160 lines
4.1 KiB
YAML
160 lines
4.1 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/net/broadcom-bluetooth.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Broadcom Bluetooth Chips
|
|
|
|
maintainers:
|
|
- Linus Walleij <linus.walleij@linaro.org>
|
|
|
|
description:
|
|
This binding describes Broadcom UART-attached bluetooth chips.
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- brcm,bcm20702a1
|
|
- brcm,bcm4329-bt
|
|
- brcm,bcm4330-bt
|
|
- brcm,bcm4334-bt
|
|
- brcm,bcm43430a0-bt
|
|
- brcm,bcm43430a1-bt
|
|
- brcm,bcm43438-bt
|
|
- brcm,bcm4345c5
|
|
- brcm,bcm43540-bt
|
|
- brcm,bcm4335a0
|
|
- brcm,bcm4349-bt
|
|
- cypress,cyw4373a0-bt
|
|
- infineon,cyw55572-bt
|
|
|
|
shutdown-gpios:
|
|
maxItems: 1
|
|
description: GPIO specifier for the line BT_REG_ON used to
|
|
power on the BT module
|
|
|
|
reset-gpios:
|
|
maxItems: 1
|
|
description: GPIO specifier for the line BT_RST_N used to
|
|
reset the BT module. This should be marked as
|
|
GPIO_ACTIVE_LOW.
|
|
|
|
device-wakeup-gpios:
|
|
maxItems: 1
|
|
description: GPIO specifier for the line BT_WAKE used to
|
|
wakeup the controller. This is using the BT_GPIO_0
|
|
pin on the chip when in use.
|
|
|
|
host-wakeup-gpios:
|
|
maxItems: 1
|
|
deprecated: true
|
|
description: GPIO specifier for the line HOST_WAKE used
|
|
to wakeup the host processor. This is using he BT_GPIO_1
|
|
pin on the chip when in use. This is deprecated and replaced
|
|
by interrupts and "host-wakeup" interrupt-names
|
|
|
|
clocks:
|
|
minItems: 1
|
|
maxItems: 2
|
|
description: 1 or 2 clocks as defined in clock-names below,
|
|
in that order
|
|
|
|
clock-names:
|
|
description: Names of the 1 to 2 supplied clocks
|
|
oneOf:
|
|
- const: extclk
|
|
deprecated: true
|
|
description: Deprecated in favor of txco
|
|
|
|
- const: txco
|
|
description: >
|
|
external reference clock (not a standalone crystal)
|
|
|
|
- const: lpo
|
|
description: >
|
|
external low power 32.768 kHz clock
|
|
|
|
- items:
|
|
- const: txco
|
|
- const: lpo
|
|
|
|
vbat-supply:
|
|
description: phandle to regulator supply for VBAT
|
|
|
|
vddio-supply:
|
|
description: phandle to regulator supply for VDDIO
|
|
|
|
brcm,bt-pcm-int-params:
|
|
$ref: /schemas/types.yaml#/definitions/uint8-array
|
|
minItems: 5
|
|
maxItems: 5
|
|
description: |-
|
|
configure PCM parameters via a 5-byte array:
|
|
sco-routing: 0 = PCM, 1 = Transport, 2 = Codec, 3 = I2S
|
|
pcm-interface-rate: 128KBps, 256KBps, 512KBps, 1024KBps, 2048KBps
|
|
pcm-frame-type: short, long
|
|
pcm-sync-mode: slave, master
|
|
pcm-clock-mode: slave, master
|
|
|
|
brcm,requires-autobaud-mode:
|
|
type: boolean
|
|
description:
|
|
Set this property if autobaud mode is required. Autobaud mode is required
|
|
if the device's initial baud rate in normal mode is not supported by the
|
|
host or if the device requires autobaud mode startup before loading FW.
|
|
|
|
interrupts:
|
|
items:
|
|
- description: Handle to the line HOST_WAKE used to wake
|
|
up the host processor. This uses the BT_GPIO_1 pin on
|
|
the chip when in use.
|
|
|
|
interrupt-names:
|
|
items:
|
|
- const: host-wakeup
|
|
|
|
max-speed: true
|
|
current-speed: true
|
|
|
|
required:
|
|
- compatible
|
|
|
|
dependencies:
|
|
brcm,requires-autobaud-mode: [ shutdown-gpios ]
|
|
|
|
if:
|
|
not:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- brcm,bcm20702a1
|
|
- brcm,bcm4329-bt
|
|
- brcm,bcm4330-bt
|
|
then:
|
|
properties:
|
|
reset-gpios: false
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/gpio/gpio.h>
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
|
|
|
uart {
|
|
uart-has-rtscts;
|
|
|
|
bluetooth {
|
|
compatible = "brcm,bcm4330-bt";
|
|
max-speed = <921600>;
|
|
brcm,bt-pcm-int-params = [01 02 00 01 01];
|
|
shutdown-gpios = <&gpio 30 GPIO_ACTIVE_HIGH>;
|
|
device-wakeup-gpios = <&gpio 7 GPIO_ACTIVE_HIGH>;
|
|
reset-gpios = <&gpio 9 GPIO_ACTIVE_LOW>;
|
|
interrupt-parent = <&gpio>;
|
|
interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
|
|
};
|
|
};
|