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net: mdiobus: add clause 45 mdiobus accessors

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There is a recurring pattern throughout some of the PHY code converting
a devad and regnum to our packed clause 45 representation. Rather than
having this scattered around the code, let's put a common translation
function in mdio.h, and provide some register accessors.

Convert the phylib core, phylink, bcm87xx and cortina to use these.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King
2020-05-26 16:29:36 +01:00
committed by David S. Miller
parent 8928e19ad8
commit 90ce665c6a
8 changed files with 52 additions and 36 deletions
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6
include/linux/phy.h
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@@ -209,12 +209,6 @@ static inline const char *phy_modes(phy_interface_t interface)
#define MII_BUS_ID_SIZE 61
/* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */
#define MII_ADDR_C45 (1<<30)
#define MII_DEVADDR_C45_SHIFT 16
#define MII_REGADDR_C45_MASK GENMASK(15, 0)
struct device;
struct phylink;
struct sfp_bus;