1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2/* 3 * Device Tree Source for the RZ/G2LC SMARC EVK parts 4 * 5 * Copyright (C) 2022 Renesas Electronics Corp. 6 */ 7 8#include <dt-bindings/gpio/gpio.h> 9#include <dt-bindings/pinctrl/rzg2l-pinctrl.h> 10 11/* 12 * DIP-Switch SW1 setting on SoM 13 * 1 : High; 0: Low 14 * SW1-2 : SW_SD0_DEV_SEL (1: eMMC; 0: uSD) 15 * SW1-3 : SW_SCIF_CAN (1: CAN1; 0: SCIF1) 16 * SW1-4 : SW_RSPI_CAN (1: CAN1; 0: RSPI1) 17 * SW1-5 : SW_I2S0_I2S1 (1: I2S2 (HDMI audio); 0: I2S0) 18 * Please change below macros according to SW1 setting 19 */ 20 21#define SW_SD0_DEV_SEL 1 22 23#define SW_SCIF_CAN 0 24#if (SW_SCIF_CAN) 25/* Due to HW routing, SW_RSPI_CAN is always 0 when SW_SCIF_CAN is set to 1 */ 26#define SW_RSPI_CAN 0 27#else 28/* Please set SW_RSPI_CAN. Default value is 1 */ 29#define SW_RSPI_CAN 1 30#endif 31 32#if (SW_SCIF_CAN & SW_RSPI_CAN) 33#error "Can not set 1 to both SW_SCIF_CAN and SW_RSPI_CAN due to HW routing" 34#endif 35 36#include "rzg2lc-smarc-som.dtsi" 37#include "rzg2lc-smarc-pinfunction.dtsi" 38#include "rz-smarc-common.dtsi" 39 40/* comment the #define statement to disable SCIF1 (SER0) on PMOD1 (CN7) */ 41#define PMOD1_SER0 1 42 43/ { 44 aliases { 45 serial1 = &scif1; 46 i2c2 = &i2c2; 47 }; 48}; 49 50#if (SW_SCIF_CAN || SW_RSPI_CAN) 51&canfd { 52 pinctrl-0 = <&can1_pins>; 53 /delete-node/ channel@0; 54}; 55#else 56&canfd { 57 /delete-property/ pinctrl-0; 58 /delete-property/ pinctrl-names; 59 status = "disabled"; 60}; 61#endif 62 63&i2c2 { 64 pinctrl-0 = <&i2c2_pins>; 65 pinctrl-names = "default"; 66 clock-frequency = <400000>; 67 68 status = "okay"; 69 70 wm8978: codec@1a { 71 compatible = "wlf,wm8978"; 72 #sound-dai-cells = <0>; 73 reg = <0x1a>; 74 }; 75}; 76 77/* 78 * To enable SCIF1 (SER0) on PMOD1 (CN7), On connector board 79 * SW1 should be at position 2->3 so that SER0_CTS# line is activated 80 * SW2 should be at position 2->3 so that SER0_TX line is activated 81 * SW3 should be at position 2->3 so that SER0_RX line is activated 82 * SW4 should be at position 2->3 so that SER0_RTS# line is activated 83 */ 84#if (!SW_SCIF_CAN && PMOD1_SER0) 85&scif1 { 86 pinctrl-0 = <&scif1_pins>; 87 pinctrl-names = "default"; 88 89 uart-has-rtscts; 90 status = "okay"; 91}; 92#endif 93