From patchwork Mon Mar 13 22:50:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 662768 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 A1DFDC6FD1C for ; Mon, 13 Mar 2023 22:53:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229757AbjCMWxh (ORCPT ); Mon, 13 Mar 2023 18:53:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58996 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229612AbjCMWxH (ORCPT ); Mon, 13 Mar 2023 18:53:07 -0400 Received: from post.baikalelectronics.com (post.baikalelectronics.com [213.79.110.86]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 77A8792726; Mon, 13 Mar 2023 15:52:27 -0700 (PDT) Received: from post.baikalelectronics.com (localhost.localdomain [127.0.0.1]) by post.baikalelectronics.com (Proxmox) with ESMTP id 5CF5CE0EBB; Tue, 14 Mar 2023 01:51:22 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= baikalelectronics.ru; h=cc:cc:content-transfer-encoding :content-type:content-type:date:from:from:in-reply-to:message-id :mime-version:references:reply-to:subject:subject:to:to; s=post; bh=/8CHQKcSQNOd84jUFb0GyleIApZIHIOE6ipgEgcboPQ=; b=ZuW2NnJXGaCa c8rmEbdZS4jhKDKbFuLmgLUJ+xIQ3xyiHEkmBOC7PdC6lZ7b+c5VFWNEbQPmZX/r BJAccZwbsCKjZvg5sCodLLvxDU7/kYeB0NoZnb+fLzdRMC1+gNOzYG+fYnWWmvKc TVssdaQGDKLUn6Eam7qkE2qryHILJKM= Received: from mail.baikal.int (mail.baikal.int [192.168.51.25]) by post.baikalelectronics.com (Proxmox) with ESMTP id 3DF24E0E6A; Tue, 14 Mar 2023 01:51:22 +0300 (MSK) Received: from localhost (10.8.30.10) by mail (192.168.51.25) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 14 Mar 2023 01:51:21 +0300 From: Serge Semin To: Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Rob Herring , Krzysztof Kozlowski CC: Serge Semin , Serge Semin , Alexey Malahov , Pavel Parkhomenko , Christian Marangi , Richard Cochran , Biao Huang , Yang Yingliang , , , , , Subject: [PATCH net-next 10/16] dt-bindings: net: dwmac: Add AXI-bus properties constraints Date: Tue, 14 Mar 2023 01:50:57 +0300 Message-ID: <20230313225103.30512-11-Sergey.Semin@baikalelectronics.ru> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230313225103.30512-1-Sergey.Semin@baikalelectronics.ru> References: <20230313225103.30512-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-Originating-IP: [10.8.30.10] X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Currently none of the AXI-bus non-boolean DT-properties have constraints defined meanwhile they can be specified at least based on the corresponding device configs. Let's do that: + snps,wr_osr_lm/snps,rd_osr_lmt - maximum number of outstanding AXI-bus read/write requests is limited with the IP-core synthesize parameter AXI_MAX_{RD,WR}_REQ. DW MAC/GMAC: <= 16, DW Eth QoS: <= 32, DW xGMAC: <= 64. The least restrictive constraint is defined since the DT-schema is common for all IP-cores. + snps,blen - array of the burst lengths supported by the AXI-bus. Values are limited by the AXI3/4 bus standard, available AXI/System bus CSR flags and the AXI-bus IP-core synthesize config . All DW *MACs support setting the burst length within the set: 4, 8, 16, 32, 64, 128, 256. If some burst length is unsupported a zero value can be specified instead in the array. Signed-off-by: Serge Semin --- Documentation/devicetree/bindings/net/snps,dwmac.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml index d1b2910b799b..f24718a8d184 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -484,11 +484,17 @@ properties: $ref: /schemas/types.yaml#/definitions/uint32 description: max write outstanding req. limit + default: 1 + minimum: 1 + maximum: 64 snps,rd_osr_lmt: $ref: /schemas/types.yaml#/definitions/uint32 description: max read outstanding req. limit + default: 1 + minimum: 1 + maximum: 64 snps,kbbe: $ref: /schemas/types.yaml#/definitions/uint32 @@ -501,6 +507,8 @@ properties: this is a vector of supported burst length. minItems: 7 maxItems: 7 + items: + enum: [256, 128, 64, 32, 16, 8, 4, 0] snps,fb: $ref: /schemas/types.yaml#/definitions/flag