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Wed, 19 Aug 2020 20:03:42 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Wed, 19 Aug 2020 20:03:41 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Wed, 19 Aug 2020 20:03:41 -0500 Received: from fllv0103.dal.design.ti.com (fllv0103.dal.design.ti.com [10.247.120.73]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 07K13fQk121623; Wed, 19 Aug 2020 20:03:41 -0500 Received: from localhost ([10.250.32.29]) by fllv0103.dal.design.ti.com (8.14.7/8.14.7) with ESMTP id 07K13fiF022556; Wed, 19 Aug 2020 20:03:41 -0500 From: Suman Anna To: Nishanth Menon , Tero Kristo Subject: [PATCH 7/7] arm64: dts: ti: k3-j721e-som-p0: Reserve memory for IPC between RTOS cores Date: Wed, 19 Aug 2020 20:03:31 -0500 Message-ID: <20200820010331.2911-8-s-anna@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200820010331.2911-1-s-anna@ti.com> References: <20200820010331.2911-1-s-anna@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200819_210342_690151_BF597708 X-CRM114-Status: GOOD ( 11.26 ) X-Spam-Score: -2.5 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [198.47.23.248 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -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 -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender 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: devicetree@vger.kernel.org, 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 Add a reserved memory node to reserve a portion of the DDR memory to be used for performing inter-processor communication between all the remote processors running RTOS on the TI J721E EVM boards. 28 MB of memory is reserved for this purpose, and this accounts for all the vrings and vring buffers between all the possible pairs of remote processors. Signed-off-by: Suman Anna --- arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi index 600586cc22e5..d30a06248027 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi @@ -61,6 +61,12 @@ c71_0_memory_region: c71-memory@a8100000 { reg = <0x00 0xa8100000 0x00 0xf00000>; no-map; }; + + rtos_ipc_memory_region: ipc-memories@aa000000 { + reg = <0x00 0xaa000000 0x00 0x01c00000>; + alignment = <0x1000>; + no-map; + }; }; };