From patchwork Tue Mar 28 22:16:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 7367 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp6090vqo; Tue, 28 Mar 2023 15:21:05 -0700 (PDT) X-Google-Smtp-Source: AKy350bMO/T1NHxng7RXK11VRZPecBLiQZyXSA2dUghSoiSKvW3ZDbZ8g4clo/oFMt+fQej8dRXg X-Received: by 2002:a17:90b:390e:b0:23d:1aae:29e5 with SMTP id ob14-20020a17090b390e00b0023d1aae29e5mr18071921pjb.20.1680042065129; Tue, 28 Mar 2023 15:21:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1680042065; cv=none; d=google.com; s=arc-20160816; b=RKVYoMQZvomV8JX8eQV3Crn+mAW8U9xtTpdlxRBptKkMcMaWnrSZv64AuaimXn7fbT CWmzXEkJ7IvZrsHtxhTMvGjSl1DAID4rF8qQtOJ6q6J26jRX6qZ5u32nWfRvq9bv6u6l OGKy/9njmfpBTE/KaFqZrh5t2dH87d3ndaYnyABWu8Tg0gut31eTCisXirVOF7BZgeHt wB6ea+wXhZ9Ny1UuNbP7zI2VJH7esacc/5foTJ9Rsr9BBrBPIPW9GiGEk7dLLrbrjTUu y7Orqy3DofR6v8a90zX69ngJwz2qUCxSVcS9wNq5cM2/aYsMs3V1ayBoASdSTv99UBUh bCrg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-disposition:mime-version:message-id :subject:cc:to:from:date; bh=2H9gLauNFrO6dQLJmCM4+M0MVUVs65buEAcWQQ7v0MI=; b=qZqZcJjAXxcjfWiltDZCTkk2EBJeqHXEcYdB3F3MsNWWdd8RiKd0aZQY3bt5skrXjg OzzjoDgFVLrSFSiRL5AJZXLjm2lv1Q4wMNjVdUgiSwf5tNaZBQgGkIlavzNKJbU7VA/1 ocLoS+j51aROmCfVHnB/fF1xJwP32iyCmXlvKO7bGGSECW/M4nk1zMxUwSiQN+cdqhxg ko3yGQ9ofva0KpCl/AQaib5PGVi8/A0/y0rJCMpxzD95IitSXL+d6RRlGzLvrWIrYqxB Lt73kHgbEezAVHeXoxYxRpQuDW8Bgrq8Zh+pDS9Y3aSBAkvWF46Le7W5NJWQcCS/4H8T HHgg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id f1-20020a170902ce8100b001a271348785si35719plg.462.2023.03.28.15.20.52; Tue, 28 Mar 2023 15:21:05 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230101AbjC1WQi (ORCPT + 99 others); Tue, 28 Mar 2023 18:16:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229708AbjC1WQh (ORCPT ); Tue, 28 Mar 2023 18:16:37 -0400 Received: from fudo.makrotopia.org (fudo.makrotopia.org [IPv6:2a07:2ec0:3002::71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A52D271C; Tue, 28 Mar 2023 15:16:35 -0700 (PDT) Received: from local by fudo.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.96) (envelope-from ) id 1phHc8-0003Zs-2F; Wed, 29 Mar 2023 00:16:24 +0200 Date: Tue, 28 Mar 2023 23:16:17 +0100 From: Daniel Golle To: netdev@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Andrew Lunn , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Matthias Brugger , AngeloGioacchino Del Regno , Sean Wang , Landen Chao , DENG Qingfang , Philipp Zabel Cc: Sam Shih , Lorenzo Bianconi , John Crispin , Felix Fietkau Subject: [RFC PATCH net-next v2 0/2] net: dsa: add support for MT7988 Message-ID: MIME-Version: 1.0 Content-Disposition: inline X-Spam-Status: No, score=0.0 required=5.0 tests=SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1761651788314589924?= X-GMAIL-MSGID: =?utf-8?q?1761651788314589924?= The MediaTek MT7988 SoC comes with a built-in switch very similar to previous MT7530 and MT7531. However, the switch address space is mapped into the SoCs memory space rather than being connected via MDIO. Using MMIO simplifies register access and also removes the need for a bus lock, and for that reason also makes interrupt handling more light-weight. Note that this is different from previous SoCs like MT7621 and MT7623N which also came with an integrated MT7530-like switch which yet had to be accessed via MDIO. Split-off the part of the driver registering an MDIO driver, then add another module acting as MMIO/platform driver. Changes since initial RFC: * use regmap for register access and move register access to bus- specific driver * move initialization of MT7531 SGMII PCS to MDIO driver Daniel Golle (2): net: dsa: mt7530: split-off MDIO driver net: dsa: mt7530: introduce MMIO driver for MT7988 SoC drivers/net/dsa/Kconfig | 16 +- drivers/net/dsa/Makefile | 4 +- drivers/net/dsa/mt7530-mdio.c | 309 ++++++++++++++++++++++ drivers/net/dsa/mt7530-mmio.c | 143 ++++++++++ drivers/net/dsa/mt7530.c | 479 ++++++++++++++-------------------- drivers/net/dsa/mt7530.h | 38 +-- 6 files changed, 686 insertions(+), 303 deletions(-) create mode 100644 drivers/net/dsa/mt7530-mdio.c create mode 100644 drivers/net/dsa/mt7530-mmio.c