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pi-puck.dts
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pi-puck.dts
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/dts-v1/;
/plugin/;
/ {
compatible = "brcm,bcm2708";
/* LEDs (on Raspberry Pi pins) */
fragment@0 {
target-path = "/soc";
__overlay__ {
pipuck_leds {
compatible = "gpio-leds";
pipuck_bat_low {
label = "pipuck_bat_low";
gpios = <&gpio 7 1>;
linux,default-trigger = "none";
default-state = "off";
};
pipuck_sd {
label = "pipuck_sd";
gpios = <&gpio 26 1>;
linux,default-trigger = "mmc0";
};
pipuck_wifi {
label = "pipuck_wifi";
gpios = <&gpio 25 1>;
linux,default-trigger = "netdev";
};
pipuck_boot {
label = "pipuck_boot";
gpios = <&gpio 4 1>;
linux,default-trigger = "heartbeat";
};
};
};
};
/* Shutdown button key */
fragment@1 {
target-path = "/soc";
__overlay__ {
pipuck_shutdown_key {
compatible = "gpio-keys";
pipuck_shutdown: pipuck_shutdown {
label = "shutdown";
linux,code = <116>; // KEY_POWER
gpios = <&gpio 6 1>;
debounce-interval = <1000>;
};
};
};
};
/* Disable Bluetooth to free up UART */
fragment@2 {
target = <&uart1>;
__dormant__ {
status = "disabled";
};
};
fragment@3 {
target = <&uart0>;
__dormant__ {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins>;
status = "okay";
};
};
fragment@4 {
target = <&uart0_pins>;
__dormant__ {
brcm,pins;
brcm,function;
brcm,pull;
};
};
fragment@5 {
target-path = "/aliases";
__dormant__ {
serial0 = "/soc/serial@7e201000";
serial1 = "/soc/serial@7e215040";
};
};
/* I2C devices */
fragment@6 {
target = <&i2c_arm>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
i2c_pipuck: i2c-switch@70 {
compatible = "nxp,pca9548";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x70>;
i2c_pipuck_0: i2c@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
/* Pi-puck board devices */
/* FT903 I2C slave */
/* ADC */
pipuck_adc: ads1015@48 {
compatible = "ti,ads1015";
reg = <0x48>;
#address-cells = <1>;
#size-cells = <0>;
pipuck_ain0: channel@4 {
reg = <4>;
ti,gain = <1>;
ti,datarate = <0>;
};
pipuck_ain1: channel@5 {
reg = <5>;
ti,gain = <1>;
ti,datarate = <0>;
};
};
};
i2c_pipuck_1: i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
/* e-puck devices */
};
i2c_pipuck_2: i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
/* Sensor Board 1 */
};
i2c_pipuck_3: i2c@3 {
#address-cells = <1>;
#size-cells = <0>;
reg = <3>;
/* Sensor Board 2 */
};
i2c_pipuck_4: i2c@4 {
#address-cells = <1>;
#size-cells = <0>;
reg = <4>;
/* Sensor Board 3 */
};
i2c_pipuck_5: i2c@5 {
#address-cells = <1>;
#size-cells = <0>;
reg = <5>;
/* Sensor Board 4 */
};
i2c_pipuck_6: i2c@6 {
#address-cells = <1>;
#size-cells = <0>;
reg = <6>;
/* e-puck */
/* Sensor Board 5 */
};
i2c_pipuck_7: i2c@7 {
#address-cells = <1>;
#size-cells = <0>;
reg = <7>;
/* Sensor Board 6 */
};
};
};
};
/* Software I2C */
fragment@7 {
target = <&i2c_arm>;
__dormant__ {
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
};
};
fragment@8 {
target-path = "/";
__dormant__ {
#address-cells = <1>;
#size-cells = <1>;
i2c_gpio: soft_i2c@1 {
compatible = "i2c-gpio";
sda-gpios = <&gpio 2 0>;
scl-gpios = <&gpio 3 0>;
i2c-gpio,delay-us = <2>; /* ~100 kHz */
#address-cells = <1>;
#size-cells = <0>;
reg = <0x1 0x0>;
soft_i2c_pipuck: i2c-switch@70 {
compatible = "nxp,pca9548";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x70>;
soft_i2c_pipuck_0: i2c@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
/* Pi-puck board devices */
/* FT903 I2C slave */
/* ADC */
soft_i2c_pipuck_adc: ads1015@48 {
compatible = "ti,ads1015";
reg = <0x48>;
#address-cells = <1>;
#size-cells = <0>;
soft_i2c_pipuck_ain0: channel@4 {
reg = <4>;
ti,gain = <1>;
ti,datarate = <0>;
};
soft_i2c_pipuck_ain1: channel@5 {
reg = <5>;
ti,gain = <1>;
ti,datarate = <0>;
};
};
};
soft_i2c_pipuck_1: i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
/* e-puck devices */
};
soft_i2c_pipuck_2: i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
/* Sensor Board 1 */
};
soft_i2c_pipuck_3: i2c@3 {
#address-cells = <1>;
#size-cells = <0>;
reg = <3>;
/* Sensor Board 2 */
};
soft_i2c_pipuck_4: i2c@4 {
#address-cells = <1>;
#size-cells = <0>;
reg = <4>;
/* Sensor Board 3 */
};
soft_i2c_pipuck_5: i2c@5 {
#address-cells = <1>;
#size-cells = <0>;
reg = <5>;
/* Sensor Board 4 */
};
soft_i2c_pipuck_6: i2c@6 {
#address-cells = <1>;
#size-cells = <0>;
reg = <6>;
/* e-puck */
/* Sensor Board 5 */
};
soft_i2c_pipuck_7: i2c@7 {
#address-cells = <1>;
#size-cells = <0>;
reg = <7>;
/* Sensor Board 6 */
};
};
};
};
};
fragment@9 {
target-path = "/aliases";
__dormant__ {
i2c_gpio = "/soft_i2c@1";
};
};
fragment@10 {
target-path = "/__symbols__";
__dormant__ {
i2c_gpio = "/soft_i2c@1";
};
};
/* External ADC channels */
fragment@11 {
target = <&pipuck_adc>;
__dormant__ {
#address-cells = <1>;
#size-cells = <0>;
pipuck_ain2: channel@6 {
reg = <6>;
ti,gain = <2>;
ti,datarate = <4>;
};
};
};
fragment@12 {
target = <&soft_i2c_pipuck_adc>;
__dormant__ {
#address-cells = <1>;
#size-cells = <0>;
soft_i2c_pipuck_ain2: channel@6 {
reg = <6>;
ti,gain = <2>;
ti,datarate = <4>;
};
};
};
fragment@13 {
target = <&pipuck_adc>;
__dormant__ {
#address-cells = <1>;
#size-cells = <0>;
pipuck_ain3: channel@7 {
reg = <7>;
ti,gain = <2>;
ti,datarate = <4>;
};
};
};
fragment@14 {
target = <&soft_i2c_pipuck_adc>;
__dormant__ {
#address-cells = <1>;
#size-cells = <0>;
soft_i2c_pipuck_ain3: channel@7 {
reg = <7>;
ti,gain = <2>;
ti,datarate = <4>;
};
};
};
/* PWM audio output on GPIO pin */
fragment@15 {
target = <&gpio>;
__overlay__ {
pwm_pins: pwm_pins {
brcm,pins = <12>;
brcm,function = <4>; // Alt0
};
pipuck_audio_enable_pins: pipuck_audio_enable_pins {
brcm,pins = <22>;
brcm,function = <1>; // GPIO out
};
};
};
fragment@16 {
target = <&pwm>;
__overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&pwm_pins &pipuck_audio_enable_pins>;
status = "okay";
};
};
/* I2S microphone audio input */
/* (based on https://www.raspberrypi.org/forums/viewtopic.php?t=173640) */
fragment@17 {
target = <&i2s>;
__overlay__ {
status = "okay";
};
};
fragment@18 {
target-path = "/";
__overlay__ {
card_codec: card-codec {
#sound-dai-cells = <0>;
compatible = "invensense,ics43432";
status = "okay";
};
};
};
fragment@19 {
target = <&sound>;
slave_overlay: __overlay__ {
compatible = "simple-audio-card";
simple-audio-card,format = "i2s";
simple-audio-card,name = "pipuck-mic";
status = "okay";
simple-audio-card,cpu {
sound-dai = <&i2s>;
};
dailink0_slave: simple-audio-card,codec {
sound-dai = <&card_codec>;
};
};
};
__overrides__ {
shutdown_key_disable = <0>,"-1";
shutdown_key_debounce = <&pipuck_shutdown>,"debounce-interval:0";
bluetooth_disable = <0>,"+2+3+4+5";
ain2 = <0>,"+11";
ain2_soft_i2c = <0>,"+12";
ain2_gain = <&pipuck_ain2>,"ti,gain:0",
<&soft_i2c_pipuck_ain2>,"ti,gain:0";
ain2_datarate = <&pipuck_ain2>,"ti,datarate:0",
<&soft_i2c_pipuck_ain2>,"ti,datarate:0";
ain3 = <0>,"+13";
ain3_soft_i2c = <0>,"+14";
ain3_gain = <&pipuck_ain3>,"ti,gain:0",
<&soft_i2c_pipuck_ain3>,"ti,gain:0";
ain3_datarate = <&pipuck_ain3>,"ti,datarate:0",
<&soft_i2c_pipuck_ain3>,"ti,datarate:0";
soft_i2c = <0>,"-6+7+8+9+10";
soft_i2c_gpio_delay_us = <&i2c_gpio>,"i2c-gpio,delay-us:0";
};
};