From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754103AbcG1EZ3 (ORCPT ); Thu, 28 Jul 2016 00:25:29 -0400 Received: from mail-pa0-f42.google.com ([209.85.220.42]:36524 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750727AbcG1EZU (ORCPT ); Thu, 28 Jul 2016 00:25:20 -0400 From: Andrey Pronin To: Jarkko Sakkinen Cc: Peter Huewe , Marcel Selhorst , Jason Gunthorpe , tpmdd-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Christophe Ricard , dtor@chromium.org, smbarber@chromium.org, dianders@chromium.org, Andrey Pronin Subject: [PATCH v3 0/2] tpm: add driver for cr50 on SPI Date: Wed, 27 Jul 2016 21:25:15 -0700 Message-Id: <1469679917-120240-1-git-send-email-apronin@chromium.org> X-Mailer: git-send-email 2.8.0.rc3.226.g39d4020 In-Reply-To: <1468549218-19215-1-git-send-email-apronin@chromium.org> References: <1468549218-19215-1-git-send-email-apronin@chromium.org> In-Reply-To: <1468549218-19215-1-git-send-email-apronin@chromium.org> References: <1468549218-19215-1-git-send-email-apronin@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. 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