From patchwork Mon Mar 27 21:35:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 7300 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp1804151vqo; Mon, 27 Mar 2023 14:39:10 -0700 (PDT) X-Google-Smtp-Source: AKy350andpRReXZcgb0XsPNQAfww0Tyd6YcFXl+T0eHzbcEE0OAGN89TpXUPM5rUbVcvGJzvErrT X-Received: by 2002:a05:6402:455:b0:4bf:c590:3c57 with SMTP id p21-20020a056402045500b004bfc5903c57mr13027332edw.2.1679953150710; Mon, 27 Mar 2023 14:39:10 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1679953150; cv=none; d=google.com; s=arc-20160816; b=fJZa0SU73iL8KUJbiegQlzkIIpFVl+VPrqHkCLOv5UZK4yXfxPkzRgfnGkpiLh5VOZ +p6bzJLU1PwuC4Ea+/MZNr00BrHis9JXN81DbeY/Fx9MkF+i66j3D15E1aqMoqpwvs80 sJ2e7Z61xozzNnrcjpTdZLjlLx1//a0eOwR5UDt7v+yjkOvUlXl/CTbyCsVU6UWZ8hFj D91ArmNodQqiZnGP53z6h9cvbxBBkDJ0HuNt/3NLcaeoQ4vIDOnOT6oxSzu9ot0W5ZfC wXCTeMMbS9qQZJ4YDxSOyoMKUM8szz2+BeGzcm5dn6r/PPTjSfOZfvg5LPJxVosqpJXo Kcag== 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=b9KlMc3UMJlU3Qd6ynnT/HM7quka973rYmagEVGFXRE=; b=ax40F17gTByopkPVBRJOaFoOFdRINnvsU4KhDm51EOoanPntQQR1eqa8PwFOhaLze/ WphqliIlTkWocKzijpIHGz8OUG18oPZ6cXDVDtDM524ccbHV/3nf3ka+NkheHNyONUAD vpXtzYo0kVcAG1Xg8avCRcW/7T+oOgWw/emJVizelHwY97BnkQbklNJrNrZ4E5SrGM9b mh+nruOTqSE1sRj44izT50cr1Ke7RnfDdPxuEhJKQ8ktw8wgQMRky84NHVZ98+l6Vw7g jdxLcqNFVhrj/xCwNYrle5PLDL5lM2/8SiR81YFbMh2eHFhKf6cmpwsZ6VEZqRfQc8yW 0URw== 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 ca23-20020aa7cd77000000b004cdc92cc419si27651290edb.11.2023.03.27.14.38.47; Mon, 27 Mar 2023 14:39:10 -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 S230417AbjC0Vf0 (ORCPT + 99 others); Mon, 27 Mar 2023 17:35:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232349AbjC0VfY (ORCPT ); Mon, 27 Mar 2023 17:35:24 -0400 Received: from fudo.makrotopia.org (fudo.makrotopia.org [IPv6:2a07:2ec0:3002::71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AEC46273D; Mon, 27 Mar 2023 14:35:21 -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 1pguUj-0008Kx-2f; Mon, 27 Mar 2023 23:35:13 +0200 Date: Mon, 27 Mar 2023 22:35:00 +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 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?1761558554988539129?= X-GMAIL-MSGID: =?utf-8?q?1761558554988539129?= 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. 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 | 165 +++++++++++++++ drivers/net/dsa/mt7530-mmio.c | 126 ++++++++++++ drivers/net/dsa/mt7530.c | 375 ++++++++++++++++++---------------- drivers/net/dsa/mt7530.h | 39 ++-- 6 files changed, 526 insertions(+), 199 deletions(-) create mode 100644 drivers/net/dsa/mt7530-mdio.c create mode 100644 drivers/net/dsa/mt7530-mmio.c