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Date:   Mon, 9 May 2022 17:24:26 +0200
From:   LABBE Corentin <clabbe@baylibre.com>
To:     Andrew Lunn <andrew@lunn.ch>
Cc:     alexandre.torgue@foss.st.com, broonie@kernel.org,
        calvin.johnson@oss.nxp.com, davem@davemloft.net,
        edumazet@google.com, hkallweit1@gmail.com,
        jernej.skrabec@gmail.com, joabreu@synopsys.com,
        krzysztof.kozlowski+dt@linaro.org, kuba@kernel.org,
        lgirdwood@gmail.com, linux@armlinux.org.uk, pabeni@redhat.com,
        peppe.cavallaro@st.com, robh+dt@kernel.org, samuel@sholland.org,
        wens@csie.org, netdev@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-sunxi@lists.linux.dev
Subject: Re: [PATCH 0/6] arm64: add ethernet to orange pi 3
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References: <20220509074857.195302-1-clabbe@baylibre.com>
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 <Ynkw9EekNj5Ih5gc@lunn.ch>
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Le Mon, May 09, 2022 at 05:19:16PM +0200, Andrew Lunn a ?crit :
> On Mon, May 09, 2022 at 03:27:30PM +0200, LABBE Corentin wrote:
> > Le Mon, May 09, 2022 at 02:20:07PM +0200, Andrew Lunn a ?crit :
> > > On Mon, May 09, 2022 at 07:48:51AM +0000, Corentin Labbe wrote:
> > > > Hello
> > > > 
> > > > 2 sunxi board still does not have ethernet working, orangepi 1+ and
> > > > orangepi 3.
> > > > This is due to the fact thoses boards have a PHY which need 2 regulators.
> > > 
> > > Why PHY make/module is it which is causing problems?
> > > 
> > 
> > The problem was stmmac support only one regulator for PHY.
> 
> I'm trying to understand the differences between the two different
> regulators. If you tell me what the PHY is, i might be able to find
> the data sheet, and then understand why two regulators are needed and
> if one needs to be controlled by the PHY driver, not the MDIO bus
> driver.

The schematic for the board is https://linux-sunxi.org/images/5/50/OrangePi_3_Schematics_v1.5.pdf
Which show a RTL8211E.