arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi- Extension
.dtsi- Size
- 14513 bytes
- Lines
- 678
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
purwa.dtsihamoa-pmics.dtsidt-bindings/gpio/gpio.hdt-bindings/regulator/qcom,rpmh-regulator.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: BSD-3-Clause
/*
* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/
#include "purwa.dtsi"
#include "hamoa-pmics.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
/delete-node/ &pmc8380_6;
/delete-node/ &pmc8380_6_thermal;
/ {
reserved-memory {
linux,cma {
compatible = "shared-dma-pool";
size = <0x0 0x8000000>;
reusable;
linux,cma-default;
};
};
};
&apps_rsc {
/* PMC8380C_B */
regulators-0 {
compatible = "qcom,pm8550-rpmh-regulators";
qcom,pmic-id = "b";
vdd-bob1-supply = <&vph_pwr>;
vdd-bob2-supply = <&vph_pwr>;
vdd-l1-l4-l10-supply = <&vreg_s4c_1p8>;
vdd-l2-l13-l14-supply = <&vreg_bob1>;
vdd-l5-l16-supply = <&vreg_bob1>;
vdd-l6-l7-supply = <&vreg_bob2>;
vdd-l8-l9-supply = <&vreg_bob1>;
vdd-l12-supply = <&vreg_s5j_1p2>;
vdd-l15-supply = <&vreg_s4c_1p8>;
vdd-l17-supply = <&vreg_bob2>;
vreg_bob1: bob1 {
regulator-name = "vreg_bob1";
regulator-min-microvolt = <3008000>;
regulator-max-microvolt = <3960000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_bob2: bob2 {
regulator-name = "vreg_bob2";
regulator-min-microvolt = <2504000>;
regulator-max-microvolt = <3008000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l1b_1p8: ldo1 {
regulator-name = "vreg_l1b_1p8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l2b_3p0: ldo2 {
regulator-name = "vreg_l2b_3p0";
regulator-min-microvolt = <3072000>;
regulator-max-microvolt = <3100000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l4b_1p8: ldo4 {
Annotation
- Immediate include surface: `purwa.dtsi`, `hamoa-pmics.dtsi`, `dt-bindings/gpio/gpio.h`, `dt-bindings/regulator/qcom,rpmh-regulator.h`.
- Atlas domain: Architecture Layer / arch/arm64.
- 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.