->tm_hour = (time >> 16) & 0x1f;
tmp->tm_min = (time >> 8) & 0x3f;
tmp->tm_sec = time & 0x3f;
debug ( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d
",
tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
return 0;
}
int rtc_set (struct rtc_time *tmp)
{
RTC5200 *rtc = (RTC5200 *) (CONFIG_SYS_MBAR+0x800);
ulong time, date, year;
debug ( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d
",
tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
time = (tmp->tm_hour << 16) | (tmp->tm_min << 8) | tmp->tm_sec;
date = (tmp->tm_mon << 16) | tmp->tm_mday;
if (tmp->tm_wday == 0)
date |= (7 << 8);
else
date |= (tmp->tm_wday << 8);
year = tmp->tm_year;
time &= 0x001f3f3f;
date &= 0x001f071f;
year &= 0x00000fff;
rtc->nysr = year;
rtc->dsr = date | RTC_PAUSE;
udelay (1000);
rtc->dsr = date | RTC_PAUSE | RTC_SET;
udelay (1000);
rtc->dsr = date | RTC_PAUSE;
udelay (1000);
rtc->dsr = date;
udelay (1000);
rtc->tsr = time | RTC_PAUSE;
udelay (1000);
rtc->tsr = time | RTC_PAUSE | RTC_SET;
udelay (1000);
rtc->tsr = time | RTC_PAUSE;
udelay (1000);
rtc->tsr = time;
udelay (1000);
return 0;
}
void rtc_reset (void)
{
return;
}
#endif
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