arch/arm/boot/dts/ti/omap/omap-gpmc-smsc911x.dtsi
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/omap/omap-gpmc-smsc911x.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/ti/omap/omap-gpmc-smsc911x.dtsi- Extension
.dtsi- Size
- 1333 bytes
- Lines
- 56
- 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
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
/*
* Common file for GPMC connected smsc911x on omaps
*
* Note that the board specifc DTS file needs to specify
* ranges, pinctrl, reg, interrupt parent and interrupts.
*/
/ {
vddvario: regulator-vddvario {
compatible = "regulator-fixed";
regulator-name = "vddvario";
regulator-always-on;
};
vdd33a: regulator-vdd33a {
compatible = "regulator-fixed";
regulator-name = "vdd33a";
regulator-always-on;
};
};
&gpmc {
ethernet@gpmc {
compatible = "smsc,lan9221", "smsc,lan9115";
bank-width = <2>;
gpmc,device-width = <1>;
gpmc,cycle2cycle-samecsen;
gpmc,cycle2cycle-diffcsen;
gpmc,cs-on-ns = <5>;
gpmc,cs-rd-off-ns = <150>;
gpmc,cs-wr-off-ns = <150>;
gpmc,adv-on-ns = <0>;
gpmc,adv-rd-off-ns = <15>;
gpmc,adv-wr-off-ns = <40>;
gpmc,oe-on-ns = <45>;
gpmc,oe-off-ns = <140>;
gpmc,we-on-ns = <45>;
gpmc,we-off-ns = <140>;
gpmc,rd-cycle-ns = <155>;
gpmc,wr-cycle-ns = <155>;
gpmc,access-ns = <120>;
gpmc,page-burst-access-ns = <20>;
gpmc,bus-turnaround-ns = <75>;
gpmc,cycle2cycle-delay-ns = <75>;
gpmc,wait-monitoring-ns = <0>;
gpmc,clk-activation-ns = <0>;
gpmc,wr-data-mux-bus-ns = <0>;
gpmc,wr-access-ns = <0>;
vddvario-supply = <&vddvario>;
vdd33a-supply = <&vdd33a>;
reg-io-width = <4>;
smsc,save-mac-address;
};
};
Annotation
- 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.