diff options
Diffstat (limited to 'src/drivers/pc80/tpm')
| -rw-r--r-- | src/drivers/pc80/tpm/acpi/tpm.asl | 39 |
1 files changed, 24 insertions, 15 deletions
diff --git a/src/drivers/pc80/tpm/acpi/tpm.asl b/src/drivers/pc80/tpm/acpi/tpm.asl index 7755e9b066..de2511467a 100644 --- a/src/drivers/pc80/tpm/acpi/tpm.asl +++ b/src/drivers/pc80/tpm/acpi/tpm.asl @@ -21,10 +21,33 @@ Device (TPM) 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_LPC_TPM && !CONFIG_TPM_DEACTIVATE - Return (0xf) + If (LAnd (LGreater (DVID, 0), LLess (DVID, 0xffffffff))) { + Return (0xf) + } Else { + /* TPM module missing */ + Return (0x0) + } #else Return (0x0) #endif @@ -45,20 +68,6 @@ Device (TPM) Method (_CRS, 0, Serialized) { - 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 */ - } - CreateField (^IBUF, ^TIRQ._INT, 32, TVEC) CreateBitField (^IBUF, ^TIRQ._HE, TTYP) CreateBitField (^IBUF, ^TIRQ._LL, TPOL) |