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=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 5FE86C4361B for ; Mon, 14 Dec 2020 09:31:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0E29822AAA for ; Mon, 14 Dec 2020 09:31:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729424AbgLNJaz (ORCPT ); Mon, 14 Dec 2020 04:30:55 -0500 Received: from ns2.baikalelectronics.ru ([94.125.187.42]:46158 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2407403AbgLNJRK (ORCPT ); Mon, 14 Dec 2020 04:17:10 -0500 From: Serge Semin To: Rob Herring , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Jakub Kicinski , Johan Hovold , Maxime Ripard , Joao Pinto , Lars Persson CC: Serge Semin , Serge Semin , Alexey Malahov , Pavel Parkhomenko , Vyacheslav Mitrofanov , Maxime Coquelin , , , , , Subject: [PATCH 01/25] dt-bindings: net: dwmac: Validate PBL for all IP-cores Date: Mon, 14 Dec 2020 12:15:51 +0300 Message-ID: <20201214091616.13545-2-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20201214091616.13545-1-Sergey.Semin@baikalelectronics.ru> References: <20201214091616.13545-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Indeed the maximum DMA burst length can be programmed not only for DW xGMACs, Allwinner EMACs and Spear SoC GMAC, but in accordance with [1] for Generic DW *MAC IP-cores. Moreover the STMMAC set of drivers parse the property and then apply the configuration for all supported DW MAC devices. All of that makes the property being available for all IP-cores the bindings supports. Let's make sure the PBL-related properties are validated for all of them by the common DW MAC DT schema. [1] DesignWare Cores Ethernet MAC Universal Databook, Revision 3.73a, October 2013, p. 380. Signed-off-by: Serge Semin --- .../devicetree/bindings/net/snps,dwmac.yaml | 69 +++++++------------ 1 file changed, 26 insertions(+), 43 deletions(-) diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml index 11a6fdb657c9..4b672499f20d 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -262,6 +262,32 @@ properties: is supported. For example, this is used in case of SGMII and MAC2MAC connection. + snps,pbl: + description: + Programmable Burst Length (tx and rx) + $ref: /schemas/types.yaml#definitions/uint32 + enum: [2, 4, 8] + + snps,txpbl: + description: + Tx Programmable Burst Length. If set, DMA tx will use this + value rather than snps,pbl. + $ref: /schemas/types.yaml#definitions/uint32 + enum: [2, 4, 8] + + snps,rxpbl: + description: + Rx Programmable Burst Length. If set, DMA rx will use this + value rather than snps,pbl. + $ref: /schemas/types.yaml#definitions/uint32 + enum: [2, 4, 8] + + snps,no-pbl-x8: + $ref: /schemas/types.yaml#definitions/flag + description: + Don\'t multiply the pbl/txpbl/rxpbl values by 8. For core + rev < 3.50, don\'t multiply the values by 4. + mdio: type: object description: @@ -287,49 +313,6 @@ dependencies: allOf: - $ref: "ethernet-controller.yaml#" - - if: - properties: - compatible: - contains: - enum: - - allwinner,sun7i-a20-gmac - - allwinner,sun8i-a83t-emac - - allwinner,sun8i-h3-emac - - allwinner,sun8i-r40-emac - - allwinner,sun8i-v3s-emac - - allwinner,sun50i-a64-emac - - snps,dwxgmac - - snps,dwxgmac-2.10 - - st,spear600-gmac - - then: - properties: - snps,pbl: - description: - Programmable Burst Length (tx and rx) - $ref: /schemas/types.yaml#definitions/uint32 - enum: [2, 4, 8] - - snps,txpbl: - description: - Tx Programmable Burst Length. If set, DMA tx will use this - value rather than snps,pbl. - $ref: /schemas/types.yaml#definitions/uint32 - enum: [2, 4, 8] - - snps,rxpbl: - description: - Rx Programmable Burst Length. If set, DMA rx will use this - value rather than snps,pbl. - $ref: /schemas/types.yaml#definitions/uint32 - enum: [2, 4, 8] - - snps,no-pbl-x8: - $ref: /schemas/types.yaml#definitions/flag - description: - Don\'t multiply the pbl/txpbl/rxpbl values by 8. For core - rev < 3.50, don\'t multiply the values by 4. - - if: properties: compatible: -- 2.29.2