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merge Bug fix by Bruno-w (https://github.com/Bruno-w): RTC alarm wake-up

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Because of the S3C2410 bug (INT_SRCPND_RTC not set on alarm wake-up), the
firmware need to check on power-on if an alarm is triggered by comparing the
alarm date to the system date.  But, It failed because the firmware read a
system date that is 1 second behind the alarm date, while the cpu was waked-up
by an alarm.  This is because x49gp uses 2 different functions to read host
system time in 2 key routines, leading to a 1 second gap when used consecutively.
This fix solved this issue.
This commit is contained in:
Eddie C. Dost 2017-10-26 10:45:20 +02:00
parent 8cf3104ce8
commit d5239f657d
1 changed files with 3 additions and 5 deletions
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8
s3c2410_rtc.c
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@ -225,7 +225,6 @@ s3c2410_rtc_alarm(void * user_data)
static int
s3c2410_rtc_set_rtcalm(s3c2410_rtc_t *rtc)
{
struct tm *tm;
struct timeval tv;
int64_t now, us;
@ -235,7 +234,6 @@ s3c2410_rtc_set_rtcalm(s3c2410_rtc_t *rtc)
}
gettimeofday(&tv, NULL);
tm = localtime(&tv.tv_sec);
now = x49gp_get_clock();
us = 1000000LL - tv.tv_usec;
@ -265,10 +263,10 @@ s3c2410_rtc_read(void *opaque, target_phys_addr_t offset)
if (S3C2410_RTC_BCDSEC <= offset && offset <= S3C2410_RTC_BCDYEAR) {
struct tm *tm;
time_t t;
struct timeval tv;
t = time(0);
tm = localtime(&t);
gettimeofday(&tv, NULL);
tm = localtime(&tv.tv_sec);
switch (offset) {
case S3C2410_RTC_BCDSEC: