Files
openwrt/target/linux/generic/hack-6.18
Jan Hoffmann 88dcd8c303 kernel: add hack to avoid killing RTL8221B PHYs
RTL8221B unfortunately suffers from a issue where reading registers from
MMD 30 can break the PHY. Once it is in the broken state, recovery is
only possible by hardware reset.

Add a hack which prevents the kernel from reading MMD 30 while probing
for PHYs when a RTL8221B is detected, based on the ID from MMD 1.

Fixes: https://github.com/openwrt/openwrt/issues/22140
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Link: https://github.com/openwrt/openwrt/pull/25017
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
2026-09-06 18:06:10 +02:00
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