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Subject[PATCH 2/3] netdev/phy/of: Handle IEEE802.3 clause 45 Ethernet PHYs in of_mdiobus_register()
Date
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.

Signed-off-by: David Daney <david.daney@cavium.com>
---
Documentation/devicetree/bindings/net/phy.txt | 12 +++++++++++-
drivers/of/of_mdio.c | 4 ++++
2 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
index bb8c742..de9cb32 100644
--- a/Documentation/devicetree/bindings/net/phy.txt
+++ b/Documentation/devicetree/bindings/net/phy.txt
@@ -16,8 +16,18 @@ Required properties:

Example:

+Optional Properties:
+
+- compatible: Compatible list, may contain "ethernet-phy-ieee802.3-c22" or
+ "ethernet-phy-ieee802.3-c45" for PHYs that implement
+ IEEE802.3 clause 22 or IEEE802.3 clause 45
+ specifications. If neither of these are specified, the
+ default is to assume clause 22. The compatible list may
+ also contain other elements.
+
ethernet-phy@0 {
- linux,phandle = <2452000>
+ compatible = "ethernet-phy-ieee802.3-c22";
+ linux,phandle = <2452000>;
interrupt-parent = <40000>;
interrupts = <35 1>;
reg = <0>;
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 7c28e8c..f837a7f 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -79,6 +79,10 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
mdio->irq[addr] = PHY_POLL;
}

+ if (of_device_is_compatible(child,
+ "ethernet-phy-ieee802.3-c45"))
+ addr |= MII_ADDR_C45;
+
phy = get_phy_device(mdio, addr);
if (!phy || IS_ERR(phy)) {
dev_err(&mdio->dev, "error probing PHY at address %i\n",
--
1.7.2.3


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