linux-kernel - [PATCH v4 0/2] tpm: add driver for cr50 on SPI

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Message-Id: <1469757314-116169-1-git-send-email-apronin@chromium.org>
Date:	Thu, 28 Jul 2016 18:55:12 -0700
From:	Andrey Pronin <apronin@...omium.org>
To:	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:	Peter Huewe <peterhuewe@....de>,
	Marcel Selhorst <tpmdd@...horst.net>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	Christophe Ricard <christophe.ricard@...il.com>,
	dtor@...omium.org, smbarber@...omium.org, dianders@...omium.org,
	Andrey Pronin <apronin@...omium.org>
Subject: [PATCH v4 0/2] tpm: add driver for cr50 on SPI

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.

v3: Fixed potential race-condition with last_access_jiffies.
    Started using tx_buf/rx_buf in cr50_spi_phy to avoid
    potential problems with DMA.
    Removed DT properties for fw timing parameters.
    Fixed style.

v4: Fixed cacheline alignment for xfer buffers.

Andrey Pronin (2):
  tpm: devicetree: document properties for cr50
  tpm: add driver for cr50 on SPI

 .../devicetree/bindings/security/tpm/cr50_spi.txt  |  21 ++
 drivers/char/tpm/Kconfig                           |   9 +
 drivers/char/tpm/Makefile                          |   1 +
 drivers/char/tpm/cr50_spi.c                        | 350 +++++++++++++++++++++
 4 files changed, 381 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/security/tpm/cr50_spi.txt
 create mode 100644 drivers/char/tpm/cr50_spi.c

-- 
2.6.6