There is a header for a DB9 serial port, but any attempts to use
hardware handshaking fail. Enable RTS and CTS pin muxing and enable
handshaking in the uart node.
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
pinctrl-0 = <&pinctrl_uart3>;
assigned-clocks = <&clk IMX8MM_CLK_UART3>;
assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>;
+ uart-has-rtscts;
status = "okay";
};
fsl,pins = <
MX8MM_IOMUXC_ECSPI1_SCLK_UART3_DCE_RX 0x40
MX8MM_IOMUXC_ECSPI1_MOSI_UART3_DCE_TX 0x40
+ MX8MM_IOMUXC_ECSPI1_MISO_UART3_DCE_CTS_B 0x40
+ MX8MM_IOMUXC_ECSPI1_SS0_UART3_DCE_RTS_B 0x40
>;
};