PM_RSTC
val = readl_relaxed(wdt->base + PM_RSTC);
writel_relaxed(val, wdt->base + PM_RSTC);
cur = readl(wdt->base + PM_RSTC);
cur = readl_relaxed(wdt->base + PM_RSTC);
PM_RSTC_WRCFG_FULL_RESET, wdt->base + PM_RSTC);
writel_relaxed(PM_PASSWORD | PM_RSTC_RESET, wdt->base + PM_RSTC);