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60 lines
1.9 KiB
60 lines
1.9 KiB
Texas Instruments Bluetooth Chips |
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This documents the binding structure and common properties for serial |
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attached TI Bluetooth devices. The following chips are included in this |
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binding: |
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* TI CC256x Bluetooth devices |
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* TI WiLink 7/8 (wl12xx/wl18xx) Shared Transport BT/FM/GPS devices |
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TI WiLink devices have a UART interface for providing Bluetooth, FM radio, |
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and GPS over what's called "shared transport". The shared transport is |
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standard BT HCI protocol with additional channels for the other functions. |
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TI WiLink devices also have a separate WiFi interface as described in |
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wireless/ti,wlcore.txt. |
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This bindings follows the UART slave device binding in ../serial/serial.yaml. |
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Required properties: |
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- compatible: should be one of the following: |
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"ti,cc2560" |
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"ti,wl1271-st" |
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"ti,wl1273-st" |
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"ti,wl1281-st" |
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"ti,wl1283-st" |
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"ti,wl1285-st" |
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"ti,wl1801-st" |
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"ti,wl1805-st" |
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"ti,wl1807-st" |
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"ti,wl1831-st" |
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"ti,wl1835-st" |
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"ti,wl1837-st" |
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Optional properties: |
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- enable-gpios : GPIO signal controlling enabling of BT. Active high. |
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- vio-supply : Vio input supply (1.8V) |
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- vbat-supply : Vbat input supply (2.9-4.8V) |
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- clocks : Must contain an entry, for each entry in clock-names. |
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See ../clocks/clock-bindings.txt for details. |
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- clock-names : Must include the following entry: |
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"ext_clock" (External clock provided to the TI combo chip). |
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- nvmem-cells: phandle to nvmem data cell that contains a 6 byte BD address |
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with the most significant byte first (big-endian). |
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- nvmem-cell-names: "bd-address" (required when nvmem-cells is specified) |
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Example: |
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&serial0 { |
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compatible = "ns16550a"; |
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... |
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bluetooth { |
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compatible = "ti,wl1835-st"; |
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enable-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>; |
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clocks = <&clk32k_wl18xx>; |
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clock-names = "ext_clock"; |
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nvmem-cells = <&bd_address>; |
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nvmem-cell-names = "bd-address"; |
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}; |
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};
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