[PATCH 0/2] arm64: dts: rockchip: fix Ethernet PHY on Theobroma PX30 devices
Quentin Schulz
foss+kernel at 0leil.net
Mon Feb 2 02:27:24 PST 2026
This removes the reliance on the bootloader setting up the Ethernet PHY
for the Linux kernel to be able to use Ethernet.
This is due to the HW default of the PHY reset line being active and the
MDIO auto-detection mechanism not controlling a PHY's reset line such
that we need to hardcode the PHY ID in the compatible property for it to
be usable by the kernel, regardless of what the bootloader is doing.
We only ever had one PHY (DP83825) for both devices, so it's fine to
hardcode this way.
Signed-off-by: Quentin Schulz <quentin.schulz at cherry.de>
---
Quentin Schulz (2):
arm64: dts: rockchip: fix Ethernet PHY not found on PX30 Cobra
arm64: dts: rockchip: fix Ethernet PHY not found on PX30 Ringneck
arch/arm64/boot/dts/rockchip/px30-cobra.dtsi | 2 +-
arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
---
base-commit: 4d310797262f0ddf129e76c2aad2b950adaf1fda
change-id: 20260130-px30-eth-phy-676fa181e116
Best regards,
--
Quentin Schulz <quentin.schulz at cherry.de>
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