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authorJason Gunthorpe <jgunthorpe@obsidianresearch.com>2014-03-19 22:15:23 (GMT)
committerDavid S. Miller <davem@davemloft.net>2014-03-20 21:10:28 (GMT)
commitf00e756ed12d3204583764c93e41b89e1ae7ee44 (patch)
treea9da0f38d5f835ae20683969467db8a7b07f6332 /Documentation/devicetree/bindings/net
parent418ebec0158e473fd4c9fb3edfc014b3f46c37e0 (diff)
dt: Document a compatible entry for MDIO ethernet Phys
This describes a compatible entry of the form: ethernet-phy-idAAAA,BBBB Which is modelled after the PCI structured compatible entry (pciVVVV,DDDD.SSSS.ssss.RR) If present the OF core will be able to use this information to directly create the correct phy without auto probing the bus. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree/bindings/net')
-rw-r--r--Documentation/devicetree/bindings/net/phy.txt10
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
index 58307d0..5b8c589 100644
--- a/Documentation/devicetree/bindings/net/phy.txt
+++ b/Documentation/devicetree/bindings/net/phy.txt
@@ -21,10 +21,18 @@ Optional Properties:
elements.
- max-speed: Maximum PHY supported speed (10, 100, 1000...)
+ If the phy's identifier is known then the list may contain an entry
+ of the form: "ethernet-phy-idAAAA.BBBB" where
+ AAAA - The value of the 16 bit Phy Identifier 1 register as
+ 4 hex digits. This is the chip vendor OUI bits 3:18
+ BBBB - The value of the 16 bit Phy Identifier 2 register as
+ 4 hex digits. This is the chip vendor OUI bits 19:24,
+ followed by 10 bits of a vendor specific ID.
+
Example:
ethernet-phy@0 {
- compatible = "ethernet-phy-ieee802.3-c22";
+ compatible = "ethernet-phy-id0141.0e90", "ethernet-phy-ieee802.3-c22";
interrupt-parent = <40000>;
interrupts = <35 1>;
reg = <0>;

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