openwrt/package/uboot-envtools/patches/003-nor-eraselen.patch

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--- a/fw_env.c
+++ b/fw_env.c
@@ -605,7 +605,10 @@ static int flash_write_buf (int dev, int
erase_offset = offset & ~(blocklen - 1);
/* Maximum area we may use */
- erase_len = top_of_range - erase_offset;
+ if (mtd_type == MTD_NANDFLASH)
+ erase_len = top_of_range - erase_offset;
+ else
+ erase_len = blocklen;
blockstart = erase_offset;
/* Offset inside a block */