ALX_PMCTRL
pmctrl = alx_read_mem32(hw, ALX_PMCTRL);
alx_write_mem32(hw, ALX_PMCTRL,
alx_write_mem32(hw, ALX_PMCTRL, pmctrl);
pmctrl = alx_read_mem32(hw, ALX_PMCTRL);
alx_write_mem32(hw, ALX_PMCTRL, pmctrl);