| Tom Rini | 6b642ac | 2024-10-01 12:20:28 -0600 | [diff] [blame] | 1 | // SPDX-License-Identifier: (GPL-2.0+ OR MIT) |
| 2 | /* |
| 3 | * Copyright (C) 2023 PHYTEC Messtechnik GmbH |
| 4 | * Author: Jens Lang <j.lang@phytec.de> |
| 5 | * |
| 6 | * Tauri-L RS232 with RTS/CTS hardware flow control: |
| 7 | * - UART4_TX becomes RTS |
| 8 | * - UART4_RX becomes CTS |
| 9 | */ |
| 10 | |
| 11 | #include <dt-bindings/clock/imx8mm-clock.h> |
| 12 | #include "imx8mm-pinfunc.h" |
| 13 | |
| 14 | /dts-v1/; |
| 15 | /plugin/; |
| 16 | |
| Tom Rini | 6b642ac | 2024-10-01 12:20:28 -0600 | [diff] [blame] | 17 | &uart2 { |
| 18 | pinctrl-names = "default"; |
| 19 | pinctrl-0 = <&pinctrl_uart2>; |
| 20 | assigned-clocks = <&clk IMX8MM_CLK_UART2>; |
| 21 | assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>; |
| 22 | uart-has-rtscts; |
| 23 | status = "okay"; |
| 24 | }; |
| 25 | |
| 26 | &iomuxc { |
| 27 | pinctrl_uart2: uart2grp { |
| 28 | fsl,pins = < |
| 29 | MX8MM_IOMUXC_UART2_RXD_UART2_DCE_RX 0x00 |
| 30 | MX8MM_IOMUXC_UART2_TXD_UART2_DCE_TX 0x00 |
| 31 | MX8MM_IOMUXC_UART4_RXD_UART2_DCE_CTS_B 0x00 |
| 32 | MX8MM_IOMUXC_UART4_TXD_UART2_DCE_RTS_B 0x00 |
| 33 | >; |
| 34 | }; |
| 35 | }; |