void		spiflashcmd(int argc, char **argv);
uint16_t	spiflashreadid(void);
uint8_t		spiflashreadstatus(void);
void		spiflashwritestatus(uint8_t status);
void		spiflashwritectl(int enable);
void		spiflash4kerase(uint32_t addr);
uint8_t		spiflashread(uint32_t addr);
void		spiflashenablewrite(void);
void		spiflashwrite(uint32_t addr, uint8_t data);
void		spiflashwait(void);
int		spiflashreadblock(uint32_t addr, uint32_t len, void *_data);
int		spiflashwriteblock(uint32_t addr, uint32_t len, void *_data);
uint32_t	spiflashcrcblock(uint32_t addr, uint32_t len);
void		spiflashprintstatus(uint8_t status, FILE *out);

/* Streaming read/write */
void		spiflashstartread(uint32_t addr);
uint8_t		spiflashreadbyte(void);
void		spiflashstartwrite(uint32_t addr, uint16_t data);
void		spiflashwriteword(uint16_t data);
void		spiflashstopread(void);
void		spiflashstopwrite(void);

#define FL_BUSY		(1<<0)
#define FL_WEL		(1<<1)
#define FL_BP0		(1<<2)
#define FL_BP1		(1<<3)
#define FL_BP2		(1<<4)
#define FL_BP3		(1<<5)
#define FL_AAI		(1<<6)
#define FL_BPL		(1<<7)

#define FL_READ		0x03
#define FL_HSREAD	0x0b
#define FL_4KERASE	0x20
#define FL_32KERASE	0x52
#define FL_64KERASE	0xd8
#define FL_CHIPERASE	0x60
#define FL_BYTEPROG	0x02
#define FL_AAIWP	0xad
#define FL_RDSR		0x05
#define FL_EWSR		0x50
#define FL_WRSR		0x01
#define FL_WREN		0x06
#define FL_WRDI		0x04
#define FL_RDID		0x90
#define FL_JEDECID	0x9f
#define FL_EBSY		0x70
#define FL_DBSY		0x80