From: Matthieu CASTET <matthieu.castet@parrot.com> To: linux-mtd@lists.infradead.org, linux-omap@vger.kernel.org Cc: dedekind1@gmail.com, Matthieu CASTET <matthieu.castet@parrot.com> Subject: [PATCH 1/3] mtd nand : onfi need to be probed in 8 bits mode Date: Tue, 6 Nov 2012 11:51:43 +0100 [thread overview] Message-ID: <1352199105-30215-1-git-send-email-matthieu.castet@parrot.com> (raw) - NAND_CMD_READID want an address that it is not scaled on x16 device (it is always 0x20) - NAND_CMD_PARAM want 8 bits data Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com> --- drivers/mtd/nand/nand_base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 5894c2c..abeb8e9 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2851,6 +2851,8 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, int i; int val; + /* ONFI need to be probed in 8 bits mode */ + WARN_ON(chip->options & NAND_BUSWIDTH_16); /* Try ONFI for unknown chip or LP */ chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1); if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' || -- 1.7.10.4
WARNING: multiple messages have this Message-ID (diff)
From: Matthieu CASTET <matthieu.castet@parrot.com> To: linux-mtd@lists.infradead.org, linux-omap@vger.kernel.org Cc: Matthieu CASTET <matthieu.castet@parrot.com>, dedekind1@gmail.com Subject: [PATCH 1/3] mtd nand : onfi need to be probed in 8 bits mode Date: Tue, 6 Nov 2012 11:51:43 +0100 [thread overview] Message-ID: <1352199105-30215-1-git-send-email-matthieu.castet@parrot.com> (raw) - NAND_CMD_READID want an address that it is not scaled on x16 device (it is always 0x20) - NAND_CMD_PARAM want 8 bits data Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com> --- drivers/mtd/nand/nand_base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 5894c2c..abeb8e9 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2851,6 +2851,8 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, int i; int val; + /* ONFI need to be probed in 8 bits mode */ + WARN_ON(chip->options & NAND_BUSWIDTH_16); /* Try ONFI for unknown chip or LP */ chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1); if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' || -- 1.7.10.4
next reply other threads:[~2012-11-06 10:51 UTC|newest] Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-11-06 10:51 Matthieu CASTET [this message] 2012-11-06 10:51 ` [PATCH 1/3] mtd nand : onfi need to be probed in 8 bits mode Matthieu CASTET 2012-11-06 10:51 ` [PATCH 2/3] mtd nand : add NAND_BUSWIDTH_AUTO to autodetect bus width Matthieu CASTET 2012-11-06 10:51 ` Matthieu CASTET 2012-11-30 13:21 ` Artem Bityutskiy 2012-11-30 13:21 ` Artem Bityutskiy 2012-11-06 10:51 ` [PATCH 3/3] omap3 nand : use NAND_BUSWIDTH_AUTO Matthieu CASTET 2012-11-06 10:51 ` Matthieu CASTET 2012-11-06 12:37 ` Igor Grinberg 2012-11-06 12:37 ` Igor Grinberg 2012-11-06 16:47 ` Matthieu CASTET 2012-11-06 16:47 ` Matthieu CASTET 2012-11-06 18:40 ` Tony Lindgren 2012-11-06 18:40 ` Tony Lindgren 2012-11-16 8:22 ` Artem Bityutskiy 2012-11-16 8:22 ` Artem Bityutskiy 2012-11-22 17:48 ` Matthieu CASTET 2012-11-22 17:48 ` Matthieu CASTET 2012-12-03 10:20 ` [PATCH 1/3] mtd nand : onfi need to be probed in 8 bits mode Artem Bityutskiy 2012-12-03 10:20 ` Artem Bityutskiy 2012-12-24 0:29 ` Paul Walmsley 2012-12-24 0:29 ` Paul Walmsley 2013-01-02 9:51 ` Matthieu CASTET 2013-01-02 9:51 ` Matthieu CASTET 2013-01-03 17:10 ` Paul Walmsley 2013-01-03 17:10 ` Paul Walmsley 2013-01-16 14:28 ` Matthieu CASTET 2013-01-16 14:28 ` Matthieu CASTET 2013-01-16 17:15 ` Paul Walmsley 2013-01-16 17:15 ` Paul Walmsley 2013-01-22 2:27 ` Paul Walmsley 2013-01-22 2:27 ` Paul Walmsley 2013-02-06 23:21 ` Paul Walmsley 2013-02-06 23:21 ` Paul Walmsley 2013-02-07 9:47 ` Matthieu CASTET 2013-02-07 9:47 ` Matthieu CASTET 2013-03-01 14:02 ` Matthieu CASTET 2013-03-01 14:02 ` Matthieu CASTET 2013-04-02 18:28 ` Paul Walmsley 2013-04-02 18:28 ` Paul Walmsley
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