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authorDavid Daney <david.daney@cavium.com>2012-06-27 07:33:36 +0000
committerDavid S. Miller <davem@davemloft.net>2012-06-27 21:23:24 -0700
commit6bd47ac2e434611e52027155438d7b4ad3c76bdb (patch)
treedde981a0e2592d9cbe13f56dd2a6db69744fbb9b /drivers/of/of_mdio.c
parentac28b9f8cd66d6bc54f8063df59e99abd62173a4 (diff)
netdev/phy/of: Handle IEEE802.3 clause 45 Ethernet PHYs in of_mdiobus_register()
Define two new "compatible" values for Ethernet PHYs. "ethernet-phy-ieee802.3-c22" and "ethernet-phy-ieee802.3-c45" are used to indicate a PHY uses the corresponding protocol. If a PHY is "compatible" with "ethernet-phy-ieee802.3-c45", we indicate this so that get_phy_device() can properly probe the device. If get_phy_device() fails, it was probably due to failing the probe of the PHY identifier registers. Since we have the device tree telling us the PHY exists, go ahead and add it anyhow with a phy_id of zero. There may be a driver match based on the "compatible" property. Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/of/of_mdio.c')
-rw-r--r--drivers/of/of_mdio.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 6c24cad322df..8e6c25f35040 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -57,6 +57,7 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
const __be32 *paddr;
u32 addr;
int len;
+ bool is_c45;
/* A PHY must have a reg property in the range [0-31] */
paddr = of_get_property(child, "reg", &len);
@@ -79,11 +80,18 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
mdio->irq[addr] = PHY_POLL;
}
- phy = get_phy_device(mdio, addr, false);
+ is_c45 = of_device_is_compatible(child,
+ "ethernet-phy-ieee802.3-c45");
+ phy = get_phy_device(mdio, addr, is_c45);
+
if (!phy || IS_ERR(phy)) {
- dev_err(&mdio->dev, "error probing PHY at address %i\n",
- addr);
- continue;
+ phy = phy_device_create(mdio, addr, 0, false, NULL);
+ if (!phy || IS_ERR(phy)) {
+ dev_err(&mdio->dev,
+ "error creating PHY at address %i\n",
+ addr);
+ continue;
+ }
}
/* Associate the OF node with the device structure so it