From patchwork Wed Jun 1 11:21:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tinghan Shen X-Patchwork-Id: 12866778 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 83B26649 for ; Wed, 1 Jun 2022 11:22:20 +0000 (UTC) X-UUID: ac5e663d48a34bb789d11d8ef291f551-20220601 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.5,REQID:109751f4-9156-42c6-b2ae-b41d6137d2a7,OB:0,LO B:0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACTI ON:release,TS:0 X-CID-META: VersionHash:2a19b09,CLOUDID:b990268a-32d7-4fc0-b2ef-8776ac194f8f,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil ,QS:0,BEC:nil X-UUID: ac5e663d48a34bb789d11d8ef291f551-20220601 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 736326214; Wed, 01 Jun 2022 19:22:05 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Wed, 1 Jun 2022 19:22:04 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 1 Jun 2022 19:22:04 +0800 From: Tinghan Shen To: Bjorn Andersson , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Matthias Brugger , Lee Jones , Benson Leung , Guenter Roeck , Daisuke Nojiri , Sebastian Reichel , "Dustin L. Howett" , Tzung-Bi Shih , Tinghan Shen , "Gustavo A. R. Silva" , Prashant Malani , Enric Balletbo i Serra , Brian Norris CC: , , , , , , , Subject: [PATCH v1 01/15] dt-binding: remoteproc: mediatek: Support dual-core SCP Date: Wed, 1 Jun 2022 19:21:47 +0800 Message-ID: <20220601112201.15510-2-tinghan.shen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220601112201.15510-1-tinghan.shen@mediatek.com> References: <20220601112201.15510-1-tinghan.shen@mediatek.com> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MTK: N The SCP co-processor is a dual-core RISC-V MCU on MT8195. Add a new property to identify each core and helps to find drivers through device tree API to cooperate with each other, e.g. boot flow and watchdog timeout flow. Add a new compatile for the driver of SCP 2nd core. Signed-off-by: Tinghan Shen --- .../devicetree/bindings/remoteproc/mtk,scp.yaml | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml index eec3b9c4c713..b181786d9575 100644 --- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml +++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml @@ -20,6 +20,7 @@ properties: - mediatek,mt8186-scp - mediatek,mt8192-scp - mediatek,mt8195-scp + - mediatek,mt8195-scp-dual reg: description: @@ -57,6 +58,16 @@ properties: memory-region: maxItems: 1 + mediatek,scp-core: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + The property value is a list with 2 items, a core id and a phandle + to the sibling SCP node. The core id represents the id of the dts node contains + this property. The valid values of core id are 0 and 1 for dual-core SCP. + The phandle of sibling SCP node is used to find the register settings, + trigger core dependent callback, and invoke rproc API. + maxItems: 1 + required: - compatible - reg @@ -115,6 +126,7 @@ examples: reg-names = "sram", "cfg", "l1tcm"; clocks = <&infracfg CLK_INFRA_SCPSYS>; clock-names = "main"; + mediatek,scp-core = <0 &scp_dual>; cros_ec { mediatek,rpmsg-name = "cros-ec-rpmsg";