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authorMichael Walle <michael@walle.cc>2020-05-13 18:35:23 +0200
committerDavid S. Miller <davem@davemloft.net>2020-05-13 12:52:38 -0700
commit11ecf8c55b91806e4dc6a1b9fe7cbf68cdc9b006 (patch)
tree8dad14749b9bfdbf39a45ef1560beada87d66515 /drivers/net/phy/bcm-phy-lib.h
parente184a9072f8995e78ad6cef48bfeab2b987945ec (diff)
net: phy: broadcom: add cable test support
Most modern broadcom PHYs support ECD (enhanced cable diagnostics). Add support for it in the bcm-phy-lib so they can easily be used in the PHY driver. There are two access methods for ECD: legacy by expansion registers and via the new RDB registers which are exclusive. Provide functions in two variants where the PHY driver can choose from. To keep things simple for now, we just switch the register access to expansion registers in the RDB variant for now. On the flipside, we have to keep a bus lock to prevent any other non-legacy access on the PHY. The results of the intra-pair tests are inconclusive (at least for the BCM54140). Most of the times half the length is reported but sometimes the length is correct. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/bcm-phy-lib.h')
-rw-r--r--drivers/net/phy/bcm-phy-lib.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/phy/bcm-phy-lib.h b/drivers/net/phy/bcm-phy-lib.h
index b35d880220b9..237a8503c9b4 100644
--- a/drivers/net/phy/bcm-phy-lib.h
+++ b/drivers/net/phy/bcm-phy-lib.h
@@ -80,4 +80,10 @@ void bcm_phy_r_rc_cal_reset(struct phy_device *phydev);
int bcm_phy_28nm_a0b0_afe_config_init(struct phy_device *phydev);
int bcm_phy_enable_jumbo(struct phy_device *phydev);
+int bcm_phy_cable_test_get_status_rdb(struct phy_device *phydev,
+ bool *finished);
+int bcm_phy_cable_test_start_rdb(struct phy_device *phydev);
+int bcm_phy_cable_test_start(struct phy_device *phydev);
+int bcm_phy_cable_test_get_status(struct phy_device *phydev, bool *finished);
+
#endif /* _LINUX_BCM_PHY_LIB_H */