From mboxrd@z Thu Jan 1 00:00:00 1970 From: kevin.z.m.zh@gmail.com (kevin.z.m) Date: Wed, 31 Jul 2013 20:10:32 +0800 Subject: [PATCH 4/4] ARM: sun6i: Enable clock support in the DTSI References: <1375195462-19566-1-git-send-email-maxime.ripard@free-electrons.com> <1375195462-19566-5-git-send-email-maxime.ripard@free-electrons.com> <51F86A2E.10505@elopez.com.ar> <20130731073724.GA24439@lukather> <2013073116110750016327@gmail.com>, <20130731114957.GD2911@lukather> Message-ID: <2013073120102496855035@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, Maxime, > How does one select either the internal or the external 32kHz > oscillator? Is this done in software (I can't find any reference to that > in the user manuals) or in hardware? For A20, it should be in the Timer module, and there is a register named "LOSC_CTRL_REG". For A31, it is in the RTC module, same name of "LOSC_CTRL_REG". Best Regards, kevin.z.m