| Message ID | a899168379ce425b35eea4a369504fd75977bd71.1606828668.git.stefan@agner.ch (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,1/5] arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements | expand |
On Tue, Dec 1, 2020 at 2:21 PM Stefan Agner <stefan@agner.ch> wrote: > > According to the datasheet (Rev. 1.9) the RTL8211F requires at least > 72ms "for internal circuits settling time" before accessing the PHY > egisters. 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: 2cd2310fca4c ("arm64: dts: meson-g12b-ugoos-am6: add initial device-tree") > Signed-off-by: Stefan Agner <stefan@agner.ch> with the "registers" typo above fixed: Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi index 2802ddbb83ac..feb088504740 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi @@ -264,7 +264,7 @@ external_phy: ethernet-phy@0 { max-speed = <1000>; reset-assert-us = <10000>; - reset-deassert-us = <30000>; + reset-deassert-us = <80000>; reset-gpios = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; interrupt-parent = <&gpio_intc>;
According to the datasheet (Rev. 1.9) the RTL8211F requires at least 72ms "for internal circuits settling time" before accessing the PHY egisters. 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: 2cd2310fca4c ("arm64: dts: meson-g12b-ugoos-am6: add initial device-tree") Signed-off-by: Stefan Agner <stefan@agner.ch> --- arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)