1 * Texas Instruments wl1251 wireless lan controller
2
3 The wl1251 chip can be connected via SPI or via SDIO. This
4 document describes the binding for the SPI connected chip.
5
6 Required properties:
7 - compatible : Should be "ti,wl1251"
8 - reg : Chip select address of device
9 - spi-max-frequency : Maximum SPI clocking speed of device in Hz
10 - interrupts : Should contain interrupt line
11 - vio-supply : phandle to regulator providing VIO
12
13 Optional properties:
14 - ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which
15 provides configuration data (calibration, MAC, ...)
16 - ti,power-gpio : GPIO connected to chip's PMEN pin if operated in
17 SPI mode
18 - Please consult Documentation/devicetree/bindings/spi/spi-bus.txt
19 for optional SPI connection related properties,
20
21 Examples:
22
23 &spi1 {
24 wl1251@0 {
25 compatible = "ti,wl1251";
26
27 reg = <0>;
28 spi-max-frequency = <48000000>;
29 spi-cpol;
30 spi-cpha;
31
32 interrupt-parent = <&gpio2>;
33 interrupts = <10 IRQ_TYPE_NONE>; /* gpio line 42 */
34
35 vio-supply = <&vio>;
36 ti,power-gpio = <&gpio3 23 GPIO_ACTIVE_HIGH>; /* 87 */
37 };
38 };
39
40 &mmc3 {
41 vmmc-supply = <&wlan_en>;
42
43 bus-width = <4>;
44 non-removable;
45 ti,non-removable;
46 cap-power-off-card;
47
48 pinctrl-names = "default";
49 pinctrl-0 = <&mmc3_pins>;
50
51 #address-cells = <1>;
52 #size-cells = <0>;
53
54 wlan: wifi@1 {
55 compatible = "ti,wl1251";
56
57 reg = <1>;
58
59 interrupt-parent = <&gpio1>;
60 interrupts = <21 IRQ_TYPE_LEVEL_HIGH>; /* GPIO_21 */
61
62 ti,wl1251-has-eeprom;
63 };
64 };
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