mirror of
https://github.com/torvalds/linux.git
synced 2024-12-19 09:32:32 +00:00
c88c7d3204
A recent commit extended the documentation of the ethernet-phy
compatible property, but placed the new paragraph under the max-speed
property.
Fixes: f00e756ed1 ("dt: Document a compatible entry for MDIO ethernet
Phys")
Cc: devicetree@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
PHY nodes
|
|
|
|
Required properties:
|
|
|
|
- interrupts : <a b> where a is the interrupt number and b is a
|
|
field that represents an encoding of the sense and level
|
|
information for the interrupt. This should be encoded based on
|
|
the information in section 2) depending on the type of interrupt
|
|
controller you have.
|
|
- interrupt-parent : the phandle for the interrupt controller that
|
|
services interrupts for this device.
|
|
- reg : The ID number for the phy, usually a small integer
|
|
|
|
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.
|
|
|
|
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.
|
|
|
|
- max-speed: Maximum PHY supported speed (10, 100, 1000...)
|
|
|
|
Example:
|
|
|
|
ethernet-phy@0 {
|
|
compatible = "ethernet-phy-id0141.0e90", "ethernet-phy-ieee802.3-c22";
|
|
interrupt-parent = <40000>;
|
|
interrupts = <35 1>;
|
|
reg = <0>;
|
|
};
|