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Merge branch 'phy-c45-loopback'

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Wong Vee Khee says:

====================
Add support for Clause-45 PHY Loopback

This patch series add support for Clause-45 PHY loopback.

It involves adding a generic API in the PHY framework, which can be
accessed by all C45 PHY drivers using the .set_loopback callback.

Also, enable PHY loopback for the Marvell 88x3310/88x2110 driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2021-03-24 15:20:08 -07:00
commit 8a5c14877a
3 changed files with 11 additions and 0 deletions
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2
drivers/net/phy/marvell10g.c
View File

@ -781,6 +781,7 @@ static struct phy_driver mv3310_drivers[] = {
.get_tunable = mv3310_get_tunable,
.set_tunable = mv3310_set_tunable,
.remove = mv3310_remove,
.set_loopback = genphy_c45_loopback,
},
{
.phy_id = MARVELL_PHY_ID_88E2110,
@ -796,6 +797,7 @@ static struct phy_driver mv3310_drivers[] = {
.get_tunable = mv3310_get_tunable,
.set_tunable = mv3310_set_tunable,
.remove = mv3310_remove,
.set_loopback = genphy_c45_loopback,
},
};

8
drivers/net/phy/phy-c45.c
View File

@ -560,6 +560,14 @@ int gen10g_config_aneg(struct phy_device *phydev)
}
EXPORT_SYMBOL_GPL(gen10g_config_aneg);
int genphy_c45_loopback(struct phy_device *phydev, bool enable)
{
return phy_modify_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1,
MDIO_PCS_CTRL1_LOOPBACK,
enable ? MDIO_PCS_CTRL1_LOOPBACK : 0);
}
EXPORT_SYMBOL_GPL(genphy_c45_loopback);
struct phy_driver genphy_c45_driver = {
.phy_id = 0xffffffff,
.phy_id_mask = 0xffffffff,

1
include/linux/phy.h
View File

@ -1532,6 +1532,7 @@ int genphy_c45_read_mdix(struct phy_device *phydev);
int genphy_c45_pma_read_abilities(struct phy_device *phydev);
int genphy_c45_read_status(struct phy_device *phydev);
int genphy_c45_config_aneg(struct phy_device *phydev);
int genphy_c45_loopback(struct phy_device *phydev, bool enable);
/* Generic C45 PHY driver */
extern struct phy_driver genphy_c45_driver;