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Re: [PATCH v2 3/4] net: phy: realtek: add disable RX internal delay mode

From Andrew Lunn <andrew@lunn.ch>
Newsgroups linux.kernel
Subject Re: [PATCH v2 3/4] net: phy: realtek: add disable RX internal delay mode
Date 2017-08-24 15:20 +0200
Message-ID <ui0db-742-13@gated-at.bofh.it> (permalink)
References <uh8FP-5u6-1@gated-at.bofh.it> <uh8Pv-5yo-7@gated-at.bofh.it> <uhhJ8-35i-11@gated-at.bofh.it> <uhVnc-3SH-3@gated-at.bofh.it>
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> >Do we know that the TX lines do have a delay after making this change?
> >We need to be careful here. We will get into a mess if this is
> >actually RGMII not RGMII_TXID, and somebody designs a board which
> >needs RGMII-TXID.
> 
> In fact I'm not sure -- I'm even not sure that after making this change
> there's no TX delay. The change is totally not documented, so I choose
> to use a custom property in v1.

Can you get in touch with Realtek and ask? Or can you get a hardware
guy to do some measurements?

Thanks
    Andrew

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Thread

[PATCH v2 0/4] Workaround broken RTL8211E on some Pine64+ boards Icenowy Zheng <icenowy@aosc.io> - 2017-08-22 06:10 +0200
  [PATCH v2 4/4] arm64: allwinner: a64: disable the RTL8211E internal RX delay on Pine64+ Icenowy Zheng <icenowy@aosc.io> - 2017-08-22 06:10 +0200
  [PATCH v2 2/4] net: phy: realtek: change macro name for page select register Icenowy Zheng <icenowy@aosc.io> - 2017-08-22 06:10 +0200
  [PATCH v2 1/4] net: stmmac: dwmac-sun8i: support RGMII modes with PHY internal delay Icenowy Zheng <icenowy@aosc.io> - 2017-08-22 06:10 +0200
  [PATCH v2 3/4] net: phy: realtek: add disable RX internal delay mode Icenowy Zheng <icenowy@aosc.io> - 2017-08-22 06:20 +0200
    Re: [PATCH v2 3/4] net: phy: realtek: add disable RX internal delay  mode Andrew Lunn <andrew@lunn.ch> - 2017-08-22 15:50 +0200
      Re: [PATCH v2 3/4] net: phy: realtek: add disable RX internal delay  mode icenowy@aosc.io - 2017-08-24 10:10 +0200
        Re: [PATCH v2 3/4] net: phy: realtek: add disable RX internal delay  mode Andrew Lunn <andrew@lunn.ch> - 2017-08-24 15:20 +0200

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