MC_RELEASE
outw( MC_RELEASE, ioaddr + MMU_CMD );
outw(MC_RELEASE, ioaddr + MMU_CMD);
outw(MC_RELEASE, ioaddr + MMU_CMD);
SMC_SET_MMU_CMD(lp, MC_RELEASE);
SMC_SET_MMU_CMD(lp, MC_RELEASE);
SMC_SET_MMU_CMD(lp, MC_RELEASE);