| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | }; |