diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/738-v5.5-net-phy-marvell10g-add-SFP-support.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/738-v5.5-net-phy-marvell10g-add-SFP-support.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/738-v5.5-net-phy-marvell10g-add-SFP-support.patch b/target/linux/generic/backport-5.4/738-v5.5-net-phy-marvell10g-add-SFP-support.patch new file mode 100644 index 0000000000..a67431ce5c --- /dev/null +++ b/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 +@@ -25,6 +25,7 @@ + #include <linux/hwmon.h> + #include <linux/marvell_phy.h> + #include <linux/phy.h> ++#include <linux/sfp.h> + + enum { + MV_PMA_BOOT = 0xc050, +@@ -219,6 +220,28 @@ 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; +@@ -249,7 +272,7 @@ 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) |