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ARM: dts: meson: fix PHY deassert timing requirements 

According to the datasheet (Rev. 1.9) the RTL8211F requires at least
72ms "for internal circuits settling time" before accessing the PHY
registers. On similar boards with the same PHY this fixes an issue where
Ethernet link would not come up when using ip link set down/up.

Fixes: a2c6e82e53 ("ARM: dts: meson: switch to the generic Ethernet PHY reset bindings")
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> # on Odroid-C1+
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/ff78772b306411e145769c46d4090554344db41e.1607363522.git.stefan@agner.ch
This commit is contained in:
Stefan Agner 2020-12-07 18:58:01 +01:00 committed by Kevin Hilman
parent c183c406c4
commit 656ab1bdcd
2 changed files with 2 additions and 2 deletions
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2
arch/arm/boot/dts/meson8b-odroidc1.dts
View File

@ -224,7 +224,7 @@ eth_phy: ethernet-phy@0 {
reg = <0>;
reset-assert-us = <10000>;
reset-deassert-us = <30000>;
reset-deassert-us = <80000>;
reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
interrupt-parent = <&gpio_intc>;

2
arch/arm/boot/dts/meson8m2-mxiii-plus.dts
View File

@ -81,7 +81,7 @@ eth_phy0: ethernet-phy@0 {
reg = <0>;
reset-assert-us = <10000>;
reset-deassert-us = <30000>;
reset-deassert-us = <80000>;
reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
};
};