From: Andrew Lunn <andrew@lunn•ch>
To: Biao Huang <biao.huang@mediatek•com>
Cc: davem@davemloft•net, robh+dt@kernel•org,
honghui.zhang@mediatek•com, yt.shen@mediatek•com,
liguo.zhang@mediatek•com, mark.rutland@arm•com,
nelson.chang@mediatek•com, matthias.bgg@gmail•com,
netdev@vger•kernel.org, devicetree@vger•kernel.org,
linux-kernel@vger•kernel.org,
linux-arm-kernel@lists•infradead.org,
linux-mediatek@lists•infradead.org, joabreu@synopsys•com
Subject: Re: [v4, PATCH 2/2] dt-binding: mediatek-dwmac: add binding document for MediaTek MT2712 DWMAC
Date: Tue, 20 Nov 2018 15:49:05 +0100 [thread overview]
Message-ID: <20181120144905.GD18335@lunn.ch> (raw)
In-Reply-To: <1542705696-18507-3-git-send-email-biao.huang@mediatek.com>
> +Optional properties:
> +- mediatek,tx-delay: TX clock delay macro value. Range is 0~31. Default is 0.
> + It should be defined for rgmii/rgmii-rxid/mii interface.
> +- mediatek,rx-delay: RX clock delay macro value. Range is 0~31. Default is 0.
> + It should be defined for rgmii/rgmii-txid/mii/rmii interface.
> +- mediatek,fine-tune: boolean property, if present indicates that fine delay
> + is selected for rgmii interface.
> + If present, tx-delay/rx-delay is 170+/-50ps per stage.
> + Else tx-delay/rx-delay of coarse delay macro is 0.55+/-0.2ns per stage.
> + This property do not apply to non-rgmii PHYs.
> + Only coarse-tune delay is supported for mii/rmii PHYs.
Didn't Rob say to express the delay in pS, and have the driver convert
that to values to put into registers. That is what i would prefer.
Andrew
prev parent reply other threads:[~2018-11-20 14:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-20 9:21 [v4, PATCH 0/2] add Ethernet driver support for mt2712 Biao Huang
2018-11-20 9:21 ` [v4, PATCH 1/2] net:stmmac: dwmac-mediatek: add " Biao Huang
2018-11-20 9:21 ` [v4, PATCH 2/2] dt-binding: mediatek-dwmac: add binding document for MediaTek MT2712 DWMAC Biao Huang
2018-11-20 14:49 ` Andrew Lunn [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181120144905.GD18335@lunn.ch \
--to=andrew@lunn$(echo .)ch \
--cc=biao.huang@mediatek$(echo .)com \
--cc=davem@davemloft$(echo .)net \
--cc=devicetree@vger$(echo .)kernel.org \
--cc=honghui.zhang@mediatek$(echo .)com \
--cc=joabreu@synopsys$(echo .)com \
--cc=liguo.zhang@mediatek$(echo .)com \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=linux-mediatek@lists$(echo .)infradead.org \
--cc=mark.rutland@arm$(echo .)com \
--cc=matthias.bgg@gmail$(echo .)com \
--cc=nelson.chang@mediatek$(echo .)com \
--cc=netdev@vger$(echo .)kernel.org \
--cc=robh+dt@kernel$(echo .)org \
--cc=yt.shen@mediatek$(echo .)com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox