arch/arm/boot/dts/nxp/ls/ls1021a-tsn.dts
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nxp/ls/ls1021a-tsn.dts
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/nxp/ls/ls1021a-tsn.dts- Extension
.dts- Size
- 5033 bytes
- Lines
- 294
- 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
ls1021a.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
/* Copyright 2016-2018 NXP Semiconductors
* Copyright 2019 Vladimir Oltean <olteanv@gmail.com>
*/
/dts-v1/;
#include "ls1021a.dtsi"
/ {
model = "NXP LS1021A-TSN Board";
compatible = "fsl,ls1021a-tsn", "fsl,ls1021a";
sys_mclk: clock-mclk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <24576000>;
};
reg_vdda_codec: regulator-3V3 {
compatible = "regulator-fixed";
regulator-name = "3P3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
reg_vddio_codec: regulator-2V5 {
compatible = "regulator-fixed";
regulator-name = "2P5V";
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <2500000>;
regulator-always-on;
};
};
&dspi0 {
bus-num = <0>;
status = "okay";
/* ADG704BRMZ 1:4 SPI mux/demux */
sja1105: ethernet-switch@1 {
reg = <0x1>;
compatible = "nxp,sja1105t";
/* 12 MHz */
spi-max-frequency = <12000000>;
/* Sample data on trailing clock edge */
spi-cpha;
/* SPI controller settings for SJA1105 timing requirements */
fsl,spi-cs-sck-delay = <1000>;
fsl,spi-sck-cs-delay = <1000>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
/* ETH5 written on chassis */
label = "swp5";
phy-handle = <&rgmii_phy6>;
phy-mode = "rgmii-id";
reg = <0>;
};
port@1 {
/* ETH2 written on chassis */
label = "swp2";
phy-handle = <&rgmii_phy3>;
phy-mode = "rgmii-id";
reg = <1>;
};
Annotation
- Immediate include surface: `ls1021a.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.