From 1cc523999e0acd0c21f83bf89b7a44b4ab6f7bd8 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 20 Oct 2009 22:02:41 +0900 Subject: [PATCH] Revert "mtd: mxc_nand: fix 2KiB pagesize NAND on i.MX27" This reverts commit 71b7d0d90d536ae4e70929cc59a1a9f6ba457c6c. The problem which that commit attempted to fix was a bootloader issue, which had been misunderstood. The 'fix' causes lots of false bad blocks for existing users with sane firmware. Thanks to Mathieu Berland for diagnosing the problem coherently. Signed-off-by: David Woodhouse --- drivers/mtd/nand/mxc_nand.c | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index ef3e1998..06c5314 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -857,17 +857,6 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, } } -/* Define some generic bad / good block scan pattern which are used - * while scanning a device for factory marked good / bad blocks. */ -static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; - -static struct nand_bbt_descr smallpage_memorybased = { - .options = NAND_BBT_SCAN2NDPAGE, - .offs = 5, - .len = 1, - .pattern = scan_ff_pattern -}; - static int __init mxcnd_probe(struct platform_device *pdev) { struct nand_chip *this; @@ -984,10 +973,7 @@ static int __init mxcnd_probe(struct platform_device *pdev) goto escan; } - if (mtd->writesize == 2048) { - host->pagesize_2k = 1; - this->badblock_pattern = &smallpage_memorybased; - } + host->pagesize_2k = (mtd->writesize == 2048) ? 1 : 0; if (this->ecc.mode == NAND_ECC_HW) { switch (mtd->oobsize) { -- 2.7.4