diff options
Diffstat (limited to 'src/drivers/pc80/tpm/acpi/tpm.asl')
| -rw-r--r-- | src/drivers/pc80/tpm/acpi/tpm.asl | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/src/drivers/pc80/tpm/acpi/tpm.asl b/src/drivers/pc80/tpm/acpi/tpm.asl index 090bf4c820..e69de29bb2 100644 --- a/src/drivers/pc80/tpm/acpi/tpm.asl +++ b/src/drivers/pc80/tpm/acpi/tpm.asl @@ -1,219 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 Google Inc. - * - * 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; version 2 of the License. - * - * 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. - */ - -/* Trusted Platform Module */ - -#if CONFIG_LPC_TPM - -Device (TPM) -{ - Name (_HID, EISAID ("PNP0C31")) - Name (_CID, 0x310cd041) - Name (_UID, 1) - - OperationRegion (TREG, SystemMemory, - CONFIG_TPM_TIS_BASE_ADDRESS, 0x5000) - Field (TREG, ByteAcc, NoLock, Preserve) - { - /* TPM_INT_ENABLE_0 */ - Offset (0x0008), - , 3, - ITPL, 2, /* Interrupt type and polarity */ - - /* TPM_INT_VECTOR_0 */ - Offset (0x000C), - IVEC, 4, /* SERIRQ vector */ - - /* TPM_DID_VID */ - Offset (0x0f00), - DVID, 32, /* Device and vendor ID */ - } - - Method (_STA, 0) - { -#if !CONFIG_TPM_DEACTIVATE - If (LAnd (LGreater (DVID, 0), LLess (DVID, 0xffffffff))) { - Return (0xf) - } Else { - /* TPM module missing */ - Return (0x0) - } -#else - Return (0x0) -#endif - } - - Name (IBUF, ResourceTemplate () - { - /* Updated based on TPM interrupt for Locality 0 */ - Interrupt (ResourceConsumer, Edge, ActiveHigh, - Exclusive, , , TIRQ) { 0 } - }) - - Name (RBUF, ResourceTemplate () - { - IO (Decode16, 0x2e, 0x2e, 0x01, 0x02) - Memory32Fixed (ReadWrite, CONFIG_TPM_TIS_BASE_ADDRESS, 0x5000) - }) - - Method (_CRS, 0, Serialized) - { - CreateField (^IBUF, ^TIRQ._INT, 32, TVEC) - CreateBitField (^IBUF, ^TIRQ._HE, TTYP) - CreateBitField (^IBUF, ^TIRQ._LL, TPOL) - CreateBitField (^IBUF, ^TIRQ._SHR, TSHR) - - If (LGreater (CONFIG_TPM_PIRQ, 0)) { - /* - * PIRQ: Update interrupt vector with configured PIRQ - */ - Store (CONFIG_TPM_PIRQ, TVEC) - - /* Active-Low Level-Triggered Shared */ - Store (One, TPOL) - Store (Zero, TTYP) - Store (One, TSHR) - - /* Merge IRQ with base address */ - Return (ConcatenateResTemplate (RBUF, IBUF)) - } ElseIf (LGreater (IVEC, 0)) { - /* - * SERIRQ: Update interrupt vector based on TPM register - */ - Store (IVEC, TVEC) - - If (LEqual (ITPL, 0x0)) { - /* Active-High Level-Triggered Shared */ - Store (Zero, TPOL) - Store (Zero, TTYP) - Store (One, TSHR) - } ElseIf (LEqual (ITPL, 0x1)) { - /* Active-Low Level-Triggered Shared */ - Store (One, TPOL) - Store (Zero, TTYP) - Store (One, TSHR) - } ElseIf (LEqual (ITPL, 0x2)) { - /* Active-High Edge-Triggered Exclusive */ - Store (Zero, TPOL) - Store (One, TTYP) - Store (Zero, TSHR) - } ElseIf (LEqual (ITPL, 0x3)) { - /* Active-Low Edge-Triggered Exclusive */ - Store (One, TPOL) - Store (One, TTYP) - Store (Zero, TSHR) - } - - /* Merge IRQ with base address */ - Return (ConcatenateResTemplate (RBUF, IBUF)) - } Else { - Return (RBUF) - } - } - - /* Dummy _DSM to make Bitlocker work. */ - Method (_DSM, 4, Serialized) - { - /* Physical presence interface. - This is used to submit commands like "Clear TPM" to - be run at next reboot provided that user confirms them. - Spec allows user to cancel all commands and/or - configure BIOS to reject commands. So we pretend that - user did just this: cancelled everything. If user - really wants to clear TPM the only option now is to do it manually - in payload. - */ - If (LEqual (Arg0, ToUUID ("3dddfaa6-361b-4eb4-a424-8d10089d1653"))) - { - If (LEqual (Arg2, 0)) - { - /* Functions 1-8. */ - Return (Buffer (2) { 0xFF, 0x01 }) - } - - /* Interface version: 1.2 */ - If (LEqual (Arg2, 1)) - { - Return ("1.2") - } - - /* Submit operations: drop on the floor and return success. */ - If (LEqual (Arg2, 2)) - { - Return (0x00) - } - - /* Pending operation: none. */ - If (LEqual (Arg2, 3)) - { - Return (Package (2) { 0, 0 }) - } - - /* Pre-OS transition method: reboot. */ - If (LEqual (Arg2, 4)) - { - Return (2) - } - - /* Operation response: no operation executed. */ - If (LEqual (Arg2, 5)) - { - Return (Package (3) { 0, 0, 0 }) - } - - /* Set preffered user language: deprecated and must return 3 aka "not implemented". */ - If (LEqual (Arg2, 6)) - { - Return (3) - } - - /* Submit operations: deny. */ - If (LEqual (Arg2, 7)) - { - Return (3) - } - - /* All actions are forbidden. */ - If (LEqual (Arg2, 8)) - { - Return (1) - } - - Return (1) - } - - /* Memory clearing on boot: just a dummy. */ - If (LEqual (Arg0, ToUUID("376054ed-cc13-4675-901c-4756d7f2d45d"))) - { - If (LEqual (Arg2, 0)) - { - /* Function 1. */ - Return (Buffer (1) { 3 }) - } - - /* Just return success. */ - If (LEqual (Arg2, 1)) - { - Return (0) - } - - Return (1) - } - - Return (Buffer (1) { 0 }) - } -} - -#endif /* CONFIG_LPC_TPM */ |