netdev - Re: [PATCH] net: phy: realtek: fix RTL8211F interrupt mode

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Date:   Tue, 14 Nov 2017 21:34:14 +0900 (KST)
From:   David Miller <davem@...emloft.net>
To:     hkallweit1@...il.com
Cc:     andrew@...n.ch, f.fainelli@...il.com, netdev@...r.kernel.org,
        linux-amlogic@...ts.infradead.org, Shengzhou.Liu@...escale.com,
        jbrunet@...libre.com
Subject: Re: [PATCH] net: phy: realtek: fix RTL8211F interrupt mode

From: Heiner Kallweit <hkallweit1@...il.com>
Date: Sun, 12 Nov 2017 16:16:04 +0100

> After commit b94d22d94ad22 "ARM64: dts: meson-gx: add external PHY
> interrupt on some platforms" ethernet stopped working on my Odroid-C2
> which has a RTL8211F phy.
> 
> It turned out that no interrupts were triggered. Further analysis
> showed the register INER can't be altered on page 0.
> Because register INSR needs to be accessed via page 0xa43 I assumed
> that register INER needs to be accessed via some page too.
> Some brute force check resulted in page 0xa42 being the right one.
> 
> With this patch the phy is working properly in interrupt mode.
> 
> Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>

Applied.