* [PATCH] ARC: axs10x - add Ethernet PHY description in .dts
@ 2016-03-15 9:29 Alexey Brodkin
2016-03-15 14:38 ` Sergei Shtylyov
0 siblings, 1 reply; 2+ messages in thread
From: Alexey Brodkin @ 2016-03-15 9:29 UTC (permalink / raw)
To: linux-snps-arc
Cc: Alexey Brodkin, Rob Herring, Phil Reid, David S. Miller,
linux-kernel, netdev, stable, #, 4.5.x
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 <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.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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ARC: axs10x - add Ethernet PHY description in .dts
2016-03-15 9:29 [PATCH] ARC: axs10x - add Ethernet PHY description in .dts Alexey Brodkin
@ 2016-03-15 14:38 ` Sergei Shtylyov
0 siblings, 0 replies; 2+ messages in thread
From: Sergei Shtylyov @ 2016-03-15 14:38 UTC (permalink / raw)
To: Alexey Brodkin, linux-snps-arc
Cc: Rob Herring, Phil Reid, David S. Miller, linux-kernel, netdev,
stable, #, 4.5.x
Hello.
On 3/15/2016 12:29 PM, Alexey Brodkin wrote:
> 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 <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.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 {
The naming is inconsistent with the "reg" prop specified, should be @1.
MBR, Sergei
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