arch/arm/boot/dts/renesas/r8a7743-iwg20m.dtsi
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/r8a7743-iwg20m.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/renesas/r8a7743-iwg20m.dtsi- Extension
.dtsi- Size
- 1738 bytes
- Lines
- 96
- Domain
- Architecture Layer
- Bucket
- arch/arm
- 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
r8a7743.dtsidt-bindings/gpio/gpio.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
/*
* Device Tree Source for the iWave-RZG1M-20M Qseven SOM
*
* Copyright (C) 2017 Renesas Electronics Corp.
*/
#include "r8a7743.dtsi"
#include <dt-bindings/gpio/gpio.h>
/ {
compatible = "iwave,g20m", "renesas,r8a7743";
memory@40000000 {
device_type = "memory";
reg = <0 0x40000000 0 0x20000000>;
};
memory@200000000 {
device_type = "memory";
reg = <2 0x00000000 0 0x20000000>;
};
reg_3p3v: 3p3v {
compatible = "regulator-fixed";
regulator-name = "3P3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-boot-on;
};
};
&extal_clk {
clock-frequency = <20000000>;
};
&pfc {
mmcif0_pins: mmc {
groups = "mmc_data8_b", "mmc_ctrl";
function = "mmc";
};
qspi_pins: qspi {
groups = "qspi_ctrl", "qspi_data2";
function = "qspi";
};
sdhi0_pins: sd0 {
groups = "sdhi0_data4", "sdhi0_ctrl";
function = "sdhi0";
power-source = <3300>;
};
};
&mmcif0 {
pinctrl-0 = <&mmcif0_pins>;
pinctrl-names = "default";
vmmc-supply = <®_3p3v>;
bus-width = <8>;
non-removable;
status = "okay";
};
&qspi {
pinctrl-0 = <&qspi_pins>;
pinctrl-names = "default";
status = "okay";
Annotation
- Immediate include surface: `r8a7743.dtsi`, `dt-bindings/gpio/gpio.h`.
- Atlas domain: Architecture Layer / arch/arm.
- 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.