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boards: arm: b_l072z_lrwan1: Add the SX1276 LoRa radio

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Wire up the SX1276 LoRa radio inside the CMWX1ZZABZ module.

Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se>
This commit is contained in:
Andreas Sandberg 2020-04-13 23:36:52 +01:00 committed by Maureen Helm
parent 0171bd9578
commit 2de3e7bd82
2 changed files with 23 additions and 0 deletions
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21
boards/arm/b_l072z_lrwan1/b_l072z_lrwan1.dts
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@ -54,6 +54,7 @@
led3 = &red_led;
sw0 = &user_button;
eeprom-0 = &eeprom;
lora0 = &lora;
};
};
@ -73,6 +74,26 @@ arduino_i2c: &i2c1 {};
&spi1 {
status = "okay";
cs-gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
lora: sx1276@0 {
compatible = "semtech,sx1276";
reg = <0>;
label = "sx1276";
reset-gpios = <&gpioc 0 GPIO_ACTIVE_LOW>;
dio-gpios = <&gpiob 4 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>,
<&gpiob 1 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>,
<&gpiob 0 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>,
<&gpioc 13 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>,
<&gpioa 5 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>,
<&gpioa 4 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>;
rfi-enable-gpios = <&gpioa 1 GPIO_ACTIVE_HIGH>;
rfo-enable-gpios = <&gpioc 2 GPIO_ACTIVE_HIGH>;
pa-boost-enable-gpios = <&gpioc 1 GPIO_ACTIVE_HIGH>;
tcxo-power-gpios = <&gpioa 12 GPIO_ACTIVE_HIGH>;
tcxo-power-startup-delay-ms = <5>;
spi-max-frequency = <1000000>;
};
};
&spi2 {

2
boards/arm/b_l072z_lrwan1/doc/index.rst
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@ -141,6 +141,8 @@ The Zephyr B-L072Z-LRWAN1 Discovery board configuration supports the following h
+-----------+------------+-------------------------------------+
| USB | on-chip | usb |
+-----------+------------+-------------------------------------+
| LoRa | on-module | sx1276 |
+-----------+------------+-------------------------------------+
Other hardware features are not yet supported on this Zephyr port.