From patchwork Wed Oct 26 09:21:45 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nayna X-Patchwork-Id: 686952 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.sourceforge.net (lists.sourceforge.net [216.34.181.88]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3t3l0z0xM6z9sfH for ; Wed, 26 Oct 2016 20:22:43 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=sfs-ml-3.v29.ch3.sourceforge.com) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1bzKPu-0005Yh-14; Wed, 26 Oct 2016 09:22:38 +0000 Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1bzKPs-0005Ya-MS for tpmdd-devel@lists.sourceforge.net; Wed, 26 Oct 2016 09:22:36 +0000 X-ACL-Warn: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5] helo=mx0a-001b2d01.pphosted.com) by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1bzKPr-0008Bo-SF for tpmdd-devel@lists.sourceforge.net; Wed, 26 Oct 2016 09:22:36 +0000 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u9Q9L93g117785 for ; Wed, 26 Oct 2016 05:22:30 -0400 Received: from e28smtp07.in.ibm.com (e28smtp07.in.ibm.com [125.16.236.7]) by mx0b-001b2d01.pphosted.com with ESMTP id 26apc5a1xn-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 26 Oct 2016 05:22:29 -0400 Received: from localhost by e28smtp07.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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See http://spamassassin.org/tag/ for more details. 0.5 RCVD_IN_SORBS_SPAM RBL: SORBS: sender is a spam source [148.163.158.5 listed in dnsbl.sorbs.net] -0.2 AWL AWL: Adjusted score from AWL reputation of From: address X-Headers-End: 1bzKPr-0008Bo-SF Cc: mark.rutland@arm.com, robh@kernel.org, pawel.moll@arm.com, ijc+devicetree@hellion.org.uk, wsa@the-dreams.de, honclo@linux.vnet.ibm.com, linux-i2c@vger.kernel.org, galak@codeaurora.org, cclaudio@linux.vnet.ibm.com Subject: [tpmdd-devel] [PATCH v3 2/2] Documentation: tpm: add the Physical TPM device tree binding documentation X-BeenThere: tpmdd-devel@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: Tpm Device Driver maintainance List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: tpmdd-devel-bounces@lists.sourceforge.net Newly added support of TPM 2.0 eventlog securityfs pseudo files in tpm device driver consumes device tree bindings representing I2C based Physical TPM. This patch adds the documentation for corresponding device tree bindings of I2C based Physical TPM. These bindings are similar to vtpm device tree bindings being used on IBM Power7+ and Power8 Systems running PowerVM. Suggested-by: Jason Gunthorpe Signed-off-by: Nayna Jain Acked-by: Rob Herring --- Changelog v3: - Added documentation for "label" property. Changelog v2: - Include review feedbacks. - Move the doc within bindings/security/tpm. - Add example for compatible property in description. - Delete implicit properties like status, label from description. - Redefine linux,sml-base description. .../devicetree/bindings/security/tpm/tpm-i2c.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt diff --git a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt new file mode 100644 index 0000000..8cb638b --- /dev/null +++ b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt @@ -0,0 +1,21 @@ +* Device Tree Bindings for I2C based Trusted Platform Module(TPM) + +Required properties: + +- compatible : 'manufacturer,model', eg. nuvoton,npct650 +- label : human readable string describing the device, eg. "tpm" +- linux,sml-base : 64-bit base address of the reserved memory allocated for + the firmware event log +- linux,sml-size : size of the memory allocated for the firmware event log + +Example (for OpenPower Systems with Nuvoton TPM 2.0 on I2C) +---------------------------------------------------------- + +tpm@57 { + reg = <0x57>; + label = "tpm"; + compatible = "nuvoton,npct650", "nuvoton,npct601"; + linux,sml-base = <0x7f 0xfd450000>; + linux,sml-size = <0x10000>; + status = "okay"; +};