From patchwork Fri Jun 12 22:49:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suman Anna X-Patchwork-Id: 11602325 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4C78C912 for ; Fri, 12 Jun 2020 22:50:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 31C612078A for ; Fri, 12 Jun 2020 22:50:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="B9tLRvhg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726441AbgFLWtj (ORCPT ); Fri, 12 Jun 2020 18:49:39 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:49208 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726268AbgFLWtg (ORCPT ); Fri, 12 Jun 2020 18:49:36 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 05CMnU3e103490; Fri, 12 Jun 2020 17:49:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1592002170; bh=or5Y94/hVNDzY9xAF8kMc/vLk2IYUaANgfagMRDiMbA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=B9tLRvhgT6QbcRaDeyZRpPInZ4YNbeS+qe44/kLwN4/jD/5B6TjLcazHupWY9eQKT x0epICEZ1CW0iQcykRJyxuoYdbGwxGfkZWqNfmOU+b/9y8cWijQ12c1vIQ+7uYppgD x4BycaY4VbDGdfKDKu/TUwY7pdyDdw6vhHnB5Fwc= Received: from DLEE109.ent.ti.com (dlee109.ent.ti.com [157.170.170.41]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 05CMnUQb046046; Fri, 12 Jun 2020 17:49:30 -0500 Received: from DLEE112.ent.ti.com (157.170.170.23) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Fri, 12 Jun 2020 17:49:30 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE112.ent.ti.com (157.170.170.23) 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; Fri, 12 Jun 2020 17:49:30 -0500 Received: from fllv0103.dal.design.ti.com (fllv0103.dal.design.ti.com [10.247.120.73]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 05CMnUMr089837; Fri, 12 Jun 2020 17:49:30 -0500 Received: from localhost ([10.250.48.148]) by fllv0103.dal.design.ti.com (8.14.7/8.14.7) with ESMTP id 05CMnUPH062182; Fri, 12 Jun 2020 17:49:30 -0500 From: Suman Anna To: Bjorn Andersson , Rob Herring , Mathieu Poirier CC: Lokesh Vutla , Grzegorz Jaszczyk , , , , , Suman Anna Subject: [PATCH v3 4/6] dt-bindings: remoteproc: Add bindings for C66x DSPs on TI K3 SoCs Date: Fri, 12 Jun 2020 17:49:12 -0500 Message-ID: <20200612224914.7634-5-s-anna@ti.com> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200612224914.7634-1-s-anna@ti.com> References: <20200612224914.7634-1-s-anna@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Some Texas Instruments K3 family of SoCs have one of more Digital Signal Processor (DSP) subsystems that are comprised of either a TMS320C66x CorePac and/or a next-generation TMS320C71x CorePac processor subsystem. Add the device tree bindings document for the C66x DSP devices on these SoCs. The added example illustrates the DT nodes for the first C66x DSP device present on the K3 J721E family of SoCs. Signed-off-by: Suman Anna Reviewed-by: Rob Herring --- v3: - Refactored the common ti-sci properties "ti,sci", "ti,sci-dev-id" and "ti,sci-proc-ids" into a separate binding ti,k3-sci-proc.yaml. - Dropped the general description and maxItems against reg and reg-names - Added items list under reg - Removed the other binding references from the description for resets and mboxes - Revised the memory-region description and listed the mandatory items - Updated example to drop reserved-memory nodes, unused node labels v2: https://patchwork.kernel.org/patch/11561781/ .../bindings/remoteproc/ti,k3-dsp-rproc.yaml | 139 ++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml new file mode 100644 index 000000000000..f03e88c42a6e --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml @@ -0,0 +1,139 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/ti,k3-dsp-rproc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI K3 DSP devices + +maintainers: + - Suman Anna + +description: | + The TI K3 family of SoCs usually have one or more TI DSP Core sub-systems + that are used to offload some of the processor-intensive tasks or algorithms, + for achieving various system level goals. + + These processor sub-systems usually contain additional sub-modules like + L1 and/or L2 caches/SRAMs, an Interrupt Controller, an external memory + controller, a dedicated local power/sleep controller etc. The DSP processor + cores in the K3 SoCs are usually either a TMS320C66x CorePac processor or a + TMS320C71x CorePac processor. + + Each DSP Core sub-system is represented as a single DT node. Each node has a + number of required or optional properties that enable the OS running on the + host processor (Arm CorePac) to perform the device management of the remote + processor and to communicate with the remote processor. + +allOf: + - $ref: "ti,k3-sci-proc.yaml#" + +properties: + compatible: + const: ti,j721e-c66-dsp + description: + Use "ti,j721e-c66-dsp" for C66x DSPs on K3 J721E SoCs + + reg: + items: + - description: Address and Size of the L2 SRAM internal memory region + - description: Address and Size of the L1 PRAM internal memory region + - description: Address and Size of the L1 DRAM internal memory region + + reg-names: + items: + - const: l2sram + - const: l1pram + - const: l1dram + + resets: + description: | + Should contain the phandle to the reset controller node managing the + local resets for this device, and a reset specifier. + maxItems: 1 + + firmware-name: + description: | + Should contain the name of the default firmware image + file located on the firmware search path + + mboxes: + description: | + OMAP Mailbox specifier denoting the sub-mailbox, to be used for + communication with the remote processor. This property should match + with the sub-mailbox node used in the firmware image. + maxItems: 1 + + memory-region: + minItems: 2 + maxItems: 8 + description: | + phandle to the reserved memory nodes to be associated with the remoteproc + device. There should be at least two reserved memory nodes defined. The + reserved memory nodes should be carveout nodes, and should be defined as + per the bindings in + Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt + items: + - description: region used for dynamic DMA allocations like vrings and + vring buffers + - description: region reserved for firmware image sections + additionalItems: true + +# Optional properties: +# -------------------- + + sram: + $ref: /schemas/types.yaml#/definitions/phandle-array + minItems: 1 + maxItems: 4 + description: | + phandles to one or more reserved on-chip SRAM regions. The regions + should be defined as child nodes of the respective SRAM node, and + should be defined as per the generic bindings in, + Documentation/devicetree/bindings/sram/sram.yaml + +required: + - compatible + - reg + - reg-names + - resets + - firmware-name + - mboxes + - memory-region + +unevaluatedProperties: false + +examples: + - | + / { + model = "Texas Instruments K3 J721E SoC"; + compatible = "ti,j721e"; + #address-cells = <2>; + #size-cells = <2>; + + bus@100000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0x00 0x00100000 0x00 0x00100000 0x00 0x00020000>, /* ctrl mmr */ + <0x4d 0x80800000 0x4d 0x80800000 0x00 0x00800000>, /* C66_0 */ + <0x4d 0x81800000 0x4d 0x81800000 0x00 0x00800000>; /* C66_1 */ + + /* J721E C66_0 DSP node */ + dsp@4d80800000 { + compatible = "ti,j721e-c66-dsp"; + reg = <0x4d 0x80800000 0x00 0x00048000>, + <0x4d 0x80e00000 0x00 0x00008000>, + <0x4d 0x80f00000 0x00 0x00008000>; + reg-names = "l2sram", "l1pram", "l1dram"; + ti,sci = <&dmsc>; + ti,sci-dev-id = <142>; + ti,sci-proc-ids = <0x03 0xFF>; + resets = <&k3_reset 142 1>; + firmware-name = "j7-c66_0-fw"; + memory-region = <&c66_0_dma_memory_region>, + <&c66_0_memory_region>; + mboxes = <&mailbox0_cluster3 &mbox_c66_0>; + }; + }; + };