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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 08/11] imx-bbu-nand-fcb: When writing firmware return new bad blocks
Date: Tue, 15 Mar 2016 12:19:11 +0100	[thread overview]
Message-ID: <1458040754-32240-9-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1458040754-32240-1-git-send-email-s.hauer@pengutronix.de>

Positive return values of imx_bbu_write_firmware() so far indicate
the last block that has been written to. This value is unused, so
return values > 0 to indicate if there are new bad blocks. This
information can be used in the next step to know if the DBBT has
to be rewritten.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 common/imx-bbu-nand-fcb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/common/imx-bbu-nand-fcb.c b/common/imx-bbu-nand-fcb.c
index 0c7f75c..3e1f35f 100644
--- a/common/imx-bbu-nand-fcb.c
+++ b/common/imx-bbu-nand-fcb.c
@@ -400,7 +400,7 @@ static int imx_bbu_firmware_start_block(struct mtd_info *mtd, int num)
 static int imx_bbu_write_firmware(struct mtd_info *mtd, unsigned num, void *buf,
 				  size_t len)
 {
-	int ret, i;
+	int ret, i, newbadblock = 0;
 	int num_blocks = imx_bbu_firmware_max_blocks(mtd);
 	int block = imx_bbu_firmware_start_block(mtd, num);
 
@@ -437,6 +437,7 @@ static int imx_bbu_write_firmware(struct mtd_info *mtd, unsigned num, void *buf,
 		if (ret == -EIO) {
 			block++;
 			num_blocks--;
+			newbadblock = 1;
 			continue;
 		}
 
@@ -449,7 +450,7 @@ static int imx_bbu_write_firmware(struct mtd_info *mtd, unsigned num, void *buf,
 		num_blocks--;
 	}
 
-	return block;
+	return newbadblock;
 }
 
 static void *dbbt_data_create(struct mtd_info *mtd)
-- 
2.7.0


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  parent reply	other threads:[~2016-03-15 11:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-15 11:19 i.MX NAND Boot: Make update robust against power failures Sascha Hauer
2016-03-15 11:19 ` [PATCH 01/11] bbu: Allow to refresh/repair images Sascha Hauer
2016-03-15 11:19 ` [PATCH 02/11] mtd: nand: export nand_check_erased_buf Sascha Hauer
2016-03-15 11:19 ` [PATCH 03/11] imx-bbu-nand-fcb: factor out layout functions Sascha Hauer
2016-03-15 11:19 ` [PATCH 04/11] imx-bbu-nand-fcb: Use mtd-peb API to write firmware Sascha Hauer
2016-03-15 11:19 ` [PATCH 05/11] imx-bbu-nand-fcb: factor out a fcb write function Sascha Hauer
2016-03-15 11:19 ` [PATCH 06/11] imx-bbu-nand-fcb: erase on demand Sascha Hauer
2016-03-15 11:19 ` [PATCH 07/11] imx-bbu-nand-fcb: Only write FCBs/DBBTs when necessary Sascha Hauer
2016-03-15 11:19 ` Sascha Hauer [this message]
2016-03-15 11:19 ` [PATCH 09/11] imx-bbu-nand-fcb: Print error when writing blocks fails Sascha Hauer
2016-03-15 11:19 ` [PATCH 10/11] imx-bbu-nand-fcb: Make robust against power cuts Sascha Hauer
2016-03-15 11:19 ` [PATCH 11/11] imx-bbu-nand-fcb: Print error message when out of pebs Sascha Hauer

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