2.4.21-ben2 issues: RTC, Thermal and RTAS
geert at linux-m68k.org
Sun Jan 18 23:14:07 EST 2004
On Tue, 13 Jan 2004, Sven Luther wrote:
> On Tue, Jan 13, 2004 at 06:09:38PM +0100, Geert Uytterhoeven wrote:
> > On Tue, 13 Jan 2004, Sven Luther wrote:
> > > On Wed, Dec 17, 2003 at 11:13:58AM +0100, Geert Uytterhoeven wrote:
> > > > On Wed, 17 Dec 2003, Sven Luther wrote:
> > > > > On Wed, Dec 17, 2003 at 10:57:07AM +0100, Geert Uytterhoeven wrote:
> > > > > > It uses the PC-style RTC driver (genrtc.o is not loaded).
> > > > >
> > > > > Mmm, what was your box again ? a chrp no ?
> > > >
> > > > Yep, CHRP LongTrail. It has a Winbond/Symphony Labs W83C553 SouthBridge.
> > >
> > > Could you tell me the content of your rtc OF node ? In particular i am
> > > interested in the reg value (probably 70/71 in isa space or so), and of
> > > the compatible stuff (i have ds1385-rtc).
> > /proc/device-tree/pci/isa at 1/rtc/ has:
> > total 0
> > -r--r--r-- 1 root root 11 Jan 13 18:06 compatible
> > -r--r--r-- 1 root root 4 Jan 13 18:06 device_type
> > -r--r--r-- 1 root root 4 Jan 13 18:06 linux,phandle
> > -r--r--r-- 1 root root 4 Jan 13 18:06 name
> > -r--r--r-- 1 root root 12 Jan 13 18:06 reg
> > compatible: pnpPNP,b00 (ASCII)
> > device_type: rtc (ASCII)
> > linux,phandle: ff86 2aa4 (hexdump)
> > name: rtc (ASCII)
> > reg: 0000 0001 0000 0070 0000 0002 (hexdump)
> Ok. So, this is almost the same as me, except i have a ds1385-rtc
> compatible version, and some interrupt stuff.
> Can you confirm that the GEN_RTC driver works for you ?
To my surprise, genrtc in 2.4.23 does not work on my LongTrail!
The kernel crashes in init/do_mounts.c:mount_block_root() right after the call
to sys_chdir(), because current->fs is a NULL pointer. Weird, and it doesn't
really look genrtc-related, although the same source tree works fine if I
disable genrtc and build in rtc.
I also tried 2.6.0, and there it works fine, both in the builtin and modular
case: the kernel got the correct time, and hwclock works.
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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