From: Holger Assmann <h.assmann@xxxxxxxxxxxxxx>
[ Upstream commit 42a31ac6698681363363d48335559d212a26a7ca ]
The KSZ9031 PHY skew timings for rxc/txc, originally set to achieve
the desired phase shift between clock- and data-signal, now trigger a
kernel warning when used in rgmii-id mode:
*-skew-ps values should be used only with phy-mode = "rgmii"
This is because commit bcf3440c6dd7 ("net: phy: micrel: add phy-mode
support for the KSZ9031 PHY") now configures own timings when
phy-mode = "rgmii-id". Device trees wanting to set their own delays
should use phy-mode "rgmii" instead as the warning prescribes.
The "standard" timings now used with "rgmii-id" work fine on this
board, so drop the explicit timings in the device tree and thereby
silence the warning.
Fixes: 666b5ca85cd3 ("ARM: dts: stm32: add STM32MP1-based Linux Automation MC-1 board")
Signed-off-by: Holger Assmann <h.assmann@xxxxxxxxxxxxxx>
Acked-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
Signed-off-by: Alexandre Torgue <alexandre.torgue@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
index 5700e6b700d36..b85025d009437 100644
--- a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
@@ -121,8 +121,6 @@ ethphy: ethernet-phy@3 { /* KSZ9031RN */
reset-gpios = <&gpiog 0 GPIO_ACTIVE_LOW>; /* ETH_RST# */
interrupt-parent = <&gpioa>;
interrupts = <6 IRQ_TYPE_EDGE_FALLING>; /* ETH_MDINT# */
- rxc-skew-ps = <1860>;
- txc-skew-ps = <1860>;
reset-assert-us = <10000>;
reset-deassert-us = <300>;
micrel,force-master;
--
2.25.1
