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Diffstat (limited to 'drivers/staging/wfx/Documentation/devicetree/bindings/net/wireless/siliabs,wfx.txt')
-rw-r--r-- | drivers/staging/wfx/Documentation/devicetree/bindings/net/wireless/siliabs,wfx.txt | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/drivers/staging/wfx/Documentation/devicetree/bindings/net/wireless/siliabs,wfx.txt b/drivers/staging/wfx/Documentation/devicetree/bindings/net/wireless/siliabs,wfx.txt deleted file mode 100644 index 17db67559f5e..000000000000 --- a/drivers/staging/wfx/Documentation/devicetree/bindings/net/wireless/siliabs,wfx.txt +++ /dev/null @@ -1,98 +0,0 @@ -The WFxxx chip series can be connected via SPI or via SDIO. - -SPI ---- - -You have to declare the WFxxx chip in your device tree. - -Required properties: - - compatible: Should be "silabs,wf200" - - reg: Chip select address of device - - spi-max-frequency: Maximum SPI clocking speed of device in Hz - - interrupts-extended: Should contain interrupt line (interrupt-parent + - interrupt can also been used). Trigger should be `IRQ_TYPE_EDGE_RISING`. - -Optional properties: - - reset-gpios: phandle of gpio that will be used to reset chip during probe. - Without this property, you may encounter issues with warm boot. - (Legacy: when compatible == "silabs,wfx-spi", the gpio is inverted.) - -Please consult Documentation/devicetree/bindings/spi/spi-bus.txt for optional -SPI connection related properties, - -Example: - -&spi1 { - wfx { - compatible = "silabs,wf200"; - pinctrl-names = "default"; - pinctrl-0 = <&wfx_irq &wfx_gpios>; - interrupts-extended = <&gpio 16 IRQ_TYPE_EDGE_RISING>; - wakeup-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>; - reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>; - reg = <0>; - spi-max-frequency = <42000000>; - }; -}; - - -SDIO ----- - -The driver is able to detect a WFxxx chip on SDIO bus by matching its Vendor ID -and Product ID. However, driver will only provide limited features in this -case. Thus declaring WFxxx chip in device tree is strongly recommended (and may -become mandatory in the future). - -Required properties: - - compatible: Should be "silabs,wf200" - - reg: Should be 1 - -In addition, it is recommended to declare a mmc-pwrseq on SDIO host above WFx. -Without it, you may encounter issues with warm boot. mmc-pwrseq should be -compatible with mmc-pwrseq-simple. Please consult -Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt for more -information. - -Example: - -/ { - wfx_pwrseq: wfx_pwrseq { - compatible = "mmc-pwrseq-simple"; - pinctrl-names = "default"; - pinctrl-0 = <&wfx_reset>; - reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>; - }; -}; - -&mmc1 { - mmc-pwrseq = <&wfx_pwrseq>; - #address-size = <1>; - #size = <0>; - - mmc@1 { - compatible = "silabs,wf200"; - reg = <1>; - pinctrl-names = "default"; - pinctrl-0 = <&wfx_wakeup>; - wakeup-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>; - }; -}; - -Note that #address-size and #size shoud already be defined in node mmc1, but it -is rarely the case. - -Common properties ------------------ - -Some properties are recognized either by SPI and SDIO versions: - - wakeup-gpios: phandle of gpio that will be used to wake-up chip. Without - this property, driver will disable most of power saving features. - - config-file: Use an alternative file as PDS. Default is `wf200.pds`. Only - necessary for development/debug purpose. - - slk_key: String representing hexadecimal value of secure link key to use. - Must contains 64 hexadecimal digits. Not supported in current version. - -WFx driver also supports `mac-address` and `local-mac-address` as described in -Documentation/devicetree/bindings/net/ethernet.txt - |