From mboxrd@z Thu Jan 1 00:00:00 1970 From: davem@davemloft.net (David Miller) Date: Tue, 14 Nov 2017 21:34:14 +0900 (KST) Subject: [PATCH] net: phy: realtek: fix RTL8211F interrupt mode In-Reply-To: <66991733-9d1a-dbd2-9857-bba1ffca1cf8@gmail.com> References: <66991733-9d1a-dbd2-9857-bba1ffca1cf8@gmail.com> Message-ID: <20171114.213414.1380323996609297743.davem@davemloft.net> To: linus-amlogic@lists.infradead.org List-Id: linus-amlogic.lists.infradead.org From: Heiner Kallweit 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 Applied.