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digi,mca-cc8.txt
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digi,mca-cc8.txt
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* Digi ConnectCore 8 SoMs Micro-Controller Assist (MCA)
The CC8 MCA consists of a varied group of sub-devices (I2C Only):
Device Description
------ ------------
adc ADC channels (multiplexed with IOs)
gpio IO pins (multiplexed with ADCs)
pwrkey Power key
rtc Real-Time Clock
watchdog Watchdog
======
Required properties:
- compatible: must be one of
"digi,mca-cc8x".
"digi,mca-cc8m".
- reg : Specifies the I2C slave address (this defaults to 0x63 but it can be
modified to match the chip's OTP settings).
- interrupt-parent : Specifies the reference to the interrupt controller for
the MCA.
- interrupts : IRQ line information.
- interrupt-controller
Optional properties:
- fw-update-gpio : Control GPIO for MCA firmware update.
Sub-nodes:
- adc : This node defines settings for the ADC channels associated with the
MCA. Refer to binding at:
"Documentation/devicetree/bindings/iio/adc/digi,mca-adc.txt"
- gpio : This node defines settings for the GPIO pins associated with the MCA.
Refer to binding at:
"Documentation/devicetree/bindings/gpio/gpio-mca.txt"
- pwrkey : This node defines settings for the power key associated with the MCA.
Refer to binding at:
"Documentation/devicetree/bindings/input/digi,mca-powerkey.txt"
- rtc : This node defines settings for the Real-Time Clock associated with
the MCA. Refer to binding at:
"Documentation/devicetree/bindings/rtc/digi,mca-rtc.txt"
- watchdog : This node defines settings for the Watchdog timer associated
with the MCA. Refer to binding at:
"Documentation/devicetree/bindings/watchdog/mca-wdt.txt"
Example:
mca_cc8x: mca@63 {
compatible = "digi,mca-cc8x";
reg = <0x63>;
interrupt-parent = <&wu>;
interrupts = <GIC_SPI 177 IRQ_TYPE_EDGE_HIGH>;
interrupt-controller;
#interrupt-cells = <2>;
fw-update-gpio = <&gpio3 9 GPIO_ACTIVE_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mca_cc8x>;
mca_adc: adc {
compatible = "digi,mca-cc8x-adc";
digi,adc-ch-list = <4>;
};
pwrkey {
compatible = "digi,mca-cc8x-pwrkey";
digi,key-power;
digi,key-power-up;
digi,key-sleep;
digi,debounce-ms = <100>;
digi,pwroff-delay-sec = <6>;
digi,pwroff-guard-sec = <30>;
};
mca_gpio: gpio {
compatible = "digi,mca-cc8x-gpio";
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&mca_cc8x>;
interrupt-controller;
#interrupt-cells = <2>;
/* Disable all mca GPIOs as power off wake up sources */
pwroff-wakeup-capable-ios = <>;
};
rtc {
compatible = "digi,mca-cc8x-rtc";
};
wdt {
compatible = "digi,mca-cc8x-wdt";
};
pwms {
compatible = "digi,mca-pwm";
#address-cells = <1>;
#size-cells = <0>;
mca_pwm0: pwm@0 {
reg = <0>;
pwm-channels = <6>;
#pwm-cells = <3>;
};
mca_pwm1: pwm@1 {
reg = <1>;
pwm-channels = <2>;
#pwm-cells = <3>;
};
mca_pwm2: pwm@2 {
reg = <2>;
pwm-channels = <2>;
#pwm-cells = <3>;
};
};
mca_tamper: tamper {
compatible = "digi,mca-cc8x-tamper";
};
mca_uart: uart {
compatible = "digi,mca-cc8x-uart";
#address-cells = <1>;
#size-cells = <0>;
mca_uart0: serial@0x900 {
reg = <0x900>;
index = <0>;
};
mca_uart1: serial@0x920 {
reg = <0x920>;
index = <1>;
};
mca_uart2: serial@0x940 {
reg = <0x940>;
index = <2>;
};
};
};
mca_cc8m: mca@63 {
compatible = "digi,mca-cc8m";
reg = <0x63>;
interrupt-parent = <&gpio3>;
interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <2>;
fw-update-gpio = <&gpio1 4 GPIO_ACTIVE_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mca_cc8m>;
mca_adc: adc {
compatible = "digi,mca-cc8m-adc";
digi,adc-ch-list = <4>;
};
pwrkey {
compatible = "digi,mca-cc8m-pwrkey";
digi,key-power;
digi,key-power-up;
digi,key-sleep;
digi,debounce-ms = <100>;
digi,pwroff-delay-sec = <6>;
digi,pwroff-guard-sec = <30>;
};
mca_gpio: gpio {
compatible = "digi,mca-cc8m-gpio";
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&mca_cc8m>;
interrupt-controller;
#interrupt-cells = <2>;
/* Disable all mca GPIOs as power off wake up sources */
pwroff-wakeup-capable-ios = <>;
};
rtc {
compatible = "digi,mca-cc8m-rtc";
};
wdt {
compatible = "digi,mca-cc8m-wdt";
};
pwms {
compatible = "digi,mca-pwm";
#address-cells = <1>;
#size-cells = <0>;
mca_pwm0: pwm@0 {
reg = <0>;
pwm-channels = <6>;
#pwm-cells = <3>;
};
};
mca_tamper: tamper {
compatible = "digi,mca-cc8m-tamper";
};
mca_uart: uart {
compatible = "digi,mca-cc8m-uart";
#address-cells = <1>;
#size-cells = <0>;
mca_uart0: serial@0x900 {
reg = <0x900>;
index = <0>;
};
mca_uart1: serial@0x920 {
reg = <0x920>;
index = <1>;
};
mca_uart2: serial@0x940 {
reg = <0x940>;
index = <2>;
};
};
};