diff options
| author | Markus Stockhausen | 2025-10-03 15:18:42 +0000 |
|---|---|---|
| committer | Robert Marko | 2025-10-05 10:15:03 +0000 |
| commit | c18476d0c58187238304e2300ebf341726b21413 (patch) | |
| tree | 6e84106fa5021cf288cced75e0cf6bfdb73700f5 | |
| parent | 8916b26a66d9ac61856fc904c74c0c4f424e0979 (diff) | |
| download | openwrt-c18476d0c58187238304e2300ebf341726b21413.tar.gz | |
realtek: RTL931x: disable USXGMII SerDes setup
The first RTL931x devices make their way into OpenWrt. Their copper
ports are driven by different interfaces modes like 10G_QXGMII or
Realtek proprietary XSGMII. The DSA driver has no proper handling
for theses modes implemented yet. So a lot is auto-mapped to USXGMII
internally. As soon as the SerDes setup activates this (wrong) mode
the PHY connectivity breaks.
Disable this mode for now and rely on the proper U-Boot setup.
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/20292
Signed-off-by: Robert Marko <robimarko@gmail.com>
| -rw-r--r-- | target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/dsa.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/dsa.c b/target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/dsa.c index d37a372c06..508119ff01 100644 --- a/target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/dsa.c +++ b/target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/dsa.c @@ -692,10 +692,16 @@ static void rtl931x_phylink_mac_config(struct dsa_switch *ds, int port, rtl931x_sds_init(sds_num, PHY_INTERFACE_MODE_10GBASER); break; case PHY_INTERFACE_MODE_USXGMII: - /* Translates to MII_USXGMII_10GSXGMII */ - band = rtl931x_sds_cmu_band_get(sds_num, PHY_INTERFACE_MODE_USXGMII); - rtl931x_sds_init(sds_num, PHY_INTERFACE_MODE_USXGMII); - break; + /* + * TODO: USXGMII is currently the swiss army knife to declare 10G + * multi port PHYs. Real devices use other modes instead. Especially + * + * - RTL8224 is driven in 10G_QXGMII + * - RTL8218D/E are driven in (Realtek proprietary) XSGMII (10G SGMII) + * + * For now disable all USXGMII SerDes handling and rely on U-Boot setup. + */ + break; case PHY_INTERFACE_MODE_SGMII: pr_info("%s setting mode PHY_INTERFACE_MODE_SGMII\n", __func__); band = rtl931x_sds_cmu_band_get(sds_num, PHY_INTERFACE_MODE_SGMII); |