From: Robert Marko <robert.marko@sartura.hr>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
David Miller <davem@davemloft.net>,
kuba@kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
robh+dt@kernel.org
Subject: Re: [net-next,PATCH 4/4] dt-bindings: mdio-ipq4019: add clock support
Date: Thu, 2 Jul 2020 21:18:38 +0200 [thread overview]
Message-ID: <CA+HBbNGcV0H4L4gzWOUs8GDkiMEOaGdeVhAbtfcT5-PGmVJjfA@mail.gmail.com> (raw)
In-Reply-To: <20200702133842.GK730739@lunn.ch>
On Thu, Jul 2, 2020 at 3:38 PM Andrew Lunn <andrew@lunn.ch> wrote:
>
> > + clock-frequency:
> > + default: 100000000
>
> IEEE 802.3 says the default should be 2.5MHz. Some PHYs will go
> faster, but 100MHz seems unlikely!
This MDIO controller has an internal divider, by default its set for
100MHz clock.
In IPQ4019 MDIO clock is not controllable but in IPQ6018 etc it's controllable.
That is the only combination I have currently seen used by Qualcomm.
>
> Andrew
next prev parent reply other threads:[~2020-07-02 19:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-02 10:29 [net-next,PATCH 0/4] net: mdio-ipq4019: add Clause 45 and clock support Robert Marko
2020-07-02 10:29 ` [net-next,PATCH 1/4] net: mdio-ipq4019: change defines to upper case Robert Marko
2020-07-02 13:25 ` Andrew Lunn
2020-07-02 19:58 ` Florian Fainelli
2020-07-02 10:29 ` [net-next,PATCH 2/4] net: mdio-ipq4019: add clock support Robert Marko
2020-07-02 13:29 ` Andrew Lunn
2020-07-02 19:59 ` Florian Fainelli
2020-07-03 11:37 ` Robert Marko
2020-07-03 13:35 ` Andrew Lunn
2020-07-02 10:30 ` [net-next,PATCH 3/4] net: mdio-ipq4019: add Clause 45 support Robert Marko
2020-07-02 13:35 ` Andrew Lunn
2020-07-02 10:30 ` [net-next,PATCH 4/4] dt-bindings: mdio-ipq4019: add clock support Robert Marko
2020-07-02 13:38 ` Andrew Lunn
2020-07-02 19:18 ` Robert Marko [this message]
2020-07-02 20:04 ` Florian Fainelli
2020-07-03 7:44 ` Robert Marko
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