tree ac92441c0286fc3458339589c4e9de27e6be6067
parent 10c9c10c31514564b09c153432a42ffaea3ce831
author GuanXuetao <gxt@mprc.pku.edu.cn> 1295086743 +0800
committer GuanXuetao <gxt@mprc.pku.edu.cn> 1300324750 +0800

unicore32 core architecture: timer and time handling

This patch implements timer and time.
RTC and PWM device drivers are also here.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>