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authorDavid Daney <david.daney@cavium.com>2012-06-27 07:33:35 +0000
committerDavid S. Miller <davem@davemloft.net>2012-06-27 21:23:24 -0700
commitac28b9f8cd66d6bc54f8063df59e99abd62173a4 (patch)
tree9a837eafeead399aebad03fb891654ddeff37513 /drivers/of
parenta3caad0a160c03b7238a2518fa89abda78adef1e (diff)
downloadop-kernel-dev-ac28b9f8cd66d6bc54f8063df59e99abd62173a4.zip
op-kernel-dev-ac28b9f8cd66d6bc54f8063df59e99abd62173a4.tar.gz
netdev/phy: Handle IEEE802.3 clause 45 Ethernet PHYs
The IEEE802.3 clause 45 MDIO bus protocol allows for directly addressing PHY registers using a 21 bit address, and is used by many 10G Ethernet PHYS. Already existing is the ability of MDIO bus drivers to use clause 45, with the MII_ADDR_C45 flag. Here we add struct phy_c45_device_ids to hold the device identifier registers present in clause 45. struct phy_device gets a couple of new fields: c45_ids to hold the identifiers and is_c45 to signal that it is clause 45. get_phy_device() gets a new parameter is_c45 to indicate that the PHY device should use the clause 45 protocol, and its callers are adjusted to pass false. The follow-on patch to of_mdio.c will pass true where appropriate. EXPORT phy_device_create() so that the follow-on patch to of_mdio.c can use it to create phy devices for PHYs, that have non-standard device identifier registers, based on the device tree bindings. Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/of_mdio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 2574abd..6c24cad 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -79,7 +79,7 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
mdio->irq[addr] = PHY_POLL;
}
- phy = get_phy_device(mdio, addr);
+ phy = get_phy_device(mdio, addr, false);
if (!phy || IS_ERR(phy)) {
dev_err(&mdio->dev, "error probing PHY at address %i\n",
addr);
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