PPC: set default date on PPC without RTC

PPC: set default date on PPC without RTC

[Wladislav Wiebe]

Hello guys,

would like to ask if there is a proper possibility on PPC to
set default date (basically the year). The board has no RTC chip,
and I would need instead of 1970 another year.

For some reason does e.g:
--- a/linux/arch/powerpc/kernel/time.c
+++ b/linux/arch/powerpc/kernel/time.c
@@ -1099,7 +1099,7 @@ void __init time_init(void)


 #define FEBRUARY       2
-#define        STARTOFTIME     1970
+#define        STARTOFTIME     2013
 #define SECDAY         86400L
 #define SECYR          (SECDAY * 365)
 #define        leapyear(year)          ((year) % 4 == 0 && \


not work to me. Is there also another place which should be changed?
(I know it can be changed from userspace also, but I would need it before userspace)


Thanks and BR,
Wladislav Wiebe

Re: PPC: set default date on PPC without RTC

[Wladislav Wiebe]

Hi,

no matter anymore - got it:

--- a/linux/arch/powerpc/kernel/time.c
+++ b/linux/arch/powerpc/kernel/time.c
@@ -832,7 +832,7 @@ static void __read_persistent_clock(struct timespec *ts)
 		}
 	}
 	if (!ppc_md.get_rtc_time) {
-		ts->tv_sec = 0;
+		ts->tv_sec = mktime(2011, 1, 1, 0, 0, 0);
 		return;
 	}
 	ppc_md.get_rtc_time(&tm);


On 11/09/13 11:39, Wladislav Wiebe wrote:
> Hello guys,
> 
> would like to ask if there is a proper possibility on PPC to
> set default date (basically the year). The board has no RTC chip,
> and I would need instead of 1970 another year.
> 
> For some reason does e.g:
> --- a/linux/arch/powerpc/kernel/time.c
> +++ b/linux/arch/powerpc/kernel/time.c
> @@ -1099,7 +1099,7 @@ void __init time_init(void)
> 
> 
>  #define FEBRUARY       2
> -#define        STARTOFTIME     1970
> +#define        STARTOFTIME     2013
>  #define SECDAY         86400L
>  #define SECYR          (SECDAY * 365)
>  #define        leapyear(year)          ((year) % 4 == 0 && \
> 
> 
> not work to me. Is there also another place which should be changed?
> (I know it can be changed from userspace also, but I would need it before userspace)
> 
> 
> Thanks and BR,
> Wladislav Wiebe
>