linux-kernel - Re: [PATCH] clk: vf610: Add support for the Ethernet switch clocks

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Message-ID: <20260122200514.3cdb6fb6@wsk>
Date: Thu, 22 Jan 2026 20:05:14 +0100
From: Łukasz Majewski <lukma@...ladev.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: Michael Turquette <mturquette@...libre.com>, Abel Vesa
 <abelvesa@...nel.org>, Peng Fan <peng.fan@....com>, Stephen Boyd
 <sboyd@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer
 <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, linux-clk@...r.kernel.org,
 imx@...ts.linux.dev, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] clk: vf610: Add support for the Ethernet switch clocks

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 :-)

> 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@...ladev.com>  
> 
> Reviewed-by: Andrew Lunn <andrew@...n.ch>
> 
>     Andrew

-- 
Best regards,

Lukasz Majewski

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