diff options
Diffstat (limited to 'drivers/spi/spi-sprd-adi.c')
| -rw-r--r-- | drivers/spi/spi-sprd-adi.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/spi/spi-sprd-adi.c b/drivers/spi/spi-sprd-adi.c index df5960bddfe6..e41976010dc4 100644 --- a/drivers/spi/spi-sprd-adi.c +++ b/drivers/spi/spi-sprd-adi.c @@ -358,15 +358,18 @@ static int sprd_adi_restart_handler(struct notifier_block *this, sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOCK, WDG_UNLOCK_KEY); /* Load the watchdog timeout value, 50ms is always enough. */ + sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOAD_HIGH, 0); sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOAD_LOW, WDG_LOAD_VAL & WDG_LOAD_MASK); - sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOAD_HIGH, 0); /* Start the watchdog to reset system */ sprd_adi_read(sadi, sadi->slave_pbase + REG_WDG_CTRL, &val); val |= BIT_WDG_RUN | BIT_WDG_RST; sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_CTRL, val); + /* Lock the watchdog */ + sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOCK, ~WDG_UNLOCK_KEY); + mdelay(1000); dev_emerg(sadi->dev, "Unable to restart system\n"); |