Initial commit

target/linux/generic/backport-5.4/738-v5.5-net-phy-marvell10g-add-SFP-support.patch

@@ -0,0 +1,67 @@
+From 0836d9fb41ed90090ef4af0d7abe784ee7706f80 Mon Sep 17 00:00:00 2001
+From: Russell King <rmk+kernel@armlinux.org.uk>
+Date: Fri, 14 Apr 2017 14:21:25 +0100
+Subject: [PATCH 636/660] net: phy: marvell10g: add SFP+ support
+
+Add support for SFP+ cages to the Marvell 10G PHY driver. This is
+slightly complicated by the way phylib works in that we need to use
+a multi-step process to attach the SFP bus, and we also need to track
+the phylink state machine to know when the module's transmit disable
+signal should change state.
+
+With appropriate DT changes, this allows the SFP+ canges on the
+Macchiatobin platform to be functional.
+
+Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
+---
+ drivers/net/phy/marvell10g.c | 25 ++++++++++++++++++++++++-
+ 1 file changed, 24 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/phy/marvell10g.c
++++ b/drivers/net/phy/marvell10g.c
+@@ -26,6 +26,7 @@
+ #include <linux/hwmon.h>
+ #include <linux/marvell_phy.h>
+ #include <linux/phy.h>
++#include <linux/sfp.h>
+ 
+ #define MV_PHY_ALASKA_NBT_QUIRK_MASK	0xfffffffe
+ #define MV_PHY_ALASKA_NBT_QUIRK_REV	(MARVELL_PHY_ID_88X3310 | 0xa)
+@@ -206,6 +207,28 @@ static int mv3310_hwmon_probe(struct phy
+ }
+ #endif
+ 
++static int mv3310_sfp_insert(void *upstream, const struct sfp_eeprom_id *id)
++{
++	struct phy_device *phydev = upstream;
++	__ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
++	phy_interface_t iface;
++
++	sfp_parse_support(phydev->sfp_bus, id, support);
++	iface = sfp_select_interface(phydev->sfp_bus, id, support);
++
++	if (iface != PHY_INTERFACE_MODE_10GKR) {
++		dev_err(&phydev->mdio.dev, "incompatible SFP module inserted\n");
++		return -EINVAL;
++	}
++	return 0;
++}
++
++static const struct sfp_upstream_ops mv3310_sfp_ops = {
++	.attach = phy_sfp_attach,
++	.detach = phy_sfp_detach,
++	.module_insert = mv3310_sfp_insert,
++};
++
+ static int mv3310_probe(struct phy_device *phydev)
+ {
+ 	struct mv3310_priv *priv;
+@@ -236,7 +259,7 @@ static int mv3310_probe(struct phy_devic
+ 	if (ret)
+ 		return ret;
+ 
+-	return 0;
++	return phy_sfp_probe(phydev, &mv3310_sfp_ops);
+ }
+ 
+ static int mv3310_suspend(struct phy_device *phydev)