CG_ECLK_CNTL
tmp = RREG32_SMC(CG_ECLK_CNTL);
WREG32_SMC(CG_ECLK_CNTL, tmp);
WREG32_P(CG_ECLK_CNTL, dividers.post_div, ~(ECLK_DIR_CNTL_EN|ECLK_DIVIDER_MASK));