Package: linux-2.6
Version: 2.6.25
Severity: normal
Tags: patch


The attached kernel and config.powerpc64 patches add a
new style RTC class driver that works with most powerpc64
platforms.

This driver, enabled with the CONFIG_RTC_DRV_PPC option,
replaces the old gen_rtc support that was enabled with
the CONFIG_GEN_RTC option. The old CONFIG_GEN_RTC option
is incompatible with the RTC class system and can no
longer be enabled in the Debian kernel config.

This patch has been submitted for mainline 2.6.27:

http://patchwork.ozlabs.org/linuxppc/patch?id=18139


Without this RTC class driver, the following error can
be seen at start up:

Setting the system clock.
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
* Unable to set System Clock to: Fri May 30 20:33:06 UTC 2008

The problem can also be reproduced with these steps:

# hwclock --debug
hwclock from util-linux-ng 2.13.1.1
hwclock: Open of /dev/rtc failed, errno=2: No such file or directory.
No usable clock interface found.
Cannot access the Hardware Clock via any known method.
# ls -l /dev/rtc*
ls: cannot access /dev/rtc*: No such file or directory


-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: powerpc (ppc64)

Kernel: Linux 2.6.25-3-powerpc64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

On 06/05/2008 09:45 AM, Geoff Levand wrote:
> The attached kernel and config.powerpc64 patches add a
> new style RTC class driver that works with most powerpc64
> platforms.

This patch was merged in to mainline for 2.6.26-rc6.

author David Woodhouse <dwmw2@infradead.org>
Fri, 6 Jun 2008 05:46:50 +0000 (22:46 -0700)
committer Linus Torvalds <torvalds@linux-foundation.org>
Fri, 6 Jun 2008 18:29:13 +0000 (11:29 -0700)
commit aabe188565124ee2ed060a072764d6ed34dfa4ed
tree b2570905b65a6caa39f266f591b2907ff2c530f2
parent ec0ced156f930aba24e7527905de294ad929ef65

-Geoff




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