System time: Init from rtc on startup, update in timer inerrupt.

1 files changed, 13 insertions, 0 deletions

diff --git a/avr/main.c b/avr/main.c
index 7e832bf..8acf265 100644
--- a/avr/main.c
+++ b/avr/main.c
@@ -20,6 +20,8 @@
 #include "z180-serv.h"
 #include "spi.h"
 #include "gpio.h"
+#include "time.h"
+#include "rtc.h"
 
 static uint8_t mcusr;
 
@@ -132,6 +134,16 @@ int reset_reason_is_power_on(void)
 	return (mcusr & _BV(PORF)) != 0;
 }
 
+static
+void setup_system_time(void)
+{
+	struct tm rtc_time;
+
+	rtc_get(&rtc_time);
+	rtc_time.tm_isdst = 0;
+	set_system_time(mk_gmtime(&rtc_time) );
+}
+
 /*--------------------------------------------------------------------------*/
 
 /* Stored value of bootdelay, used by autoboot_command() */
@@ -252,6 +264,7 @@ int main(void)
 #else
 	i2c_init(CONFIG_SYS_I2C_CLOCK);
 #endif
+	setup_system_time();
 
 	printf_P(PSTR("\nATMEGA1281+Z8S180 Stamp Monitor\n\n"));