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authorRobert Marko <robert.marko@sartura.hr>2021-11-17 16:17:07 +0100
committerDaniel Golle <daniel@makrotopia.org>2021-11-19 09:40:29 +0000
commitebb6f9287e33c3760b076efa6dcc1cce90e1a109 (patch)
treed172863b1f3ff1dc390d4c58d060e6af3fb0983e /target/linux/sunxi
parent3ae5da5adce90443426a477784e68cd9d49ded06 (diff)
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sunxi: 5.10: Orange Pi Zero Plus: Fix networking
Orange Pi Zero Plus uses a Realtek RTL8211E RGMII Gigabit PHY, but its currently set to plain RGMII mode meaning that it doesn't introduce delays. With this setup, TX packets are completely lost and changing the mode to RGMII-ID so the PHY will add delays internally fixes the issue. It looks like this got broken in 5.10 as the PHY RGMII config got fixed due to datasheet being available and a lot of boards got broken by that. This has already been sent upstream and received multiple reviews. Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Diffstat (limited to 'target/linux/sunxi')
-rw-r--r--target/linux/sunxi/patches-5.10/103-arm64-dts-allwinner-orangepi-zero-plus-fix-PHY-mo.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/sunxi/patches-5.10/103-arm64-dts-allwinner-orangepi-zero-plus-fix-PHY-mo.patch b/target/linux/sunxi/patches-5.10/103-arm64-dts-allwinner-orangepi-zero-plus-fix-PHY-mo.patch
new file mode 100644
index 0000000000..e3a00348b0
--- /dev/null
+++ b/target/linux/sunxi/patches-5.10/103-arm64-dts-allwinner-orangepi-zero-plus-fix-PHY-mo.patch
@@ -0,0 +1,32 @@
+From 4f45f9f370a5bc6a43a7a166f10b3a30ca21353c Mon Sep 17 00:00:00 2001
+From: Robert Marko <robert.marko@sartura.hr>
+Date: Wed, 17 Nov 2021 10:36:31 +0100
+Subject: [PATCH v2] arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode
+
+Orange Pi Zero Plus uses a Realtek RTL8211E RGMII Gigabit PHY, but its
+currently set to plain RGMII mode meaning that it doesn't introduce
+delays.
+
+With this setup, TX packets are completely lost and changing the mode to
+RGMII-ID so the PHY will add delays internally fixes the issue.
+
+Fixes: a7affb13b271 ("arm64: allwinner: H5: Add Xunlong Orange Pi Zero Plus")
+
+Tested-by: Ron Goossens <rgoossens@gmail.com>
+Signed-off-by: Robert Marko <robert.marko@sartura.hr>
+Tested-by: Samuel Holland <samuel@sholland.org>
+---
+ arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
++++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
+@@ -69,7 +69,7 @@
+ pinctrl-0 = <&emac_rgmii_pins>;
+ phy-supply = <&reg_gmac_3v3>;
+ phy-handle = <&ext_rgmii_phy>;
+- phy-mode = "rgmii";
++ phy-mode = "rgmii-id";
+ status = "okay";
+ };
+