diff options
| author | Nayna Jain <nayna@linux.vnet.ibm.com> | 2016-10-26 05:21:44 -0400 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2016-11-28 01:31:31 +0200 |
| commit | 82003e0487fb62ac8e58a2bc2583cbaaa1e50652 (patch) | |
| tree | 8c2123c1d6f53ce49b59a089b44f4c489244da20 /Documentation/devicetree/bindings/security | |
| parent | 1a277e674bc2cf5300c77e1901ae2357726afe07 (diff) | |
Documentation: tpm: add the IBM Virtual TPM device tree binding documentation
Virtual TPM, which is being used on IBM POWER7+ and POWER8 systems running
POWERVM, is currently supported by tpm device driver but lacks the
documentation. This patch adds the missing documentation for the existing
support.
Suggested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'Documentation/devicetree/bindings/security')
| -rw-r--r-- | Documentation/devicetree/bindings/security/tpm/ibmvtpm.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/security/tpm/ibmvtpm.txt b/Documentation/devicetree/bindings/security/tpm/ibmvtpm.txt new file mode 100644 index 000000000000..d89f99971368 --- /dev/null +++ b/Documentation/devicetree/bindings/security/tpm/ibmvtpm.txt @@ -0,0 +1,41 @@ +* Device Tree Bindings for IBM Virtual Trusted Platform Module(vtpm) + +Required properties: + +- compatible : property name that conveys the platform architecture + identifiers, as 'IBM,vtpm' +- device_type : specifies type of virtual device +- interrupts : property specifying the interrupt source number and + sense code associated with this virtual I/O Adapters +- ibm,my-drc-index : integer index for the connector between the device + and its parent - present only if Dynamic + Reconfiguration(DR) Connector is enabled +- ibm,#dma-address-cells: specifies the number of cells that are used to + encode the physical address field of dma-window + properties +- ibm,#dma-size-cells : specifies the number of cells that are used to + encode the size field of dma-window properties +- ibm,my-dma-window : specifies DMA window associated with this virtual + IOA +- ibm,loc-code : specifies the unique and persistent location code + associated with this virtual I/O Adapters +- linux,sml-base : 64-bit base address of the reserved memory allocated + for the firmware event log +- linux,sml-size : size of the memory allocated for the firmware event log + +Example (IBM Virtual Trusted Platform Module) +--------------------------------------------- + + vtpm@30000003 { + ibm,#dma-size-cells = <0x2>; + compatible = "IBM,vtpm"; + device_type = "IBM,vtpm"; + ibm,my-drc-index = <0x30000003>; + ibm,#dma-address-cells = <0x2>; + linux,sml-base = <0xc60e 0x0>; + interrupts = <0xa0003 0x0>; + ibm,my-dma-window = <0x10000003 0x0 0x0 0x0 0x10000000>; + ibm,loc-code = "U8286.41A.10082DV-V3-C3"; + reg = <0x30000003>; + linux,sml-size = <0xbce10200>; + }; |