X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Flinux%2Fmtd%2Fonenand.h;h=54655626395054869396f4d4887512b5fd87a1fc;hb=ff8a8a718341e42af8642f01ce630d4a77c58f82;hp=4b0c2dfaaaa412305ae301ef93e7c9d0dd58277b;hpb=d7e8ce101a4a45ed6ed45739fc2de5f87b13f7f1;p=u-boot diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index 4b0c2dfaaa..5465562639 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -17,53 +17,43 @@ /* Note: The header order is impoertant */ #include +#include #include +#define MAX_DIES 2 #define MAX_BUFFERRAM 2 -#define MAX_ONENAND_PAGESIZE (2048 + 64) +#define MAX_ONENAND_PAGESIZE (4096 + 128) /* Scan and identify a OneNAND device */ extern int onenand_scan (struct mtd_info *mtd, int max_chips); /* Free resources held by the OneNAND device */ extern void onenand_release (struct mtd_info *mtd); -/** - * onenand_state_t - chip states - * Enumeration for OneNAND flash chip state - */ -typedef enum { - FL_READY, - FL_READING, - FL_WRITING, - FL_ERASING, - FL_SYNCING, - FL_UNLOCKING, - FL_LOCKING, -} onenand_state_t; - /** * struct onenand_bufferram - OneNAND BufferRAM Data - * @param block block address in BufferRAM - * @param page page address in BufferRAM - * @param valid valid flag + * @param blockpage block & page address in BufferRAM */ struct onenand_bufferram { - int block; - int page; - int valid; + int blockpage; }; /** * struct onenand_chip - OneNAND Private Flash Chip Data * @param base [BOARDSPECIFIC] address to access OneNAND + * @dies: [INTERN][FLEXONENAND] number of dies on chip + * @boundary: [INTERN][FLEXONENAND] Boundary of the dies + * @diesize: [INTERN][FLEXONENAND] Size of the dies * @param chipsize [INTERN] the size of one chip for multichip arrays * @param device_id [INTERN] device ID * @param verstion_id [INTERN] version ID + * @technology [INTERN] describes the internal NAND array technology such as SLC or MLC. + * @density_mask: [INTERN] chip density, used for DDP devices * @param options [BOARDSPECIFIC] various chip options. They can partly be set to inform onenand_scan about * @param erase_shift [INTERN] number of address bits in a block * @param page_shift [INTERN] number of address bits in a page * @param ppb_shift [INTERN] number of address bits in a pages per block * @param page_mask [INTERN] a page per block mask + * @param writesize [INTERN] a real page size * @param bufferam_index [INTERN] BufferRAM index * @param bufferam [INTERN] BufferRAM info * @param readw [REPLACEABLE] hardware specific function for read short @@ -80,55 +70,92 @@ struct onenand_bufferram { */ struct onenand_chip { void __iomem *base; + unsigned int dies; + unsigned int boundary[MAX_DIES]; + unsigned int diesize[MAX_DIES]; unsigned int chipsize; unsigned int device_id; + unsigned int version_id; + unsigned int technology; + unsigned int density_mask; unsigned int options; unsigned int erase_shift; unsigned int page_shift; unsigned int ppb_shift; /* Pages per block shift */ unsigned int page_mask; + unsigned int writesize; unsigned int bufferram_index; struct onenand_bufferram bufferram[MAX_BUFFERRAM]; - int (*command) (struct mtd_info * mtd, int cmd, loff_t address, + int (*command) (struct mtd_info *mtd, int cmd, loff_t address, size_t len); - int (*wait) (struct mtd_info * mtd, int state); - int (*read_bufferram) (struct mtd_info * mtd, int area, + int (*wait) (struct mtd_info *mtd, int state); + int (*bbt_wait) (struct mtd_info *mtd, int state); + void (*unlock_all)(struct mtd_info *mtd); + int (*read_bufferram) (struct mtd_info *mtd, loff_t addr, int area, unsigned char *buffer, int offset, size_t count); - int (*write_bufferram) (struct mtd_info * mtd, int area, + int (*write_bufferram) (struct mtd_info *mtd, loff_t addr, int area, const unsigned char *buffer, int offset, size_t count); - unsigned short (*read_word) (void __iomem * addr); - void (*write_word) (unsigned short value, void __iomem * addr); - void (*mmcontrol) (struct mtd_info * mtd, int sync_read); - + unsigned short (*read_word) (void __iomem *addr); + void (*write_word) (unsigned short value, void __iomem *addr); + void (*mmcontrol) (struct mtd_info *mtd, int sync_read); + int (*block_markbad)(struct mtd_info *mtd, loff_t ofs); + int (*scan_bbt)(struct mtd_info *mtd); + + unsigned char *main_buf; + unsigned char *spare_buf; +#ifdef DONT_USE_UBOOT spinlock_t chip_lock; wait_queue_head_t wq; - onenand_state_t state; +#endif + int state; + unsigned char *page_buf; + unsigned char *oob_buf; struct nand_oobinfo *autooob; + int subpagesize; + struct nand_ecclayout *ecclayout; void *bbm; void *priv; }; +/* + * Helper macros + */ #define ONENAND_CURRENT_BUFFERRAM(this) (this->bufferram_index) #define ONENAND_NEXT_BUFFERRAM(this) (this->bufferram_index ^ 1) #define ONENAND_SET_NEXT_BUFFERRAM(this) (this->bufferram_index ^= 1) +#define ONENAND_SET_PREV_BUFFERRAM(this) (this->bufferram_index ^= 1) +#define ONENAND_SET_BUFFERRAM0(this) (this->bufferram_index = 0) +#define ONENAND_SET_BUFFERRAM1(this) (this->bufferram_index = 1) + +#define FLEXONENAND(this) (this->device_id & DEVICE_IS_FLEXONENAND) +#define ONENAND_IS_MLC(this) (this->technology & ONENAND_TECHNOLOGY_IS_MLC) +#define ONENAND_IS_DDP(this) \ + (this->device_id & ONENAND_DEVICE_IS_DDP) + +#define ONENAND_IS_2PLANE(this) (0) /* * Options bits */ -#define ONENAND_CONT_LOCK (0x0001) +#define ONENAND_HAS_CONT_LOCK (0x0001) +#define ONENAND_HAS_UNLOCK_ALL (0x0002) +#define ONENAND_HAS_2PLANE (0x0004) +#define ONENAND_RUNTIME_BADBLOCK_CHECK (0x0200) +#define ONENAND_PAGEBUF_ALLOC (0x1000) +#define ONENAND_OOBBUF_ALLOC (0x2000) /* * OneNAND Flash Manufacturer ID Codes */ +#define ONENAND_MFR_NUMONYX 0x20 #define ONENAND_MFR_SAMSUNG 0xec -#define ONENAND_MFR_UNKNOWN 0x00 /** * struct nand_manufacturers - NAND Flash Manufacturer ID Structure @@ -140,4 +167,9 @@ struct onenand_manufacturers { char *name; }; +int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, + struct mtd_oob_ops *ops); + +unsigned int onenand_block(struct onenand_chip *this, loff_t addr); +int flexonenand_region(struct mtd_info *mtd, loff_t addr); #endif /* __LINUX_MTD_ONENAND_H */