Re: aranym /dev/rtc
On Fri, May 15, 2009 at 09:07:53PM +0200, Geert Uytterhoeven wrote:
> On Fri, May 15, 2009 at 18:35, Lance Tagliapietra <email@example.com> wrote:
> > On Tue, Apr 28, 2009 at 09:58:31AM -0500, Stephen R Marenka wrote:
> >> On Mon, Apr 27, 2009 at 10:33:14PM +0200, Geert Uytterhoeven wrote:
> >> > On Mon, Apr 27, 2009 at 20:56, Stephen R Marenka <firstname.lastname@example.org> wrote:
> >> > > It was recently pointed out to me that under aranym there is no
> >> > > /dev/rtc and none of the rtc-*.ko modules helps.
> >> > >
> >> > > Of course openntpd does.
> >> > >
> >> > > Should rtc work? Did I miss something in the kernel config?
> >> >
> >> > Works here!
> >> >
> >> > $ hwclock -ur
> >> > Tue Apr 28 00:25:59 2009 ??-1.010041 seconds
> >> > $
> >> >
> >> > There are actually 4 options, some will not work yet, though:
> >> > ?? 1. CONFIG_RTC_CLASS=n, CONFIG_GEN_RTC=[my], /dev/rtc = 10,135
> >> > ?? ?? ??This is what I was using, using the deprecated generic RTC interface.
> >> > ?? 2. CONFIG_RTC_CLASS=n, CONFIG_RTC=[my], /dev/rtc = 10,135
> >> > ?? ?? ??Old style CMOS RTC driver, used to work on PC and Atari.
> >> > ?? 3. CONFIG_RTC_CLASS=y, CONFIG_RTC_DRV_GENERIC=[my], /dev/rtc is dynamic
> >> > ?? ?? ??Should work, as of 2.6.30-rc1, using RTC class on top of the
> >> > generic RTC interface.
> >> > ?? 4. CONFIG_RTC_CLASS=y, CONFIG_RTC_DRV_CMOS=[my], /dev/rtc is dynamic
> >> > ?? ?? ??While rtc-cmos can be enabled on Atari (it was derived from
> >> > rtc.c), it won't work yet,
> >> > ?? ?? ??as the necessary rtc_cmos platform device is not yet created on Atari.
> >> Config fixed for debian 2.6.29-4.
> > But I don't think the CONFIG_RTC_CLASS=y is correct for the Amiga kernel builds
> > but it is selected in the .config for the -amiga kernels available from
> > http://people.debian.org/~smarenka/m68k/kernel/
> > (the 2.6.26 and 2.6.28 that I have looked at, anyway).
> > I believe that CONFIG_GEN_RTC=y and CONFIG_GEN_RTC_X=y should be the proper
> > selections and CONFIG_RTC_CLASS should not be set. These are the defaults for the m68k arch.
> > I am currently building a kernel with these selection changes to verify (22.214.171.124).
> Indeed, CONFIG_RTC_CLASS=y is only useful for m68k in 2.6.30-rc*.
I see. Compile complete, hwclock -ur works reports the time as expected.