arch/arm64/boot/dts/st/stm32mp233.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/st/stm32mp233.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/st/stm32mp233.dtsi
Extension
.dtsi
Size
2267 bytes
Lines
95
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
/*
 * Copyright (C) STMicroelectronics 2025 - All Rights Reserved
 * Author: Alexandre Torgue <alexandre.torgue@foss.st.com> for STMicroelectronics.
 */
#include "stm32mp231.dtsi"

/ {
	cpus {
		cpu1: cpu@1 {
			compatible = "arm,cortex-a35";
			reg = <1>;
			device_type = "cpu";
			enable-method = "psci";
			power-domains = <&cpu1_pd>;
			power-domain-names = "psci";
		};
	};

	arm-pmu {
		interrupts = <GIC_SPI 368 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 369 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-affinity = <&cpu0>, <&cpu1>;
	};

	psci {
		cpu1_pd: power-domain-cpu1 {
			#power-domain-cells = <0>;
			power-domains = <&cluster_pd>;
		};
	};

	timer {
		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
	};
};

&optee {
	interrupts = <GIC_PPI 15 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
};

&rifsc {
	ethernet2: ethernet@482d0000 {
		compatible = "st,stm32mp25-dwmac", "snps,dwmac-5.20";
		reg = <0x482d0000 0x4000>;
		reg-names = "stmmaceth";
		interrupts-extended = <&intc GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-names = "macirq";
		clock-names = "stmmaceth",
			      "mac-clk-tx",
			      "mac-clk-rx",
			      "ptp_ref",
			      "ethstp",
			      "eth-ck";
		clocks = <&rcc CK_ETH2_MAC>,
			 <&rcc CK_ETH2_TX>,
			 <&rcc CK_ETH2_RX>,
			 <&rcc CK_KER_ETH2PTP>,
			 <&rcc CK_ETH2_STP>,
			 <&rcc CK_KER_ETH2>;
		snps,axi-config = <&stmmac_axi_config_2>;
		snps,mixed-burst;
		snps,mtl-rx-config = <&mtl_rx_setup_2>;
		snps,mtl-tx-config = <&mtl_tx_setup_2>;
		snps,pbl = <2>;
		snps,tso;
		st,syscon = <&syscfg 0x3400>;

Annotation

Implementation Notes