diff options
Diffstat (limited to 'drivers/watchdog/mtk_wdt.c')
| -rw-r--r-- | drivers/watchdog/mtk_wdt.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c index a7d4c7a3b8..dafd2b56a8 100644 --- a/drivers/watchdog/mtk_wdt.c +++ b/drivers/watchdog/mtk_wdt.c @@ -70,9 +70,12 @@ static int mtk_wdt_expire_now(struct udevice *dev, ulong flags) return 0; } -static void mtk_wdt_set_timeout(struct udevice *dev, unsigned int timeout_ms) +static void mtk_wdt_set_timeout(struct udevice *dev, u64 timeout_ms) { struct mtk_wdt_priv *priv = dev_get_priv(dev); + u64 timeout_us; + u32 timeout_cc; + u32 length; /* * One WDT_LENGTH count is 512 ticks of the wdt clock @@ -88,21 +91,25 @@ static void mtk_wdt_set_timeout(struct udevice *dev, unsigned int timeout_ms) * The MediaTek docs lack details to know if this is the case here. * So we enforce a minimum of 1 to guarantee operation. */ - if(timeout_ms > 15984) timeout_ms = 15984; - u64 timeout_us = timeout_ms * 1000; - u32 timeout_cc = (u32) ( (15624 + timeout_us) / 15625 ); - if(timeout_cc == 0) timeout_cc = 1; - u32 length = WDT_LENGTH_TIMEOUT(timeout_cc) | WDT_LENGTH_KEY; + if (timeout_ms > 15984) + timeout_ms = 15984; + + timeout_us = timeout_ms * 1000; + timeout_cc = (15624 + timeout_us) / 15625; + if (timeout_cc == 0) + timeout_cc = 1; + + length = WDT_LENGTH_TIMEOUT(timeout_cc) | WDT_LENGTH_KEY; writel(length, priv->base + MTK_WDT_LENGTH); } -static int mtk_wdt_start(struct udevice *dev, u64 timeout, ulong flags) +static int mtk_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags) { struct mtk_wdt_priv *priv = dev_get_priv(dev); - mtk_wdt_set_timeout(dev, timeout); + mtk_wdt_set_timeout(dev, timeout_ms); - mtk_wdt_reset(dev); + mtk_wdt_reset(dev); /* Enable watchdog reset signal */ setbits_le32(priv->base + MTK_WDT_MODE, |