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nand/denali: use cpu_relax() while waiting for hardware interrupt

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Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Chuanxiao Dong 2010-08-11 17:53:29 +08:00 committed by David Woodhouse
parent f0bc0c778f
commit 628bfd4164
1 changed files with 2 additions and 2 deletions
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4
drivers/mtd/nand/denali.c
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@ -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,