[PATCH 1/2] arm: mvebu: add RTC support for Armada 370 and Armada XP

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Tue Dec 11 03:18:16 EST 2012

Dear Andrew Lunn,

On Tue, 11 Dec 2012 07:00:50 +0100, Andrew Lunn wrote:

> This is not actually true. Its dependent on at least one external
> component, a battery. The driver determines at load time if the clock
> is ticking.
> There are a few Kirkwood and XP designs which use an external i2c RTC,
> because the battery recommended by Marvell is mechanically not so easy
> to attached to the board, in a robust way.
> So i expect some boards will disable this from there own .dts file.
> However, defaulting to enabled would make sense.

Ok, thanks for the clarification!

Indeed, the OpenBlocks for example has a RTC on I2C, so maybe it'll
want to disable the on-SoC RTC.

Best regards,

Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.

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