EFCH_PM_DECODEEN
val = efch_read_pm_reg8(addr, EFCH_PM_DECODEEN);
efch_update_pm_reg8(addr, EFCH_PM_DECODEEN, 0xff,
val = efch_read_pm_reg8(addr, EFCH_PM_DECODEEN);
val = sp5100_tco_read_pm_reg8(EFCH_PM_DECODEEN);