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Re: [PATCH] DSA support for Micrel KSZ8895

From Pavel Machek <pavel@ucw.cz>
Newsgroups linux.kernel
Subject Re: [PATCH] DSA support for Micrel KSZ8895
Date 2017-08-29 09:50 +0200
Message-ID <ujJrz-8de-5@gated-at.bofh.it> (permalink)
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On Mon 2017-08-28 16:09:27, Andrew Lunn wrote:
> > I may be confused here, but AFAICT:
> > 
> > 1) Yes, it has standard layout when accessed over MDIO. 
> 
> 
> Section 4.8 of the datasheet says:
> 
> 	All the registers defined in this section can be also accessed
> 	via the SPI interface.
> 
> Meaning all PHY registers can be access via the SPI interface. So you
> should be able to make a standard Linux MDIO bus driver which performs
> SPI reads.

As far as I can tell (and their driver confirms) -- yes, all those
registers can be accessed over the SPI, they are just shuffled
around... hence MDIO emulation code. I copied it from their code (see
the copyrights) so no, I don't believe there's nicer solution.

Best regards,

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Re: [PATCH] DSA support for Micrel KSZ8895 Andrew Lunn <andrew@lunn.ch> - 2017-08-27 18:40 +0200
  Re: [PATCH] DSA support for Micrel KSZ8895 Pavel Machek <pavel@ucw.cz> - 2017-08-28 09:10 +0200
    Re: [PATCH] DSA support for Micrel KSZ8895 Andrew Lunn <andrew@lunn.ch> - 2017-08-28 16:10 +0200
      Re: [PATCH] DSA support for Micrel KSZ8895 Maxim Uvarov <muvarov@gmail.com> - 2017-08-28 16:50 +0200
        Re: [PATCH] DSA support for Micrel KSZ8895 Pavel Machek <pavel@ucw.cz> - 2017-08-29 09:50 +0200
          Re: [PATCH] DSA support for Micrel KSZ8895 Andrew Lunn <andrew@lunn.ch> - 2017-08-29 14:30 +0200
            Re: [PATCH] DSA support for Micrel KSZ8895 Pavel Machek <pavel@ucw.cz> - 2017-08-29 23:20 +0200
              Re: [PATCH] DSA support for Micrel KSZ8895 Florian Fainelli <f.fainelli@gmail.com> - 2017-08-29 23:30 +0200
                Re: [PATCH] DSA support for Micrel KSZ8895 Maxim Uvarov <muvarov@gmail.com> - 2017-08-30 12:10 +0200
      Re: [PATCH] DSA support for Micrel KSZ8895 Pavel Machek <pavel@ucw.cz> - 2017-08-29 09:50 +0200
        RE: [PATCH] DSA support for Micrel KSZ8895 <Tristram.Ha@microchip.com> - 2017-08-30 23:40 +0200
          Re: [PATCH] DSA support for Micrel KSZ8895 Andrew Lunn <andrew@lunn.ch> - 2017-08-31 00:10 +0200
          Re: [PATCH] DSA support for Micrel KSZ8895 Pavel Machek <pavel@ucw.cz> - 2017-09-01 14:20 +0200
            Re: [PATCH] DSA support for Micrel KSZ8895 Florian Fainelli <f.fainelli@gmail.com> - 2017-09-02 00:20 +0200
              Re: [PATCH] DSA support for Micrel KSZ8895 Pavel Machek <pavel@ucw.cz> - 2017-09-02 17:50 +0200
          Re: [PATCH] DSA support for Micrel KSZ8895 Maxim Uvarov <muvarov@gmail.com> - 2017-09-06 11:20 +0200
            RE: [PATCH] DSA support for Micrel KSZ8895 <Tristram.Ha@microchip.com> - 2017-09-06 18:50 +0200
              Re: [PATCH] DSA support for Micrel KSZ8895 Andrew Lunn <andrew@lunn.ch> - 2017-09-06 19:10 +0200

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