include/linux/mtd/onfi.h

Source file repositories/reference/linux-study-clean/include/linux/mtd/onfi.h

File Facts

System
Linux kernel
Corpus path
include/linux/mtd/onfi.h
Extension
.h
Size
4999 bytes
Lines
191
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct nand_onfi_params {
	/* rev info and features block */
	/* 'O' 'N' 'F' 'I'  */
	u8 sig[4];
	__le16 revision;
	__le16 features;
	__le16 opt_cmd;
	u8 reserved0[2];
	__le16 ext_param_page_length; /* since ONFI 2.1 */
	u8 num_of_param_pages;        /* since ONFI 2.1 */
	u8 reserved1[17];

	/* manufacturer information block */
	char manufacturer[12];
	char model[20];
	u8 jedec_id;
	__le16 date_code;
	u8 reserved2[13];

	/* memory organization block */
	__le32 byte_per_page;
	__le16 spare_bytes_per_page;
	__le32 data_bytes_per_ppage;
	__le16 spare_bytes_per_ppage;
	__le32 pages_per_block;
	__le32 blocks_per_lun;
	u8 lun_count;
	u8 addr_cycles;
	u8 bits_per_cell;
	__le16 bb_per_lun;
	__le16 block_endurance;
	u8 guaranteed_good_blocks;
	__le16 guaranteed_block_endurance;
	u8 programs_per_page;
	u8 ppage_attr;
	u8 ecc_bits;
	u8 interleaved_bits;
	u8 interleaved_ops;
	u8 reserved3[13];

	/* electrical parameter block */
	u8 io_pin_capacitance_max;
	__le16 sdr_timing_modes;
	__le16 program_cache_timing_mode;
	__le16 t_prog;
	__le16 t_bers;
	__le16 t_r;
	__le16 t_ccs;
	u8 nvddr_timing_modes;
	u8 nvddr2_timing_modes;
	u8 nvddr_nvddr2_features;
	__le16 clk_pin_capacitance_typ;
	__le16 io_pin_capacitance_typ;
	__le16 input_pin_capacitance_typ;
	u8 input_pin_capacitance_max;
	u8 driver_strength_support;
	__le16 t_int_r;
	__le16 t_adl;
	u8 reserved4[8];

	/* vendor */
	__le16 vendor_revision;
	u8 vendor[88];

	__le16 crc;
} __packed;

#define ONFI_CRC_BASE	0x4F4E

/* Extended ECC information Block Definition (since ONFI 2.1) */
struct onfi_ext_ecc_info {
	u8 ecc_bits;
	u8 codeword_size;
	__le16 bb_per_lun;
	__le16 block_endurance;
	u8 reserved[2];
} __packed;

#define ONFI_SECTION_TYPE_0	0	/* Unused section. */
#define ONFI_SECTION_TYPE_1	1	/* for additional sections. */
#define ONFI_SECTION_TYPE_2	2	/* for ECC information. */
struct onfi_ext_section {
	u8 type;
	u8 length;
} __packed;

#define ONFI_EXT_SECTION_MAX 8

/* Extended Parameter Page Definition (since ONFI 2.1) */
struct onfi_ext_param_page {

Annotation

Implementation Notes