From: Florian Fainelli <f.fainelli@gmail•com>
To: vicentiu.galanopulo@nxp•com, andrew@lunn•ch, robh@kernel•org,
netdev@vger•kernel.org, linux-kernel@vger•kernel.org,
mark.rutland@arm•com, davem@davemloft•net, marcel@holtmann•org,
devicetree@vger•kernel.org
Cc: alexandru.marginean@nxp•com, madalin.bucur@nxp•com
Subject: Re: [PATCH net-next 1/3] net: phy: Add binding for vendor specific C45 MDIO address space
Date: Tue, 17 Apr 2018 11:18:20 -0700 [thread overview]
Message-ID: <bc00cc86-2293-0fd2-4e98-c516f59f97ce@gmail.com> (raw)
In-Reply-To: <20180417090233.21548-2-vicentiu.galanopulo@nxp.com>
On 04/17/2018 02:02 AM, Vicentiu Galanopulo wrote:
> The extra property enables the discovery on the MDIO bus
> of the PHYs which have a vendor specific address space
> for accessing the C45 MDIO registers.
>
> Signed-off-by: Vicentiu Galanopulo <vicentiu.galanopulo@nxp•com>
> ---
> Documentation/devicetree/bindings/net/phy.txt | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
> index d2169a5..82692e2 100644
> --- a/Documentation/devicetree/bindings/net/phy.txt
> +++ b/Documentation/devicetree/bindings/net/phy.txt
> @@ -61,6 +61,11 @@ Optional Properties:
> - reset-deassert-us: Delay after the reset was deasserted in microseconds.
> If this property is missing the delay will be skipped.
>
> +- dev-addr: If set, it indicates the device address of the PHY to be used
> + when accessing the C45 PHY registers over MDIO. It is used for vendor specific
> + register space addresses that do no conform to standard address for the MDIO
> + registers (e.g. MMD30)
Rob made that comment earlier, and I have to ask again now, why don't we
have the Clause 45 PHY binding be modified such that you have a reg
property that has #address-size = 2? This should be entirely backwards
compatible, but it would allow you to specify that device address in a
more traditional way.
> +
> Example:
>
> ethernet-phy@0 {
> @@ -72,4 +77,5 @@ ethernet-phy@0 {
> reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
> reset-assert-us = <1000>;
> reset-deassert-us = <2000>;
> + dev-addr = <0x1e>;
> };
>
--
Florian
next prev parent reply other threads:[~2018-04-17 18:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 9:02 [PATCH net-next 0/3] net: phy: Enable C45 vendor specific MDIO register addr space Vicentiu Galanopulo
2018-04-17 9:02 ` [PATCH net-next 1/3] net: phy: Add binding for vendor specific C45 MDIO address space Vicentiu Galanopulo
2018-04-17 12:53 ` Andrew Lunn
2018-04-17 18:18 ` Florian Fainelli [this message]
2018-04-17 18:27 ` Andrew Lunn
2018-04-17 18:29 ` Florian Fainelli
2018-04-24 13:14 ` Rob Herring
2018-04-17 9:02 ` [PATCH net-next 2/3] net: phy: Change the array size to 32 for device_ids Vicentiu Galanopulo
2018-04-17 12:54 ` Andrew Lunn
2018-04-17 18:18 ` Florian Fainelli
2018-04-17 9:02 ` [PATCH net-next 3/3] net: phy: Enable C45 PHYs with vendor specific address space Vicentiu Galanopulo
2018-04-17 12:56 ` Andrew Lunn
2018-04-17 18:27 ` Florian Fainelli
2018-04-18 9:38 ` Vicenţiu Galanopulo
2018-04-18 12:27 ` Andrew Lunn
2018-04-25 22:46 ` kbuild test robot
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