This patchset adds support for H1 Secure Microcontroller running
Cr50 firmware. It implements several functions, including TPM-like
functionality, and communicates over SPI using the FIFO protocol
described in the PTP Spec, section 6.
H1 is a proprietary chip that the Chrome OS team is investigating
for inclusion in future Chromebooks.
Depends on the following patchset:
- tpm_tis_core: add optional max xfer size check
v2: Removed driver-specific sysfs attributes.
Compatible id changed to cr50 from cr50_spi.
Updated descriptions of the supported device/interface.
Andrey Pronin (2):
tpm: devicetree: document properties for cr50
tpm: add driver for cr50 on SPI
.../devicetree/bindings/security/tpm/cr50_spi.txt | 32 ++
drivers/char/tpm/Kconfig | 9 +
drivers/char/tpm/Makefile | 1 +
drivers/char/tpm/cr50_spi.c | 388 +++++++++++++++++++++
4 files changed, 430 insertions(+)
create mode 100644 Documentation/devicetree/bindings/security/tpm/cr50_spi.txt
create mode 100644 drivers/char/tpm/cr50_spi.c
--
2.6.6
------------------------------------------------------------------------------
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