| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.20 29/60] ARM: dts: am335x-evm: Fix PHY mode for ethernet | Date | Wed, 13 Mar 2019 15:09:50 -0400 |
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From: Peter Ujfalusi <peter.ujfalusi@ti.com>
[ Upstream commit 37685f6a63eeca2135d1f704e7638409a071b1f6 ]
The PHY must add both tx and rx delay and not only on the tx clock. The board uses AR8031_AL1A PHY where the rx delay is enabled by default, the tx dealy is disabled.
The reason why rgmii-txid worked because the rx delay was not disabled by the driver so essentially we ended up with rgmii-id PHY mode.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/arm/boot/dts/am335x-evm.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index 98ec9c3e49ba..8399bc983416 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -729,7 +729,7 @@ &cpsw_emac0 { phy-handle = <ðphy0>; - phy-mode = "rgmii-txid"; + phy-mode = "rgmii-id"; }; &tscadc { -- 2.19.1
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