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[fix] Add a patch made to fix ethernet for pine64+ (#1576)

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Sébastien Lucas 2019-09-24 12:18:13 +02:00 committed by Igor Pečovnik
parent 6727c50d7b
commit 24aeccc77a
1 changed files with 33 additions and 0 deletions
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33
patch/kernel/sunxi-dev/0001-arm64-pine64-plus-add-PHY-regulator-delay.patch Normal file
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@ -0,0 +1,33 @@
From bb0516f4d03ffe9bcc06f840e477ea665af94e9d Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Sun, 25 Aug 2019 14:40:10 +0200
Subject: [PATCH] arm64: dts: allwinner: a64: pine64-plus: Add PHY regulator
delay
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")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
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>;
};
};
+
+&reg_dc1sw {
+ regulator-enable-ramp-delay = <100000>;
+};
--
2.23.0