XWWDT_ESR_OFFSET
control_status_reg = ioread32(xdev->base + XWWDT_ESR_OFFSET);
iowrite32(control_status_reg, xdev->base + XWWDT_ESR_OFFSET);
iowrite32(~(u32)XWWDT_ESR_WEN_MASK, xdev->base + XWWDT_ESR_OFFSET);
control_status_reg = ioread32(xdev->base + XWWDT_ESR_OFFSET);
iowrite32(control_status_reg, xdev->base + XWWDT_ESR_OFFSET);