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* dm: tpm: Remove every compilation switch for TPM driver modelChristophe Ricard2015-10-23-12/+1
| | | | | | | | | | | As every TPM drivers support UCLASS_TPM, we can only rely on DM_TPM functions. This simplify a bit the code. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Simon Glass <sjg@chromium.org>
* tpm: Add a 'tpm info' commandSimon Glass2015-08-31-0/+26
| | | | | | | | | Add a command to display basic information about a TPM such as the model and open/close state. This can be useful for debugging. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Heiko Schocher <hs@denx.de>
* tpm: Check that parse_byte_string() has data to parseSimon Glass2015-08-31-0/+2
| | | | | | | | | Rather then crashing when there is no data, print an error. The error is printed by the caller to parse_byte_string(). Acked-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
* tpm: Report tpm errors on the command lineSimon Glass2015-08-31-22/+24
| | | | | | | | | | | When a 'tpm' command fails, we set the return code but give no indication of failure. This can be confusing. Add an error message when any tpm command fails. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Christophe Ricard<christophe-h.ricard@st.com> Reviewed-by: Heiko Schocher <hs@denx.de>
* dm: tpm: Convert the TPM command and library to driver modelSimon Glass2015-08-31-0/+26
| | | | | | | | | Add driver model support to the TPM command and the TPM library. Both support only a single TPM at present. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Christophe Ricard<christophe-h.ricard@st.com> Reviewed-by: Heiko Schocher <hs@denx.de>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-17/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* tpm: add AUTH1 cmds for LoadKey2 and GetPubKeyReinhard Pfau2013-07-16-0/+100
| | | | | | | | | | | | | | | | | | | | | | Extend the tpm library with support for single authorized (AUTH1) commands as specified in the TCG Main Specification 1.2. (The internally used helper functions are implemented in a way that they could also be used for double authorized commands if someone needs it.) Provide enums with the return codes from the TCG Main specification. For now only a single OIAP session is supported. OIAP authorized version of the commands TPM_LoadKey2 and TPM_GetPubKey are provided. Both features are available using the 'tpm' command, too. Authorized commands are enabled with CONFIG_TPM_AUTH_SESSIONS. (Note that this also requires CONFIG_SHA1 to be enabled.) Signed-off-by: Reinhard Pfau <reinhard.pfau@gdsys.cc> Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Acked-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Andy Fleming <afleming@freescale.com>
* tpm: Add TPM command libraryChe-liang Chiou2013-04-12-110/+599
| | | | | | | | | | | | | | | | | | | | | | | | | | | TPM command library implements a subset of TPM commands defined in TCG Main Specification 1.2 that are useful for implementing secure boot. More TPM commands could be added out of necessity. You may exercise these commands through the 'tpm' command. However, the raw TPM commands are too primitive for writing secure boot in command interpreter scripts; so the 'tpm' command also provides helper functions to make scripting easier. For example, to define a counter in TPM non-volatile storage and initialize it to zero: $ tpm init $ tpm startup TPM_ST_CLEAR $ tpm nv_define d 0x1001 0x1 $ tpm nv_write d 0x1001 0 And then increment the counter by one: $ tpm nv_read d 0x1001 i $ setexpr.l i $i + 1 $ tpm nv_write d 0x1001 $i Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
* tpm: Add TPM stress testLuigi Semenzato2012-12-11-6/+87
| | | | | | | | Add a simple command to stress-test a TPM (Trusted Platform Module). Signed-off-by: Luigi Semenzato <semenzato@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* Add a cli command to test the TPM device.Vadim Bendebury2011-12-06-0/+103
The command gets an arbitrary number of arguments (up to 30), which are interpreted as byte values and are feed into the TPM device after proper initialization. Then the return value and data of the TPM driver is examined. TPM commands are described in the TCG specification. For instance, the following sequence is the 'TPM Startup' command, it is processed by the TPM and a response is generated: boot > tpm 0x0 0xc1 0x0 0x0 0x0 0xc 0x0 0x0 0x0 0x99 0x0 0x1 Found TPM SLB9635 TT 1.2 by Infineon Got TPM response: 00 c4 00 00 00 0a 00 00 00 00 If the command is corrupted (fed one byte short), an error is reported: boot > tpm 0x0 0xc1 0x0 0x0 0x0 0xc 0x0 0x0 0x0 0x99 0x0 generic_lpc_tpm.c:311 unexpected TPM status 0xff000888 generic_lpc_tpm.c:516 failed sending data to TPM tpm command failed boot > Change-Id: I3f3c5bfec8b852e208c4e99ba37b0f2b875140b0 Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> CC: Wolfgang Denk <wd@denx.de>
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