arch/arm/boot/dts/microchip/at91-sama5d27_som1_ek.dts
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-sama5d27_som1_ek.dts
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/microchip/at91-sama5d27_som1_ek.dts- Extension
.dts- Size
- 12664 bytes
- Lines
- 552
- 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
at91-sama5d27_som1.dtsidt-bindings/mfd/atmel-flexcom.hdt-bindings/gpio/gpio.hdt-bindings/input/input.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_som1_ek.dts - Device Tree file for SAMA5D27-SOM1-EK board
*
* Copyright (c) 2017, Microchip Technology Inc.
* 2016 Nicolas Ferre <nicolas.ferre@atmel.com>
* 2017 Cristian Birsan <cristian.birsan@microchip.com>
* 2017 Claudiu Beznea <claudiu.beznea@microchip.com>
*/
/dts-v1/;
#include "at91-sama5d27_som1.dtsi"
#include <dt-bindings/mfd/atmel-flexcom.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
model = "Atmel SAMA5D27 SOM1 EK";
compatible = "atmel,sama5d27-som1-ek", "atmel,sama5d27-som1", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5";
aliases {
serial0 = &uart1; /* DBGU */
serial1 = &uart4; /* mikro BUS 1 */
serial2 = &uart2; /* mikro BUS 2 */
i2c1 = &i2c1;
i2c2 = &i2c3;
};
chosen {
stdout-path = "serial0:115200n8";
};
ahb {
usb0: gadget@300000 {
atmel,vbus-gpio = <&pioA PIN_PD20 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usba_vbus>;
status = "okay";
};
usb1: usb@400000 {
num-ports = <3>;
atmel,vbus-gpio = <0 /* &pioA PIN_PD20 GPIO_ACTIVE_HIGH */
&pioA PIN_PA27 GPIO_ACTIVE_HIGH
0
>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usb_default>;
status = "okay";
};
usb2: usb@500000 {
status = "okay";
};
sdmmc0: sdio-host@a0000000 {
bus-width = <8>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc0_default>;
status = "okay";
};
sdmmc1: sdio-host@b0000000 {
bus-width = <4>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc1_default>;
status = "okay";
};
apb {
isc: isc@f0008000 {
Annotation
- Immediate include surface: `at91-sama5d27_som1.dtsi`, `dt-bindings/mfd/atmel-flexcom.h`, `dt-bindings/gpio/gpio.h`, `dt-bindings/input/input.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.