1 Micrel PHY properties. 1 Micrel PHY properties.
2 2
3 These properties cover the base properties Mic 3 These properties cover the base properties Micrel PHYs.
4 4
5 Optional properties: 5 Optional properties:
6 6
7 - micrel,led-mode : LED mode value to set for 7 - micrel,led-mode : LED mode value to set for PHYs with configurable LEDs.
8 8
9 Configure the LED mode with single val 9 Configure the LED mode with single value. The list of PHYs and the
10 bits that are currently supported: 10 bits that are currently supported:
11 11
12 KSZ8001: register 0x1e, bits 15..14 12 KSZ8001: register 0x1e, bits 15..14
13 KSZ8041: register 0x1e, bits 15..14 13 KSZ8041: register 0x1e, bits 15..14
14 KSZ8021: register 0x1f, bits 5..4 14 KSZ8021: register 0x1f, bits 5..4
15 KSZ8031: register 0x1f, bits 5..4 15 KSZ8031: register 0x1f, bits 5..4
16 KSZ8051: register 0x1f, bits 5..4 16 KSZ8051: register 0x1f, bits 5..4
17 KSZ8081: register 0x1f, bits 5..4 17 KSZ8081: register 0x1f, bits 5..4
18 KSZ8091: register 0x1f, bits 5..4 18 KSZ8091: register 0x1f, bits 5..4
19 LAN8814: register EP5.0, bit 6 19 LAN8814: register EP5.0, bit 6
20 20
21 See the respective PHY datasheet for t 21 See the respective PHY datasheet for the mode values.
22 22
23 - micrel,rmii-reference-clock-select-25-mhz: 23 - micrel,rmii-reference-clock-select-25-mhz: RMII Reference Clock Select
24 24 bit selects 25 MHz mode
25 25
26 Setting the RMII Reference Clock Selec 26 Setting the RMII Reference Clock Select bit enables 25 MHz rather
27 than 50 MHz clock mode. 27 than 50 MHz clock mode.
28 28
29 Note that this option in only needed f 29 Note that this option in only needed for certain PHY revisions with a
30 non-standard, inverted function of thi 30 non-standard, inverted function of this configuration bit.
31 Specifically, a clock reference ("rmii 31 Specifically, a clock reference ("rmii-ref" below) is always needed to
32 actually select a mode. 32 actually select a mode.
33 33
34 - clocks, clock-names: contains clocks accord 34 - clocks, clock-names: contains clocks according to the common clock bindings.
35 35
36 supported clocks: 36 supported clocks:
37 - KSZ8021, KSZ8031, KSZ8081, KSZ8091: 37 - KSZ8021, KSZ8031, KSZ8081, KSZ8091: "rmii-ref": The RMII reference
38 input clock. Used to determine the X 38 input clock. Used to determine the XI input clock.
39 39
40 - micrel,fiber-mode: If present the PHY is co 40 - micrel,fiber-mode: If present the PHY is configured to operate in fiber mode
41 41
42 Some PHYs, such as the KSZ8041FTL vari 42 Some PHYs, such as the KSZ8041FTL variant, support fiber mode, enabled
43 by the FXEN boot strapping pin. It can 43 by the FXEN boot strapping pin. It can't be determined from the PHY
44 registers whether the PHY is in fiber 44 registers whether the PHY is in fiber mode, so this boolean device tree
45 property can be used to describe it. 45 property can be used to describe it.
46 46
47 In fiber mode, auto-negotiation is dis 47 In fiber mode, auto-negotiation is disabled and the PHY can only work in
48 100base-fx (full and half duplex) mode 48 100base-fx (full and half duplex) modes.
49 49
50 - coma-mode-gpios: If present the given gpio 50 - coma-mode-gpios: If present the given gpio will be deasserted when the
51 PHY is probed. 51 PHY is probed.
52 52
53 Some PHYs have a COMA mode input pin w 53 Some PHYs have a COMA mode input pin which puts the PHY into
54 isolate and power-down mode. On some b 54 isolate and power-down mode. On some boards this input is connected
55 to a GPIO of the SoC. 55 to a GPIO of the SoC.
56 56
57 Supported on the LAN8814. 57 Supported on the LAN8814.
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