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| author | Chuanxiao Dong <chuanxiao.dong@intel.com> | 2010-08-11 17:53:29 +0800 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-08-12 11:10:39 +0100 |
| commit | 628bfd4164502fa531b6d284cb6a18e337ec3f20 (patch) | |
| tree | 7b41a8e5fc648fa6374273f311bc3d7cfdeaf408 | |
| parent | f0bc0c778fe12e43658193fae975fc5762e98773 (diff) | |
| download | linux-628bfd4164502fa531b6d284cb6a18e337ec3f20.tar.gz linux-628bfd4164502fa531b6d284cb6a18e337ec3f20.tar.bz2 linux-628bfd4164502fa531b6d284cb6a18e337ec3f20.zip | |
nand/denali: use cpu_relax() while waiting for hardware interrupt
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/mtd/nand/denali.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index 975a89351f97..5f7c8c8b8b67 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -211,9 +211,9 @@ static uint16_t denali_nand_reset(struct denali_nand_info *denali) iowrite32(device_reset_banks[i], denali->flash_reg + DEVICE_RESET); while (!(ioread32(denali->flash_reg + - intr_status_addresses[i]) & + intr_status_addresses[i]) & (reset_complete[i] | operation_timeout[i]))) - ; + cpu_relax(); if (ioread32(denali->flash_reg + intr_status_addresses[i]) & operation_timeout[i]) dev_dbg(&denali->dev->dev, |