Commit e31498cf authored by Fabrice DJIATSA's avatar Fabrice DJIATSA Committed by Chris Friedt
Browse files

tests: drivers: uart: elementary: stm32: add support for hw flow control 



- Configure and attach DMA for each USART node.
- Enable hardware flow control capability.
- Add RTS/CTS pin name signals.

Note: Some platform series are missing due to conflicts with other pins
used by different test drivers
(RTS pin should be connected to the CTS pin.)

Signed-off-by: default avatarFabrice DJIATSA <fabrice.djiatsa-ext@st.com>
parent a86d9029

tests/drivers/uart/uart_elementary/boards/b_u585i_iot02a.overlay

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/*

 * Copyright (c) 2025 STMicroelectronics

 *

 * SPDX-License-Identifier: Apache-2.0

 */



dut: &usart3 {

	pinctrl-0 = <&usart3_tx_pd8 &usart3_rx_pd9 &usart3_rts_pd2 &usart3_cts_pb13>;

	dmas = <&gpdma1 0 29 STM32_DMA_PERIPH_TX>,

	       <&gpdma1 1 28 STM32_DMA_PERIPH_RX>;

	dma-names = "tx", "rx";

	hw-flow-control;

};

tests/drivers/uart/uart_elementary/boards/nucleo_f091rc.overlay

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/*

 * Copyright (c) 2025 STMicroelectronics

 *

 * SPDX-License-Identifier: Apache-2.0

 */



dut: &usart3 {

	pinctrl-0 = <&usart3_tx_pc10 &usart3_rx_pc11 &usart3_rts_pb14 &usart3_cts_pb13>;

	pinctrl-names = "default";

	dmas = <&dma1 2 (STM32_DMA_PERIPH_TX | STM32_DMA_PRIORITY_HIGH)>,

	       <&dma1 1 (STM32_DMA_PERIPH_RX | STM32_DMA_PRIORITY_HIGH)>;

	dma-names = "tx", "rx";

	hw-flow-control;

	status = "okay";

};

tests/drivers/uart/uart_elementary/boards/nucleo_g071rb.overlay

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/*

 * Copyright (c) 2025 STMicroelectronics

 *

 * SPDX-License-Identifier: Apache-2.0

 */



dut: &usart1 {

	pinctrl-0 = <&usart1_tx_pb6 &usart1_rx_pb7 &usart1_rts_pa12 &usart1_cts_pa11>;

	dmas = <&dmamux1 3 51 STM32_DMA_PERIPH_TX>,

	       <&dmamux1 4 50 STM32_DMA_PERIPH_RX>;

	dma-names = "tx", "rx";

	hw-flow-control;

};



&dma1 {

	status = "okay";

};



&dmamux1 {

	status = "okay";

};



&usb {

	status = "disabled"

};

tests/drivers/uart/uart_elementary/boards/nucleo_g474re.overlay

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/*

 * Copyright (c) 2025 STMicroelectronics

 *

 * SPDX-License-Identifier: Apache-2.0

 */



dut: &usart1 {

	pinctrl-0 = <&usart1_tx_pc4 &usart1_rx_pc5  &usart1_rts_pa12 &usart1_cts_pa11>;

	dmas = <&dmamux1 2 25 STM32_DMA_PERIPH_TX>,

	       <&dmamux1 1 24 STM32_DMA_PERIPH_RX>;

	dma-names = "tx", "rx";

	hw-flow-control;

};



&dma1 {

	status = "okay";

};



&dmamux1 {

	status = "okay";

};

tests/drivers/uart/uart_elementary/boards/nucleo_h753zi.overlay

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/*

 * Copyright (c) 2025 STMicroelectronics

 *

 * SPDX-License-Identifier: Apache-2.0

 */



dut: &usart2 {

	dmas = <&dmamux1 2 44 STM32_DMA_PERIPH_TX>,

	       <&dmamux1 3 43 STM32_DMA_PERIPH_RX>;

	dma-names = "tx", "rx";

	pinctrl-0 = <&usart2_tx_pd5 &usart2_rx_pd6>;

	pinctrl-names = "default";

	current-speed = <115200>;

	hw-flow-control;

	status = "okay";

};



&dma1 {

	status = "okay";

};



&dma2 {

	status = "okay";

};



&dmamux1 {

	status = "okay";

};

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