mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-15 07:43:07 +00:00
75ae51c593
Change-Id: I29094afb646744afe78ad09bb7479894d1a65e96 Signed-off-by: Igal Liberman <igall@marvell.com>
68 lines
2.2 KiB
Text
68 lines
2.2 KiB
Text
Marvell COMPHY SerDes lane bindings
|
|
=====================================
|
|
|
|
The COMPHY node includes a description of the COMPHY SerDes lane configuration.
|
|
The COMPHY driver initializes the MUX of the SerDes lanes, and powers up the SerDes
|
|
by dependencies on the FDT blob configurations
|
|
|
|
Mandatory properties:
|
|
SoC specific:
|
|
- compatible:
|
|
The compatible should include "marvell,mvebu-comphy"
|
|
and the COMPHY per chip compatible:
|
|
"marvell,comphy-cp110" for CP110 available in Aramda70x0/80x0.
|
|
The COMPHY per chip used to set which MUX configuration to use, and COMPHY power-up revision.
|
|
- reg: Base address and size of the COMPHY and hpipe units.
|
|
- max-lanes: Maximum number of comphy lanes.
|
|
- mux-bitcount: Number of bits that are allocated for every MUX in the COMPHY-selector register.
|
|
Board specific:
|
|
- PHY: Entry that include the configuration of the PHY.
|
|
Every PHY should have the below parameters:
|
|
- phy-type: the mode of the PHY
|
|
Possible modes located in include/dt-bindings/comphy/comphy_data.h
|
|
Optional properties:
|
|
- phy-speed: the speed of the PHY
|
|
Possible speeds values located in include/dt-bindings/comphy/comphy_data.h
|
|
- phy-invert: Polarity invert (COMPHY_POLARITY_TXD_INVERT/COMPHY_POLARITY_RXD_INVERT)
|
|
the possible bits under include/dt-bindings/comphy/comphy_data.h
|
|
- clk-src: Set the clock source of PCIe, if configured to PCIe clock output
|
|
This relevant for SerDes lane 5 only (by default, lane 4 is the clock source)
|
|
for Armada-7040 boards.
|
|
- endpoint: Optional boolean specifying this SerDes should be configured as PCIe endpoint.
|
|
|
|
Example:
|
|
cpm_comphy: comphy@441000 {
|
|
compatible = "marvell,mvebu-comphy", "marvell,comphy-cp110";
|
|
reg = <0x441000 0x8>, <0x120000 0x8>;
|
|
mux-bitcount = <4>;
|
|
max-lanes = <6>;
|
|
|
|
/*
|
|
* CP110 Serdes Configuration:
|
|
* Lane 0: SGMII1
|
|
* Lane 1: SATA 0
|
|
* Lane 2: USB HOST 0
|
|
* Lane 3: SATA1
|
|
* Lane 4: SFI (10G)
|
|
* Lane 5: SGMII2
|
|
*/
|
|
phy0 {
|
|
phy-type = <COMPHY_TYPE_SGMII1>;
|
|
phy-speed = <COMPHY_SPEED_1_25G>;
|
|
};
|
|
phy1 {
|
|
phy-type = <COMPHY_TYPE_SATA0>;
|
|
};
|
|
phy2 {
|
|
phy-type = <COMPHY_TYPE_USB3_HOST0>;
|
|
};
|
|
phy3 {
|
|
phy-type = <COMPHY_TYPE_SATA1>;
|
|
};
|
|
phy4 {
|
|
phy-type = <COMPHY_TYPE_SFI>;
|
|
};
|
|
phy5 {
|
|
phy-type = <COMPHY_TYPE_SGMII2>;
|
|
};
|
|
};
|