CPU_CLOCK
writel(reg & ~CPU_CLOCK(cpu),
writel(reg | CPU_CLOCK(cpu),
writel(CPU_CLOCK(cpu),
writel(reg | CPU_CLOCK(cpu),
writel((readl(otp->base[OTPRX] + OTP_CONTROL_2) & OTP_RD_PERIOD_MASK) | CPU_CLOCK,