dumalogiya
/
openwrt
2
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
v19.07.3_mercusys_ac12_duma
master
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '9e8e8b7253'
${ noResults }
openwrt/package/base-files/files/etc/init.d
History
Petr Štetiar 9e8e8b7253 base-files: sysfixtime: Keep RTC time in UTC timezone 
We need to tell hwclock with -u commandline option, that we would like
to keep our RTC clock in UTC timezone. Linux kernel expects RTC in UTC
timezone anyway.

In current state of things, we don't tell hwclock to load/store time
from/to RTC in UTC timezone so it uses the timezone from the system
time. If it's set to different timezone then UTC, sysfixtime is going to
screw the time in RTC.

I've following in the setup script:

  uci set system.@system[0].timezone='CET-1CEST,M3.5.0,M10.5.0/3'
  uci set system.@system[0].zonename='Europe/Prague'

I've this RTC setup (rtc1 is RTC on i.MX6 SoC, rtc0 is battery backed RTC mcp7941x):

  rtc-ds1307 3-006f: rtc core: registered mcp7941x as rtc0
  snvs_rtc 20cc000.snvs:snvs-rtc-lp: rtc core: registered 20cc000.snvs:snvs-r as rtc1

Then we can experience following (current time is 10:15am):

	$ date
	Fri Oct 21 10:15:07 CEST 2016

	$ hwclock -r -f /dev/rtc0
	Fri Oct 21 08:14:46 2016  0.000000 seconds

	$ hwclock -u -r -f /dev/rtc0
	Fri Oct 21 10:14:46 2016  0.000000 seconds

And after current broken sysfixtime:

	$ /etc/init.d/sysfixtime stop

	$ date
	Fri Oct 21 10:15:25 CEST 2016

	$ hwclock -r -f /dev/rtc0
	Fri Oct 21 10:15:31 2016  0.000000 seconds

Now we've time in our battery backed RTC in CEST timezone instead of
UTC.  Then once again, but with this patch applied to sysfixtime, where
hwclock is using correctly the -u parameter:

	$ /etc/init.d/sysfixtime stop

	$ date
	Fri Oct 21 10:15:53 CEST 2016

	$ hwclock -r -f /dev/rtc0
	Fri Oct 21 08:15:55 2016  0.000000 seconds

Signed-off-by: Petr Štetiar <ynezz@true.cz>
Acked-by: Jo-Philipp Wich <jo@mein.io>
 		8 years ago
..
boot base-files: let config_generate call board_detect 8 years ago
done fstools: update to the latest version, makes interrupted first boot more reliable 9 years ago
gpio_switch base-files: implemented basic GPIO control 9 years ago
led base-files: add ucidef_set_led_usbport for full usbport support 8 years ago
sysctl base-files: reduce vm.min_free_kbytes for devices with 32M RAM 8 years ago
sysfixtime base-files: sysfixtime: Keep RTC time in UTC timezone 8 years ago
system branding: add LEDE branding 8 years ago
umount base-files: fix mount-utils incompatibility 11 years ago
urandom_seed base-files: use procd init for urandom_seed 8 years ago