[coreboot] rtc wake up does not work on ASUS M2V-MX SE

[Stefan Reinauer]

* Jiang Wang <jwangzju at gmail.com> [110418 23:38]:
> Hi,
> 
> I want to use the rtc wake up function on coreboot and Linux on ASUS
> M2V MX-SE. I used rtcwake command (ver 2.19)  from
> ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/ to automatically
> wake up the machine after an S3 sleep. This works well on manufactured
> ASUS bios. But with coreboot, it reports an error, "open device
> /sys/class/rtc/rtc0/device/power/wakeup failed." It seems the command
> try to find /dev/rtc0 but failed. And I checked that device manually;
> it does not exist.

Sounds like some node is missing in the DSDT?