linux-kernel - Re: [PATCH v1] ARM: imx6plus: enable internal routing of clk_enet

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Date:   Tue, 23 Jun 2020 11:19:25 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Sven Van Asbroeck <thesven73@...il.com>
Cc:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1] ARM: imx6plus: enable internal routing of clk_enet_ref
 where possible

Hi Sven,

On Sat, Jun 13, 2020 at 5:17 PM Sven Van Asbroeck <thesven73@...il.com> wrote:

> +       /*
> +        * On imx6 plus, enet_ref from ANATOP/CCM can be internally routed to
> +        * be the PTP clock source, instead of having to be routed through
> +        * pads.
> +        * Board designs which route the ANATOP/CCM clock through pads are
> +        * unaffected when routing happens internally. So on these designs,
> +        * route internally by default.
> +        */
> +       if (clksel == IMX6Q_GPR1_ENET_CLK_SEL_ANATOP && cpu_is_imx6q() &&
> +                       imx_get_soc_revision() >= IMX_CHIP_REVISION_2_0) {

You should limit this to imx6 quad plus only, so you would better
check against "fsl,imx6qp".