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authorJason Gunthorpe <jgunthorpe@obsidianresearch.com>2010-03-09 09:17:42 +0000
committerDavid S. Miller <davem@davemloft.net>2010-03-16 21:23:42 -0700
commitabf35df21513c51d7761c41fa6d3b819cdf4103e (patch)
tree3152b04190035149aba67936ef0cff81cc6af3a0 /drivers/net/phy/mdio_bus.c
parent23606cf5d1192c2b17912cb2ef6e62f9b11de133 (diff)
downloadlinux-linaro-stable-abf35df21513c51d7761c41fa6d3b819cdf4103e.tar.gz
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.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index e17b70291bbc..6a6b8199a0d6 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;