[PATCH] clk: vf610: Add support for the Ethernet switch clocks
Łukasz Majewski
lukma at nabladev.com
Fri Jan 23 05:12:52 PST 2026
Hi Andrew,
> Hi Andrew,
>
> > On Thu, Jan 22, 2026 at 02:06:49PM +0100, Lukasz Majewski wrote:
> > > The vf610 device has built in the MoreThanIP L2 switch. For proper
> > > operation it is required to enable ESW and MAC table lookup
> > > clocks.
> > >
> > > The MAC table spans from 0x400E_C000 for 0x4000 and it is
> > > necessary to provide clocks for each AIPS1-"slot", which size is
> > > 0x1000 (hence four separate entries).
> > >
> > > Those can be enabled via clock gating CCM_CCGR10 register
> > > (0x4006_B068).
> >
> > Sorry, i lost track of the state of the switch driver.
>
> New year, new MTIP L2 switch patches in preparation :-)
>
Just to share:
https://github.com/lmajewski/linux-imx28-l2switch/commits/vf610-linux-6.6.y-mtipl2sw
The driver has been tested (after backporting) on v6.6 LTS with
PREEMPT_RT.
Moreover, I've added support for switchdev.
> > Is there also a
> > patch to add consumers of these clocks?
>
> In short - this patch set is a preparatory one for vf610 SoC support
> of the MTIP L2 switch.
>
> Those changes describe more thoroughly the clock subsystem of this
> SoC.
>
> >
> > > Signed-off-by: Lukasz Majewski <lukma at nabladev.com>
> >
> > Reviewed-by: Andrew Lunn <andrew at lunn.ch>
> >
> > Andrew
>
--
Best regards,
Lukasz Majewski
--
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