--- /dev/null
+From ad651d68cee75e9ac20002254c4e5d09ee67a84b Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Sun, 2 Apr 2023 12:44:37 +0100
+Subject: [PATCH] net: sfp: add quirk enabling 2500Base-x for HG MXPD-483II
+
+The HG MXPD-483II 1310nm SFP module is meant to operate with 2500Base-X,
+however, in their EEPROM they incorrectly specify:
+ Transceiver type : Ethernet: 1000BASE-LX
+ ...
+ BR, Nominal : 2600MBd
+
+Use sfp_quirk_2500basex for this module to allow 2500Base-X mode anyway.
+
+https://forum.banana-pi.org/t/bpi-r3-sfp-module-compatibility/14573/60
+
+Reported-by: chowtom <chowtom@gmail.com>
+Tested-by: chowtom <chowtom@gmail.com>
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/phy/sfp.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/net/phy/sfp.c
++++ b/drivers/net/phy/sfp.c
+@@ -366,6 +366,10 @@ static const struct sfp_quirk sfp_quirks
+ .part = "HL-GSFP",
+ .fixup = sfp_fixup_halny_gsfp,
+ }, {
++ .vendor = "HG GENUINE",
++ .part = "MXPD-483II",
++ .modes = sfp_quirk_2500basex,
++ }, {
+ // Huawei MA5671A can operate at 2500base-X, but report 1.2GBd
+ // NRZ in their EEPROM
+ .vendor = "HUAWEI",
+++ /dev/null
---- a/drivers/net/phy/sfp.c
-+++ b/drivers/net/phy/sfp.c
-@@ -366,6 +366,10 @@ static const struct sfp_quirk sfp_quirks
- .part = "HL-GSFP",
- .fixup = sfp_fixup_halny_gsfp,
- }, {
-+ .vendor = "HG GENUINE",
-+ .part = "MXPD-483II",
-+ .modes = sfp_quirk_2500basex,
-+ }, {
- // Huawei MA5671A can operate at 2500base-X, but report 1.2GBd
- // NRZ in their EEPROM
- .vendor = "HUAWEI",