arm64: dts: meson: g12a: x96-max: fix PHY deassert timing requirements

BugLink: https://bugs.launchpad.net/bugs/1910822
[ Upstream commit 3d07c3b3a886fefd583c1b485b5e4e3c4e2da493 ]

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: ed5e8f689154 ("arm64: dts: meson: g12a: x96-max: fix the Ethernet PHY reset line")
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/12506964ca5d5f936579a280ad0a7e7f9a0a2d4c.1607363522.git.stefan@agner.ch
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kelsey Skunberg <kelsey.skunberg@canonical.com>

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts
index 17155fb73fce977bf904e02e321962b2b0f4d11b..c48125bf9d1e3f3d088ddf263920f44f5528dbbe 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts
@@ -340,7 +340,7 @@
                eee-broken-1000t;
 
                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>;