EVMK2H: Trouble using SGMII 2 (eth2) in Linux

/*
 * Device Tree Source for Keystone 2 Hawking Netcp driver
 *
 * Copyright 2015 Texas Instruments, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

qmss: qmss@2a40000 {
	compatible = "ti,keystone-navigator-qmss";
	dma-coherent;
	#address-cells = <1>;
	#size-cells = <1>;
	clocks = <&chipclk13>;
	ranges;
	queue-range	= <0 0x4000>;
	linkram0	= <0x100000 0x8000>;
	linkram1	= <0x0 0x10000>;

	qmgrs {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;
		qmgr0 {
			managed-queues = <0 0x2000>;
			reg = <0x2a40000 0x20000>,
			      <0x2a06000 0x400>,
			      <0x2a02000 0x1000>,
			      <0x2a03000 0x1000>,
			      <0x23a80000 0x20000>,
			      <0x2a80000 0x20000>;
			reg-names = "peek", "status", "config",
				    "region", "push", "pop";
		};

		qmgr1 {
			managed-queues = <0x2000 0x2000>;
			reg = <0x2a60000 0x20000>,
			      <0x2a06400 0x400>,
			      <0x2a04000 0x1000>,
			      <0x2a05000 0x1000>,
			      <0x23aa0000 0x20000>,
			      <0x2aa0000 0x20000>;
			reg-names = "peek", "status", "config",
				    "region", "push", "pop";
		};
	};

	queue-pools {
		qpend {
			qpend-0 {
				qrange = <658 8>;
				interrupts =<0 40 0xf04 0 41 0xf04 0 42 0xf04
					     0 43 0xf04 0 44 0xf04 0 45 0xf04
					     0 46 0xf04 0 47 0xf04>;
			};
			qpend-1 {
				qrange = <8704 16>;
				interrupts = <0 48 0xf04 0 49 0xf04 0 50 0xf04
					      0 51 0xf04 0 52 0xf04 0 53 0xf04
					      0 54 0xf04 0 55 0xf04 0 56 0xf04
					      0 57 0xf04 0 58 0xf04 0 59 0xf04
					      0 60 0xf04 0 61 0xf04 0 62 0xf04
					      0 63 0xf04>;
				qalloc-by-id;
			};
			qpend-2 {
				qrange = <8720 16>;
				interrupts = <0 64 0xf04 0 65 0xf04 0 66 0xf04
					      0 59 0xf04 0 68 0xf04 0 69 0xf04
					      0 70 0xf04 0 71 0xf04 0 72 0xf04
					      0 73 0xf04 0 74 0xf04 0 75 0xf04
					      0 76 0xf04 0 77 0xf04 0 78 0xf04
					      0 79 0xf04>;
			};
		};
		general-purpose {
			gp-0 {
				qrange = <4000 64>;
			};
			netcp-tx {
				qrange = <640 9>;
				qalloc-by-id;
			};
			netcpx-tx {
				qrange = <8752 8>;
				qalloc-by-id;
			};
		};
		accumulator {
			acc-low-0 {
				qrange = <480 32>;
				accumulator = <0 47 16 2 50>;
				interrupts = <0 226 0xf01>;
				multi-queue;
				qalloc-by-id;
			};
		};
	};

	descriptor-regions {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;
		region-12 {
			id = <12>;
			region-spec = <8192 128>;	/* num_desc desc_size */
			link-index = <0x4000>;
		};
	};

	pdsps {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;
		pdsp0@0x2a10000 {
			reg = <0x2a10000 0x1000    /*iram */
			       0x2a0f000 0x100     /*reg*/
			       0x2a0c000 0x3c8	   /*intd */
			       0x2a20000 0x4000>;  /*cmd*/
			id = <0>;
		};
	};
}; /* qmss */

knav_dmas: knav_dmas@0 {
	compatible = "ti,keystone-navigator-dma";
	clocks = <&papllclk>;
	#address-cells = <1>;
	#size-cells = <1>;
	ranges;
	ti,navigator-cloud-address = <0x23a80000 0x23a90000
				   0x23aa0000 0x23ab0000>;

	dma_gbe: dma_gbe@0 {
		reg = <0x2004000 0x100>,
			  <0x2004400 0x120>,
			  <0x2004800 0x300>,
			  <0x2004c00 0x120>,
			  <0x2005000 0x400>;
		reg-names = "global", "txchan", "rxchan",
				"txsched", "rxflow";
		ti,enable-all;
	};
};

gbe_serdes: phy@232a000 {
	compatible		= "ti,keystone-serdes-gbe";
	reg			= <0x0232a000 0x2000>;
	status			= "ok";
	link-rate-kbps		= <1250000>;
	num-lanes		= <4>;
	#address-cells	= <1>;
	#size-cells	= <0>;

	serdes_lane0: lane@0 {
		#phy-cells	= <0>;
		reg		= <0>;
		status		= "ok";
		control-rate	= <2>;
		rx-start	= <7 5>;
		rx-force	= <1 1>;
		tx-coeff	= <0 0 0 12 4>;
	};
	serdes_lane1: lane@1 {
		#phy-cells	= <0>;
		reg		= <1>;
		status		= "ok";
		control-rate	= <2>;
		rx-start	= <7 5>;
		rx-force	= <1 1>;
		tx-coeff	= <0 0 0 12 4>;
	};
	serdes_lane2: lane@2 {
		#phy-cells	= <0>;
		reg		= <2>;
		status		= "ok";
		control-rate	= <2>;
		rx-start	= <7 5>;
		rx-force	= <1 1>;
		tx-coeff	= <0 0 0 12 4>;
	};
	serdes_lane3: lane@3 {
		#phy-cells	= <0>;
		reg		= <3>;
		status		= "disabled";
		control-rate	= <2>;
		rx-start	= <7 5>;
		rx-force	= <1 1>;
		tx-coeff	= <0 0 0 12 4>;
	};
};

netcp: netcp@2000000 {
	reg = <0x2620110 0x8>;
	reg-names = "efuse";
	compatible = "ti,netcp-1.0";
	#address-cells = <1>;
	#size-cells = <1>;

	/* NetCP address range */
	ranges  = <0 0x2000000 0x100000>;

	clocks = <&clkpa>, <&clkcpgmac>, <&chipclk12>;
	clock-names = "pa_clk", "ethss_clk", "cpts";
	dma-coherent;

	ti,navigator-dmas =
			<&dma_gbe 22>, /* rx flow for CPSW port 0 */
			<&dma_gbe 23>, /* rx flow for CPSW port 1 */
			<&dma_gbe 8>,  /* CPSW tx channel */
			<&dma_gbe 24>; /* rx flow for CPSW port 2 */
	ti,navigator-dma-names = "netrx0", "netrx1", "nettx", "netrx2";

	netcp-devices {
		ranges;
		#address-cells = <1>;
		#size-cells = <1>;
		gbe@90000 { /* ETHSS */
			#address-cells = <1>;
			#size-cells = <1>;
			label = "netcp-gbe";
			compatible = "ti,netcp-gbe";
			reg = <0x90000 0x300>, <0x90400 0x400>, <0x90800 0x700>;
			tx-queue = <648>;
			tx-channel = "nettx";

			interfaces {
				gbe0: interface-0 {
					phys = <&serdes_lane0>;
					slave-port = <0>;
					link-interface = <2>;
				};
				gbe1: interface-1 {
					phys = <&serdes_lane1>;
					slave-port = <1>;
					link-interface = <2>;
				};
				gbe2: interface-2 {
					phys = <&serdes_lane2>;
					slave-port = <2>;
					link-interface = <1>;
					phy-handle = <&ethphy0>;
				};
			};
		};
	};

	netcp-interfaces {
		interface-0 {
			rx-channel = "netrx0";
			rx-pool = <1024 12>;
			tx-pool = <1024 12>;
			rx-queue-depth = <128 128 0 0>;
			rx-buffer-size = <1518 4096 0 0>;
			rx-queue = <8704>;
			tx-completion-queue = <8707>;
			efuse-mac = <0>;
			netcp-gbe = <&gbe0>;
		};
		interface-1 {
			rx-channel = "netrx1";
			rx-pool = <1024 12>;
			tx-pool = <1024 12>;
			rx-queue-depth = <128 128 0 0>;
			rx-buffer-size = <1518 4096 0 0>;
			rx-queue = <8705>;
			tx-completion-queue = <8708>;
			efuse-mac = <1>;
			netcp-gbe = <&gbe1>;
		};
		interface-2 {
			rx-channel = "netrx2";
			rx-pool = <1024 12>;
			tx-pool = <1024 12>;
			rx-queue-depth = <128 128 0 0>;
			rx-buffer-size = <1518 4096 0 0>;
			rx-queue = <8706>;
			tx-completion-queue = <8709>;
			efuse-mac = <0>;
			local-mac-address = [02 18 31 7e 3e 6f];
			netcp-gbe = <&gbe2>;
		};
	};
};

sa_subsys: subsys@20c0000 {
	compatible = "simple-bus";
	#address-cells = <1>;
	#size-cells = <1>;
	ranges = <0 0x20c0000 0x40000>;

	sa_config: subsys@0 {
		compatible = "syscon";
		reg = <0x0 0x100>;
	};

	rng@24000 {
		compatible = "ti,keystone-rng";
		reg = <0x24000 0x1000>;
		ti,syscon-sa-cfg = <&sa_config>;
		clocks = <&clksa>;
		clock-names = "fck";
	};
};