diff options
Diffstat (limited to 'arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi new file mode 100644 index 000000000000..a45df1041705 --- /dev/null +++ b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi @@ -0,0 +1,152 @@ +// SPDX-License-Identifier: (GPL-2.0 or MIT) +/* + * Device Tree Source for the Spider CPU board + * + * Copyright (C) 2021 Renesas Electronics Corp. + */ + +#include "r8a779f0.dtsi" + +/ { + model = "Renesas Spider CPU board"; + compatible = "renesas,spider-cpu", "renesas,r8a779f0"; + + aliases { + serial0 = &scif3; + serial1 = &scif0; + }; + + chosen { + bootargs = "ignore_loglevel rw root=/dev/nfs ip=on"; + stdout-path = "serial0:115200n8"; + }; + + 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>; + }; + + 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>; +}; + +&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"; + + 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"; + }; + + scif3_pins: scif3 { + groups = "scif3_data", "scif3_ctrl"; + function = "scif3"; + }; + + 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"; +}; + +&scif3 { + pinctrl-0 = <&scif3_pins>; + pinctrl-names = "default"; + + uart-has-rtscts; + status = "okay"; +}; + +&scif_clk { + clock-frequency = <24000000>; +}; |