diff options
Diffstat (limited to 'spiflash_n25q128.c')
| -rw-r--r-- | spiflash_n25q128.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/spiflash_n25q128.c b/spiflash_n25q128.c index 6e35a41..03273a8 100644 --- a/spiflash_n25q128.c +++ b/spiflash_n25q128.c @@ -298,7 +298,7 @@ inline int _wait_while_wip(struct spiflash_ctx *ctx, uint32_t timeout) } /* This function performs erasure if needed, and then writing of a number of pages to the flash memory */ -int n25q128_write_data(struct spiflash_ctx *ctx, uint32_t offset, const uint8_t *buf, const uint32_t len) +int n25q128_write_data(struct spiflash_ctx *ctx, uint32_t offset, const uint8_t *buf, const uint32_t len, const int auto_erase) { uint32_t page; @@ -306,8 +306,15 @@ int n25q128_write_data(struct spiflash_ctx *ctx, uint32_t offset, const uint8_t if ((offset % N25Q128_PAGE_SIZE) != 0) return -1; if ((len % N25Q128_PAGE_SIZE) != 0) return -2; - if ((offset % N25Q128_SECTOR_SIZE) == 0) { - /* first page in sector, need to erase sector */ + if (auto_erase && (offset % N25Q128_SECTOR_SIZE) == 0) { + /* + * first page in sector, need to erase sector + * + * So why do we only do this when the buffer starts on the + * sector, as opposed to performing this check for every page? + * Also, might be better to do this by subsectors rather than + * sectors. + */ if (! _wait_while_wip(ctx, 1000)) return -3; |