Messages in this thread | | | Subject | Re: [PATCH net-next v2 3/4] dt-bindings: net: Add RGMII internal delay for DP83869 | From | Dan Murphy <> | Date | Wed, 20 May 2020 12:20:31 -0500 |
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Andrew/Florian
On 5/20/20 11:43 AM, Andrew Lunn wrote: >> I am interested in knowing where that is documented. I want to RTM I >> grepped for a few different words but came up empty > Hi Dan > > It probably is not well documented, but one example would be > > Documentation/devicetree/bindings/net/ethernet-controller.yaml > > says: > > # RX and TX delays are added by the MAC when required > - rgmii > > # RGMII with internal RX and TX delays provided by the PHY, > # the MAC should not add the RX or TX delays in this case > - rgmii-id > > # RGMII with internal RX delay provided by the PHY, the MAC > # should not add an RX delay in this case > - rgmii-rxid > > # RGMII with internal TX delay provided by the PHY, the MAC > # should not add an TX delay in this case > > Andrew
OKI I read that. I also looked at a couple other drivers too.
I am wondering if rx-internal-delay and tx-internal-delay should become a common property like tx/rx fifo-depth
And properly document how to use it or at least the expectation on use.
Dan
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