From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Brodkin Subject: [PATCH] ARC: axs10x - add Ethernet PHY description in .dts Date: Tue, 15 Mar 2016 12:29:10 +0300 Message-ID: <1458034150-10766-1-git-send-email-abrodkin@synopsys.com> Cc: Alexey Brodkin , Rob Herring , Phil Reid , "David S. Miller" , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, stable@vger.kernel.org, #@synopsys.com, 4.5.x@synopsys.com To: linux-snps-arc@lists.infradead.org Return-path: Received: from smtprelay4.synopsys.com ([198.182.47.9]:53313 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751911AbcCOJ3S (ORCPT ); Tue, 15 Mar 2016 05:29:18 -0400 Sender: netdev-owner@vger.kernel.org List-ID: Following commit broke DW GMAC functionality on AXS10x boards: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e34d65696d2ef13dc32f2a162556c86c461ed763 That's what happens on eth0 up: --------------------------->8------------------------ libphy: PHY stmmac-0:ffffffff not found eth0: Could not attach to PHY stmmac_open: Cannot attach to PHY (error: -19) --------------------------->8------------------------ Simplest solution is to add PHY description in board's .dts. And so we do here. Signed-off-by: Alexey Brodkin Cc: Rob Herring Cc: Phil Reid Cc: David S. Miller Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Cc: stable@vger.kernel.org # 4.5.x --- arch/arc/boot/dts/axs10x_mb.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi index 44a578c..04b999e 100644 --- a/arch/arc/boot/dts/axs10x_mb.dtsi +++ b/arch/arc/boot/dts/axs10x_mb.dtsi @@ -47,6 +47,14 @@ clocks = <&apbclk>; clock-names = "stmmaceth"; max-speed = <100>; + mdio0 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "snps,dwmac-mdio"; + phy0: ethernet-phy@0 { + reg = <1>; + }; + }; }; ehci@0x40000 { -- 2.5.0