u-boot.git/drivers/tpm, branch v2020.04

Merge tag 'dm-pull-6feb20' of https://gitlab.denx.de/u-boot/custodians/u-boot-dm

2020-02-11T15:58:41Z

sandbox conversion to SDL2 TPM TEE driver Various minor sandbox video enhancements New driver model core utility functions

tpm: Add a driver for H1/Cr50

2020-02-07T14:46:35Z

H1 is a Google security chip present in recent Chromebooks, Pixel phones and other devices. Cr50 is the name of the software that runs on H1 in Chromebooks. This chip is used to handle TPM-like functionality and also has quite a few additional features. Add a driver for this. Signed-off-by: Simon Glass

tpm2: ftpm: A driver for firmware TPM running inside TEE

2020-02-06T02:33:46Z

Add a driver for a firmware TPM running inside TEE. Documentation of the firmware TPM: https://www.microsoft.com/en-us/research/publication/ftpm-software-implementation-tpm-chip/ Implementation of the firmware TPM: https://github.com/Microsoft/ms-tpm-20-ref/tree/master/Samples/ARM32-FirmwareTPM Signed-off-by: Thirupathaiah Annapureddy

dm: gpio: Allow control of GPIO uclass in SPL

2019-12-15T00:52:29Z

At present if CONFIG_SPL_GPIO_SUPPORT is enabled then the GPIO uclass is included in SPL/TPL without any control for boards. Some boards may want to disable this to reduce code size where GPIOs are not needed in SPL or TPL. Add a new Kconfig option to permit this. Default it to 'y' so that existing boards work correctly. Change existing uses of CONFIG_DM_GPIO to CONFIG_IS_ENABLED(DM_GPIO) to preserve the current behaviour. Also update the 74x164 GPIO driver since it cannot build with SPL. This allows us to remove the hacks in config_uncmd_spl.h and Makefile.uncmd_spl (eventually those files should be removed). Signed-off-by: Simon Glass Reviewed-by: Bin Meng

common: Drop linux/crc8.h

2019-12-02T23:23:07Z

We have an existing U-Boot header for the one function that this defines. Use that instead of the linux/ one. Move over the nice comment. Signed-off-by: Simon Glass Reviewed-by: Tom Rini

tpm2: Don't assume active low reset value

2019-10-15T14:40:02Z

The reset function sets the pin to 0 then 1 but if the pin is marked ACTIVE_LOW in the DT it gets inverted and leaves the TPM in reset. Let the gpio driver take care of the reset polarity. Signed-off-by: Kayla Theil

tpm: wait for valid status

2019-07-11T18:11:18Z

The TPM specification says that the EXPECT_DATA bit is not valid until the VALID bit is set. Wait for that bit to be set. Fixes problems with Ifineon SPI TPM. Signed-off-by: Roman Kapl

tpm: Export the open/close functions

2018-11-29T16:30:06Z

At present these functions are not accessible outside the TPM library, but in some cases we need to call them. Export them in the header file and add a define for the SHA1 digest size. Also adjust tpm_open() to call tpm_close() first so that the TPM is in a known state before opening (e.g. by a previous phase of U-Boot). Signed-off-by: Simon Glass

sandbox: tpm: Allow debugging of data packages

2018-11-21T02:14:22Z

This is not normally useful, so change the code to avoid writing out every data package. This can be enabled with #define DEBUG. Signed-off-by: Simon Glass

tpm: Use livetree and allow children

2018-10-09T10:40:27Z

Adjust the TPM drivers to use livetree (only one does not). Also, sometimes TPMs can have child devices if they provide a service to the system (such as storing secure data), so permit that. Signed-off-by: Simon Glass