From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E883EC4742A for ; Wed, 30 Sep 2020 09:15:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 96DA42075F for ; Wed, 30 Sep 2020 09:15:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="RfwzJkNp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729068AbgI3JPW (ORCPT ); Wed, 30 Sep 2020 05:15:22 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:35132 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729038AbgI3JOb (ORCPT ); Wed, 30 Sep 2020 05:14:31 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 08U9EQdL035044; Wed, 30 Sep 2020 04:14:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1601457266; bh=pcsvG8Wes2t4bU1KP19bSuHVD+XfFqvrO0hd8Cj0z4U=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=RfwzJkNpPssNDkanfcY42/t66tnWUa7mRrhWRncw3Ew6NNWZDhenUa9uxzBbyBAZd CAPRv5WiaxySFS3t3C1Pwk0XBHhN9HTRDb34LEQNotdqL45x8adl0YvL59p/u/7O+2 PXqt3fQRZZfeuTjmaJNKYRd7LDmgeUzLu/SRWe2c= Received: from DFLE104.ent.ti.com (dfle104.ent.ti.com [10.64.6.25]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 08U9EQfa111915 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 30 Sep 2020 04:14:26 -0500 Received: from DFLE114.ent.ti.com (10.64.6.35) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Wed, 30 Sep 2020 04:14:25 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE114.ent.ti.com (10.64.6.35) 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; Wed, 30 Sep 2020 04:14:25 -0500 Received: from feketebors.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 08U9DuJg116385; Wed, 30 Sep 2020 04:14:23 -0500 From: Peter Ujfalusi To: , , , , CC: , , , , , , Subject: [PATCH 09/18] dt-bindings: dma: ti: Add document for K3 BCDMA Date: Wed, 30 Sep 2020 12:14:03 +0300 Message-ID: <20200930091412.8020-10-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200930091412.8020-1-peter.ujfalusi@ti.com> References: <20200930091412.8020-1-peter.ujfalusi@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org New binding document for Texas Instruments K3 Block Copy DMA (BCDMA). BCDMA is introduced as part of AM64. Signed-off-by: Peter Ujfalusi --- .../devicetree/bindings/dma/ti/k3-bcdma.yaml | 183 ++++++++++++++++++ 1 file changed, 183 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml diff --git a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml new file mode 100644 index 000000000000..c84fb641738f --- /dev/null +++ b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml @@ -0,0 +1,183 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/ti/k3-bcdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments K3 DMSS BCDMA Device Tree Bindings + +maintainers: + - Peter Ujfalusi + +description: | + The Block Copy DMA (BCDMA) is intended to perform similar functions as the TR + mode channels of K3 UDMA-P. + BCDMA includes block copy channels and Split channels. + + Block copy channels mainly used for memory to memory transfers, but with + optional triggers a block copy channel can service peripherals by accessing + directly to memory mapped registers or area. + + Split channels can be used to service PSI-L based peripherals. + The peripherals can be PSI-L native or legacy, non PSI-L native peripherals + with PDMAs. PDMA is tasked to act as a bridge between the PSI-L fabric and the + legacy peripheral. + + PDMAs can be configured via BCDMA split channel's peer registers to match with + the configuration of the legacy peripheral. + +allOf: + - $ref: /schemas/dma/dma-controller.yaml# + +properties: + "#dma-cells": + const: 3 + description: | + cell 1: type of the BCDMA channel to be used to service the peripheral: + 0 - split channel + 1 - block copy channel using global trigger 1 + 2 - block copy channel using global trigger 2 + 3 - block copy channel using local trigger + + cell 2: parameter for the channel: + if cell 1 is 0 (split channel): + PSI-L thread ID of the remote (to BCDMA) end. + Valid ranges for thread ID depends on the data movement direction: + for source thread IDs (rx): 0 - 0x7fff + for destination thread IDs (tx): 0x8000 - 0xffff + + Please refer to the device documentation for the PSI-L thread map and + also the PSI-L peripheral chapter for the correct thread ID. + if cell 1 is 1 or 2 (block copy channel using global trigger): + Unused, ignored + + The trigger must be configured for the channel externally to BCDMA, + channels using global triggers should not be requested directly, but + via DMA event router. + if cell 1 is 3 (block copy channel using local trigger): + bchan number of the locally triggered channel + + cell 3: ASEL value for the channel + + compatible: + enum: + - ti,am64-dmss-bcdma + + "#address-cells": + const: 2 + + "#size-cells": + const: 2 + + reg: + maxItems: 5 + + reg-names: + items: + - const: gcfg + - const: bchanrt + - const: rchanrt + - const: tchanrt + - const: ringrt + + msi-parent: true + + ti,sci: + description: phandle to TI-SCI compatible System controller node + allOf: + - $ref: /schemas/types.yaml#/definitions/phandle + + ti,sci-dev-id: + description: TI-SCI device id of BCDMA + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + + ti,asel: + description: ASEL value for non slave channels + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + + ti,sci-rm-range-bchan: + description: | + Array of BCDMA block-copy channel resource subtypes for resource + allocation for this host + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + # Should be enough + maxItems: 255 + + ti,sci-rm-range-tchan: + description: | + Array of BCDMA split tx channel resource subtypes for resource allocation + for this host + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + # Should be enough + maxItems: 255 + + ti,sci-rm-range-rchan: + description: | + Array of BCDMA split rx channel resource subtypes for resource allocation + for this host + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + # Should be enough + maxItems: 255 + +required: + - compatible + - "#address-cells" + - "#size-cells" + - "#dma-cells" + - reg + - reg-names + - msi-parent + - ti,sci + - ti,sci-dev-id + - ti,sci-rm-range-bchan + - ti,sci-rm-range-tchan + - ti,sci-rm-range-rchan + +additionalProperties: false + +examples: + - |+ + cbass_main { + #address-cells = <2>; + #size-cells = <2>; + + main_dmss { + compatible = "simple-mfd"; + #address-cells = <2>; + #size-cells = <2>; + dma-ranges; + ranges; + + ti,sci-dev-id = <25>; + + main_bcdma: dma-controller@485c0100 { + compatible = "ti,am64-dmss-bcdma"; + #address-cells = <2>; + #size-cells = <2>; + + reg = <0x0 0x485c0100 0x0 0x100>, + <0x0 0x4c000000 0x0 0x20000>, + <0x0 0x4a820000 0x0 0x20000>, + <0x0 0x4aa40000 0x0 0x20000>, + <0x0 0x4bc00000 0x0 0x100000>; + reg-names = "gcfg", "bchanrt", "rchanrt", "tchanrt", "ringrt"; + msi-parent = <&inta_main_dmss>; + #dma-cells = <3>; + + ti,sci = <&dmsc>; + ti,sci-dev-id = <26>; + + ti,sci-rm-range-bchan = <0x20>; /* BLOCK_COPY_CHAN */ + ti,sci-rm-range-rchan = <0x21>; /* SPLIT_TR_RX_CHAN */ + ti,sci-rm-range-tchan = <0x22>; /* SPLIT_TR_TX_CHAN */ + }; + }; + }; -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. 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Wed, 30 Sep 2020 04:14:26 -0500 Received: from DFLE114.ent.ti.com (10.64.6.35) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Wed, 30 Sep 2020 04:14:25 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE114.ent.ti.com (10.64.6.35) 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; Wed, 30 Sep 2020 04:14:25 -0500 Received: from feketebors.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 08U9DuJg116385; Wed, 30 Sep 2020 04:14:23 -0500 From: Peter Ujfalusi To: , , , , Subject: [PATCH 09/18] dt-bindings: dma: ti: Add document for K3 BCDMA Date: Wed, 30 Sep 2020 12:14:03 +0300 Message-ID: <20200930091412.8020-10-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200930091412.8020-1-peter.ujfalusi@ti.com> References: <20200930091412.8020-1-peter.ujfalusi@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200930_051428_890120_7188C032 X-CRM114-Status: GOOD ( 19.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, lokeshvutla@ti.com, linux-kernel@vger.kernel.org, t-kristo@ti.com, dmaengine@vger.kernel.org, dan.j.williams@intel.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org New binding document for Texas Instruments K3 Block Copy DMA (BCDMA). BCDMA is introduced as part of AM64. Signed-off-by: Peter Ujfalusi --- .../devicetree/bindings/dma/ti/k3-bcdma.yaml | 183 ++++++++++++++++++ 1 file changed, 183 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml diff --git a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml new file mode 100644 index 000000000000..c84fb641738f --- /dev/null +++ b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml @@ -0,0 +1,183 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/ti/k3-bcdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments K3 DMSS BCDMA Device Tree Bindings + +maintainers: + - Peter Ujfalusi + +description: | + The Block Copy DMA (BCDMA) is intended to perform similar functions as the TR + mode channels of K3 UDMA-P. + BCDMA includes block copy channels and Split channels. + + Block copy channels mainly used for memory to memory transfers, but with + optional triggers a block copy channel can service peripherals by accessing + directly to memory mapped registers or area. + + Split channels can be used to service PSI-L based peripherals. + The peripherals can be PSI-L native or legacy, non PSI-L native peripherals + with PDMAs. PDMA is tasked to act as a bridge between the PSI-L fabric and the + legacy peripheral. + + PDMAs can be configured via BCDMA split channel's peer registers to match with + the configuration of the legacy peripheral. + +allOf: + - $ref: /schemas/dma/dma-controller.yaml# + +properties: + "#dma-cells": + const: 3 + description: | + cell 1: type of the BCDMA channel to be used to service the peripheral: + 0 - split channel + 1 - block copy channel using global trigger 1 + 2 - block copy channel using global trigger 2 + 3 - block copy channel using local trigger + + cell 2: parameter for the channel: + if cell 1 is 0 (split channel): + PSI-L thread ID of the remote (to BCDMA) end. + Valid ranges for thread ID depends on the data movement direction: + for source thread IDs (rx): 0 - 0x7fff + for destination thread IDs (tx): 0x8000 - 0xffff + + Please refer to the device documentation for the PSI-L thread map and + also the PSI-L peripheral chapter for the correct thread ID. + if cell 1 is 1 or 2 (block copy channel using global trigger): + Unused, ignored + + The trigger must be configured for the channel externally to BCDMA, + channels using global triggers should not be requested directly, but + via DMA event router. + if cell 1 is 3 (block copy channel using local trigger): + bchan number of the locally triggered channel + + cell 3: ASEL value for the channel + + compatible: + enum: + - ti,am64-dmss-bcdma + + "#address-cells": + const: 2 + + "#size-cells": + const: 2 + + reg: + maxItems: 5 + + reg-names: + items: + - const: gcfg + - const: bchanrt + - const: rchanrt + - const: tchanrt + - const: ringrt + + msi-parent: true + + ti,sci: + description: phandle to TI-SCI compatible System controller node + allOf: + - $ref: /schemas/types.yaml#/definitions/phandle + + ti,sci-dev-id: + description: TI-SCI device id of BCDMA + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + + ti,asel: + description: ASEL value for non slave channels + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + + ti,sci-rm-range-bchan: + description: | + Array of BCDMA block-copy channel resource subtypes for resource + allocation for this host + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + # Should be enough + maxItems: 255 + + ti,sci-rm-range-tchan: + description: | + Array of BCDMA split tx channel resource subtypes for resource allocation + for this host + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + # Should be enough + maxItems: 255 + + ti,sci-rm-range-rchan: + description: | + Array of BCDMA split rx channel resource subtypes for resource allocation + for this host + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + # Should be enough + maxItems: 255 + +required: + - compatible + - "#address-cells" + - "#size-cells" + - "#dma-cells" + - reg + - reg-names + - msi-parent + - ti,sci + - ti,sci-dev-id + - ti,sci-rm-range-bchan + - ti,sci-rm-range-tchan + - ti,sci-rm-range-rchan + +additionalProperties: false + +examples: + - |+ + cbass_main { + #address-cells = <2>; + #size-cells = <2>; + + main_dmss { + compatible = "simple-mfd"; + #address-cells = <2>; + #size-cells = <2>; + dma-ranges; + ranges; + + ti,sci-dev-id = <25>; + + main_bcdma: dma-controller@485c0100 { + compatible = "ti,am64-dmss-bcdma"; + #address-cells = <2>; + #size-cells = <2>; + + reg = <0x0 0x485c0100 0x0 0x100>, + <0x0 0x4c000000 0x0 0x20000>, + <0x0 0x4a820000 0x0 0x20000>, + <0x0 0x4aa40000 0x0 0x20000>, + <0x0 0x4bc00000 0x0 0x100000>; + reg-names = "gcfg", "bchanrt", "rchanrt", "tchanrt", "ringrt"; + msi-parent = <&inta_main_dmss>; + #dma-cells = <3>; + + ti,sci = <&dmsc>; + ti,sci-dev-id = <26>; + + ti,sci-rm-range-bchan = <0x20>; /* BLOCK_COPY_CHAN */ + ti,sci-rm-range-rchan = <0x21>; /* SPLIT_TR_RX_CHAN */ + ti,sci-rm-range-tchan = <0x22>; /* SPLIT_TR_TX_CHAN */ + }; + }; + }; -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel