broadcom-bluetooth.txt

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    1 Broadcom Bluetooth Chips
    2 ---------------------
    3 
    4 This documents the binding structure and common properties for serial
    5 attached Broadcom devices.
    6 
    7 Serial attached Broadcom devices shall be a child node of the host UART
    8 device the slave device is attached to.
    9 
   10 Required properties:
   11 
   12  - compatible: should contain one of the following:
   13    * "brcm,bcm20702a1"
   14    * "brcm,bcm4329-bt"
   15    * "brcm,bcm4330-bt"
   16    * "brcm,bcm43438-bt"
   17    * "brcm,bcm4345c5"
   18    * "brcm,bcm43540-bt"
   19    * "brcm,bcm4335a0"
   20 
   21 Optional properties:
   22 
   23  - max-speed: see Documentation/devicetree/bindings/serial/serial.yaml
   24  - shutdown-gpios: GPIO specifier, used to enable the BT module
   25  - device-wakeup-gpios: GPIO specifier, used to wakeup the controller
   26  - host-wakeup-gpios: GPIO specifier, used to wakeup the host processor.
   27                       deprecated, replaced by interrupts and
   28                       "host-wakeup" interrupt-names
   29  - clocks: 1 or 2 clocks as defined in clock-names below, in that order
   30  - clock-names: names for clock inputs, matching the clocks given
   31    - "extclk": deprecated, replaced by "txco"
   32    - "txco": external reference clock (not a standalone crystal)
   33    - "lpo": external low power 32.768 kHz clock
   34  - vbat-supply: phandle to regulator supply for VBAT
   35  - vddio-supply: phandle to regulator supply for VDDIO
   36  - brcm,bt-pcm-int-params: configure PCM parameters via a 5-byte array
   37     - sco-routing: 0 = PCM, 1 = Transport, 2 = Codec, 3 = I2S
   38     - pcm-interface-rate: 128KBps, 256KBps, 512KBps, 1024KBps, 2048KBps
   39     - pcm-frame-type: short, long
   40     - pcm-sync-mode: slave, master
   41     - pcm-clock-mode: slave, master
   42  - interrupts: must be one, used to wakeup the host processor
   43  - interrupt-names: must be "host-wakeup"
   44 
   45 Example:
   46 
   47 &uart2 {
   48        pinctrl-names = "default";
   49        pinctrl-0 = <&uart2_pins>;
   50 
   51        bluetooth {
   52                compatible = "brcm,bcm43438-bt";
   53                max-speed = <921600>;
   54                brcm,bt-pcm-int-params = [01 02 00 01 01];
   55        };
   56 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/net/broadcom-bluetooth.txt

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sys/contrib/device-tree/Bindings/net/broadcom-bluetooth.txt