ubi_assert(ubi->hdrs_min_io_size <= ubi->min_io_size);
ubi_assert(ubi->min_io_size % ubi->hdrs_min_io_size == 0);
+ ubi->max_write_size = ubi->mtd->writebufsize;
+ /*
+ * Maximum write size has to be greater or equivalent to min. I/O
+ * size, and be multiple of min. I/O size.
+ */
+ if (ubi->max_write_size < ubi->min_io_size ||
+ ubi->max_write_size % ubi->min_io_size ||
+ !is_power_of_2(ubi->max_write_size)) {
+ ubi_err("bad write buffer size %d for %d min. I/O unit",
+ ubi->max_write_size, ubi->min_io_size);
+ return -EINVAL;
+ }
+
/* Calculate default aligned sizes of EC and VID headers */
ubi->ec_hdr_alsize = ALIGN(UBI_EC_HDR_SIZE, ubi->hdrs_min_io_size);
ubi->vid_hdr_alsize = ALIGN(UBI_VID_HDR_SIZE, ubi->hdrs_min_io_size);
dbg_msg("min_io_size %d", ubi->min_io_size);
+ dbg_msg("max_write_size %d", ubi->max_write_size);
dbg_msg("hdrs_min_io_size %d", ubi->hdrs_min_io_size);
dbg_msg("ec_hdr_alsize %d", ubi->ec_hdr_alsize);
dbg_msg("vid_hdr_alsize %d", ubi->vid_hdr_alsize);