WTCNT
__raw_writew((WTCNT_HIGH << 8) | (__u16)val, WTCNT);
# define WTCNT_R WTCNT
__raw_writel((WTCNT_HIGH << 24) | (__u32)val, WTCNT);
#define WTCNT_R (WTCNT + 1)
#define WTST WTCNT
writew(WTCNT_MAGIC | priv->count, priv->base + WTCNT);
writew(WTCNT_MAGIC | 255, priv->base + WTCNT);
writew(WTCNT_MAGIC | priv->count, priv->base + WTCNT);