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arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements
[ Upstream commit 1c74125 ] According to the datasheet (Rev. 1.9) the RTL8211F requires at least 72ms "for internal circuits settling time" before accessing the PHY registers. This fixes an issue where the Ethernet link doesn't come up when using ip link set down/up: [ 29.360965] meson8b-dwmac ff3f0000.ethernet eth0: Link is Down [ 34.569012] meson8b-dwmac ff3f0000.ethernet eth0: PHY [0.0:00] driver [RTL8211F Gigabit Ethernet] (irq=31) [ 34.676732] meson8b-dwmac ff3f0000.ethernet: Failed to reset the dma [ 34.678874] meson8b-dwmac ff3f0000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed [ 34.687850] meson8b-dwmac ff3f0000.ethernet eth0: stmmac_open: Hw setup failed Fixes: 658e412 ("arm64: dts: meson: g12b: odroid-n2: add 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/df3f5c4fc6e43c55429fd3662a636036a21eed49.1607363522.git.stefan@agner.ch Signed-off-by: Sasha Levin <sashal@kernel.org>
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