X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fmtd%2Fnand%2Fnand_bbt.c;h=00f28a41571a6b0a0bc1454ecd832bf31032722a;hb=45fe3809b9923b92f221d70eb45ae071059fd5e0;hp=18c32af9aa4002851a46b798583b55fbba65ff16;hpb=273310644f4aef806d84d5b8b70c45aa60e7caaf;p=u-boot

diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 18c32af9aa..00f28a4157 100644
--- 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: