lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Fri, 15 Oct 2021 10:16:07 -0700
From:   Florian Fainelli <>
To:     Vladimir Oltean <>,
        "David S . Miller" <>,
        Jakub Kicinski <>,
        Rob Herring <>,
        Shawn Guo <>, Andrew Lunn <>,
        Heiner Kallweit <>,
        Russell King <>,
        Vivien Didelot <>,
        Vladimir Oltean <>,
        Prasanna Vengateshan <>,
        Ansuel Smith <>,
        Alvin Šipraga <>
Subject: Re: [PATCH net-next 1/6] ARM: dts: imx6qp-prtwd3: update RGMII delays
 for sja1105 switch

On 10/13/21 3:23 PM, Vladimir Oltean wrote:
> In the new behavior, the sja1105 driver expects there to be explicit
> RGMII delays present on the fixed-link ports, otherwise it will complain
> that it falls back to legacy behavior, which is to apply RGMII delays
> incorrectly derived from the phy-mode string.
> In this case, the legacy behavior of the driver is to apply both RX and
> TX delays. To preserve that, add explicit 2 nanosecond delays, which are
> identical with what the driver used to add (a 90 degree phase shift).
> The delays from the phy-mode are ignored by new kernels (it's still
> RGMII as long as it's "rgmii*" something), and the explicit
> {rx,tx}-internal-delay-ps properties are ignored by old kernels, so the
> change works both ways.
> Signed-off-by: Vladimir Oltean <>

Reviewed-by: Florian Fainelli <>

Powered by blists - more mailing lists