device-tree-bindings/net/micrel-ksz90x1.txt

5 micrel-specific properties to an Ethernet OF device node.
7 Note that these settings are applied after any phy-specific fixup from
19     - rxc-skew-ps : Skew control of RXC pad
20     - rxdv-skew-ps : Skew control of RX CTL pad
21     - txc-skew-ps : Skew control of TXC pad
22     - txen-skew-ps : Skew control of TX CTL pad
23     - rxd0-skew-ps : Skew control of RX data 0 pad
24     - rxd1-skew-ps : Skew control of RX data 1 pad
25     - rxd2-skew-ps : Skew control of RX data 2 pad
26     - rxd3-skew-ps : Skew control of RX data 3 pad
27     - txd0-skew-ps : Skew control of TX data 0 pad
28     - txd1-skew-ps : Skew control of TX data 1 pad
29     - txd2-skew-ps : Skew control of TX data 2 pad
30     - txd3-skew-ps : Skew control of TX data 3 pad
35   value is 0, and the maximum is property-dependent. The increment
44   The following 5-bit values table apply to rxc-skew-ps and txc-skew-ps.
47   ------------------------------------------------------
48   0_0000		-900ps		0
49   0_0001		-840ps		60
50   0_0010		-780ps		120
51   0_0011		-720ps		180
52   0_0100		-660ps		240
53   0_0101		-600ps		300
54   0_0110		-540ps		360
55   0_0111		-480ps		420
56   0_1000		-420ps		480
57   0_1001		-360ps		540
58   0_1010		-300ps		600
59   0_1011		-240ps		660
60   0_1100		-180ps		720
61   0_1101		-120ps		780
62   0_1110		-60ps		840
81   The following 4-bit values table apply to the txdX-skew-ps, rxdX-skew-ps
82   data pads, and the rxdv-skew-ps, txen-skew-ps control pads.
85   ------------------------------------------------------
86   0000			-420ps		0
87   0001			-360ps		60
88   0010			-300ps		120
89   0011			-240ps		180
90   0100			-180ps		240
91   0101			-120ps		300
92   0110			-60ps		360
107       - rxc-skew-ps : Skew control of RX clock pad
108       - txc-skew-ps : Skew control of TX clock pad
112       - rxdv-skew-ps : Skew control of RX CTL pad
113       - txen-skew-ps : Skew control of TX CTL pad
114       - rxd0-skew-ps : Skew control of RX data 0 pad
115       - rxd1-skew-ps : Skew control of RX data 1 pad
116       - rxd2-skew-ps : Skew control of RX data 2 pad
117       - rxd3-skew-ps : Skew control of RX data 3 pad
118       - txd0-skew-ps : Skew control of TX data 0 pad
119       - txd1-skew-ps : Skew control of TX data 1 pad
120       - txd2-skew-ps : Skew control of TX data 2 pad
121       - txd3-skew-ps : Skew control of TX data 3 pad
127 		rxc-skew-ps = <1800>;
128 		rxdv-skew-ps = <0>;
129 		txc-skew-ps = <1800>;
130 		txen-skew-ps = <0>;
134 	/* Attach to an explicitly-specified PHY */
136 		phy0: ethernet-phy@0 {
137 			rxc-skew-ps = <1800>;
138 			rxdv-skew-ps = <0>;
139 			txc-skew-ps = <1800>;
140 			txen-skew-ps = <0>;
147 		phy-mode = "rgmii-id";
152   Micrel ksz9021rl/rn Data Sheet, Revision 1.2. Dated 2/13/2014.
153   http://www.micrel.com/_PDF/Ethernet/datasheets/ksz9021rl-rn_ds.pdf
155   Micrel ksz9031rnx Data Sheet, Revision 2.1. Dated 11/20/2014.
160   Note that a previous version of the Micrel ksz9021rl/rn Data Sheet
161   was missing extended register 106 (transmit data pad skews), and