diff options
| -rw-r--r-- | drivers/watchdog/ulp_wdog.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/watchdog/ulp_wdog.c b/drivers/watchdog/ulp_wdog.c index 6f63b11b9ff..490a2c94ecb 100644 --- a/drivers/watchdog/ulp_wdog.c +++ b/drivers/watchdog/ulp_wdog.c @@ -52,8 +52,10 @@ void hw_watchdog_reset(void) { struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE_ADDR; - writel(REFRESH_WORD0, &wdog->cnt); - writel(REFRESH_WORD1, &wdog->cnt); + dmb(); + __raw_writel(REFRESH_WORD0, &wdog->cnt); + __raw_writel(REFRESH_WORD1, &wdog->cnt); + dmb(); } void hw_watchdog_init(void) @@ -61,8 +63,10 @@ void hw_watchdog_init(void) u8 val; struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE_ADDR; - writel(UNLOCK_WORD0, &wdog->cnt); - writel(UNLOCK_WORD1, &wdog->cnt); + dmb(); + __raw_writel(UNLOCK_WORD0, &wdog->cnt); + __raw_writel(UNLOCK_WORD1, &wdog->cnt); + dmb(); val = readb(&wdog->cs2); val |= WDGCS2_FLG; @@ -81,8 +85,10 @@ void reset_cpu(void) { struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE_ADDR; - writel(UNLOCK_WORD0, &wdog->cnt); - writel(UNLOCK_WORD1, &wdog->cnt); + dmb(); + __raw_writel(UNLOCK_WORD0, &wdog->cnt); + __raw_writel(UNLOCK_WORD1, &wdog->cnt); + dmb(); hw_watchdog_set_timeout(5); /* 5ms timeout */ writel(0, &wdog->win); |