BGX_GMP_PCS_MISCX_CTL
misc_ctl = bgx_reg_read(bgx, lmac->lmacid, BGX_GMP_PCS_MISCX_CTL);
bgx_reg_write(bgx, lmac->lmacid, BGX_GMP_PCS_MISCX_CTL, misc_ctl);
cfg = bgx_reg_read(bgx, lmacid, BGX_GMP_PCS_MISCX_CTL);
bgx_reg_write(bgx, lmacid, BGX_GMP_PCS_MISCX_CTL, cfg);