Commit 4ce01ce3 authored by Adam Ford's avatar Adam Ford Committed by Shawn Guo
Browse files

arm64: dts: imx8mm-beacon: Enable RTS-CTS on UART3 



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: default avatarAdam Ford <aford173@gmail.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 42c1a6f6

arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi

+3 −0
Original line number Diff line number Diff line
@@ -278,6 +278,7 @@ 
	pinctrl-0 = <&pinctrl_uart3>;

	assigned-clocks = <&clk IMX8MM_CLK_UART3>;

	assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>;

	uart-has-rtscts;

	status = "okay";

};
@@ -386,6 +387,8 @@ 
		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

		>;

	};