mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-11 12:44:49 -04:00
Code Issues Packages Projects Releases Wiki Activity

ARM: dts: stm32: lxa-mc1: Fix kernel warning about PHY delays

Browse Source 
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 bcf3440c6d ("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: 666b5ca85c ("ARM: dts: stm32: add STM32MP1-based Linux Automation MC-1 board")
Signed-off-by: Holger Assmann <h.assmann@pengutronix.de>
Acked-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
This commit is contained in:
Holger Assmann
2020-08-07 17:03:56 +02:00
committed by Alexandre Torgue
parent 4e0ec51f8b
commit 42a31ac669
1 changed files with 0 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
View File

@@ -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;