ENABLE_ADVANCED_DRIVER_MODEL, 1);
        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
                            SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
-       tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
                            MTYPE, MTYPE_UC);/* XXX for emulation. */
        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ATC_EN, 1);
 
                            ENABLE_ADVANCED_DRIVER_MODEL, 1);
        tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
                            SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
-       tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
        tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
                            MTYPE, MTYPE_UC); /* UC, uncached */
 
 
                            ENABLE_ADVANCED_DRIVER_MODEL, 1);
        tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
                            SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
-       tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
        tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
                            MTYPE, MTYPE_UC); /* UC, uncached */
 
 
                            ENABLE_ADVANCED_DRIVER_MODEL, 1);
        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
                            SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
-       tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
                            MTYPE, MTYPE_UC);/* XXX for emulation. */
        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ATC_EN, 1);
 
                            ENABLE_ADVANCED_DRIVER_MODEL, 1);
        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
                            SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
-       tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
                            MTYPE, MTYPE_UC);/* XXX for emulation. */
        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ATC_EN, 1);
 
                            ENABLE_ADVANCED_DRIVER_MODEL, 1);
        tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
                            SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
-       tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
        tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
                            MTYPE, MTYPE_UC); /* UC, uncached */
 
 
                            ENABLE_ADVANCED_DRIVER_MODEL, 1);
        tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
                            SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
-       tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
        tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
                            MTYPE, MTYPE_UC); /* UC, uncached */
 
 
                            ENABLE_ADVANCED_DRIVER_MODEL, 1);
        tmp = REG_SET_FIELD(tmp, VMSHAREDVC0_MC_VM_MX_L1_TLB_CNTL,
                            SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
-       tmp = REG_SET_FIELD(tmp, VMSHAREDVC0_MC_VM_MX_L1_TLB_CNTL,
-                           ECO_BITS, 0);
        tmp = REG_SET_FIELD(tmp, VMSHAREDVC0_MC_VM_MX_L1_TLB_CNTL,
                            MTYPE, MTYPE_UC);/* XXX for emulation. */
        tmp = REG_SET_FIELD(tmp, VMSHAREDVC0_MC_VM_MX_L1_TLB_CNTL,