diff options
Diffstat (limited to 'drivers/mtd/onenand')
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 553b24d9333..3d6f880cba9 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1051,40 +1051,37 @@ static int onenand_write(struct mtd_info *mtd, loff_t to, size_t len, } column = to & (mtd->writesize - 1); - subpage = column || (len & (mtd->writesize - 1)); /* Grab the lock and see if the device is available */ onenand_get_device(mtd, FL_WRITING); /* Loop until all data write */ while (written < len) { - int bytes = mtd->writesize; - int thislen = min_t(int, bytes, len - written); + int thislen = min_t(int, mtd->writesize - column, len - written); u_char *wbuf = (u_char *) buf; cond_resched(); - this->command(mtd, ONENAND_CMD_BUFFERRAM, to, bytes); + this->command(mtd, ONENAND_CMD_BUFFERRAM, to, thislen); /* Partial page write */ + subpage = thislen < mtd->writesize; if (subpage) { - bytes = min_t(int, bytes - column, (int) len); memset(this->page_buf, 0xff, mtd->writesize); - memcpy(this->page_buf + column, buf, bytes); + memcpy(this->page_buf + column, buf, thislen); wbuf = this->page_buf; - /* Even though partial write, we need page size */ - thislen = mtd->writesize; } - this->write_bufferram(mtd, ONENAND_DATARAM, wbuf, 0, thislen); + this->write_bufferram(mtd, ONENAND_DATARAM, wbuf, 0, mtd->writesize); this->write_bufferram(mtd, ONENAND_SPARERAM, ffchars, 0, mtd->oobsize); this->command(mtd, ONENAND_CMD_PROG, to, mtd->writesize); + ret = this->wait(mtd, FL_WRITING); + /* In partial page write we don't update bufferram */ - onenand_update_bufferram(mtd, to, !subpage); + onenand_update_bufferram(mtd, to, !ret && !subpage); - ret = this->wait(mtd, FL_WRITING); if (ret) { DEBUG(MTD_DEBUG_LEVEL0, "onenand_write: write filaed %d\n", ret); break; @@ -1098,6 +1095,7 @@ static int onenand_write(struct mtd_info *mtd, loff_t to, size_t len, } written += thislen; + if (written == len) break; |