AR5312_WREV
val = ((OS_REG_READ(ah, (AR5312_RSTIMER_BASE - ((uint32_t) sh)) + AR5312_WREV)) >> AR5312_WREV_S) & AR5312_WREV_ID;
(AR5312_RSTIMER_BASE-((uint32_t) ah->ah_sh)) + AR5312_WREV))