* [PATCH 4.5 155/238] ARC: [plat-axs10x] add Ethernet PHY description in .dts
[not found] <20160410183456.398741366@linuxfoundation.org>
@ 2016-04-10 18:35 ` Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2016-04-10 18:35 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexey Brodkin, Rob Herring,
Phil Reid, David S. Miller, netdev, Sergei Shtylyov, Vineet Gupta
4.5-stable review patch. If anyone has any objections, please let me know.
------------------
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 {
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2016-04-10 18:35 ` [PATCH 4.5 155/238] ARC: [plat-axs10x] add Ethernet PHY description in .dts Greg Kroah-Hartman
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