u-boot.git/drivers/tpm, branch v2013.07

Add Atmel I2C tpm

2013-07-16T22:44:30+00:00

Add support for Atmel TPM devices with two wire interface.

Signed-off-by: Dirk Eibach 
Signed-off-by: Reinhard Pfau 
Reviewed-by: Simon Glass 
Signed-off-by: Andy Fleming

tpm: Reorganize the I2C TPM driver

2013-06-03T08:31:23+00:00

This patch does a similar code reogranzation from
  http://patchwork.ozlabs.org/patch/132179/
which is based on an old version of code (fdt support and bus selection
still not in). It merges this tidy-up on top of the recent code. It does
not make any logical change.

tpm.c implements the interface defined in tpm.h based on underlying
LPC or I2C TPM driver. tpm.c and the underlying driver communicate
throught tpm_private.h.

Note: Merging the LPC driver with tpm.c is left to future patches.

Change-Id: Ie1384f5f9e3935d3bc9a44adf8de80c5a70a5f2b
Signed-off-by: Tom Wai-Hong Tam 
Signed-off-by: Simon Glass 
Reviewed-by: Simon Glass

tpm: Add support for new Infineon I2C TPM (SLB 9645 TT 1.2 I2C)

2013-06-03T08:26:25+00:00

Add support for Infineon's new SLB 9645 TT 1.2 I2C TPMs,
which supports clockstretching, combined reads and a bus speed of
up to 400khz. The device also has a new device id.

This is based on the kernel patch provided by Infineon :
https://gerrit.chromium.org/gerrit/42332

Signed-off-by: Vincent Palatin 

Signed-off-by: Simon Glass 
Reviewed-by: Luigi Semenzato 
Reviewed-by: Simon Glass 
Reviewed-by: Vincent Palatin 
Tested-by: Tom Wai-Hong Tam 
Tested-by: Vincent Palatin

tpm: Rename generic_lpc_tpm to tpm_tis_lpc

2013-06-03T08:26:25+00:00

The new name is more aligned with Linux kernel's naming of TPM driver.

Signed-off-by: Peter Huewe 
Signed-off-by: Che-Liang Chiou 
Signed-off-by: Simon Glass 
Acked-by: Mike Frysinger 
Reviewed-by: Simon Glass 
Tested-by: Tom Wai-Hong Tam

tpm: Add Infineon slb9635_i2c TPM driver

2013-04-12T21:13:00+00:00

Add a driver for the I2C TPM from Infineon.

Signed-off-by: Che-Liang Chiou 
Signed-off-by: Rong Chang 
Signed-off-by: Tom Wai-Hong Tam 
Signed-off-by: Simon Glass

tpm: Add casts for proper compilation

2013-04-12T21:12:51+00:00

When building for the Sandbox version, the casts in this change are
necessary to avoid compilation issues.

Signed-off-by: Taylor Hutt 
Signed-off-by: Simon Glass 
Reviewed-by: Simon Glass

Introduce generic TPM support in u-boot

2011-12-07T07:45:51+00:00

TPM (Trusted Platform Module) is an integrated circuit and
software platform that provides computer manufacturers with the
core components of a subsystem used to assure authenticity,
integrity and confidentiality.

This driver supports version 1.2 of the TCG (Trusted Computing
Group) specifications.

The TCG specification defines several so called localities in a
TPM chip, to be controlled by different software layers. When
used on a typical x86 platform during the firmware phase, only
locality 0 can be accessed by the CPU, so this driver even while
supporting the locality concept presumes that only locality zero
is used.

This implementation is loosely based on the article "Writing a
TPM Device Driver" published on http://ptgmedia.pearsoncmg.com

Compiling this driver with DEBUG defined will generate trace of
all accesses to TMP registers.

This driver has been tested and is being used in three different
functional ChromeOS machines (Pinetrail and Sandy Bridge Intel
chipsets) all using the same Infineon SLB 9635 TT 1.2 device.

A u-boot cli command allowing access to the TPM was also
implemented and is being submitted as a second patch.

Change-Id: I22a33c3e5b2e20eec9557a7621bd463b30389d73
Signed-off-by: Vadim Bendebury 
CC: Wolfgang Denk