diff options
Diffstat (limited to 'flash.h')
| -rw-r--r-- | flash.h | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -130,6 +130,13 @@ enum write_granularity { #define FEATURE_4BA_NATIVE (FEATURE_4BA_READ | FEATURE_4BA_FAST_READ | FEATURE_4BA_WRITE) #define FEATURE_4BA (FEATURE_4BA_ENTER | FEATURE_4BA_EXT_ADDR | FEATURE_4BA_NATIVE) #define FEATURE_4BA_WREN (FEATURE_4BA_ENTER_WREN | FEATURE_4BA_EXT_ADDR | FEATURE_4BA_NATIVE) +/* + * Most flash chips are erased to ones and programmed to zeros. However, some + * other flash chips, such as the ENE KB9012 internal flash, work the opposite way. + */ +#define FEATURE_ERASED_ZERO (1 << 16) + +#define ERASED_VALUE(flash) (((flash)->chip->feature_bits & FEATURE_ERASED_ZERO) ? 0x00 : 0xff) enum test_state { OK = 0, @@ -309,7 +316,7 @@ int probe_flash(struct registered_master *mst, int startchip, struct flashctx *f int read_flash_to_file(struct flashctx *flash, const char *filename); char *extract_param(const char *const *haystack, const char *needle, const char *delim); int verify_range(struct flashctx *flash, const uint8_t *cmpbuf, unsigned int start, unsigned int len); -int need_erase(const uint8_t *have, const uint8_t *want, unsigned int len, enum write_granularity gran); +int need_erase(const uint8_t *have, const uint8_t *want, unsigned int len, enum write_granularity gran, const uint8_t erased_value); void print_version(void); void print_buildinfo(void); void print_banner(void); |