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dt-bindings: net: update Marvell PPv2 binding for PPv2.2 support

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The Marvell PPv2 Device Tree binding was so far only used to describe
the PPv2.1 network controller, used in the Marvell Armada 375.

A new version of this IP block, PPv2.2 is used in the Marvell Armada
7K/8K processor. This commit extends the existing binding so that it can
also be used to describe PPv2.2 hardware.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Petazzoni 2017-03-07 16:52:59 +01:00 committed by David S. Miller
parent 3f2aa566d4
commit aee441193e
1 changed files with 51 additions and 11 deletions
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62
Documentation/devicetree/bindings/net/marvell-pp2.txt
View File

@ -1,17 +1,28 @@
* Marvell Armada 375 Ethernet Controller (PPv2)
* Marvell Armada 375 Ethernet Controller (PPv2.1)
Marvell Armada 7K/8K Ethernet Controller (PPv2.2)
Required properties:
- compatible: should be "marvell,armada-375-pp2"
- compatible: should be one of:
"marvell,armada-375-pp2"
"marvell,armada-7k-pp2"
- reg: addresses and length of the register sets for the device.
Must contain the following register sets:
For "marvell,armada-375-pp2", must contain the following register
sets:
- common controller registers
- LMS registers
In addition, at least one port register set is required.
- clocks: a pointer to the reference clocks for this device, consequently:
- main controller clock
- GOP clock
- clock-names: names of used clocks, must be "pp_clk" and "gop_clk".
- one register area per Ethernet port
For "marvell,armada-7k-pp2", must contain the following register
sets:
- packet processor registers
- networking interfaces registers
- clocks: pointers to the reference clocks for this device, consequently:
- main controller clock (for both armada-375-pp2 and armada-7k-pp2)
- GOP clock (for both armada-375-pp2 and armada-7k-pp2)
- MG clock (only for armada-7k-pp2)
- clock-names: names of used clocks, must be "pp_clk", "gop_clk" and
"mg_clk" (the latter only for armada-7k-pp2).
The ethernet ports are represented by subnodes. At least one port is
required.
@ -19,8 +30,10 @@ required.
Required properties (port):
- interrupts: interrupt for the port
- port-id: should be '0' or '1' for ethernet ports, and '2' for the
loopback port
- port-id: ID of the port from the MAC point of view
- gop-port-id: only for marvell,armada-7k-pp2, ID of the port from the
GOP (Group Of Ports) point of view. This ID is used to index the
per-port registers in the second register area.
- phy-mode: See ethernet.txt file in the same directory
Optional properties (port):
@ -29,7 +42,7 @@ Optional properties (port):
- phy: a phandle to a phy node defining the PHY address (as the reg
property, a single integer).
Example:
Example for marvell,armada-375-pp2:
ethernet@f0000 {
compatible = "marvell,armada-375-pp2";
@ -57,3 +70,30 @@ ethernet@f0000 {
phy-mode = "gmii";
};
};
Example for marvell,armada-7k-pp2:
cpm_ethernet: ethernet@0 {
compatible = "marvell,armada-7k-pp22";
reg = <0x0 0x100000>, <0x129000 0xb000>;
clocks = <&cpm_syscon0 1 3>, <&cpm_syscon0 1 9>, <&cpm_syscon0 1 5>;
clock-names = "pp_clk", "gop_clk", "gp_clk";
eth0: eth0 {
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
port-id = <0>;
gop-port-id = <0>;
};
eth1: eth1 {
interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
port-id = <1>;
gop-port-id = <2>;
};
eth2: eth2 {
interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
port-id = <2>;
gop-port-id = <3>;
};
};