From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1313CEDEC5E for ; Wed, 13 Sep 2023 14:30:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237494AbjIMOaZ (ORCPT ); Wed, 13 Sep 2023 10:30:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38076 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230467AbjIMOaY (ORCPT ); Wed, 13 Sep 2023 10:30:24 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2A2390; Wed, 13 Sep 2023 07:30:20 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0450DC433C7; Wed, 13 Sep 2023 14:30:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694615420; bh=+DH1aDUKeb2gyoq8PZbX/q8CQn1YPVrrRzxuKGgwWmI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mxslrVoo+v4MpIK6NSRcFfvKIz7MIrFmFqc5SXPWL1myeHnHMNc2qJmpDCi+0Ec/3 DcBiABApDix0/1QohXIuvIYdH/F0vf07Q/cq2vh8A7TJYnjGByi3raRl/hfnroQW3o e/whUUh83JKCGv151I8y3k0/jFWAacoXpQO1Rj6IIMaKpw/Sx+7IrOeGSjsniDQTqk I7J0DK/4Mr1dBNemYn8f9tbGN/aJfmUSlJ42SRIvK5Vy+BNNv2kfElhLNUhnKN+4us 44vcEowl8F1R2i3+UXlTdPm/dJCTcWFxE0vVtZFF1RMMEKmkvBRqbmm3Fy5EvbdLNj J2LU6LxYql4ow== Date: Wed, 13 Sep 2023 15:30:14 +0100 From: Conor Dooley To: MD Danish Anwar Cc: Andrew Lunn , Roger Quadros , Conor Dooley , Krzysztof Kozlowski , Rob Herring , Paolo Abeni , Jakub Kicinski , Eric Dumazet , "David S. Miller" , Vignesh Raghavendra , Simon Horman , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, netdev@vger.kernel.org, srk@ti.com, r-gunasekaran@ti.com, Roger Quadros Subject: Re: [PATCH net-next v3 1/2] dt-bindings: net: Add documentation for Half duplex support. Message-ID: <20230913-frisbee-backlog-17391b962c13@spud> References: <20230913091011.2808202-1-danishanwar@ti.com> <20230913091011.2808202-2-danishanwar@ti.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="zhD3bkOP9US8+Azu" Content-Disposition: inline In-Reply-To: <20230913091011.2808202-2-danishanwar@ti.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org --zhD3bkOP9US8+Azu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 13, 2023 at 02:40:10PM +0530, MD Danish Anwar wrote: > In order to support half-duplex operation at 10M and 100M link speeds, the > PHY collision detection signal (COL) should be routed to ICSSG > GPIO pin (PRGx_PRU0/1_GPI10) so that firmware can detect collision signal > and apply the CSMA/CD algorithm applicable for half duplex operation. A DT > property, "ti,half-duplex-capable" is introduced for this purpose. If > board has PHY COL pin conencted to PRGx_PRU1_GPIO10, this DT property can > be added to eth node of ICSSG, MII port to support half duplex operation = at > that port. >=20 > Reviewed-by: Roger Quadros > Signed-off-by: MD Danish Anwar Acked-by: Conor Dooley Thanks, Conor. > --- > Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml | 7 +++++++ > 1 file changed, 7 insertions(+) >=20 > diff --git a/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml b= /Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml > index 836d2d60e87d..229c8f32019f 100644 > --- a/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml > +++ b/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml > @@ -107,6 +107,13 @@ properties: > phandle to system controller node and register offset > to ICSSG control register for RGMII transmit delay > =20 > + ti,half-duplex-capable: > + type: boolean > + description: > + Indicates that the PHY output pin COL is routed to ICSSG G= PIO pin > + (PRGx_PRU0/1_GPIO10) as input so that the ICSSG MII port is > + capable of half duplex operations. > + > required: > - reg > anyOf: > --=20 > 2.34.1 >=20 --zhD3bkOP9US8+Azu Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZQHHdgAKCRB4tDGHoIJi 0mvUAP4qy5TJEF8GK7qnltjQgB5hD3d27b1gsOqjmvxsAzzYPQEAqxYmzjKrQCAs 8rF1NkKlICXrKxlH016cCoGBjia5CwI= =8yEv -----END PGP SIGNATURE----- --zhD3bkOP9US8+Azu--