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| author | Vipin Kumar <vipin.kumar@st.com> | 2012-03-14 11:47:16 +0530 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 00:59:49 +0100 |
| commit | 712c4add03277197168210bb628b8273e36adf76 (patch) | |
| tree | 5242f3ea2ad38565e3f975ae84119eeb502bf392 /drivers/mtd | |
| parent | 82b9dbe2e0f6870bf385b759b91e403b62a60c5e (diff) | |
| download | linux-712c4add03277197168210bb628b8273e36adf76.tar.gz linux-712c4add03277197168210bb628b8273e36adf76.tar.bz2 linux-712c4add03277197168210bb628b8273e36adf76.zip | |
mtd: nand/fsmc: Use dev_err to report error scenario
fsmc controller takes time to calculate the bch8 codes and the error offsets.
The calculate logic checks for completion upto a timeout. This patch adds a
error print when this timer expires and the ecc or error offsets are not yet
calculated.
Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Reviewed-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/fsmc_nand.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 56b661972122..c41f45faa09e 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -296,6 +296,7 @@ struct fsmc_nand_data { struct fsmc_eccplace *ecc_place; unsigned int bank; + struct device *dev; struct clk *clk; struct fsmc_nand_timings *dev_timings; @@ -457,6 +458,11 @@ static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data, cond_resched(); } while (!time_after_eq(jiffies, deadline)); + if (time_after_eq(jiffies, deadline)) { + dev_err(host->dev, "calculate ecc timed out\n"); + return -ETIMEDOUT; + } + ecc_tmp = readl(®s->bank_regs[bank].ecc1); ecc[0] = (uint8_t) (ecc_tmp >> 0); ecc[1] = (uint8_t) (ecc_tmp >> 8); @@ -793,6 +799,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) host->select_chip = pdata->select_bank; host->partitions = pdata->partitions; host->nr_partitions = pdata->nr_partitions; + host->dev = &pdev->dev; host->dev_timings = pdata->nand_timings; regs = host->regs_va; |