atmel,sam-gmac

Vendor: Atmel Corporation

Description

Atmel SAM-family GMAC Ethernet

Properties

Properties not inherited from the base binding file.

Name

Type

Details

num-queues

int

 
Number of hardware TX and RX queues

This property is required.

max-frame-size

int

 
Maximum transfer unit (IEEE defined MTU), rather than the maximum frame size (there\'s contradiction in the Devicetree Specification). The current supported values are 1518, 1536 and 10240 (jumbo frames).

Default value: 1518

max-speed

int

 
Specifies maximum speed in Mbit/s supported by the device.

Default value: 100

phy-connection-type

string

 
Operation mode of the PHY interface

Default value: rmii

Legal values: 'rmii', 'mii'

pinctrl-0

phandles

 
PIO pin configuration for the various GMAC signals that include
GTXCK, GTXEN, GTX[3..0], GTXER, GRXCK, GRXDV, GRX[3..0], GRXER,
GCRS, GCOL, GMDC, and GMDIO.  Which signals are used vary based
on if the PHY connection is MII or RMII (see datasheet for more
details).  We expect that the phandles will reference pinctrl nodes.
These nodes will have a nodelabel that matches the Atmel SoC HAL
defines and be of the form p<port><pin><periph>_<inst>_<signal>.

For example the GMAC on SAME7x would be for RMII
   pinctrl-0 = <&pd0a_gmac_gtxck &pd1a_gmac_gtxen
                &pd2a_gmac_gtx0 &pd3a_gmac_gtx1
                &pd4a_gmac_grxdv &pd5a_gmac_grx0
                &pd6a_gmac_grx1 &pd7a_gmac_grxer
                &pd8a_gmac_gmdc &pd9a_gmac_gmdio>;

local-mac-address

uint8-array

 
Specifies the MAC address that was assigned to the network device

zephyr,random-mac-address

boolean

 
Use a random MAC address generated when the driver is initialized.
Note that using this choice and rebooting a board may leave stale
MAC address in peers' ARP caches and lead to issues and delays in
communication.  (Use "ip neigh flush all" on Linux peers to clear
ARP cache.)

It is driver specific how the OUI octets are handled.

If set we ignore any setting of the local-mac-address property.