Minimal support for dm814x

Matthijs van Duin matthijsvanduin at
Tue Nov 10 02:44:31 PST 2015

On 10 November 2015 at 11:23, Delio Brignoli <dbrignoli at> wrote:
> are you aware of section 2.1.2 of ...

I am. It seems that the digital PLLs tend to produce an asymmetrical
clock in general hence you need an even postdivider to get a 50% duty
cycle. DPLL-S however already has an implicit /2 divider integrated,
and a few peripherals seem to be fine with an asymmetrical clock (e.g.
apparently the USB subsystem which is clocked by PLL_USB / 5).

In the most recent SoCs they included a "DC corrector" in some PLLs to
be able to symmetrize the clock without the need for postdivision.

More information about the linux-arm-kernel mailing list