Re: [PATCH v1 6/7] arm64: dts: exynos: Add initial support for the Exynos 990 SoC

[Krzysztof Kozlowski <krzk@kernel.org>]

On 15/10/2024 08:27, Igor Belwon wrote:
> The Exynos 990 SoC is an ARMv8 mobile SoC found in Samsung Galaxy N/S20
> series phones (x1sxxx, c1sxxx). Add minimal support for this SoC,
> including:
> 

...

> +	/* There's no PMU model for cluster2, which are the Mongoose cores. */
> +
> +	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>;
> +				};
> +			};
> +
> +			cluster2 {
> +				core0 {
> +					cpu = <&cpu6>;
> +				};
> +
> +				core1 {
> +					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-a76";
> +			reg = <0x4>;
> +			enable-method = "psci";
> +		};
> +
> +		cpu5: cpu@101 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a76";
> +			reg = <0x5>;
> +			enable-method = "psci";
> +		};
> +
> +		cpu6: cpu@200 {
> +			device_type = "cpu";
> +			compatible = "samsung,mongoose-m5";
> +			reg = <0x6>;
> +			enable-method = "psci";
> +		};
> +
> +		cpu7: cpu@201 {
> +			device_type = "cpu";
> +			compatible = "samsung,mongoose-m5";
> +			reg = <0x7>;
> +			enable-method = "psci";
> +		};
> +

Stray blank line

> +	};
> +
> +	psci {
> +		compatible = "arm,psci-0.2";
> +		method = "hvc";
> +	};
> +
> +	oscclk: osc-clock {

clock-osc and keep order by node name

> +		compatible = "fixed-clock";
> +		#clock-cells = <0>;
> +		clock-output-names = "oscclk";
> +	};
> +
> +	soc: soc@0 {
> +		compatible = "simple-bus";
> +		ranges = <0x0 0x0 0x0 0x20000000>;
> +
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +
> +		chipid@10000000 {
> +			compatible = "samsung,exynos990-chipid",
> +				     "samsung,exynos850-chipid";
> +			reg = <0x10000000 0x100>;
> +		};
> +
> +		gic: interrupt-controller@10101000 {
> +			compatible = "arm,gic-400";
> +			#interrupt-cells = <3>;
> +			interrupt-controller;
> +			reg = <0x10101000 0x1000>,
> +			      <0x10102000 0x1000>,
> +			      <0x10104000 0x2000>,
> +			      <0x10106000 0x2000>;

reg is the second property

> +			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(8) |
> +						 IRQ_TYPE_LEVEL_HIGH)>;
> +			#address-cells = <0>;
> +			#size-cells = <1>;
> +		};
> +
> +		pinctrl_cmgp: pinctrl@15c30000 {

Keep order by unit address.

> +			compatible = "samsung,exynos990-pinctrl";
> +			reg = <0x15c30000 0x1000>;
> +		};
> +
> +		pinctrl_hsi1: pinctrl@13040000 {
> +			compatible = "samsung,exynos990-pinctrl";
> +			reg = <0x13040000 0x1000>;
> +			interrupts = <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>;
> +		};
> +
> +		pinctrl_hsi2: pinctrl@13c30000 {
> +			compatible = "samsung,exynos990-pinctrl";
> +			reg = <0x13c30000 0x1000>;
> +			interrupts = <GIC_SPI 322 IRQ_TYPE_LEVEL_HIGH>;
> +		};
> +
> +		pinctrl_peric0: pinctrl@10430000 {
> +			compatible = "samsung,exynos990-pinctrl";
> +			reg = <0x10430000 0x1000>;
> +			interrupts = <GIC_SPI 392 IRQ_TYPE_LEVEL_HIGH>;
> +		};
> +
> +		pinctrl_peric1: pinctrl@10730000 {
> +			compatible = "samsung,exynos990-pinctrl";
> +			reg = <0x10730000 0x1000>;
> +			interrupts = <GIC_SPI 417 IRQ_TYPE_LEVEL_HIGH>;
> +		};
> +
> +		pinctrl_vts: pinctrl@15580000 {
> +			compatible = "samsung,exynos990-pinctrl";
> +			reg = <0x15580000 0x1000>;
> +		};
> +
> +		pinctrl_alive: pinctrl@15850000 {
> +			compatible = "samsung,exynos990-pinctrl";
> +			reg = <0x15850000 0x1000>;
> +
> +			wakeup-interrupt-controller {
> +				compatible = "samsung,exynos990-wakeup-eint",
> +					     "samsung,exynos7-wakeup-eint";
> +			};
> +		};
> +	};
> +
> +	timer {
> +		compatible = "arm,armv8-timer";
> +		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)>;
> +
> +		/*
> +		 * Non-updatable, broken stock Samsung bootloader does not
> +		 * configure CNTFRQ_EL0
> +		 */
> +		clock-frequency = <26000000>;
> +	};
> +};
> +
> +#include "exynos990-pinctrl.dtsi"

Best regards,
Krzysztof