我最近移植了android到板子上 用nfs挂载文件系统出现了一下问题：

s3c2410-wdt: watchdog disabled
s3c2440-i2c s3c2440-i2c: slave address 0x10
s3c2440-i2c s3c2440-i2c: bus frequency set to 390 KHz
s3c2440-nand s3c2440-nand: Tacls=3, 30ns Twrph0=7 70ns, Twrph1=3 30ns
Restarting tasks ... done.
android_power_suspend: exit suspend, ret = 0
android_power_suspend: pm_suspend returned with no event
android_power_suspend: enter suspend
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.00 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
Suspending console(s)
s3c24xx-pm: No sources enabled for wake-up!
s3c24xx-pm: Aborting sleep
timer tcon=00500000, tcnt a2c1, tcfg 00000200,00000000, usec 00001eb8
s3c2410-wdt: watchdog disabled
s3c2440-i2c s3c2440-i2c: slave address 0x10
s3c2440-i2c s3c2440-i2c: bus frequency set to 390 KHz
s3c2440-nand s3c2440-nand: Tacls=3, 30ns Twrph0=7 70ns, Twrph1=3 30ns
Restarting tasks ... done.
android_power_suspend: exit suspend, ret = 0
android_power_suspend: pm_suspend returned with no event

不停地出现这些提示信息，请教一下问题出现在哪？

这是正常的，系统尝试进入Suspend to RAM省电模式，但发现没有wakeup source, 因此又立即退出了这一过程。

不过界面上没有显示ui，这是不是lcd驱动没搞好？

有这个可能.
如果你用的是shinelk最近发布的Android 2.1系统，他在文档里已经说明了暂时还不支持suspend模式，一个workaround是在"Setting"->“Application”->"Development"下面选中"Stay awake"

新手路过，帮顶。

路过，学习！