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- From 0836d9fb41ed90090ef4af0d7abe784ee7706f80 Mon Sep 17 00:00:00 2001
- From: Russell King <[email protected]>
- 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 <[email protected]>
- ---
- 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)
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