DT: net: document Ethernet bindings in one place

This patch is an attempt to gather the Ethernet related bindings in one file,
like it's done in the MMC and some other subsystems. It should save some of
the trouble of documenting several properties over and over in each binding
document, instead only making reference to the main file.

I have used the Embedded Power Architecture(TM) Platform Requirements (ePAPR)
standard as a base for the properties description, also documenting some ad-hoc
properties that have been introduced over time despite having direct analogs in
ePAPR.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 9 deletions

diff --git a/Documentation/devicetree/bindings/net/arc_emac.txt b/Documentation/devicetree/bindings/net/arc_emac.txt
index bcbc3f009158..7fbb027218a1 100644
--- a/Documentation/devicetree/bindings/net/arc_emac.txt
+++ b/Documentation/devicetree/bindings/net/arc_emac.txt
@@ -6,19 +6,12 @@ Required properties:
 - interrupts: Should contain the EMAC interrupts
 - clock-frequency: CPU frequency. It is needed to calculate and set polling
 period of EMAC.
-- max-speed: Maximum supported data-rate in Mbit/s. In some HW configurations
-bandwidth of external memory controller might be a limiting factor. That's why
-it's required to specify which data-rate is supported on current SoC or FPGA.
-For example if only 10 Mbit/s is supported (10BASE-T) set "10". If 100 Mbit/s is
-supported (100BASE-TX) set "100".
-- phy: PHY device attached to the EMAC via MDIO bus
+- max-speed: see ethernet.txt file in the same directory.
+- phy: see ethernet.txt file in the same directory.
 
 Child nodes of the driver are the individual PHY devices connected to the
 MDIO bus. They must have a "reg" property given the PHY address on the MDIO bus.
 
-Optional properties:
-- mac-address: 6 bytes, mac address
-
 Examples:
 
 	ethernet@c0fc2000 {