TIMER_CNTVAL_LO_REG
return ~readl(cs->base + TIMER_CNTVAL_LO_REG(1));
u32 old = readl(ce->base + TIMER_CNTVAL_LO_REG(1));
while ((old - readl(ce->base + TIMER_CNTVAL_LO_REG(1))) < TIMER_SYNC_TICKS)