arch/arm/boot/dts/microchip/at91-sama5d2_xplained.dts
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-sama5d2_xplained.dts
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/microchip/at91-sama5d2_xplained.dts- Extension
.dts- Size
- 18244 bytes
- Lines
- 746
- 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/mfd/atmel-flexcom.hdt-bindings/gpio/gpio.hdt-bindings/input/input.hdt-bindings/regulator/active-semi,8945a-regulator.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-sama5d2_xplained.dts - Device Tree file for SAMA5D2 Xplained board
*
* Copyright (C) 2015 Atmel,
* 2015 Nicolas Ferre <nicolas.ferre@atmel.com>
*/
/dts-v1/;
#include "sama5d2.dtsi"
#include "sama5d2-pinfunc.h"
#include <dt-bindings/mfd/atmel-flexcom.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/regulator/active-semi,8945a-regulator.h>
/ {
model = "Atmel SAMA5D2 Xplained";
compatible = "atmel,sama5d2-xplained", "atmel,sama5d2", "atmel,sama5";
aliases {
serial0 = &uart1; /* DBGU */
i2c0 = &i2c0;
i2c1 = &i2c1;
i2c2 = &i2c2; /* XPRO EXT2 */
};
chosen {
stdout-path = "serial0:115200n8";
};
clocks {
slow_xtal {
clock-frequency = <32768>;
};
main_xtal {
clock-frequency = <12000000>;
};
};
ahb {
usb0: gadget@300000 {
atmel,vbus-gpio = <&pioA PIN_PA31 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_PB9 GPIO_ACTIVE_HIGH */
&pioA PIN_PB10 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>;
non-removable;
mmc-ddr-3_3v;
status = "okay";
Annotation
- Immediate include surface: `sama5d2.dtsi`, `sama5d2-pinfunc.h`, `dt-bindings/mfd/atmel-flexcom.h`, `dt-bindings/gpio/gpio.h`, `dt-bindings/input/input.h`, `dt-bindings/regulator/active-semi,8945a-regulator.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.