Patch "ARC: [plat-axs10x] add Ethernet PHY description in .dts" has been added to the 4.5-stable tree

Patch "ARC: [plat-axs10x] add Ethernet PHY description in .dts" has been added to the 4.5-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ARC: [plat-axs10x] add Ethernet PHY description in .dts

to the 4.5-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arc-add-ethernet-phy-description-in-.dts.patch
and it can be found in the queue-4.5 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 667a490bdb6e27db0887d2ca515b907d6aa87118 Mon Sep 17 00:00:00 2001
From: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Date: Thu, 17 Mar 2016 12:41:52 +0300
Subject: ARC: [plat-axs10x] add Ethernet PHY description in .dts

From: Alexey Brodkin <Alexey.Brodkin@synopsys.com>

commit 667a490bdb6e27db0887d2ca515b907d6aa87118 upstream.

Commit e34d65696d2e ("stmmac: create of compatible mdio bus for stmmac
driver") broke DW GMAC functionality on ARC AXS10x boards:

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 <abrodkin@synopsys.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Phil Reid <preid@electromag.com.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arc/boot/dts/axs10x_mb.dtsi |    8 ++++++++
 1 file changed, 8 insertions(+)

--- 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";
+				phy1: ethernet-phy@1 {
+					reg = <1>;
+				};
+			};
 		};
 
 		ehci@0x40000 {


Patches currently in stable-queue which might be from Alexey.Brodkin@synopsys.com are

queue-4.5/arc-add-ethernet-phy-description-in-.dts.patch