Hi,
I have a board with imx8mp running linux 5.4 . I would like to configure UART3 however with GPIO64/65 as RTS/CTS pins. Would that be possible? Is there any restriction to what GPIO pins can be used for RTS/CTS.(in other words, can I use ANY GPIO pins for RTS/CTS and hook it up to the uart3 in device tree as done in the below forum link?) I see an query below for imx8mQ which is similar, but unanswered.
Is the configuration mentioned here similar to what I am looking for?
Thanks
Regards
Hi @mahesh_hns
You can search in arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h. There are only two pads can support RTS/CTS on UART3, they are MX8MP_IOMUXC_ECSPI1_MISO__UART3_DCE_CTS and