SDR0_AHB_CFG_A2P_INCR4
v |= SDR0_AHB_CFG_A2P_INCR4;
ahbcfg |= SDR0_AHB_CFG_A2P_INCR4;
(reg | SDR0_AHB_CFG_A2P_INCR4) & ~SDR0_AHB_CFG_A2P_PROT2);