This is a note to let you know that I've just added the patch titled
arm64: dts: imx8mm-kontron: Fix connection type for VSC8531 RGMII PHY
to the 5.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-imx8mm-kontron-fix-connection-type-for-vsc8531-rgmii-phy.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0b28c41e3c951ea3d4f012cfa9da5ebd6512cf6e Mon Sep 17 00:00:00 2001
From: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
Date: Fri, 15 Oct 2021 14:48:40 +0200
Subject: arm64: dts: imx8mm-kontron: Fix connection type for VSC8531 RGMII PHY
From: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
commit 0b28c41e3c951ea3d4f012cfa9da5ebd6512cf6e upstream.
Previously we falsely relied on the PHY driver to unconditionally
enable the internal RX delay. Since the following fix for the PHY
driver this is not the case anymore:
commit 7b005a1742be ("net: phy: mscc: configure both RX and TX internal
delays for RGMII")
In order to enable the delay we need to set the connection type to
"rgmii-rxid". Without the RX delay the ethernet is not functional at
all.
Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
@@ -113,7 +113,7 @@
&fec1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
- phy-connection-type = "rgmii";
+ phy-connection-type = "rgmii-rxid";
phy-handle = <ðphy>;
status = "okay";
Patches currently in stable-queue which might be from frieder.schrempf@xxxxxxxxxx are
queue-5.14/arm64-dts-imx8mm-kontron-fix-polarity-of-reg_rst_eth2.patch
queue-5.14/arm64-dts-imx8mm-kontron-fix-connection-type-for-vsc8531-rgmii-phy.patch
queue-5.14/arm64-dts-imx8mm-kontron-make-sure-soc-and-dram-supply-voltages-are-correct.patch
queue-5.14/arm64-dts-imx8mm-kontron-set-lower-limit-of-vdd_snvs-to-800-mv.patch
queue-5.14/arm64-dts-imx8mm-kontron-fix-can-spi-clock-frequency.patch
