xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/net/fsl-fman.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)

=============================================================================
Freescale Frame Manager Device Bindings

CONTENTS
  - FMan Node
  - FMan Port Node
  - FMan MURAM Node
  - FMan dTSEC/XGEC/mEMAC Node
  - FMan IEEE 1588 Node
  - FMan MDIO Node
  - Example

=============================================================================
FMan Node

DESCRIPTION

Due to the fact that the FMan is an aggregation of sub-engines (ports, MACs,
etc.) the FMan node will have child nodes for each of them.

PROPERTIES

- compatible
		Usage: required
		Value type: <stringlist>
		Definition: Must include "fsl,fman"
		FMan version can be determined via FM_IP_REV_1 register in the
		FMan block. The offset is 0xc4 from the beginning of the
		Frame Processing Manager memory map (0xc3000 from the
		beginning of the FMan node).

- cell-index
		Usage: required
		Value type: <u32>
		Definition: Specifies the index of the FMan unit.

		The cell-index value may be used by the SoC, to identify the
		FMan unit in the SoC memory map. In the table below,
		there's a description of the cell-index use in each SoC:

		- P1023:
		register[bit]			FMan unit	cell-index
		============================================================
		DEVDISR[1]			1		0

		- P2041, P3041, P4080 P5020, P5040:
		register[bit]			FMan unit	cell-index
		============================================================
		DCFG_DEVDISR2[6]		1		0
		DCFG_DEVDISR2[14]		2		1
			(Second FM available only in P4080 and P5040)

		- B4860, T1040, T2080, T4240:
		register[bit]			FMan unit	cell-index
		============================================================
		DCFG_CCSR_DEVDISR2[24]		1		0
		DCFG_CCSR_DEVDISR2[25]		2		1
			(Second FM available only in T4240)

		DEVDISR, DCFG_DEVDISR2 and DCFG_CCSR_DEVDISR2 are located in
		the specific SoC "Device Configuration/Pin Control" Memory
		Map.

- reg
		Usage: required
		Value type: <prop-encoded-array>
		Definition: A standard property. Specifies the offset of the
		following configuration registers:
		- BMI configuration registers.
		- QMI configuration registers.
		- DMA configuration registers.
		- FPM configuration registers.
		- FMan controller configuration registers.

- ranges
		Usage: required
		Value type: <prop-encoded-array>
		Definition: A standard property.

- clocks
		Usage: required
		Value type: <prop-encoded-array>
		Definition: phandle for the fman input clock.

- clock-names
		usage: required
		Value type: <stringlist>
		Definition: "fmanclk" for the fman input clock.

- interrupts
		Usage: required
		Value type: <prop-encoded-array>
		Definition: A pair of IRQs are specified in this property.
		The first element is associated with the event interrupts and
		the second element is associated with the error interrupts.

- fsl,qman-channel-range
		Usage: required
		Value type: <prop-encoded-array>
		Definition: Specifies the range of the available dedicated
		channels in the FMan. The first cell specifies the beginning
		of the range and the second cell specifies the number of
		channels.
		Further information available at:
		"Work Queue (WQ) Channel Assignments in the QMan" section
		in DPAA Reference Manual.

- fsl,qman
- fsl,bman
		Usage: required
		Definition: See soc/fsl/qman.txt and soc/fsl/bman.txt

- fsl,erratum-a050385
		Usage: optional
		Value type: boolean
		Definition: A boolean property. Indicates the presence of the
		erratum A050385 which indicates that DMA transactions that are
		split can result in a FMan lock.

=============================================================================
FMan MURAM Node

DESCRIPTION

FMan Internal memory - shared between all the FMan modules.
It contains data structures that are common and written to or read by
the modules.
FMan internal memory is split into the following parts:
	Packet buffering (Tx/Rx FIFOs)
	Frames internal context

PROPERTIES

- compatible
		Usage: required
		Value type: <stringlist>
		Definition: Must include "fsl,fman-muram"

- ranges
		Usage: required
		Value type: <prop-encoded-array>
		Definition: A standard property.
		Specifies the multi-user memory offset and the size within
		the FMan.

EXAMPLE

muram@0 {
	compatible = "fsl,fman-muram";
	ranges = <0 0x000000 0x28000>;
};

=============================================================================
FMan Port Node

DESCRIPTION

The Frame Manager (FMan) supports several types of hardware ports:
	Ethernet receiver (RX)
	Ethernet transmitter (TX)
	Offline/Host command (O/H)

PROPERTIES

- compatible
		Usage: required
		Value type: <stringlist>
		Definition: A standard property.
		Must include one of the following:
			- "fsl,fman-v2-port-oh" for FManV2 OH ports
			- "fsl,fman-v2-port-rx" for FManV2 RX ports
			- "fsl,fman-v2-port-tx" for FManV2 TX ports
			- "fsl,fman-v3-port-oh" for FManV3 OH ports
			- "fsl,fman-v3-port-rx" for FManV3 RX ports
			- "fsl,fman-v3-port-tx" for FManV3 TX ports

- cell-index
		Usage: required
		Value type: <u32>
		Definition: Specifies the hardware port id.
		Each hardware port on the FMan has its own hardware PortID.
		Super set of all hardware Port IDs available at FMan Reference
		Manual under "FMan Hardware Ports in Freescale Devices" table.

		Each hardware port is assigned a 4KB, port-specific page in
		the FMan hardware port memory region (which is part of the
		FMan memory map). The first 4 KB in the FMan hardware ports
		memory region is used for what are called common registers.
		The subsequent 63 4KB pages are allocated to the hardware
		ports.
		The page of a specific port is determined by the cell-index.

- reg
		Usage: required
		Value type: <prop-encoded-array>
		Definition: There is one reg region describing the port
		configuration registers.

- fsl,fman-10g-port
		Usage: optional
		Value type: boolean
		Definition: The default port rate is 1G.
		If this property exists, the port is s 10G port.

- fsl,fman-best-effort-port
		Usage: optional
		Value type: boolean
		Definition: Can be defined only if 10G-support is set.
		This property marks a best-effort 10G port (10G port that
		may not be capable of line rate).

EXAMPLE

port@a8000 {
	cell-index = <0x28>;
	compatible = "fsl,fman-v2-port-tx";
	reg = <0xa8000 0x1000>;
};

port@88000 {
	cell-index = <0x8>;
	compatible = "fsl,fman-v2-port-rx";
	reg = <0x88000 0x1000>;
};

port@81000 {
	cell-index = <0x1>;
	compatible = "fsl,fman-v2-port-oh";
	reg = <0x81000 0x1000>;
};

=============================================================================
FMan dTSEC/XGEC/mEMAC Node

DESCRIPTION

mEMAC/dTSEC/XGEC are the Ethernet network interfaces

PROPERTIES

- compatible
		Usage: required
		Value type: <stringlist>
		Definition: A standard property.
		Must include one of the following:
		- "fsl,fman-dtsec" for dTSEC MAC
		- "fsl,fman-xgec" for XGEC MAC
		- "fsl,fman-memac" for mEMAC MAC

- cell-index
		Usage: required
		Value type: <u32>
		Definition: Specifies the MAC id.

		The cell-index value may be used by the FMan or the SoC, to
		identify the MAC unit in the FMan (or SoC) memory map.
		In the tables below there's a description of the cell-index
		use, there are two tables, one describes the use of cell-index
		by the FMan, the second describes the use by the SoC:

		1. FMan Registers

		FManV2:
		register[bit]		MAC		cell-index
		============================================================
		FM_EPI[16]		XGEC		8
		FM_EPI[16+n]		dTSECn		n-1
		FM_NPI[11+n]		dTSECn		n-1
			n = 1,..,5

		FManV3:
		register[bit]		MAC		cell-index
		============================================================
		FM_EPI[16+n]		mEMACn		n-1
		FM_EPI[25]		mEMAC10		9

		FM_NPI[11+n]		mEMACn		n-1
		FM_NPI[10]		mEMAC10		9
		FM_NPI[11]		mEMAC9		8
			n = 1,..8

		FM_EPI and FM_NPI are located in the FMan memory map.

		2. SoC registers:

		- P2041, P3041, P4080 P5020, P5040:
		register[bit]		FMan		MAC		cell
					Unit				index
		============================================================
		DCFG_DEVDISR2[7]	1		XGEC		8
		DCFG_DEVDISR2[7+n]	1		dTSECn		n-1
		DCFG_DEVDISR2[15]	2		XGEC		8
		DCFG_DEVDISR2[15+n]	2		dTSECn		n-1
			n = 1,..5

		- T1040, T2080, T4240, B4860:
		register[bit]			FMan	MAC		cell
						Unit			index
		============================================================
		DCFG_CCSR_DEVDISR2[n-1]		1	mEMACn		n-1
		DCFG_CCSR_DEVDISR2[11+n]	2	mEMACn		n-1
			n = 1,..6,9,10

		EVDISR, DCFG_DEVDISR2 and DCFG_CCSR_DEVDISR2 are located in
		the specific SoC "Device Configuration/Pin Control" Memory
		Map.

- reg
		Usage: required
		Value type: <prop-encoded-array>
		Definition: A standard property.

- fsl,fman-ports
		Usage: required
		Value type: <prop-encoded-array>
		Definition: An array of two phandles - the first references is
		the FMan RX port and the second is the TX port used by this
		MAC.

- ptp-timer
		Usage required
		Value type: <phandle>
		Definition: A phandle for 1EEE1588 timer.

- pcsphy-handle
		Usage required for "fsl,fman-memac" MACs
		Value type: <phandle>
		Definition: A phandle for pcsphy.

- tbi-handle
		Usage required for "fsl,fman-dtsec" MACs
		Value type: <phandle>
		Definition: A phandle for tbiphy.

EXAMPLE

fman1_tx28: port@a8000 {
	cell-index = <0x28>;
	compatible = "fsl,fman-v2-port-tx";
	reg = <0xa8000 0x1000>;
};

fman1_rx8: port@88000 {
	cell-index = <0x8>;
	compatible = "fsl,fman-v2-port-rx";
	reg = <0x88000 0x1000>;
};

ptp-timer: ptp_timer@fe000 {
	compatible = "fsl,fman-ptp-timer";
	reg = <0xfe000 0x1000>;
};

ethernet@e0000 {
	compatible = "fsl,fman-dtsec";
	cell-index = <0>;
	reg = <0xe0000 0x1000>;
	fsl,fman-ports = <&fman1_rx8 &fman1_tx28>;
	ptp-timer = <&ptp-timer>;
	tbi-handle = <&tbi0>;
};

============================================================================
FMan IEEE 1588 Node

Refer to Documentation/devicetree/bindings/ptp/ptp-qoriq.txt

=============================================================================
FMan MDIO Node

DESCRIPTION

The MDIO is a bus to which the PHY devices are connected.

PROPERTIES

- compatible
		Usage: required
		Value type: <stringlist>
		Definition: A standard property.
		Must include "fsl,fman-mdio" for 1 Gb/s MDIO from FMan v2.
		Must include "fsl,fman-xmdio" for 10 Gb/s MDIO from FMan v2.
		Must include "fsl,fman-memac-mdio" for 1/10 Gb/s MDIO from
		FMan v3.

- reg
		Usage: required
		Value type: <prop-encoded-array>
		Definition: A standard property.

- bus-frequency
		Usage: optional
		Value type: <u32>
		Definition: Specifies the external MDIO bus clock speed to
		be used, if different from the standard 2.5 MHz.
		This may be due to the standard speed being unsupported (e.g.
		due to a hardware problem), or to advertise that all relevant
		components in the system support a faster speed.

- interrupts
		Usage: required for external MDIO
		Value type: <prop-encoded-array>
		Definition: Event interrupt of external MDIO controller.

- fsl,fman-internal-mdio
		Usage: required for internal MDIO
		Value type: boolean
		Definition: Fman has internal MDIO for internal PCS(Physical
		Coding Sublayer) PHYs and external MDIO for external PHYs.
		The settings and programming routines for internal/external
		MDIO are different. Must be included for internal MDIO.

- fsl,erratum-a011043
		Usage: optional
		Value type: <boolean>
		Definition: Indicates the presence of the A011043 erratum
		describing that the MDIO_CFG[MDIO_RD_ER] bit may be falsely
		set when reading internal PCS registers. MDIO reads to
		internal PCS registers may result in having the
		MDIO_CFG[MDIO_RD_ER] bit set, even when there is no error and
		read data (MDIO_DATA[MDIO_DATA]) is correct.
		Software may get false read error when reading internal
		PCS registers through MDIO. As a workaround, all internal
		MDIO accesses should ignore the MDIO_CFG[MDIO_RD_ER] bit.

For internal PHY device on internal mdio bus, a PHY node should be created.
See the definition of the PHY node in booting-without-of.txt for an
example of how to define a PHY (Internal PHY has no interrupt line).
- For "fsl,fman-mdio" compatible internal mdio bus, the PHY is TBI PHY.
- For "fsl,fman-memac-mdio" compatible internal mdio bus, the PHY is PCS PHY,
  PCS PHY addr must be '0'.

EXAMPLE

Example for FMan v2 external MDIO:

mdio@f1000 {
	compatible = "fsl,fman-xmdio";
	reg = <0xf1000 0x1000>;
	interrupts = <101 2 0 0>;
};

Example for FMan v2 internal MDIO:

mdio@e3120 {
	compatible = "fsl,fman-mdio";
	reg = <0xe3120 0xee0>;
	fsl,fman-internal-mdio;

	tbi1: tbi-phy@8 {
		reg = <0x8>;
		device_type = "tbi-phy";
	};
};

Example for FMan v3 internal MDIO:

mdio@f1000 {
	compatible = "fsl,fman-memac-mdio";
	reg = <0xf1000 0x1000>;
	fsl,fman-internal-mdio;

	pcsphy6: ethernet-phy@0 {
		reg = <0x0>;
	};
};

=============================================================================
Example

fman@400000 {
	#address-cells = <1>;
	#size-cells = <1>;
	cell-index = <1>;
	compatible = "fsl,fman"
	ranges = <0 0x400000 0x100000>;
	reg = <0x400000 0x100000>;
	clocks = <&fman_clk>;
	clock-names = "fmanclk";
	interrupts = <
		96 2 0 0
		16 2 1 1>;
	fsl,qman-channel-range = <0x40 0xc>;

	muram@0 {
		compatible = "fsl,fman-muram";
		reg = <0x0 0x28000>;
	};

	port@81000 {
		cell-index = <1>;
		compatible = "fsl,fman-v2-port-oh";
		reg = <0x81000 0x1000>;
	};

	port@82000 {
		cell-index = <2>;
		compatible = "fsl,fman-v2-port-oh";
		reg = <0x82000 0x1000>;
	};

	port@83000 {
		cell-index = <3>;
		compatible = "fsl,fman-v2-port-oh";
		reg = <0x83000 0x1000>;
	};

	port@84000 {
		cell-index = <4>;
		compatible = "fsl,fman-v2-port-oh";
		reg = <0x84000 0x1000>;
	};

	port@85000 {
		cell-index = <5>;
		compatible = "fsl,fman-v2-port-oh";
		reg = <0x85000 0x1000>;
	};

	port@86000 {
		cell-index = <6>;
		compatible = "fsl,fman-v2-port-oh";
		reg = <0x86000 0x1000>;
	};

	fman1_rx_0x8: port@88000 {
		cell-index = <0x8>;
		compatible = "fsl,fman-v2-port-rx";
		reg = <0x88000 0x1000>;
	};

	fman1_rx_0x9: port@89000 {
		cell-index = <0x9>;
		compatible = "fsl,fman-v2-port-rx";
		reg = <0x89000 0x1000>;
	};

	fman1_rx_0xa: port@8a000 {
		cell-index = <0xa>;
		compatible = "fsl,fman-v2-port-rx";
		reg = <0x8a000 0x1000>;
	};

	fman1_rx_0xb: port@8b000 {
		cell-index = <0xb>;
		compatible = "fsl,fman-v2-port-rx";
		reg = <0x8b000 0x1000>;
	};

	fman1_rx_0xc: port@8c000 {
		cell-index = <0xc>;
		compatible = "fsl,fman-v2-port-rx";
		reg = <0x8c000 0x1000>;
	};

	fman1_rx_0x10: port@90000 {
		cell-index = <0x10>;
		compatible = "fsl,fman-v2-port-rx";
		reg = <0x90000 0x1000>;
	};

	fman1_tx_0x28: port@a8000 {
		cell-index = <0x28>;
		compatible = "fsl,fman-v2-port-tx";
		reg = <0xa8000 0x1000>;
	};

	fman1_tx_0x29: port@a9000 {
		cell-index = <0x29>;
		compatible = "fsl,fman-v2-port-tx";
		reg = <0xa9000 0x1000>;
	};

	fman1_tx_0x2a: port@aa000 {
		cell-index = <0x2a>;
		compatible = "fsl,fman-v2-port-tx";
		reg = <0xaa000 0x1000>;
	};

	fman1_tx_0x2b: port@ab000 {
		cell-index = <0x2b>;
		compatible = "fsl,fman-v2-port-tx";
		reg = <0xab000 0x1000>;
	};

	fman1_tx_0x2c: port@ac0000 {
		cell-index = <0x2c>;
		compatible = "fsl,fman-v2-port-tx";
		reg = <0xac000 0x1000>;
	};

	fman1_tx_0x30: port@b0000 {
		cell-index = <0x30>;
		compatible = "fsl,fman-v2-port-tx";
		reg = <0xb0000 0x1000>;
	};

	ethernet@e0000 {
		compatible = "fsl,fman-dtsec";
		cell-index = <0>;
		reg = <0xe0000 0x1000>;
		fsl,fman-ports = <&fman1_rx_0x8 &fman1_tx_0x28>;
		tbi-handle = <&tbi5>;
	};

	ethernet@e2000 {
		compatible = "fsl,fman-dtsec";
		cell-index = <1>;
		reg = <0xe2000 0x1000>;
		fsl,fman-ports = <&fman1_rx_0x9 &fman1_tx_0x29>;
		tbi-handle = <&tbi6>;
	};

	ethernet@e4000 {
		compatible = "fsl,fman-dtsec";
		cell-index = <2>;
		reg = <0xe4000 0x1000>;
		fsl,fman-ports = <&fman1_rx_0xa &fman1_tx_0x2a>;
		tbi-handle = <&tbi7>;
	};

	ethernet@e6000 {
		compatible = "fsl,fman-dtsec";
		cell-index = <3>;
		reg = <0xe6000 0x1000>;
		fsl,fman-ports = <&fman1_rx_0xb &fman1_tx_0x2b>;
		tbi-handle = <&tbi8>;
	};

	ethernet@e8000 {
		compatible = "fsl,fman-dtsec";
		cell-index = <4>;
		reg = <0xf0000 0x1000>;
		fsl,fman-ports = <&fman1_rx_0xc &fman1_tx_0x2c>;
		tbi-handle = <&tbi9>;

	ethernet@f0000 {
		cell-index = <8>;
		compatible = "fsl,fman-xgec";
		reg = <0xf0000 0x1000>;
		fsl,fman-ports = <&fman1_rx_0x10 &fman1_tx_0x30>;
	};

	ptp-timer@fe000 {
		compatible = "fsl,fman-ptp-timer";
		reg = <0xfe000 0x1000>;
	};

	mdio@f1000 {
		compatible = "fsl,fman-xmdio";
		reg = <0xf1000 0x1000>;
		interrupts = <101 2 0 0>;
	};
};