17820ee1cSLinus Walleij# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 27820ee1cSLinus Walleij%YAML 1.2 37820ee1cSLinus Walleij--- 47820ee1cSLinus Walleij$id: http://devicetree.org/schemas/net/broadcom-bluetooth.yaml# 57820ee1cSLinus Walleij$schema: http://devicetree.org/meta-schemas/core.yaml# 67820ee1cSLinus Walleij 77820ee1cSLinus Walleijtitle: Broadcom Bluetooth Chips 87820ee1cSLinus Walleij 97820ee1cSLinus Walleijmaintainers: 107820ee1cSLinus Walleij - Linus Walleij <linus.walleij@linaro.org> 117820ee1cSLinus Walleij 127820ee1cSLinus Walleijdescription: 137820ee1cSLinus Walleij This binding describes Broadcom UART-attached bluetooth chips. 147820ee1cSLinus Walleij 157820ee1cSLinus Walleijproperties: 167820ee1cSLinus Walleij compatible: 177820ee1cSLinus Walleij enum: 187820ee1cSLinus Walleij - brcm,bcm20702a1 197820ee1cSLinus Walleij - brcm,bcm4329-bt 207820ee1cSLinus Walleij - brcm,bcm4330-bt 2171793730SLinus Walleij - brcm,bcm4334-bt 227820ee1cSLinus Walleij - brcm,bcm43438-bt 237820ee1cSLinus Walleij - brcm,bcm4345c5 247820ee1cSLinus Walleij - brcm,bcm43540-bt 257820ee1cSLinus Walleij - brcm,bcm4335a0 2688b65887SAhmad Fatoum - brcm,bcm4349-bt 27*cba6164fSHakan Jansson - infineon,cyw55572-bt 287820ee1cSLinus Walleij 297820ee1cSLinus Walleij shutdown-gpios: 307820ee1cSLinus Walleij maxItems: 1 317820ee1cSLinus Walleij description: GPIO specifier for the line BT_REG_ON used to 327820ee1cSLinus Walleij power on the BT module 337820ee1cSLinus Walleij 347820ee1cSLinus Walleij reset-gpios: 357820ee1cSLinus Walleij maxItems: 1 367820ee1cSLinus Walleij description: GPIO specifier for the line BT_RST_N used to 377820ee1cSLinus Walleij reset the BT module. This should be marked as 387820ee1cSLinus Walleij GPIO_ACTIVE_LOW. 397820ee1cSLinus Walleij 407820ee1cSLinus Walleij device-wakeup-gpios: 417820ee1cSLinus Walleij maxItems: 1 427820ee1cSLinus Walleij description: GPIO specifier for the line BT_WAKE used to 437820ee1cSLinus Walleij wakeup the controller. This is using the BT_GPIO_0 447820ee1cSLinus Walleij pin on the chip when in use. 457820ee1cSLinus Walleij 467820ee1cSLinus Walleij host-wakeup-gpios: 477820ee1cSLinus Walleij maxItems: 1 487820ee1cSLinus Walleij deprecated: true 497820ee1cSLinus Walleij description: GPIO specifier for the line HOST_WAKE used 507820ee1cSLinus Walleij to wakeup the host processor. This is using he BT_GPIO_1 517820ee1cSLinus Walleij pin on the chip when in use. This is deprecated and replaced 527820ee1cSLinus Walleij by interrupts and "host-wakeup" interrupt-names 537820ee1cSLinus Walleij 547820ee1cSLinus Walleij clocks: 5588ffadceSMaxime Ripard minItems: 1 567820ee1cSLinus Walleij maxItems: 2 577820ee1cSLinus Walleij description: 1 or 2 clocks as defined in clock-names below, 587820ee1cSLinus Walleij in that order 597820ee1cSLinus Walleij 607820ee1cSLinus Walleij clock-names: 617820ee1cSLinus Walleij description: Names of the 1 to 2 supplied clocks 6288ffadceSMaxime Ripard oneOf: 6388ffadceSMaxime Ripard - const: extclk 6488ffadceSMaxime Ripard deprecated: true 6588ffadceSMaxime Ripard description: Deprecated in favor of txco 6688ffadceSMaxime Ripard 6788ffadceSMaxime Ripard - const: txco 6888ffadceSMaxime Ripard description: > 6988ffadceSMaxime Ripard external reference clock (not a standalone crystal) 7088ffadceSMaxime Ripard 7188ffadceSMaxime Ripard - const: lpo 7288ffadceSMaxime Ripard description: > 7388ffadceSMaxime Ripard external low power 32.768 kHz clock 7488ffadceSMaxime Ripard 7588ffadceSMaxime Ripard - items: 767820ee1cSLinus Walleij - const: txco 777820ee1cSLinus Walleij - const: lpo 787820ee1cSLinus Walleij 797820ee1cSLinus Walleij vbat-supply: 807820ee1cSLinus Walleij description: phandle to regulator supply for VBAT 817820ee1cSLinus Walleij 827820ee1cSLinus Walleij vddio-supply: 837820ee1cSLinus Walleij description: phandle to regulator supply for VDDIO 847820ee1cSLinus Walleij 857820ee1cSLinus Walleij brcm,bt-pcm-int-params: 867820ee1cSLinus Walleij $ref: /schemas/types.yaml#/definitions/uint8-array 877820ee1cSLinus Walleij minItems: 5 887820ee1cSLinus Walleij maxItems: 5 897820ee1cSLinus Walleij description: |- 907820ee1cSLinus Walleij configure PCM parameters via a 5-byte array: 917820ee1cSLinus Walleij sco-routing: 0 = PCM, 1 = Transport, 2 = Codec, 3 = I2S 927820ee1cSLinus Walleij pcm-interface-rate: 128KBps, 256KBps, 512KBps, 1024KBps, 2048KBps 937820ee1cSLinus Walleij pcm-frame-type: short, long 947820ee1cSLinus Walleij pcm-sync-mode: slave, master 957820ee1cSLinus Walleij pcm-clock-mode: slave, master 967820ee1cSLinus Walleij 970b4de252SHakan Jansson brcm,requires-autobaud-mode: 980b4de252SHakan Jansson type: boolean 990b4de252SHakan Jansson description: 1000b4de252SHakan Jansson Set this property if autobaud mode is required. Autobaud mode is required 1010b4de252SHakan Jansson if the device's initial baud rate in normal mode is not supported by the 1020b4de252SHakan Jansson host or if the device requires autobaud mode startup before loading FW. 1030b4de252SHakan Jansson 1047820ee1cSLinus Walleij interrupts: 1057820ee1cSLinus Walleij items: 1067820ee1cSLinus Walleij - description: Handle to the line HOST_WAKE used to wake 1077820ee1cSLinus Walleij up the host processor. This uses the BT_GPIO_1 pin on 1087820ee1cSLinus Walleij the chip when in use. 1097820ee1cSLinus Walleij 1107820ee1cSLinus Walleij interrupt-names: 1117820ee1cSLinus Walleij items: 1127820ee1cSLinus Walleij - const: host-wakeup 1137820ee1cSLinus Walleij 1147820ee1cSLinus Walleij max-speed: true 1157820ee1cSLinus Walleij current-speed: true 1167820ee1cSLinus Walleij 1177820ee1cSLinus Walleijrequired: 1187820ee1cSLinus Walleij - compatible 1197820ee1cSLinus Walleij 1207820ee1cSLinus WalleijadditionalProperties: false 1217820ee1cSLinus Walleij 1227820ee1cSLinus Walleijexamples: 1237820ee1cSLinus Walleij - | 1247820ee1cSLinus Walleij #include <dt-bindings/gpio/gpio.h> 1257820ee1cSLinus Walleij #include <dt-bindings/interrupt-controller/irq.h> 1267820ee1cSLinus Walleij 1277820ee1cSLinus Walleij uart { 1287820ee1cSLinus Walleij uart-has-rtscts; 1297820ee1cSLinus Walleij 1307820ee1cSLinus Walleij bluetooth { 1317820ee1cSLinus Walleij compatible = "brcm,bcm4330-bt"; 1327820ee1cSLinus Walleij max-speed = <921600>; 1337820ee1cSLinus Walleij brcm,bt-pcm-int-params = [01 02 00 01 01]; 1347820ee1cSLinus Walleij shutdown-gpios = <&gpio 30 GPIO_ACTIVE_HIGH>; 1357820ee1cSLinus Walleij device-wakeup-gpios = <&gpio 7 GPIO_ACTIVE_HIGH>; 1367820ee1cSLinus Walleij reset-gpios = <&gpio 9 GPIO_ACTIVE_LOW>; 1377820ee1cSLinus Walleij interrupt-parent = <&gpio>; 1387820ee1cSLinus Walleij interrupts = <8 IRQ_TYPE_EDGE_FALLING>; 1397820ee1cSLinus Walleij }; 1407820ee1cSLinus Walleij }; 141