cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

apm-xgene-enet.txt (3320B)


      1APM X-Gene SoC Ethernet nodes
      2
      3Ethernet nodes are defined to describe on-chip ethernet interfaces in
      4APM X-Gene SoC.
      5
      6Required properties for all the ethernet interfaces:
      7- compatible: Should state binding information from the following list,
      8  - "apm,xgene-enet":    RGMII based 1G interface
      9  - "apm,xgene1-sgenet": SGMII based 1G interface
     10  - "apm,xgene1-xgenet": XFI based 10G interface
     11- reg: Address and length of the register set for the device. It contains the
     12  information of registers in the same order as described by reg-names
     13- reg-names: Should contain the register set names
     14  - "enet_csr": Ethernet control and status register address space
     15  - "ring_csr": Descriptor ring control and status register address space
     16  - "ring_cmd": Descriptor ring command register address space
     17- interrupts: Two interrupt specifiers can be specified.
     18  - First is the Rx interrupt.  This irq is mandatory.
     19  - Second is the Tx completion interrupt.
     20    This is supported only on SGMII based 1GbE and 10GbE interfaces.
     21- channel: Ethernet to CPU, start channel (prefetch buffer) number
     22  - Must map to the first irq and irqs must be sequential
     23- port-id: Port number (0 or 1)
     24- clocks: Reference to the clock entry.
     25- local-mac-address: MAC address assigned to this device
     26- phy-connection-type: Interface type between ethernet device and PHY device
     27
     28Required properties for ethernet interfaces that have external PHY:
     29- phy-handle: Reference to a PHY node connected to this device
     30
     31- mdio: Device tree subnode with the following required properties:
     32  - compatible: Must be "apm,xgene-mdio".
     33  - #address-cells: Must be <1>.
     34  - #size-cells: Must be <0>.
     35
     36  For the phy on the mdio bus, there must be a node with the following fields:
     37  - compatible: PHY identifier.  Please refer ./phy.txt for the format.
     38  - reg: The ID number for the phy.
     39
     40Optional properties:
     41- status: Should be "ok" or "disabled" for enabled/disabled. Default is "ok".
     42- tx-delay: Delay value for RGMII bridge TX clock.
     43	    Valid values are between 0 to 7, that maps to
     44	    417, 717, 1020, 1321, 1611, 1913, 2215, 2514 ps
     45	    Default value is 4, which corresponds to 1611 ps
     46- rx-delay: Delay value for RGMII bridge RX clock.
     47	    Valid values are between 0 to 7, that maps to
     48	    273, 589, 899, 1222, 1480, 1806, 2147, 2464 ps
     49	    Default value is 2, which corresponds to 899 ps
     50- rxlos-gpios: Input gpio from SFP+ module to indicate availability of
     51	       incoming signal.
     52
     53
     54Example:
     55	menetclk: menetclk {
     56		compatible = "apm,xgene-device-clock";
     57		clock-output-names = "menetclk";
     58		status = "ok";
     59	};
     60
     61	menet: ethernet@17020000 {
     62		compatible = "apm,xgene-enet";
     63		status = "disabled";
     64		reg = <0x0 0x17020000 0x0 0xd100>,
     65		      <0x0 0x17030000 0x0 0x400>,
     66		      <0x0 0x10000000 0x0 0x200>;
     67		reg-names = "enet_csr", "ring_csr", "ring_cmd";
     68		interrupts = <0x0 0x3c 0x4>;
     69		port-id = <0>;
     70		clocks = <&menetclk 0>;
     71		local-mac-address = [00 01 73 00 00 01];
     72		phy-connection-type = "rgmii";
     73		phy-handle = <&menetphy>;
     74		mdio {
     75			compatible = "apm,xgene-mdio";
     76			#address-cells = <1>;
     77			#size-cells = <0>;
     78			menetphy: menetphy@3 {
     79				compatible = "ethernet-phy-id001c.c915";
     80				reg = <0x3>;
     81			};
     82
     83		};
     84	};
     85
     86/* Board-specific peripheral configurations */
     87&menet {
     88	tx-delay = <4>;
     89	rx-delay = <2>;
     90        status = "ok";
     91};