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Date:   Tue, 10 Jan 2017 01:37:46 +0000
From:   "Kwok, WingMan" <>
To:     Andrew Lunn <>
CC:     "Karicheri, Muralidharan" <>,
        "" <>
Subject: RE: Marvell Phy (1510) issue since v4.7 kernel

> -----Original Message-----
> From: Andrew Lunn []
> Sent: Monday, January 09, 2017 6:56 PM
> To: Kwok, WingMan
> Cc: Karicheri, Muralidharan;
> Subject: Re: Marvell Phy (1510) issue since v4.7 kernel
> > But when kernel is reboot into u-boot, "mii read 0 0" shows
> > 0x1000, ie. bit 11 is 0, and still the phy auto-nego times out.
> O.K, not so simple then.
> I suggest you dump all the registers, in both the good and bad state,
> and see how they differ.
>     Andrew

From Marvell's brief description,
it seems that 88E1510/1518 don't support fiber. Only 88E1512 does. In
that case, the fiber support patch is not applicable to 88E1510/1518.

I investigate a little more of the u-boot auto-nego time out
problem after reboot and found that the problem is caused by
marvell_read_status() which leaves the fiber page out because the
phydev->link is TRUE. But if fiber is not applicable to 88E1510/1518,
this is an invalid check.

Any suggestion?


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