/* Note: The header order is impoertant */
#include <onenand_uboot.h>
+#include <linux/compat.h>
#include <linux/mtd/bbm.h>
+#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
*/
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);
+ int (*chip_probe)(struct mtd_info *mtd);
+ 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_4KB_PAGE(this) \
+ (this->options & ONENAND_HAS_4KB_PAGE)
+
+#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_HAS_4KB_PAGE (0x0008)
+#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
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 */
projects / karo-tx-uboot.git / blobdiff