Subversion Repositories openrisc_2011-10-31

#ifndef _FLASH_H

#define _FLASH_H

#ifdef FLASH_BASE_ADDR

#ifdef FLASH_ORG_16_2

/* INC_ADDR = for how many bytes address should be incremented */

#define INC_ADDR             4

#define reg_write(a,b)       (REG32(a) = b)

#define reg_read(a)          (REG32(a))

#define check_error_bit(a,b) ((a & (b << 16)) || (a & b))

#define fl_wait_busy(a)      (!(a & (FL_SR_WSM_READY << 16)) || !(a & FL_SR_WSM_READY))

#elif FLASH_ORG_16_1

#define INC_ADDR             2

#define reg_write(a,b)       (REG16(a) = (unsigned short)b)

#define reg_read(a)          (REG16(a))

#define check_error_bit(a,b) (a & b)

#define fl_wait_busy(a)      (!(a & FL_SR_WSM_READY))

#else

#error Flash organization is not set! Check board.h.

#endif

#define FL_SR_WSM_READY   0x80

#define FL_SR_ERASE_ERR   0x20

#define FL_SR_PROG_ERR    0x40

#define FL_SR_PROG_LV     0x08

#define FL_SR_LOCK        0x02

int fl_init (void);

int fl_unlock_one_block (unsigned long addr);

int fl_unlock_blocks (void);

int fl_word_program (unsigned long addr, unsigned long val);

int fl_block_erase (unsigned long addr);

/* erase = 1 (whole chip), erase = 2 (required only) */

int fl_program (unsigned long src_addr, unsigned long dst_addr, unsigned long len, int erase, int verify);

/*

 * Next definitions and functions are here, because we need there flash

 * functions in RAM (when we are running orpmon from Flash). They are

 * copied to RAM and fl_ext_program, fl_ext_erase and fl_ext_unlock are

 * pointing to them.

 */

typedef int(*t_fl_ext_program)(unsigned long, unsigned long);

typedef int(*t_fl_erase)(unsigned long);

typedef void(*t_uart_putc)(unsigned char);

t_fl_ext_program fl_ext_program;

t_fl_erase fl_ext_erase, fl_ext_unlock;

#endif

#endif /* _FLASH_H */