arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi- Extension
.dtsi- Size
- 3220 bytes
- Lines
- 170
- 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
at91sam9x5cm.dtsi
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-later
/*
* at91sam9x5ek.dtsi - Device Tree file for AT91SAM9x5CM Base board
*
* Copyright (C) 2012 Atmel,
* 2012 Nicolas Ferre <nicolas.ferre@atmel.com>
*/
#include "at91sam9x5cm.dtsi"
/ {
model = "Atmel AT91SAM9X5-EK";
compatible = "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
chosen {
bootargs = "root=/dev/mtdblock1 rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs";
stdout-path = "serial0:115200n8";
};
sound {
compatible = "atmel,sam9x5-wm8731-audio";
atmel,model = "wm8731 @ AT91SAM9X5EK";
atmel,audio-routing =
"Headphone Jack", "RHPOUT",
"Headphone Jack", "LHPOUT",
"LLINEIN", "Line In Jack",
"RLINEIN", "Line In Jack";
atmel,ssc-controller = <&ssc0>;
atmel,audio-codec = <&wm8731>;
};
};
&adc0 {
atmel,adc-ts-wires = <4>;
atmel,adc-ts-pressure-threshold = <10000>;
status = "okay";
};
&dbgu {
atmel,use-dma-rx;
atmel,use-dma-tx;
status = "okay";
};
&i2c0 {
status = "okay";
wm8731: wm8731@1a {
compatible = "wm8731";
reg = <0x1a>;
};
};
&mmc0 {
pinctrl-0 = <
&pinctrl_board_mmc0
&pinctrl_mmc0_slot0_clk_cmd_dat0
&pinctrl_mmc0_slot0_dat1_3>;
pinctrl-names = "default";
status = "okay";
slot@0 {
reg = <0>;
bus-width = <4>;
cd-gpios = <&pioD 15 GPIO_ACTIVE_HIGH>;
};
};
Annotation
- Immediate include surface: `at91sam9x5cm.dtsi`.
- 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.