include/linux/mtd/onenand_regs.h

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

File Facts

System
Linux kernel
Corpus path
include/linux/mtd/onenand_regs.h
Extension
.h
Size
7217 bytes
Lines
222
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

#ifndef __ONENAND_REG_H
#define __ONENAND_REG_H

/* Memory Address Map Translation (Word order) */
#define ONENAND_MEMORY_MAP(x)		((x) << 1)

/*
 * External BufferRAM area
 */
#define	ONENAND_BOOTRAM			ONENAND_MEMORY_MAP(0x0000)
#define	ONENAND_DATARAM			ONENAND_MEMORY_MAP(0x0200)
#define	ONENAND_SPARERAM		ONENAND_MEMORY_MAP(0x8010)

/*
 * OneNAND Registers
 */
#define ONENAND_REG_MANUFACTURER_ID	ONENAND_MEMORY_MAP(0xF000)
#define ONENAND_REG_DEVICE_ID		ONENAND_MEMORY_MAP(0xF001)
#define ONENAND_REG_VERSION_ID		ONENAND_MEMORY_MAP(0xF002)
#define ONENAND_REG_DATA_BUFFER_SIZE	ONENAND_MEMORY_MAP(0xF003)
#define ONENAND_REG_BOOT_BUFFER_SIZE	ONENAND_MEMORY_MAP(0xF004)
#define ONENAND_REG_NUM_BUFFERS		ONENAND_MEMORY_MAP(0xF005)
#define ONENAND_REG_TECHNOLOGY		ONENAND_MEMORY_MAP(0xF006)

#define ONENAND_REG_START_ADDRESS1	ONENAND_MEMORY_MAP(0xF100)
#define ONENAND_REG_START_ADDRESS2	ONENAND_MEMORY_MAP(0xF101)
#define ONENAND_REG_START_ADDRESS3	ONENAND_MEMORY_MAP(0xF102)
#define ONENAND_REG_START_ADDRESS4	ONENAND_MEMORY_MAP(0xF103)
#define ONENAND_REG_START_ADDRESS5	ONENAND_MEMORY_MAP(0xF104)
#define ONENAND_REG_START_ADDRESS6	ONENAND_MEMORY_MAP(0xF105)
#define ONENAND_REG_START_ADDRESS7	ONENAND_MEMORY_MAP(0xF106)
#define ONENAND_REG_START_ADDRESS8	ONENAND_MEMORY_MAP(0xF107)

#define ONENAND_REG_START_BUFFER	ONENAND_MEMORY_MAP(0xF200)
#define ONENAND_REG_COMMAND		ONENAND_MEMORY_MAP(0xF220)
#define ONENAND_REG_SYS_CFG1		ONENAND_MEMORY_MAP(0xF221)
#define ONENAND_REG_SYS_CFG2		ONENAND_MEMORY_MAP(0xF222)
#define ONENAND_REG_CTRL_STATUS		ONENAND_MEMORY_MAP(0xF240)
#define ONENAND_REG_INTERRUPT		ONENAND_MEMORY_MAP(0xF241)
#define ONENAND_REG_START_BLOCK_ADDRESS	ONENAND_MEMORY_MAP(0xF24C)
#define ONENAND_REG_END_BLOCK_ADDRESS	ONENAND_MEMORY_MAP(0xF24D)
#define ONENAND_REG_WP_STATUS		ONENAND_MEMORY_MAP(0xF24E)

#define ONENAND_REG_ECC_STATUS		ONENAND_MEMORY_MAP(0xFF00)
#define ONENAND_REG_ECC_M0		ONENAND_MEMORY_MAP(0xFF01)
#define ONENAND_REG_ECC_S0		ONENAND_MEMORY_MAP(0xFF02)
#define ONENAND_REG_ECC_M1		ONENAND_MEMORY_MAP(0xFF03)
#define ONENAND_REG_ECC_S1		ONENAND_MEMORY_MAP(0xFF04)
#define ONENAND_REG_ECC_M2		ONENAND_MEMORY_MAP(0xFF05)
#define ONENAND_REG_ECC_S2		ONENAND_MEMORY_MAP(0xFF06)
#define ONENAND_REG_ECC_M3		ONENAND_MEMORY_MAP(0xFF07)
#define ONENAND_REG_ECC_S3		ONENAND_MEMORY_MAP(0xFF08)

/*
 * Device ID Register F001h (R)
 */
#define DEVICE_IS_FLEXONENAND		(1 << 9)
#define FLEXONENAND_PI_MASK		(0x3ff)
#define FLEXONENAND_PI_UNLOCK_SHIFT	(14)
#define ONENAND_DEVICE_DENSITY_MASK	(0xf)
#define ONENAND_DEVICE_DENSITY_SHIFT	(4)
#define ONENAND_DEVICE_IS_DDP		(1 << 3)
#define ONENAND_DEVICE_IS_DEMUX		(1 << 2)
#define ONENAND_DEVICE_VCC_MASK		(0x3)

#define ONENAND_DEVICE_DENSITY_512Mb	(0x002)
#define ONENAND_DEVICE_DENSITY_1Gb	(0x003)
#define ONENAND_DEVICE_DENSITY_2Gb	(0x004)
#define ONENAND_DEVICE_DENSITY_4Gb	(0x005)
#define ONENAND_DEVICE_DENSITY_8Gb	(0x006)

/*
 * Version ID Register F002h (R)
 */
#define ONENAND_VERSION_PROCESS_SHIFT	(8)

/*
 * Technology Register F006h (R)
 */
#define ONENAND_TECHNOLOGY_IS_MLC	(1 << 0)

/*
 * Start Address 1 F100h (R/W) & Start Address 2 F101h (R/W)
 */
#define ONENAND_DDP_SHIFT		(15)
#define ONENAND_DDP_CHIP0		(0)
#define ONENAND_DDP_CHIP1		(1 << ONENAND_DDP_SHIFT)

/*
 * Start Address 8 F107h (R/W)

Annotation

Implementation Notes