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Thu, 13 Feb 2020 04:04:35 +0000 From: peng.fan@nxp.com To: sudeep.holla@arm.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: viresh.kumar@linaro.org, f.fainelli@gmail.com, linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, andre.przywara@arm.com, Peng Fan Subject: [PATCH V2 0/2] firmware: arm_scmi: add smc/hvc transports support Date: Thu, 13 Feb 2020 11:58:48 +0800 Message-Id: <1581566330-1029-1-git-send-email-peng.fan@nxp.com> X-Mailer: git-send-email 2.7.4 Content-Type: text/plain X-ClientProxiedBy: HK2PR03CA0056.apcprd03.prod.outlook.com (2603:1096:202:17::26) To AM0PR04MB4481.eurprd04.prod.outlook.com (2603:10a6:208:70::15) MIME-Version: 1.0 Received: from localhost.localdomain (119.31.174.66) by HK2PR03CA0056.apcprd03.prod.outlook.com (2603:1096:202:17::26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2729.12 via Frontend Transport; Thu, 13 Feb 2020 04:04:32 +0000 X-Mailer: git-send-email 2.7.4 X-Originating-IP: [119.31.174.66] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 790923b7-353a-4fac-32b2-08d7b039d690 X-MS-TrafficTypeDiagnostic: AM0PR04MB5220:|AM0PR04MB5220: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8882; 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SCMI firmware could be implemented in EL3, S-EL1, NS-EL2 or other A core exception level. Then smc/hvc could be used. And for vendor specific firmware, a wrapper layer could added in EL3, S-EL1, NS-EL2 and etc to translate SCMI calls to vendor specific firmware calls. A new compatible string arm,scmi-smc is added. arm,scmi is still for mailbox transports. All protocol share same smc/hvc id, the protocol id will be take as 2nd arg when issue smc/hvc. Each protocol could use its own shmem or share the same shmem Per smc/hvc, only Tx supported. Peng Fan (2): dt-bindings: arm: arm,scmi: add smc/hvc transports firmware: arm_scmi: add smc/hvc transports Documentation/devicetree/bindings/arm/arm,scmi.txt | 1 + drivers/firmware/arm_scmi/Makefile | 2 +- drivers/firmware/arm_scmi/common.h | 4 +- drivers/firmware/arm_scmi/driver.c | 11 +- drivers/firmware/arm_scmi/mailbox.c | 2 +- drivers/firmware/arm_scmi/smc.c | 222 +++++++++++++++++++++ 6 files changed, 235 insertions(+), 7 deletions(-) create mode 100644 drivers/firmware/arm_scmi/smc.c -- 2.16.4