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-rw-r--r--resources/utilities/ich9deblob/ich9desc.c217
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diff --git a/resources/utilities/ich9deblob/ich9desc.c b/resources/utilities/ich9deblob/ich9desc.c
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--- a/resources/utilities/ich9deblob/ich9desc.c
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-/*
- * ich9desc.c
- * This file is part of the ich9deblob utility from the libreboot project
- *
- * Copyright (C) 2014 Steve Shenton <sgsit@libreboot.org>
- * Francis Rowe <info@gluglug.org.uk>
- *
- * 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/>.
- */
-
-// Purpose: provide struct representing descriptor region.
-// Map actual buffers of this regions, directly to instances of these
-// structs. This makes working with descriptor really easy.
-
-// bit fields used, corresponding to datasheet. See links to datasheets
-// and documentation in ich9deblob.c
-
-struct FLVALSIG{
- unsigned int signature;
-};
-
-struct FLMAP0 {
- // least signicant bits
- unsigned char FCBA : 8;
- unsigned char NC : 2;
- unsigned char reserved1 : 6;
- // ^^^^ unnamed members like these represent unused bits (per datasheet).
- // the same applies for all structs in this file.
- unsigned char FRBA : 8;
- unsigned char NR : 3;
- unsigned char reserved2 : 5;
- // most significant bits.
-
- // the datasheet lists msb's first and lsb's last, in each table.
- // meanwhile, x86 gcc treats the members at the top of the struct as lsb's
- // and at the bottom of the struct, the members there are msb's. The same
- // fact applies to all the other structs below.
-
- // non-x86 (and/or non-gcc) is untested
- // little endian assumed
-};
-
-struct FLMAP1 {
- unsigned char FMBA : 8;
- unsigned char NM : 3;
- unsigned char reserved : 5;
- unsigned char FISBA : 8;
- unsigned char ISL : 8;
-};
-
-struct FLMAP2 {
- unsigned char FMSBA : 8;
- unsigned char MSL : 8;
- unsigned short reserved : 16;
-};
-
-struct FLMAPS {
- struct FLMAP0 flMap0;
- struct FLMAP1 flMap1;
- struct FLMAP2 flMap2;
-};
-
-struct FLCOMP {
- unsigned char component1Density : 3;
- unsigned char component2Density : 3;
- unsigned char reserved1 : 2;
- unsigned char reserved2 : 8;
- unsigned char reserved3 : 1;
- unsigned char readClockFrequency : 3;
- unsigned char fastReadSupport : 1;
- unsigned char fastreadClockFrequency : 3;
- unsigned char writeEraseClockFrequency : 3;
- unsigned char readStatusClockFrequency : 3;
- unsigned char reserved4 : 2;
-};
-
-struct COMPONENTSECTIONRECORD {
- struct FLCOMP flcomp;
- unsigned int flill;
- unsigned int flpb;
- unsigned char padding[36];
-};
-
-struct FLREG {
- unsigned short BASE : 13;
- unsigned short reserved1 : 3;
- unsigned short LIMIT : 13;
- unsigned short reserved2 : 3;
-};
-
-struct REGIONSECTIONRECORD {
- struct FLREG flReg0; // Descriptor
- struct FLREG flReg1; // BIOS
- struct FLREG flReg2; // ME
- struct FLREG flReg3; // Gbe
- struct FLREG flReg4; // Platform
- unsigned char padding[12];
-};
-
-struct FLMSTR {
- unsigned short requesterId : 16;
- unsigned char fdRegionReadAccess : 1;
- unsigned char biosRegionReadAccess : 1;
- unsigned char meRegionReadAccess : 1;
- unsigned char gbeRegionReadAccess : 1;
- unsigned char pdRegionReadAccess : 1;
- unsigned char reserved1 : 3;
- unsigned char fdRegionWriteAccess : 1;
- unsigned char biosRegionWriteAccess : 1;
- unsigned char meRegionWriteAccess : 1;
- unsigned char gbeRegionWriteAccess : 1;
- unsigned char pdRegionWriteAccess : 1;
- unsigned char reserved2 : 3;
-};
-
-
-struct MASTERACCESSSECTIONRECORD {
- struct FLMSTR flMstr1;
- struct FLMSTR flMstr2;
- struct FLMSTR flMstr3;
- unsigned char padding[148];
-};
-
-struct ICHSTRAP0 {
- // todo: add MeSmBus2Sel (boring setting)
- unsigned char meDisable : 1; // If true, ME is disabled.
- unsigned char reserved1 : 6;
- unsigned char tcoMode : 1; // TCO Mode: (Legacy,TCO Mode) The TCO Mode, along with the BMCMODE strap, determines the behavior of the IAMT SmBus controller.
- unsigned char smBusAddress : 7; // The ME SmBus 7-bit address.
- unsigned char bmcMode : 1; // BMC mode: If true, device is in BMC mode. If Intel(R) AMT or ASF using Intel integrated LAN then this should be false.
- unsigned char tripPointSelect : 1; // Trip Point Select: false the NJCLK input buffer is matched to 3.3v signal from the external PHY device, true is matched to 1.8v.
- unsigned char reserved2 : 2;
- unsigned char integratedGbe : 1; // Integrated GbE or PCI Express select: (PCI Express,,Integrated GbE) Defines what PCIe Port 6 is used for.
- unsigned char lanPhy : 1; // LANPHYPC_GP12_SEL: Set to 0 for GP12 to be used as GPIO (General Purpose Input/Output), or 1 for GP12 to be used for native mode as LAN_PHYPC for 82566 LCD device
- unsigned char reserved3 : 3;
- unsigned char dmiRequesterId : 1; // DMI requestor ID security check disable: The primary purpose of this strap is to support server environments with multiple CPUs that each have a different RequesterID that can access the Flash.
- unsigned char smBus2Address : 7; // The ME SmBus 2 7-bit address.
-};
-
-struct ICHSTRAP1 {
- unsigned char northMlink : 1; // North MLink Dynamic Clock Gate Disable : Sets the default value for the South MLink Dynamic Clock Gate Enable registers.
- unsigned char southMlink : 1; // South MLink Dynamic Clock Gate Enable : Sets the default value for the South MLink Dynamic Clock Gate Enable registers.
- unsigned char meSmbus : 1; // ME SmBus Dynamic Clock Gate Enable : Sets the default value for the ME SMBus Dynamic Clock Gate Enable for both the ME SmBus controllers.
- unsigned char sstDynamic : 1; // SST Dynamic Clock Gate Enable : Sets the default value for the SST Clock Gate Enable registers.
- unsigned char reserved1 : 4;
- unsigned char northMlink2 : 1; // North MLink 2 Non-Posted Enable : 'true':North MLink supports two downstream non-posted requests. 'false':North MLink supports one downstream non-posted requests.
- unsigned char reserved2 : 7;
- unsigned short reserved3 : 16;
-};
-
-
-struct ICHSTRAPSRECORD {
- struct ICHSTRAP0 ichStrap0;
- struct ICHSTRAP1 ichStrap1;
- unsigned char padding[248];
-};
-
-struct MCHSTRAP0 {
- unsigned char meDisable : 1; // If true, ME is disabled.
- unsigned char meBootFromFlash : 1; // ME boot from Flash - guessed location
- unsigned char tpmDisable : 1; // iTPM Disable : When set true, iTPM Host Interface is disabled. When set false (default), iTPM is enabled.
- unsigned char reserved1 : 3;
- unsigned char spiFingerprint : 1; // SPI Fingerprint Sensor Present: Indicates if an SPI Fingerprint sensor is present at CS#1.
- unsigned char meAlternateDisable : 1; // ME Alternate Disable: Setting this bit allows ME to perform critical chipset functions but prevents loading of any ME FW applications.
- unsigned char reserved2 : 8;
- unsigned short reserved3 : 16;
-};
-
-struct MCHSTRAPSRECORD {
- struct MCHSTRAP0 mchStrap0;
- unsigned char padding[3292];
-};
-
-struct MEVSCCTABLERECORD {
- unsigned int jid0;
- unsigned int vscc0;
- unsigned int jid1;
- unsigned int vscc1;
- unsigned int jid2;
- unsigned int vscc2;
- unsigned char padding[4];
-};
-
-struct DESCRIPTORMAP2RECORD {
- unsigned char meVsccTableBaseAddress : 8;
- unsigned char meVsccTableLength : 8;
- unsigned short reserved : 16;
-};
-
-struct OEMSECTIONRECORD {
- unsigned char magicString[8];
- unsigned char padding[248];
-};
-
-struct DESCRIPTORREGIONRECORD {
- struct FLVALSIG flValSig;
- struct FLMAPS flMaps;
- struct COMPONENTSECTIONRECORD componentSection;
- struct REGIONSECTIONRECORD regionSection;
- struct MASTERACCESSSECTIONRECORD masterAccessSection;
- struct ICHSTRAPSRECORD ichStraps;
- struct MCHSTRAPSRECORD mchStraps;
- struct MEVSCCTABLERECORD meVsccTable;
- struct DESCRIPTORMAP2RECORD descriptor2Map;
- struct OEMSECTIONRECORD oemSection;
-};