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authorRoman Tereshonkov <roman.tereshonkov@nokia.com>2010-11-03 12:55:20 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-12-03 16:28:13 +0000
commitd19d7b46d2b4936be14cfeef779ffeb76cf7b757 (patch)
treeab7aa8ebecf9a4375647dc971d6f09d89c21e9bd /drivers/mtd
parent3e3198f1adda8e0fbd499bde806781237d6c841f (diff)
downloadop-kernel-dev-d19d7b46d2b4936be14cfeef779ffeb76cf7b757.zip
op-kernel-dev-d19d7b46d2b4936be14cfeef779ffeb76cf7b757.tar.gz
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')
-rw-r--r--drivers/mtd/onenand/omap2.c12
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;
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