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