KAPWR_KEY
out_be32(&mpc8xx_immr->im_sitk.sitk_tbscrk, ~KAPWR_KEY);
out_be32(&mpc8xx_immr->im_sitk.sitk_rtcsck, ~KAPWR_KEY);
out_be32(&mpc8xx_immr->im_sitk.sitk_tbk, ~KAPWR_KEY);
out_be32(&mpc8xx_immr->im_sitk.sitk_tbscrk, KAPWR_KEY);
out_be32(&mpc8xx_immr->im_sitk.sitk_rtcsck, KAPWR_KEY);
out_be32(&mpc8xx_immr->im_sitk.sitk_tbk, KAPWR_KEY);
out_be32(&mpc8xx_immr->im_sitk.sitk_rtck, KAPWR_KEY);
out_be32(&mpc8xx_immr->im_sitk.sitk_rtck, ~KAPWR_KEY);
out_be32(&mpc8xx_immr->im_clkrstk.cark_sccrk, ~KAPWR_KEY);
out_be32(&mpc8xx_immr->im_clkrstk.cark_sccrk, KAPWR_KEY);