From patchwork Tue May 21 12:24:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaud POULIQUEN X-Patchwork-Id: 13669393 Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4FAB676049; Tue, 21 May 2024 12:29:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.207.212.93 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716294544; cv=none; b=P/9ui7URhxcGVoJEi4Bc8Blkq8mjhr8Zk+2sMPui6GUMJrq427aTEixmqgVzTzayJwfhkWUXpAO4UFN3Keqjcudv0bGWLqftiLz86Q7DfSasYFwujZrEYSYu2a3CuQXN9x3gJr2ZqnzIU478VdhDD3mIuqFOtae0BBR9kB2TCFg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716294544; c=relaxed/simple; bh=WJAAFv9HpT7EYoeKUho7qzaL00rTB2FCdEQkiADh85I=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=spKiPQbeH9zN/aTqhPCMFlUyTh0e7frrtvZMig3aEruH09KLMlerSek2y7RpMjN3BSMokXRAztM3nT2foGmvalV2CyeWa+aVnfUQZGRMvPb6FQGR9uISUaQh4Y6rf/2+7/rPrGIPrhs63KksgEwkI7DO7ilvMsDLdDTAKyJOfbw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com; spf=pass smtp.mailfrom=foss.st.com; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b=s6mXvl/c; arc=none smtp.client-ip=91.207.212.93 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foss.st.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="s6mXvl/c" Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 44LBS5R5003097; Tue, 21 May 2024 14:28:42 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= selector1; bh=3mswl4/9HTAkPLEfs+kyIZ/5HHTQ7/vqhlZwBfB6tso=; b=s6 mXvl/cifJCKdpn7QCSGJsNJxkhWmGQg1wFV5rBAWMBX2f3xwSyFPjIgDhmftl0pI qIbiomDXT4oHh/851MRj3S7xeOlobp9NbWA4hPt043dKYp+72KigW7rNdGaCDzrw WZlBh3pfEHxreKt3UYzUdNPnvizMOJA7f3/78LpInPaG2HiM4tbDLsgqFEK/RbPR SXAMIxxx0bn0FP6SBkmNYbP4Z0hUGX+VjT0wyekfXmgr7d4ekJnEWD72ChG9Ylcw BP4+ZAK3VnTD6m4cUZ1CDf4hmDbezs7mOAqj0IxFW/VFOQmuJydULefi3Lh1g5EB y27I2GecMzCSfBdiQfww== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3y6n6hkqvn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 May 2024 14:28:42 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 1608940047; Tue, 21 May 2024 14:28:38 +0200 (CEST) Received: from Webmail-eu.st.com (eqndag1node4.st.com [10.75.129.133]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 8172A2194C7; Tue, 21 May 2024 14:27:47 +0200 (CEST) Received: from SAFDAG1NODE1.st.com (10.75.90.17) by EQNDAG1NODE4.st.com (10.75.129.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 21 May 2024 14:27:47 +0200 Received: from localhost (10.48.86.121) by SAFDAG1NODE1.st.com (10.75.90.17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 21 May 2024 14:27:47 +0200 From: Arnaud Pouliquen To: Bjorn Andersson , Mathieu Poirier , Jens Wiklander , "Rob Herring" , Krzysztof Kozlowski , Conor Dooley CC: , , , , , , Arnaud Pouliquen Subject: [RESEND PATCH v5 2/7] dt-bindings: remoteproc: Add compatibility for TEE support Date: Tue, 21 May 2024 14:24:53 +0200 Message-ID: <20240521122458.3517054-3-arnaud.pouliquen@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240521122458.3517054-1-arnaud.pouliquen@foss.st.com> References: <20240521122458.3517054-1-arnaud.pouliquen@foss.st.com> Precedence: bulk X-Mailing-List: linux-remoteproc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SAFCAS1NODE2.st.com (10.75.90.13) To SAFDAG1NODE1.st.com (10.75.90.17) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.12.28.16 definitions=2024-05-21_08,2024-05-21_01,2024-05-17_01 The "st,stm32mp1-m4-tee" compatible is utilized in a system configuration where the Cortex-M4 firmware is loaded by the Trusted execution Environment (TEE). For instance, this compatible is used in both the Linux and OP-TEE device-tree: - In OP-TEE, a node is defined in the device tree with the st,stm32mp1-m4-tee to support signed remoteproc firmware. Based on DT properties, OP-TEE authenticates, loads, starts, and stops the firmware. - On Linux, when the compatibility is set, the Cortex-M resets should not be declared in the device tree. Signed-off-by: Arnaud Pouliquen Reviewed-by: Rob Herring --- .../bindings/remoteproc/st,stm32-rproc.yaml | 51 ++++++++++++++++--- 1 file changed, 43 insertions(+), 8 deletions(-) diff --git a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml index 370af61d8f28..36ea54016b76 100644 --- a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml +++ b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml @@ -16,7 +16,12 @@ maintainers: properties: compatible: - const: st,stm32mp1-m4 + enum: + - st,stm32mp1-m4 + - st,stm32mp1-m4-tee + description: + Use "st,stm32mp1-m4" for the Cortex-M4 coprocessor management by non-secure context + Use "st,stm32mp1-m4-tee" for the Cortex-M4 coprocessor management by secure context reg: description: @@ -142,21 +147,41 @@ properties: required: - compatible - reg - - resets allOf: - if: properties: - reset-names: - not: - contains: - const: hold_boot + compatible: + contains: + const: st,stm32mp1-m4 then: + if: + properties: + reset-names: + not: + contains: + const: hold_boot + then: + required: + - st,syscfg-holdboot + else: + properties: + st,syscfg-holdboot: false + required: + - reset-names required: - - st,syscfg-holdboot - else: + - resets + + - if: + properties: + compatible: + contains: + const: st,stm32mp1-m4-tee + then: properties: st,syscfg-holdboot: false + reset-names: false + resets: false additionalProperties: false @@ -188,5 +213,15 @@ examples: st,syscfg-rsc-tbl = <&tamp 0x144 0xFFFFFFFF>; st,syscfg-m4-state = <&tamp 0x148 0xFFFFFFFF>; }; + - | + #include + m4@10000000 { + compatible = "st,stm32mp1-m4-tee"; + reg = <0x10000000 0x40000>, + <0x30000000 0x40000>, + <0x38000000 0x10000>; + st,syscfg-rsc-tbl = <&tamp 0x144 0xFFFFFFFF>; + st,syscfg-m4-state = <&tamp 0x148 0xFFFFFFFF>; + }; ...