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SubjectRE: [PATCH 2/3] net: ethernet: add c45 PHY support in MDIO read/write functions.
>> >On Fri, Feb 22, 2019 at 08:12:42PM +0000, Parshuram Thombare wrote:
>> >> This patch modify MDIO read/write functions to support
>> >> communication with C45 PHY in Cadence ethernet controller driver.
>> >
>> >Hi Parshuram
>> >
>> >Are all versions of the MDIO controller capable of doing C45?
>> >
>> > Andrew
>> Now driver support c22 and c45 PHY.
>> Are you suggesting to add check for C45 PHY using is_c45 in phydev ?
>You are unconditionally supporting C45. Are there versions of the hardware which
>don't actually support C45? You have this endless loop:
There is controller which don't support C45. I will add check for that using is_c45.
>+ /* wait for end of transfer */
>+ while (!MACB_BFEXT(IDLE, macb_readl(bp, NSR)))
>+ cpu_relax();
>If there is hardware which does not support C45, will this loop forever?
> Andrew
Yes, this bit is supposed to be set. I will add timeout here.

Parshuram Thombare

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