projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| b303605e MK |
1 | /** @file\r |
| 2 | \r | |
| 3 | The Infineon SLB9645 TPM ACPI definition block.\r | |
| 4 | Provides TPM device info. and TPM presence check only.\r | |
| 5 | \r | |
| 6 | Copyright (c) 2013-2015 Intel Corporation.\r | |
| 7 | \r | |
| 0eb3de2e | 8 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| b303605e MK |
9 | \r |
| 10 | **/\r | |
| 11 | \r | |
| 12 | Device (TPM)\r | |
| 13 | {\r | |
| 14 | //\r | |
| 15 | // Define _HID as Infineon TPM Device, _CID as "PNP0C31" (defined in\r | |
| 16 | // "Secure Startup-FVE and TPM Admin BIOS and Platform Requirements").\r | |
| 17 | //\r | |
| 18 | Name(_HID ,EISAID("INT3493"))\r | |
| 19 | Name(_CID, EISAID("PNP0C31"))\r | |
| 20 | \r | |
| 21 | //\r | |
| 22 | // Readable name of this device.\r | |
| 23 | //\r | |
| 24 | Name (_STR, Unicode ("Infineon TPM 1.2 Device (SLB9645TT1.2)"))\r | |
| 25 | \r | |
| 26 | //\r | |
| 27 | // Return the resource consumed by TPM device.\r | |
| 28 | //\r | |
| 29 | Name (_CRS, ResourceTemplate () {\r | |
| 30 | I2cSerialBus (0x20, ControllerInitiated, 0x00061A80, AddressingMode7Bit, "\\_SB.PCI0.GIP0.I2C_", 0, ResourceConsumer,,)\r | |
| 31 | })\r | |
| 32 | \r | |
| 33 | //\r | |
| 34 | // Check if TPM present.\r | |
| 35 | //\r | |
| 36 | Method (_STA, 0)\r | |
| 37 | {\r | |
| 38 | if (LEqual (TPMP, 0))\r | |
| 39 | {\r | |
| 40 | return (0)\r | |
| 41 | }\r | |
| 42 | Return (0x0f)\r | |
| 43 | }\r | |
| 44 | \r | |
| 45 | }\r |