u-boot/arch/arm/dts/r8a779g0-white-hawk-u-boot.dtsi
Marek Vasut 455e66bc59 arm64: renesas: Disable AVB1 and AVB2 on R8A779G0 V4H White Hawk board
The U-Boot is currently not capable of handling ethernet-phy-ieee802.3-c45
PHYs correctly, and also does not handle MDIO bus wide reset-gpios property.
Until proper C45 PHY support lands in U-Boot, disable AVB1/AVB2 interfaces.
This only disables the two MACs with 88Q2110/88Q2112 100/1000BASE-T1 PHYs
on ethenet sub-board, the main board AVB0 ethernet is unaffected.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2024-12-08 23:07:34 +01:00

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Text

// SPDX-License-Identifier: GPL-2.0
/*
* Device Tree Source extras for U-Boot for the White Hawk board
*
* Copyright (C) 2021 Renesas Electronics Corp.
*/
#include "r8a779g0-u-boot.dtsi"
/ {
aliases {
spi0 = &rpc;
};
};
&avb1 {
status = "disabled";
};
&avb2 {
status = "disabled";
};
&rpc {
flash@0 {
spi-tx-bus-width = <1>;
spi-rx-bus-width = <1>;
};
};