arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi

   1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 /*
   3  * Device Tree Source for the R9A08G045S33 SMARC Carrier-II's SoM board.
   4  *
   5  * Copyright (C) 2023 Renesas Electronics Corp.
   6  */
   7
   8 #include <dt-bindings/gpio/gpio.h>
   9 #include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
  10
  11 /*
  12  * Signals of SW_CONFIG switches:
  13  * @SW_SD0_DEV_SEL:
  14  *      0 - SD0 is connected to eMMC
  15  *      1 - SD0 is connected to uSD0 card
  16  */
  17 #define SW_SD0_DEV_SEL  1
  18
  19 / {
  20         compatible = "renesas,rzg3s-smarcm", "renesas,r9a08g045s33", "renesas,r9a08g045";
  21
  22         aliases {
  23                 mmc0 = &sdhi0;
  24         };
  25
  26         chosen {
  27                 bootargs = "ignore_loglevel";
  28                 stdout-path = "serial0:115200n8";
  29         };
  30
  31         memory@48000000 {
  32                 device_type = "memory";
  33                 /* First 128MB is reserved for secure area. */
  34                 reg = <0x0 0x48000000 0x0 0x38000000>;
  35         };
  36
  37         vcc_sdhi0: regulator0 {
  38                 compatible = "regulator-fixed";
  39                 regulator-name = "SDHI0 Vcc";
  40                 regulator-min-microvolt = <3300000>;
  41                 regulator-max-microvolt = <3300000>;
  42                 gpios = <&pinctrl RZG2L_GPIO(2, 1) GPIO_ACTIVE_HIGH>;
  43                 enable-active-high;
  44         };
  45
  46 #if SW_SD0_DEV_SEL
  47         vccq_sdhi0: regulator1 {
  48                 compatible = "regulator-gpio";
  49                 regulator-name = "SDHI0 VccQ";
  50                 regulator-min-microvolt = <1800000>;
  51                 regulator-max-microvolt = <3300000>;
  52                 gpios = <&pinctrl RZG2L_GPIO(2, 2) GPIO_ACTIVE_HIGH>;
  53                 gpios-states = <1>;
  54                 states = <3300000 1>, <1800000 0>;
  55         };
  56 #else
  57         reg_1p8v: regulator1 {
  58                 compatible = "regulator-fixed";
  59                 regulator-name = "fixed-1.8V";
  60                 regulator-min-microvolt = <1800000>;
  61                 regulator-max-microvolt = <1800000>;
  62                 regulator-boot-on;
  63                 regulator-always-on;
  64         };
  65 #endif
  66 };
  67
  68 &extal_clk {
  69         clock-frequency = <24000000>;
  70 };
  71
  72 #if SW_SD0_DEV_SEL
  73 /* SD0 slot */
  74 &sdhi0 {
  75         pinctrl-0 = <&sdhi0_pins>;
  76         pinctrl-1 = <&sdhi0_uhs_pins>;
  77         pinctrl-names = "default", "state_uhs";
  78         vmmc-supply = <&vcc_sdhi0>;
  79         vqmmc-supply = <&vccq_sdhi0>;
  80         bus-width = <4>;
  81         sd-uhs-sdr50;
  82         sd-uhs-sdr104;
  83         max-frequency = <125000000>;
  84         status = "okay";
  85 };
  86 #else
  87 /* eMMC */
  88 &sdhi0 {
  89         pinctrl-0 = <&sdhi0_emmc_pins>;
  90         pinctrl-1 = <&sdhi0_emmc_pins>;
  91         pinctrl-names = "default", "state_uhs";
  92         vmmc-supply = <&vcc_sdhi0>;
  93         vqmmc-supply = <&reg_1p8v>;
  94         bus-width = <8>;
  95         mmc-hs200-1_8v;
  96         non-removable;
  97         fixed-emmc-driver-type = <1>;
  98         max-frequency = <125000000>;
  99         status = "okay";
 100 };
 101 #endif
 102
 103 &pinctrl {
 104         sdhi0_pins: sd0 {
 105                 data {
 106                         pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3";
 107                         power-source = <3300>;
 108                 };
 109
 110                 ctrl {
 111                         pins = "SD0_CLK", "SD0_CMD";
 112                         power-source = <3300>;
 113                 };
 114
 115                 cd {
 116                         pinmux = <RZG2L_PORT_PINMUX(0, 0, 1)>; /* SD0_CD */
 117                 };
 118         };
 119
 120         sdhi0_uhs_pins: sd0-uhs {
 121                 data {
 122                         pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3";
 123                         power-source = <1800>;
 124                 };
 125
 126                 ctrl {
 127                         pins = "SD0_CLK", "SD0_CMD";
 128                         power-source = <1800>;
 129                 };
 130
 131                 cd {
 132                         pinmux = <RZG2L_PORT_PINMUX(0, 0, 1)>; /* SD0_CD */
 133                 };
 134         };
 135
 136         sdhi0_emmc_pins: sd0-emmc {
 137                 pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3",
 138                        "SD0_DATA4", "SD0_DATA5", "SD0_DATA6", "SD0_DATA7",
 139                        "SD0_CLK", "SD0_CMD", "SD0_RST#";
 140                 power-source = <1800>;
 141         };
 142 };