Hi Sascha
Please let me know when you have some time to look into this :-)
I dosen't seem right that it writes the bbt on a 4.19 series kernel twice
For me the disturbing part is:
[ 4.175918] Bad block table not found for chip 0
[ 4.184059] Bad block table not found for chip 0
Writing the BBT twice is expected.
Thanks,
Miquèl
Hi,
Tried this:
diff --git a/drivers/mtd/nand/raw/nand_bbt.c
b/drivers/mtd/nand/raw/nand_bbt.c
index 39db352f8757..b0337f8a0da4 100644
--- a/drivers/mtd/nand/raw/nand_bbt.c
+++ b/drivers/mtd/nand/raw/nand_bbt.c
@@ -1200,6 +1200,8 @@ static int nand_scan_bbt(struct mtd_info *mtd,
struct nand_bbt_descr *bd)
if (res)
goto err;
+ search_read_bbts(mtd, buf, td, md);
+
/* Prevent the bbt regions from erasing / writing */
mark_bbt_region(mtd, td);
if (md
Result is:
[ 2.191412] nand: device found, Manufacturer ID: 0x98, Chip ID: 0xdc
[ 2.198095] nand: Toshiba NAND 512MiB 3,3V 8-bit
[ 2.202848] nand: 512 MiB, SLC, erase size: 256 KiB, page size: 4096,
OOB size: 128
[ 2.217337] Bad block table not found for chip 0
[ 2.225535] Bad block table not found for chip 0
[ 2.230475] Scanning device for bad blocks
[ 2.749832] Bad eraseblock 798 at 0x00000c780000
[ 3.230712] Bad eraseblock 1536 at 0x000018000000
[ 3.236263] Bad eraseblock 1537 at 0x000018040000
[ 3.574122] Bad block table written to 0x00001ffc0000, version 0x01
[ 3.584874] Bad block table written to 0x00001ff80000, version 0x01
[ 3.592306] Bad block table found at page 131008, version 0x01
[ 3.600059] Bad block table found at page 130944, version 0x01
[ 3.607129] 3 fixed-partitions partitions found on MTD device
gpmi-nand
[ 3.614105] Creating 3 MTD partitions on "gpmi-nand":
[ 3.619540] 0x000000000000-0x000000800000 : "boot"
[ 3.635437] 0x000000800000-0x00001ca00000 : "ubi"
[ 4.018183] 0x00001ca00000-0x000020000000 : "testing"
[ 4.070734] gpmi-nand 1806000.gpmi-nand: driver registered.
Seems like it's U-boot that is corrupting the table.
But I don't think it's related to the original issue with commit
ef347c0cfd619a9251e5a2f9ff72e33650a9bccb
/Sean
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
