[PATCH 5/7] nand: fix build error when BBT not enabled.

[Marc Reilly]

This fixes following error when bad blocks config option is not enabled:

drivers/built-in.o: In function `nand_erase_nand':
drivers/mtd/nand/nand_write.c:721: undefined reference to `nand_update_bbt'
drivers/built-in.o: In function `nand_default_block_markbad':
drivers/mtd/nand/nand_write.c:76: undefined reference to `nand_update_bbt'
make: *** [barebox] Error 1

Signed-off-by: Marc Reilly <marc at cpdesign.com.au>
---
 drivers/mtd/nand/nand_write.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/nand_write.c b/drivers/mtd/nand/nand_write.c
index 13b6c89..0fd49d6 100644
--- a/drivers/mtd/nand/nand_write.c
+++ b/drivers/mtd/nand/nand_write.c
@@ -72,9 +72,15 @@ int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 		chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
 
 	/* Do we have a flash based bad block table ? */
-	if (chip->options & NAND_USE_FLASH_BBT)
+	if (chip->options & NAND_USE_FLASH_BBT) {
+#if defined(CONFIG_NAND_BBT)
 		ret = nand_update_bbt(mtd, ofs);
-	else {
+#else
+		printk(KERN_WARNING "NAND trying to use BBT,"
+				"but not supported\n");
+		ret = 0;
+#endif
+	} else {
 		/* We write two bytes, so we dont have to mess with 16 bit
 		 * access
 		 */
@@ -714,11 +720,13 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
 	for (chipnr = 0; chipnr < chip->numchips; chipnr++) {
 		if (!rewrite_bbt[chipnr])
 			continue;
+#if defined(CONFIG_NAND_BBT)
 		/* update the BBT for chip */
 		MTD_DEBUG(MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt "
 		      "(%d:0x%0x 0x%0x)\n", chipnr, rewrite_bbt[chipnr],
 		      chip->bbt_td->pages[chipnr]);
 		nand_update_bbt(mtd, rewrite_bbt[chipnr]);
+#endif
 	}
 
 	/* Return more or less happy */
-- 
1.7.7