From patchwork Wed Sep 13 11:16:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hari Nagalla X-Patchwork-Id: 722311 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D68DEDEC47 for ; Wed, 13 Sep 2023 11:17:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239938AbjIMLRR (ORCPT ); Wed, 13 Sep 2023 07:17:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32928 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239867AbjIMLRQ (ORCPT ); Wed, 13 Sep 2023 07:17:16 -0400 Received: from fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 63B051BD1; Wed, 13 Sep 2023 04:17:12 -0700 (PDT) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 38DBGs67000730; Wed, 13 Sep 2023 06:16:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1694603814; bh=HhfGKbuWssf2fx9oKFogNLBxMiOL8pGozrOHmBzAozM=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=W3CxKEKvmpc+br3yA2AC94QrkNfa07YnOJKF5rtGSYO2L/+wj9J2HXI24fbWXLkp1 V/Mn8YG7ZG9hMB+m0BOkXQqSXN4rkgpc0kE/GDT6U/5O5yAitJXvFacoz5G/D+6qjx f+xhlNEvTUfGuPWnuAo+zhDp7qVWQ6lvQJBCYqmI= Received: from DLEE108.ent.ti.com (dlee108.ent.ti.com [157.170.170.38]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 38DBGsF9098072 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 13 Sep 2023 06:16:54 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Wed, 13 Sep 2023 06:16:54 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) 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 15.1.2507.23 via Frontend Transport; Wed, 13 Sep 2023 06:16:54 -0500 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 38DBGs9d074520; Wed, 13 Sep 2023 06:16:54 -0500 From: Hari Nagalla To: , , , , , , CC: , , , Subject: [PATCH v6 1/4] dt-bindings: remoteproc: k3-m4f: Add K3 AM64x SoCs Date: Wed, 13 Sep 2023 06:16:41 -0500 Message-ID: <20230913111644.29889-2-hnagalla@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230913111644.29889-1-hnagalla@ti.com> References: <20230913111644.29889-1-hnagalla@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org K3 AM64x SoC has a Cortex M4F subsystem in the MCU voltage domain. The remote processor's life cycle management and IPC mechanisms are similar across the R5F and M4F cores from remote processor driver point of view. However, there are subtle differences in image loading and starting the M4F subsystems. The YAML binding document provides the various node properties to be configured by the consumers of the M4F subsystem. Signed-off-by: Martyn Welch Signed-off-by: Hari Nagalla --- Changes since v1: - Spelling corrections - Corrected to pass DT checks Changes since v2: - Missed spelling correction to commit message Changes since v3: - Removed unnecessary descriptions and used generic memory region names - Made mboxes and memory-region optional - Removed unrelated items from examples Changes since v4: - Rebased to the latest kernel-next tree - Added optional sram memory region for m4f device node Changes since v5: - None .../bindings/remoteproc/ti,k3-m4f-rproc.yaml | 136 ++++++++++++++++++ 1 file changed, 136 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,k3-m4f-rproc.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/ti,k3-m4f-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/ti,k3-m4f-rproc.yaml new file mode 100644 index 000000000000..21b7f14d9dc4 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/ti,k3-m4f-rproc.yaml @@ -0,0 +1,136 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/ti,k3-m4f-rproc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI K3 M4F processor subsystems + +maintainers: + - Hari Nagalla + - Mathieu Poirier + +description: | + Some K3 family SoCs have Arm Cortex M4F cores. AM64x is a SoC in K3 + family with a M4F core. Typically safety oriented applications may use + the M4F core in isolation without an IPC. Where as some industrial and + home automation applications, may use the M4F core as a remote processor + with IPC communications. + +$ref: /schemas/arm/keystone/ti,k3-sci-common.yaml# + +properties: + + compatible: + enum: + - ti,am64-m4fss + + power-domains: + maxItems: 1 + + "#address-cells": + const: 2 + + "#size-cells": + const: 2 + + reg: + items: + - description: IRAM internal memory region + - description: DRAM internal memory region + + reg-names: + items: + - const: iram + - const: dram + + resets: + maxItems: 1 + + firmware-name: + $ref: /schemas/types.yaml#/definitions/string + description: Name of firmware to load for the M4F core + + mboxes: + description: | + 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: 2 + + memory-region: + description: | + phandle to the reserved memory nodes to be associated with the + remoteproc device. The reserved memory nodes should be carveout nodes, + and should be defined with a "no-map" property as per the bindings in + Documentation/devicetree/bindings/reserved-memory/reserved-memory.yaml + Optional memory regions available for firmware specific purposes. + maxItems: 8 + items: + - description: regions used for DMA allocations like vrings, vring buffers + and memory dedicated to firmware's specific purposes. + additionalItems: true + + sram: + $ref: /schemas/types.yaml#/definitions/phandle-array + minItems: 1 + maxItems: 4 + items: + 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 + - ti,sci + - ti,sci-dev-id + - ti,sci-proc-ids + - resets + - firmware-name + +unevaluatedProperties: false + +examples: + - | + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + + mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9cb00000 0x00 0x100000>; + no-map; + }; + + mcu_m4fss_memory_region: m4f-memory@9cc00000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9cc00000 0x00 0xe00000>; + no-map; + }; + }; + + soc { + #address-cells = <2>; + #size-cells = <2>; + + remoteproc@5000000 { + compatible = "ti,am64-m4fss"; + reg = <0x00 0x5000000 0x00 0x30000>, + <0x00 0x5040000 0x00 0x10000>; + reg-names = "iram", "dram"; + ti,sci = <&dmsc>; + ti,sci-dev-id = <9>; + ti,sci-proc-ids = <0x18 0xff>; + resets = <&k3_reset 9 1>; + firmware-name = "am62-mcu-m4f0_0-fw"; + mboxes = <&mailbox0_cluster0>, <&mbox_m4_0>; + memory-region = <&mcu_m4fss_dma_memory_region>, + <&mcu_m4fss_memory_region>; + sram = <&oc_sram>; + }; + };