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39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 7d8355053316d3f760a5ac14156e77e27aa5f6d5 Mon Sep 17 00:00:00 2001
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From: Christian Hewitt <christianshewitt@gmail.com>
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Date: Tue, 25 Oct 2022 14:24:21 +0000
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Subject: [PATCH 04/25] BACKPORT: arm64: dts: meson: nanopi-k2: readd PHY reset
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properties
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The sync of device-tree/bindings in 11a48a5a18c6 ("Linux 5.6-rc2") causes
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Ethernet to break on some GXBB boards; the PHY seems to need proper reset
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timing to function in u-boot and Linux. Re-add the old PHY reset binding
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for dwmac until we support new bindings in the PHY node. This borrows the
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same fix applied to the Odroid C2 board [0].
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[0] https://lists.denx.de/pipermail/u-boot/2021-April/446658.html
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Fixes: dd5f2351e99a ("arm64: dts: meson: sync dt and bindings from v5.6-rc2")
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Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
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---
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arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi b/arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi
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index c35158d7e9..2a245bbe7f 100644
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--- a/arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi
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+++ b/arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi
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@@ -5,3 +5,10 @@
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*/
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#include "meson-gx-u-boot.dtsi"
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+
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+ðmac {
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+ snps,reset-gpio = <&gpio GPIOZ_14 0>;
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+ snps,reset-delays-us = <0 10000 1000000>;
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+ snps,reset-active-low;
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+};
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+
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--
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2.34.1
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