[U-Boot] [PATCH] net: phy: micrel: Allow KSZ8xxx and KSZ90x1 to be used together

Joe Hershberger joe.hershberger at ni.com
Wed Mar 6 20:24:36 UTC 2019


On Wed, Mar 6, 2019 at 6:48 AM James Byrne
<james.byrne at origamienergy.com> wrote:
>
> Commit d397f7c45b0b ("net: phy: micrel: Separate KSZ9000 drivers from
> KSZ8000 drivers") separated the KSZ8xxx and KSZ90x1 drivers and warns
> that you shouldn't select both of them due to a device ID clash between
> the KSZ9021 and the KS8721, asserting that "it is highly unlikely for a
> system to contain both a KSZ8000 and a KSZ9000 PHY". Unfortunately
> boards like the SAMA5D3xEK do contain both types of PHY, but fortunately
> the Linux Micrel PHY driver provides a solution by using different PHY
> ID and mask values to distinguish these chips.
>
> This commit contains the following changes:
>
> - The PHY ID and mask values for the KSZ9021 and the KS8721 now match
> those used by the Linux driver.
> - The warnings about not enabling both drivers have been removed.
> - The description for PHY_MICREL_KSZ8XXX has been corrected (these are
> 10/100 PHYs, not GbE PHYs).
> - PHY_MICREL_KSZ9021 and PHY_MICREL_KSZ9031 no longer select PHY_GIGE
> since this is selected by PHY_MICREL_KSZ90X1.
> - All of the relevant defconfig files have been updated now that
> PHY_MICREL_KSZ8XXX does not default to 'Y'.
>
> Signed-off-by: James Byrne <james.byrne at origamienergy.com>

Acked-by: Joe Hershberger <joe.hershberger at ni.com>


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