Thread (3 messages) 3 messages, 2 authors, 2013-07-31

[PATCH 4/4] ARM: sun6i: Enable clock support in the DTSI

From: maxime.ripard <hidden>
Date: 2013-07-31 15:49:59
Also in: lkml

Possibly related (same subject, not in this thread)


On Wed, Jul 31, 2013 at 08:10:32PM +0800, kevin.z.m wrote:
quoted
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
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20130731/0bb8be73/attachment.sig>
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help