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* Broadcom Starfighter 2 integrated swich
Required properties:
- compatible: should be one of
"brcm,bcm7445-switch-v4.0"
"brcm,bcm7278-switch-v4.0"
"brcm,bcm7278-switch-v4.8"
- reg: addresses and length of the register sets for the device, must be 6
pairs of register addresses and lengths
- interrupts: interrupts for the devices, must be two interrupts
- #address-cells: must be 1, see dsa/dsa.txt
- #size-cells: must be 0, see dsa/dsa.txt
Deprecated binding required properties:
- dsa,mii-bus: phandle to the MDIO bus controller, see dsa/dsa.txt
- dsa,ethernet: phandle to the CPU network interface controller, see dsa/dsa.txt
- #address-cells: must be 2, see dsa/dsa.txt
Subnodes:
The integrated switch subnode should be specified according to the binding
described in dsa/dsa.txt.
Optional properties:
- reg-names: litteral names for the device base register addresses, when present
must be: "core", "reg", "intrl2_0", "intrl2_1", "fcb", "acb"
- interrupt-names: litternal names for the device interrupt lines, when present
must be: "switch_0" and "switch_1"
- brcm,num-gphy: specify the maximum number of integrated gigabit PHYs in the
switch
- brcm,num-rgmii-ports: specify the maximum number of RGMII interfaces supported
by the switch
- brcm,fcb-pause-override: boolean property, if present indicates that the switch
supports Failover Control Block pause override capability
- brcm,acb-packets-inflight: boolean property, if present indicates that the switch
Admission Control Block supports reporting the number of packets in-flight in a
switch queue
- resets: a single phandle and reset identifier pair. See
Documentation/devicetree/bindings/reset/reset.txt for details.
- reset-names: If the "reset" property is specified, this property should have
the value "switch" to denote the switch reset line.
Port subnodes:
Optional properties:
- brcm,use-bcm-hdr: boolean property, if present, indicates that the switch
port has Broadcom tags enabled (per-packet metadata)
Example:
switch_top@f0b00000 {
compatible = "simple-bus";
#size-cells = <1>;
#address-cells = <1>;
ranges = <0 0xf0b00000 0x40804>;
ethernet_switch@0 {
compatible = "brcm,bcm7445-switch-v4.0";
#size-cells = <0>;
#address-cells = <1>;
reg = <0x0 0x40000
0x40000 0x110
0x40340 0x30
0x40380 0x30
0x40400 0x34
0x40600 0x208>;
reg-names = "core", "reg", intrl2_0", "intrl2_1",
"fcb, "acb";
interrupts = <0 0x18 0
0 0x19 0>;
brcm,num-gphy = <1>;
brcm,num-rgmii-ports = <2>;
brcm,fcb-pause-override;
brcm,acb-packets-inflight;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
label = "gphy";
reg = <0>;
};
};
};
};
Example using the old DSA DeviceTree binding:
switch_top@f0b00000 {
compatible = "simple-bus";
#size-cells = <1>;
#address-cells = <1>;
ranges = <0 0xf0b00000 0x40804>;
ethernet_switch@0 {
compatible = "brcm,bcm7445-switch-v4.0";
#size-cells = <0>;
#address-cells = <2>;
reg = <0x0 0x40000
0x40000 0x110
0x40340 0x30
0x40380 0x30
0x40400 0x34
0x40600 0x208>;
interrupts = <0 0x18 0
0 0x19 0>;
brcm,num-gphy = <1>;
brcm,num-rgmii-ports = <2>;
brcm,fcb-pause-override;
brcm,acb-packets-inflight;
...
switch@0 {
reg = <0 0>;
#size-cells = <0>;
#address-cells <1>;
port@0 {
label = "gphy";
reg = <0>;
brcm,use-bcm-hdr;
};
...
};
};
};
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