Merge branch 'master' of git://git.denx.de/u-boot-i2c; branch 'master' of git://git...

[u-boot] / drivers / mtd / nand / nand_bbt.c

diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 18c32af9aa4002851a46b798583b55fbba65ff16..00f28a41571a6b0a0bc1454ecd832bf31032722a 100644 (file)
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -199,12 +199,12 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
                res = mtd_read(mtd, from, len, &retlen, buf);
                if (res < 0) {
                        if (mtd_is_eccerr(res)) {
-                               pr_info("nand_bbt: ECC error in BBT at "
-                                       "0x%012llx\n", from & ~mtd->writesize);
+                               pr_info("nand_bbt: ECC error in BBT at 0x%012llx\n",
+                                       from & ~mtd->writesize);
                                return res;
                        } else if (mtd_is_bitflip(res)) {
-                               pr_info("nand_bbt: corrected error in BBT at "
-                                       "0x%012llx\n", from & ~mtd->writesize);
+                               pr_info("nand_bbt: corrected error in BBT at 0x%012llx\n",
+                                       from & ~mtd->writesize);
                                ret = res;
                        } else {
                                pr_info("nand_bbt: error reading BBT\n");
@@ -578,8 +578,8 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
                if (td->pages[i] == -1)
                        pr_warn("Bad block table not found for chip %d\n", i);
                else
-                       pr_info("Bad block table found at page %d, version "
-                                "0x%02X\n", td->pages[i], td->version[i]);
+                       pr_info("Bad block table found at page %d, version 0x%02X\n",
+                               td->pages[i], td->version[i]);
        }
        return 0;
 }
@@ -723,12 +723,10 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
                        res = mtd_read(mtd, to, len, &retlen, buf);
                        if (res < 0) {
                                if (retlen != len) {
-                                       pr_info("nand_bbt: error reading block "
-                                               "for writing the bad block table\n");
+                                       pr_info("nand_bbt: error reading block for writing the bad block table\n");
                                        return res;
                                }
-                               pr_warn("nand_bbt: ECC error while reading "
-                                       "block for writing bad block table\n");
+                               pr_warn("nand_bbt: ECC error while reading block for writing bad block table\n");
                        }
                        /* Read oob data */
                        ops.ooblen = (len >> this->page_shift) * mtd->oobsize;
@@ -1280,6 +1278,7 @@ static int nand_create_badblock_pattern(struct nand_chip *this)
 int nand_default_bbt(struct mtd_info *mtd)
 {
        struct nand_chip *this = mtd->priv;
+       int ret;
 
        /* Is a flash based bad block table requested? */
        if (this->bbt_options & NAND_BBT_USE_FLASH) {
@@ -1298,12 +1297,29 @@ int nand_default_bbt(struct mtd_info *mtd)
                this->bbt_md = NULL;
        }
 
-       if (!this->badblock_pattern)
-               nand_create_badblock_pattern(this);
+       if (!this->badblock_pattern) {
+               ret = nand_create_badblock_pattern(this);
+               if (ret)
+                       return ret;
+       }
 
        return nand_scan_bbt(mtd, this->badblock_pattern);
 }
 
+/**
+ * nand_isreserved_bbt - [NAND Interface] Check if a block is reserved
+ * @mtd: MTD device structure
+ * @offs: offset in the device
+ */
+int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs)
+{
+       struct nand_chip *this = mtd->priv;
+       int block;
+
+       block = (int)(offs >> this->bbt_erase_shift);
+       return bbt_get_entry(this, block) == BBT_BLOCK_RESERVED;
+}
+
 /**
  * nand_isbad_bbt - [NAND Interface] Check if a block is bad
  * @mtd: MTD device structure
@@ -1318,9 +1334,8 @@ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
        block = (int)(offs >> this->bbt_erase_shift);
        res = bbt_get_entry(this, block);
 
-       pr_debug("nand_isbad_bbt(): bbt info for offs 0x%08x: "
-                       "(block %d) 0x%02x\n",
-                       (unsigned int)offs, block, res);
+       pr_debug("nand_isbad_bbt(): bbt info for offs 0x%08x: (block %d) 0x%02x\n",
+                (unsigned int)offs, block, res);
 
        switch (res) {
        case BBT_BLOCK_GOOD: