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am335x kernel 3.14.43休眠不能唤醒



  你好!我们在am335x上使用官方3.14.43 版本内核时, 系统使用rtc定时休眠后无法唤醒。

    但在基于官方3.2 版本内核上加载固件后可以正常工作不需要做其它修改。

    下面为我们的相关配置和操作,请帮助一下,谢谢。

    内核版本:linux-3.14.43

    wkup m3: 版本为0x190

    devices tree 配置:

 &wkup_m3 {
    status = "okay";
};

&rtc {
    ti,system-power-controller;
    status = "okay";
};

操作命令:

    root@VT-M2M-AM335X:~# rtcwake -d /dev/rtc0 -s 5
wakeup from "standby" at Sat Jan  1 00:01:25 2000
[   82.576903] PM: Syncing filesystems ... done.
[   82.594951] Freezing user space processes ... (elapsed 0.001 seconds) done.
[   82.603463] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[   82.612380] Suspending console(s) (use no_console_suspend to debug)