Re: [PATCH 6/7] arm64: dts: exynos: Add initial Exynos850 SoC support

[Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>]

On 15/12/2021 17:09, Sam Protsenko wrote:
> Samsung Exynos850 is ARMv8-based mobile-oriented SoC. This patch adds
> initial SoC support. It's not comprehensive yet, some more devices will
> be added later. Right now only crucial system components and most needed
> platform devices are defined.
> 
> Crucial features (needed to boot Linux up to shell with serial console):
> 
>   * Octa cores (Cortex-A55), supporting PSCI v1.0
>   * ARM architected timer (armv8-timer)
>   * Interrupt controller (GIC-400)
>   * Pinctrl nodes for GPIO
>   * Serial node
> 
> Basic platform features:
> 
>   * Clock controller CMUs
>   * OSCCLK clock
>   * RTC clock
>   * MCT timer
>   * ARM PMU (Performance Monitor Unit)
>   * Chip-id
>   * RTC
>   * Reset
>   * Watchdog timers
>   * eMMC
>   * I2C
>   * HSI2C
>   * USI
> 
> All those features were already enabled and tested on E850-96 board with
> minimal BusyBox rootfs.
> 
> Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
> ---
>  .../boot/dts/exynos/exynos850-pinctrl.dtsi    | 755 ++++++++++++++++++
>  arch/arm64/boot/dts/exynos/exynos850.dtsi     | 755 ++++++++++++++++++
>  2 files changed, 1510 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/exynos/exynos850-pinctrl.dtsi
>  create mode 100644 arch/arm64/boot/dts/exynos/exynos850.dtsi
> 
> diff --git a/arch/arm64/boot/dts/exynos/exynos850-pinctrl.dtsi b/arch/arm64/boot/dts/exynos/exynos850-pinctrl.dtsi
> new file mode 100644
> index 000000000000..ba4e8d3129ac
> --- /dev/null
> +++ b/arch/arm64/boot/dts/exynos/exynos850-pinctrl.dtsi
> @@ -0,0 +1,755 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Samsung's Exynos850 SoC pin-mux and pin-config device tree source
> + *
> + * Copyright (C) 2017 Samsung Electronics Co., Ltd.
> + * Copyright (C) 2021 Linaro Ltd.
> + *
> + * Samsung's Exynos850 SoC pin-mux and pin-config options are listed as device
> + * tree nodes in this file.
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/pinctrl/samsung.h>
> +
> +&pinctrl_alive {
> +	gpa0: gpa0 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpa1: gpa1 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpa2: gpa2 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpa3: gpa3 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpa4: gpa4 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpq0: gpq0 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	/* I2C5 (also called CAM_PMIC_I2C in TRM) */
> +	i2c5_pins: i2c5-pins {
> +		samsung,pins = "gpa3-5", "gpa3-6";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	/* I2C6 (also called MOTOR_I2C in TRM) */
> +	i2c6_pins: i2c6-pins {
> +		samsung,pins = "gpa3-7", "gpa4-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	/* USI: UART_DEBUG_0 pins */
> +	uart0_pins: uart0-pins {
> +		samsung,pins = "gpq0-0", "gpq0-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +	};
> +
> +	/* USI: UART_DEBUG_1 pins */
> +	uart1_pins: uart1-pins {
> +		samsung,pins = "gpa3-7", "gpa4-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +	};
> +};
> +
> +&pinctrl_cmgp {
> +	gpm0: gpm0 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpm1: gpm1 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpm2: gpm2 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpm3: gpm3 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpm4: gpm4 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gpm5: gpm5 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupt-parent = <&gic>;
> +		interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	/* USI_CMGP0: HSI2C function */
> +	hsi2c3_pins: hsi2c3-pins {
> +		samsung,pins = "gpm0-0", "gpm1-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	/* USI_CMGP0: UART function (4 pins, Auto Flow Control) */
> +	uart1_single_pins: uart1-single-pins {
> +		samsung,pins = "gpm0-0", "gpm1-0", "gpm2-0", "gpm3-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +	};
> +
> +	/* USI_CMGP0: UART function (2 pins, Non-Auto Flow Control) */
> +	uart1_dual_pins: uart1-dual-pins {
> +		samsung,pins = "gpm0-0", "gpm1-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +	};
> +
> +	/* USI_CMGP0: SPI function */
> +	spi1_pins: spi1-pins {
> +		samsung,pins = "gpm0-0", "gpm1-0", "gpm2-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	spi1_cs_pins: spi1-cs-pins {
> +		samsung,pins = "gpm3-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	spi1_cs_func_pins: spi1-cs-func-pins {
> +		samsung,pins = "gpm3-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;

This is almost the same as spi1_cs_pins (just func 2) - is it going to
be used? Do you need two different SPI CS settings?

> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	/* USI_CMGP1: HSI2C function */
> +	hsi2c4_pins: hsi2c4-pins {
> +		samsung,pins = "gpm4-0", "gpm5-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	/* USI_CMGP1: UART function (4 pins, Auto Flow Control) */
> +	uart2_single_pins: uart2-single-pins {
> +		samsung,pins = "gpm4-0", "gpm5-0", "gpm6-0", "gpm7-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +	};
> +
> +	/* USI_CMGP1: UART function (2 pins, Non-Auto Flow Control) */
> +	uart2_dual_pins: uart2-dual-pins {
> +		samsung,pins = "gpm4-0", "gpm5-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +	};
> +
> +	/* USI_CMGP1: SPI function */
> +	spi2_pins: spi2-pins {
> +		samsung,pins = "gpm4-0", "gpm5-0", "gpm6-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	spi2_cs_pins: spi2-cs-pins {
> +		samsung,pins = "gpm7-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	spi2_cs_func_pins: spi2-cs-func-pins {
> +		samsung,pins = "gpm7-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};

Same question as spi1

> +};
> +
> +&pinctrl_aud {
> +	gpb0: gpb0 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	gpb1: gpb1 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	aud_codec_mclk_pins: aud-codec-mclk-pins {
> +		samsung,pins = "gpb0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +	};
> +
> +	aud_codec_mclk_idle_pins: aud-codec-mclk-idle-pins {
> +		samsung,pins = "gpb0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +	};
> +
> +	aud_i2s0_pins: aud-i2s0-pins {
> +		samsung,pins = "gpb0-1", "gpb0-2", "gpb0-3", "gpb0-4";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +	};
> +
> +	aud_i2s0_idle_pins: aud-i2s0-idle-pins {
> +		samsung,pins = "gpb0-1", "gpb0-2", "gpb0-3", "gpb0-4";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +	};
> +
> +	aud_i2s1_pins: aud-i2s1-pins {
> +		samsung,pins = "gpb1-0", "gpb1-1", "gpb1-2", "gpb1-3";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +	};
> +
> +	aud_i2s1_idle_pins: aud-i2s1-idle-pins {
> +		samsung,pins = "gpb1-0", "gpb1-1", "gpb1-2", "gpb1-3";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +	};
> +
> +	aud_fm_pins: aud-fm-pins {
> +		samsung,pins = "gpb1-4";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +	};
> +
> +	aud_fm_idle_pins: aud-fm-idle-pins {
> +		samsung,pins = "gpb1-4";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +	};
> +};
> +
> +&pinctrl_hsi {
> +	gpf2: gpf2 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	sd2_clk_pins: sd2-clk-pins {
> +		samsung,pins = "gpf2-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV2>;
> +	};
> +
> +	sd2_clk_fast_slew_rate_1x_pins: sd2-clk-fast-slew-rate-1x-pins {
> +		samsung,pins = "gpf2-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV1>;
> +	};
> +
> +	sd2_clk_fast_slew_rate_1_5x_pins: sd2-clk-fast-slew-rate-1-5x-pins {
> +		samsung,pins = "gpf2-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV1_5>;
> +	};
> +
> +	sd2_clk_fast_slew_rate_2x_pins: sd2-clk-fast-slew-rate-2x-pins {
> +		samsung,pins = "gpf2-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV2>;
> +	};
> +
> +	sd2_clk_fast_slew_rate_2_5x_pins: sd2-clk-fast-slew-rate-2-5x-pins {
> +		samsung,pins = "gpf2-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV2_5>;
> +	};
> +
> +	sd2_clk_fast_slew_rate_3x_pins: sd2-clk-fast-slew-rate-3x-pins {
> +		samsung,pins = "gpf2-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV3>;
> +	};
> +
> +	sd2_clk_fast_slew_rate_4x_pins: sd2-clk-fast-slew-rate-4x-pins {
> +		samsung,pins = "gpf2-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV4>;
> +	};
> +
> +	sd2_cmd_pins: sd2-cmd-pins {
> +		samsung,pins = "gpf2-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV2>;
> +	 };
> +
> +	sd2_bus1_pins: sd2-bus1-pins {
> +		samsung,pins = "gpf2-2";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV2>;
> +	};
> +
> +	sd2_bus4_pins: sd2-bus4-pins {
> +		samsung,pins = "gpf2-3", "gpf2-4", "gpf2-5";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV2>;
> +	};
> +
> +	sd2_pdn_pins: sd2-pdn-pins {
> +		samsung,pins = "gpf2-0", "gpf2-1", "gpf2-2", "gpf2-3",
> +			       "gpf2-4", "gpf2-5";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +	};
> +};
> +
> +&pinctrl_core {
> +	gpf0: gpf0 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	gpf1: gpf1 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	sd0_clk_pins: sd0-clk-pins {
> +		samsung,pins = "gpf0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
> +	};
> +
> +	sd0_clk_fast_slew_rate_1x_pins: sd0-clk-fast-slew-rate-1x-pins {
> +		samsung,pins = "gpf0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	sd0_clk_fast_slew_rate_2x_pins: sd0-clk-fast-slew-rate-2x-pins {
> +		samsung,pins = "gpf0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV2>;
> +	};
> +
> +	sd0_clk_fast_slew_rate_3x_pins: sd0-clk-fast-slew-rate-3x-pins {
> +		samsung,pins = "gpf0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	sd0_clk_fast_slew_rate_4x_pins: sd0-clk-fast-slew-rate-4x-pins {
> +		samsung,pins = "gpf0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
> +	};
> +
> +	sd0_cmd_pins: sd0-cmd-pins {
> +		samsung,pins = "gpf0-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
> +	};
> +
> +	sd0_rdqs_pins: sd0-rdqs-pins {
> +		samsung,pins = "gpf0-2";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
> +	};
> +
> +	sd0_nreset_pins: sd0-nreset-pins {
> +		samsung,pins = "gpf0-3";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
> +	};
> +
> +	sd0_bus1_pins: sd0-bus1-pins {
> +		samsung,pins = "gpf1-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
> +	};
> +
> +	sd0_bus4_pins: sd0-bus4-pins {
> +		samsung,pins = "gpf1-1", "gpf1-2", "gpf1-3";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
> +	};
> +
> +	sd0_bus8_pins: sd0-bus8-pins {
> +		samsung,pins = "gpf1-4", "gpf1-5", "gpf1-6", "gpf1-7";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
> +	};
> +};
> +
> +&pinctrl_peri {
> +	gpg0: gpg0 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	gpp0: gpp0 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +	gpp1: gpp1 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	gpp2: gpp2 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	gpg1: gpg1 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	gpg2: gpg2 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	gpg3: gpg3 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	gpc0: gpc0 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +
> +	gpc1: gpc1 {
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};

Please order these nodes by name, so gpcX, gpgX and gppX.

> +
> +	sensor_mclk0_in_pins: sensor-mclk0-in-pins {
> +		samsung,pins = "gpc0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	sensor_mclk0_out_pins: sensor-mclk0-out-pins {
> +		samsung,pins = "gpc0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	sensor_mclk0_fn_pins: sensor-mclk0-fn-pins {
> +		samsung,pins = "gpc0-0";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	sensor_mclk1_in_pins: sensor-mclk1-in-pins {
> +		samsung,pins = "gpc0-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	sensor_mclk1_out_pins: sensor-mclk1-out-pins {
> +		samsung,pins = "gpc0-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	sensor_mclk1_fn_pins: sensor-mclk1-fn-pins {
> +		samsung,pins = "gpc0-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	sensor_mclk2_in_pins: sensor-mclk2-in-pins {
> +		samsung,pins = "gpc0-2";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	sensor_mclk2_out_pins: sensor-mclk2-out-pins {
> +		samsung,pins = "gpc0-2";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	sensor_mclk2_fn_pins: sensor-mclk2-fn-pins {
> +		samsung,pins = "gpc0-2";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
> +	};
> +
> +	/* USI: HSI2C0 */
> +	hsi2c0_pins: hsi2c0-pins {
> +		samsung,pins = "gpc1-0", "gpc1-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	/* USI: HSI2C1 */
> +	hsi2c1_pins: hsi2c1-pins {
> +		samsung,pins = "gpc1-2", "gpc1-3";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	/* USI: HSI2C2 */
> +	hsi2c2_pins: hsi2c2-pins {
> +		samsung,pins = "gpc1-4", "gpc1-5";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	/* USI: SPI */
> +	spi0_pins: spi0-pins {
> +		samsung,pins = "gpp2-0", "gpp2-2", "gpp2-3";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	spi0_cs_pins: spi0-cs-pins {
> +		samsung,pins = "gpp2-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	spi0_cs_func_pins: spi0-cs-func-pins {
> +		samsung,pins = "gpp2-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;

Same question as other SPI.

> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	i2c0_pins: i2c0-pins {
> +		samsung,pins = "gpp0-0", "gpp0-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	i2c1_pins: i2c1-pins {
> +		samsung,pins = "gpp0-2", "gpp0-3";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	i2c2_pins: i2c2-pins {
> +		samsung,pins = "gpp0-4", "gpp0-5";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	i2c3_pins: i2c3-pins {
> +		samsung,pins = "gpp1-0", "gpp1-1";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	i2c4_pins: i2c4-pins {
> +		samsung,pins = "gpp1-2", "gpp1-3";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	xclkout_pins: xclkout-pins {
> +		samsung,pins = "gpq0-2";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +	};
> +};
> diff --git a/arch/arm64/boot/dts/exynos/exynos850.dtsi b/arch/arm64/boot/dts/exynos/exynos850.dtsi
> new file mode 100644
> index 000000000000..1600621f68ba
> --- /dev/null
> +++ b/arch/arm64/boot/dts/exynos/exynos850.dtsi
> @@ -0,0 +1,755 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Samsung Exynos850 SoC device tree source
> + *
> + * Copyright (C) 2018 Samsung Electronics Co., Ltd.
> + * Copyright (C) 2021 Linaro Ltd.
> + *
> + * Samsung Exynos850 SoC device nodes are listed in this file.
> + * Exynos850 based board files can include this file and provide
> + * values for board specific bindings.
> + */
> +
> +#include <dt-bindings/clock/exynos850.h>
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/soc/samsung,exynos-usi.h>
> +
> +/ {
> +	/* Also known under engineering name Exynos3830 */
> +	compatible = "samsung,exynos850";
> +	#address-cells = <2>;
> +	#size-cells = <1>;
> +
> +	interrupt-parent = <&gic>;
> +
> +	aliases {
> +		pinctrl0 = &pinctrl_alive;
> +		pinctrl1 = &pinctrl_cmgp;
> +		pinctrl2 = &pinctrl_aud;
> +		pinctrl3 = &pinctrl_hsi;
> +		pinctrl4 = &pinctrl_core;
> +		pinctrl5 = &pinctrl_peri;
> +		mmc0 = &mmc_0;
> +		usi0 = &usi_uart;
> +		usi1 = &usi_hsi2c_0;
> +		usi2 = &usi_hsi2c_1;
> +		usi3 = &usi_hsi2c_2;
> +		usi4 = &usi_spi_0;
> +		usi5 = &usi_cmgp0;
> +		usi6 = &usi_cmgp1;

What's the use of the USI aliases? The driver does not care about them.

> +		serial0 = &serial_0;
> +		serial1 = &serial_1;
> +		serial2 = &serial_2;
> +		i2c0 = &i2c_0;
> +		i2c1 = &i2c_1;
> +		i2c2 = &i2c_2;
> +		i2c3 = &i2c_3;
> +		i2c4 = &i2c_4;
> +		i2c5 = &i2c_5;
> +		i2c6 = &i2c_6;
> +		i2c7 = &hsi2c_0;
> +		i2c8 = &hsi2c_1;
> +		i2c9 = &hsi2c_2;
> +		i2c10 = &hsi2c_3;
> +		i2c11 = &hsi2c_4;
> +	};
> +
> +	arm-pmu {
> +		compatible = "arm,cortex-a55-pmu";
> +		interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>,
> +				     <&cpu4>, <&cpu5>, <&cpu6>, <&cpu7>;
> +	};
> +
> +	/* Main system clock (XTCXO); external, must be 26 MHz */
> +	oscclk: clock-oscclk {
> +		compatible = "fixed-clock";
> +		clock-output-names = "oscclk";
> +		#clock-cells = <0>;
> +	};
> +
> +	/* RTC clock (XrtcXTI); external, must be 32.768 kHz */

This clock is usually provided by PMIC, so instead I expect updating
s2mps11-clk driver. It's not correct to mock it with fixed-clock, but in
some cases might be needed. Then I would need an explanation and maybe a
TODO note.

I wonder if we already discussed this...

> +	rtcclk: clock-rtcclk {> +		compatible = "fixed-clock";
> +		clock-output-names = "rtcclk";
> +		#clock-cells = <0>;
> +	};
> +
> +	cpus {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		cpu-map {
> +			cluster0 {
> +				core0 {
> +					cpu = <&cpu0>;
> +				};
> +				core1 {
> +					cpu = <&cpu1>;
> +				};
> +				core2 {
> +					cpu = <&cpu2>;
> +				};
> +				core3 {
> +					cpu = <&cpu3>;
> +				};
> +			};
> +
> +			cluster1 {
> +				core0 {
> +					cpu = <&cpu4>;
> +				};
> +				core1 {
> +					cpu = <&cpu5>;
> +				};
> +				core2 {
> +					cpu = <&cpu6>;
> +				};
> +				core3 {
> +					cpu = <&cpu7>;
> +				};
> +			};
> +		};
> +
> +		cpu0: cpu@0 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a55";
> +			reg = <0x0>;
> +			enable-method = "psci";
> +		};
> +		cpu1: cpu@1 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a55";
> +			reg = <0x1>;
> +			enable-method = "psci";
> +		};
> +		cpu2: cpu@2 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a55";
> +			reg = <0x2>;
> +			enable-method = "psci";
> +		};
> +		cpu3: cpu@3 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a55";
> +			reg = <0x3>;
> +			enable-method = "psci";
> +		};
> +		cpu4: cpu@100 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a55";
> +			reg = <0x100>;
> +			enable-method = "psci";
> +		};
> +		cpu5: cpu@101 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a55";
> +			reg = <0x101>;
> +			enable-method = "psci";
> +		};
> +		cpu6: cpu@102 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a55";
> +			reg = <0x102>;
> +			enable-method = "psci";
> +		};
> +		cpu7: cpu@103 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a55";
> +			reg = <0x103>;
> +			enable-method = "psci";
> +		};
> +	};
> +
> +	psci {
> +		compatible = "arm,psci-1.0";
> +		method = "smc";
> +	};
> +
> +	timer {
> +		compatible = "arm,armv8-timer";
> +		/* Hypervisor Virtual Timer interrupt is not wired to GIC */
> +		interrupts =
> +		     <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
> +		     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
> +		     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
> +		     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
> +	};
> +
> +	soc: soc@0 {
> +		compatible = "simple-bus";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges = <0x0 0x0 0x0 0x20000000>;
> +
> +		chipid@10000000 {
> +			compatible = "samsung,exynos850-chipid";
> +			reg = <0x10000000 0x100>;
> +		};
> +
> +		timer@10040000 {
> +			compatible = "samsung,exynos4210-mct";
> +			reg = <0x10040000 0x800>;
> +			interrupts = <GIC_SPI 203 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 204 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 207 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 209 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 210 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 211 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 214 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&oscclk>, <&cmu_peri CLK_GOUT_MCT_PCLK>;
> +			clock-names = "fin_pll", "mct";
> +		};
> +
> +		gic: interrupt-controller@12a01000 {
> +			compatible = "arm,gic-400";
> +			#interrupt-cells = <3>;
> +			#address-cells = <0>;
> +			reg = <0x12a01000 0x1000>,
> +			      <0x12a02000 0x2000>,
> +			      <0x12a04000 0x2000>,
> +			      <0x12a06000 0x2000>;
> +			interrupt-controller;
> +			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(8) |
> +						 IRQ_TYPE_LEVEL_HIGH)>;
> +		};
> +
> +		pmu_system_controller: system-controller@11860000 {
> +			compatible = "samsung,exynos850-pmu", "syscon";
> +			reg = <0x11860000 0x10000>;
> +			clocks = <&cmu_apm CLK_GOUT_PMU_ALIVE_PCLK>;
> +
> +			reboot: syscon-reboot {
> +				compatible = "syscon-reboot";
> +				regmap = <&pmu_system_controller>;
> +				offset = <0x3a00>; /* SYSTEM_CONFIGURATION */
> +				mask = <0x2>; /* SWRESET_SYSTEM */
> +				value = <0x2>; /* reset value */
> +			};
> +		};
> +
> +		watchdog_cl0: watchdog@10050000 {
> +			compatible = "samsung,exynos850-wdt";
> +			reg = <0x10050000 0x100>;
> +			interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&cmu_peri CLK_GOUT_WDT0_PCLK>, <&oscclk>;
> +			clock-names = "watchdog", "watchdog_src";
> +			samsung,syscon-phandle = <&pmu_system_controller>;
> +			samsung,cluster-index = <0>;
> +			status = "disabled";
> +		};
> +
> +		watchdog_cl1: watchdog@10060000 {
> +			compatible = "samsung,exynos850-wdt";
> +			reg = <0x10060000 0x100>;
> +			interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&cmu_peri CLK_GOUT_WDT1_PCLK>, <&oscclk>;
> +			clock-names = "watchdog", "watchdog_src";
> +			samsung,syscon-phandle = <&pmu_system_controller>;
> +			samsung,cluster-index = <1>;
> +			status = "disabled";
> +		};
> +
> +		cmu_top: clock-controller@120e0000 {
> +			compatible = "samsung,exynos850-cmu-top";
> +			reg = <0x120e0000 0x8000>;
> +			#clock-cells = <1>;
> +
> +			clocks = <&oscclk>;
> +			clock-names = "oscclk";
> +		};
> +
> +		cmu_apm: clock-controller@11800000 {
> +			compatible = "samsung,exynos850-cmu-apm";
> +			reg = <0x11800000 0x8000>;
> +			#clock-cells = <1>;
> +
> +			clocks = <&oscclk>, <&cmu_top CLK_DOUT_CLKCMU_APM_BUS>;
> +			clock-names = "oscclk", "dout_clkcmu_apm_bus";
> +		};
> +
> +		cmu_cmgp: clock-controller@11c00000 {
> +			compatible = "samsung,exynos850-cmu-cmgp";
> +			reg = <0x11c00000 0x8000>;
> +			#clock-cells = <1>;
> +
> +			clocks = <&oscclk>, <&cmu_apm CLK_GOUT_CLKCMU_CMGP_BUS>;
> +			clock-names = "oscclk", "gout_clkcmu_cmgp_bus";
> +		};
> +
> +		cmu_core: clock-controller@12000000 {
> +			compatible = "samsung,exynos850-cmu-core";
> +			reg = <0x12000000 0x8000>;
> +			#clock-cells = <1>;
> +
> +			clocks = <&oscclk>, <&cmu_top CLK_DOUT_CORE_BUS>,
> +				 <&cmu_top CLK_DOUT_CORE_CCI>,
> +				 <&cmu_top CLK_DOUT_CORE_MMC_EMBD>,
> +				 <&cmu_top CLK_DOUT_CORE_SSS>;
> +			clock-names = "oscclk", "dout_core_bus",
> +				      "dout_core_cci", "dout_core_mmc_embd",
> +				      "dout_core_sss";
> +		};
> +
> +		cmu_dpu: clock-controller@13000000 {
> +			compatible = "samsung,exynos850-cmu-dpu";
> +			reg = <0x13000000 0x8000>;
> +			#clock-cells = <1>;
> +
> +			clocks = <&oscclk>, <&cmu_top CLK_DOUT_DPU>;
> +			clock-names = "oscclk", "dout_dpu";
> +		};
> +
> +		cmu_hsi: clock-controller@13400000 {
> +			compatible = "samsung,exynos850-cmu-hsi";
> +			reg = <0x13400000 0x8000>;
> +			#clock-cells = <1>;
> +
> +			clocks = <&oscclk>, <&rtcclk>,
> +				 <&cmu_top CLK_DOUT_HSI_BUS>,
> +				 <&cmu_top CLK_DOUT_HSI_MMC_CARD>,
> +				 <&cmu_top CLK_DOUT_HSI_USB20DRD>;
> +			clock-names = "oscclk", "rtcclk", "dout_hsi_bus",
> +				      "dout_hsi_mmc_card", "dout_hsi_usb20drd";
> +		};
> +
> +		cmu_peri: clock-controller@10030000 {
> +			compatible = "samsung,exynos850-cmu-peri";
> +			reg = <0x10030000 0x8000>;
> +			#clock-cells = <1>;
> +
> +			clocks = <&oscclk>, <&cmu_top CLK_DOUT_PERI_BUS>,
> +				 <&cmu_top CLK_DOUT_PERI_UART>,
> +				 <&cmu_top CLK_DOUT_PERI_IP>;
> +			clock-names = "oscclk", "dout_peri_bus",
> +				      "dout_peri_uart", "dout_peri_ip";
> +		};

Please order all CMUs against each other by unit address. The same for
pinctrl nodes below. Similar discussion as we had for Exynos7885 -
hierarchical ordering is subjective and not always obvious.

> +
> +		pinctrl_alive: pinctrl@11850000 {
> +			compatible = "samsung,exynos850-pinctrl";
> +			reg = <0x11850000 0x1000>;
> +			interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
> +
> +			wakeup-interrupt-controller {
> +				compatible = "samsung,exynos7-wakeup-eint";
> +			};
> +		};
> +
> +		pinctrl_cmgp: pinctrl@11c30000 {
> +			compatible = "samsung,exynos850-pinctrl";
> +			reg = <0x11c30000 0x1000>;
> +			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
> +
> +			wakeup-interrupt-controller {
> +				compatible = "samsung,exynos7-wakeup-eint";
> +			};
> +		};

Best regards,
Krzysztof