Marek Behún 09bbedac72 net: phy: mdio-i2c: support I2C MDIO protocol for RollBall SFP modules ... Some multigig SFPs from RollBall and Hilink do not expose functional MDIO access to the internal PHY of the SFP via I2C address 0x56 (although there seems to be read-only clause 22 access on this address). Instead these SFPs PHY can be accessed via I2C via the SFP Enhanced Digital Diagnostic Interface - I2C address 0x51. The SFP_PAGE has to be selected to 3 and the password must be filled with 0xff bytes for this PHY communication to work. This extends the mdio-i2c driver to support this protocol by adding a special parameter to mdio_i2c_alloc function via which this RollBall protocol can be selected. Signed-off-by: Marek Behún <kabel@kernel.org> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>		2022-10-03 11:08:33 +01:00
..
mdio-i2c.h	net: phy: mdio-i2c: support I2C MDIO protocol for RollBall SFP modules	2022-10-03 11:08:33 +01:00
mdio-mscc-miim.h
mdio-xgene.h	add missing includes and forward declarations to networking includes under linux/	2022-07-28 11:29:36 +02:00