PICO-IMX8M-MINI UART3

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As we saw there are already define UART3 in PICO-IMX8M-MINI device tree as below.
https://github.com/TechNexion/linux-tn-imx/blob/tn-imx_5.4.70_2.3.0-stable/arch/arm64/boot/dts/freescale/imx8mm-pico.dtsi#L457
May we double check can use below pins for UART port?
J7 for PICO-IMX8M-MINI back connector.
UART_TX / ECSPI1_MOSI / J7 57
UART_RX / ECSPI1_SCLK / J7 55
UART_RTS / ECSPI_SS0 / J7 53
UART_CTS / ECSPI_MISO / J7 59