[U-Boot] [PATCH] cmd/nand.c: Debug additional helpful NAND info

[Ahmed Samir Khalil <engkhalil86@gmail.com>]

While dealing with large chips (e.g. page: 4KB, OOB:224),
 we found it helpful to get these additional NAND info by
 enabling the DEBUG macro instead of full tracing every time
 and consuming time. Especially about the currently in use
 scheme for testing & development.

Signed-off-by: Ahmed Samir Khalil <engkhalil86@gmail.com>
---
 cmd/nand.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/cmd/nand.c b/cmd/nand.c
index c16ec77..ec7f1df 100644
--- a/cmd/nand.c
+++ b/cmd/nand.c
@@ -283,6 +283,9 @@ usage:
 
 static void nand_print_and_set_info(int idx)
 {
+#ifdef DEBUG
+	unsigned int i;
+#endif
 	struct mtd_info *mtd = nand_info[idx];
 	struct nand_chip *chip = mtd_to_nand(mtd);
 
@@ -298,6 +301,29 @@ static void nand_print_and_set_info(int idx)
 	printf("  options     0x%8x\n", chip->options);
 	printf("  bbt options 0x%8x\n", chip->bbt_options);
 
+#ifdef DEBUG
+	printf("  Chip delay  %7d us\n", chip->chip_delay);
+	printf("  ECC bytes   %8d b\n", nand->ecclayout->eccbytes);
+	printf("  OOB available %6d b\n\n", nand->ecclayout->oobavail);
+
+	printf("  OOB free = {\n");
+	for (i=0; i < nand->ecclayout->oobfree[i].length; i++) {
+		if( !(nand->ecclayout->oobfree[i].offset<0) )
+			printf("	{.offset=%d, ", nand->ecclayout->oobfree[i].offset);
+
+		if( !(nand->ecclayout->oobfree[i].length<0) )
+			printf(".length=%d}, \n", nand->ecclayout->oobfree[i].length);
+	}
+
+	printf("  };\n\n");
+	printf("  ECC positions = {\n");
+	for (i=0; i < MTD_MAX_ECCPOS_ENTRIES_LARGE; i++) {
+		if(nand->ecclayout->eccpos[i]>0)
+			printf("%d, ", nand->ecclayout->eccpos[i]);
+	}
+	printf("\n  };\n\n");
+#endif
+
 	/* Set geometry info */
 	setenv_hex("nand_writesize", mtd->writesize);
 	setenv_hex("nand_oobsize", mtd->oobsize);
-- 
2.7.4