1// SPDX-License-Identifier: (GPL-2.0 or MIT) 2/* 3 * Device Tree Source for the Spider CPU board 4 * 5 * Copyright (C) 2021 Renesas Electronics Corp. 6 */ 7 8#include "r8a779f0.dtsi" 9 10/ { 11 model = "Renesas Spider CPU board"; 12 compatible = "renesas,spider-cpu", "renesas,r8a779f0"; 13 14 aliases { 15 serial0 = &scif3; 16 serial1 = &scif0; 17 }; 18 19 chosen { 20 bootargs = "ignore_loglevel rw root=/dev/nfs ip=on"; 21 stdout-path = "serial0:115200n8"; 22 }; 23 24 memory@48000000 { 25 device_type = "memory"; 26 /* first 128MB is reserved for secure area. */ 27 reg = <0x0 0x48000000 0x0 0x78000000>; 28 }; 29 30 memory@480000000 { 31 device_type = "memory"; 32 reg = <0x4 0x80000000 0x0 0x80000000>; 33 }; 34 35 reg_1p8v: regulator-1p8v { 36 compatible = "regulator-fixed"; 37 regulator-name = "fixed-1.8V"; 38 regulator-min-microvolt = <1800000>; 39 regulator-max-microvolt = <1800000>; 40 regulator-boot-on; 41 regulator-always-on; 42 }; 43 44 reg_3p3v: regulator-3p3v { 45 compatible = "regulator-fixed"; 46 regulator-name = "fixed-3.3V"; 47 regulator-min-microvolt = <3300000>; 48 regulator-max-microvolt = <3300000>; 49 regulator-boot-on; 50 regulator-always-on; 51 }; 52}; 53 54&extal_clk { 55 clock-frequency = <20000000>; 56}; 57 58&extalr_clk { 59 clock-frequency = <32768>; 60}; 61 62&i2c4 { 63 pinctrl-0 = <&i2c4_pins>; 64 pinctrl-names = "default"; 65 66 status = "okay"; 67 clock-frequency = <400000>; 68 69 eeprom@50 { 70 compatible = "rohm,br24g01", "atmel,24c01"; 71 label = "cpu-board"; 72 reg = <0x50>; 73 pagesize = <8>; 74 }; 75}; 76 77/* 78 * This board also has a microSD slot which we will not support upstream 79 * because we cannot directly switch voltages in software. 80 */ 81&mmc0 { 82 pinctrl-0 = <&mmc_pins>; 83 pinctrl-1 = <&mmc_pins>; 84 pinctrl-names = "default", "state_uhs"; 85 86 vmmc-supply = <®_3p3v>; 87 vqmmc-supply = <®_1p8v>; 88 mmc-hs200-1_8v; 89 mmc-hs400-1_8v; 90 bus-width = <8>; 91 no-sd; 92 no-sdio; 93 non-removable; 94 full-pwr-cycle-in-suspend; 95 status = "okay"; 96}; 97 98&pfc { 99 pinctrl-0 = <&scif_clk_pins>; 100 pinctrl-names = "default"; 101 102 i2c4_pins: i2c4 { 103 groups = "i2c4"; 104 function = "i2c4"; 105 }; 106 107 mmc_pins: mmc { 108 groups = "mmc_data8", "mmc_ctrl", "mmc_ds"; 109 function = "mmc"; 110 power-source = <1800>; 111 }; 112 113 scif0_pins: scif0 { 114 groups = "scif0_data", "scif0_ctrl"; 115 function = "scif0"; 116 }; 117 118 scif3_pins: scif3 { 119 groups = "scif3_data", "scif3_ctrl"; 120 function = "scif3"; 121 }; 122 123 scif_clk_pins: scif_clk { 124 groups = "scif_clk"; 125 function = "scif_clk"; 126 }; 127}; 128 129&rwdt { 130 timeout-sec = <60>; 131 status = "okay"; 132}; 133 134&scif0 { 135 pinctrl-0 = <&scif0_pins>; 136 pinctrl-names = "default"; 137 138 uart-has-rtscts; 139 status = "okay"; 140}; 141 142&scif3 { 143 pinctrl-0 = <&scif3_pins>; 144 pinctrl-names = "default"; 145 146 uart-has-rtscts; 147 status = "okay"; 148}; 149 150&scif_clk { 151 clock-frequency = <24000000>; 152}; 153