arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1.dtsi
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1.dtsi- Extension
.dtsi- Size
- 8482 bytes
- Lines
- 400
- 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
sama5d2.dtsisama5d2-pinfunc.hdt-bindings/gpio/gpio.hdt-bindings/mfd/atmel-flexcom.hdt-bindings/pinctrl/at91.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)
/*
* at91-sama5d27_wlsom1.dtsi - Device Tree file for SAMA5D27 WLSOM1
*
* Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries
*
* Author: Nicolas Ferre <nicolas.ferre@microcihp.com>
* Author: Eugen Hristev <eugen.hristev@microcihp.com>
*/
#include "sama5d2.dtsi"
#include "sama5d2-pinfunc.h"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/mfd/atmel-flexcom.h>
#include <dt-bindings/pinctrl/at91.h>
/ {
model = "Microchip SAMA5D27 WLSOM1";
compatible = "microchip,sama5d27-wlsom1", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5";
aliases {
i2c0 = &i2c0;
};
clocks {
slow_xtal {
clock-frequency = <32768>;
};
main_xtal {
clock-frequency = <24000000>;
};
};
reg_5v: regulator-5v {
compatible = "regulator-fixed";
regulator-name = "VDD_MAIN";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
};
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-wilc1000";
reset-gpios = <&pioA PIN_PA27 GPIO_ACTIVE_HIGH>;
powerdown-gpios = <&pioA PIN_PA29 GPIO_ACTIVE_HIGH>;
pinctrl-0 = <&pinctrl_wilc_pwrseq>;
pinctrl-names = "default";
};
};
&flx1 {
atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
uart6: serial@200 {
pinctrl-0 = <&pinctrl_flx1_default>;
pinctrl-names = "default";
};
};
&i2c0 {
pinctrl-0 = <&pinctrl_i2c0_default>;
pinctrl-1 = <&pinctrl_i2c0_gpio>;
pinctrl-names = "default", "gpio";
sda-gpios = <&pioA PIN_PD21 GPIO_ACTIVE_HIGH>;
scl-gpios = <&pioA PIN_PD22 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
status = "okay";
};
&i2c1 {
dmas = <0>, <0>;
Annotation
- Immediate include surface: `sama5d2.dtsi`, `sama5d2-pinfunc.h`, `dt-bindings/gpio/gpio.h`, `dt-bindings/mfd/atmel-flexcom.h`, `dt-bindings/pinctrl/at91.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.