LinkStar H68K – RK3568 dual 2.5GbE, WiFi 6

Apache14 · May 31, 2023, 9:45pm

On the R6S (also using realtek 2.5Gbit ports) I found that this patch broke 2.5Gbit/s line speeds

openwrt/openwrt/blob/main/target/linux/generic/pending-6.1/729-net-phy-realtek-introduce-rtl822x_probe.patch

From 9155098547fb1172d4fa536f3f6bc9d42f59d08c Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Sat, 22 Apr 2023 03:26:01 +0100
Subject: [PATCH] net: phy: realtek: setup ALDPS on RTL822x

Setup Link Down Power Saving Mode according the DTS property
just like for RTL821x 1GE PHYs.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 drivers/net/phy/realtek.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -62,6 +62,10 @@
 #define RTL8221B_SERDES_OPTION_MODE_2500BASEX		2
 #define RTL8221B_SERDES_OPTION_MODE_HISGMII		3
 
+#define RTL8221B_PHYCR1				0xa430

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Potentially this one as well

github.com

openwrt/openwrt/blob/main/target/linux/generic/pending-6.1/724-net-phy-realtek-use-genphy_soft_reset-for-2.5G-PHYs.patch

From 85cd45580f5e3b26068cccb7d6173f200e754dc0 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Sun, 2 Apr 2023 23:56:16 +0100
Subject: [PATCH 1/2] net: phy: realtek: use genphy_soft_reset for 2.5G PHYs

Some vendor bootloaders do weird things with those PHYs which result in
link modes being reported wrongly. Start from a clean sheet by resetting
the PHY.

Reported-by: Yevhen Kolomeiko <jarvis2709@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 drivers/net/phy/realtek.c | 6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -1038,6 +1038,7 @@ static struct phy_driver realtek_drvs[]
 		.write_page	= rtl821x_write_page,
 		.read_mmd	= rtl822x_read_mmd,

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