52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
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#ifndef _CFI_FLASH_H
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#define _CFI_FLASH_H
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#include <stdint.h>
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#define FLASH_MAX_REGIONS 4
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typedef struct {
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void *fr_base;
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size_t fr_bnum;
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size_t fr_bsize;
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} flash_region_t;
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typedef struct {
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void *f_base;
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size_t f_size;
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size_t f_nregions;
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flash_region_t f_regions[FLASH_MAX_REGIONS];
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} flash_t;
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typedef enum {
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FLASH_UNLOCKED = 0,
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FLASH_LOCKED,
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FLASH_LOCKED_DOWN
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} flash_lock_t;
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/* manufacturer ids */
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enum cfi_manuf {
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CFI_MANUF_ST = 0x0020,
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CFI_MANUF_INTEL = 0x0089,
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CFI_MANUF_SPANSION = 0x0001,
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CFI_MANUF_SAMSUNG = 0x00EC,
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};
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int flash_init(flash_t *flash, void *base_addr);
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flash_lock_t flash_block_getlock(flash_t *flash, uint32_t block_offset);
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int flash_block_unlock(flash_t *flash, uint32_t block_offset);
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int flash_block_lock(flash_t *flash, uint32_t block_offset);
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int flash_block_lockdown(flash_t *flash, uint32_t block_offset);
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int flash_block_erase(flash_t *flash, uint32_t block_offset);
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int flash_program(flash_t *flash, uint32_t dst_offset, void *src, uint32_t nbytes);
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int flash_get_id(void *base_addr, uint16_t * manufacturer_id, uint16_t * device_id);
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#endif
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