44 lines
1.3 KiB
Plaintext
44 lines
1.3 KiB
Plaintext
Broadcom Bluetooth Chips
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---------------------
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This documents the binding structure and common properties for serial
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attached Broadcom devices.
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Serial attached Broadcom devices shall be a child node of the host UART
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device the slave device is attached to.
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Required properties:
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- compatible: should contain one of the following:
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* "brcm,bcm20702a1"
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* "brcm,bcm4330-bt"
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* "brcm,bcm43438-bt"
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* "brcm,bcm4345c5"
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Optional properties:
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- max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
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- shutdown-gpios: GPIO specifier, used to enable the BT module
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- device-wakeup-gpios: GPIO specifier, used to wakeup the controller
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- host-wakeup-gpios: GPIO specifier, used to wakeup the host processor
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- clocks: 1 or 2 clocks as defined in clock-names below, in that order
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- clock-names: names for clock inputs, matching the clocks given
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- "extclk": deprecated, replaced by "txco"
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- "txco": external reference clock (not a standalone crystal)
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- "lpo": external low power 32.768 kHz clock
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- vbat-supply: phandle to regulator supply for VBAT
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- vddio-supply: phandle to regulator supply for VDDIO
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Example:
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&uart2 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart2_pins>;
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bluetooth {
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compatible = "brcm,bcm43438-bt";
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max-speed = <921600>;
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};
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};
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