1 files changed, 40 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/711-v5.12-sfp-add-support-for-100-base-x-SFPs.patch b/target/linux/generic/backport-5.10/711-v5.12-sfp-add-support-for-100-base-x-SFPs.patch
new file mode 100644
index 0000000000..7d06c235d9
--- /dev/null
+++ b/target/linux/generic/backport-5.10/711-v5.12-sfp-add-support-for-100-base-x-SFPs.patch
@@ -0,0 +1,40 @@
+From 6e12f35cef6b8a458d7ecf507ae330e0bffaad8c Mon Sep 17 00:00:00 2001
+From: Bjarni Jonasson <bjarni.jonasson@microchip.com>
+Date: Wed, 13 Jan 2021 12:56:26 +0100
+Subject: [PATCH] sfp: add support for 100 base-x SFPs
+
+Add support for 100Base-FX, 100Base-LX, 100Base-PX and 100Base-BX10 modules
+This is needed for Sparx-5 switch.
+
+Signed-off-by: Bjarni Jonasson <bjarni.jonasson@microchip.com>
+Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/phy/sfp-bus.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/drivers/net/phy/sfp-bus.c
++++ b/drivers/net/phy/sfp-bus.c
+@@ -280,6 +280,12 @@ void sfp_parse_support(struct sfp_bus *b
+ 	    br_min <= 1300 && br_max >= 1200)
+ 		phylink_set(modes, 1000baseX_Full);
+ 
++	/* 100Base-FX, 100Base-LX, 100Base-PX, 100Base-BX10 */
++	if (id->base.e100_base_fx || id->base.e100_base_lx)
++		phylink_set(modes, 100baseFX_Full);
++	if ((id->base.e_base_px || id->base.e_base_bx10) && br_nom == 100)
++		phylink_set(modes, 100baseFX_Full);
++
+ 	/* For active or passive cables, select the link modes
+ 	 * based on the bit rates and the cable compliance bytes.
+ 	 */
+@@ -399,6 +405,9 @@ phy_interface_t sfp_select_interface(str
+ 	if (phylink_test(link_modes, 1000baseX_Full))
+ 		return PHY_INTERFACE_MODE_1000BASEX;
+ 
++	if (phylink_test(link_modes, 100baseFX_Full))
++		return PHY_INTERFACE_MODE_100BASEX;
++
+ 	dev_warn(bus->sfp_dev, "Unable to ascertain link mode\n");
+ 
+ 	return PHY_INTERFACE_MODE_NA;