/* * Copyright (C) 2014, 2015 Leah Rowe <info@minifree.org> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "mkdescriptor.h" /* Generate a 4KiB Descriptor struct, with default values. */ /* Read ../descriptor/descriptor.h for an explanation of the default values used here */ struct DESCRIPTORREGIONRECORD generatedDescriptorStruct(unsigned int romSize, int hasGbe) { int i; struct DESCRIPTORREGIONRECORD descriptorStruct; /* Flash Valid Signature Register */ descriptorStruct.flValSig.signature = 0x0ff0a55a; /* Flash Map Registers */ /* FLMAP0 */ descriptorStruct.flMaps.flMap0.FCBA = 0x01; descriptorStruct.flMaps.flMap0.NC = 0x0; descriptorStruct.flMaps.flMap0.reserved1 = 0x00; descriptorStruct.flMaps.flMap0.FRBA = 0x04; descriptorStruct.flMaps.flMap0.NR = hasGbe ? 0x2 : 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.flMaps.flMap0.reserved2 = 0x00; /* FLMAP1 */ descriptorStruct.flMaps.flMap1.FMBA = 0x06; descriptorStruct.flMaps.flMap1.NM = 0x2; descriptorStruct.flMaps.flMap1.reserved = 0x00; descriptorStruct.flMaps.flMap1.FISBA = 0x10; descriptorStruct.flMaps.flMap1.ISL = 0x02; /* FLMAP2 */ descriptorStruct.flMaps.flMap2.FMSBA = 0x20; descriptorStruct.flMaps.flMap2.MSL = 0x01; descriptorStruct.flMaps.flMap2.reserved = 0x0000; /* Component Section Record */ /* FLCOMP */ descriptorStruct.componentSection.flcomp.component1Density = componentDensity(romSize); descriptorStruct.componentSection.flcomp.component2Density = componentDensity(romSize); descriptorStruct.componentSection.flcomp.reserved1 = 0x0; descriptorStruct.componentSection.flcomp.reserved2 = 0x00; descriptorStruct.componentSection.flcomp.reserved3 = 0x0; descriptorStruct.componentSection.flcomp.readClockFrequency = 0x0; descriptorStruct.componentSection.flcomp.fastReadSupport = 0x1; descriptorStruct.componentSection.flcomp.fastreadClockFrequency = 0x1; descriptorStruct.componentSection.flcomp.writeEraseClockFrequency = 0x0; descriptorStruct.componentSection.flcomp.readStatusClockFrequency = 0x0; descriptorStruct.componentSection.flcomp.reserved4 = 0x0; /* FLILL */ descriptorStruct.componentSection.flill = 0x00000000; /* FLPB */ descriptorStruct.componentSection.flpb = 0x00000000; /* Padding */ for (i = 0; i < 36; i++) { descriptorStruct.componentSection.padding[i] = 0xFF; } /* Flash Descriptor Region Section */ /* FLREG0 (Descriptor) */ descriptorStruct.regionSection.flReg0.BASE = 0x0000; descriptorStruct.regionSection.flReg0.reserved1 = 0x0; descriptorStruct.regionSection.flReg0.LIMIT = 0x0000; descriptorStruct.regionSection.flReg0.reserved2 = 0x0; /* FLREG1 (BIOS) */ descriptorStruct.regionSection.flReg1.BASE = (DESCRIPTORREGIONSIZE + (hasGbe ? GBEREGIONSIZE_8K : 0)) >> FLREGIONBITSHIFT; /* see ../descriptor/descriptor.c */ descriptorStruct.regionSection.flReg1.reserved1 = 0x0; descriptorStruct.regionSection.flReg1.LIMIT = ((romSize >> FLREGIONBITSHIFT) - 1); /* see ../descriptor/descriptor.c */ descriptorStruct.regionSection.flReg1.reserved2 = 0x0; /* FLREG2 (ME) */ descriptorStruct.regionSection.flReg2.BASE = 0x1fff; /* see ../descriptor/descriptor.c */ descriptorStruct.regionSection.flReg2.reserved1 = 0x0; descriptorStruct.regionSection.flReg2.LIMIT = 0x0000; /* see ../descriptor/descriptor.c */ descriptorStruct.regionSection.flReg2.reserved2 = 0x0; /* FLREG3 (Gbe) */ descriptorStruct.regionSection.flReg3.BASE = hasGbe ? (DESCRIPTORREGIONSIZE >> FLREGIONBITSHIFT) : 0x1fff; /* see ../descriptor/descriptor.c */ descriptorStruct.regionSection.flReg3.reserved1 = 0x0; descriptorStruct.regionSection.flReg3.LIMIT = hasGbe ? (GBEREGIONSIZE_8K >> FLREGIONBITSHIFT) : 0x0000; /* see ../descriptor/descriptor.c */ descriptorStruct.regionSection.flReg3.reserved2 = 0x0; /* FLREG4 (Platform) */ descriptorStruct.regionSection.flReg4.BASE = 0x1fff; /* see ../descriptor/descriptor.c */ descriptorStruct.regionSection.flReg4.reserved1 = 0x0; descriptorStruct.regionSection.flReg4.LIMIT = 0x0000; /* see ../descriptor/descriptor.c */ descriptorStruct.regionSection.flReg4.reserved2 = 0x0; /* Padding */ for (i = 0; i < 12; i++) { descriptorStruct.regionSection.padding[i] = 0xFF; } /* Master Access Section */ /* FLMSTR1 (Host CPU / BIOS) */ descriptorStruct.masterAccessSection.flMstr1.requesterId = 0x0000; descriptorStruct.masterAccessSection.flMstr1.fdRegionReadAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.biosRegionReadAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.meRegionReadAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.gbeRegionReadAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.pdRegionReadAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.reserved1 = 0x0; descriptorStruct.masterAccessSection.flMstr1.fdRegionWriteAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.biosRegionWriteAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.meRegionWriteAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.gbeRegionWriteAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.pdRegionWriteAccess = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr1.reserved2 = 0x0; /* FLMSTR2 (ME) */ descriptorStruct.masterAccessSection.flMstr2.requesterId = 0x0000; descriptorStruct.masterAccessSection.flMstr2.fdRegionReadAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.biosRegionReadAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.meRegionReadAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.gbeRegionReadAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.pdRegionReadAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.reserved1 = 0x0; descriptorStruct.masterAccessSection.flMstr2.fdRegionWriteAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.biosRegionWriteAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.meRegionWriteAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.gbeRegionWriteAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.pdRegionWriteAccess = 0x0; /* see ../descriptor/descriptor.c */ descriptorStruct.masterAccessSection.flMstr2.reserved2 = 0x0; /* FLMSTR3 (Gbe) */ descriptorStruct.masterAccessSection.flMstr3.requesterId = 0x0218; descriptorStruct.masterAccessSection.flMstr3.fdRegionReadAccess = 0x0; descriptorStruct.masterAccessSection.flMstr3.biosRegionReadAccess = 0x0; descriptorStruct.masterAccessSection.flMstr3.meRegionReadAccess = 0x0; descriptorStruct.masterAccessSection.flMstr3.gbeRegionReadAccess = 0x1; descriptorStruct.masterAccessSection.flMstr3.pdRegionReadAccess = 0x0; descriptorStruct.masterAccessSection.flMstr3.reserved1 = 0x0; descriptorStruct.masterAccessSection.flMstr3.fdRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr3.biosRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr3.meRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr3.gbeRegionWriteAccess = 0x1; descriptorStruct.masterAccessSection.flMstr3.pdRegionWriteAccess = 0x0; descriptorStruct.masterAccessSection.flMstr3.reserved2 = 0x0; /* Padding */ for (i = 0; i < 148; i++) { descriptorStruct.masterAccessSection.padding[i] = 0xFF; } /* ICH straps */ /* ICHSTRAP0 */ descriptorStruct.ichStraps.ichStrap0.meDisable = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.ichStraps.ichStrap0.reserved1 = 0x04; descriptorStruct.ichStraps.ichStrap0.tcoMode = 0x1; descriptorStruct.ichStraps.ichStrap0.smBusAddress = 0x64; descriptorStruct.ichStraps.ichStrap0.bmcMode = 0x0; descriptorStruct.ichStraps.ichStrap0.tripPointSelect = 0x0; descriptorStruct.ichStraps.ichStrap0.reserved2 = 0x0; descriptorStruct.ichStraps.ichStrap0.integratedGbe = hasGbe ? 0x1 : 0x0; descriptorStruct.ichStraps.ichStrap0.lanPhy = hasGbe ? 0x1 : 0x0; descriptorStruct.ichStraps.ichStrap0.reserved3 = 0x0; descriptorStruct.ichStraps.ichStrap0.dmiRequesterId = 0x0; descriptorStruct.ichStraps.ichStrap0.smBus2Address = 0x00; /* ICHSTRAP1 */ descriptorStruct.ichStraps.ichStrap1.northMlink = 0x1; descriptorStruct.ichStraps.ichStrap1.southMlink = 0x1; descriptorStruct.ichStraps.ichStrap1.meSmbus = 0x1; descriptorStruct.ichStraps.ichStrap1.sstDynamic = 0x1; descriptorStruct.ichStraps.ichStrap1.reserved1 = 0x0; descriptorStruct.ichStraps.ichStrap1.northMlink2 = 0x1; descriptorStruct.ichStraps.ichStrap1.reserved2 = 0x00; descriptorStruct.ichStraps.ichStrap1.reserved3 = 0x0000; /* Padding */ for (i = 0; i < 248; i++) { descriptorStruct.ichStraps.padding[i] = 0xFF; } /* MCH straps */ /* MCHSTRAP0 */ descriptorStruct.mchStraps.mchStrap0.meDisable = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.mchStraps.mchStrap0.meBootFromFlash = 0x0; descriptorStruct.mchStraps.mchStrap0.tpmDisable = 0x1; /* see ../descriptor/descriptor.c */ descriptorStruct.mchStraps.mchStrap0.reserved1 = 0x7; descriptorStruct.mchStraps.mchStrap0.spiFingerprint = 0x1; descriptorStruct.mchStraps.mchStrap0.meAlternateDisable = 0x0; descriptorStruct.mchStraps.mchStrap0.reserved2 = 0xff; descriptorStruct.mchStraps.mchStrap0.reserved3 = 0xffff; /* Padding */ for (i = 0; i < 3292; i++) { descriptorStruct.mchStraps.padding[i] = 0xFF; } /* ME VSCC Table */ descriptorStruct.meVsccTable.jid0 = 0x001720c2; descriptorStruct.meVsccTable.vscc0 = 0x20052005; descriptorStruct.meVsccTable.jid1 = 0x001730ef; descriptorStruct.meVsccTable.vscc1 = 0x20052005; descriptorStruct.meVsccTable.jid2 = 0x0000481f; descriptorStruct.meVsccTable.vscc2 = 0x20152015; /* Padding */ for (i = 0; i < 4; i++) { descriptorStruct.meVsccTable.padding[i] = 0xFF; } /* Descriptor Map 2 Record */ descriptorStruct.descriptor2Map.meVsccTableBaseAddress = 0xee; descriptorStruct.descriptor2Map.meVsccTableLength = 0x06; descriptorStruct.descriptor2Map.reserved = 0x0000; /* OEM section */ /* see ../descriptor/descriptor.c */ /* Magic String (ascii characters) */ descriptorStruct.oemSection.magicString[0] = 0x4c; descriptorStruct.oemSection.magicString[1] = 0x49; descriptorStruct.oemSection.magicString[2] = 0x42; descriptorStruct.oemSection.magicString[3] = 0x45; descriptorStruct.oemSection.magicString[4] = 0x52; descriptorStruct.oemSection.magicString[5] = 0x41; descriptorStruct.oemSection.magicString[6] = 0x54; descriptorStruct.oemSection.magicString[7] = 0x45; /* Padding */ for (i = 0; i < 248; i++) { descriptorStruct.oemSection.padding[i] = 0xFF; } return descriptorStruct; }