diff options
| author | Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2010-03-09 09:17:42 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-16 21:23:42 -0700 |
| commit | abf35df21513c51d7761c41fa6d3b819cdf4103e (patch) | |
| tree | 3152b04190035149aba67936ef0cff81cc6af3a0 /drivers/net/phy/mdio_bus.c | |
| parent | 23606cf5d1192c2b17912cb2ef6e62f9b11de133 (diff) | |
NET: Support clause 45 MDIO commands at the MDIO bus level
IEEE 802.3ae clause 45 specifies a somewhat modified MDIO protocol
for use by 10GIGE phys. The main change is a 21 bit address split into
a 5 bit device ID and a 16 bit register offset. The definition is designed
so that normal and extended devices can run on the same MDIO bus.
Extend mdio-bitbang to do the new protocol. At the MDIO bus level the
protocol is requested by or'ing MII_ADDR_C45 into the register offset.
Make phy_read/phy_write/etc pass a full 32 bit register offset.
This does not attempt to make the phy layer support C45 style PHYs, just
to provide the MDIO bus support.
Tested against a Broadcom 10GE phy with ID 0x206034, and several
Broadcom 10/100/1000 Phys in normal mode.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/mdio_bus.c')
| -rw-r--r-- | drivers/net/phy/mdio_bus.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index e17b70291bb..6a6b8199a0d 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -208,7 +208,7 @@ EXPORT_SYMBOL(mdiobus_scan); * because the bus read/write functions may wait for an interrupt * to conclude the operation. */ -int mdiobus_read(struct mii_bus *bus, int addr, u16 regnum) +int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum) { int retval; @@ -233,7 +233,7 @@ EXPORT_SYMBOL(mdiobus_read); * because the bus read/write functions may wait for an interrupt * to conclude the operation. */ -int mdiobus_write(struct mii_bus *bus, int addr, u16 regnum, u16 val) +int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val) { int err; |