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| author | Roman Tereshonkov <roman.tereshonkov@nokia.com> | 2010-11-03 12:55:20 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-12-03 16:28:13 +0000 |
| commit | d19d7b46d2b4936be14cfeef779ffeb76cf7b757 (patch) | |
| tree | ab7aa8ebecf9a4375647dc971d6f09d89c21e9bd /drivers/mtd/onenand/omap2.c | |
| parent | 3e3198f1adda8e0fbd499bde806781237d6c841f (diff) | |
| download | kernel_samsung_smdk4412-d19d7b46d2b4936be14cfeef779ffeb76cf7b757.zip kernel_samsung_smdk4412-d19d7b46d2b4936be14cfeef779ffeb76cf7b757.tar.gz kernel_samsung_smdk4412-d19d7b46d2b4936be14cfeef779ffeb76cf7b757.tar.bz2 | |
mtd: onenand: fix omap2 code to handle cache program feature
Some fixes are introduced into omap2 code to handle errors when
cache program feature is used.
Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/onenand/omap2.c')
| -rw-r--r-- | drivers/mtd/onenand/omap2.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 9f322f1..da25a90 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -108,8 +108,9 @@ static void wait_warn(char *msg, int state, unsigned int ctrl, static int omap2_onenand_wait(struct mtd_info *mtd, int state) { struct omap2_onenand *c = container_of(mtd, struct omap2_onenand, mtd); + struct onenand_chip *this = mtd->priv; unsigned int intr = 0; - unsigned int ctrl; + unsigned int ctrl, ctrl_mask; unsigned long timeout; u32 syscfg; @@ -180,7 +181,8 @@ retry: if (result == 0) { /* Timeout after 20ms */ ctrl = read_reg(c, ONENAND_REG_CTRL_STATUS); - if (ctrl & ONENAND_CTRL_ONGO) { + if (ctrl & ONENAND_CTRL_ONGO && + !this->ongoing) { /* * The operation seems to be still going * so give it some more time. @@ -269,7 +271,11 @@ retry: return -EIO; } - if (ctrl & 0xFE9F) + ctrl_mask = 0xFE9F; + if (this->ongoing) + ctrl_mask &= ~0x8000; + + if (ctrl & ctrl_mask) wait_warn("unexpected controller status", state, ctrl, intr); return 0; |