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// SPDX-License-Identifier: (GPL-2.0 or MIT)
/*
* Device Tree Source for the Spider CPU board
*
* Copyright (C) 2021 Renesas Electronics Corp.
*/
#include <dt-bindings/gpio/gpio.h>
#include "r8a779f0.dtsi"
/ {
model = "Renesas Spider CPU board";
compatible = "renesas,spider-cpu", "renesas,r8a779f0";
aliases {
serial0 = &hscif0;
serial1 = &scif0;
};
chosen {
bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
stdout-path = "serial0:1843200n8";
};
memory@48000000 {
device_type = "memory";
/* first 128MB is reserved for secure area. */
reg = <0x0 0x48000000 0x0 0x78000000>;
};
memory@480000000 {
device_type = "memory";
reg = <0x4 0x80000000 0x0 0x80000000>;
};
rc21012_ufs: clk-rc21012-ufs {
compatible = "fixed-clock";
clock-frequency = <38400000>;
#clock-cells = <0>;
};
reg_1p8v: regulator-1p8v {
compatible = "regulator-fixed";
regulator-name = "fixed-1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
reg_3p3v: regulator-3p3v {
compatible = "regulator-fixed";
regulator-name = "fixed-3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
};
&extal_clk {
clock-frequency = <20000000>;
};
&extalr_clk {
clock-frequency = <32768>;
};
&hscif0 {
pinctrl-0 = <&hscif0_pins>;
pinctrl-names = "default";
uart-has-rtscts;
status = "okay";
};
&i2c0 {
pinctrl-0 = <&i2c0_pins>;
pinctrl-names = "default";
status = "okay";
clock-frequency = <400000>;
gpio_exp_20: gpio@20 {
compatible = "ti,tca9554";
reg = <0x20>;
gpio-controller;
#gpio-cells = <2>;
};
};
&i2c4 {
pinctrl-0 = <&i2c4_pins>;
pinctrl-names = "default";
status = "okay";
clock-frequency = <400000>;
eeprom@50 {
compatible = "rohm,br24g01", "atmel,24c01";
label = "cpu-board";
reg = <0x50>;
pagesize = <8>;
};
};
/*
* This board also has a microSD slot which we will not support upstream
* because we cannot directly switch voltages in software.
*/
&mmc0 {
pinctrl-0 = <&mmc_pins>;
pinctrl-1 = <&mmc_pins>;
pinctrl-names = "default", "state_uhs";
vmmc-supply = <®_3p3v>;
vqmmc-supply = <®_1p8v>;
mmc-hs200-1_8v;
mmc-hs400-1_8v;
bus-width = <8>;
no-sd;
no-sdio;
non-removable;
full-pwr-cycle-in-suspend;
status = "okay";
};
&pfc {
pinctrl-0 = <&scif_clk_pins>;
pinctrl-names = "default";
hscif0_pins: hscif0 {
groups = "hscif0_data", "hscif0_ctrl";
function = "hscif0";
};
i2c0_pins: i2c0 {
groups = "i2c0";
function = "i2c0";
};
i2c4_pins: i2c4 {
groups = "i2c4";
function = "i2c4";
};
mmc_pins: mmc {
groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
function = "mmc";
power-source = <1800>;
};
scif0_pins: scif0 {
groups = "scif0_data", "scif0_ctrl";
function = "scif0";
};
scif_clk_pins: scif_clk {
groups = "scif_clk";
function = "scif_clk";
};
};
&rwdt {
timeout-sec = <60>;
status = "okay";
};
&scif0 {
pinctrl-0 = <&scif0_pins>;
pinctrl-names = "default";
uart-has-rtscts;
status = "okay";
};
&scif_clk {
clock-frequency = <24000000>;
};
&ufs {
status = "okay";
};
&ufs30_clk {
compatible = "gpio-gate-clock";
clocks = <&rc21012_ufs>;
enable-gpios = <&gpio_exp_20 4 GPIO_ACTIVE_LOW>;
/delete-property/ clock-frequency;
};
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