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

Commit e34d65696d ("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
Cc: stable@vger.kernel.org # 4.5
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Alexey Brodkin 2016-03-17 12:41:52 +03:00 committed by Vineet Gupta
parent 26cf9cc5d8
commit 667a490bdb
1 changed files with 8 additions and 0 deletions
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8
arch/arc/boot/dts/axs10x_mb.dtsi
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@ -47,6 +47,14 @@ ethernet@0x18000 {
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 {