tpm/tpm_tis_spi: Add support for spi phy

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Spi protocol standardized by the TCG is now supported by most of TPM
vendors.

It supports SPI Bit Protocol as describe in the TCG PTP
specification (chapter 6.4.6 SPI Bit Protocol).

Irq mode is not supported.

This commit is based on the initial work by Peter Huewe.

Signed-off-by: Peter Huewe <peter.huewe@infineon.com>
Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

...

This commit is contained in:

Christophe Ricard 2016-05-19 00:35:53 +02:00 • committed by Jarkko Sakkinen

parent 41a5e1cf1f

commit 0edbfea537

4 changed files with 309 additions and 0 deletions

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24

Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt

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12

drivers/char/tpm/Kconfig

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1

drivers/char/tpm/Makefile

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272

drivers/char/tpm/tpm_tis_spi.c

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