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Changelog: 18aa36238a4d: net: phy: realtek: add interrupt support for RTL8221B 61958b33ef0b: net: phy: realtek: Add RTL8224 cable testing support ffff5c8fc2af: net: phy: realtek: fix rtl8221b-vm-cg name 2c67301584f2: net: phy: realtek: Avoid PHYCR2 access if PHYCR2 not present f63f21e82eca: net: phy: realtek: support for TRIGGER_NETDEV_LINK on RTL8211E and RTL8211F a9b24b3583ae: net: phy: realtek: add error handling to rtl8211f_get_wol Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl> Link: https://github.com/openwrt/openwrt/pull/20650 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
28 lines
1.0 KiB
Diff
28 lines
1.0 KiB
Diff
From: Daniel Golle <daniel@makrotopia.org>
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Date: Thu, 30 Jan 2025 05:38:31 +0000
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Subject: [PATCH] net: phy: realtek: disable MDIO broadcast
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RealTek's PHYs by default also listen on MDIO address 0 which is defined
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as broadcast address. This can lead to problems if there is an actual PHY
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(such as MT7981 built-in PHY) present at this address, as accessing that
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PHY may then confuse the RealTek PHY.
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Disabled listening on the MDIO broadcast address to avoid such problems.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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---
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--- a/drivers/net/phy/realtek/realtek_main.c
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+++ b/drivers/net/phy/realtek/realtek_main.c
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@@ -1107,6 +1107,11 @@ static int rtl822xb_config_init(struct p
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phydev->host_interfaces) ||
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phydev->interface == PHY_INTERFACE_MODE_SGMII;
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+ /* disable listening on MDIO broadcast address (0) */
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+ ret = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND2, 0xa430, BIT(13));
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+ if (ret < 0)
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+ return ret;
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+
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/* fill in possible interfaces */
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__assign_bit(PHY_INTERFACE_MODE_2500BASEX, phydev->possible_interfaces,
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has_2500);
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