BP_PMCTRL_PSTOPO
#define BM_PMCTRL_PSTOPO (3 << BP_PMCTRL_PSTOPO)
val |= PSTOPO_PSTOP3 << BP_PMCTRL_PSTOPO;
val |= PSTOPO_PSTOP2 << BP_PMCTRL_PSTOPO;
val |= PSTOPO_PSTOP1 << BP_PMCTRL_PSTOPO;