Fixed MTP to work with TWRP

Documentation/devicetree/bindings/net/fsl-tsec-phy.txt

@@ -0,0 +1,138 @@
+* MDIO IO device
+
+The MDIO is a bus to which the PHY devices are connected.  For each
+device that exists on this bus, a child 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.
+
+Required properties:
+  - reg : Offset and length of the register set for the device
+  - compatible : Should define the compatible device type for the
+    mdio.  Currently, this is most likely to be "fsl,gianfar-mdio"
+
+Example:
+
+	mdio@24520 {
+		reg = <24520 20>;
+		compatible = "fsl,gianfar-mdio";
+
+		ethernet-phy@0 {
+			......
+		};
+	};
+
+* TBI Internal MDIO bus
+
+As of this writing, every tsec is associated with an internal TBI PHY.
+This PHY is accessed through the local MDIO bus.  These buses are defined
+similarly to the mdio buses, except they are compatible with "fsl,gianfar-tbi".
+The TBI PHYs underneath them are similar to normal PHYs, but the reg property
+is considered instructive, rather than descriptive.  The reg property should
+be chosen so it doesn't interfere with other PHYs on the bus.
+
+* Gianfar-compatible ethernet nodes
+
+Properties:
+
+  - device_type : Should be "network"
+  - model : Model of the device.  Can be "TSEC", "eTSEC", or "FEC"
+  - compatible : Should be "gianfar"
+  - reg : Offset and length of the register set for the device
+  - interrupts : For FEC devices, the first interrupt is the device's
+    interrupt.  For TSEC and eTSEC devices, the first interrupt is
+    transmit, the second is receive, and the third is error.
+  - phy-handle : See ethernet.txt file in the same directory.
+  - fixed-link : See fixed-link.txt in the same directory.
+  - phy-connection-type : See ethernet.txt file in the same directory.
+    This property is only really needed if the connection is of type
+    "rgmii-id", as all other connection types are detected by hardware.
+  - fsl,magic-packet : If present, indicates that the hardware supports
+    waking up via magic packet.
+  - bd-stash : If present, indicates that the hardware supports stashing
+    buffer descriptors in the L2.
+  - rx-stash-len : Denotes the number of bytes of a received buffer to stash
+    in the L2.
+  - rx-stash-idx : Denotes the index of the first byte from the received
+    buffer to stash in the L2.
+
+Example:
+	ethernet@24000 {
+		device_type = "network";
+		model = "TSEC";
+		compatible = "gianfar";
+		reg = <0x24000 0x1000>;
+		local-mac-address = [ 00 E0 0C 00 73 00 ];
+		interrupts = <29 2 30 2 34 2>;
+		interrupt-parent = <&mpic>;
+		phy-handle = <&phy0>
+	};
+
+* Gianfar PTP clock nodes
+
+General Properties:
+
+  - compatible   Should be "fsl,etsec-ptp"
+  - reg          Offset and length of the register set for the device
+  - interrupts   There should be at least two interrupts. Some devices
+                 have as many as four PTP related interrupts.
+
+Clock Properties:
+
+  - fsl,cksel        Timer reference clock source.
+  - fsl,tclk-period  Timer reference clock period in nanoseconds.
+  - fsl,tmr-prsc     Prescaler, divides the output clock.
+  - fsl,tmr-add      Frequency compensation value.
+  - fsl,tmr-fiper1   Fixed interval period pulse generator.
+  - fsl,tmr-fiper2   Fixed interval period pulse generator.
+  - fsl,max-adj      Maximum frequency adjustment in parts per billion.
+
+  These properties set the operational parameters for the PTP
+  clock. You must choose these carefully for the clock to work right.
+  Here is how to figure good values:
+
+  TimerOsc     = selected reference clock   MHz
+  tclk_period  = desired clock period       nanoseconds
+  NominalFreq  = 1000 / tclk_period         MHz
+  FreqDivRatio = TimerOsc / NominalFreq     (must be greater that 1.0)
+  tmr_add      = ceil(2^32 / FreqDivRatio)
+  OutputClock  = NominalFreq / tmr_prsc     MHz
+  PulseWidth   = 1 / OutputClock            microseconds
+  FiperFreq1   = desired frequency in Hz
+  FiperDiv1    = 1000000 * OutputClock / FiperFreq1
+  tmr_fiper1   = tmr_prsc * tclk_period * FiperDiv1 - tclk_period
+  max_adj      = 1000000000 * (FreqDivRatio - 1.0) - 1
+
+  The calculation for tmr_fiper2 is the same as for tmr_fiper1. The
+  driver expects that tmr_fiper1 will be correctly set to produce a 1
+  Pulse Per Second (PPS) signal, since this will be offered to the PPS
+  subsystem to synchronize the Linux clock.
+
+  Reference clock source is determined by the value, which is holded
+  in CKSEL bits in TMR_CTRL register. "fsl,cksel" property keeps the
+  value, which will be directly written in those bits, that is why,
+  according to reference manual, the next clock sources can be used:
+
+  <0> - external high precision timer reference clock (TSEC_TMR_CLK
+        input is used for this purpose);
+  <1> - eTSEC system clock;
+  <2> - eTSEC1 transmit clock;
+  <3> - RTC clock input.
+
+  When this attribute is not used, eTSEC system clock will serve as
+  IEEE 1588 timer reference clock.
+
+Example:
+
+	ptp_clock@24E00 {
+		compatible = "fsl,etsec-ptp";
+		reg = <0x24E00 0xB0>;
+		interrupts = <12 0x8 13 0x8>;
+		interrupt-parent = < &ipic >;
+		fsl,cksel       = <1>;
+		fsl,tclk-period = <10>;
+		fsl,tmr-prsc    = <100>;
+		fsl,tmr-add     = <0x999999A4>;
+		fsl,tmr-fiper1  = <0x3B9AC9F6>;
+		fsl,tmr-fiper2  = <0x00018696>;
+		fsl,max-adj     = <659999998>;
+	};