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watchdog: ftwdt010: need to reset watchdog in ftwdt010_wdt_start()

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ftwdt010_wdt_start() has to call ftwdt010_wdt_reset() after setting-up
the timeout in the same fashion ftwdt010_wdt_expire_now() does it.

Without this patch the "wdt start <ms>" command does not actually start
the watchdog timer until the "wdt reset" command is executed.

Signed-off-by: Sergei Antonov <saproj@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Sergei Antonov 2023-07-30 20:14:16 +03:00 committed by Stefan Roese
parent 8ba4eae01d
commit 160984ed3a
1 changed files with 21 additions and 19 deletions
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40
drivers/watchdog/ftwdt010_wdt.c
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@ -25,8 +25,27 @@ struct ftwdt010_wdt_priv {
struct ftwdt010_wdt __iomem *regs;
};
static int ftwdt010_wdt_reset(struct udevice *dev)
{
struct ftwdt010_wdt_priv *priv = dev_get_priv(dev);
struct ftwdt010_wdt *wd = priv->regs;
debug("Reset WDT..\n");
/* clear control register */
writel(0, &wd->wdcr);
/* Write Magic number */
writel(FTWDT010_WDRESTART_MAGIC, &wd->wdrestart);
/* Enable WDT */
writel(FTWDT010_WDCR_RST | FTWDT010_WDCR_ENABLE, &wd->wdcr);
return 0;
}
/*
* Set the watchdog time interval.
* Set the watchdog time interval and start the timer.
* Counter is 32 bit.
*/
static int ftwdt010_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags)
@ -52,24 +71,7 @@ static int ftwdt010_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags)
writel(reg, &wd->wdload);
return 0;
}
static int ftwdt010_wdt_reset(struct udevice *dev)
{
struct ftwdt010_wdt_priv *priv = dev_get_priv(dev);
struct ftwdt010_wdt *wd = priv->regs;
/* clear control register */
writel(0, &wd->wdcr);
/* Write Magic number */
writel(FTWDT010_WDRESTART_MAGIC, &wd->wdrestart);
/* Enable WDT */
writel((FTWDT010_WDCR_RST | FTWDT010_WDCR_ENABLE), &wd->wdcr);
return 0;
return ftwdt010_wdt_reset(dev);
}
static int ftwdt010_wdt_stop(struct udevice *dev)