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path: root/drivers/tpm
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2015-04-18sandbox: Move CONFIG_TPM_TIS_SANDBOX to KconfigSimon Glass1-0/+7
Move this over to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-12-08Replace <compiler.h> with <linux/compiler.h>Masahiro Yamada2-2/+2
Including <linux/compiler.h> is enough for general use. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-23linux/kernel.h: sync min, max, min3, max3 macros with LinuxMasahiro Yamada1-1/+1
U-Boot has never cared about the type when we get max/min of two values, but Linux Kernel does. This commit gets min, max, min3, max3 macros synced with the kernel introducing type checks. Many of references of those macros must be fixed to suppress warnings. We have two options: - Use min, max, min3, max3 only when the arguments have the same type (or add casts to the arguments) - Use min_t/max_t instead with the appropriate type for the first argument Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Pavel Machek <pavel@denx.de> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Tested-by: Lukasz Majewski <l.majewski@samsung.com> [trini: Fixup arch/blackfin/lib/string.c] Signed-off-by: Tom Rini <trini@ti.com>
2014-09-24kconfig: add blank Kconfig filesMasahiro Yamada1-0/+0
This would be useful to start moving various config options. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2014-07-07tpm: don't use unneeded double bracketsJeroen Hofstee1-1/+1
clang is tempted to inteprete such a condition as a assignment as well. Since it isn't don't use double brackets. cc: Tom Wai-Hong Tam <waihong@chromium.org> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-01-08sandbox: tpm: Fix nvwrite commandChe-Liang Chiou1-3/+1
The original codes misused recvbuf in source buffer instead of sendbuf, and read from incorrect offset 14 instead of 22. Signed-off-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Che-Liang Chiou <clchiou@chromium.org>
2014-01-08sandbox: tpm: Add TPM emulationSimon Glass2-0/+263
Add a simple TPM emulator for sandbox. It only supports a small subset of TPM operations. However, these are enough to perform common tasks. Note this is an initial commit to get this working, but it could use cleaning up (for example constants instead of open-coded values). Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2013-11-17drivers: tpm: clean up unused codeMasahiro Yamada2-187/+0
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-10-31drivers: convert makefiles to Kbuild styleMasahiro Yamada1-25/+4
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2-34/+2
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-16Add Atmel I2C tpmDirk Eibach2-0/+122
Add support for Atmel TPM devices with two wire interface. Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Reinhard Pfau <reinhard.pfau@gdsys.cc> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-03tpm: Reorganize the I2C TPM driverTom Wai-Hong Tam5-268/+383
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 <waihong@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2013-06-03tpm: Add support for new Infineon I2C TPM (SLB 9645 TT 1.2 I2C)Vincent Palatin2-23/+90
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 <vpalatin@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Luigi Semenzato <semenzato@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Tested-by: Tom Wai-Hong Tam <waihong@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org>
2013-06-03tpm: Rename generic_lpc_tpm to tpm_tis_lpcChe-liang Chiou2-1/+1
The new name is more aligned with Linux kernel's naming of TPM driver. Signed-off-by: Peter Huewe <peter.huewe@infineon.com> Signed-off-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
2013-04-12tpm: Add Infineon slb9635_i2c TPM driverRong Chang6-0/+1411
Add a driver for the I2C TPM from Infineon. Signed-off-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Rong Chang <rongchang@chromium.org> Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2013-04-12tpm: Add casts for proper compilationTaylor Hutt1-5/+5
When building for the Sandbox version, the casts in this change are necessary to avoid compilation issues. Signed-off-by: Taylor Hutt <thutt@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2011-12-07Introduce generic TPM support in u-bootVadim Bendebury2-0/+538
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 <vbendeb@chromium.org> CC: Wolfgang Denk <wd@denx.de>
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