arch/riscv/boot/dts/microchip/pic64gx.dtsi
Source file repositories/reference/linux-study-clean/arch/riscv/boot/dts/microchip/pic64gx.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/riscv/boot/dts/microchip/pic64gx.dtsi- Extension
.dtsi- Size
- 17543 bytes
- Lines
- 657
- Domain
- Architecture Layer
- Bucket
- arch/riscv
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
dt-bindings/clock/microchip,mpfs-clock.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Device Tree Source for the PIC64GX SoCs
*
* Copyright (C) 2024 Microchip Technology Inc. and its subsidiaries
*
* Author: Pierre-Henry Moussay <pierre-henry.moussay@microchip.com>
*
* PIC64GX is a series RISC-V multicore SoCs:
* https://www.microchip.com/en-us/products/microprocessors/64-bit-mpus/pic64gx
*/
/dts-v1/;
#include "dt-bindings/clock/microchip,mpfs-clock.h"
/ {
#address-cells = <2>;
#size-cells = <2>;
model = "Microchip PIC64GX SoC";
compatible = "microchip,pic64gx";
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu0: cpu@0 {
compatible = "sifive,e51", "sifive,rocket0", "riscv";
device_type = "cpu";
i-cache-block-size = <64>;
i-cache-sets = <128>;
i-cache-size = <16384>;
reg = <0>;
riscv,isa = "rv64imac";
riscv,isa-base = "rv64i";
riscv,isa-extensions = "i", "m", "a", "c", "zicntr", "zicsr",
"zifencei", "zihpm";
clocks = <&clkcfg CLK_CPU>;
status = "disabled";
cpu0_intc: interrupt-controller {
#interrupt-cells = <1>;
compatible = "riscv,cpu-intc";
interrupt-controller;
};
};
cpu1: cpu@1 {
compatible = "sifive,u54-mc", "sifive,rocket0", "riscv";
d-cache-block-size = <64>;
d-cache-sets = <64>;
d-cache-size = <32768>;
d-tlb-sets = <1>;
d-tlb-size = <32>;
device_type = "cpu";
i-cache-block-size = <64>;
i-cache-sets = <64>;
i-cache-size = <32768>;
i-tlb-sets = <1>;
i-tlb-size = <32>;
mmu-type = "riscv,sv39";
reg = <1>;
riscv,isa = "rv64imafdc";
riscv,isa-base = "rv64i";
riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "zicntr",
"zicsr", "zifencei", "zihpm";
clocks = <&clkcfg CLK_CPU>;
tlb-split;
next-level-cache = <&cctrllr>;
status = "okay";
Annotation
- Immediate include surface: `dt-bindings/clock/microchip,mpfs-clock.h`.
- Atlas domain: Architecture Layer / arch/riscv.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.