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    Subject[PATCH 4.17 134/324] ARM64: dts: meson-axg: fix ethernet stability issue
    Date
    4.17-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Jerome Brunet <jbrunet@baylibre.com>

    [ Upstream commit 6d28d577510f1a51f7ffbe830fdbf42077e0058b ]

    Like the odroid-c2 and wetek, the s400 uses the RTL8211F and seems to
    suffer from the kind of stability issue.

    Doing an iperf3 download test, we can see a significant number of LPI
    interrupts on the tx path. After a short while (5 to 15 seconds), the
    network connection dies. If using rootfs over NFS, the connection may
    also break during the boot sequence.

    We still don't have a real explanation for this problem so let's disable
    EEE once again.

    Fixes: f6f6ac914b82 ("ARM64: dts: meson-axg: enable ethernet for A113D S400 board")
    Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
    Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
    Signed-off-by: Kevin Hilman <khilman@baylibre.com>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 15 ++++++++++++++-
    1 file changed, 14 insertions(+), 1 deletion(-)

    --- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
    +++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
    @@ -19,9 +19,22 @@

    &ethmac {
    status = "okay";
    - phy-mode = "rgmii";
    pinctrl-0 = <&eth_rgmii_y_pins>;
    pinctrl-names = "default";
    + phy-handle = <&eth_phy0>;
    + phy-mode = "rgmii";
    +
    + mdio {
    + compatible = "snps,dwmac-mdio";
    + #address-cells = <1>;
    + #size-cells = <0>;
    +
    + eth_phy0: ethernet-phy@0 {
    + /* Realtek RTL8211F (0x001cc916) */
    + reg = <0>;
    + eee-broken-1000t;
    + };
    + };
    };

    &uart_A {

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