[openwrt/openwrt] realtek: mdio: setup polling for RTL8261

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/1ff39f9e986dbe99b2b1232cf0307437b20b41d2

commit 1ff39f9e986dbe99b2b1232cf0307437b20b41d2
Author: Markus Stockhausen <markus.stockhausen at gmx.de>
AuthorDate: Fri Feb 20 07:55:24 2026 +0100

    realtek: mdio: setup polling for RTL8261
    
    Startup of mdio on a RTL8216 based device currently shows the
    following warnings.
    
    [1.948608] skip polling setup for unknown PHY 001ccaf3 on port 0
    [1.968920] skip polling setup for unknown PHY 001ccaf3 on port 8
    [1.989171] skip polling setup for unknown PHY 001ccaf3 on port 16
    [2.009704] skip polling setup for unknown PHY 001ccaf3 on port 20
    [2.030209] skip polling setup for unknown PHY 001ccaf3 on port 24
    [2.052270] realtek-otto-serdes-mdio 1b000000.switchcore:mdio-serdes:
               Realtek SerDes mdio bus initialized, 12 SerDes, 64 pages
    
    Add the phy detection to the mdio bus so that polling setup works.
    While we are here sort the phy ids alphabetically.
    
    Signed-off-by: Markus Stockhausen <markus.stockhausen at gmx.de>
    Link: https://github.com/openwrt/openwrt/pull/22109
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 .../realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c    | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c b/target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c
index e38f98914e..a0919cca48 100644
--- a/target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c
+++ b/target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c
@@ -16,12 +16,13 @@
 #define RTMDIO_PHY_AQR113C_A			0x31c31c12
 #define RTMDIO_PHY_AQR113C_B			0x31c31c13
 #define RTMDIO_PHY_AQR813			0x31c31cb2
+#define RTMDIO_PHY_RTL8218D			0x001cc983
+#define RTMDIO_PHY_RTL8218E			0x001cc984
 #define RTMDIO_PHY_RTL8221B_VB_CG		0x001cc849
 #define RTMDIO_PHY_RTL8221B_VM_CG		0x001cc84a
 #define RTMDIO_PHY_RTL8224			0x001ccad0
 #define RTMDIO_PHY_RTL8226			0x001cc838
-#define RTMDIO_PHY_RTL8218D			0x001cc983
-#define RTMDIO_PHY_RTL8218E			0x001cc984
+#define RTMDIO_PHY_RTL8261			0x001ccaf3
 
 #define RTMDIO_PHY_MAC_1G			3
 #define RTMDIO_PHY_MAC_2G_PLUS			1
@@ -637,6 +638,11 @@ static int rtmdio_get_phy_info(struct mii_bus *bus, int addr, struct rtmdio_phy_
 		phyinfo->poll_adv_1000 = RTMDIO_PHY_POLL_MMD(31, 0xa412, 9);
 		phyinfo->poll_lpa_1000 = RTMDIO_PHY_POLL_MMD(31, 0xa414, 11);
 		break;
+	case RTMDIO_PHY_RTL8261:
+		phyinfo->mac_type = RTMDIO_PHY_MAC_2G_PLUS;
+		phyinfo->has_giga_lite = true;
+		phyinfo->has_res_reg = true;
+		break;
 	default:
 		pr_warn("skip polling setup for unknown PHY %08x on port %d\n", phyid, addr);
 		ret = -EINVAL;