diff options
| author | Jonas Jelonek | 2026-02-10 13:52:20 +0000 |
|---|---|---|
| committer | Hauke Mehrtens | 2026-02-14 19:40:40 +0000 |
| commit | cf1f06817ce2c2f518a11ca3d0a89aa1cf2bcb91 (patch) | |
| tree | cb343c70f1c92572386598794352fa5557b7eb8d | |
| parent | ca9e38963f23a71d42bd2542b42a9db96f88903d (diff) | |
| download | openwrt-cf1f06817ce2c2f518a11ca3d0a89aa1cf2bcb91.tar.gz | |
realtek: pcs: rtl931x: add 2500Base-X mode
Add 2500Base-X handling to mode setting which was rejected with
-ENOTSUPP before. SDK code available to us doesn't have the proper mode
value. Though by brute-forcing different mode values, 0x2d was found to
make a 2500Base-X link work.
This was tested with an otherwise correctly configured RTL8221B PHY
which is automatically switched between 2500Base-X and SGMII in the
upstream driver. Though, since there was a previous U-Boot setup for the
PHY in HISGMII mode, it may not be standalone yet.
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/22014
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
| -rw-r--r-- | target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c b/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c index 713abf68b9..d72477ab0b 100644 --- a/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c +++ b/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c @@ -3148,6 +3148,13 @@ static int rtpcs_931x_sds_set_ip_mode(struct rtpcs_serdes *sds, mode_val = 0x9; break; + case RTPCS_SDS_MODE_2500BASEX: + /* available SDK code doesn't have this value. based on brute-forcing + * the SerDes mode register field until the link is working + */ + mode_val = 0x2d; + break; + case RTPCS_SDS_MODE_10GBASER: mode_val = 0x35; break; |