netdev - [BUG] The genet is not working

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Date:   Thu, 24 Jan 2019 13:17:21 +0900
From:   Jaedon Shin <jaedon.shin@...il.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>
Subject: [BUG] The genet is not working

Hi,

The genet of Broadcom MIPS 40nm platforms with internal PHY isn't working
after v4.20-rc1, but 28nm ARM platforms or external PHY is working.

[    1.064000] bcmgenet 10430000.ethernet: configuring instance for internal PHY
[    1.068000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    1.196000] bcmgenet 10430000.ethernet eth0: Link is Down
[   11.076000] Waiting up to 110 more seconds for network.
[   21.088000] Waiting up to 100 more seconds for network.
[   31.100000] Waiting up to 90 more seconds for network.
[   41.112000] Waiting up to 80 more seconds for network.
[   51.124000] Waiting up to 70 more seconds for network.
[   61.136000] Waiting up to 60 more seconds for network.
[   71.148000] Waiting up to 50 more seconds for network.
[   81.160000] Waiting up to 40 more seconds for network.
[   91.172000] Waiting up to 30 more seconds for network.
[  101.184000] Waiting up to 20 more seconds for network.
[  111.196000] Waiting up to 10 more seconds for network.

I tried bisecting for this between v4.19 and v4.20-rc1, I found a problematic
commit 6e2d85ec0559 ("net: phy: Stop with excessive soft reset").

Thanks,
Jaedon