drivers/mtd/devices/serial_flash_cmds.h

File Facts

System

Linux kernel

Corpus path

drivers/mtd/devices/serial_flash_cmds.h

Extension

.h

Size

1684 bytes

Lines

50

Domain

Driver Families

Bucket

drivers/mtd

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

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

#ifndef _MTD_SERIAL_FLASH_CMDS_H
#define _MTD_SERIAL_FLASH_CMDS_H

/* Generic Flash Commands/OPCODEs */
#define SPINOR_OP_WRVCR		0x81
#define SPINOR_OP_RDVCR		0x85

/* JEDEC Standard - Serial Flash Discoverable Parmeters (SFDP) Commands */
#define SPINOR_OP_WRITE		0x02	/* PAGE PROGRAM */
#define SPINOR_OP_WRITE_1_1_2	0xa2	/* DUAL INPUT PROGRAM */
#define SPINOR_OP_WRITE_1_2_2	0xd2	/* DUAL INPUT EXT PROGRAM */
#define SPINOR_OP_WRITE_1_1_4	0x32	/* QUAD INPUT PROGRAM */
#define SPINOR_OP_WRITE_1_4_4	0x12	/* QUAD INPUT EXT PROGRAM */

/* Configuration flags */
#define FLASH_FLAG_SINGLE	0x000000ff
#define FLASH_FLAG_READ_WRITE	0x00000001
#define FLASH_FLAG_READ_FAST	0x00000002
#define FLASH_FLAG_SE_4K	0x00000004
#define FLASH_FLAG_SE_32K	0x00000008
#define FLASH_FLAG_CE		0x00000010
#define FLASH_FLAG_32BIT_ADDR	0x00000020
#define FLASH_FLAG_RESET	0x00000040
#define FLASH_FLAG_DYB_LOCKING	0x00000080

#define FLASH_FLAG_DUAL		0x0000ff00
#define FLASH_FLAG_READ_1_1_2	0x00000100
#define FLASH_FLAG_READ_1_2_2	0x00000200
#define FLASH_FLAG_READ_2_2_2	0x00000400
#define FLASH_FLAG_WRITE_1_1_2	0x00001000
#define FLASH_FLAG_WRITE_1_2_2	0x00002000
#define FLASH_FLAG_WRITE_2_2_2	0x00004000

#define FLASH_FLAG_QUAD		0x00ff0000
#define FLASH_FLAG_READ_1_1_4	0x00010000
#define FLASH_FLAG_READ_1_4_4	0x00020000
#define FLASH_FLAG_READ_4_4_4	0x00040000
#define FLASH_FLAG_WRITE_1_1_4	0x00100000
#define FLASH_FLAG_WRITE_1_4_4	0x00200000
#define FLASH_FLAG_WRITE_4_4_4	0x00400000

#endif /* _MTD_SERIAL_FLASH_CMDS_H */

Annotation

• Atlas domain: Driver Families / drivers/mtd.
• Implementation status: source implementation candidate.

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.