1/ { 2 aliases { 3 modem-uart = &usart2; 4 modem = &modem; 5 }; 6}; 7 8&gpioh { 9 misc_fixed_usart2 { 10 gpio-hog; 11 gpios = <13 GPIO_ACTIVE_HIGH>; 12 output-high; 13 }; 14}; 15 16&gpdma1 { 17 status = "okay"; 18}; 19 20/* BG95 */ 21&usart2 { 22 pinctrl-0 = <&usart2_tx_pa2 &usart2_rx_pa3 &usart2_rts_pa1 &usart2_cts_pa0>; 23 pinctrl-names = "default"; 24 current-speed = <115200>; 25 hw-flow-control; 26 27 dmas = <&gpdma1 0 27 STM32_DMA_PERIPH_TX 28 &gpdma1 1 26 STM32_DMA_PERIPH_RX>; 29 dma-names = "tx", "rx"; 30 31 status = "okay"; 32 33 modem: modem { 34 compatible = "zephyr,gsm-ppp"; 35 status = "okay"; 36 }; 37}; 38