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[23.128.96.18]) by mx.google.com with ESMTP id v20si3785771eja.474.2020.07.01.06.25.56; Wed, 01 Jul 2020 06:26:20 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@st.com header.s=STMicroelectronics header.b=QJTqmhCO; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=st.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730859AbgGANZl (ORCPT + 99 others); Wed, 1 Jul 2020 09:25:41 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:37747 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728392AbgGANZl (ORCPT ); Wed, 1 Jul 2020 09:25:41 -0400 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 061DOnOH002515; Wed, 1 Jul 2020 15:25:29 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=STMicroelectronics; bh=N34mf34zyNH9z+LguQ97xJdxyRAZPkEJBPLArQ3FE8Y=; b=QJTqmhCOxZoThXwbTq++hh4KGoR/c3s9PepKJUzV6ZAJmNaavbNWbBvqg+WoYes1XzJO o5l7J2GWYSSQRv87klZAtytpDpxg3anxGaHxrmHGCaXJeOJ94YEsZbNWr+qWd4Rk4736 Kov+noZnCruOg4Nl8OHPMYc6avk0hnBo3PTqJCiPXGDm2RbGgljDa8cdg0d4t4NJta9F xYGyhyNROh9ExR3mIBdzklb71NqzrpPMSZsj5N22JA7mjG/h5hklWzqCcJxjfBLI2Qri qJCBO8ZBaIFo1I/pdqHTrHdYtWI9u69HNYqpC3qEH8lbVL1931bo6lxvPmsLkadMUklF 9g== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 31wuvwa82n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 01 Jul 2020 15:25:29 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id E3B6310002A; Wed, 1 Jul 2020 15:25:27 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node3.st.com [10.75.127.9]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id CFABD2B6DD8; Wed, 1 Jul 2020 15:25:27 +0200 (CEST) Received: from localhost (10.75.127.51) by SFHDAG3NODE3.st.com (10.75.127.9) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Wed, 1 Jul 2020 15:25:27 +0200 From: Benjamin Gaignard To: , , , , CC: , , , , , , Benjamin Gaignard Subject: [PATCH v4 0/5] STM32 ETZPC bus controller Date: Wed, 1 Jul 2020 15:25:18 +0200 Message-ID: <20200701132523.32533-1-benjamin.gaignard@st.com> X-Mailer: git-send-email 2.15.0 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.51] X-ClientProxiedBy: SFHDAG6NODE1.st.com (10.75.127.16) To SFHDAG3NODE3.st.com (10.75.127.9) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-07-01_08:2020-07-01,2020-07-01 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org STM32 Extended TrustZone Protection controller act like a firewall on the platform bus. Depending of its configuration devices could be accessible by the TrustZone, the co-processor or the non-secure world. ETZPC configuration could evolve at runtime for example to switch a device from non-secure world to co-processor. The series introduce 'firewall' helpers to handle the new devices-tree properties. These properties are not dedicated to ETZPC and will be reused for STM32 next generation of bus controller. version 4: - use bus API version 3: - add description in firewall consumer bindings - add Linus reviewed-by tag version 2: - fix unit name into st,stm32-etzpc.yaml example and DT Benjamin Gaignard (5): dt-bindings: bus: Add firewall bindings bus: stm32: Introduce firewall controller helpers dt-bindings: bus: Add STM32 ETZPC firewall controller bus: stm32: Add stm32 ETZPC firewall bus controller ARM: dts: stm32: Use ETZPC firewall bus .../bindings/bus/stm32/firewall-consumer.yaml | 36 +++ .../bindings/bus/stm32/firewall-provider.yaml | 18 ++ .../bindings/bus/stm32/st,stm32-etzpc.yaml | 46 ++++ arch/arm/boot/dts/stm32mp151.dtsi | 7 +- drivers/bus/Kconfig | 2 + drivers/bus/Makefile | 2 + drivers/bus/stm32/Kconfig | 11 + drivers/bus/stm32/Makefile | 2 + drivers/bus/stm32/firewall.c | 251 +++++++++++++++++++++ drivers/bus/stm32/firewall.h | 66 ++++++ drivers/bus/stm32/stm32-etzpc.c | 163 +++++++++++++ include/dt-bindings/bus/stm32/stm32-etzpc.h | 90 ++++++++ 12 files changed, 692 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/bus/stm32/firewall-consumer.yaml create mode 100644 Documentation/devicetree/bindings/bus/stm32/firewall-provider.yaml create mode 100644 Documentation/devicetree/bindings/bus/stm32/st,stm32-etzpc.yaml create mode 100644 drivers/bus/stm32/Kconfig create mode 100644 drivers/bus/stm32/Makefile create mode 100644 drivers/bus/stm32/firewall.c create mode 100644 drivers/bus/stm32/firewall.h create mode 100644 drivers/bus/stm32/stm32-etzpc.c create mode 100644 include/dt-bindings/bus/stm32/stm32-etzpc.h -- 2.15.0