[PATCH] bcm53xx: disable CONFIG_SWCONFIG_B53_PHY_DRIVER

[Rafał Miłecki]

From: Rafał Miłecki <rafal at milecki.pl>

OpenWrt downstream b53 MDIO driver is bugged as it:
1. Registers as PHY device driver (while switch is an MDIO device)
2. Provides of_match_table

That results in bypassing kernel bus matching checks and probing b53 for
MDIO device treated as PHY device. It doesn't work as PHY structure
isn't initialized and phy_probe() causes a softlock.

This happened to work with kernel 5.4 but some internal change revealed
that broken design.

For bcm53xx this shouldn't be critical as only Linksys EA9500 extra
switch is connected using MDIO.

Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
---
 target/linux/bcm53xx/config-5.10 | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/target/linux/bcm53xx/config-5.10 b/target/linux/bcm53xx/config-5.10
index 9d98e812bd..e495419aad 100644
--- a/target/linux/bcm53xx/config-5.10
+++ b/target/linux/bcm53xx/config-5.10
@@ -268,8 +268,7 @@ CONFIG_SPI_MEM=y
 CONFIG_SRCU=y
 CONFIG_SWCONFIG=y
 CONFIG_SWCONFIG_B53=y
-CONFIG_SWCONFIG_B53_PHY_DRIVER=y
-CONFIG_SWCONFIG_B53_PHY_FIXUP=y
+# CONFIG_SWCONFIG_B53_PHY_DRIVER is not set
 CONFIG_SWCONFIG_B53_SRAB_DRIVER=y
 CONFIG_SWPHY=y
 CONFIG_SWP_EMULATE=y
-- 
2.26.2