linux-kernel - Re: [PATCH 0/6] arm64: add ethernet to orange pi 3

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Date:   Mon, 9 May 2022 17:24:26 +0200
From:   LABBE Corentin <clabbe@...libre.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     alexandre.torgue@...s.st.com, broonie@...nel.org,
        calvin.johnson@....nxp.com, davem@...emloft.net,
        edumazet@...gle.com, hkallweit1@...il.com,
        jernej.skrabec@...il.com, joabreu@...opsys.com,
        krzysztof.kozlowski+dt@...aro.org, kuba@...nel.org,
        lgirdwood@...il.com, linux@...linux.org.uk, pabeni@...hat.com,
        peppe.cavallaro@...com, robh+dt@...nel.org, samuel@...lland.org,
        wens@...e.org, netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...ts.linux.dev
Subject: Re: [PATCH 0/6] arm64: add ethernet to orange pi 3

Le Mon, May 09, 2022 at 05:19:16PM +0200, Andrew Lunn a écrit :
> 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 écrit :
> > > 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.