Depending on kernel and bootloader configuration, it's possible that
Realtek ethernet PHY isn't powered on properly. It needs some time
before it can be used.
Fix that by adding 100ms ramp delay to regulator responsible for
powering PHY.
Fixes: 94dcfdc77fc5 ("arm64: allwinner: pine64-plus: Enable dwmac-sun8i")
Suggested-by: Ondrej Jirman <[email protected]>
Signed-off-by: Jernej Skrabec <[email protected]>
---
arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
index 24f1aac366d6..9612a34c1762 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
@@ -63,3 +63,7 @@
reg = <1>;
};
};
+
+®_dc1sw {
+ regulator-enable-ramp-delay = <100000>;
+};
--
2.23.0
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