KBC_CONTROL_0
val = readl(kbc->mmio + KBC_CONTROL_0);
writel(val, kbc->mmio + KBC_CONTROL_0);
writel(val, kbc->mmio + KBC_CONTROL_0);
val = readl(kbc->mmio + KBC_CONTROL_0);
writel(val, kbc->mmio + KBC_CONTROL_0);
val = readl(kbc->mmio + KBC_CONTROL_0);
writel(val, kbc->mmio + KBC_CONTROL_0);