Gentoo Archives: gentoo-embedded

From: Joe Sapp <nixphoeni@g.o>
To: gentoo-embedded@l.g.o
Subject: Re: [gentoo-embedded] Getting network time early in boot
Date: Thu, 31 Mar 2011 12:08:08
Message-Id: 4D946B97.4080701@gentoo.org
In Reply to: Re: [gentoo-embedded] Getting network time early in boot by Wolfgang Denk
1 On 03/30/2011 04:59 AM, Wolfgang Denk wrote:
2 > Dear Joe Sapp,
3 >
4 > In message <4D92902B.5000300@g.o> you wrote:
5 >>
6 >> I've got a board with no RTC so there are some problems during boot.
7 >> Currently there's a hack in the udev init script to get the time from the
8 >> network (via ntp or rdate), but I'm wondering if somebody else has solved
9 >> this in a better way. Any ideas?
10 >
11 > If your board uses U-Boot as boot loader, you can enable SNTP support
12 > in U-Boot and get and set the time already there, before you even boot
13 > into Linux.
14
15 It does use U-Boot, so maybe a combination of this and swclock (from
16 sys-apps/openrc) is the most reliable way to set the time for my application.
17
18 Thanks all for the ideas.
19
20 Joe