From: "maxime.ripard" <maxime.ripard@free-electrons.com>
To: "kevin.z.m" <kevin.z.m.zh@gmail.com>
Cc: "Emilio Lopez" <emilio@elopez.com.ar>,
"Mike Turquette" <mturquette@linaro.org>,
孙彦邦 <sunny@allwinnertech.com>, 吴书耕 <shuge@allwinnertech.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Re: [PATCH 4/4] ARM: sun6i: Enable clock support in the DTSI
Date: Wed, 31 Jul 2013 17:49:53 +0200 [thread overview]
Message-ID: <20130731154953.GG2911@lukather> (raw)
In-Reply-To: <2013073120102496855035@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 903 bytes --]
On Wed, Jul 31, 2013 at 08:10:32PM +0800, kevin.z.m wrote:
> > 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".
Ok, just so that we're on the same page, we have two oscillators running
at 32kHz, the internal being always there, and the external that could
or could not be there, and it's each different hardware block that can
be wired to one, the other or both?
There's no global mux that could use either one of the two 32k to
provide the only 32kHz source in the system, right?
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
next prev parent reply other threads:[~2013-07-31 15:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-30 14:44 [PATCH 0/4] Add support for the Allwinner A31 clocks Maxime Ripard
2013-07-30 14:44 ` [PATCH 1/4] clk: sunxi: Rename the structure to prepare the addition of sun6i Maxime Ripard
2013-07-31 0:14 ` Emilio López
2013-07-31 9:20 ` Maxime Ripard
2013-07-30 14:44 ` [PATCH 2/4] clk: sunxi: Allow to specify the divider width from the dividers data Maxime Ripard
2013-07-31 0:27 ` Emilio López
2013-07-30 14:44 ` [PATCH 3/4] clk: sunxi: Add A31 clocks support Maxime Ripard
2013-07-31 1:01 ` Emilio López
2013-07-31 10:14 ` Maxime Ripard
2013-08-12 12:53 ` Mark Rutland
2013-08-12 13:01 ` Emilio López
2013-08-12 13:54 ` Mark Rutland
2013-07-30 14:44 ` [PATCH 4/4] ARM: sun6i: Enable clock support in the DTSI Maxime Ripard
2013-07-31 1:36 ` Emilio López
2013-07-31 7:37 ` Maxime Ripard
[not found] ` <2013073116110750016327@gmail.com>
2013-07-31 11:37 ` Emilio López
2013-07-31 11:49 ` maxime.ripard
[not found] ` <2013073120102496855035@gmail.com>
2013-07-31 15:49 ` maxime.ripard [this message]
[not found] ` <2013080108343040654547@gmail.com>
2013-08-01 9:53 ` maxime.ripard
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130731154953.GG2911@lukather \
--to=maxime.ripard@free-electrons.com \
--cc=emilio@elopez.com.ar \
--cc=kevin.z.m.zh@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mturquette@linaro.org \
--cc=shuge@allwinnertech.com \
--cc=sunny@allwinnertech.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox