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Wed, 14 Oct 2020 14:55:14 +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 6536810002A; Wed, 14 Oct 2020 14:55:14 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node1.st.com [10.75.127.7]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 55D6F2DA52D; Wed, 14 Oct 2020 14:55:14 +0200 (CEST) Received: from localhost (10.75.127.45) by SFHDAG3NODE1.st.com (10.75.127.7) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 14 Oct 2020 14:55:13 +0200 From: Arnaud Pouliquen To: Rob Herring , Alexandre Torgue Subject: [PATCH v2 4/4] ARM: dts: stm32: update stm32mp151 for remote proc synchronization support Date: Wed, 14 Oct 2020 14:54:41 +0200 Message-ID: <20201014125441.2457-5-arnaud.pouliquen@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201014125441.2457-1-arnaud.pouliquen@st.com> References: <20201014125441.2457-1-arnaud.pouliquen@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG1NODE3.st.com (10.75.127.3) To SFHDAG3NODE1.st.com (10.75.127.7) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-10-14_07:2020-10-14, 2020-10-14 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201014_085520_051843_56DC4228 X-CRM114-Status: GOOD ( 16.61 ) X-Spam-Score: -0.9 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [91.207.212.93 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ohad Ben-Cohen , devicetree@vger.kernel.org, Ahmad Fatoum , Mathieu Poirier , linux-remoteproc@vger.kernel.org, Arnaud Pouliquen , linux-kernel@vger.kernel.org, Bjorn Andersson , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Two backup registers are used to store the Cortex-M4 state and the resource table address. Declare the tamp node and add associated properties in m4_rproc node to allow Linux to attach to a firmware loaded by the first boot stages. Associated driver implementation is available in commit 9276536f455b3 ("remoteproc: stm32: Parse syscon that will manage M4 synchronisation"). Signed-off-by: Arnaud Pouliquen Tested-by: Mathieu Poirier --- arch/arm/boot/dts/stm32mp151.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi index bfe29023fbd5..842ecffae73a 100644 --- a/arch/arm/boot/dts/stm32mp151.dtsi +++ b/arch/arm/boot/dts/stm32mp151.dtsi @@ -1541,6 +1541,11 @@ status = "disabled"; }; + tamp: tamp@5c00a000 { + compatible = "st,stm32-tamp", "syscon"; + reg = <0x5c00a000 0x400>; + }; + /* * Break node order to solve dependency probe issue between * pinctrl and exti. @@ -1717,6 +1722,8 @@ st,syscfg-holdboot = <&rcc 0x10C 0x1>; st,syscfg-tz = <&rcc 0x000 0x1>; st,syscfg-pdds = <&pwr_mcu 0x0 0x1>; + st,syscfg-rsc-tbl = <&tamp 0x144 0xFFFFFFFF>; + st,syscfg-m4-state = <&tamp 0x148 0xFFFFFFFF>; status = "disabled"; }; };