From nobody Tue Feb 10 04:32:51 2026 Received: from lelvem-ot01.ext.ti.com (lelvem-ot01.ext.ti.com [198.47.23.234]) (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 ED9D71DE892; Mon, 28 Apr 2025 07:21:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.23.234 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745824891; cv=none; b=gpMvvGLyY4k1cRKN3EFRjRKY0Yj+1BF7lIwcj80CCseBTuU4yIFOgRKt3gAwFAIEPQBIN31wkuWx3ZskBj3hFtdU7tbJDLQ5inKIYqMCFYyWumCBXT/NEVgSI5HzEnsKWKh9ClSGG+ftTlbdp+r1YvX7L7V7Uw7oNtBvCJuYTRg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745824891; c=relaxed/simple; bh=e41CFdgQUEAxPvzmXET0SVjM34QoLgMk/Ehiricj41o=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ufds7rpNT9zOrN0io5LjRr0kAYpfFVwjbtEphdiAVQ7h4sblX37q3HDCzGdmj0wbCjA8lZXSmj2OFDim5IHEMi+Xgz8JH9ZZjtK/oNQIz9HtV89ayIEgtpd2DDJVMWSk1t4dZYHkMx8Us4PqgEc5sqZO6Dkom4tshKUmD9LGW3s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=J6Fk5y0X; arc=none smtp.client-ip=198.47.23.234 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="J6Fk5y0X" Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelvem-ot01.ext.ti.com (8.15.2/8.15.2) with ESMTPS id 53S7L3pH2713970 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 28 Apr 2025 02:21:03 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1745824863; bh=rWm00ecZW//noVOBD0ZolXeFNkMKumFFuTm6AnT3FXY=; h=From:To:Subject:Date:In-Reply-To:References; b=J6Fk5y0XLegsHh1dF41d7vojDkM91lABDPgLF91MmFeeM3z+OUxejL7sfBDVSXYp4 i7AS7nEzJZ++wY6GpWlaofBhm3KsZ1C4zzC0FmcdRCx6oiRwCJ6pKUkc3Iup/dL2xu jEb3LDnOxv58lnmw4MAX5ZG7JHlgBwK85H9KorcI= Received: from DFLE115.ent.ti.com (dfle115.ent.ti.com [10.64.6.36]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 53S7L3dh121356 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 28 Apr 2025 02:21:03 -0500 Received: from DFLE107.ent.ti.com (10.64.6.28) by DFLE115.ent.ti.com (10.64.6.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Mon, 28 Apr 2025 02:21:02 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DFLE107.ent.ti.com (10.64.6.28) 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; Mon, 28 Apr 2025 02:21:02 -0500 Received: from uda0498651.dhcp.ti.com (uda0498651.dhcp.ti.com [172.24.227.7]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 53S7KdMb068873; Mon, 28 Apr 2025 02:20:58 -0500 From: Sai Sree Kartheek Adivi To: , , , , , , , , , , , , , , , Subject: [PATCH 2/8] dt-bindings: dma: ti: Add document for K3 PKTDMA V2 Date: Mon, 28 Apr 2025 12:50:26 +0530 Message-ID: <20250428072032.946008-3-s-adivi@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250428072032.946008-1-s-adivi@ti.com> References: <20250428072032.946008-1-s-adivi@ti.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea Content-Type: text/plain; charset="utf-8" New binding document for Texas Instruments K3 Packet DMA (PKTDMA) V2. PKTDMA V2 is introduced as part of AM62L. Signed-off-by: Sai Sree Kartheek Adivi --- .../bindings/dma/ti/k3-pktdma-v2.yaml | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/ti/k3-pktdma-v2.y= aml diff --git a/Documentation/devicetree/bindings/dma/ti/k3-pktdma-v2.yaml b/D= ocumentation/devicetree/bindings/dma/ti/k3-pktdma-v2.yaml new file mode 100644 index 0000000000000..a6aae96af44df --- /dev/null +++ b/Documentation/devicetree/bindings/dma/ti/k3-pktdma-v2.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2024-2025 Texas Instruments Incorporated +# Author: Sai Sree Kartheek Adivi +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/ti/k3-pktdma-v2.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments K3 DMSS PKTDMA V2 + +maintainers: + - Sai Sree Kartheek Adivi + +description: | + The PKTDMA V2 is intended to perform similar functions as the packet + mode channels of K3 UDMA-P. + PKTDMA V2 only includes Split channels to service PSI-L based peripheral= s. + + The peripherals can be PSI-L native or legacy, non PSI-L native peripher= als + with PDMAs. PDMA is tasked to act as a bridge between the PSI-L fabric a= nd the + legacy peripheral. + +allOf: + - $ref: /schemas/dma/dma-controller.yaml# + +properties: + compatible: + const: ti,dmss-pktdma-v2 + + "#dma-cells": + const: 2 + description: | + cell 1: Channel number for the peripheral + + Please refer to the device documentation for the channel map. + + cell 2: ASEL value for the channel + + reg: + items: + - description: Packet DMA Control /Status Registers region + - description: Channel Realtime Registers region + - description: Ring Realtime Registers region + + reg-names: + items: + - const: gcfg + - const: chanrt + - const: ringrt + +required: + - compatible + - "#dma-cells" + - reg + - reg-names + +unevaluatedProperties: false + +examples: + - |+ + cbass_main { + #address-cells =3D <2>; + #size-cells =3D <2>; + + main_pktdma: dma-controller@485c0000 { + compatible =3D "ti,dmss-pktdma-v2"; + reg =3D <0x00 0x485c0000 0x00 0x4000>, + <0x00 0x48900000 0x00 0x80000>, + <0x00 0x47200000 0x00 0x100000>; + reg-names =3D "gcfg", "chanrt", "ringrt"; + #dma-cells =3D <2>; + }; + }; --=20 2.34.1