SPRD_WDT_CTRL
val = readl_relaxed(wdt->base + SPRD_WDT_CTRL);
writel_relaxed(val, wdt->base + SPRD_WDT_CTRL);
writel_relaxed(0x0, wdt->base + SPRD_WDT_CTRL);
val = readl_relaxed(wdt->base + SPRD_WDT_CTRL);
writel_relaxed(val, wdt->base + SPRD_WDT_CTRL);
val = readl_relaxed(wdt->base + SPRD_WDT_CTRL);
writel_relaxed(val, wdt->base + SPRD_WDT_CTRL);