1*bb171271SGeert Uytterhoeven# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*bb171271SGeert Uytterhoeven%YAML 1.2 3*bb171271SGeert Uytterhoeven--- 4*bb171271SGeert Uytterhoeven$id: http://devicetree.org/schemas/net/ti,bluetooth.yaml# 5*bb171271SGeert Uytterhoeven$schema: http://devicetree.org/meta-schemas/core.yaml# 6*bb171271SGeert Uytterhoeven 7*bb171271SGeert Uytterhoeventitle: Texas Instruments Bluetooth Chips 8*bb171271SGeert Uytterhoeven 9*bb171271SGeert Uytterhoevenmaintainers: 10*bb171271SGeert Uytterhoeven - David Lechner <david@lechnology.com> 11*bb171271SGeert Uytterhoeven 12*bb171271SGeert Uytterhoevendescription: | 13*bb171271SGeert Uytterhoeven This documents the binding structure and common properties for serial 14*bb171271SGeert Uytterhoeven attached TI Bluetooth devices. The following chips are included in this 15*bb171271SGeert Uytterhoeven binding: 16*bb171271SGeert Uytterhoeven 17*bb171271SGeert Uytterhoeven * TI CC256x Bluetooth devices 18*bb171271SGeert Uytterhoeven * TI WiLink 7/8 (wl12xx/wl18xx) Shared Transport BT/FM/GPS devices 19*bb171271SGeert Uytterhoeven 20*bb171271SGeert Uytterhoeven TI WiLink devices have a UART interface for providing Bluetooth, FM radio, 21*bb171271SGeert Uytterhoeven and GPS over what's called "shared transport". The shared transport is 22*bb171271SGeert Uytterhoeven standard BT HCI protocol with additional channels for the other functions. 23*bb171271SGeert Uytterhoeven 24*bb171271SGeert Uytterhoeven TI WiLink devices also have a separate WiFi interface as described in 25*bb171271SGeert Uytterhoeven wireless/ti,wlcore.yaml. 26*bb171271SGeert Uytterhoeven 27*bb171271SGeert Uytterhoeven This bindings follows the UART slave device binding in ../serial/serial.yaml. 28*bb171271SGeert Uytterhoeven 29*bb171271SGeert Uytterhoevenproperties: 30*bb171271SGeert Uytterhoeven compatible: 31*bb171271SGeert Uytterhoeven enum: 32*bb171271SGeert Uytterhoeven - ti,cc2560 33*bb171271SGeert Uytterhoeven - ti,wl1271-st 34*bb171271SGeert Uytterhoeven - ti,wl1273-st 35*bb171271SGeert Uytterhoeven - ti,wl1281-st 36*bb171271SGeert Uytterhoeven - ti,wl1283-st 37*bb171271SGeert Uytterhoeven - ti,wl1285-st 38*bb171271SGeert Uytterhoeven - ti,wl1801-st 39*bb171271SGeert Uytterhoeven - ti,wl1805-st 40*bb171271SGeert Uytterhoeven - ti,wl1807-st 41*bb171271SGeert Uytterhoeven - ti,wl1831-st 42*bb171271SGeert Uytterhoeven - ti,wl1835-st 43*bb171271SGeert Uytterhoeven - ti,wl1837-st 44*bb171271SGeert Uytterhoeven 45*bb171271SGeert Uytterhoeven enable-gpios: 46*bb171271SGeert Uytterhoeven maxItems: 1 47*bb171271SGeert Uytterhoeven 48*bb171271SGeert Uytterhoeven vio-supply: 49*bb171271SGeert Uytterhoeven description: Vio input supply (1.8V) 50*bb171271SGeert Uytterhoeven 51*bb171271SGeert Uytterhoeven vbat-supply: 52*bb171271SGeert Uytterhoeven description: Vbat input supply (2.9-4.8V) 53*bb171271SGeert Uytterhoeven 54*bb171271SGeert Uytterhoeven clocks: 55*bb171271SGeert Uytterhoeven maxItems: 1 56*bb171271SGeert Uytterhoeven 57*bb171271SGeert Uytterhoeven clock-names: 58*bb171271SGeert Uytterhoeven items: 59*bb171271SGeert Uytterhoeven - const: ext_clock 60*bb171271SGeert Uytterhoeven 61*bb171271SGeert Uytterhoeven max-speed: true 62*bb171271SGeert Uytterhoeven 63*bb171271SGeert Uytterhoeven nvmem-cells: 64*bb171271SGeert Uytterhoeven maxItems: 1 65*bb171271SGeert Uytterhoeven description: 66*bb171271SGeert Uytterhoeven Nvmem data cell that contains a 6 byte BD address with the most 67*bb171271SGeert Uytterhoeven significant byte first (big-endian). 68*bb171271SGeert Uytterhoeven 69*bb171271SGeert Uytterhoeven nvmem-cell-names: 70*bb171271SGeert Uytterhoeven items: 71*bb171271SGeert Uytterhoeven - const: bd-address 72*bb171271SGeert Uytterhoeven 73*bb171271SGeert Uytterhoevenrequired: 74*bb171271SGeert Uytterhoeven - compatible 75*bb171271SGeert Uytterhoeven 76*bb171271SGeert UytterhoevenadditionalProperties: false 77*bb171271SGeert Uytterhoeven 78*bb171271SGeert Uytterhoevenexamples: 79*bb171271SGeert Uytterhoeven - | 80*bb171271SGeert Uytterhoeven #include <dt-bindings/gpio/gpio.h> 81*bb171271SGeert Uytterhoeven 82*bb171271SGeert Uytterhoeven serial { 83*bb171271SGeert Uytterhoeven bluetooth { 84*bb171271SGeert Uytterhoeven compatible = "ti,wl1835-st"; 85*bb171271SGeert Uytterhoeven enable-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>; 86*bb171271SGeert Uytterhoeven clocks = <&clk32k_wl18xx>; 87*bb171271SGeert Uytterhoeven clock-names = "ext_clock"; 88*bb171271SGeert Uytterhoeven nvmem-cells = <&bd_address>; 89*bb171271SGeert Uytterhoeven nvmem-cell-names = "bd-address"; 90*bb171271SGeert Uytterhoeven }; 91*bb171271SGeert Uytterhoeven }; 92