arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi- Extension
.dtsi- Size
- 17706 bytes
- Lines
- 567
- Domain
- Architecture Layer
- Bucket
- arch/arm64
- 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
dt-bindings/clock/imx8-lpcg.hdt-bindings/dma/fsl-edma.hdt-bindings/firmware/imx/rsrc.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+
/*
* Copyright 2018-2019 NXP
* Dong Aisheng <aisheng.dong@nxp.com>
*/
#include <dt-bindings/clock/imx8-lpcg.h>
#include <dt-bindings/dma/fsl-edma.h>
#include <dt-bindings/firmware/imx/rsrc.h>
dma_ipg_clk: clock-dma-ipg {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <120000000>;
clock-output-names = "dma_ipg_clk";
};
dma_subsys: bus@5a000000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x5a000000 0x0 0x5a000000 0x1000000>;
lpspi0: spi@5a000000 {
compatible = "fsl,imx7ulp-spi";
reg = <0x5a000000 0x10000>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <GIC_SPI 336 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&gic>;
clocks = <&spi0_lpcg IMX_LPCG_CLK_0>,
<&spi0_lpcg IMX_LPCG_CLK_4>;
clock-names = "per", "ipg";
assigned-clocks = <&clk IMX_SC_R_SPI_0 IMX_SC_PM_CLK_PER>;
assigned-clock-rates = <60000000>;
power-domains = <&pd IMX_SC_R_SPI_0>;
dmas = <&edma2 1 0 0>, <&edma2 0 0 FSL_EDMA_RX>;
dma-names = "tx", "rx";
status = "disabled";
};
lpspi1: spi@5a010000 {
compatible = "fsl,imx7ulp-spi";
reg = <0x5a010000 0x10000>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <GIC_SPI 337 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&gic>;
clocks = <&spi1_lpcg IMX_LPCG_CLK_0>,
<&spi1_lpcg IMX_LPCG_CLK_4>;
clock-names = "per", "ipg";
assigned-clocks = <&clk IMX_SC_R_SPI_1 IMX_SC_PM_CLK_PER>;
assigned-clock-rates = <60000000>;
power-domains = <&pd IMX_SC_R_SPI_1>;
dmas = <&edma2 3 0 0>, <&edma2 2 0 FSL_EDMA_RX>;
dma-names = "tx", "rx";
status = "disabled";
};
lpspi2: spi@5a020000 {
compatible = "fsl,imx7ulp-spi";
reg = <0x5a020000 0x10000>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <GIC_SPI 338 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&gic>;
clocks = <&spi2_lpcg IMX_LPCG_CLK_0>,
<&spi2_lpcg IMX_LPCG_CLK_4>;
clock-names = "per", "ipg";
assigned-clocks = <&clk IMX_SC_R_SPI_2 IMX_SC_PM_CLK_PER>;
Annotation
- Immediate include surface: `dt-bindings/clock/imx8-lpcg.h`, `dt-bindings/dma/fsl-edma.h`, `dt-bindings/firmware/imx/rsrc.h`.
- Atlas domain: Architecture Layer / arch/arm64.
- 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.