Merge tag 'x86_urgent_for_v5.13_rc3' of git://git.kernel.org/pub/scm/linux/kernel...

[mirror_ubuntu-jammy-kernel.git] / Documentation / devicetree / bindings / net / altera_tse.txt

* Altera Triple-Speed Ethernet MAC driver (TSE)

Required properties:
- compatible: Should be "altr,tse-1.0" for legacy SGDMA based TSE, and should
		be "altr,tse-msgdma-1.0" for the preferred MSGDMA based TSE.
		ALTR is supported for legacy device trees, but is deprecated.
		altr should be used for all new designs.
- reg: Address and length of the register set for the device. It contains
  the information of registers in the same order as described by reg-names
- reg-names: Should contain the reg names
  "control_port": MAC configuration space region
  "tx_csr":       xDMA Tx dispatcher control and status space region
  "tx_desc":      MSGDMA Tx dispatcher descriptor space region
  "rx_csr" :      xDMA Rx dispatcher control and status space region
  "rx_desc":      MSGDMA Rx dispatcher descriptor space region
  "rx_resp":      MSGDMA Rx dispatcher response space region
  "s1":		  SGDMA descriptor memory
- interrupts: Should contain the TSE interrupts and it's mode.
- interrupt-names: Should contain the interrupt names
  "rx_irq":       xDMA Rx dispatcher interrupt
  "tx_irq":       xDMA Tx dispatcher interrupt
- rx-fifo-depth: MAC receive FIFO buffer depth in bytes
- tx-fifo-depth: MAC transmit FIFO buffer depth in bytes
- phy-mode: See ethernet.txt in the same directory.
- phy-handle: See ethernet.txt in the same directory.
- phy-addr: See ethernet.txt in the same directory. A configuration should
		include phy-handle or phy-addr.
- altr,has-supplementary-unicast:
		If present, TSE supports additional unicast addresses.
		Otherwise additional unicast addresses are not supported.
- altr,has-hash-multicast-filter:
		If present, TSE supports a hash based multicast filter.
		Otherwise, hash-based multicast filtering is not supported.

- mdio device tree subnode: When the TSE has a phy connected to its local
		mdio, there must be device tree subnode with the following
		required properties:

	- compatible: Must be "altr,tse-mdio".
	- #address-cells: Must be <1>.
	- #size-cells: Must be <0>.

	For each phy on the mdio bus, there must be a node with the following
	fields:

	- reg: phy id used to communicate to phy.
	- device_type: Must be "ethernet-phy".

The MAC address will be determined using the optional properties defined in
ethernet.txt.

Example:

	tse_sub_0_eth_tse_0: ethernet@1,00000000 {
		compatible = "altr,tse-msgdma-1.0";
		reg =	<0x00000001 0x00000000 0x00000400>,
			<0x00000001 0x00000460 0x00000020>,
			<0x00000001 0x00000480 0x00000020>,
			<0x00000001 0x000004A0 0x00000008>,
			<0x00000001 0x00000400 0x00000020>,
			<0x00000001 0x00000420 0x00000020>;
		reg-names = "control_port", "rx_csr", "rx_desc", "rx_resp", "tx_csr", "tx_desc";
		interrupt-parent = <&hps_0_arm_gic_0>;
		interrupts = <0 41 4>, <0 40 4>;
		interrupt-names = "rx_irq", "tx_irq";
		rx-fifo-depth = <2048>;
		tx-fifo-depth = <2048>;
		address-bits = <48>;
		max-frame-size = <1500>;
		local-mac-address = [ 00 00 00 00 00 00 ];
		phy-mode = "gmii";
		altr,has-supplementary-unicast;
		altr,has-hash-multicast-filter;
		phy-handle = <&phy0>;
		mdio {
			compatible = "altr,tse-mdio";
			#address-cells = <1>;
			#size-cells = <0>;
			phy0: ethernet-phy@0 {
				reg = <0x0>;
				device_type = "ethernet-phy";
			};

			phy1: ethernet-phy@1 {
				reg = <0x1>;
				device_type = "ethernet-phy";
			};

		};
	};

	tse_sub_1_eth_tse_0: ethernet@1,00001000 {
		compatible = "altr,tse-msgdma-1.0";
		reg = 	<0x00000001 0x00001000 0x00000400>,
			<0x00000001 0x00001460 0x00000020>,
			<0x00000001 0x00001480 0x00000020>,
			<0x00000001 0x000014A0 0x00000008>,
			<0x00000001 0x00001400 0x00000020>,
			<0x00000001 0x00001420 0x00000020>;
		reg-names = "control_port", "rx_csr", "rx_desc", "rx_resp", "tx_csr", "tx_desc";
		interrupt-parent = <&hps_0_arm_gic_0>;
		interrupts = <0 43 4>, <0 42 4>;
		interrupt-names = "rx_irq", "tx_irq";
		rx-fifo-depth = <2048>;
		tx-fifo-depth = <2048>;
		address-bits = <48>;
		max-frame-size = <1500>;
		local-mac-address = [ 00 00 00 00 00 00 ];
		phy-mode = "gmii";
		altr,has-supplementary-unicast;
		altr,has-hash-multicast-filter;
		phy-handle = <&phy1>;
	};