From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELssksE2AuE0DWHTUB4Ff+ZLpU8JiB5U5d1ZukD/o7g5hs+5R5qRJSiYu5wLlOUr1rQ8szkW ARC-Seal: i=1; a=rsa-sha256; t=1519950204; cv=none; d=google.com; s=arc-20160816; b=On/QEu1ZvX6o4Rk1KOirBEoeu9K9QdzloHlaKd4ttA3bVDxWeVm+XypBda8IeJoJPN fJsOv5gokzAIOaXJbuDzOdOY7JQ7wlnHKxiGvoaD3l2cM7tf2VXo+bY+D0w7uq9QdZ8H h7qgc9tL3OfRiKnzMJ1MNel1lFv93gK38YMcnAn2H3UOoq5FIGqQ5IBpSrYE8tI52jjt nSphHtSG7If5/zuXPEB982QlBTaqWWOyBljRgMmXLeyxSSnZ6OY61JB2cJtbvOOR1o6U nJ1eNFnXjl0nh8/c3x3UFSMD2n4svwIlypKfEOt+8qwIDe/Zn0nxZwxVoisGlQavSdAn h1cQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :arc-authentication-results; bh=kyvQmzlDWEEAZE1c4J+CD3qOj0ZZvP2iXNc8AXOY2U0=; b=Oib5OczF0vCvjL7oW++D0EOnzgnmfYbbJGRliN7ut2ev8+ZG7u680HDG1few2sMP7Q Yo6qhoMjjVztIvuK2dl4z9qApZOfEqJtk6g0JkdRHeKAsGgLsoRstNQMOOHQEolO2Qwa eVMIP8LKWgKyOJ813pycF4eJJJ4SLqD2F/0+PVKlPwgQS/6AAhzLTbhKWngZMTZA6kMb J0lkBdPDHxKBX4Ut9dAAuiEfx5PyTYk5a2aEZwCcqnoHRZ177XCpqQMsfghJGjsB85UI tyPEe328kPxIz8N/Eudya9f4vVBHzH42BVAivXx8XR55YcnRxnFXndG7s8z/ImwMVsFf XdLg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of richard.gong@linux.intel.com designates 192.55.52.88 as permitted sender) smtp.mailfrom=richard.gong@linux.intel.com Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of richard.gong@linux.intel.com designates 192.55.52.88 as permitted sender) smtp.mailfrom=richard.gong@linux.intel.com X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.47,409,1515484800"; d="scan'208";a="35279639" From: richard.gong@linux.intel.com To: catalin.marinas@arm.com, will.deacon@arm.com, dinguyen@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, atull@kernel.org, mdf@kernel.org, arnd@arndb.de, gregkh@linuxfoundation.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-fpga@vger.kernel.org, yves.vandervennet@linux.intel.com, richard.gong@linux.intel.com, Richard Gong Subject: [PATCHv2 1/7] dt-bindings, firmware: add Intel Stratix10 service layer binding Date: Thu, 1 Mar 2018 18:19:29 -0600 Message-Id: <1519949975-13548-2-git-send-email-richard.gong@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1519949975-13548-1-git-send-email-richard.gong@linux.intel.com> References: <1519949975-13548-1-git-send-email-richard.gong@linux.intel.com> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1593783306027832989?= X-GMAIL-MSGID: =?utf-8?q?1593783306027832989?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Richard Gong Add a device tree binding for the Intel Stratix10 service layer driver Signed-off-by: Richard Gong Signed-off-by: Alan Tull --- v2: Change to put service layer driver node under the firmware node Change compatible to "intel, stratix10-svc" --- .../bindings/firmware/intel,stratix10-svc.txt | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/firmware/intel,stratix10-svc.txt diff --git a/Documentation/devicetree/bindings/firmware/intel,stratix10-svc.txt b/Documentation/devicetree/bindings/firmware/intel,stratix10-svc.txt new file mode 100644 index 0000000..1fa6606 --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/intel,stratix10-svc.txt @@ -0,0 +1,57 @@ +Intel Service Layer Driver for Stratix10 SoC +============================================ +Intel Stratix10 SoC is composed of a 64 bit quad-core ARM Cortex A53 hard +processor system (HPS) and Secure Device Manager (SDM). When the FPGA is +configured from HPS, there needs to be a way for HPS to notify SDM the +location and size of the configuration data. Then SDM will get the +configuration data from that location and perform the FPGA configuration. + +To meet the whole system security needs and support virtual machine requesting +communication with SDM, only the secure world of software (EL3, Exception +Layer 3) can interface with SDM. All software entities running on other +exception layers must channel through the EL3 software whenever it needs +service from SDM. + +Intel Stratix10 service layer driver, running at privileged exception level +(EL1, Exception Layer 1), interfaces with the service providers and provides +the services for FPGA configuration, QSPI, Crypto and warm reset. Service layer +driver also manages secure monitor call (SMC) to communicate with secure monitor +code running in EL3. + +Required properties: +------------------- +The svc node has the following mandatory properties, must be located under +the firmware node. + +- compatible: "intel,stratix10-svc" +- method: smc or hvc + smc - Secure Monitor Call + hvc - Hypervisor Call +- memory-region: + phandle to the reserved memory node. See + Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt + for details + +Example: +------- + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + service_reserved: svcbuffer@0 { + compatible = "shared-dma-pool"; + reg = <0x0 0x0 0x0 0x1000000>; + alignment = <0x1000>; + no-map; + }; + }; + + firmware { + svc { + compatible = "intel,stratix10-svc"; + method = "smc"; + memory-region = <&service_reserved>; + }; + }; -- 2.7.4