wdt: nuvoton: Fix reset/expire function error
Fix npcm845 watchdog halt for reset function and expire function.
Reset function is restart wdt.
Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/watchdog/npcm_wdt.c b/drivers/watchdog/npcm_wdt.c
index e56aa0e..57b6121 100644
--- a/drivers/watchdog/npcm_wdt.c
+++ b/drivers/watchdog/npcm_wdt.c
@@ -69,15 +69,21 @@
static int npcm_wdt_reset(struct udevice *dev)
{
struct npcm_wdt_priv *priv = dev_get_priv(dev);
+ u32 val;
- writel(NPCM_WTR | NPCM_WTRE | NPCM_WTE, priv->regs);
+ val = readl(priv->regs);
+ writel(val | NPCM_WTR, priv->regs);
return 0;
}
static int npcm_wdt_expire_now(struct udevice *dev, ulong flags)
{
- return npcm_wdt_reset(dev);
+ struct npcm_wdt_priv *priv = dev_get_priv(dev);
+
+ writel(NPCM_WTR | NPCM_WTRE | NPCM_WTE, priv->regs);
+
+ return 0;
}
static int npcm_wdt_of_to_plat(struct udevice *dev)