From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4F09ECAC5B0 for ; Mon, 29 Sep 2025 16:58:15 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v3H8q-0004QQ-1i; Mon, 29 Sep 2025 12:54:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1v3H7d-0002uY-Tu for qemu-devel@nongnu.org; Mon, 29 Sep 2025 12:53:12 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1v3H7X-0002nY-TW for qemu-devel@nongnu.org; Mon, 29 Sep 2025 12:53:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1759164782; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=aqVOYhGw94Jf/OiJAawsJ2cAh/HpqFgHZnqY+6tx1CA=; b=Mrbni4vZgRAmd4V7+fsm2geSF3qdHrTQGCLH5ATfi6x85y0RqCW3G0oC0tdB9Y/+Gy8sSA kXvWlPC/L2/5t86wLGuN7vSqrAoke5bCtb1FXmIx2JrW2OSqtWOS1SHph2ZMDvsXfeLpSe KgP/E+aDVKbZCm3KgZQKBubfJ4r0yAE= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-621-Uud92gsJNb6nHzOenO94-w-1; Mon, 29 Sep 2025 12:52:58 -0400 X-MC-Unique: Uud92gsJNb6nHzOenO94-w-1 X-Mimecast-MFC-AGG-ID: Uud92gsJNb6nHzOenO94-w_1759164777 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9484C1800577; Mon, 29 Sep 2025 16:52:57 +0000 (UTC) Received: from corto.redhat.com (unknown [10.44.32.27]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id F08611800452; Mon, 29 Sep 2025 16:52:55 +0000 (UTC) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: Kane-Chen-AS , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 09/32] docs/system/arm/aspeed: Document OTP memory options Date: Mon, 29 Sep 2025 18:52:07 +0200 Message-ID: <20250929165230.797471-10-clg@redhat.com> In-Reply-To: <20250929165230.797471-1-clg@redhat.com> References: <20250929165230.797471-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass client-ip=170.10.129.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.513, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Kane-Chen-AS Add documentation for the OTP memory module used by AST2600 and AST1030 SoCs, and describe options for using a pre-generated image or an internal buffer. Include example commands for configuration and image generation. Signed-off-by: Kane-Chen-AS Reviewed-by: Cédric Le Goater Link: https://lore.kernel.org/qemu-devel/20250812094011.2617526-11-kane_chen@aspeedtech.com Signed-off-by: Cédric Le Goater --- docs/system/arm/aspeed.rst | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/docs/system/arm/aspeed.rst b/docs/system/arm/aspeed.rst index bf18c5634700..6317c0e910a2 100644 --- a/docs/system/arm/aspeed.rst +++ b/docs/system/arm/aspeed.rst @@ -243,6 +243,37 @@ under Linux), use : -M ast2500-evb,bmc-console=uart3 +OTP Option +^^^^^^^^^^ + +Both the AST2600 and AST1030 chips use the same One Time Programmable +(OTP) memory module, which is utilized for configuration, key storage, +and storing user-programmable data. This OTP memory module is managed +by the Secure Boot Controller (SBC). The following options can be +specified or omitted based on your needs. + + * When the options are specified, the pre-generated configuration + file will be used as the OTP memory storage. + + * When the options are omitted, an internal memory buffer will be + used to store the OTP memory data. + +.. code-block:: bash + + -blockdev driver=file,filename=otpmem.img,node-name=otp \ + -global aspeed-otp.drive=otp \ + +The following bash command can be used to generate a default +configuration file for OTP memory: + +.. code-block:: bash + + if [ ! -f otpmem.img ]; then + for i in $(seq 1 2048); do + printf '\x00\x00\x00\x00\xff\xff\xff\xff' + done > otpmem.img + fi + Aspeed 2700 family boards (``ast2700-evb``) ================================================================== -- 2.51.0