* Texas Instruments wl1251 wireless lan controller
|
|
The wl1251 chip can be connected via SPI or via SDIO. This
|
document describes the binding for the SPI connected chip.
|
|
Required properties:
|
- compatible : Should be "ti,wl1251"
|
- reg : Chip select address of device
|
- spi-max-frequency : Maximum SPI clocking speed of device in Hz
|
- interrupts : Should contain interrupt line
|
- vio-supply : phandle to regulator providing VIO
|
|
Optional properties:
|
- ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which
|
provides configuration data (calibration, MAC, ...)
|
- ti,power-gpio : GPIO connected to chip's PMEN pin if operated in
|
SPI mode
|
- Please consult Documentation/devicetree/bindings/spi/spi-bus.txt
|
for optional SPI connection related properties,
|
|
Examples:
|
|
&spi1 {
|
wl1251@0 {
|
compatible = "ti,wl1251";
|
|
reg = <0>;
|
spi-max-frequency = <48000000>;
|
spi-cpol;
|
spi-cpha;
|
|
interrupt-parent = <&gpio2>;
|
interrupts = <10 IRQ_TYPE_NONE>; /* gpio line 42 */
|
|
vio-supply = <&vio>;
|
ti,power-gpio = <&gpio3 23 GPIO_ACTIVE_HIGH>; /* 87 */
|
};
|
};
|
|
&mmc3 {
|
vmmc-supply = <&wlan_en>;
|
|
bus-width = <4>;
|
non-removable;
|
ti,non-removable;
|
cap-power-off-card;
|
|
pinctrl-names = "default";
|
pinctrl-0 = <&mmc3_pins>;
|
|
#address-cells = <1>;
|
#size-cells = <0>;
|
|
wlan: wifi@1 {
|
compatible = "ti,wl1251";
|
|
reg = <1>;
|
|
interrupt-parent = <&gpio1>;
|
interrupts = <21 IRQ_TYPE_LEVEL_HIGH>; /* GPIO_21 */
|
|
ti,wl1251-has-eeprom;
|
};
|
};
|
