Hello,

This problem (and it's fix) is *not* PPC64 specific. The exact same
problems occur on 32 bit powerpc platforms, and remain unaddressed.
Accordingy, I've reopened this bug.

I've rebuilt the powerpc configured kernel with CONFIG_RTC_DRV_PPC=m. I
added it to the initramfs, and loaded it at boot. This resolved the
issues with setting the hwclock.

Please apply CONFIG_RTC_DRV_PPC to all powerpc configurations.

Thank you.
Matt